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

×3.45 to ×4.41

Max. compatible image/CCD size

2/3"

Field of view

2/3":
Low magnification 2.4 × 2.1 mm, High magnification 1.9 × 1.6 mm
1/1.8":
Low magnification 2.0 × 1.5 mm, High magnification 1.6 × 1.2 mm

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, High magnification: 65.9 mm*2

TV distortion

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

Depth of field

Low magnification: 0.108 mm, High magnification: 0.066 mm*3

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

1 µm/pixcel*4

Mount

C-mount

Resolution

1.68 µm*5

Environmental
resistance

Ambient temperature

0 to 50°C

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.
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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