SE306433B - - Google Patents

Info

Publication number
SE306433B
SE306433B SE11070/66A SE1107066A SE306433B SE 306433 B SE306433 B SE 306433B SE 11070/66 A SE11070/66 A SE 11070/66A SE 1107066 A SE1107066 A SE 1107066A SE 306433 B SE306433 B SE 306433B
Authority
SE
Sweden
Application number
SE11070/66A
Inventor
C Ashcraft
Original Assignee
Ashcraft C Mfg Co Inc
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 Ashcraft C Mfg Co Inc filed Critical Ashcraft C Mfg Co Inc
Publication of SE306433B publication Critical patent/SE306433B/xx

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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)
SE11070/66A 1965-11-01 1966-08-16 SE306433B (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514439A US3308715A (en) 1965-11-01 1965-11-01 Projection system and equipment

Publications (1)

Publication Number Publication Date
SE306433B true SE306433B (fr) 1968-11-25

Family

ID=24047136

Family Applications (1)

Application Number Title Priority Date Filing Date
SE11070/66A SE306433B (fr) 1965-11-01 1966-08-16

Country Status (5)

Country Link
US (1) US3308715A (fr)
CH (1) CH462497A (fr)
DE (1) DE1547114A1 (fr)
NL (1) NL6607787A (fr)
SE (1) SE306433B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3381575A (en) * 1965-12-03 1968-05-07 Sylvania Electric Prod Electric projection lamp
GB1290438A (fr) * 1970-04-10 1972-09-27
US3806236A (en) * 1972-02-28 1974-04-23 Gen Electric High intensity projection lamp assembly with heat shield
US3979160A (en) * 1975-03-03 1976-09-07 Minnesota Mining And Manufacturing Company Compact overhead projector
US4596451A (en) * 1983-06-23 1986-06-24 Marks Alvin M Crystal pre-polarizer for 3D projection system
US7036941B2 (en) * 2003-01-14 2006-05-02 Seiko Epson Corporation Illumination optical device and projector

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1275120A (en) * 1914-08-06 1918-08-06 Edwin C Ballman Projecting apparatus.
US1282224A (en) * 1918-07-26 1918-10-22 Robert M H Heiderich Adjustable light for projection-lanterns.
US1698096A (en) * 1923-07-11 1929-01-08 Robert L Hosmer Projecting apparatus
US1750910A (en) * 1925-03-14 1930-03-18 Bausch & Lomb Projecting apparatus
US1774964A (en) * 1925-07-06 1930-09-02 Gen Electric Electrode for the electric arc
US1763630A (en) * 1928-04-03 1930-06-10 Eastman Kodak Co Photographic printer
US2225035A (en) * 1938-12-31 1940-12-17 Bausch & Lomb Projection apparatus
US2819649A (en) * 1956-02-01 1958-01-14 Eastman Kodak Co Reflecting condenser system for projectors

Also Published As

Publication number Publication date
US3308715A (en) 1967-03-14
DE1547114A1 (de) 1970-01-08
CH462497A (de) 1968-09-15
NL6607787A (fr) 1967-05-02

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