IE45659B1 - Improvements in or relating to optical projectors - Google Patents

Improvements in or relating to optical projectors

Info

Publication number
IE45659B1
IE45659B1 IE1726/77A IE172677A IE45659B1 IE 45659 B1 IE45659 B1 IE 45659B1 IE 1726/77 A IE1726/77 A IE 1726/77A IE 172677 A IE172677 A IE 172677A IE 45659 B1 IE45659 B1 IE 45659B1
Authority
IE
Ireland
Prior art keywords
housing
projector
lamp
projection lamp
aperture
Prior art date
Application number
IE1726/77A
Other languages
English (en)
Other versions
IE45659L (en
Original Assignee
Rollei Werke Franke Heidecke
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 by Rollei Werke Franke Heidecke filed Critical Rollei Werke Franke Heidecke
Publication of IE45659L publication Critical patent/IE45659L/xx
Publication of IE45659B1 publication Critical patent/IE45659B1/en

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
    • 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
    • G03B21/16—Cooling; Preventing overheating

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
IE1726/77A 1976-09-08 1977-08-18 Improvements in or relating to optical projectors IE45659B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE7628047U DE7628047U1 (de) 1976-09-08 1976-09-08 Stehbildprojektor

Publications (2)

Publication Number Publication Date
IE45659L IE45659L (en) 1978-03-08
IE45659B1 true IE45659B1 (en) 1982-10-20

Family

ID=6669007

Family Applications (1)

Application Number Title Priority Date Filing Date
IE1726/77A IE45659B1 (en) 1976-09-08 1977-08-18 Improvements in or relating to optical projectors

Country Status (6)

Country Link
US (1) US4127323A (https=)
BE (1) BE858499A (https=)
DE (1) DE7628047U1 (https=)
FR (1) FR2364482A1 (https=)
GB (1) GB1539337A (https=)
IE (1) IE45659B1 (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW500968B (en) * 2002-02-08 2002-09-01 Benq Corp Structure for replaceably assembling a lamp to an image output device
JP2010256835A (ja) * 2009-04-28 2010-11-11 Sanyo Electric Co Ltd フィルタ部材及びこれを備えた投写型映像表示装置
CN105842967B (zh) * 2015-01-12 2018-03-02 信泰光学(深圳)有限公司 微投影机

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE862558C (de) * 1943-04-04 1953-01-12 Bauer Eugen Gmbh Kofferkino mit leicht loesbar befestigtem Lampenhaus
US3114286A (en) * 1960-05-27 1963-12-17 Minnesota Mining & Mfg Slide transfer mechanism
US3130637A (en) * 1961-05-22 1964-04-28 Sawyers Inc Slide projector
NL136342C (https=) * 1968-03-07
DE7323841U (de) * 1973-06-23 1973-11-22 Ritzerfeld G Tageslicht-projektionsgeraet
DE2339258A1 (de) * 1973-08-02 1975-02-13 Braun Ag Vorrichtung zum wechseln von lampen des beleuchtungssystems von projektionsgeraeten
US3914645A (en) * 1974-07-12 1975-10-21 Educational & Commercial Avcom Multiple lamp unit for protection

Also Published As

Publication number Publication date
FR2364482B1 (https=) 1983-04-22
US4127323A (en) 1978-11-28
GB1539337A (en) 1979-01-31
FR2364482A1 (fr) 1978-04-07
DE7628047U1 (de) 1976-12-30
IE45659L (en) 1978-03-08
BE858499A (fr) 1978-01-02

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