US1992196A - Lighting fixture - Google Patents

Lighting fixture Download PDF

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Publication number
US1992196A
US1992196A US711086A US71108634A US1992196A US 1992196 A US1992196 A US 1992196A US 711086 A US711086 A US 711086A US 71108634 A US71108634 A US 71108634A US 1992196 A US1992196 A US 1992196A
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United States
Prior art keywords
reflector
light
globe
dome
lighting fixture
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 - Lifetime
Application number
US711086A
Inventor
Samuel S Dauman
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Individual
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Individual
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Publication date
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Priority to US711086A priority Critical patent/US1992196A/en
Application granted granted Critical
Publication of US1992196A publication Critical patent/US1992196A/en
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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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/102—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using gravity or suction
    • 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
    • F21V7/0008—Reflectors for light sources providing for indirect lighting
    • F21V7/0016—Reflectors for light sources providing for indirect lighting on lighting devices that also provide for direct lighting, e.g. by means of independent light sources, by splitting of the light beam, by switching between both lighting modes
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source

Definitions

  • the present invention relates broadly lto.
  • the device comprises a supportingmember for an electric incandescent light and wherein the incandescent light is enclosed within a reflecting dome preferably of metal and preferably having an aluminum satin or sand blasted surface.
  • This reflecting memb er is adapted to carry a diffusion translucent or transparent globe through light and also the direct light'from the incandescent lamp maypass.
  • the globe is provided with a bead or shoulder or other positioning device to support and position a' ring-like reflector to throw a portion of the light upwardly.
  • This reflector is supported on the ⁇ diffusion globe part way down on the globe so as to provide an annular zone through which light rays may pass to strike i the inner surface of the reflector and be directed upwardly.
  • This reflector preferably comprises a metallic ring and may be provided with a curved surface of such form as to diffuse the lightstriking the surface, whereby this annular ring reflects the light upwardly over a large area.
  • the fixture is of such construction as to substantially enclose the electric light in a dustproof chamber and any dust that may collect between the ring reflector and the globe may be easily removed by simply lifting the reflector ring ⁇ from its seat on the terior of the globe.v
  • Fig. 1 illustrates a cross-section through appreferred form of the invention.
  • Fig. 2 shows an elevational view ofv the device shown in section in Fig. 1.
  • the device comprises primarily a supporting member 1 whichv carries a dome-like reflector 2.
  • This reflector may comprise a single piece of material as is shown in my Patent No. 1,939,956 or globe and cleaning the exe may be supported by a small cup-like member 4V as I have specifically illustrated herewith.
  • This reflector preferably is provided with an inner surface of satin finish or sand blasted aluminum so amount of the light upwhich the reflected as to produce a brilliant diffusion-effect.
  • An electric light socket 5 is sup# vvported' within vtheupperportion of the dome member and carries an electric lamp 6. This lamp is fed by suitable circuit connections such as the electric wires '7.
  • This diffusion globe l5 is preferably provided with a bead or shoulder 16 upon which an annular ring reflector 17 is adapted to be seatecL
  • This ring reflector in its preferred form, comprises a metallic ner surface 18 of sand blasted or satin aluminum finish so as to provider a brilliant reflector for all light striking the reflector ring.
  • This ring sets ⁇ loosely On the bead 16 so that the matter of eX- pansion and contraction due to the heat of the lamp or otherwise doesnot seriously affect the relation of the parts.
  • This reflector preferably is provided with a wire edge or rolled rim 19 in order to stiffen the edge the reflector is of a double curvature, so that the light rays striking the reflector surface 18 are reflected over a relatively large area.
  • dome reflector 2 is pro- ⁇ member having an inof the samev and preferably ⁇ ⁇
  • the main effect of the fixture is to direct a cone of intense light rays downwardly and to direct fused light in an'upward direction.
  • the present invention may be .used for most a very difindoor lighting and is particularly effective for store lighting, wherein a soft glow is provided at the ceiling with themajorityof the intense light ,directed downwardly upon the goods on counters.
  • a lighting fixture comprising in combination a suspension member, a reflecting dome supported byV said suspension member, a receptacle for an electric light mounted within said reflecting dome and adapted to support an electric light within said dome, a translucent diffusion globe carried by said reflecting dome, said globehaving an outwardly flared portion extending away from the lower edge of said dome, a supporting ledge on said diffusion globe ⁇ and adjacent the lower extremity of said outwardly flared portion, said supporting ledge being spaced from said reflecting dome to provide an annular zone between said dome and said supporting ledge on saiddiffusion globe for transmissionof light rays, and an annular ring reflecting member extending outwardly and upwardly from said diffusion globe and resting on said supporting ledge, and adapted to reflect in an upward direction, light rays transmitted through said annular Zone of the diffusion globe, said ledge comprising the sole support for said reflector.

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

Description

Feb. 26, 1935. s. s. DAUMAN 1,992,196v
LIGHTING FIXTURE Filed Feb. 14, 1934 l NV ENTOR /lfauvizmz Patented Feb. 26, 1935 UNITED STATES PATENT oFFiCE 1,992,196 n LIGHTING FIXTURE Y Samuel S. Dauman, `New York, N. Y. Application February 14, 1934, sei-iai No. 711,086
' 1 claim. (01240-78) The present invention relates broadly lto. the
art of illumination and more especially to a light-y above the fixture.`
In the preferred form, the device comprises a supportingmember for an electric incandescent light and wherein the incandescent light is enclosed within a reflecting dome preferably of metal and preferably having an aluminum satin or sand blasted surface. This reflecting memb er is adapted to carry a diffusion translucent or transparent globe through light and also the direct light'from the incandescent lamp maypass. The globe is provided with a bead or shoulder or other positioning device to support and position a' ring-like reflector to throw a portion of the light upwardly. This reflector is supported on the` diffusion globe part way down on the globe so as to provide an annular zone through which light rays may pass to strike i the inner surface of the reflector and be directed upwardly. This reflector preferably comprises a metallic ring and may be provided with a curved surface of such form as to diffuse the lightstriking the surface, whereby this annular ring reflects the light upwardly over a large area.
The fixture is of such construction as to substantially enclose the electric light in a dustproof chamber and any dust that may collect between the ring reflector and the globe may be easily removed by simply lifting the reflector ring` from its seat on the terior of the globe.v
Fig. 1 illustrates a cross-section through appreferred form of the invention.
Fig. 2 shows an elevational view ofv the device shown in section in Fig. 1.
The device comprises primarily a supporting member 1 whichv carries a dome-like reflector 2. -This reflector may comprise a single piece of material as is shown in my Patent No. 1,939,956 or globe and cleaning the exe may be supported by a small cup-like member 4V as I have specifically illustrated herewith. This reflector preferably is provided with an inner surface of satin finish or sand blasted aluminum so amount of the light upwhich the reflected as to produce a brilliant diffusion-effect. An electric light socket 5 is sup# vvported' within vtheupperportion of the dome member and carries an electric lamp 6. This lamp is fed by suitable circuit connections such as the electric wires '7.
The lower edge lof the vided'with a flange 11 adapted to carry lclamp screws 12 which engage an inturned rim 14 on a diffusion globe 15. This diffusion globe l5 is preferably provided with a bead or shoulder 16 upon which an annular ring reflector 17 is adapted to be seatecL This ring reflector, in its preferred form, comprises a metallic ner surface 18 of sand blasted or satin aluminum finish so as to provider a brilliant reflector for all light striking the reflector ring. This ring sets `loosely On the bead 16 so that the matter of eX- pansion and contraction due to the heat of the lamp or otherwise doesnot seriously affect the relation of the parts.' This reflector preferably is provided with a wire edge or rolled rim 19 in order to stiffen the edge the reflector is of a double curvature, so that the light rays striking the reflector surface 18 are reflected over a relatively large area.
reflector with a .soft
dome reflector 2 is pro-` member having an inof the samev and preferably` `The main effect of the fixture is to direct a cone of intense light rays downwardly and to direct fused light in an'upward direction.` Y
The present invention may be .used for most a very difindoor lighting and is particularly effective for store lighting, wherein a soft glow is provided at the ceiling with themajorityof the intense light ,directed downwardly upon the goods on counters.
What I claim is:
A lighting fixture comprising in combination a suspension member, a reflecting dome supported byV said suspension member, a receptacle for an electric light mounted within said reflecting dome and adapted to support an electric light within said dome, a translucent diffusion globe carried by said reflecting dome, said globehaving an outwardly flared portion extending away from the lower edge of said dome, a supporting ledge on said diffusion globe `and adjacent the lower extremity of said outwardly flared portion, said supporting ledge being spaced from said reflecting dome to provide an annular zone between said dome and said supporting ledge on saiddiffusion globe for transmissionof light rays, and an annular ring reflecting member extending outwardly and upwardly from said diffusion globe and resting on said supporting ledge, and adapted to reflect in an upward direction, light rays transmitted through said annular Zone of the diffusion globe, said ledge comprising the sole support for said reflector. p
' 1 1 SAMUEL S. DAUMAN.
US711086A 1934-02-14 1934-02-14 Lighting fixture Expired - Lifetime US1992196A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1724521A3 (en) * 2005-05-16 2007-01-03 FAEL S.p.A. Lighting apparatus with seal arranged between reflector and refractor
US7229191B1 (en) 2004-06-07 2007-06-12 Genlyte Thomas Group Llc Industrial up light reflector
US20190093857A1 (en) * 2017-09-26 2019-03-28 Dialight Corporation Diffuser with uplight

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7229191B1 (en) 2004-06-07 2007-06-12 Genlyte Thomas Group Llc Industrial up light reflector
EP1724521A3 (en) * 2005-05-16 2007-01-03 FAEL S.p.A. Lighting apparatus with seal arranged between reflector and refractor
US20190093857A1 (en) * 2017-09-26 2019-03-28 Dialight Corporation Diffuser with uplight
US10443814B2 (en) * 2017-09-26 2019-10-15 Dialight Corporation Diffuser with uplight

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