GB321248A - Improvements in or relating to light projectors - Google Patents

Improvements in or relating to light projectors

Info

Publication number
GB321248A
GB321248A GB2375628A GB2375628A GB321248A GB 321248 A GB321248 A GB 321248A GB 2375628 A GB2375628 A GB 2375628A GB 2375628 A GB2375628 A GB 2375628A GB 321248 A GB321248 A GB 321248A
Authority
GB
United Kingdom
Prior art keywords
projector
light
fitted
mirrors
carriers
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
GB2375628A
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.)
JOSEPH FRANCIS APPLEFORD
REANDCO Ltd
WALTER SIDNEY VENESS
Original Assignee
JOSEPH FRANCIS APPLEFORD
REANDCO Ltd
WALTER SIDNEY VENESS
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 JOSEPH FRANCIS APPLEFORD, REANDCO Ltd, WALTER SIDNEY VENESS filed Critical JOSEPH FRANCIS APPLEFORD
Priority to GB2375628A priority Critical patent/GB321248A/en
Publication of GB321248A publication Critical patent/GB321248A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/40—Lighting for industrial, commercial, recreational or military use
    • F21W2131/406—Lighting for industrial, commercial, recreational or military use for theatres, stages or film studios

Landscapes

  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

321,248. Reandoo, Ltd., Veness, W. S., and Appleford, J. F. Aug. 17,1928. Projectors. - In a light-projector, particularly for use as a theatre spotlight or for shop-window illumination, in which a source of light 2, with or without a spherical or other reflector 3, is housed within a sheet-metal casing 1 provided with a front opening fitted with a lens 4, the casing 1 is also provided with one or more side openings 6 each fitted with a sleeve 7 for a tubular carrier 8 carrying a lens 9 and a pivoted mirror 12 for varying the direction of the auxiliary beams of light, the carriers 8 being slidahle to vary the divergence of the auxiliary beams and rotatable to provide a further adjustment, of the mirrors. The mirrors are pivoted on arms 11 secured to the carriers 8, and the projector is fitted with holders 5, 10 to receive colour screens, diaphragms, or shutters. The intensity of all the beams may be adjusted simultaneously by means of a dimming resistance, and the projector may be supported by means of a socket 13 attachable to a known device permitting movement of the projector in any desired direction.
GB2375628A 1928-08-17 1928-08-17 Improvements in or relating to light projectors Expired GB321248A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2375628A GB321248A (en) 1928-08-17 1928-08-17 Improvements in or relating to light projectors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2375628A GB321248A (en) 1928-08-17 1928-08-17 Improvements in or relating to light projectors

Publications (1)

Publication Number Publication Date
GB321248A true GB321248A (en) 1929-11-07

Family

ID=10200805

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2375628A Expired GB321248A (en) 1928-08-17 1928-08-17 Improvements in or relating to light projectors

Country Status (1)

Country Link
GB (1) GB321248A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004389A1 (en) * 1986-12-12 1988-06-16 Michael Callahan Apparatus for mechanically adjusting lighting fixture azimuth and elevation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988004389A1 (en) * 1986-12-12 1988-06-16 Michael Callahan Apparatus for mechanically adjusting lighting fixture azimuth and elevation

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