US1562186A - Attachment for reflectors - Google Patents

Attachment for reflectors Download PDF

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Publication number
US1562186A
US1562186A US502440A US50244021A US1562186A US 1562186 A US1562186 A US 1562186A US 502440 A US502440 A US 502440A US 50244021 A US50244021 A US 50244021A US 1562186 A US1562186 A US 1562186A
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United States
Prior art keywords
reflector
flange
light
reflectors
attachment
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Expired - Lifetime
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US502440A
Inventor
Edwin H Powell
Albert R Homer
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Individual
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Priority to US502440A priority Critical patent/US1562186A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/162—Incandescent light sources, e.g. filament or halogen lamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/321—Optical layout thereof the reflector being a surface of revolution or a planar surface, e.g. truncated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/323—Optical layout thereof the reflector having two perpendicular cross sections having regular geometrical curves of a distinct nature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/32—Optical layout thereof
    • F21S41/36—Combinations of two or more separate reflectors
    • F21S41/365—Combinations of two or more separate reflectors successively reflecting the light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/30—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by reflectors
    • F21S41/39—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/43—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades characterised by the shape thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/40—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by screens, non-reflecting members, light-shielding members or fixed shades
    • F21S41/47—Attachment thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F21S43/31—Optical layout thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/19—Attachment of light sources or lamp holders
    • F21S41/194—Bayonet attachments
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2113/00—Combination of light sources
    • F21Y2113/20—Combination of light sources of different form

Definitions

  • the present invention relates to a device which is intended and adapted to be used in connection with a reflector, more particularly of the type which is at present in common use with headlights for automobiles and similar vehicles.
  • Fig. 1 is a frontelevation of the device attached to a reflector of usual form for headlights;
  • Fig. 2 is a sectional elevation;
  • Fig. 3 is a bottom plan view of the device and
  • Fig. 4 is a perspective view.
  • 1 indicates a reflector of usual construction which as is well known has, substantially, the surface of a paraboloid. At the center portion of the reflector there is an opening which receives a lamp socket 2 in which socket is placed a small electric bulb 3.
  • the outer edge of the reflector proper is formed with the outwardly extending flange 4 which on the one surface thereof cooperates with the glass front or lens 5 of the headlight and the other surface of the flange 4 rests against the forward edge of the casing, the reflector and glass being secured in the casing of the lamp by means of a head or cap which has I suitable attachment to the casing.
  • the device of the presentinventioncom prises a body which is formed preferably of sheet metal and the'body is formed to have an annular flange portion 6 of substantially uniform width and is formed to flt against the upper portion of the surface of the reflector 1, in other words thejoutside surface of the flange 6 is a portion of a parabolic surface when the reflector such a's l with a which it cooperates 1s a parabolic reflector.
  • formed integrally is a portion 7 having-arounding inner and outer surface and when the device is assembled with respect to the reflector the inner surface of the'pa'rt 7 is oppositely disposed with respect to a portion of the upper surface of the reflector 1 and this.
  • portion 7 extends around and in front of the electric bulb 3 so that there is substantially no direct light from the bulb 3 which can pass beyond the portion 7.
  • the line on V which the edge of this curved portion 7 meets with the surface of the reflector proper is substantially a semi-circle.
  • the curvature given to the inner surface of the portion 7 is such that when the device is associated with a reflector such as'l in the manner indicated in Figs. 1 and 2, that portion of the light, which is reflected by the reflector 1 against the surface of the portion 7 will be again reflected against the reflector 1 with the result that the rays'of light projected from the headlight will be directed downwardly below a line coincident the device of the present invention were omitted.
  • tion 7 is silvered or otherwise madehighly reflecting in the same manner as is customary with reflectors.
  • extending clips 8 are provided, having bent over portions 8*, and these bent over portions are adapted to be bent around the flange 4 of the reflector 1
  • the glass or lens 5 is positioned and held in position by the removable head of the headlight, the glass Will be firmly pressed against the tangs 8 and thus hold them against any movement.
  • the flange 6 is provided with an opening 9 which is adapted to permit passage of the socket for a dimmer lamp 10 Where the same is used.
  • the device is preferably made of a stamping of light sheet metal, thus being possible of production at a low cost and it serves to effectively prevent the glare of head lamps Without any appreciable diminution of the light projected by the head light.

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

Description

E. H. POWELL ET AL A rncnuafi'r FOR ampmcwons Nov. 17, 1925'.
Filed Spt. 22, .1921
Patented Nov. 17, 1925.
UNITED STATES PATENT,OFIFICEQ'I 'EDWIN H. YOWEL AND ALBERT RQHQMER, or CLEVELAND HEIGHTS, 011mg i armonivrnnrron nnrrncroas.
Application filed September 22, 1921; Serial No. 502,440.
To all whom it may concern:
Be it known that we, EDWIN'H. POWELL and ALBERT R. HOMER, citizens of the United States, and residents of Cleveland Heights, in the county of Cuyahoga and State of Ohio, have'invented a certain new and useful Improvement in an Attachment'for Reflectors, of which the following is a full, clear,.: and exact description. y
The present invention relates to a device which is intended and adapted to be used in connection with a reflector, more particularly of the type which is at present in common use with headlights for automobiles and similar vehicles.
@ serve that brilliancy from the light which is usually known as a glare.
Reference should be had to the acco1n panying drawings forming a part of this specification in which Fig. 1 is a frontelevation of the device attached to a reflector of usual form for headlights; Fig. 2 is a sectional elevation; Fig. 3 is a bottom plan view of the device and Fig. 4 is a perspective view.
In the present drawing and specification, the usual casing for a headlight which car ries the reflector proper, is omitted inasmuch as this construction is very well known and forms no part of the present invention.
Referring to the drawings, 1 indicates a reflector of usual construction which as is well known has, substantially, the surface of a paraboloid. At the center portion of the reflector there is an opening which receives a lamp socket 2 in which socket is placed a small electric bulb 3. The outer edge of the reflector proper is formed with the outwardly extending flange 4 which on the one surface thereof cooperates with the glass front or lens 5 of the headlight and the other surface of the flange 4 rests against the forward edge of the casing, the reflector and glass being secured in the casing of the lamp by means of a head or cap which has I suitable attachment to the casing. con.-
struction referred to being old is not shown in the drawings. i i i V The device of the presentinventioncom prises a body which is formed preferably of sheet metal and the'body is formed to have an annular flange portion 6 of substantially uniform width and is formed to flt against the upper portion of the surface of the reflector 1, in other words thejoutside surface of the flange 6 is a portion of a parabolic surface when the reflector such a's l with a which it cooperates 1s a parabolic reflector.
, At the inneredge of theflange 6, and
preferably, as before'stated, formed integrally is a portion 7 having-arounding inner and outer surface and when the device is assembled with respect to the reflector the inner surface of the'pa'rt 7 is oppositely disposed with respect to a portion of the upper surface of the reflector 1 and this.
portion 7 extends around and in front of the electric bulb 3 so that there is substantially no direct light from the bulb 3 which can pass beyond the portion 7. The line on V which the edge of this curved portion 7 meets with the surface of the reflector proper is substantially a semi-circle.
The curvature given to the inner surface of the portion 7 is such that when the device is associated with a reflector such as'l in the manner indicated in Figs. 1 and 2, that portion of the light, which is reflected by the reflector 1 against the surface of the portion 7 will be again reflected against the reflector 1 with the result that the rays'of light projected from the headlight will be directed downwardly below a line coincident the device of the present invention were omitted.
For the purpose of obtaining better reflecting effects the inner surface of the pore; tion 7 is silvered or otherwise madehighly reflecting in the same manner as is customary with reflectors.
within the reflector 1. extending clips 8 are provided, having bent over portions 8*, and these bent over portions are adapted to be bent around the flange 4 of the reflector 1 For the purpos of retaining the device hen the glass or lens 5 is positioned and held in position by the removable head of the headlight, the glass Will be firmly pressed against the tangs 8 and thus hold them against any movement.
The flange 6 is provided with an opening 9 which is adapted to permit passage of the socket for a dimmer lamp 10 Where the same is used. I 7
It has been found very desirable to provide the inner surface of the flange 6 and the outer surface of the portions 7 With a polished or silvered surface because as is obvious some light from the lower portion of the headlight will enter the upper portion thereof outside the light obstructing member. This is not a great quantity of light but by providing a polished surface .for reflecting thesame, it projects a soft ened dimmer lightso that the upper part of the headlight is not dark but is partly illuminated.
Additionally, Where a dimmer lamp is used, by polishing or silvcring the inner surface of the flange 6 and outer surface of the portion 7, a reflecting surface is formed Which cooperates With the dimmer lamp.
As before stated, the device is preferably made of a stamping of light sheet metal, thus being possible of production at a low cost and it serves to effectively prevent the glare of head lamps Without any appreciable diminution of the light projected by the head light.
Having described our invention, We claim:
The combination with a reflector having a curved surface and provided With an outer rim and alamp centrally disposed therein, of a member having a flange portion which engages with a portion of the surface of the reflector and clips formed by spaced hook shaped tongues integral with the flange, said clips projecting outwardly from the outer edge of the flange and adapted to engage with the rim of the reflector to detachably secure said member thereto, said member alsohaving a portion With a curved surface which extends transversely between opposite allportions of the reflector and in front of said lamp. v
In testimony whereof, We hereunto aflix our signatures.
EDWTN H. POWELL. ALBERT R. HOMER.
US502440A 1921-09-22 1921-09-22 Attachment for reflectors Expired - Lifetime US1562186A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783725A (en) * 1987-08-24 1988-11-08 Rayovac Flashlight with space efficient reflector
US5921662A (en) * 1995-04-02 1999-07-13 Bruckner; Attila Anton Adapter for general-diffuse miniature reflectors
US20020196641A1 (en) * 2001-06-26 2002-12-26 Norbert Brun Lighting or indicating device for a motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4783725A (en) * 1987-08-24 1988-11-08 Rayovac Flashlight with space efficient reflector
US5921662A (en) * 1995-04-02 1999-07-13 Bruckner; Attila Anton Adapter for general-diffuse miniature reflectors
US20020196641A1 (en) * 2001-06-26 2002-12-26 Norbert Brun Lighting or indicating device for a motor vehicle
US6857769B2 (en) * 2001-06-26 2005-02-22 Valeo Vision Lighting or indicating device for a motor vehicle

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