Title:
COMPLEX TYPE OPTICAL ELEMENT AND ITS MANUFACTURE
Document Type and Number:
Japanese Patent JP3681812
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a complex type optical element in which a resin is prevented from protruding outside a backing and the deterioration in optical functions such as ghosts and flares is eliminated.
SOLUTION: In a complex type optical element 6 in which a resin layer 3 of an energy curing resin is formed on the surface of the backing 2 of the optical element, in the backing, on the periphery of the optically effective diameter of the surface 2a which forms the resin layer 3, lack parts 2b, 2c which subside from a plane perpendicular to an optical axis or a concentric circle are formed with the concentric circle which is slightly larger than the optically effective diameter made a starting point in the direction of the reduction of the volume of the backing 2, and light-barrier treatment is carried out on the plane or on the surface of the lack parts 2b, 2c.
Inventors:
Satoshi Teramoto
Application Number:
JP8291996A
Publication Date:
August 10, 2005
Filing Date:
April 04, 1996
Export Citation:
Assignee:
Olympus Endo Technology America Inc.
International Classes:
G02B3/00; B29D11/00; B29K101/10; (IPC1-7): B29D11/00; G02B3/00
Domestic Patent References:
| JP7072309A | ||||
| JP7314568A | ||||
| JP5309668A |
Attorney, Agent or Firm:
Takeji Nara