Title:
【発明の名称】グレーデッドインデックス光学要素および反射屈折光学系
Document Type and Number:
Japanese Patent JP2636501
Kind Code:
B2
Abstract:
The present invention relates to an optical element and catadioptric optical systems using the optical element. The optical element has a spherical surface with a reflective layer formed on at least a portion of the surface, and is formed of a radiant energy transmitting material having a radial gradient index of refraction. The catadioptric optical systems include at least two optical elements at least one of which is refractive, and at least one of which has a gradient index therein. One optical system includes first and second optical elements disposed sequentially along a longitudinal axis of the system. The second optical element is the optical element with the gradient index. The first optical element is formed of a homogeneous light transmitting material and includes a spherical surface, and a reflective layer formed on a central portion of one of the spherical surface.
Inventors:
HANBUREN DEEUITSUDO PII
Application Number:
JP50315492A
Publication Date:
July 30, 1997
Filing Date:
December 06, 1991
Export Citation:
Assignee:
IISUTOMAN KODATSUKU CO
International Classes:
G02B3/00; G02B17/08; G02B9/00; (IPC1-7): G02B17/08; G02B9/00
Domestic Patent References:
| JP56121012A | ||||
| JP615221A |
Attorney, Agent or Firm:
Kyozo Yuasa (6 people outside)