JPS5699302A - Annular type optical lens - Google Patents
Annular type optical lensInfo
- Publication number
- JPS5699302A JPS5699302A JP114080A JP114080A JPS5699302A JP S5699302 A JPS5699302 A JP S5699302A JP 114080 A JP114080 A JP 114080A JP 114080 A JP114080 A JP 114080A JP S5699302 A JPS5699302 A JP S5699302A
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- optical lens
- type optical
- annular type
- horizon
- 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
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
PURPOSE: To measure the measurement of horizon and prependicular by one person by making a convex or concave optical lens into a wheel type.
CONSTITUTION: The measurement which colud not have hitherto been made unless there are plural operators is made possible with one person for both horizon and perpendicular, by using an instrument using a wheel type lens. The measurement is made while a light emitting or signal transmitting source is mounted at the cenrer of the annular type lens, and superior measurement characteristics is obtained by the combination of the convex and concave wheel lenses.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP114080A JPS5699302A (en) | 1980-01-08 | 1980-01-08 | Annular type optical lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP114080A JPS5699302A (en) | 1980-01-08 | 1980-01-08 | Annular type optical lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5699302A true JPS5699302A (en) | 1981-08-10 |
Family
ID=11493135
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP114080A Pending JPS5699302A (en) | 1980-01-08 | 1980-01-08 | Annular type optical lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5699302A (en) |
-
1980
- 1980-01-08 JP JP114080A patent/JPS5699302A/en active Pending
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