Light-receiving apparatus having a position detectable portion o

Details Light-receiving apparatus having a position detectable portion o Light-receiving apparatus having a position detectable portion o

1997-09-16

1999-03-16

Le, Que T.

Radiant energy

Photocells; circuits and apparatus

Housings

257433, H01J 502

Patent

active

058833862

ABSTRACT:
A light-receiving apparatus comprises a light-receiving device positioned relative to an external component with increased accuracy. A sealing frame is mounted on a printed circuit board. One corner of this sealing frame is detectable by image processing. The position inside of the sealing frame at which the light-receiving device should be mounted is determined from the detected position of the corner of the sealing frame. A sealing material is injected inside the sealing frame and cured, thereby sealing the light-receiving device. Pins of the external components are inserted into holes or cutouts in the sealing frame and made stationary when the light-receiving device is mounted to the external component. The mounting of the light-receiving device inside the sealing frame is based on the sealing frame, and the mounting of the apparatus to the external part is based on the sealing frame. Therefore, the light-receiving device can be mounted relative to the external part with high accuracy.

REFERENCES:
patent: 5783815 (1998-07-01), Ikeda

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