JPH0422323Y2 - - Google Patents
Info
- Publication number
- JPH0422323Y2 JPH0422323Y2 JP12236987U JP12236987U JPH0422323Y2 JP H0422323 Y2 JPH0422323 Y2 JP H0422323Y2 JP 12236987 U JP12236987 U JP 12236987U JP 12236987 U JP12236987 U JP 12236987U JP H0422323 Y2 JPH0422323 Y2 JP H0422323Y2
- Authority
- JP
- Japan
- Prior art keywords
- annular
- light
- condensing
- light beam
- hollow
- 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
- 230000003287 optical effect Effects 0.000 claims description 19
- 230000004907 flux Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
Landscapes
- Lenses (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12236987U JPH0422323Y2 (US20020128544A1-20020912-P00008.png) | 1987-08-10 | 1987-08-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12236987U JPH0422323Y2 (US20020128544A1-20020912-P00008.png) | 1987-08-10 | 1987-08-10 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6426722U JPS6426722U (US20020128544A1-20020912-P00008.png) | 1989-02-15 |
| JPH0422323Y2 true JPH0422323Y2 (US20020128544A1-20020912-P00008.png) | 1992-05-21 |
Family
ID=31370235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12236987U Expired JPH0422323Y2 (US20020128544A1-20020912-P00008.png) | 1987-08-10 | 1987-08-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0422323Y2 (US20020128544A1-20020912-P00008.png) |
-
1987
- 1987-08-10 JP JP12236987U patent/JPH0422323Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6426722U (US20020128544A1-20020912-P00008.png) | 1989-02-15 |
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