Accessories Focus Adapter FA26-S45 with Thread M45x0.75 Focus Adapter FA26-S55 with Thread M55x0.75 High-precision adapter with linear tracking rods for precise travel of the focussing encasement, with locking of the focus position High-precision adapter with linear tracking rods for precise travel of the focussing encasement, with locking of the focus position Optomechanical component as housing for line scan cameras of the family -XL Optomechanical component as housing for line scan cameras of the family -XL • Focussing range 30 mm, 1 turn of the focussing ring corresponds to 10 mm • Focussing range 30 mm, 1 turn of the focussing ring corresponds to 10 mm • Screws for locking the focus • Screws for locking of the focus • Thread M45x0.75 for extension rings and adapters (adapter M45-39 for lens thread M39x1/26" or adapter with V-groove for a rotatable lens) The Adapter AC46-55 adds 17.5 mm to the optical tube length. L H AM43 The AM43-M45 accepts the lens adapter with V-groove AC43 Ø58 h8 M39x1/26’’ AC43 Order Code M39xG26-AC43 (length L=8.2 mm) M39x26G-AC43-S (length L=1.5 mm) Dimensions - Focus Adapter FA26-S45 Dimensions - Focus Adapter FA26-S55 8 8 44 44 M55x0.75 Ø 71.25 f8 72 M45x0.75 Ø 71.25 f8 3 51 with adapter M55x0.75 10 84 3 40.5 with adapter M45x0.75 10 72 H=Length L Lens Adapter V-Groove AC43 to M39x1/26" (Leica) 84 Ø58 ZR55-… Order Code 15 = Length 15 mm 25 = Length 25 mm 60 = Length 60 mm Ø47.5 M45x0.75 Order Code AM43-M45 (length L=35 mm) AM43-M45-S (length L=20 mm) Extension Rings ZR55-... M55x0.75 H Lens Adapter M45x0.75 to AM43 Ø58 f8 17.5 M55x0.75 Thread ZR-L 25 Order Code M45x0.75 15 = Length 15 mm on both sides 25 = Length 25 mm (internal/ 60 = Length 60 mm external) 87 = Length 87 mm It accepts the AC46 V-groove of the Inspec.x macro lenses. M45x0.75 M45x0.75 Ø50.5 AC46 AC46-55 Order Code 3.7 Extension Rings ZR-L... M45x0.75 M55x0.75 M39-45 Order Code M39x1/26" – M45x0.75 The Adapter M39-45 adds 3.7 mm to the optical tube length Accessories for FA26-S55: Extension Rings and Lens Adapters Lens Adapter M55x0.75 to AM46 M55x0.75 M45x0.75 Lens Adapter M45x0.75 to M39x1/26" (Leica) M39x1/26’’ Accessories for FA26-S45: Extension Rings and Lens Adapters • Thread M55x0.75 for extension rings and adapters (adapter AC4655 for lens thread M55x1/26") 90 Ø4.3 45 40 31.5 Ø4.3 M3 90 80 9 8.5 20 6 40 23 8.5 Ø4.3 M4 M3 10 0 10 31.5 40 45 80 with adapter M55x0.75 8 M55x0.75 40 8.5 23 40 23 90 80 8 6 M4 10 0 10 31.5 40 45 69.5 with adapter M45x0.75 M45x0.75 Ø4.3 45 40 31.5 8.5 90 40 23 9 20 Focussing and Alignment Mechanism Lens focussing, azimuth alignment and locking C A B Camerafamily-XL_ZK.indd • Page 37 C B C F A D E D F Assembly and adjustment tools: see page 60 E Linear tracking rods Focussing ring, range ±15 mm (1 turn = 10 mm) Screws for locking the focussing encasement, Allen key 1.5 V-groove adapter M39x26G-AC43 for free alignment of the lens angle of rotation, lens thread M39x1/26'' Aperture stop setting Screw for locking the lens housing, hex Allen key 1.5 C 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • 37 www.SuKHamburg.com Connection Cables for Line Scan Cameras Camera back view and interfaces External synchro- Cable for external synchronization nization Data / control cable CAT6 cable for line scan cameras with Camera GigE VisionTM interface Shielded CAT6 patch cable, halogen-free, both sides with RJ45 connectors for Gigabit Ethernet. Connectors: Hirose plug HR10A, female 12-pin (camera side) Phoenix 6-pin connector incl. terminal block Order Code SK9024.3 3 m length SK9024.5 5 m length Other lengths on request. Order Code CAT6.3 3 m length CAT6.5 5 m length CAT6.10 10 m length CAT6.30 30 m length Max. length = 100 m USB 3.0 Cable for connecting a USB 3.0 line scan camera to a PC Camera Connectors: Camera: USB 3.0 plug, type μB, with lock screws PC: USB 3.0 plug, type A (also fits a USB 2.0 type A socket Order Code SK9020.3 SK9020.5 CameraLink External synchronization cable for line scan cameras with USB 3.0 interface Connectors: Hirose plug HR10A, female 6-pin (camera side) Phoenix 6-pin connector incl. terminal block Order Code SK9026.3 3 m length SK9026.5 5 m length Other lengths on request. 3 m length (standard) 5 m length Control cable SK9018... for line scan cameras with CameraLink interface 26-pin shielded cable, both ends with mini-ribbon connector (male 26-pin) SK9018.5-MM External synchronization cable for cameras with GigE VisionTM interface External synchronization is provided via PC interface (CameraLink grabber board) Order Code MM = both ends (male) 3 = 3 m cable length 5 = 5 m (standard cable length) x = length of choice Merger Box Analog PC interface (TTL) SK9015.1.5MF CAB0515.10 Order Code MF = connector (male /female) 1.5 = 1.5 m length 0.2 = 0.2 m extension cable for SK9015.0.2-MF, 10 m Combined synchronization and power cable for line scan cameras with USB 3.0 interface and additional power supply Connectors: Hirose plug HR10A, female 6-pin (camera side) Phoenix 6 pin connector incl. terminal block Order Code SK9016.1.5 1.5 m length Cable for supply power SK9015... for line scan cameras with CameraLink interface Shielded cable with connector Lumberg SV60 (male 6-pin) and connector Hirose HR10A (female 6-pin) External synchronization is provided via PC interface Power Supply PS051515 Order Code Input: • 100–240V AC • 0.8A • 50/60 Hz Input connector according to IEC 320 (3-pin) Output: • 5V DC/2.5A • 15V DC/0.5A • -15V DC/0.3A Output connector Lumberg KV60 (female 6-pin), length 1 m Power Supply PS051515 Order Code Input: • 100−240V AC • 0.8A • 50/60 Hz Input connector IEC 320 (3-pin) Output: • 5V DC/2.5A • 15V DC/0.5A • -15V DC/0.3A Output connector Lumberg KV60 (female 6-pin), length 1m Power Supply PS051515 Order Code Input: • 100–240V AC • 0.8A • 50/60 Hz Input connector according to IEC 320 (3-pin) Output: • 5V DC/2.5A • 15V DC/0.5A • -15V DC/0.3A Output connector Lumberg KV60 (female 6-pin), length 1 m not required SK9193D SK9192D SK9190D Connection cable SK9019... for line scan cameras with LVDS inPC terface‚ camera series XSD, DPD, DPT, DJRC interface etc. Shielded 36-pin cable for camera and video signal. Standard: 3 m cable length, both ends 36-pin Centronics connector (female). SK9019.3 FF Order Code FF = connector both ends (female) F = connector one end (female) 3 = 3 m (standard) max. 5 =5m length = 50m x = length of choice Connection cable SK9017 for line scan cameras with PC analog interface, camera interface series SD, JRI, JRC, etc. Cable set of shielded control and coaxial cables. Control cable with 15-pin sub-D connectors. SK9017.3 Cable for supply power SK9015... for line scan cameras with GigE Vision™ interface Shielded cable with connector Lumberg SV60 (male 6-pin) and Hirose HR10A (female 6-pin) External synchronization is provided via PC interface Power supply cable for merger box Shielded cable with Lumberg connector SV60 (male 6-pin) and sub-D connector (female 9-pin) SK9023.1.5 Order Code Standard cable length 1.5 m Power Supply PS051515 Order Code Input: • 100–240V AC • 0.8A • 50/60 Hz Input connector according to IEC 320 (3-pin) Output: • 5V DC/2.5A • 15V DC/0.5A • -15V DC/0.3A Output connector Lumberg KV60 (female 6-pin), length 1 m External synchronization is provided via PC interface not required Cables_ZK.indd • Page 38 LVDS Connection cable SK9019... for line scan cameras with LVDS interface‚ camera series XSD, DPD, DPT, DJRC, etc. Shielded 36-pin cable for camera and video signal. Standard: 3 m length with both ends 36-pin Centronics connector (female). SK9019.3 FF Order Code FF = connector both ends (female) F = connector one end (female) 3 = 3 m (standard) max. 5 =5m length = 20m x = length of choice Power Supply SK9015.1.5MF Order Code MF = connector (male/female) 1.5 = 1.5 m (standard) 3 = 3 m cable length x = length of choice max. length =10 m LVDS External power supply Cable for power supply Order Code 3 = 3 m (standard) 5 = 5m 38 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • www.SuKHamburg.com Formulae for Lens Selection After selecting a line scan camera, a lens appropriate to the task must be chosen and the number and size of extension rings determined. The most suitable lens extension and appropriate depth of focus can be calculated exactly. Step 5: Resolution. A large F-number causes a reduction of resolution because of diffraction. The resolution of the imaging has to be controlled (F11). For magnifications E> 6, an effective F-number K’ must be included instead of K (F9). The resolution 'ymin must not exceed the pixel pitch of the line sensor. Figure 1: Schematic depiction of the imaging system and definition of variables used Calculation is performed in the following 5 steps: Step 1: Magnification. For a given measuring range L and a selected line scan camera with sensor length S, the magnification E can be calculated, see (F2). Step 2: Focal length. With magnification and the given measuring distance OO’ then the focal length f of a suitable lens can be calculated, see (F3). Conversely, for a given lens focal length f and magnification E, the required measuring distance OO’ can be calculated, (F6). Step 3: Lens extension and tubes length. To achieve a sharply focussed image, the lens must be a defined distance from the line sensor. For CCTV lenses and photo lenses, the lens extension 's is calculated (F4) and set using the focussing mechanism itself. For scan and macro lenses, the lens extension 's is set using an external focussing mechanism. Additional extension rings are required for extremely large magnifications. A required tube length LT is calculated from (F4) and (F5) and implemented with extension rings and – in the case of scan and macro lenses – with a focus adapter, as well. Step 4: Depth of focus. For imaging objects of a certain thickness then the depth of focus 2z has to be determined. This must be large enough to allow fully focussed imaging of the whole measured object (F8). E= = a’ a . Example: Measuring region L = 290 mm, sensor length S = 28.7 mm: E = S/L = 28.7/290 = 1/10.1 OO’ 1EE + 2 Example: or for E 1/10 approximately f= OO’ 1/E + 2 F4: Lens extension 's’ With the magnification E and focal length f, the lens extension is 's’ = f . E F6: Distance sensor - measuring region OO’ 1 + 2 . f + HH’ E ) Formulae_ZK.indd • Page 39 For E < 1/10 then OO’ approximates (1/E + 2) . f + HH’. Example 1: Video lens B1614A, focal length f = 16 mm, HH’ = 3.85 mm, L = 290 mm, S = 13.3 mm: OO’ = (L/S + 2) . f + HH’ = (290/13.3 + 2) .16 mm + 3.85 mm = 384.7 mm (as an approximation) Example 2: Rodagon 4.0/80, focal length f = 81 mm, HH’ = -2.5 mm, E= 1/6: OO’ = (1/E+E+2). f + HH’ = (1/6+6+2) . 81mm - 2.5 mm = 658.7 mm F7: Field angle w ( ! # ! " $ ! ##% & Line scan sensor with pixel pitch 'y’ Focal length f F-number K Depth of focus 2z 2z $ &! ) The field angle is used for calculating the edge intensity, F10. # % & * for 'y' = 0.014 mm and E = 1/10 Nominal F-number K = 4, magnification E = 1: effective F-number K’ = 2 . K = 8 Relative signal amplitude " $ ! # " " = ( (1 E+ E) )2 w Rule of thumb: The focal length should equal or be more than the sensor length. In this case, the edge intensity is >70% of the center intensity. 22.0 mm 6.7 mm 40.0 mm Total = 68.7 mm The field angle w is determined by the sensor length S, the focal length f S w = arctan . . and magnification E: 2 f (1 + E) Measurement region F10: Edge intensity The edge intensity of line scan signals is determined by the illumination and the field angle w (see F7). Even for homogeneous illumination, the signal amplitude decreases towards the ends of the line: Edge intensity [%] = 100 . cos4 (w) LT = flange focal length + lens extension - (Camera flange length) LT = s’A + 's’ - s’K Example: Rodagon 4.0/80, focal length f = 81 mm, E= 1/6, s’A = 74.7 mm, s’K = 19.5 mm: 's’= f / E = 81 mm/ 6 = 13.5 mm LT = 74.7 mm + 13.5 mm - 19.5 mm = 68.7 mm ( L F5: Tube length LT OO’ = E OO’ w Example: Example 1: Magnification E = 1/10.1 and focal length f = 50 mm: 's’= 50 mm / 10.1 = 4.95 mm Example 2: In macro imaging with E = 1, (1:1 imaging) the lens extension equals the focal length f. With magnification E and focal length f then A a F9: Effective F-number K’, relative signal amplitude For small magnifications E < 1/10 when calculating signal amplitude or the limit of lens resolution caused by diffraction (see F12), the F-number (focal length/ aperture diameter) is replaced by an effective F-number (image range/ aperture diameter). With a nominal F-number K and small magnification E then the effective F-number K’ is calculated from: K’ = K . E . Magnification E = 1/10.1 and OO’ = 605 mm: Focal length f = 605 mm/ (10.1 + 2) = 50 mm Implemented by: focus adapter FA22-40 + focus adapter extension + 2x extension rings ZR20 LO HH’ K z F3: Calculation of focal length f With magnification E and distance sensor-measuring region OO’ f= LT F8: Depth of focus The depth of focus 2z is calculated from 1 1 2z = 2. 'y’. K . (1 + ) E E using the F-number K , the pixel pitch (mm) 'y’, and the magnification E. Example: Pixel pitch 'y’ = 0.014 mm reciprocal magnific. 1/E = 10 F-number K =4 then 2z = 2 .0.014 mm .. 10 (1+10) = 12.3 1 1 1 + = a a’ f S sensor length = measuring region L a’ f s’A Lens focal length (mm) Sensor length (mm) Measurement region (mm) Object range (mm) Image range: Distance of element to H’ (mm) E Magnification w Field angle OO’ Distance from sensor to measurement region (mm) HH’ Principal point distance (mm) (can lengthen or shorten OO’ ) s’K Camera flange length s’A Flange focal length (mm) 's’ Lens extension (mm) LT Tube length consisting of focus adapter FA22-... and extension rings ZR... (mm) LO Lens length (mm) A Working distance (mm) f S L a a’ s’K w Example: Edge intensities calculated for two different field angles using the same sensor length S = 28.7 and magnification E = 1/4: a) focal length f = 50 mm b) focal length f = 28 mm field angle w = 13° field angle w = 22.3° edge intensity = 90% edge intensity = 73% F11: Diffraction limit The resolution of a lens is limited by diffraction and declared using the effective F-number K’ (see F8). The best possible resolution is achieved by closing the lens aperture by 1 to 2 steps, so that the lens resolu tion approaches the diffraction limit. Adjacent image y ! K' elements are distinguishable, therefore, when their distance is: 'y’> 2,4 . O. K’ "# " The optical wavelength O for visible radiation can # be considered to be 550 nm. $ Example: effective F-number K’ = 8 wavelength O = 550 nm %$ 'y’min = 10.6 μm & '()$ 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • 73% F2: Magnification E: The magnification is defined as 's’ 90% F1: Imaging equation Object range and image range are related by the imaging focal length: The formulae F3 to F6 are derived from this equation. Sensor S Fax: +49 40 85 39 97-79 • [email protected] • 39 www.SuKHamburg.com Lenses and Lens Accessories for Line Scan Cameras • • • • Object size Depth of field Magnification Resolution Schäfter+Kirchhoff supplies a wide range of lenses, adapters, extension rings and other accessories for use with their line scan cameras. The three criteria for best choice of lens are the length of the line sensor, the required magnification and the physical space that is available. Video (CCTV), photo, scan and macro lenses from notable suppliers as well as specialist lenses from Schäfter+Kirchhoff can be supplied. Sensor length and required magnification determine the choice of lens • Perturbations • Distortion • Modulation and the resultant focal length that, in turn, affect the physical space occupied as well as the vignetting, distortion and depth of field of the application. Short focal length lenses can be accommodated in a compact space but, in comparison with lenses of longer focal length, are more prone to distortion. Indispensable information and a guide for the appropriate choice of lens are provided on page 39, together with some formulae for calculation of the light characteristics. Lenses, adapters, extension rings and accessories for line scan cameras Lens adapter Camera Mounting bracket Lens Focus adapter Tube extension rings Order Code All camera casing variants and dimensional drawings are presented in section Dimensions, page 58. M1 M2 MC1 MC2 Mounting bracket Mounting bracket Clamping set Clamping set SK5105 SK5105-L SK5102 SK5101 For configurations with tube lengths > 55 mm see mounting systems M3 and M4 , page 41. Adapter F-Mount ĺ page 42 Focus adapter ĺ page 43 M39x1/26" (Leica) A5 Focus adapter ĺ page 43 M39x1/26" (Leica), free rotatable Z1 Extension rings C-Mount ZR E'rings M39x1/26" (Leica) ZR-L Extension rings M45x0.75 A3 A4 O1 Video (CCTV) lenses ĺ table 1 O2 Photo (SLR) lenses with locking mechanism ĺ table 2 O3 Photo (SLR) lenses ĺ table 2 O4 Scan lenses, M39x1/26" ĺ page 42, table 3 O5 Macro lenses, M39x1/26" ĺ page 42, table 3 Camera attachment C-Mount, se ensor length max. 16 mm Z1 MC1 C-Mount M1 AT1 AC1 O1 AL1 A3 MC2 Sensor M2 A4 AG1 Camera attachment thread M40x x0.75, sensor length max. 35 mm M40x0.75 MC1 M45x0.75 O2 A3 M1 AT2 AC2 AL2 F-Mount MC2 A4 O3 Sensor M2 AG2 ZR A5 M39x1/26" (Leica) O4 Camera attachment thread M45x x0.75, sensor length max. 41 mm A3 MC1 M1 AC2 O5 AL2 ZR-L MC2 A4 Lenses-Adapters-Mounting_ZK.indd • Page 40 AT2 Sensor M2 AG2 A5 40 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • www.SuKHamburg.com Camera Lens adapter Focus Adapter Lens Extension rings Order Code All camera casing variants and dimensionsonal drawings are presented in section Dimensions, page 58. A6 Focus adapter ĺ page 37 Focus adapter ĺ page 37 A7 FA26-S45 A1 FA26-S55 A2 For XL / XB / XC camera series also see page 36. O4 Scan lenses, M39x1/26" ĺ page 42, table 3 O5 Macro lenses, M39x1/26" ĺ page 42, table 3 O6 Macro lenses, AS46 ĺ page 44, table 4 O7 Macro lenses, AS46 reversed mount ĺ page 44, table 4 Lens Adapter rotatable M39x1/26" (Leica) Lens Adapter rotatable AC46 ĺ page 44 ZR Camera attachment thread M72x x0.75, sensor length max. 71 mm Extension rings M39x1/26" (Leica) ZR-L Extension rings M45x0.75 ZR55 Extension rings M55x0.75 ĺ page 44 XL-Series Free rotatable lens adapter, 2 piece parts with internal V-groove attachment CT5 CC5 O4 CL5 M39x1/26" (Leica) M45x0.75 M2 ZR-L ZR A1 O5 A6 Sensor CG5 AC46 M55x0.75 also applicable for XB-Series EG5 ET5 EC5 ZR55 A7 O6 A2 and XC-Series FG7 FT7 FC7 O7 EG5 FT7 FC7 Mounting Brackets and Systems Mounting brackets and mounting systems: Schäfter+Kirchhoff supplies mounting brackets, such as specifically designed to accept the camera casings. or M1 M2 , that are Flange Dimension Ø42 mm Flange Dimension Ø47.5 mm Mounting Bracket SK5105 Mounting Bracket SK5105-L Order Code SK5105 SK5105-L 6 6.5 M3 Allen screw DIN 912–M3 x 12 20 16.5 6.5 15 Clamp Order Code Ø4.3 Allen screw DIN 912–M3 x12 M4 Mounting System SK5105-2 SK5101 (set of 4 pcs.) 15 7.5 Ø4 Ø 4.3 Order Code Order Code SK5105-2L 6 6 70 3.5 36 7.5 Ø4 31.5 M4 25 10 Ø4.3 3.5 40 40 For cameras with lens thread size M45x0.75, using extension rings ZR-L ... with extension tube length >60 mm 1/4’’20G 2 Ø4 70 25 10 Ø4.3 3.5 1/4’’20G 36 31.5 M4 70 63 3.5 M4 Mounting System SK5105-2L SK5105-2 For cameras with lens thread sizes C-Mount and M40x0.75, using extension rings ZR... with tube length >60 mm 3.5 40 63 70 1/4’’ 20G 70 63 40 SK5102 (set of 4 pcs.) 36 Ø 3.3 MC2 Clamping Set SK5101 M4 2 Ø4 70 63 Lenses-Adapters-Mounting_ZK.indd • Page 41 M3 Order Code 50.3 41.7 MC1 Clamping Set SK5102 Clamp 6 50 66 16.5 20 3.5 36 Ø 3.3 SK5105-L with clamping set SK5101, mounted at front side for fixing of GigE camera 50 66 M3 10 10 For cameras with lens thread size M45x0.75 1/4’’ 20G Order Code M2 10 10 For cameras with lens thread sizes C-Mount and M40x0.75 50.3 41.7 M1 The mounting brackets M3 and M4 are specially designed for the fitting of extension rings and locate the camera centrally on the extension ring. 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • 41 www.SuKHamburg.com Lenses, Lens Adapters and Tube Extension Rings Video (CCTV) Lenses CCTV lenses are small in size, yet highly responsive to light and have an integrated focussing mechanism. Extension rings Z1 enable smaller objects to be measured or inspected. Video (CCTV) Lenses O1 with C-mount (threaded connector) are available in various formats depending upon the image size. • 1" for 16 mm max. sensor lengths • 2¼3" for 11 mm max. sensor lengths row S s'A Min. close focus range (lens front edge to object plane) Filter thread Outer diameter Mount Principal point distance K CCD sensor length max. Flange focal length ( ) (special series -40) f Field of view O1 Video (CCTV) lenses with threads for the attachment of threaded accessories Attachment: C-Mount Attachment length: 17.53 mm Other CCTV lens are available on request Accessories: Extension rings for close-up and macro-pictures F-number Video (CCTV) Lenses, C-Mount 1"-32 TPI Focal length Table 1 Extension Rings C-mount Z1 6 items: 0.5 – 1 – 5 – 10 – 20 – 40 mm Order Code EX-C6 0.5 5.0 1.0 10.0 20.0 40.0 Extension rings (single items) Ring size Order Code HH' 0.5 EXT-0.5 1.0 EXT-1 5.0 EXT-5 10.0 EXT-10 Order Code Photo Lenses conventional bayonet connector. A locking device for fixation of the depth of focus and focal length prevent unintentional maladjustments. Photo lenses: Photo lenses are suitable for line cameras with sensor lengths up to 36 mm. A distinguishing feature is their integral focussing mechanism and they provide good performance at a reasonable price. Two model series are available: Standard lens O3 with F-Mount (bayonet): Schäfter+Kirchhoff supply the model series AF from Nikon. Schäfter+Kirchhoff supply the lens adapter A3 for the attachment of photo lenses with a bayonet attachment (e.g. F-Mount) to line cameras with lens threads M40x0.75 or M45x0.75. Series SK: O2 Schäfter+Kirchhoff provide a special series of photo lenses with focal lengths from 20 to 85 mm for industrial measurement applications. The lens is attached by a screw thread to the camera casing, obviating the unwanted increase in size of the object image associated with the use of a Photo Lenses (SLR Lenses) A3 f K S Lens Adapter F-Mount 3) s'A HH' Min. close focus range (lens front edge to object plane) O3 Length Series -40 A3 LO A Filter thread M40x0.75 or M45x0.75 Principal point distance O2 Flange focal length ( ) (special series -40) Attachment thread: Max. magnification series AF Accessory: A3 CCD sensor length max. Photo lenses with F-mount attachment F-number S+K photo lenses (special series) with lLocking mechanism for depth of focus and focal length Focal length Table 2 AOC - F - 40 Order Code Attachment thread 45 = M45x0.75 40 = M40x0.75 32 = M32x0.75 C = C-Mount 1"-32-TPI A3 F = Nikon F-Mount Order Code Order Code 2) AF = Nikon lens, series AF with F-Mount 3) Macro lens, smallest magnification, E = 1 4) Infinite range ... -45 ... -45 ... -45 ... -45 ... -45 ... -45 ... -45 Other photo lenses are available on request Scan Lenses and Macro Lenses Scanning lenses O4 – O5 and macro lenses O6 – O8 are optimized for infinite imaging (E = 1/2 – 1/20), unlike conventional photo and CCTV lenses. Sensor lengths of up to 90 mm can be accommodated and the lenses provide high quality images with a flat field area within their operating range. Scan Lenses and Macro Lenses Scan Lenses E1/2 –1/20 Attachment thread M39x1/26" (Leica) Order Code Scan Lenses E0.20 – 0 Special Lens (only for lens-specific adapters) Order Code Macro Lenses E0.33 – 2 Attachment thread M39x1/26" (Leica) Extension ring 50 mm ZR 50 Extension of focus adapter Extension ring 20 mm ZR 20 LT Extension ring 10 mm ZR 10 Length of extension tube A Focus adapter FA 22-40 Distance lens - object OO' Lenses-Adapters-TubeExt_ZK.indd • Page 42 Order Code Distance CCD - object LO Filter thread HH' Outer diameter Length s'A Mount Principal point distance S Flange focal length ( ) K Range of magnification f Magnification optimum Accessories Table 5: Focus adapter FA22-... Extension ring ZR... Table 6: Focus adapter FA22R-45 Extension ring ZR-L ... CCD sensor length max. O6 max. resolution O5 F-number O4 These distances and lengths are designed for optimal imaging Focal length Table 3 The focus adapter FA22-40 A4 and optional ZR type extension rings, ZR10 – ZR50, provide a mechanically precise and robust connection between the scan lens and the line cameras from Schäfter+Kirchhoff. 42 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • www.SuKHamburg.com Tube Dimension Ø42 mm Tube Dimension Ø47.5 mm Scan and macro lenses do not have their own focussing mechanism and require the focus adapter FA22-... to be attached to the line camera. The focus adapter can be supplied with various threads for attachment to the camera (from C-mount to M42x1, see Order Code). At the front, a standard thread M39x1/26“ (Leica) is provided for the attachment of a scan or macro lens. The focus adapter incorporates a fine 11 mm thread that enables adjustment within the range 22 to 33 mm (see formulae F4 and F5 with example calculations on page 39). Three circumferentially placed grub screws are used to lock the finalized focal length and depth of field. The ZR... series of extension rings supply the separation required between camera and lens for near and macro imaging. For the camera series with Ax2 casing and up to 41 mm sensor length, Schäfter+Kirchhoff supplies extension rings and a focus adapter with a larger diameter to reduce any vignetting problems. In this application, the focus adapter FA22R-45 is placed behind the lens. The focus adapter incorporates a fine 10 mm thread that enables adjustment within the range 22 to 32 mm. Three circumferentially placed grub screws are used to lock the finalized focal length and depth of field. After adjustment, the lens is rotatable in the focus adapter so that the scale elements of the lens are always visible. The Apo-Rodagon D1x 4.0/75 lens with the focus adapter FA22R-45, extension ring ZR-L87 and the camera SK4096... is for 1:1 imaging applications, and with the extension ring ZR-L60 and Apo-Rodagon D2x4.5/75 for 1:2 magnification. Focus Adapter for L-Mount Lenses (M39x1/26" Leica) Attachment thread (male) Focus adapter M45x0.75, free rotatable FA22R-45 length L: Order Code min. 22 mm max. 30 mm Ø 53 22+11 Attachment thread M45x0.75 (male) M39x1/26’’ M39x1/26’’ Order Code 42 = M42 x 1 40 = M40 x 0.75 39 = M39 x 1/26" 32 = M32 x 0.75 C = C-Mount M45x0.75 A5 Focus adapter FA22-... FA22-40 M40x0.75 A4 Attachment thread (male) Order Code min. max. FA22RL-40 Order Code length L: min. max. FA22R-45 length L: Order Code min. 30 mm max. 38 mm Attachment thread M45x0.75 (male) L Ø 53 L Ø 53 M39x1/26’’ FA22R-40 length L: M45x0.75 Focus adapter M40x0.75, free rotatable M40x0.75 A5 M39x1/26’’ L Ø 53 Tube Extension Rings H H = Length Ø 42 f8 Configuration Examples H= Length Ø47.5 f8 O1 AT... AC... AL... Lenses-Adapters-TubeExt_ZK.indd • Page 43 H Line camera with macro lens f’ 75 mm for 1:1 imaging M1 Mounting bracket SK5105 MC1 Clamping set SK5102 O1 CCTV lens B2514D M1 MC1 A3 O3 Mounting bracket SK5105 Clamping set SK5102 Lens adapter AOC-F-C Foto lens AF 1.4/50 D M1 MC1 A4 O4 Mounting bracket SK5105 Clamping set SK5102 Focus adapter FA22-C Scan lens Rodagon 2.8/50 Example: M45x0.75 Both ends ZR-L 25 Order Code with thread 15 = Length 15 mm M45x0.75 25 = Length 25 mm (male/female) 60 = Length 60 mm 87 = Length 87 mm M39x1/26’’ ZR 10 Both ends with thread Order Code M39 x 1/26" 10 = Length 10 mm 15 = Length 15 mm (Leica male/ female) 20 = Length 20 mm 50 = Length 50 mm M45x0.75 ZR-L Extension rings M45x0.75 Extension rings M39x1/26" M39x1/26’’ ZR A4 ZR M3 ZR ZR O5 O3 O4 Focal length locking system Line camera GigE-Interface M2 Mounting bracket SK5105-L MC2 Clamping set SK5101 O2 Photo lens series SK1.8/50-45 focus Appropriate components: A4 ZR... M3 O5 O2 Focus adapter FA22-40 Extension ring 1x ZR50 2x ZR20 Mounting system SK5105-2 Macro lens APO-Rodagon D1x 4.0/75 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • 43 www.SuKHamburg.com mm Distance lens to object LO mm Filter thread HH' mm Outer diameter Length s'A mm Mount Principal point disatance ȕ Flange focal length () Range of magnification S mm Magnification ȕ optimum μm K Distance CCD to object O6 CCD sensor length max. F-number f mm Max. resolution at CCD sensor Macro Lenses Focal length Table 4 OO' mm A mm 171 Macro Lenses 1:5.6/ f' 105 mm 80.3 Imaging area 57.3 Sensor Order code inspec.x L5.6/105 ȕ-1 105.4 5.6 5 70 1.0 0.85-1.2 65.5 -7.28 72.5 - 59 M43 414 2 inspec.x L5.6/105 ȕ-0.76 105.4 5.6 5 70 0.76 0.6-0.9 65.4 -7.27 72.5 - 59 M43 422 204 3 inspec.x L5.6/105 ȕ-0.5 105.4 5.6 5 70 0.5 0.4-0.65 65.1 -7.16 72.5 - 59 M43 467 277 4 inspec.x L5.6/105 ȕ-0-33 105.4 5.6 5 70 0.33 0.25-0.5 64.9 -7.37 72.5 - 59 M43 558 385 Macro Lenses 1:5.6/ f' 105 mm reversed O7 41 Imaging area Order code 57.3 Sensor 1 5 inspec.x L5.6/105 ȕ-0.76 105.4 5.6 7 92 1.32 1.1-1.7 65.7 -7.27 72.5 - 59 M43 422 145 6 inspec.x L5.6/105 ȕ-0.5 105.4 5.6 10 140 2.0 1.5-2.5 66.0 -7.16 72.5 - 59 M43 467 118 7 inspec.x L5.6/105 ȕ-0-33 105.4 5.6 14 212 3.0 2-4 66.0 -7.37 72.5 - 59 M43 558 100 Line scan camera SK7500U3TO-XL with focus adapter FA26-S55 and macro lens inspect.x L 5.6/105 for with lens Line camera SK7500U3TO-XL inspect.x L 5.6/105 ß-0.76 L1 in standard format Magnification E = 0.714 Field Of View L = 73.53 mm Distance from sensor to object 00’ = 426.4 mm Working distance 213.3 mm FA26-S55 Focus adapter FA R1 ZR55-60 Extension ring A AC46-55 Adapter Preset focus E=25.9 E = 1.4 and E = 0.7 ZK 00’=426.4 213.1 ZK Line camera SK7500U3TO-XL ZK with lens inspect.x L 5.6/105 ß-0.76 L1 in retroposition Magnification E = 1.4 Field Of View L = 37.4 mm Distance from sensor to object 00’ = 426.4 mm Working distance 140.6 mm Focus adapter FA FA26-S55 ZR55-60 (2x) Extension ring R1 A AC46-55 Adapter Preset focus E=26 R1 L1 E = 0.714 00’= 426.4 30 Line camera SK7500U3TO-XL with macro lens inspect.x 5.6/105 ß-0.76 L1 Focus adapter Order Code SK7500U3TO-XL The lens series inspect.x L 5.6/105 can be used in the standard format (with a miniature image of the object on the sensor) or in the retroposition (with a magnified image of the object on the sensor), see Table 4. Order Code FA26-S55 L1 E = 1.4 1x E = 0.7 Lens 72.5 17.5 R1 Order Code ZR55-60 E = 1.4 Lens adapter 60 M55x0.75 FA Ø71.25 ZK A Extension ring 25.9 E = 0.7 26.3 E = 1.4 12 3 The distance between the sensor and the lens required for the predetermined image size is implemented using focus adapter FA26-55 (see page 37), lens adapter and extension rings. The final focussing adjustments are accomplished using the fine adjustment mechanism of the focus adapter. R1 2x A Order Code AC46-55 L1 Order Code inspec.x L 5.6/105 ß-0.76 AC46-55 17.5 H Ø58 f8 Ø58 15 = length 15 mm 25 = length 25 mm 60 = length 60 mm Order Code M55x0.75 AC46 M55x0.75 Order Code ZR55-... M55x0.75 ZR55 Extension Ring M55x0.75 Lens Adapter AC46-55 H= length Ø58 h8 44 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • www.SuKHamburg.com Lenses-Adapters-TubeExt_ZK.indd • Page 44 Line camera R1 AC46 FA 140.6 M55x0.75 ZK ZK Lens adapter 46 mm V-groove – M55 x 0.75 for macro lens inspec.x L5.6/105 A 285.8 System components A2 FA 213.3 Optical Filters Illumination Components For many measuring tasks, the quality of the raw data in terms of contrast and sharpness can be improved directly through optical filtering. • Edge filters and bandpass filters suppress any ambient light when using direct illumination with laser or LED light sources. • UV-IR blocking filters suppress selectable portions of the non-visible wavelength radiation for contrast enhancement. • Polarizing filters can suppress disruptive reflections from non-metallic surfaces. • Notch filters are used to block the excitation wavelength when acquiring an image of the emitted fluorescence. • Individual filters can be used in combination to satisfy highly specialized requirements in demanding measurement tasks. Sources of illumination Schäfter+Kirchhoff provides mounted filters for all of the lenses listed on pages 41–42. Filters with other threads can be provided on request. • Excimer lamp systems are mercury-free fluorescent tubes equipped with internal reflectors to increase the light efficiency. Long-pass edge filter 100 FLP - 590 - 27 Order Code OG 590 RG 630 • Linear fiber-optic illumination with high efficiency LEDs, halogen or metal vapor lamps is used for direct or higher luminance requirements (for dark-field illumination, direct bright-field illumination). It is advantageous to have a separate lamp housing that is designed for efficient heat dissipation with these lamps. RG 715 60 40 20 27 = M27 x 0.5 40 = M40.5x 0.5 43 = M43 x 0.75 52 = M52 x 0.75 62 = M62 x 0.75 Filter thread 80 Transmission in % Long-pass edge filters transmit only the longer wavelengths from the designated range, i.e. beyond 570 nm for filter OG590 OG590 = 590 RG630 = 630 RG715 = 715 For high measuring frequencies up to 125 kHz and a resulting exposure (integration) time of only a few microseconds, a higher light intensity is required at the line sensor when compared with a conventional area sensor camera collecting at only 60 Hz. • Fluorescent tubes, both linear and U-shaped, are ideal sources of light for transillumination and for direct illumination applications with line scan cameras (efficiency, cost-performance ratio). Illumination is very homogeneous except near the electrode areas at the ends of the glass tube. The linear source has to be sufficiently longer than the measurement range to ensure uniform illumination of the object and, subsequently, the sensor. Electronic suppression of fluorescent tubes is performed using a special series of HF filters for the 50/60 Hz mains frequency. The switching frequency lies above 30 kHz. • Linear LED arrays are used both for directed and diffuse illumination (see pages 33, 35 and 46). With high efficiency LEDs, high luminance and a prolonged life expectancy of many tens of thousands of hours are achieved. 0 550 600 650 700 750 Wavelength in nm Application: Scanning of bank transfer forms The orange bank form is visible to the human eye but invisible to a camera when illuminated with monochromatic red light, reducing data redundancy and increasing system efficiency. A The unfiltered emission spectrum of a fluorescent tube with color code 41 A B The shorter wavelengths below 585 nm become totally undetectable when using the filter type OG 590 Illumination techniques B 436 546 436 612 nm Line sensor signals are not only dependent upon the type and source of illumination but also upon the properties of the illuminated object, whose characteristics can be accentuated or suppressed with the appropriate choice of light source and lighting conditions. 546 612 nm lamp measured object UV-IR blocking filter type 486 FBP - UVIR - 27 Order Code Filter thread 27 = M27 x 40 = M40.5 x 43 = M43 x 52 = M52 x 58 = M58 x 62 = M62 x 0.5 0.5 0.75 0.75 0.75 0.75 Bandpass filter Transmission inin %% Transmission 100 UV-IR blocking filters block undesired UV and IR radiation, enhancing contrast F - POL - 27 Order Code Filter thread 27 = M27 x 0.5 40 = M40.5x 0.5 43 = M43 x 0.75 52 = M52 x 0.75 62 = M62 x 0.75 Transillumination is the most efficient illumination technique. Application: Measurement of width or defining an edge. 2 Front illumination: The fluorescent tube is positioned as closely as possible to the measured object. A split aperture 2.1 is effective in diminishing stray light at the line sensor. The signal amplitude at the line sensor decreases almost linearly with increasing h for smaller lamp distances and for larger distances, more than 3x the lamp diameter, it decreases with 1/h2. 60 40 20 0 400 600 800 Wavelength in in nm nm Wellenlänge 1000 Example: For a distance h0 = 5 mm, the signal is 75% of the saturation exposure and, so, the decay in active signal amplitude for: h1 = 10 mm is 50 %, h2 = 60 mm is 6 %, h3 = 100 mm is 2 %. 100 Central Wavelength 80 Bandpass filters are interference filters that allow the transmission of only a narrow spectral range. They are used for the suppression of extraneous light during image acquisition with monochromatic illumination. FWHM: full-width at half-maximum Specifications available on request. Bandpass filter 1 80 Peak Transmittance 60 40 20 FWHM Wavelength Polarization filters transmit in only one polarization direction and can suppress disturbing reflections from highly reflective surfaces, such as those from glass, plastics or varnish Specifications available on request. Line scan camera Measurement area 60 40 20 Lamp 0 Intensity profile 600 800 Wavelength in nm 0 20 40 60 80 100 The overall distribution of illumination intensity is influenced by the length of the light source and charactersitics of the beam, the distance from the test object and the transmission and reflective properties of the test object (e.g. a high or low reflecting ability). 80 400 0 Decline in edge intensity with insufficient lamp length For a truly uniform illumination, the light source must be significantly longer than the object to be measured. Generally, the illumination covers all parts of the measurement area adequately towards the center while decreasing towards the edges. 100 Transmission in % Beleucht_ZK.indd • Page 45 Notch filters are interference filters that selectively block a defined narrow spectral range. They are particularly useful for the suppression of monochromatic laser radiation. Distance h (mm) 0.5 3 For larger lamp distances h, the decay of brightness can be compensated for by using either of: 3.1 a cylinder lens (Fresnel, spherical or aspheric lens) 3.2 a concave ellipsoidal reflector 0 Lens Notch filter Relative signal amplitude 1 1000 The reflected beam angle is close to 180° for fluorescent lamps, 120° for LEDs and close to 80° for fiber-optic cross-sectional converters. Diffusers and lens arrays in front of the source can also increase the edge intensity. 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • 45 www.SuKHamburg.com LED Line Illumination MTD-LED MTD-LED LED-Linienleuchte Application For high measuring frequencies up to 125 kHz and a resulting exposure (integration) time of only a few microseconds, a higher light intensity is required on the line sensor when compared with a conventional area sensor camera collecting at only 60 Hz. Very high intensities are achieved with modern LED line lights like the MTD LEDCP series. These compact lights were especially developed for line scan camera applications. Their intensity profile in the line direction is tunable using one of 16 user-programmable profiles. The MTD LED-CP line lights are available with blue, red, and infra-red light, they are provided in lengths ranging Figure 1: MTD-LED line light from 300 to 3 000 mm. Inspection task with variable illumination requirements Control of the illumination intensity, depending on the material under test Metal T3 Applications • Front-light and back-light for web inspection Paper • Optimized illumination with variable illumination profiles Wood Special Features T2 • Temperature monitoring, automatic switching to min. output power in case of overheating • Modular cooling options: passive or active with fan or water cooling • Constant current regulation • Digitally selected illumination profiles • Modulation up to 50 kHz • Light colors blue (45 nm), red (625 nm), IR (855 nm), and white (approx. 6500K). • High power COB-LEDs, Chip-on-Board Technology • Useful LED life-time of up to 50 000 hours • Collimated or focussed light output • Irradiance >700 W/m2 • Lengths 300–3 000 mm, customized versions are available • Aluminium profile housing with FPM sealing • Optimum thermal management Shading Correction of the illumination profile T1 100 % Wood Metal Paper 0% T1 T2 Depending on the object under test, one of the predefined illumination profiles is activated MTD-LED illumination homogenity MTD LED CP MTD LED CP 300-R 256 Intensity (%) 256 192 128 64 192 F-Stop: Exposure time: Resolution: Mode: 128 64 5.6 11.2 μs 5 pixel/mm Transmitted 0 0 0 1024 constant 2048 3072 4096 0 256 512 768 1024 1280 1536 1792 2048 Pixel parabolic illumination profile Software interface MTD-LED dimensions Up to 16 different profiles can be implemented permanently in the LED line light. Each profile is adustable in segments of 20 mm length. The control range for each segment is 4 to 100% of the maximal intensity. A control program provided by MTD is used for the definition of the intensity profiles. A DLL library for user-programmed software is available. 19 44 Beleucht_ZK.indd • Page 46 Intensity (%) T3 119 46 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • www.SuKHamburg.com Application Fluorescent Lamp Module MTD-LIGHT Lengths up to 2300 mm Optional lens lights Line scan camera using LED line illumination MTD-LIGHT line lights were specifically developed for use in conjunction with line scan cameras in the industrial environment. Using patented technology, they satisfy the highest demands in terms of light output, stability and enclosure sealing, making them ideally suited for all line scan camera applications in process control and quality assurance. Components for industrial optical inspection 2 MTD-LIGHT line illumination The illumination series MTD-LIGHT STD Standard MTD-LIGHT EL Extra Long MTD-LIGHT VHO Very High Output MTD-LIGHT LENS Lens MTD-LIGHT POL Polarization Filter MTD-LIGHT UV UV MTD-LIGHT COL Colored provides a range of optimal illumination conditions enabling MTD-LIGHT systems to be used in diverse measurement and monitoring applications. Applications • Back-light and front-light for web inspection systems • Line light in-line scan camera applications • Photo-elastic analyses • Contrasting illumination • Fluorescence illumination • Quality control in metal, paper, glass, wood and textile industries Features • Compact aluminium enclosure with IP 52 rating (Patent: 102 19 339) • Lighting lengths up to 2300 mm • Aperture fluorescent tubes • Easy lamp-changing accessibility from the front • Electronic HF ballasts • On/off switch • Integrated cylinder lens (MTD-LIGHT LENS) • Linear polarization filter (45°) (MTD-LIGHT POL) • Black-light tubes with a cut-off (MTD-LIGHT UV) • Colored tubes for contrast enhancement (MTD-LIGHT COL) Interference suppression • All MTD-LIGHT devices are fitted with HF electronic suppression • Suppression devices with electronic filters have been specially developed to ensure flicker-free illumination • Extended range input and the ability to dim the light source are available options to support and optimize the most demanding of image processing systems Intensity [%] MTD-LIGHT illumination characteristics 1 Figure 2: Universal scanning system for conveyor belt inspection of geometry, position, counting and completeness evaluations. 1 MTD-LED ST300/50W, line length 300 mm, performance 50 W 2 Line camera system applications from Schäfter+Kirchhoff Fluorescent Lamps Linear Excimer light system The LINEX® lamp system from OSRAM is distinguished by its high efficiency and long service life, of up to 10 000 hours, with a luminance up to 80 000 Lux. An integrated internal reflector creates light emission at an angle of 75° that is free from jitter because of the pulsed DC mode with an operating frequency >80 KHz. The luminance is 250% of that obtained from a conventional fluorescent lamp operated in a sinusoidal AC mode, with full luminance being reached in less than 100 milliseconds. The spectrum of the xenon-filled light source corresponds to a color temperature of 5400K, equivalent to normal daylight, and it remains constant over the entire service life of the lamp. Illumination area distance [mm] Nanometer MTD-LIGHT dimensions LED-Illumination_ZK.indd • Page 47 Table 1 OSRAM LINEX® Linear Excimer Lamp System c Development and production: MTD GmbH, 82449 Uffing, Germany o o www.mtd-gmbh.de 11-2014 E Kieler Str. 212, 22525 Hamburg, Germany • Tel: +49 40 85 39 97-0 • Fax: +49 40 85 39 97-79 • [email protected] • 47 www.SuKHamburg.com
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