Lenses (for Machine Vision)CA-L series

CA-LMHR04

Ultra high resolution Telecentric Macro Lens

SPECIFICATIONS

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Model

CA-LMHR04*1

Optical magnification

x0.35 to x0.44

Max. compatible image/CCD size

2/3"

Field of view

2/3":
Low magnification 24.0 × 20.2 mm, High magnification 19.1 × 16.1 mm
1/1.8":
Low magnification 20.1 × 15.1 mm, High magnification 16.0 × 12.0 mm

F-stop range (aperture)

Low magnification: 4.4 to 18, High magnification: 5.5 to 22

Resolving power

Center/periphery: 120 cycles/mm

WD

Low magnification: 112.7 mm, High magnification: 112.7 mm*2

TV distortion

Low magnification: 0.02%, High magnification: 0.01%

Depth of field

Low magnification: 10.449 mm, High magnification: 6.612 mm*3

Pixel resolution
(US 3.5 µm: low magnification to US 4.4 µm: high magnification)

10 µm/pixcel*4

Mount

C-mount

Resolution

8.39 µm*5

Environmental
resistance

Ambient temperature

0 to 50°C

Relative humidity

35 to 80% RH (No condensation)

Weight

Approx. 400 g

*1 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 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.
*4 The pixel resolution is the field of view per pixel. This varies depending on the camera used.
US = Unit cell size (size of 1 pixel)
The CA-LMHR Series can also be used at pixel resolutions other than those listed here depending on the optical magnification.
*5 The smallest resolvable feature able to be detected under 550 nm wavelength light.

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