JPS5221840A - Optical system using a correction lens in a refraction telescope - Google Patents
Optical system using a correction lens in a refraction telescopeInfo
- Publication number
- JPS5221840A JPS5221840A JP9720475A JP9720475A JPS5221840A JP S5221840 A JPS5221840 A JP S5221840A JP 9720475 A JP9720475 A JP 9720475A JP 9720475 A JP9720475 A JP 9720475A JP S5221840 A JPS5221840 A JP S5221840A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- correction lens
- telescope
- refraction
- object lens
- 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
Abstract
PURPOSE: To make astigmatism and image surface buldge aberration almost zero by assemblying a correction lens on the object lens side of the object lens focus position and making it a composite object lens.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9720475A JPS5221840A (en) | 1975-08-12 | 1975-08-12 | Optical system using a correction lens in a refraction telescope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9720475A JPS5221840A (en) | 1975-08-12 | 1975-08-12 | Optical system using a correction lens in a refraction telescope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5221840A true JPS5221840A (en) | 1977-02-18 |
Family
ID=14186072
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9720475A Pending JPS5221840A (en) | 1975-08-12 | 1975-08-12 | Optical system using a correction lens in a refraction telescope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5221840A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01157210A (en) * | 1987-12-10 | 1989-06-20 | Mirai Ind Co Ltd | Floor wiring mechanism |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE235575C (en) * | ||||
US2479792A (en) * | 1948-05-15 | 1949-08-23 | Bausch & Lomb | Optical system for variable power telescopes |
US3152212A (en) * | 1961-05-16 | 1964-10-06 | Bausch & Lomb | Optical system for telescope |
-
1975
- 1975-08-12 JP JP9720475A patent/JPS5221840A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE235575C (en) * | ||||
US2479792A (en) * | 1948-05-15 | 1949-08-23 | Bausch & Lomb | Optical system for variable power telescopes |
US3152212A (en) * | 1961-05-16 | 1964-10-06 | Bausch & Lomb | Optical system for telescope |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01157210A (en) * | 1987-12-10 | 1989-06-20 | Mirai Ind Co Ltd | Floor wiring mechanism |
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