Title:
SUPPORTING STRUCTURE FOR LENS
Document Type and Number:
Japanese Patent JP3238610
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a supporting structure for a lens which is simple and is designed to save space by forming an engaging groove at the periphery part of the lens and providing a lens frame with an engaging pawl engaged with the engaging groove.
SOLUTION: A combined lens is supported by a 3rd lens group supporting frame 50 in a state where the tip parts of the respective engaging pawls 50d are engaged with an annular inclined end face formed on the periphery of the rear end of the 10th lens L10 and constituting a part of the inner surface of a peripheral direction annular groove 60. Namely, the 10th lens L10 is directly supported by the frame 50, and the 11th lens group L11 is indirectly supported by the frame 50 through the lens L10. Therefore, the lens L10 is positioned inside the frame 50 and the lens L11 is projecting to the outside of the frame 50. The engaging supporting part of the frame 50 is composed of an optical axis direction supporting part and the engaging pawl 50d. By this supporting structure, the frame 50 can be miniaturized.
More Like This:
| JPH06320793 | IMAGE FORMING DEVICE |
| JPH09297253 | COUPLING STRUCTURE FOR LENS HOLDING LENS FRAME |
Inventors:
Norio Sato
Application Number:
JP20487595A
Publication Date:
December 17, 2001
Filing Date:
August 10, 1995
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
G02B7/02; (IPC1-7): G02B7/02
Domestic Patent References:
| JP6170822U | ||||
| JP6170823U | ||||
| JP5867305U | ||||
| JP5772403U |
Attorney, Agent or Firm:
Kunio Miura