Telecentric lenses and optical systems for imaging, sensors, metrology, lighting and lasers.
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TCDP SERIES: DOUBLE MAGNIFICATION BI-TELECENTRIC LENSES

TCDP Series are double port bi-telecentric lenses supporting two different cameras to measure objects with different magnification factors. 2X and 4X options are available for imaging one half or one fourth of the full FOV: this can be simply accomplished by switching from one camera to the other with your software application.
Since this technique doesn't require any moving mechanism, the magnification repeatability is totally assured, thus providing exceptional measurement accuracy with no need of re-calibrating after zooming. TCDP Series are suitable for any camera up to 2/3" format, they can be mounted on CMHO clamping mechanics and fit Collimated Illuminators and Ring light designed for standard TC Series.

KEY ADVANTAGES:

  • Double FOV and magnification, for tuning accuracy with flexibility
  • No need of re-calibrating, since the two magnifications are fixed
  • No change in image centering when switching to another FOV

 

A TCDP4X144 imaging a screw with two different cameras Full FOV image with lens' lower magnification 4X magnified image of the object central part
     
A TCDP2X096 imaging an electronic board with two different cameras Full FOV image with lens' lower magnification 2X magnified image of the object central part

 

Focusing and adjusting the phase of the two cameras is rather simple. First of all, place a reference object at the nominal lens' working distance. Add or subtract spacers to the C-mount until best focus is achieved, then rotate the camera phase by untightening the C-mount set screws. Once the right phase is found, tighten the set screws and lock the camera phase. Do the same for the secondary port: find the right number of spacers for achieving the best image resolution and rotate the camera mount to obtain the best angular alignment of the image.

 

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detector type optical specification dimensions

Part
Number
Magn.

(x)		 1/4"
w x h
4,8x3,6
(mmxmm)		 1/3"
w x h
4,8x3,6
(mmxmm)		 1/2"
w x h
6,4x4,8
(mmxmm)		 1/1.8"
w x h
6,4x4,8
(mmxmm)		 2/3"
w x h
8,8x6,6
(mmxmm)
W.D.

(mm)
(1)
F/N


(2)
Telecentricity

(deg)
(3)
Distortion

(%)
Field Depth
(mm)
(4)
CTF @ 70 lp/mm
%
Mount
Length

(mm)
Diam.

(mm)		 Datasheets & Drawings Get a quotation
 
object field of view (mm x mm)
TCDP 2X 096 0,093 38,5 x 28,9 51,4 x 38,5 68,5 x 51,4 76,3 x 57,5 94,2 x 70,7 279,6 8 < 0,1 < 0,08 77 > 30 C 337 143 TCDP2X096
0,186 19,3 x 14,5 25,7 x 19,3 34,3 x 25,7 38,2 x 28,8 47,1 x 35,4 ... 12 < 0,08 < 0,05 29 > 40 ... ... (175)
TCDP 4X 096 0,093 38,5 x 28,9 51,4 x 38,5 68,5 x 51,4 76,3 x 57,5 94,2 x 70,7 279,6 8 < 0,1 <0,08 77 > 30 C 337 143 TCDP4X096
0,372 9,6 x 7,2 12,9 x 9,6 17,1 x 12,9 19,1 x 14,4 23,6 x 17,7 ... 12 < 0,08 < 0,07 7 > 40 ... ... (264)
TCDP 2X 120 0,072 50,3 x 37,7 67,0 x 50,3 89,4 x 67,0 99,5 x 75,0 122,9 x 92,2 336,5 8 < 0,1 < 0,1 131 > 30 C 423 180 TCDP2X120
0,144 25,2 x 18,9 33,5 x 25,2 44,7 x 33,5 49,8 x 37,5 61,5 x 46,1 ... 12 < 0,08 < 0,05 49 > 35 ... ... (194)
TCDP 4X 120 0,072 50,3 x 37,7 67,0 x 50,3 89,4 x 67,0 99,5 x 75,0 122,9 x 92,2 336,5 8 < 0,1 < 0,1 131 > 30 C 423 180 TCDP4X120
0,288 12,6 x 9,4 16,8 x 12,6 22,4 x 16,8 24,9 x 18,8 30,7 x 23,1 ... 12 < 0,08 < 0,05 12 > 35 ... ... (282)
TCDP 2X 144 0,061 58,9 x 44,2 78,6 x 58,9 104,8 x 78,6 116,7 x 87,9 144,0 x 108,0 398 8 < 0,1 < 0,05 180 > 30 C 483 200 TCDP2X144
0,122 29,5 x 22,1 39,3 x 29,5 52,4 x 39,3 58,4 x 44,0 72,0 x 54,0 ... 12 < 0,08 < 0,04 68 > 35 ... ... (204)
TCDP 4X 144 0,061 58,9 x 44,2 78,6 x 58,9 104,8 x 78,6 116,7 x 87,9 144,0 x 108,0 398 8 < 0,1 < 0,05 180 > 30 C 483 200 TCDP4X144
0,244 14,7 x 11,1 19,7 x 14,7 26,2 x 19,7 29,2 x 22,0 36,0 x 27,0 ... 12 < 0,08 < 0,05 17 > 35 ... ... (292)
TCDP 2X 192 0,046 78,7 x 59,0 104,9 x 78,7 139,8 x 104,9 155,7 x 117,3 192,3 x 144,2 531 8 < 0,1 < 0,07 320 > 30 C 623 260 TCDP2X192
0,092 39,4 x 29,5 52,5 x 39,4 69,9 x 52,5 77,9 x 58,7 96,2 x 72,1 ... 12 < 0,08 < 0,03 120 > 35 ... ...
TCDP 4X 192 0,046 78,7 x 59,0 104,9 x 78,7 139,8 x 104,9 155,7 x 117,3 192,3 x 144,2 531 8 < 0,1 < 0,07 320 > 30 C 623 260 TCDP4X192
0,184 19,7 x 14,8 26,2 x 19,7 35,0 x 26,2 38,9 x 29,3 48,1 x 36,1 ... 12 < 0,08 < 0,05 30 > 35 ... ...
TCDP 2X 240 0,037 98,1 x 73,6 130,8 x 98,1 174,4 x 130,8 194,3 x 146,3 239,8 x 179,9 500 8 < 0,1 < 0,06 498 > 30 C 776 322 TCDP2X240
0,074 49,1 x 36,8 65,4 x 49,1 87,2 x 65,4 97,2 x 73,2 119,9 x 90,0 ... 12 < 0,08 <0,15 187 > 45 ... ...
TCDP 4X 240 0,037 98,1 x 73,6 130,8 x 98,1 174,4 x 130,8 194,3 x 146,3 239,8 x 179,9 500 8 < 0,1 < 0,06 498 > 30 C 776 322 TCDP4X240
0,148 24,5 x 18,4 32,7 x 24,5 43,6 x 32,7 48,6 x 36,6 60,0 x 45,0 ... 12 < 0,08 < 0,08 47 > 45 ... ...

Notes
(1)  Working Distance: distance bewteen the front lens and the object. Set this distance within +/- 3% of the nominal value for maximum resolution and minimum distortion
(2)  Working F-number: the real F-number of 5 a lens when used as a macro. Lenses with smaller apertures can be supplied on request
(3)  Maximum slope of principal rays inside the lens: when converted to millirad, it gives the maximum measurement error for any millimiter of object displacement
(4)  At the borders of the field depth the image can be still used for measurement but, to get a very sharp image, only half of the nominal field depth should be considered

 

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