Gradient index lens component and image pickup apparatus using t

Optical: systems and elements – Lens – With graded refractive index

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359661, 359719, 359738, 369112, G02B 900, G11B 700

Patent

active

061045454

ABSTRACT:
A gradient index lens component composed of a single radial type gradient index lens element which has planar surfaces on both side and a positive refractive power and comprising an aperture stop which is disposed in the vicinity of an object side surface of the radial gradient index lens element for restricting a light bundle. And an image pickup apparatus composed by integrating the gradient index lens component with an image pickup device.

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"Design of a Gradient-Index Photographic Objective" Atkinson et al., Applied Optics, vol. 21, No. 26, Mar. 15, 1982.
Radial Gradient-Index Lenses with Zero Petzval Aberration -Moore et al., Applied Optics, vol. 19, No. 7, Apr. 1, 1980.

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