US1295778A - Lighting-fixture. - Google Patents

Lighting-fixture. Download PDF

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Publication number
US1295778A
US1295778A US17577617A US17577617A US1295778A US 1295778 A US1295778 A US 1295778A US 17577617 A US17577617 A US 17577617A US 17577617 A US17577617 A US 17577617A US 1295778 A US1295778 A US 1295778A
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United States
Prior art keywords
ring
fixture
reflector
light
rays
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Expired - Lifetime
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US17577617A
Inventor
Earle C Mckinnie
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.)
NATIONAL X-RAY REFLECTOR Co
NAT X RAY REFLECTOR CO
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NAT X RAY REFLECTOR CO
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Application filed by NAT X RAY REFLECTOR CO filed Critical NAT X RAY REFLECTOR CO
Priority to US17577617A priority Critical patent/US1295778A/en
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Publication of US1295778A publication Critical patent/US1295778A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/09—Optical design with a combination of different curvatures

Definitions

  • My invention relates to that class of fixtures which are termed semi-indirect, and has for its object to provide means to reflect and diffuse some of the direct light rays and illuminate a bowl surroundingthe reflector, which reflects the light rays to the ceilin in this manner, highly increasing the eflectlveness and enhancing the appearance of the fixture as a whole.
  • igure 1 is a vertical sectional view of a fixture embodying my invention.
  • Fig. 2. is a modified form of the same.
  • my fixture consists of a difluser ring 3, formed of opal glass and so shaped. as toreceive the direct light rays from the electric light bulb 4, and reflect them in a diflused manner.
  • this ring 3 is supported by an annular member 5, which is hung from the ceiling by chains 6, secured to a' canopy 7, of the usual con struction.
  • the member 5, supports a bowl 8, of translucent glass. which surrounds the diffuser ring 3, and a reflector 9, which is carried by the difluser rin 3, and is designed to reflect the rays 0 light from the bulb 4, upwardly to the ceiling whence they are redirected to the working plane. It may be found desirable in some instances to construct the diffuser ring, as shown in Fig. 2
  • Wher the reflector 9 is made of glass, it ma in some cases be expedient to blow the di user ring integral with it, in which case it would not be sllvered beyond the point where it joins the diffuser ring. In some cases it may be desirable to omit the annular memher 5, and support the fixture from the diffuser member, thus producing an all glass fixture.
  • a semi indirect lighting fixture comprising the combination with a source of light, of a reflector adapted to direct the light rays upwardly against the ceiling, a difluser ring of. lass supporting said reflector, said ring eing shaped so as to reflect a portion of the direct rays of light downwardly and diffuse them, an annular member which supports'said difl'user ring, and a translucent glass bowl carried by said member, said bowl surrounding the diffuser ring and reflector.
  • a semi indirect lighting fixture comprising the combination with a source of light, of a reflector adapted to direct the light rays upwardly against the ceiling, a diffuser ring of glass supporting said reflector and formed integral therewith, said ring being shaped so as to reflect a portion of the direct rays of light downwardly and difiuse them, an annular member which supports said difl'user ring, and a translucent glass bowl carried by said member, said bowl surrounding the difl'user ring and reflector.
  • fixture coma source of light, of a reflector adapted to direct the diffuse them, a translucent bowl surroundlight rays upwardlyegainst the ceiling, a in the diffuser ring and reflector.

Description

- E. c. Mc KINNIE.
LIGHTING FIXTURE. APPLICATION FILE D JUNE 20.1917.
1,295,778. Patented Feb. 25, 1919. I
G. mcmm, OF CHICAGO, ILLINOIS, ASSIGNOR TO NATIONAL x-RAY REFLECTOR (20., OF CHICAGO, ILLINOIS, A. CORPORATION OF ILLINOIS.
LIGHTIN useful Improvement in Lighting-Fixtures,
of which the following is a specification.
My invention relates to that class of fixtures which are termed semi-indirect, and has for its object to provide means to reflect and diffuse some of the direct light rays and illuminate a bowl surroundingthe reflector, which reflects the light rays to the ceilin in this manner, highly increasing the eflectlveness and enhancing the appearance of the fixture as a whole.
My means of accomplishing the foregoing objects, may be more readily understood by having reference to the accompanying drawings, which are hereunto annexed and are a art of this specification, in which:
igure 1 is a vertical sectional view of a fixture embodying my invention.
Fig. 2. is a modified form of the same.
Similar reference numerals refer to similar parts throughout the entire description.
As' shown in Fig. 1, my fixture consists of a difluser ring 3, formed of opal glass and so shaped. as toreceive the direct light rays from the electric light bulb 4, and reflect them in a diflused manner. As clearly shown by the lines in said fi this ring 3 is supported by an annular member 5, which is hung from the ceiling by chains 6, secured to a' canopy 7, of the usual con struction. The member 5, supports a bowl 8, of translucent glass. which surrounds the diffuser ring 3, and a reflector 9, which is carried by the difluser rin 3, and is designed to reflect the rays 0 light from the bulb 4, upwardly to the ceiling whence they are redirected to the working plane. It may be found desirable in some instances to construct the diffuser ring, as shown in Fig. 2
in which it is provided with an inner wall 12 of opal glass and an outer wall 13, which may be vertical or slightly flaring and which has a mirrored surface adapted to receive the difiused light rays and reflect them upon Specification of Letters Patent.
Application filed J'une 20, 1917. Serial No. 175,776.
the bowl 8, and thus illuminate it. Wher the reflector 9, is made of glass, it ma in some cases be expedient to blow the di user ring integral with it, in which case it would not be sllvered beyond the point where it joins the diffuser ring. In some cases it may be desirable to omit the annular memher 5, and support the fixture from the diffuser member, thus producing an all glass fixture.
Having described my invention what I regard as new and desire to secure by Letters atent is: r
1. A semi indirect lighting fixture comprising the combination with a source of light, of a reflector adapted to direct the light rays upwardly against the ceiling, a difluser ring of. lass supporting said reflector, said ring eing shaped so as to reflect a portion of the direct rays of light downwardly and diffuse them, an annular member which supports'said difl'user ring, and a translucent glass bowl carried by said member, said bowl surrounding the diffuser ring and reflector.
2. A semi indirect lighting fixture comprising the combination with a source of light, of a reflector adapted to direct the light rays upwardly against the ceiling, a diffuser ring of glass supporting said reflector and formed integral therewith, said ring being shaped so as to reflect a portion of the direct rays of light downwardly and difiuse them, an annular member which supports said difl'user ring, and a translucent glass bowl carried by said member, said bowl surrounding the difl'user ring and reflector.
fixture coma source of light, of a reflector adapted to direct the diffuse them, a translucent bowl surroundlight rays upwardlyegainst the ceiling, a in the diffuser ring and reflector. dlfi'user ring of glass supporting said re- 11 testimony whereof, I have signed the flector, and formed integral therewith, said foregoing specification.
5 ring being shaped so as to reflect a portion of the direct rays of light downwardly and EARLE C. MCKINNIE.
US17577617A 1917-06-20 1917-06-20 Lighting-fixture. Expired - Lifetime US1295778A (en)

Priority Applications (1)

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US17577617A US1295778A (en) 1917-06-20 1917-06-20 Lighting-fixture.

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US17577617A US1295778A (en) 1917-06-20 1917-06-20 Lighting-fixture.

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US1295778A true US1295778A (en) 1919-02-25

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