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          Lenses (for Machine Vision)

          CA-L series

          Lens Filters

          CA-LF Series

          Sharp cut filter (R60)

          Without sharp cut filter

          The fluorescent light is reflected by the metal surface.

          With sharp cut filter

          Ambient light is suppressed, which enables stable imaging.

          Without sharp cut filter

          The fluorescent light is refracted inside of the bottle, which makes inspections of the bottle opening difficult.

          With sharp cut filter

          The influence of the fluorescent light can be reduced.

          Sharp cut filters only allow light of a wavelength longer than a certain wavelength limit to pass. Using these filters in combination with red LED lights makes it possible to capture images in which the ambient light is suppressed.

          Polarizing filter

          Without polarizing filter

          There is an imprint of the ring light.

          With polarizing filter

          The light imprint is reduced.

          Polarization principle

          Light (1) is polarized with polarization filter A so only horizontal light (2) is transmitted to the target. Because polarization filter B is set to accept vertical light only, the specular light (3) reflected from the film surface is rejected. However, the diffuse reflected light (4) from the target has a vertical component (5) that is allowed to pass through B to the camera.

          Protective filter Blue cut filter

          Protective filter

          • The protective filter ensures a long service life of the lens by preventing damage during lens maintenance.
          • During lens maintenance, all that needs to be done is replace the protective filter, which can be washed with water.
          • The protective filter protects the lens surface from damage caused by processed chips.
          • The protective filter eliminates the time and effort that is required to perform maintenance on the lens when oil mist or dust affixes to its surface.

          Blue cut filter

          The blue cut filter blocks the wavelength of blue LED light. Use this filter in combination with the wavelength conversion sheet to cut the excess blue LED light components that shine on the workpiece.

          Lineup

          Optional parts

          Lens close-up ring set

          The focal range of the lens can be changed by using close-up rings between the camera and the lens. For the thickness to use, see the FOV chart for each lens.

          The set contains rings with five different thicknesses: 0.5 mm 0.02", 1 mm 0.04", 5 mm 0.20", 10 mm 0.39", and 22 mm 0.87".

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