Lenses (for Machine Vision)CA-L series

CA-LMHR40

Ultra high resolution Telecentric Macro Lens x4

SPECIFICATIONS

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Model

CA-LMHR40*1

Optical magnification

x3.45 to x4.41

Max. compatible image sensor size

2/3"

Field of view

2/3": Low magnification 2.4 x 2.1 mm 0.09"x 0.08", High magnification 1.9 x 1.6 mm 0.07" x 0.06"
1/1.8": Low magnification 2.0 x 1.5 mm 0.08" x 0.06", High magnification 1.6 x 1.2 mm 0.06" x 0.05"

F-stop range (aperture)

Low magnification: 8.6 to 183, High magnification: 11 to 234

Resolving power

Center/periphery: 120 cycles/mm

WD

Low magnification: 65.9 mm 2.59", High magnification: 65.9 mm 2.59"*2

TV distortion

Low magnification: 0.015 %, High magnification: -0.002 %

Depth-of-field

Low magnification: 0.108 mm 0.004", High magnification: 0.066 mm 0.002"*3

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

1 µm 0.04 Mil/pixel*4

Mount

C-mount

Resolution

1.68 µm 0.07 Mil*5

Environmental resistance

Ambient temperature

0 to +50 °C 32 to 122 °F

Relative humidity

35 to 80 % RH (No condensation)

Weight

Approx. 650 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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