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          Lenses (for Machine Vision)CA-L series

          CA-LMHE20

          Supporting 4/3" Telecentric Macro Lens x2

          SPECIFICATIONS

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          Model

          CA-LMHE20*1

          Optical magnification

          x2.0

          WD (at reference magnification)

          80.6 mm 3.17"*2

          Compatible image sensor size

          4/3" (ø23 mm ø0.91")

          Field of view

          8.9 x 7.1 mm 0.35" x 0.28" (at reference magnification)

          F-stop range (aperture)

          5.0 to 72

          Resolution

          1.7 µm 0.07 Mil*3

          Resolving power

          Center/periphery: 120 cycles/mm

          TV distortion

          0.10 %

          Depth-of-field

          0.320 mm 0.01"*4

          Mount

          C-mount

          Environmental resistance

          Ambient temperature

          0 to +50 °C 32 to 122 °F

          Relative humidity

          35 to 80 % RH (No condensation)

          Weight

          Approx. 830 g

          *1 Depending on factors such as the installation orientation and the vibrations of the environment, consider reinforcing the installation such as by implementing countermeasures to hold the lens in place. For information on the locations to hold the lens in place, see the installation examples.
          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 smallest resolvable feature able to be detected under 550 nm wavelength light.
          *4 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.

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