Title:
OUT LIGHT TRIANGLE-TYPE DISTANCE-MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3490141
Kind Code:
B2
Abstract:
PURPOSE: To improve a positional accuracy between components by directly attaching and securing a lens member having two optical lens parts to a photodetecting member.
CONSTITUTION: Lens barrel 1A, 1B are in the same shape. A lower hook part 10a and an upper hole part 11b are set at a left end of each lens barrel seen from inside of the lens barrel 1A, 1B. An AF lens member 2 includes two lens parts 5a, 5b having parallel optical axes each other and is held between the lens barrels 1A and 1B. Bottom parts 12a and 12b of the member 2 held between the lens barrels 1A and 1B are bonded by an adhesive to upper ends 13a and 13b of a sensor module 3, respectively. An optical sensor 14 for receiving a light from an object is built in the sensor module 3. Since the member 2 is directly securely bonded to the photodetecting member 3, it becomes unnecessary for the lens barrels 1A, 1B to support/fix the members 2 and 3. A positional accuracy between the lens parts 5a, 5b of the member 2 and the member 3 is accordingly improved.
Inventors:
Eiji Watanabe
Application Number:
JP12737294A
Publication Date:
January 26, 2004
Filing Date:
June 09, 1994
Export Citation:
Assignee:
FUJIFILM Micro Device Co., Ltd.
Fuji Photo Film Co., Ltd.
Fuji Photo Film Co., Ltd.
International Classes:
G01C3/06; G02B7/09; G02B7/30; G02B7/32; G03B13/36; (IPC1-7): G01C3/06; G02B7/30; G03B13/36
Domestic Patent References:
| JP5303032A | ||||
| JP5440663A | ||||
| JP3157602A | ||||
| JP5461522A | ||||
| JP239221U |
Attorney, Agent or Firm:
Keishiro Takahashi (1 person outside)