JPS5262023A - Finder optical system of inverse galileo type - Google Patents
Finder optical system of inverse galileo typeInfo
- Publication number
- JPS5262023A JPS5262023A JP13762875A JP13762875A JPS5262023A JP S5262023 A JPS5262023 A JP S5262023A JP 13762875 A JP13762875 A JP 13762875A JP 13762875 A JP13762875 A JP 13762875A JP S5262023 A JPS5262023 A JP S5262023A
- Authority
- JP
- Japan
- Prior art keywords
- optical system
- finder optical
- galileo type
- inverse galileo
- plane
- 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.)
- Granted
Links
Landscapes
- Telescopes (AREA)
- Lenses (AREA)
- Viewfinders (AREA)
Abstract
PURPOSE: To enhance distortion, visibility characteristic by rendering the plane of an objective lens to be non-spherical which satisfies the formula I, and rendering non-spherical curvatures of the fourth degree of the first plane, of the fourth and sixth degrees of the second plane to have the values which satisfy the formulas 2W4.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13762875A JPS5262023A (en) | 1975-11-14 | 1975-11-14 | Finder optical system of inverse galileo type |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13762875A JPS5262023A (en) | 1975-11-14 | 1975-11-14 | Finder optical system of inverse galileo type |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62179376A Division JPS6371822A (en) | 1987-07-17 | 1987-07-17 | Reverse galiiean finder optical system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5262023A true JPS5262023A (en) | 1977-05-23 |
JPS6135533B2 JPS6135533B2 (en) | 1986-08-13 |
Family
ID=15203093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13762875A Granted JPS5262023A (en) | 1975-11-14 | 1975-11-14 | Finder optical system of inverse galileo type |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5262023A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60102062A (en) * | 1983-11-08 | 1985-06-06 | Matsushita Electric Ind Co Ltd | Amplifier of sensitivity of vertical synchronizing signal |
JPS61270721A (en) * | 1985-05-27 | 1986-12-01 | Nippon Kogaku Kk <Nikon> | Magnification conversion type reverse galilean finder |
JPS63287815A (en) * | 1987-05-20 | 1988-11-24 | Konica Corp | Lighting type variable power finder |
US5483381A (en) * | 1993-01-29 | 1996-01-09 | Olympus Optical Co., Ltd. | Reversed galilean finder optical system |
US5715090A (en) * | 1996-02-20 | 1998-02-03 | Eastman Kodak Company | Color corrected viewfinder including a negative power lens component having a diffractive surface |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575082A (en) * | 1968-06-24 | 1971-04-13 | Eastman Kodak Co | Albada viewfinder having three lens components |
JPS4852229A (en) * | 1971-10-30 | 1973-07-23 | ||
JPS5087027A (en) * | 1973-11-30 | 1975-07-12 |
-
1975
- 1975-11-14 JP JP13762875A patent/JPS5262023A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3575082A (en) * | 1968-06-24 | 1971-04-13 | Eastman Kodak Co | Albada viewfinder having three lens components |
JPS4852229A (en) * | 1971-10-30 | 1973-07-23 | ||
JPS5087027A (en) * | 1973-11-30 | 1975-07-12 |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60102062A (en) * | 1983-11-08 | 1985-06-06 | Matsushita Electric Ind Co Ltd | Amplifier of sensitivity of vertical synchronizing signal |
JPH0329230B2 (en) * | 1983-11-08 | 1991-04-23 | Matsushita Electric Ind Co Ltd | |
JPS61270721A (en) * | 1985-05-27 | 1986-12-01 | Nippon Kogaku Kk <Nikon> | Magnification conversion type reverse galilean finder |
JPS63287815A (en) * | 1987-05-20 | 1988-11-24 | Konica Corp | Lighting type variable power finder |
US5483381A (en) * | 1993-01-29 | 1996-01-09 | Olympus Optical Co., Ltd. | Reversed galilean finder optical system |
US5715090A (en) * | 1996-02-20 | 1998-02-03 | Eastman Kodak Company | Color corrected viewfinder including a negative power lens component having a diffractive surface |
Also Published As
Publication number | Publication date |
---|---|
JPS6135533B2 (en) | 1986-08-13 |
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