SI9300670A - Overhead projector with catadioptric fresnel lens - Google Patents

Overhead projector with catadioptric fresnel lens Download PDF

Info

Publication number: SI9300670A
Authority: SI; Slovenia
Prior art keywords: lens; light source; catadioptric; light; plane
Prior art date: 1992-12-21

Application number

SI9300670A

Other languages

English (en)

Slovenian (sl)

Inventor

John Carl Nelson

Robert Merl Fesler

Dennis Frank Vanderwerf

Original Assignee

Minnesota Mining & Mfg

Priority date (The priority date 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 date listed.)

1992-12-21

Filing date

1993-12-20

Publication date

1994-09-30

1993-12-20 Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg

1994-09-30 Publication of SI9300670A publication Critical patent/SI9300670A/sl

Links

238000012216 screening Methods 0.000 claims description 26
230000009977 dual effect Effects 0.000 claims description 5
239000002562 thickening agent Substances 0.000 claims description 3
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239000002131 composite material Substances 0.000 claims 7
230000005855 radiation Effects 0.000 claims 4
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150000001875 compounds Chemical class 0.000 claims 1
239000012141 concentrate Substances 0.000 claims 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
229910052753 mercury Inorganic materials 0.000 claims 1
230000003287 optical effect Effects 0.000 abstract description 21
239000000463 material Substances 0.000 abstract description 5
230000005540 biological transmission Effects 0.000 abstract description 2
239000006185 dispersion Substances 0.000 abstract description 2
238000013461 design Methods 0.000 description 8
238000005286 illumination Methods 0.000 description 5
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239000003086 colorant Substances 0.000 description 2
239000004020 conductor Substances 0.000 description 2
238000012937 correction Methods 0.000 description 2
238000009826 distribution Methods 0.000 description 2
239000004973 liquid crystal related substance Substances 0.000 description 2
238000004519 manufacturing process Methods 0.000 description 2
238000003860 storage Methods 0.000 description 2
229920002972 Acrylic fiber Polymers 0.000 description 1
239000004676 acrylonitrile butadiene styrene Substances 0.000 description 1
238000005899 aromatization reaction Methods 0.000 description 1
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229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
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239000004926 polymethyl methacrylate Substances 0.000 description 1
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229920005992 thermoplastic resin Polymers 0.000 description 1
239000010409 thin film Substances 0.000 description 1
238000012546 transfer Methods 0.000 description 1

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)

SI9300670A 1992-12-21 1993-12-20 Overhead projector with catadioptric fresnel lens SI9300670A (en)

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
SI9300670A true SI9300670A (en)	1994-09-30

Family

ID=25534540

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SI9300670A SI9300670A (en)	1992-12-21	1993-12-20	Overhead projector with catadioptric fresnel lens

Country Status (9)

Country	Link
US (3)	US5296882A (de)
EP (1)	EP0607582B1 (de)
JP (1)	JPH06222460A (de)
KR (1)	KR940015658A (de)
CN (1)	CN1064459C (de)
DE (1)	DE69319876T2 (de)
ES (1)	ES2118883T3 (de)
SI (1)	SI9300670A (de)
TW (1)	TW221072B (de)

Families Citing this family (32)

* Cited by examiner, † Cited by third party
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
JPH09509263A (ja) *	1994-02-16	1997-09-16	ミネソタ・マイニング・アンド・マニュファクチュアリング・カンパニー	オーバーヘッドプロジェクタ用の両面に溝の付いたフレネルレンズ
EP0756720B1 (de) *	1994-04-18	1997-11-05	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
WO2006027710A1 (en) *	2004-09-07	2006-03-16	Koninklijke Philips Electronics N.V.	Optical device with fresnel structure
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)

* Cited by examiner, † Cited by third party
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/de not_active Expired - Lifetime
- 1993-12-20 SI SI9300670A patent/SI9300670A/sl unknown
- 1993-12-20 KR KR1019930028540A patent/KR940015658A/ko not_active Withdrawn
- 1993-12-20 JP JP5319428A patent/JPH06222460A/ja active Pending
- 1993-12-20 CN CN93119921A patent/CN1064459C/zh not_active Expired - Fee Related
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

Also Published As

Publication number	Publication date
CN1064459C (zh)	2001-04-11
HK1012725A1 (en)	1999-08-06
DE69319876T2 (de)	1999-01-21
DE69319876D1 (de)	1998-08-27
EP0607582A1 (de)	1994-07-27
US5296882A (en)	1994-03-22
JPH06222460A (ja)	1994-08-12
ES2118883T3 (es)	1998-10-01
US5568324A (en)	1996-10-22
EP0607582B1 (de)	1998-07-22
TW221072B (en)	1994-02-11
US5446594A (en)	1995-08-29
KR940015658A (ko)	1994-07-21
CN1089730A (zh)	1994-07-20

Publication	Publication Date	Title
SI9300670A (en)	1994-09-30	Overhead projector with catadioptric fresnel lens
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TW468061B (en)	2001-12-11	Collecting and condensing optical system using cascaded parabolic reflectors
US5782553A (en)	1998-07-21	Multiple lamp lighting device
SI9420038A (en)	1996-06-30	Overhead projector with achromatic fresnel lens
CA2250312C (en)	2004-10-12	Illumination system comprising microprisms with blocking means
US4151584A (en)	1979-04-24	Light-collecting reflector
EP1092112A1 (de)	2001-04-18	Konstruktion zur erzeugung einer linearen lichtquelle
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