GB583488A - Improvements in optical projectors - Google Patents

Improvements in optical projectors

Info

Publication number
GB583488A
GB583488A GB339544A GB339544A GB583488A GB 583488 A GB583488 A GB 583488A GB 339544 A GB339544 A GB 339544A GB 339544 A GB339544 A GB 339544A GB 583488 A GB583488 A GB 583488A
Authority
GB
United Kingdom
Prior art keywords
projector
housing
edge
optical projectors
strips
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
GB339544A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ALBERT FREDERICK WOOD
BRITISH SOLENOIDS Ltd
Original Assignee
ALBERT FREDERICK WOOD
BRITISH SOLENOIDS Ltd
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 ALBERT FREDERICK WOOD, BRITISH SOLENOIDS Ltd filed Critical ALBERT FREDERICK WOOD
Priority to GB339544A priority Critical patent/GB583488A/en
Publication of GB583488A publication Critical patent/GB583488A/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
    • G03B21/18—Fire preventing or extinguishing

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Projection Apparatus (AREA)

Abstract

583,488. Opticalprojection apparatus. WOOD, A. F., and BRITISH SOLENOIDS, Ltd. Feb. 23, 1944, No. 3395. [Class 97 (i)] A projector for use with film strips bearing "still " pictures is provided with a screen formed of a number of strips 125 of heatabsorbing glass mounted edge to edge behind the gate. The projector may include a housing 12 for the illuminant, forming a space for circulation of air between itself and the body 1, and the reflector 121 and first condenser lens may be mounted on this housing.
GB339544A 1944-02-23 1944-02-23 Improvements in optical projectors Expired GB583488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB339544A GB583488A (en) 1944-02-23 1944-02-23 Improvements in optical projectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB339544A GB583488A (en) 1944-02-23 1944-02-23 Improvements in optical projectors

Publications (1)

Publication Number Publication Date
GB583488A true GB583488A (en) 1946-12-19

Family

ID=9757528

Family Applications (1)

Application Number Title Priority Date Filing Date
GB339544A Expired GB583488A (en) 1944-02-23 1944-02-23 Improvements in optical projectors

Country Status (1)

Country Link
GB (1) GB583488A (en)

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