FR2238165B1 - - Google Patents
Info
- Publication number
- FR2238165B1 FR2238165B1 FR7419401A FR7419401A FR2238165B1 FR 2238165 B1 FR2238165 B1 FR 2238165B1 FR 7419401 A FR7419401 A FR 7419401A FR 7419401 A FR7419401 A FR 7419401A FR 2238165 B1 FR2238165 B1 FR 2238165B1
- Authority
- FR
- France
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
- G02B17/0856—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors
- G02B17/086—Catadioptric systems comprising a refractive element with a reflective surface, the reflection taking place inside the element, e.g. Mangin mirrors wherein the system is made of a single block of optical material, e.g. solid catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/08—Catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US380448A US3914030A (en) | 1971-04-12 | 1973-07-18 | Virtual image magnifier system filled with a refractive medium |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2238165A1 FR2238165A1 (en) | 1975-02-14 |
FR2238165B1 true FR2238165B1 (xx) | 1978-10-27 |
Family
ID=23501201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7419401A Granted FR2238165A1 (en) | 1973-07-18 | 1974-06-05 | Magnifying glass with enlarged observation space - has refractive material between magnifying concave mirror and half-silvered mirror |
Country Status (7)
Country | Link |
---|---|
JP (2) | JPS5029049A (xx) |
AU (1) | AU503958B2 (xx) |
CA (1) | CA1026600A (xx) |
CH (1) | CH591092A5 (xx) |
DE (1) | DE2434436C3 (xx) |
FR (1) | FR2238165A1 (xx) |
IT (1) | IT1005984B (xx) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3028032C2 (de) * | 1980-07-24 | 1982-05-13 | Spindler & Hoyer GmbH & Co, 3400 Göttingen | Hochvergrößernde Lupe, insbesondere zur Betrachtung von Mikrofilm |
DE3924932A1 (de) * | 1989-07-27 | 1991-01-31 | Sattler Hans Eberhard | Vorrichtung zur betrachtung kleiner objekte, insbesondere von edelsteinen |
US5224198A (en) * | 1991-09-30 | 1993-06-29 | Motorola, Inc. | Waveguide virtual image display |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB675549A (en) * | 1949-10-28 | 1952-07-09 | Copeland Jacob C | Improvements in magnifying viewers |
US3216308A (en) * | 1961-10-05 | 1965-11-09 | Marvin J Northcutt | Aircraft landing sight including collimating mangin mirror and corrector lens |
-
1974
- 1974-03-28 CA CA196,201A patent/CA1026600A/en not_active Expired
- 1974-04-17 IT IT5045174A patent/IT1005984B/it active
- 1974-05-08 CH CH627074A patent/CH591092A5/xx not_active IP Right Cessation
- 1974-05-22 JP JP49057732A patent/JPS5029049A/ja active Pending
- 1974-06-05 FR FR7419401A patent/FR2238165A1/fr active Granted
- 1974-07-12 AU AU71170/74A patent/AU503958B2/en not_active Expired
- 1974-07-17 DE DE19742434436 patent/DE2434436C3/de not_active Expired
-
1982
- 1982-01-11 JP JP211182U patent/JPS57146113U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
DE2434436C3 (de) | 1979-08-30 |
CH591092A5 (xx) | 1977-09-15 |
JPS5029049A (xx) | 1975-03-24 |
DE2434436B2 (de) | 1978-12-07 |
FR2238165A1 (en) | 1975-02-14 |
DE2434436A1 (de) | 1975-02-06 |
JPS57146113U (xx) | 1982-09-14 |
AU503958B2 (en) | 1979-09-27 |
IT1005984B (it) | 1976-09-30 |
AU7117074A (en) | 1976-01-15 |
CA1026600A (en) | 1978-02-21 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |