US2113777A - Lighting construction - Google Patents

Lighting construction Download PDF

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Publication number
US2113777A
US2113777A US44689A US4468935A US2113777A US 2113777 A US2113777 A US 2113777A US 44689 A US44689 A US 44689A US 4468935 A US4468935 A US 4468935A US 2113777 A US2113777 A US 2113777A
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United States
Prior art keywords
reflector
auxiliary reflector
auxiliary
lamp
secured
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
US44689A
Inventor
John H Waterbury
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.)
Benjamin Electric Manufacturing Co
Original Assignee
BENJAMIN ELECTRIC Manufacturing CO
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 BENJAMIN ELECTRIC Manufacturing CO filed Critical BENJAMIN ELECTRIC Manufacturing CO
Priority to US44689A priority Critical patent/US2113777A/en
Application granted granted Critical
Publication of US2113777A publication Critical patent/US2113777A/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
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • 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
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/04—Controlling the distribution of the light emitted by adjustment of elements by movement of reflectors
    • 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
    • F21V17/002—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages with provision for interchangeability, i.e. component parts being especially adapted to be replaced by another part with the same or a different function
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
    • 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 lighting fixtures.
  • One of the objects of my invention is to provide an improved lighting fixture in which a part of the light output of the lamp in a lighting unit 6 is directed to some desired point or upon some desired object within range for the purpose of increasing the intensity of light on such point or object.
  • Figure 1 is an axial sectional view of a lighting fixture
  • Fig. 2 is a perspective view of the auxiliary reflector and mounting
  • Fig. 3 is a section on the line 3-3 of Fig. 2;
  • Fig. 4 is an axial sectional View showing another form embodying my invention.
  • Fig. 5 is a fragmentary view showing stillv another form.
  • the lighting construction shown comprises a concave main reflector l, a socket 2 for supporting a lamp 3 so that the light source lies substantially within this reflector, an auxiliary reflector 4 lying substantially between the light source and the inner surface of the concave reflector, and means for mounting the auxiliary reflector for adjustment about the light source and circumferentially with respect to the concave reflector and for adjustment to vary the angle of light beam projected from the auxiliary reflector with respect to the axis of the concave reflector.
  • the mounting means shown comprises a bracket 5 having means whereby it may be clamped in various adjusted positions along the periphery of the concave reflector.
  • the auxiliary reflector is mounted on the bracket by means ofa support 6 secured to the auxiliary reflector and having an arcuate foot portion 7 adjustably secured to a correspondingly shaped arcuate portion 8 of the bracket by means of a clamping screw 9 and nut l extending through slots in the arcuate portions.
  • the bracket is secured to the rim of the reflector by means of a clamping jaw l I, one end of which has a hinge connection at l2 with the bracket and the other end of which bears against the outside of the reflector. Any suitable clamping screw [3 and nut I 4 may be provided for eifecting the clamping operation.
  • the auxiliary reflector l may be adjusted to direct the light in any direction laterally and in any direction vertically from the point of cut-off of the main reflector l to the axis of the lamp.
  • a combination reflector and baffle may be provided in the form of a plate I5 having an aperture through which the neck of the bulb extends and secured to the neck of the reflector by means of spring clips I5 secured to the plate and snapping into an annular channel formed in the neck of the reflector.
  • auxiliary reflector 4 is hinged at 22 to a finger I! struck downwardly from the plate I5 and that the vertical adjustment of light from the auxiliary reflector is effected by means of a rod I8 secured at one end to the lower edge of the auxiliary reflector and slidable in a sleeve or lug l9 secured to a spring clamp 20 adjustably mounted on the rim of the main reflector.
  • This rod may be held in any desired adjustable position in the sleeve by means of a set screw 2
  • the plate 15 to which the auxiliary reflector is hinged is adjustable circumferentially inside the neck of the reflector, thus permitting the required circumferential adjustment.
  • auxiliary reflector is hinged at 22 to a strap 23 secured to a clamping band 24 which may be clamped about the neck of the bulb.
  • the light from the auxiliary reflector may be adjusted, both circumferentially and vertically.
  • a lighting construction comprising a hood, an annular downwardly opening bowl-like reflector secured to and depending from said hood, a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from the hood and into the reflector, and" an auxiliary reflector mounted so that a substantial portion of it lies between the inner surface of the annular reflector and the light source for directing a beam of light laterally toward the axis of the lamp and underneath the lower annular edge of the annular reflector, said auxiliary reflector be-- ing mounted for swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, the means for mounting the auxiliary reflector comprising a pair of clamping jaws engaging the inner and outer surfaces respectively of the annular reflector.
  • a lighting construction comprising a hood, an annular downwardly opening bowl-like refiector secured to and depending from said hood, a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from the hood and into the reflector, and. an auxiliary reflector mounted so that a substantial portion of it lies between the inner surface of the annular reflector and the light source for directing a beam of light laterally toward the axis of the lamp,
  • said auxiliary reflector being mounted for swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, and means for adjusting said auxiliary reflector to vary the vertical angle of inclination of the beam therefrom, the means for mounting the auxiliary reflector comprising a pair of clamping jaws engaging the inner and outer surfaces respectively of the annular reflector.

Description

April 12, 1938. J. H. WATERBURY LIGHTING CONSTRUCTION Filed 001;. 12, 1935 2 Sheets-Sheet l April 1938- J. H. WATERBURY LIGHTING CONSTRUCTION I 2 Sheets-Sheet 2 Filed Oct. 12, 1935 Patented Apr. 12, 1938 UN ETED STATES LIGHTING CONSTRUCTION John H. Waterbury, Chicago, 111.,
assignor to Benjamin Electric Mfg. Company, Des Plaines, 111., a corporation of Illinois Application October 12, 1935, Serial No. 44,689
2 Claims.
My invention relates to lighting fixtures.
One of the objects of my invention is to provide an improved lighting fixture in which a part of the light output of the lamp in a lighting unit 6 is directed to some desired point or upon some desired object within range for the purpose of increasing the intensity of light on such point or object.
Further objects and advantages of the invention will be apparent from the description and claims.
In the drawings, in which several embodiments of my invention are shown,
Figure 1 is an axial sectional view of a lighting fixture;
Fig. 2 is a perspective view of the auxiliary reflector and mounting;
Fig. 3 is a section on the line 3-3 of Fig. 2;
Fig. 4 is an axial sectional View showing another form embodying my invention; and
Fig. 5 is a fragmentary view showing stillv another form.
Referring to the drawings in detail, the lighting construction shown comprises a concave main reflector l, a socket 2 for supporting a lamp 3 so that the light source lies substantially within this reflector, an auxiliary reflector 4 lying substantially between the light source and the inner surface of the concave reflector, and means for mounting the auxiliary reflector for adjustment about the light source and circumferentially with respect to the concave reflector and for adjustment to vary the angle of light beam projected from the auxiliary reflector with respect to the axis of the concave reflector. The mounting means shown comprises a bracket 5 having means whereby it may be clamped in various adjusted positions along the periphery of the concave reflector. The auxiliary reflector is mounted on the bracket by means ofa support 6 secured to the auxiliary reflector and having an arcuate foot portion 7 adjustably secured to a correspondingly shaped arcuate portion 8 of the bracket by means of a clamping screw 9 and nut l extending through slots in the arcuate portions. The bracket is secured to the rim of the reflector by means of a clamping jaw l I, one end of which has a hinge connection at l2 with the bracket and the other end of which bears against the outside of the reflector. Any suitable clamping screw [3 and nut I 4 may be provided for eifecting the clamping operation. By means of the two adjustments, the auxiliary reflector l may be adjusted to direct the light in any direction laterally and in any direction vertically from the point of cut-off of the main reflector l to the axis of the lamp. If desired, a combination reflector and baffle may be provided in the form of a plate I5 having an aperture through which the neck of the bulb extends and secured to the neck of the reflector by means of spring clips I5 secured to the plate and snapping into an annular channel formed in the neck of the reflector.
The construction shown in Fig. 4 is similar to that just described except that here the auxiliary reflector 4 is hinged at 22 to a finger I! struck downwardly from the plate I5 and that the vertical adjustment of light from the auxiliary reflector is effected by means of a rod I8 secured at one end to the lower edge of the auxiliary reflector and slidable in a sleeve or lug l9 secured to a spring clamp 20 adjustably mounted on the rim of the main reflector. This rod may be held in any desired adjustable position in the sleeve by means of a set screw 2|. The plate 15 to which the auxiliary reflector is hinged is adjustable circumferentially inside the neck of the reflector, thus permitting the required circumferential adjustment. The construction shown in Fig. 5 is similar to that just described, except that here the auxiliary reflector is hinged at 22 to a strap 23 secured to a clamping band 24 which may be clamped about the neck of the bulb. Here also it will be seen that the light from the auxiliary reflector may be adjusted, both circumferentially and vertically.
Further modifications will be apparent to those skilled in the art and it is desired, therefore, that the invention be limited only by the prior art and the scope of the appended claims.
Having thus described my invention, what I claim and desire to secure by Letters Patent is:
1. A lighting construction comprising a hood, an annular downwardly opening bowl-like reflector secured to and depending from said hood, a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from the hood and into the reflector, and" an auxiliary reflector mounted so that a substantial portion of it lies between the inner surface of the annular reflector and the light source for directing a beam of light laterally toward the axis of the lamp and underneath the lower annular edge of the annular reflector, said auxiliary reflector be-- ing mounted for swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, the means for mounting the auxiliary reflector comprising a pair of clamping jaws engaging the inner and outer surfaces respectively of the annular reflector.
2. A lighting construction comprising a hood, an annular downwardly opening bowl-like refiector secured to and depending from said hood, a lamp socket in said hood for supporting an electric lamp so that it extends downwardly from the hood and into the reflector, and. an auxiliary reflector mounted so that a substantial portion of it lies between the inner surface of the annular reflector and the light source for directing a beam of light laterally toward the axis of the lamp,
said auxiliary reflector being mounted for swivel adjustment about the axis of the lamp whereby the lateral light may be intensified in the desired radial direction, and means for adjusting said auxiliary reflector to vary the vertical angle of inclination of the beam therefrom, the means for mounting the auxiliary reflector comprising a pair of clamping jaws engaging the inner and outer surfaces respectively of the annular reflector.
JOHN H. WATERBURY.
US44689A 1935-10-12 1935-10-12 Lighting construction Expired - Lifetime US2113777A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441489A (en) * 1945-08-28 1948-05-11 Jacobs Henry Light-modifying attachment for lamps used in photography
US2638534A (en) * 1949-05-12 1953-05-12 Heiland Res Corp Reflector mounting structure
US4470103A (en) * 1980-01-09 1984-09-04 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Combined direct-indirect lighting photographic scene illumination device
DE4233930A1 (en) * 1991-10-10 1993-04-15 Juergen Schewe Wall- or ceiling-mounted spot light - has adjustable deflection mirror to direct light onto specific object or area
US5707142A (en) * 1996-10-09 1998-01-13 Musco Corporation Lighting fixture
FR2821147A1 (en) * 2001-02-20 2002-08-23 Fd Eclairage Lighting spot lamp, uses second reflector in principal beam to produce a secondary beam in another direction

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441489A (en) * 1945-08-28 1948-05-11 Jacobs Henry Light-modifying attachment for lamps used in photography
US2638534A (en) * 1949-05-12 1953-05-12 Heiland Res Corp Reflector mounting structure
US4470103A (en) * 1980-01-09 1984-09-04 Patent-Treuhand-Gesellschaft Fur Elektrische Gluhlampen Mbh Combined direct-indirect lighting photographic scene illumination device
DE4233930A1 (en) * 1991-10-10 1993-04-15 Juergen Schewe Wall- or ceiling-mounted spot light - has adjustable deflection mirror to direct light onto specific object or area
US5707142A (en) * 1996-10-09 1998-01-13 Musco Corporation Lighting fixture
FR2821147A1 (en) * 2001-02-20 2002-08-23 Fd Eclairage Lighting spot lamp, uses second reflector in principal beam to produce a secondary beam in another direction

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