HK1006879A1 - Overhead projector with achromatic fresnel lens - Google Patents
Overhead projector with achromatic fresnel lensInfo
- Publication number
- HK1006879A1 HK1006879A1 HK98105953A HK98105953A HK1006879A1 HK 1006879 A1 HK1006879 A1 HK 1006879A1 HK 98105953 A HK98105953 A HK 98105953A HK 98105953 A HK98105953 A HK 98105953A HK 1006879 A1 HK1006879 A1 HK 1006879A1
- Authority
- HK
- Hong Kong
- Prior art keywords
- fresnel lens
- overhead projector
- achromatic fresnel
- achromatic
- projector
- Prior art date
Links
Classifications
-
- 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
-
- 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
-
- 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)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/084,513 US5317349A (en) | 1993-06-29 | 1993-06-29 | Overhead projector with achromatic fresnel lens |
PCT/US1994/005934 WO1995001587A1 (en) | 1993-06-29 | 1994-05-26 | Overhead projector with achromatic fresnel lens |
Publications (1)
Publication Number | Publication Date |
---|---|
HK1006879A1 true HK1006879A1 (en) | 1999-03-19 |
Family
ID=22185424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK98105953A HK1006879A1 (en) | 1993-06-29 | 1998-06-22 | Overhead projector with achromatic fresnel lens |
Country Status (10)
Country | Link |
---|---|
US (2) | US5317349A (ja) |
EP (1) | EP0706676B1 (ja) |
JP (1) | JPH08512142A (ja) |
KR (1) | KR960702911A (ja) |
CN (1) | CN1056930C (ja) |
DE (1) | DE69402073T2 (ja) |
HK (1) | HK1006879A1 (ja) |
SI (1) | SI9420038A (ja) |
TW (1) | TW217446B (ja) |
WO (1) | WO1995001587A1 (ja) |
Families Citing this family (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5296882A (en) * | 1992-12-21 | 1994-03-22 | Minnesota Mining And Manufacturing Company | Overhead projector with catadioptric fresnel lens |
US5317349A (en) * | 1993-06-29 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Overhead projector with achromatic fresnel lens |
EP0745228B1 (en) * | 1994-02-16 | 1999-04-14 | Minnesota Mining And Manufacturing Company | Dual grooved fresnel lens for overhead projection |
US5515123A (en) * | 1994-02-17 | 1996-05-07 | Minnesota Mining And Manufacturing Company | Condensers for illumination systems |
JP3409587B2 (ja) * | 1996-05-14 | 2003-05-26 | オムロン株式会社 | 光路変換光学素子、画像表示装置及び光投射器 |
US5997709A (en) * | 1996-05-28 | 1999-12-07 | Minnesota Mining And Manufacturing Co. | Method of providing diffuse risers on a fresnel lens die |
US6292295B1 (en) * | 1997-12-16 | 2001-09-18 | Kuraray Co., Ltd. | Rear projection screen incorporating a prism |
JP2001337206A (ja) * | 2000-05-26 | 2001-12-07 | Toppan Printing Co Ltd | フレネルレンズ |
US6914723B2 (en) * | 2001-11-09 | 2005-07-05 | Xradia, Inc. | Reflective lithography mask inspection tool based on achromatic Fresnel optics |
US6917472B1 (en) * | 2001-11-09 | 2005-07-12 | Xradia, Inc. | Achromatic fresnel optics for ultraviolet and x-ray radiation |
KR20070042212A (ko) * | 2004-09-07 | 2007-04-20 | 코닌클리케 필립스 일렉트로닉스 엔.브이. | 프레넬 구조를 갖는 광학장치 |
US20070091452A1 (en) * | 2005-10-25 | 2007-04-26 | Scott Lerner | Projection system and method |
JP4743607B2 (ja) * | 2005-12-22 | 2011-08-10 | 株式会社ニコン | フレネルレンズ、および、このフレネルレンズを用いた液晶プロジェクタ |
JP5827104B2 (ja) * | 2010-11-19 | 2015-12-02 | 株式会社半導体エネルギー研究所 | 照明装置 |
CN102183823A (zh) * | 2011-05-10 | 2011-09-14 | 南京邮电大学 | 一种光纤准直器 |
JP5192067B2 (ja) * | 2011-09-09 | 2013-05-08 | シャープ株式会社 | フレネルレンズ |
USD744155S1 (en) * | 2014-05-28 | 2015-11-24 | Osram Sylvania Inc. | Lens |
US11588137B2 (en) | 2019-06-05 | 2023-02-21 | Semiconductor Energy Laboratory Co., Ltd. | Functional panel, display device, input/output device, and data processing device |
US11659758B2 (en) | 2019-07-05 | 2023-05-23 | Semiconductor Energy Laboratory Co., Ltd. | Display unit, display module, and electronic device |
JP7530897B2 (ja) | 2019-07-12 | 2024-08-08 | 株式会社半導体エネルギー研究所 | 機能パネル、表示装置、入出力装置、情報処理装置 |
JPWO2021069999A1 (ja) | 2019-10-11 | 2021-04-15 |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2003804A (en) * | 1932-07-21 | 1935-06-04 | Gen Motors Corp | Lens |
JPS51933Y1 (ja) * | 1969-06-17 | 1976-01-12 | ||
US3712713A (en) * | 1970-08-10 | 1973-01-23 | Minnesota Mining & Mfg | Optical shield of transparant intermeshed grooved panels useful on overhead projects |
US3982822A (en) * | 1975-03-03 | 1976-09-28 | Minnesota Mining And Manufacturing Company | Composite Fresnel lens assembly |
US4118114A (en) * | 1974-08-21 | 1978-10-03 | Minnesota Mining And Manufacturing Company | Low-glare overhead projector |
US4108540A (en) * | 1976-06-17 | 1978-08-22 | Minnesota Mining And Manufacturing Company | Refractor-reflector radiation concentrator |
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 |
US4436392A (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 |
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 |
DE3728191C1 (de) * | 1987-08-24 | 1989-02-23 | Medium Vertriebsgesellschaft F | Durchlicht-Schreibprojektor |
US5161057A (en) * | 1988-09-12 | 1992-11-03 | Johnson Kenneth C | Dispersion-compensated fresnel lens |
US5208620A (en) * | 1988-10-04 | 1993-05-04 | Canon Kabushiki Kaisha | Display apparatus |
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 |
EP0422661A3 (en) * | 1989-10-13 | 1992-07-01 | Mitsubishi Rayon Co., Ltd | Polarization forming optical device and polarization beam splitter |
US5150966A (en) * | 1990-09-19 | 1992-09-29 | Minnesota Mining And Manufacturing Company | Uniform intensity profile catadioptric lens |
GB9108033D0 (en) * | 1991-04-16 | 1991-06-05 | Britax Vega Ltd | Vehicle lamp |
US5296882A (en) * | 1992-12-21 | 1994-03-22 | Minnesota Mining And Manufacturing Company | Overhead projector with catadioptric fresnel lens |
US5317349A (en) * | 1993-06-29 | 1994-05-31 | Minnesota Mining And Manufacturing Company | Overhead projector with achromatic fresnel lens |
-
1993
- 1993-06-29 US US08/084,513 patent/US5317349A/en not_active Expired - Fee Related
- 1993-07-09 TW TW082105488A patent/TW217446B/zh active
-
1994
- 1994-03-29 US US08/219,654 patent/US5453880A/en not_active Expired - Fee Related
- 1994-05-26 SI SI9420038A patent/SI9420038A/sl unknown
- 1994-05-26 EP EP94918133A patent/EP0706676B1/en not_active Expired - Lifetime
- 1994-05-26 CN CN94192596A patent/CN1056930C/zh not_active Expired - Fee Related
- 1994-05-26 WO PCT/US1994/005934 patent/WO1995001587A1/en active IP Right Grant
- 1994-05-26 JP JP7503478A patent/JPH08512142A/ja active Pending
- 1994-05-26 DE DE69402073T patent/DE69402073T2/de not_active Expired - Fee Related
-
1995
- 1995-12-01 KR KR1019950705420A patent/KR960702911A/ko not_active Application Discontinuation
-
1998
- 1998-06-22 HK HK98105953A patent/HK1006879A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1056930C (zh) | 2000-09-27 |
CN1126521A (zh) | 1996-07-10 |
EP0706676B1 (en) | 1997-03-12 |
US5317349A (en) | 1994-05-31 |
EP0706676A1 (en) | 1996-04-17 |
US5453880A (en) | 1995-09-26 |
DE69402073T2 (de) | 1997-10-09 |
DE69402073D1 (de) | 1997-04-17 |
SI9420038A (en) | 1996-06-30 |
JPH08512142A (ja) | 1996-12-17 |
WO1995001587A1 (en) | 1995-01-12 |
TW217446B (en) | 1993-12-11 |
KR960702911A (ko) | 1996-05-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PC | Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee) |