GB1375285A - - Google Patents

Info

Publication number
GB1375285A
GB1375285A GB733772A GB733772A GB1375285A GB 1375285 A GB1375285 A GB 1375285A GB 733772 A GB733772 A GB 733772A GB 733772 A GB733772 A GB 733772A GB 1375285 A GB1375285 A GB 1375285A
Authority
GB
United Kingdom
Prior art keywords
reflector
feb
stops
held
cradle
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
Application number
GB733772A
Other languages
English (en)
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.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1375285A publication Critical patent/GB1375285A/en
Expired legal-status Critical Current

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
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2046—Positional adjustment of light sources

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Overhead Projectors And Projection Screens (AREA)
GB733772A 1971-02-19 1972-02-17 Expired GB1375285A (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11677671A 1971-02-19 1971-02-19

Publications (1)

Publication Number Publication Date
GB1375285A true GB1375285A (en:Method) 1974-11-27

Family

ID=22369145

Family Applications (1)

Application Number Title Priority Date Filing Date
GB733772A Expired GB1375285A (en:Method) 1971-02-19 1972-02-17

Country Status (4)

Country Link
US (1) US3761170A (en:Method)
DE (1) DE7206153U (en:Method)
FR (1) FR2125970A5 (en:Method)
GB (1) GB1375285A (en:Method)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4185899A (en) * 1973-10-29 1980-01-29 Action Films, Inc. Combination viewer and projector
US4388679A (en) * 1981-02-23 1983-06-14 Gte Products Corporation Projection lighting unit with glass reflector capable of dual insertion
CA1193234A (en) * 1981-03-30 1985-09-10 Harold L. Hough Projection unit including glass reflector insulative cap member
JP2822696B2 (ja) * 1991-06-27 1998-11-11 富士写真フイルム株式会社 ビデオプロジェクタ
DE19711599B4 (de) * 1997-03-20 2009-06-04 Carl Zeiss Surgical Gmbh Beleuchtungseinrichtung
US6082864A (en) * 1997-09-29 2000-07-04 Ed. Liesegang Project or having a self-aligning replaceable projection lamp mechanism
JP3663928B2 (ja) * 1998-02-26 2005-06-22 セイコーエプソン株式会社 光源ランプユニットおよび投写型表示装置
US7268774B2 (en) * 1998-08-18 2007-09-11 Candledragon, Inc. Tracking motion of a writing instrument
US6056405A (en) * 1998-10-15 2000-05-02 In Focus Systems, Inc. Lamp module with kinematic mount
US6398367B1 (en) 1999-03-05 2002-06-04 Seiko Epson Corporation Light source device and projector using the light source device
US7257255B2 (en) * 2001-11-21 2007-08-14 Candledragon, Inc. Capturing hand motion
US7130507B2 (en) * 2002-10-18 2006-10-31 Exfo Photonic Solutions Inc. Light source unit for use with a light guide and lamp mounting arrangement
WO2004109737A2 (en) * 2003-06-02 2004-12-16 Infocus Corporation Lamp assembly for a projection device
US7390096B2 (en) * 2004-11-15 2008-06-24 Hewlett-Packard Development Company, L.P. Lamp to illumination optics assembly interface
US7559657B2 (en) * 2006-01-30 2009-07-14 Infocus Corporation Projection device
JP2007272040A (ja) * 2006-03-31 2007-10-18 Funai Electric Co Ltd プロジェクタ
US7755026B2 (en) * 2006-05-04 2010-07-13 CandleDragon Inc. Generating signals representative of sensed light that is associated with writing being done by a user
US20080018591A1 (en) * 2006-07-20 2008-01-24 Arkady Pittel User Interfacing
US20080166175A1 (en) * 2007-01-05 2008-07-10 Candledragon, Inc. Holding and Using an Electronic Pen and Paper
JP4609505B2 (ja) * 2008-03-05 2011-01-12 セイコーエプソン株式会社 光源装置、及びプロジェクタ
JP5621317B2 (ja) * 2010-05-17 2014-11-12 セイコーエプソン株式会社 プロジェクター
JP2012083624A (ja) * 2010-10-13 2012-04-26 Sanyo Electric Co Ltd ランプ保持用金具、ランプユニット、及び投写型映像表示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1675690A (en) * 1927-01-05 1928-07-03 Tung Sol Lamp Works Projector lamp for motor vehicles
US1985459A (en) * 1930-06-14 1934-12-25 Bond Electric Corp Flash light
GB910888A (en) * 1959-02-25 1962-11-21 Carr Fastener Co Ltd Improvements in and relating to means for retaining a thermionic valve or other electrical device having projecting terminal prongs in a holder
US3502864A (en) * 1968-01-11 1970-03-24 Gen Electric Rim-referencing lamp-holder and projection lamp with reflector
US3547530A (en) * 1968-11-12 1970-12-15 Bell Telephone Labor Inc Overhead projector

Also Published As

Publication number Publication date
DE7206153U (de) 1972-05-31
US3761170A (en) 1973-09-25
FR2125970A5 (en:Method) 1972-09-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee