Lenses (for Machine Vision)CA-L series

CA-LMHE20

Supporting 4/3" Telecentric Macro Lens x2

SPECIFICATIONS

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Model

CA-LMHE20*1

Optical magnification

×2.0

WD (at reference magnification)

80.6 mm*2

Compatible image/CCD size

4/3" (ø23 mm)

Field of view

8.9 × 7.1 mm
(at reference magnification)

F-stop range (aperture)

5.0 to 72

Resolution

1.7 µm*3

Resolving power

Centre/periphery: 120 cycles/mm

TV distortion

0.10%

Depth of field

0.320 mm*4

Mount

C-mount

Environmental
resistance

Ambient temperature

0 to 50°C

Relative humidity

35 to 80% RH (No condensation)

Weight

Approx. 830 g

*1 Depending on factors such as the installation orientation and the vibrations of the environment, consider reinforcing the installation such as by implementing countermeasures to hold the lens in place. For information on the locations to hold the lens in place, see the installation examples.
The above values were calculated according to optical design values. Actual values for individual lenses will differ according to precision of assembly.
*2 WD indicates the distance from the tip of the lens to the workpiece. Changing the magnification changes this distance.
*3 The smallest resolvable feature able to be detected under 550 nm wavelength light.
*4 The depth of field is a theoretical value calculated with an F-stop of 16 and a circle of least confusion of 40 µm. This varies depending on the F-stop.

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