JPS6229941Y2 - - Google Patents
Info
- Publication number
- JPS6229941Y2 JPS6229941Y2 JP17043979U JP17043979U JPS6229941Y2 JP S6229941 Y2 JPS6229941 Y2 JP S6229941Y2 JP 17043979 U JP17043979 U JP 17043979U JP 17043979 U JP17043979 U JP 17043979U JP S6229941 Y2 JPS6229941 Y2 JP S6229941Y2
- Authority
- JP
- Japan
- Prior art keywords
- screen
- scale
- target
- light
- light source
- 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.)
- Expired
Links
- 238000005286 illumination Methods 0.000 claims description 17
- 230000003287 optical effect Effects 0.000 claims description 14
- 238000009792 diffusion process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17043979U JPS6229941Y2 (enrdf_load_html_response) | 1979-12-11 | 1979-12-11 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17043979U JPS6229941Y2 (enrdf_load_html_response) | 1979-12-11 | 1979-12-11 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5688134U JPS5688134U (enrdf_load_html_response) | 1981-07-14 |
JPS6229941Y2 true JPS6229941Y2 (enrdf_load_html_response) | 1987-08-01 |
Family
ID=29681282
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17043979U Expired JPS6229941Y2 (enrdf_load_html_response) | 1979-12-11 | 1979-12-11 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6229941Y2 (enrdf_load_html_response) |
-
1979
- 1979-12-11 JP JP17043979U patent/JPS6229941Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5688134U (enrdf_load_html_response) | 1981-07-14 |
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