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 sensor size

2/3"

Field of view

2/3": Low magnification 24.0 x 20.2 mm 0.94" x 0.80", High magnification 19.1 x 16.1 mm 0.75" x 0.63"
1/1.8": Low magnification 20.1 x 15.1 mm 0.79" x 0.59", High magnification 16.0 x 12.0 mm 0.63" x 0.47"

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 4.44", High magnification: 112.7 mm 4.44"*2

TV distortion

Low magnification: 0.02 %, High magnification: 0.01 %

Depth-of-field

Low magnification: 10.449 mm 0.41", High magnification: 6.612 mm 0.26"*3

Pixel resolution
(US 3.5 µm 0.14 Mil: low magnification to US 4.4 µm 0.17 Mil: high magnification)

10 µm 0.39 Mil/pixel*4

Mount

C-mount

Resolution

8.39 µm 0.33 Mil*5

Environmental resistance

Ambient temperature

0 to +50 °C 32 to 122 °F

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 1.57 Mil.
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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