JPS5262448A - Lens surface monitoring device of photoelectric instrument - Google Patents
Lens surface monitoring device of photoelectric instrumentInfo
- Publication number
- JPS5262448A JPS5262448A JP50138853A JP13885375A JPS5262448A JP S5262448 A JPS5262448 A JP S5262448A JP 50138853 A JP50138853 A JP 50138853A JP 13885375 A JP13885375 A JP 13885375A JP S5262448 A JPS5262448 A JP S5262448A
- Authority
- JP
- Japan
- Prior art keywords
- lens surface
- photoelectric instrument
- monitoring device
- surface monitoring
- photoelectric
- 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
- Length Measuring Devices By Optical Means (AREA)
- Geophysics And Detection Of Objects (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
PURPOSE: To prevent erroneous action of the photoelectric instrument by projecting the light from the projecting element onto the lens surface of the photoelectric instrument and detecting dust on the lens surface by examining the reflected light.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50138853A JPS5262448A (en) | 1975-11-18 | 1975-11-18 | Lens surface monitoring device of photoelectric instrument |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50138853A JPS5262448A (en) | 1975-11-18 | 1975-11-18 | Lens surface monitoring device of photoelectric instrument |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5262448A true JPS5262448A (en) | 1977-05-23 |
Family
ID=15231677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50138853A Pending JPS5262448A (en) | 1975-11-18 | 1975-11-18 | Lens surface monitoring device of photoelectric instrument |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5262448A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6417348A (en) * | 1987-06-25 | 1989-01-20 | Amp Inc | Input detector which detects opaque element in lit region in which surrounding light is varied |
JP2008085344A (en) * | 2006-09-28 | 2008-04-10 | Samsung Electro-Mechanics Co Ltd | Tantalum capacitor |
-
1975
- 1975-11-18 JP JP50138853A patent/JPS5262448A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6417348A (en) * | 1987-06-25 | 1989-01-20 | Amp Inc | Input detector which detects opaque element in lit region in which surrounding light is varied |
JP2008085344A (en) * | 2006-09-28 | 2008-04-10 | Samsung Electro-Mechanics Co Ltd | Tantalum capacitor |
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