GB296884A - Improvements in and relating to illuminating appliances - Google Patents

Improvements in and relating to illuminating appliances

Info

Publication number
GB296884A
GB296884A GB21895/27A GB2189527A GB296884A GB 296884 A GB296884 A GB 296884A GB 21895/27 A GB21895/27 A GB 21895/27A GB 2189527 A GB2189527 A GB 2189527A GB 296884 A GB296884 A GB 296884A
Authority
GB
United Kingdom
Prior art keywords
carried
prismatic
glass
ceiling
frame
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
GB21895/27A
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.)
Holophane Ltd
Original Assignee
Holophane 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 Holophane Ltd filed Critical Holophane Ltd
Priority to GB21895/27A priority Critical patent/GB296884A/en
Publication of GB296884A publication Critical patent/GB296884A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/02—Lighting devices or systems producing a varying lighting effect changing colors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S10/00—Lighting devices or systems producing a varying lighting effect
    • F21S10/007—Lighting devices or systems producing a varying lighting effect using rotating transparent or colored disks, e.g. gobo wheels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/02—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for adjustment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V31/00—Gas-tight or water-tight arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

296,884. Holophane, Ltd., and Williams, R. G. Aug. 19, 1927. Ceiling and like overhead lamps; wall lamps.- A lamp, for changing colour lighting or other indoor decorative illumination, is let into or secured to a ceiling, wall, or like surface, and the light passes through two or more layers of glass which are moved relatively to one another and have refracting or diffusing prisms or flutes on one or both sides. The relative motion may be rotary or reciprocating and preferably is quite slow. In the form shown in Fig. 1, a prismatic glass 3, carried by a fixed circular frame 1 let into a ceiling 2, is arranged below a second prismatic glass 6 carried by a circular frame 5 adapted to be rotated slowly by the shaft 7 of an electric motor 8. Light sources and colour screens are mounted in the space 10, a safety screen 4 of wire netting is provided, and the whole appliance is closed in to prevent the access of dust to the interior. In the form shown in Fig. 6, a prismatic glass 17 is carried by a fixed rectangular frame 16 and is arranged below a second prismatic glass carried by a rectangular frame 18 adapted to be reciprocated in guides 19 by a rod 21 connected to a crank-disc 20 driven by an electric motor 22 through a worm gear. Alternatively, the frame 18 may be driven by means of a cam or other mechanism. Various constructions of prismatic or fluted glasses are illustrated in the Specification.
GB21895/27A 1927-08-19 1927-08-19 Improvements in and relating to illuminating appliances Expired GB296884A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB21895/27A GB296884A (en) 1927-08-19 1927-08-19 Improvements in and relating to illuminating appliances

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21895/27A GB296884A (en) 1927-08-19 1927-08-19 Improvements in and relating to illuminating appliances

Publications (1)

Publication Number Publication Date
GB296884A true GB296884A (en) 1928-09-13

Family

ID=10170591

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21895/27A Expired GB296884A (en) 1927-08-19 1927-08-19 Improvements in and relating to illuminating appliances

Country Status (1)

Country Link
GB (1) GB296884A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1204159B (en) * 1959-08-18 1965-11-04 Johann Schnibbe Lighting device to achieve changing lighting effects
NL1016991C2 (en) * 2000-12-27 2002-06-28 Kal Fire B V Flame and fire simulation device.
FR2867840A1 (en) * 2004-03-16 2005-09-23 Financ Veron Sofive Soc Shower lighting device for use in bathroom, has case with transparent disk driven in rotation by motor whose output shaft carries light source to generate variable colored light output across disk, and transparent double glass plate
US7659674B2 (en) 1997-08-26 2010-02-09 Philips Solid-State Lighting Solutions, Inc. Wireless lighting control methods and apparatus
US7959320B2 (en) 1999-11-18 2011-06-14 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for generating and modulating white light illumination conditions
EP2809990A4 (en) * 2012-01-31 2015-09-23 Cloud B Inc System for projecting a simulated liquid surface

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1204159B (en) * 1959-08-18 1965-11-04 Johann Schnibbe Lighting device to achieve changing lighting effects
US7659674B2 (en) 1997-08-26 2010-02-09 Philips Solid-State Lighting Solutions, Inc. Wireless lighting control methods and apparatus
US7959320B2 (en) 1999-11-18 2011-06-14 Philips Solid-State Lighting Solutions, Inc. Methods and apparatus for generating and modulating white light illumination conditions
NL1016991C2 (en) * 2000-12-27 2002-06-28 Kal Fire B V Flame and fire simulation device.
EP1225389A1 (en) * 2000-12-27 2002-07-24 Kal-Fire B.V. Apparatus for stimulating flames
FR2867840A1 (en) * 2004-03-16 2005-09-23 Financ Veron Sofive Soc Shower lighting device for use in bathroom, has case with transparent disk driven in rotation by motor whose output shaft carries light source to generate variable colored light output across disk, and transparent double glass plate
EP2809990A4 (en) * 2012-01-31 2015-09-23 Cloud B Inc System for projecting a simulated liquid surface
US9416932B2 (en) 2012-01-31 2016-08-16 Cloud B, Inc. System for projecting a simulated liquid surface
US9739454B2 (en) 2012-01-31 2017-08-22 Cloud B, Inc. System for projecting a simulated liquid surface

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