Optical imaging system

Details Optical imaging system Optical imaging system

G - Physics

02

B

G02B 27/00 (2006.01) G02B 3/00 (2006.01)

Patent

CA 2297234

The invention presents an optical imaging system, which eliminates portions of an image with large image curvature, improving the resolving power. A plurality of columnar rod lenses 1 with a refractive index distribution in the radial direction is arranged in one or more rows in a rod lens array 2 for one-to-one imaging with their optical axes la in parallel. A manuscript plane 3 and an image plane 4 are arranged on the two sides of the rod lens array 2, constituting an optical imaging system. Rectangular aperture stops 5 are provided on both faces of the rod lenses 1, so that they cover both end portions of the rod lenses 1 in the Y-axis direction (longitudinal direction of the rod lens array 2).

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