KEYENCE CA-LMHR40 Ultra high resolution Telecentric Macro Lens x4

Optical magnification

x3.45 to x4.41

Max. compatible image/CCD size

2/3"

Field of view

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

Mount

C-mount

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

1 µm/pixcel^*4

Resolution

1.68 µm^*5

Environmental resistance

Ambient temperature

0 to +50 °C

Relative humidity

80%RH 以下（結露しないこと）

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.