To focus light along a straight line instead of a point, as spherical lens would. Useful for looking at full paths of rays on paper, such as pencils of light emerging from the slits of a comb illuminated by a small lamp.
Made of optically true glass with polished faces and ground edges. Surfaces follow the sides of cylinder(s). Beveled edges.
Dimensions: (h x w), 50mm x 45mm Power 7D (focal length ~143mm)
Power 14D (focal length ~72mm)
Dimensions: (h x w), 50mm x 50mm Power 10D (focal length 100mm)
Power 17D (focal length ~59mm)
Note: Please mention the Cat. No. of your required product in the Message field of Request a quote Form.