JPS5538520A - Reflection-refraction type telephoto lens - Google Patents
Reflection-refraction type telephoto lensInfo
- Publication number
- JPS5538520A JPS5538520A JP11116478A JP11116478A JPS5538520A JP S5538520 A JPS5538520 A JP S5538520A JP 11116478 A JP11116478 A JP 11116478A JP 11116478 A JP11116478 A JP 11116478A JP S5538520 A JPS5538520 A JP S5538520A
- Authority
- JP
- Japan
- Prior art keywords
- lens
- face
- reflecting
- refracts
- mirror
- 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 obtain the micro-miniature reflection-refraction type telephoto lens by constituting the lens by a condenser type lens L1, concave back reflecting mirror M1, convex back mirror M2 and lens group L2 along the advancing direction of incident luminous flux and positioning M2 on the object side than L1.
CONSTITUTION: Incident light transmits and refracts through a condenser type lens L1, refracts on the surface r3 of a concave back reflecting mirror M1, reflects on its face r4, refracts on the face r5 of a convex back mirror M2, is reflected by its face r6 and transmits and refracts through a lens group L2. The reflecting faces r5 and r6 of the concave back reflecting mirror M1 and convex back mirror M2 in such constitution form a telephoto lens system and as a whole the lens group L2 of concave lenses multiplies the action of the telephoto lens. Since the optical path of the entire optical system is folded, miniaturization is made possible. The effective spacing of the reflecting faces r4 and r6 is taken by providing the reflecting face r6 on the object side than the condenser lens L1, whereby shielding by the reflecting face r6 may be reduced and yet the overvall length may be shortened.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11116478A JPS5538520A (en) | 1978-09-08 | 1978-09-08 | Reflection-refraction type telephoto lens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11116478A JPS5538520A (en) | 1978-09-08 | 1978-09-08 | Reflection-refraction type telephoto lens |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5538520A true JPS5538520A (en) | 1980-03-18 |
Family
ID=14554092
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11116478A Pending JPS5538520A (en) | 1978-09-08 | 1978-09-08 | Reflection-refraction type telephoto lens |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5538520A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5796312A (en) * | 1980-10-17 | 1982-06-15 | Kantsueku Rudobuiku | High speed catadioptric object lens system |
JPS58122383A (en) * | 1982-01-12 | 1983-07-21 | マシネフアブリツク・ツエ−・リイカ−ルト・ベ−・ハウ | Pump structure proper to transfer of high viscous substance |
JPS58205124A (en) * | 1982-05-26 | 1983-11-30 | Nippon Kogaku Kk <Nikon> | Reflecting and refracting telephoto lens |
US4951078A (en) * | 1988-05-16 | 1990-08-21 | Minolta Camera Kabushiki Kaisha | Camera system including catadioptric lens and catadioptric lens system used therein |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3547525A (en) * | 1967-08-31 | 1970-12-15 | Perkin Elmer Corp | Catadioptric system |
JPS4966339A (en) * | 1972-10-16 | 1974-06-27 | ||
JPS5136133A (en) * | 1974-07-22 | 1976-03-26 | Perkin Elmer Corp | Kutsusetsuryono kogakusochi |
JPS5376830A (en) * | 1976-12-18 | 1978-07-07 | Yashica Co Ltd | Smalllsized telescopic reflection lens system |
-
1978
- 1978-09-08 JP JP11116478A patent/JPS5538520A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3547525A (en) * | 1967-08-31 | 1970-12-15 | Perkin Elmer Corp | Catadioptric system |
JPS4966339A (en) * | 1972-10-16 | 1974-06-27 | ||
JPS5136133A (en) * | 1974-07-22 | 1976-03-26 | Perkin Elmer Corp | Kutsusetsuryono kogakusochi |
JPS5376830A (en) * | 1976-12-18 | 1978-07-07 | Yashica Co Ltd | Smalllsized telescopic reflection lens system |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5796312A (en) * | 1980-10-17 | 1982-06-15 | Kantsueku Rudobuiku | High speed catadioptric object lens system |
JPS58122383A (en) * | 1982-01-12 | 1983-07-21 | マシネフアブリツク・ツエ−・リイカ−ルト・ベ−・ハウ | Pump structure proper to transfer of high viscous substance |
JPH0477159B2 (en) * | 1982-01-12 | 1992-12-07 | Mashinefuaburiiku Tsuee Riikaaruto Bv | |
JPS58205124A (en) * | 1982-05-26 | 1983-11-30 | Nippon Kogaku Kk <Nikon> | Reflecting and refracting telephoto lens |
JPH0318162B2 (en) * | 1982-05-26 | 1991-03-11 | Nippon Kogaku Kk | |
US4951078A (en) * | 1988-05-16 | 1990-08-21 | Minolta Camera Kabushiki Kaisha | Camera system including catadioptric lens and catadioptric lens system used therein |
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