JPS6474413A - Optical displacement detector - Google Patents
Optical displacement detectorInfo
- Publication number
- JPS6474413A JPS6474413A JP23343487A JP23343487A JPS6474413A JP S6474413 A JPS6474413 A JP S6474413A JP 23343487 A JP23343487 A JP 23343487A JP 23343487 A JP23343487 A JP 23343487A JP S6474413 A JPS6474413 A JP S6474413A
- Authority
- JP
- Japan
- Prior art keywords
- light
- emitting element
- light emitting
- main scale
- scale
- 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
- Optical Transform (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
PURPOSE:To reduce the manufacture cost and increase the degree of freedom of the designing and manufacture by constituting the reflection type optical displacement detector by fitting a light emitting element and a light receiving element to a lead frame. CONSTITUTION:A 1st member 18 where a main scale 16 consisting of an optical grating with constant pitch and a reference scale 20 consisting of an optical grating corresponding to the main scale 16 are provided, and the 2nd member is arranged relatively movably to the 1st member 18. A light-transmissive resin mold 32 wherein the lead frame 30 is molded integrally is provided on the opposite side from the 2nd member 22 and the light emitting element 26 and light emitting element 24 are fixed on the lead frame 30. Projection light from the light emitting element 26 is made into parallel light through a lens 34 and a reflecting mirror 28 and reaches the light receiving element 26 through the main scale 16 and reference scale 20. The light receiving element 26 detects variation of the input light based upon the repetition of an overlap between the main scale and reference scale by the relative displacement between the 1st and 2nd members 18 and 22 and detects the relative variation quantity between the 1st and 2nd members from the detection result.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23343487A JPS6474413A (en) | 1987-09-17 | 1987-09-17 | Optical displacement detector |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23343487A JPS6474413A (en) | 1987-09-17 | 1987-09-17 | Optical displacement detector |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6474413A true JPS6474413A (en) | 1989-03-20 |
Family
ID=16954979
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23343487A Pending JPS6474413A (en) | 1987-09-17 | 1987-09-17 | Optical displacement detector |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6474413A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1472712A2 (en) * | 2002-02-06 | 2004-11-03 | Gentex Corporation | Sensor configuration for substantial spacing from a small aperture |
US9870753B2 (en) | 2013-02-12 | 2018-01-16 | Gentex Corporation | Light sensor having partially opaque optic |
US9961746B2 (en) | 2013-02-12 | 2018-05-01 | Gentex Corporation | Light sensor |
-
1987
- 1987-09-17 JP JP23343487A patent/JPS6474413A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1472712A2 (en) * | 2002-02-06 | 2004-11-03 | Gentex Corporation | Sensor configuration for substantial spacing from a small aperture |
EP1472712A4 (en) * | 2002-02-06 | 2010-08-04 | Gentex Corp | Sensor configuration for substantial spacing from a small aperture |
US9870753B2 (en) | 2013-02-12 | 2018-01-16 | Gentex Corporation | Light sensor having partially opaque optic |
US9961746B2 (en) | 2013-02-12 | 2018-05-01 | Gentex Corporation | Light sensor |
US11017741B2 (en) | 2013-02-12 | 2021-05-25 | Gentex Corporation | Light sensor having partially opaque optic |
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