ES2118883T3 - Proyector elevado con una lente de fresnel catadioptrica. - Google Patents
Proyector elevado con una lente de fresnel catadioptrica.Info
- Publication number
- ES2118883T3 ES2118883T3 ES93120366T ES93120366T ES2118883T3 ES 2118883 T3 ES2118883 T3 ES 2118883T3 ES 93120366 T ES93120366 T ES 93120366T ES 93120366 T ES93120366 T ES 93120366T ES 2118883 T3 ES2118883 T3 ES 2118883T3
- Authority
- ES
- Spain
- Prior art keywords
- lenses
- catadioptric
- fresnel
- projector
- allows
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- G03B21/132—Overhead projectors, i.e. capable of projecting hand-writing or drawing during action
-
- 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
- G03B21/142—Adjusting of projection optics
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S353/00—Optics: image projectors
- Y10S353/03—Transparent
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Liquid Crystal (AREA)
Abstract
UN PROYECTOR ELEVADO TRANSMISIVO DE PERFIL BAJO (10) EMPLEA UNA TRAYECTORIA OPTICA PLEGADA Y UN SISTEMA DE CONDENSACION DE LENTES FRESNEL DESCENTRADAS (32) QUE INCLUYE UN ELEMENTO DE LENTES CATADIOPTRICAS. ESTAS LENTES PROPORCIONAN UN SISTEMA DE CONDENSACION RAPIDO QUE PERMITE COLIMACION , DISPERSION, O CONCENTRACION DE LUZ ATACANDO LAS LENTES EN UN GRAN ANGULO DE INCIDENCIA, CON UNA TRANSMISION EFICIENTE HACIA EL BORDE LEJANO DE LAS MISMAS. ESTO TAMBIEN POSIBILITA UNA REDUCCION ADICIONAL DE LA ALTURA BASE OHP PERMITIENDO QUE EL ESPEJO SIMPLE SEA MONTADO EN UN ANGULO MAS PLANO, CON LA FUENTE DE LUZ MANTENIDA AUN EN UNA POSICION BAJO LA ALTURA (Y ADYACENTE). UN NUEVO DISEÑO DE LENTES CATADIOPTRICAS IMPARTE ADEMAS LA ACROMATICIDAD AL ELEMENTO DE FORMA QUE PUEDE CONSTRUIRSE DE CUALQUIER MATERIAL INDEPENDIENTEMENTE DE SU INDICE DE REFRACCION. EL SISTEMA DE CONDENSACION PUEDE TENER LENTES CATADIOPTRICAS SIMPLES O DOBLES.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/988,851 US5296882A (en) | 1992-12-21 | 1992-12-21 | Overhead projector with catadioptric fresnel lens |
Publications (1)
Publication Number | Publication Date |
---|---|
ES2118883T3 true ES2118883T3 (es) | 1998-10-01 |
Family
ID=25534540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES93120366T Expired - Lifetime ES2118883T3 (es) | 1992-12-21 | 1993-12-17 | Proyector elevado con una lente de fresnel catadioptrica. |
Country Status (10)
Country | Link |
---|---|
US (3) | US5296882A (es) |
EP (1) | EP0607582B1 (es) |
JP (1) | JPH06222460A (es) |
KR (1) | KR940015658A (es) |
CN (1) | CN1064459C (es) |
DE (1) | DE69319876T2 (es) |
ES (1) | ES2118883T3 (es) |
HK (1) | HK1012725A1 (es) |
SI (1) | SI9300670A (es) |
TW (1) | TW221072B (es) |
Families Citing this family (32)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE9300958L (sv) * | 1993-03-23 | 1994-09-24 | Nova Onab Optica Ab | Offset projektor |
US5400094A (en) * | 1993-03-31 | 1995-03-21 | Minnesota Mining And Manufacturing Company | Condensers for overhead projectors |
US5510861A (en) * | 1993-05-11 | 1996-04-23 | Proxima Corporation | Compact projector and method of using same |
US5317349A (en) * | 1993-06-29 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Overhead projector with achromatic fresnel lens |
GB9323663D0 (en) * | 1993-11-17 | 1994-01-05 | Menvier Electronic Eng Ltd | Luminates |
EP0745228B1 (en) * | 1994-02-16 | 1999-04-14 | Minnesota Mining And Manufacturing Company | Dual grooved fresnel lens for overhead projection |
ATE160027T1 (de) * | 1994-04-18 | 1997-11-15 | Heinz Dr Seufert | Rückprojektionsmodul |
US5504544A (en) * | 1994-11-23 | 1996-04-02 | Minnesota Mining And Manufacturing Company | Projector with multiple lamp light source |
DE19532680A1 (de) * | 1995-09-05 | 1997-03-06 | Telefunken Microelectron | Optisches System |
DE19548855C2 (de) * | 1995-12-27 | 1999-05-20 | Liesegang Fa Ed | Overheadprojektor mit einem von einer klappbaren Säule getragenen Objektivkopf |
DE19737107C2 (de) * | 1997-08-26 | 2001-02-08 | Fresnel Optics Gmbh | Optische Anordnung bestehend aus mindestens zwei Fresnellinsen und Projektions- bzw. Displayvorrichtung mit dieser Anordnung |
US6504649B1 (en) | 2000-01-13 | 2003-01-07 | Kenneth J. Myers | Privacy screens and stereoscopic effects devices utilizing microprism sheets |
US6331915B1 (en) | 2000-06-13 | 2001-12-18 | Kenneth J. Myers | Lighting element including light emitting diodes, microprism sheet, reflector, and diffusing agent |
US6330111B1 (en) | 2000-06-13 | 2001-12-11 | Kenneth J. Myers, Edward Greenberg | Lighting elements including light emitting diodes, microprism sheet, reflector, and diffusing agent |
US6443579B1 (en) | 2001-05-02 | 2002-09-03 | Kenneth Myers | Field-of-view controlling arrangements |
TW486580B (en) * | 2001-06-07 | 2002-05-11 | Ind Tech Res Inst | Planar optical waveguide type dense wavelength division multiplexer |
US20050041307A1 (en) * | 2003-07-22 | 2005-02-24 | Stephen Barone | Directed Fresnel lenses |
CN101073022A (zh) * | 2004-09-07 | 2007-11-14 | 皇家飞利浦电子股份有限公司 | 具有菲涅尔结构的光学器件 |
US20070091452A1 (en) * | 2005-10-25 | 2007-04-26 | Scott Lerner | Projection system and method |
JP2007212576A (ja) * | 2006-02-07 | 2007-08-23 | Shinko Electric Ind Co Ltd | 光学装置 |
US20070206166A1 (en) * | 2006-03-02 | 2007-09-06 | Jing-Miau Wu | Light-projecting system for a projector and method of projecting light thereof |
JP4268979B2 (ja) * | 2006-09-15 | 2009-05-27 | シャープ株式会社 | 光源用カバー及びそれを備えた携帯機器 |
US20100006088A1 (en) * | 2008-07-14 | 2010-01-14 | Robert Owen Campbell | Tracking Concentrator Employing Inverted Off-Axis Optics and Method |
US20100175685A1 (en) * | 2008-07-14 | 2010-07-15 | Robert Owen Campbell | Advanced Tracking Concentrator Employing Rotating Input Arrangement and Method |
DE102010040962A1 (de) * | 2010-09-17 | 2012-03-22 | Carl Zeiss Ag | Anzeigevorrichtung mit einer auf den Kopf eines Benutzers aufsetzbaren Haltevorrichtung |
TWI418917B (zh) * | 2010-10-15 | 2013-12-11 | Young Optics Inc | 投影裝置 |
JP5839686B2 (ja) * | 2012-01-27 | 2016-01-06 | 株式会社エンプラス | 光束制御部材および発光装置 |
US8922895B1 (en) | 2013-07-03 | 2014-12-30 | 3M Innovative Properties Company | Optical body with fresnel-rendering of complex topographical surface |
WO2015050473A1 (en) * | 2013-10-03 | 2015-04-09 | Huawei Technologies Co., Ltd | Optical system for combining beams |
USD744155S1 (en) * | 2014-05-28 | 2015-11-24 | Osram Sylvania Inc. | Lens |
US10261332B1 (en) * | 2016-03-15 | 2019-04-16 | Raymond T. Hebert | Eyepiece lens with protected Fresnel and diffractive surfaces |
CN106772718B (zh) * | 2017-01-16 | 2018-11-02 | 广州弥德科技有限公司 | 菲涅尔透镜及具有该菲涅尔透镜的显示装置 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2003804A (en) * | 1932-07-21 | 1935-06-04 | Gen Motors Corp | Lens |
US3951534A (en) * | 1968-07-03 | 1976-04-20 | Gerald Altman | Short throw, oblique incidence, visual transparency projector |
US3951535A (en) * | 1970-10-19 | 1976-04-20 | Gerald Altman | Low profile episcopic projector |
SE418423B (sv) * | 1974-08-21 | 1981-05-25 | Minnesota Mining & Mfg | Kondensor, serskilt for anvendning i en arbetsprojektor |
US4118761A (en) * | 1977-02-28 | 1978-10-03 | Bausch & Lomb Incorporated | Light condensing illuminator |
JPS5560934A (en) * | 1978-10-31 | 1980-05-08 | Gakken Co Ltd | Color band removing focus adjusting method in overhead projector |
US4337759A (en) * | 1979-10-10 | 1982-07-06 | John M. Popovich | Radiant energy concentration by optical total internal reflection |
US4436393A (en) * | 1983-01-03 | 1984-03-13 | Minnesota Mining And Manufacturing Company | Distortion correction for an overhead projector system |
DE3519506A1 (de) * | 1985-05-31 | 1986-12-04 | Demolux Gmbh & Co Kg, 6070 Langen | Overhead-projektor |
US4755921A (en) * | 1986-04-02 | 1988-07-05 | Minnesota Mining And Manufacturing Company | Lens |
US4719547A (en) * | 1986-09-19 | 1988-01-12 | Minnesota Mining And Manufacturing Company | Illumination system for overhead projector |
US4741613A (en) * | 1986-12-19 | 1988-05-03 | Minnesota Mining And Manufacturing Company | Reduced height transmissive overhead projector |
US4859043A (en) * | 1987-05-07 | 1989-08-22 | Cibie Projecteurs | High efficiency signal light, in particular for a motor vehicle |
US4775232A (en) * | 1987-07-10 | 1988-10-04 | Spectra, Inc. | Catadioptric projection lantern |
DE3728191C1 (de) * | 1987-08-24 | 1989-02-23 | Medium Vertriebsgesellschaft F | Durchlicht-Schreibprojektor |
US4968134A (en) * | 1988-06-29 | 1990-11-06 | Ricoh Company, Ltd. | Overhead projector |
US5161057A (en) * | 1988-09-12 | 1992-11-03 | Johnson Kenneth C | Dispersion-compensated fresnel lens |
US4900129A (en) * | 1988-12-16 | 1990-02-13 | Minnesota Mining And Manufacturing Company | Dual grooved Fresnel lens for overhead projection |
US5097395A (en) * | 1989-02-24 | 1992-03-17 | Minnesota Mining And Manufacturing Company | Multiple cavity light fixture |
US4969733A (en) * | 1989-10-02 | 1990-11-13 | Dukane Corporation | Foldable portable overhead projector |
US5150966A (en) * | 1990-09-19 | 1992-09-29 | Minnesota Mining And Manufacturing Company | Uniform intensity profile catadioptric lens |
US5317349A (en) * | 1993-06-29 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Overhead projector with achromatic fresnel lens |
-
1992
- 1992-12-21 US US07/988,851 patent/US5296882A/en not_active Expired - Fee Related
- 1992-12-30 TW TW081110489A patent/TW221072B/zh active
-
1993
- 1993-12-17 ES ES93120366T patent/ES2118883T3/es not_active Expired - Lifetime
- 1993-12-17 DE DE69319876T patent/DE69319876T2/de not_active Expired - Fee Related
- 1993-12-17 EP EP93120366A patent/EP0607582B1/en not_active Expired - Lifetime
- 1993-12-20 KR KR1019930028540A patent/KR940015658A/ko not_active Application Discontinuation
- 1993-12-20 CN CN93119921A patent/CN1064459C/zh not_active Expired - Fee Related
- 1993-12-20 SI SI9300670A patent/SI9300670A/sl unknown
- 1993-12-20 JP JP5319428A patent/JPH06222460A/ja active Pending
-
1994
- 1994-03-21 US US08/215,936 patent/US5446594A/en not_active Expired - Fee Related
-
1995
- 1995-05-19 US US08/445,092 patent/US5568324A/en not_active Expired - Fee Related
-
1998
- 1998-12-16 HK HK98113737A patent/HK1012725A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
US5568324A (en) | 1996-10-22 |
SI9300670A (en) | 1994-09-30 |
EP0607582A1 (en) | 1994-07-27 |
CN1064459C (zh) | 2001-04-11 |
US5446594A (en) | 1995-08-29 |
CN1089730A (zh) | 1994-07-20 |
JPH06222460A (ja) | 1994-08-12 |
EP0607582B1 (en) | 1998-07-22 |
KR940015658A (ko) | 1994-07-21 |
DE69319876T2 (de) | 1999-01-21 |
DE69319876D1 (de) | 1998-08-27 |
TW221072B (en) | 1994-02-11 |
US5296882A (en) | 1994-03-22 |
HK1012725A1 (en) | 1999-08-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG2A | Definitive protection |
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