Title:
LIGHT DETECTION APPARATUS
Document Type and Number:
Japanese Patent JP2930877
Kind Code:
B2
Abstract:
PURPOSE: To provide a light detection apparatus which is positioned easily and which is attached or removed easily.
CONSTITUTION: A sensor part, for rough detection, which roughly detects the position of the sun and a sensor part 2, for fine detection, which detects the position of the sun with high accuracy are provided. In the sensor part 2 for fine detection, plates 87, 162 and photosensors 88a to 88d are housed. An opening part which has a taper face 160a is formed on the surface of the plate 87, and light from the outside is incident on the photosensors 88a to 88d from the opening part. The photosensors 88a to 88d are pressed toward the plate 162 via a plate 168 which uses an elastic member such as a sponge or the like. A coupler 86 is fixed to the plate 87 by a screw 163. A light-shielding part 70 is fixed to the tip of the coupler 86.
Inventors:
IWANAGA EIJI
SHIBUYA MAMORU
SHIBUYA MAMORU
Application Number:
JP20782794A
Publication Date:
August 09, 1999
Filing Date:
August 31, 1994
Export Citation:
Assignee:
RIZUMU TOKEI KOGYO KK
International Classes:
G01C1/00; G01J1/04; G02B7/00; G05D3/00; G05D3/12; (IPC1-7): G01C1/00; G01J1/04; G02B7/00; G05D3/00; G05D3/12
Domestic Patent References:
| JP63298010A | ||||
| JP62254005A | ||||
| JP6283148U |
Attorney, Agent or Firm:
Takahisa Sato