Gradient index lens component and image pickup apparatus using t

Details Gradient index lens component and image pickup apparatus using t Gradient index lens component and image pickup apparatus using t

1996-08-02

1999-02-09

Pham, Hoa Q.

Optical: systems and elements

Lens

With graded refractive index

359652, G02B 1514

Patent

active

058702296

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.

REFERENCES:
patent: 4976521 (1990-12-01), Ishii et al.
patent: 4998807 (1991-03-01), Uzawa et al.
patent: 5059005 (1991-10-01), Kawano
patent: 5117309 (1992-05-01), Aoki

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