CH571727A5 - - Google Patents
Info
- Publication number
- CH571727A5 CH571727A5 CH1351174A CH1351174A CH571727A5 CH 571727 A5 CH571727 A5 CH 571727A5 CH 1351174 A CH1351174 A CH 1351174A CH 1351174 A CH1351174 A CH 1351174A CH 571727 A5 CH571727 A5 CH 571727A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C11/00—Photogrammetry or videogrammetry, e.g. stereogrammetry; Photographic surveying
- G01C11/04—Interpretation of pictures
- G01C11/06—Interpretation of pictures by comparison of two or more pictures of the same area
- G01C11/12—Interpretation of pictures by comparison of two or more pictures of the same area the pictures being supported in the same relative position as when they were taken
- G01C11/14—Interpretation of pictures by comparison of two or more pictures of the same area the pictures being supported in the same relative position as when they were taken with optical projection
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0009—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only
- G02B19/0014—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed having refractive surfaces only at least one surface having optical power
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
- G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/08—Simple or compound lenses with non-spherical faces with discontinuous faces, e.g. Fresnel lens
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Lenses (AREA)
- Liquid Crystal (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD176944A DD110366A1 (US07494231-20090224-C00006.png) | 1974-03-05 | 1974-03-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH571727A5 true CH571727A5 (US07494231-20090224-C00006.png) | 1976-01-15 |
Family
ID=5494834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1351174A CH571727A5 (US07494231-20090224-C00006.png) | 1974-03-05 | 1974-10-08 |
Country Status (5)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4514063A (en) * | 1983-04-28 | 1985-04-30 | Wang Laboratories, Inc. | Scanner document positioning device |
| JPH0623817B2 (ja) * | 1985-07-18 | 1994-03-30 | 旭光学工業株式会社 | 液晶投写型画像表示装置 |
| US4770525A (en) * | 1986-03-24 | 1988-09-13 | Casio Computer Co., Ltd. | Liquid crystal projector |
| JP3936412B2 (ja) * | 1996-07-15 | 2007-06-27 | 大日本印刷株式会社 | フレネルレンズシート及び透過型スクリーン |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2804802A (en) * | 1952-11-07 | 1957-09-03 | W & L E Gurley | Erecting eyepiece affording variable magnification |
| US3334958A (en) * | 1963-08-07 | 1967-08-08 | Minnesota Mining & Mfg | Nested fresnel-type lenses |
| US3340765A (en) * | 1964-07-27 | 1967-09-12 | Bell Telephone Labor Inc | Projection system |
| US3366006A (en) * | 1965-07-12 | 1968-01-30 | Sales Imagineering Ltd | Slide projector for producing animated images |
| US3511563A (en) * | 1967-11-14 | 1970-05-12 | Minnesota Mining & Mfg | Projector |
-
1974
- 1974-03-05 DD DD176944A patent/DD110366A1/xx unknown
- 1974-10-05 DE DE19742447595 patent/DE2447595A1/de not_active Withdrawn
- 1974-10-08 CH CH1351174A patent/CH571727A5/xx not_active IP Right Cessation
-
1975
- 1975-01-24 SU SU752098468A patent/SU667933A1/ru active
- 1975-02-05 US US05/547,752 patent/US4012136A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2447595A1 (de) | 1975-09-11 |
| US4012136A (en) | 1977-03-15 |
| DD110366A1 (US07494231-20090224-C00006.png) | 1974-12-12 |
| SU667933A1 (ru) | 1979-06-15 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased |