Product information "67.2 mm WD C-Mount Telecentric Lens Opto Engineering TC12024"
Bi-telecentric lens for 1/2″ detectors, magnification 0.255 x, C-mount
TC series bi-telecentric lensesrepresent the key component of any measurement system powered by machine vision: these lenses can truly take advantage of high-resolution detectors such as 5 MP - 2/3″, acquiring images with exceptional fidelity and precision.
Magnification
(×)
0.255
Image Circle Ø
(mm)
8.0
Object Field of View (8)
with 1/3″-Detector (4.8 x 3.6 mm)
(mm × mm)
18.8 x 14.1
with 1/2.5"-Detector (5.70 x 4.28 mm)
(mm × mm)
22.4 x 16.8
with 1/2″-Detector (6.4 x 4.8 mm)
(mm × mm)
25.1 x 18.8
with 1/1.8"-Detector (7.13 x 5.37 mm) (7)
(mm × mm)
28.0 x 21.1
with 2/3″ - 5 MP-Detector (8.45 x 7.07 mm)
(mm × mm)
Ø = 27.7
Optical Specifications
Working Distance (1)
(mm)
67.2
wF/# (2)
8
Telecentricity typical (max) (3)
(deg)
< 0.08 (0.10)
Distortion typical (max) (4)
(%)
< 0.04 (0.08)
Field Depth (5)
(mm)
10
CTF @ 70 lp/mm
(%)
> 45
Dimensions
Mount
C
Phase Adjustment (9)
-
-
Length (6)
(mm)
117.8
Diameter
(mm)
44
Weigth
(g)
370
Notes
Working distance: distance between the front end of the mechanics and the object. Set this distance within +/- 3% of the nominal value for maximum resolution and minimum distortion.
Working F-number (wF/#): the real F-number of a lens when used as a macro. Lenses with smaller apertures can be supplied on request.
Maximum slope of chief rays inside the lens: when converted to millirad, it gives the maximum measurement error for any millimeter of object displacement. Typical (average production) values and maximum (guaranteed) values are listed.
Percent deviation of the real image compared to an ideal, undistorted image: typical (average production) values and maximum (guaranteed) values are listed.
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. Pixel size used for calculation is 5.5 μm.
Measured from the front end of the mechanics to the camera flange.
With 1/1.8″ (9 mm diagonal) detectors, the FOV of TC12yyy lenses may show some vignetting at the image corners, as these lenses are optimized for 1/2" detectors (8 mm diagonal).
For the fields with the indication "Ø =", the image of a circular object of such diameter is fully inscribed into the detector.
Indicates the availability of an integrated camera phase adjustment feature. If missing, it can be supplied upon request (except for TC23004, TC23007,TC23009, TC23012).
Lens type:
telecentric
Working Distance:
67.2 mm
Depth of Field:
10 mm
Sensor:
1/1,8, 1/2, 1/2,5, 1/3
Lens-Mount:
C-Mount
Resolution:
5 Megapixel
Aperture:
8.0, Fix
F-theta Distortion (-%):
< 0.04
Image-Circle:
8
Coaxial:
No
Magnification:
0.255
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