JPS5456388A - Photo sensor - Google Patents
Photo sensorInfo
- Publication number
- JPS5456388A JPS5456388A JP12236077A JP12236077A JPS5456388A JP S5456388 A JPS5456388 A JP S5456388A JP 12236077 A JP12236077 A JP 12236077A JP 12236077 A JP12236077 A JP 12236077A JP S5456388 A JPS5456388 A JP S5456388A
- Authority
- JP
- Japan
- Prior art keywords
- thru
- light incident
- disposed
- photo
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Light Receiving Elements (AREA)
Abstract
PURPOSE: To compensate sensitivity differences without depending upon electrical circuit means by so providing filters as to compensate the sensitivity differences amogh light receiving parts within the light incident paths to a plurality of mutually parallel disposed light receiving parts.
CONSTITUTION: Light incident ports 3a, 3b, 3c are formed at the front of a light shield case 1 which forms plural mutually optically isolated light incident chambers 2a, 2b, 2c, and photo detectors 4a, 4b, 4c consisting of, e.g., photo diodes, photo transistors or CdSs are disposed near the rear face of the respective chambers. Filters 5a, 5b, 5c consisting of colored glass, synthetic resins or cellophane paper are disposed between the respective elements 4a thru 4c and incident ports 3a thru 3c, by which the differences in the sensitivities of the respective elements 4a thru 4c are adjusted and the electric ouputs of an equal magnitude may thus be obtained in lead wires 7a, 7b, 7c
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12236077A JPS5456388A (en) | 1977-10-14 | 1977-10-14 | Photo sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12236077A JPS5456388A (en) | 1977-10-14 | 1977-10-14 | Photo sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5456388A true JPS5456388A (en) | 1979-05-07 |
Family
ID=14833957
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12236077A Pending JPS5456388A (en) | 1977-10-14 | 1977-10-14 | Photo sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5456388A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55161768A (en) * | 1979-06-05 | 1980-12-16 | Orenstein & Koppel Ag | Escalator start*stop device |
JPS583049U (en) * | 1981-06-27 | 1983-01-10 | オムロン株式会社 | photo sensor |
-
1977
- 1977-10-14 JP JP12236077A patent/JPS5456388A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55161768A (en) * | 1979-06-05 | 1980-12-16 | Orenstein & Koppel Ag | Escalator start*stop device |
JPS583049U (en) * | 1981-06-27 | 1983-01-10 | オムロン株式会社 | photo sensor |
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