Lenses (for Machine Vision)CA-L series

CA-LM4

Lens

SPECIFICATIONS

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Model

CA-LM4*1

Type

Standard

Optical magnification (reference magnification)

×4

Magnification range

Approx. ±5% relative to reference axis

WD (at reference magnification)

70.3 mm*2

Compatible image/CCD size

1/2"

Field of view (at reference magnification)

1/3"

0.9 × 1.2 mm

1/2"

1.2 × 1.6 mm

2/3"

-

F-stop range (aperture)

26.5

Depth of field

172 µm*3

Max. TV distortion

-0.22%

Resolution

4.5 µm*4

Mount

C-mount

Ambient temperature/humidity range

0 to 50°C, 80% RH (No condensation)

Weight

Approx. 58 g

*1 The above values are all calculated according to optical design values. Actual values for individual lenses will differ according to precision of assembly.
*2 Working distance indicates a working distance of each lens at reference magnification. Working distance will vary depending on magnification adjustment. (Excluding CA-LM1/LMA1)
*3 The indicated depth of field is a theoretical value that assumes 1/2" or 2/3" Image/CCD size and a horizontal resolution of 320 TV lines. (Circle of least confusion is 40 µm in the image)
*4 The smallest resolvable feature able to be detected under 550 nm wavelength light.

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