GB404104A - Improvements in or relating to cinema lamp reflectors - Google Patents

Improvements in or relating to cinema lamp reflectors

Info

Publication number
GB404104A
GB404104A GB2824732A GB2824732A GB404104A GB 404104 A GB404104 A GB 404104A GB 2824732 A GB2824732 A GB 2824732A GB 2824732 A GB2824732 A GB 2824732A GB 404104 A GB404104 A GB 404104A
Authority
GB
United Kingdom
Prior art keywords
per cent
relating
lamp reflectors
cinema lamp
cinema
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
GB2824732A
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.)
THOMAS ERNEST COLEBOURNE
THOMAS FREDERICK PARKER
Original Assignee
THOMAS ERNEST COLEBOURNE
THOMAS FREDERICK PARKER
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 THOMAS ERNEST COLEBOURNE, THOMAS FREDERICK PARKER filed Critical THOMAS ERNEST COLEBOURNE
Priority to GB2824732A priority Critical patent/GB404104A/en
Publication of GB404104A publication Critical patent/GB404104A/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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

A reflector is made of stainless steel containing 71 per cent of iron, 18 per cent of chromium, 8 per cent of nickel, 0.65 per cent of tungsten, 0.6 per cent of silica, 0.57 per cent of titanium, 0.3 per cent of manganese, and 0.12 per cent of carbon.
GB2824732A 1932-10-11 1932-10-11 Improvements in or relating to cinema lamp reflectors Expired GB404104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2824732A GB404104A (en) 1932-10-11 1932-10-11 Improvements in or relating to cinema lamp reflectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2824732A GB404104A (en) 1932-10-11 1932-10-11 Improvements in or relating to cinema lamp reflectors

Publications (1)

Publication Number Publication Date
GB404104A true GB404104A (en) 1934-01-11

Family

ID=10272653

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2824732A Expired GB404104A (en) 1932-10-11 1932-10-11 Improvements in or relating to cinema lamp reflectors

Country Status (1)

Country Link
GB (1) GB404104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914989A (en) * 1953-10-08 1959-12-01 Gretener Edgar Reflector
US3598482A (en) * 1967-03-06 1971-08-10 Wendell S Miller Optical projection system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2914989A (en) * 1953-10-08 1959-12-01 Gretener Edgar Reflector
US3598482A (en) * 1967-03-06 1971-08-10 Wendell S Miller Optical projection system

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