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          Lenses (for Machine Vision)

          CA-L series

          High Resolution, Low Distortion Lens

          CA-LHR Series

          Special optical design and construction

          The CA-LHR Series provides a resolving power of 200 cycles/mm at the centre of the lens and 140 cycles/mm on the periphery of the lens, which is twice or higher the performance of conventional high-resolution lenses. This makes it possible to obtain high-contrast images and perform stable inspections of the dimensions and appearance of targets.

          Minimum working distance

          By using special low-scattering glass, we have achieved a working distance of 0.1 m for all models. This makes it possible to use the lens to the extent of its capabilities over a wide range without needing a close-up ring.

          Specifications

          High Resolution, Low Distortion Lens

          Model

          CA-LHR5

          CA-LHR8

          CA-LHR12

          CA-LHR16

          CA-LHR25

          CA-LHR35

          CA-LHR50

          Focal point

          5 mm

          8.5 mm

          12 mm

          16 mm

          25 mm

          35 mm

          50 mm

          F-stop range (aperture)

          F1.8 to F16

          F1.8 to F11

          F1.8 to F16

          F2.0 to F16

          F2.8 to F16

          Minimum WD

          0.1 m

          Mount

          C-mount

          Filter size

          46.0 mm P0.75

          34.0 mm P0.5

          25.5 mm P0.5

          34.0 mm P0.5

          30.5 mm P0.5

          Compatible image/CCD size

          2/3"

          TV distortion

          -0.33 % (-0.11 %)*1

          0.31 % (-0.02 %)*1

          -0.12 % (0.01 %)*1

          -0.20 % (-0.11 %)*1

          -0.09 % (-0.04 %)*1

          0.05 % (-0.01 %)*1

          -0.02 % (0.02 %)*1

          Resolving power

          200 cycles/mm at centre, 140 cycles/mm on periphery

          Ambient temperature/humidity range

          0 to +50 °C, 35 to 80 % RH (No condensation)

          Lens coating

          WIDE, BAND MULTICOATING

          Weight

          Approx. 120 g

          Approx. 115 g

          Approx. 105 g

          Approx. 90 g

          Approx. 95 g

          Approx. 160 g

          Approx. 170 g

          *1 Indicates specification for compatible image/CCD size. Value in parenthesis applies to 1/3" image/CCD size.

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