US3628852A - Adjustably positionable reflectors - Google Patents
Adjustably positionable reflectors Download PDFInfo
- Publication number
- US3628852A US3628852A US21590A US3628852DA US3628852A US 3628852 A US3628852 A US 3628852A US 21590 A US21590 A US 21590A US 3628852D A US3628852D A US 3628852DA US 3628852 A US3628852 A US 3628852A
- Authority
- US
- United States
- Prior art keywords
- reflector
- housing
- region
- threaded fastener
- lateral spacing
- 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
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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
- 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
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
- F21V7/16—Construction with provision for adjusting the curvature
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/10—Mirrors with curved faces
Definitions
- a reflector assembly in accordance with the present disclosure comprises a deformable reflector mounted within a housing by an adjustablemounting means.
- the adjusting mounting means is capable of selectively adjusting the configuration and position of the reflector in the housing.
- at least one region of the reflector is fixedly positioned with the housing and other regions of the reflector are independently selectively positioned in the housing to thereby selectively alter the configuration of the reflector.
- This invention relates to apparatus for changing the orientation of a reflector, and particularly to apparatus for changing the size, shape and/or focal point of a reflector.
- reflectors have been constructed in a fixed shape and have not been capable of changing size, shape or focal length.
- the orientations of prior reflectors have been changed only by moving the entire reflector structure and when it was desirable to change the size, shape or focal length of a reflector, the entire reflector had to be replaced with one of desired size, shape and focal length.
- lt is an object of the present invention to provide a reflector structure whose size, shape and focal length may be selectively adjusted.
- Another object of the present invention is to provide a flexible reflector mounted to adjustable means so that the size, shape or focal length of the reflector may be selectively adjusted.
- a reflector in accordance with the present invention comprises a housing supporting a plurality of adjustable positioning means.
- a deformable reflector is mounted to the adjustable positioning means so that the reflector may be adjustably positioned within the housing by adjusting each positioning means.
- the position of the reflector is fixed at predetermined locations.
- FIG. 1 is a side view elevation in cutaway cross section of a reflector assembly in accordance with the presently preferred embodiment of the present invention
- FIG. 2 is a side view elevation of adjustable positioning means for use in the reflector assembly illustrated in FIG. 1;
- H6. 3 is a diagram illustrating the principles of operation of the reflector assembly illustrated in FIG. 1.
- the reflector assembly comprises a housing having an internal cavity 11.
- Reflector 12 which is preferably constructed of a single sheet of distortable metal, such as a thin sheet of aluminum or spring steel, is positioned within cavity 11 and includes reflective surface 13 on the inner surface thereof.
- surface 13 may be a polished surface or may be a thin layer of reflective material fastened or bonded to reflector 12.
- reflector l2 and surface 13 are arranged so that they form an elongated reflector in the form of a trough having an elliptical cross section, the axis of the trough being shown in end view in FIGS. 1 and 3.
- Reflector 12 is preferably positioned so that its elliptical surface forms a major axis lying in plane 14, which plane is perpendicular to the sheet of FIGS. 1 and 3.
- Mount means 15 is independently mounted within reflector l2 and carries source 16 of radiation, such as a radiant heater or lamp.
- source 16 is independently positioned on plane 14 within the reflector so as to direct radiation along the plane and forwardly of the forward end 17 of the reflector.
- Reflector 12 is fixedly mounted to housing 10 by and at fixed supports 18.
- Adjustable supports 19 are fixed to reflector 12 at various regions about the outer surface of the reflector, at least one such set of adjustable supports preferably lying in plane 14.
- FIG. 2 illustrates the details of adjustable supports 19.
- bracket 20 is fixedly attached to reflector 12, such as by bonding or welding the bracket directly to the outer surface of the reflector.
- Bracket 20 carries threaded bolt 21 directed outwardly from the reflector.
- Bolt 21 passes through slot aperture 22 in the wall of housing 10, and washers 23 and 24 abut each side of the wall of housing 10.
- Compression spring 25 is positioned between bracket 20 and washer 23 and is arranged to urge or bias reflector 12 away from housing 10.
- Fastener 26, such as a Wing nut, is threadably assembled to fastener 21 so that its load bearing surface bears against washer 24 which in turn bears against the wall of housing 10.
- each fastener 26 of each adjustable support 19 is independently axially rotated so as to independently selectively position each associated region of the reflector 12 with respect to housing 10.
- Fixed supports 18 define the position of at least one region of reflector 12. The spacing r of this region of the reflector from plane 14 (the spacing being measured along the normal to the plane) is constant. It follows that adjustment of supports forwardly of supports 18 (i.e., toward the open end of the reflector) make that part of the reflector wider or narrower, depending on the adjustment made, and
- the shape of the curve of the reflector is thereby adjustable over wide ranges.
- the shape of the curvature of the reflector may be generally characterized as elliptical, but it will be understood that variations from true ellipticity can be caused by the various mounting means.
- the generally elliptical shape has the plane 14 as its major axis.
- the reflector region (sometimes called the elliptical cross section") at the fixed supports is sometimes called a first region,” at the supports forwardly of the fixed supports, a second region,” and rearwardly of the fixed supports, a third region.
- fasteners 26 may be connected to suitable control devices, such as electrically operable solenoids, so that the fasteners may be adjusted by remote control, thereby adjusting the configuration of the reflector by remote control.
- suitable control devices such as electrically operable solenoids
- the present invention thus provides an adjustable reflector whose size, shape and/or focal length may be selectively adjusted without changing the reflector and without adjustment operations.
- Thereflector is effective in use and its configuration is easily changed.
- the reflector is particularly useful for playing fields adaptable for use for several sports.
- the reflectors can be adjusted to illuminate an elongated rectangular field, such as a football field, a more square-shaped field, such as a baseball field, or even a relatively small field such as a boxing or wrestling ring.
- lamps provided with reflectors in accordance with the present invention can be made to selectively illuminate the various fields merely by adjusting the configuration of the reflector.
- An adjustable reflector whose configuration may be selectively adjusted, comprising: deformable reflector means having a reflective surface, said reflector means defining a region having a substantially elliptical cross section, the major axis of the ellipse being substantially coincident with the forward direction of intended propagation of radiation from said reflector; housing means; fixed support means mounted to said housing means, said fixed support means being fixedly attached to a first region of the outer surface of said reflector means for supporting the same to define a fixed lateral spacing from the major axis of said elliptical cross section; first adjustable support means carried by said housing means and attached to said reflector means for selectively adjusting the lateral spacing from the central axis of said elliptical cross section at a second region of said reflector means where the said lateral spacing of said elliptical cross section is greater than said fixed lateral spacing; and second adjustable support means carried by said housing means and attached to said reflector means for selectively adjusting the configuration of said reflector means at a third region of said reflect
- each of said first and second adjustable support means comprises first threaded fastener means fixedly attached to the outer surface of said reflector means, second threaded fastener means threadalbly assembled to said first threaded fastener means.
- said second threaded fastener means having a load bearing surface, slot means through said housing means adapted to receive at least one of said threaded fasteners in such a manner that the load bearing surface of said second threaded fasteners bears against said housing means adjacent said slot means, and bias means urging separation of said housing means and said reflector means.
- each of said first and second adjustable support means comprises first threaded fastener means fixedly attached to the outer surface of said reflector means, second threaded fastener means threadably assembled to said first threaded fastener means, said second threaded fastener means having a load bearing surface, slot means through said housing means adapted to receive at least one of said threaded fasteners in such a manner that the load bearing surface of said housing means adjacent said slot means, and bias means urging separation of said housing means and said reflector means.
Abstract
Description
Claims (4)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2159070A | 1970-03-23 | 1970-03-23 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3628852A true US3628852A (en) | 1971-12-21 |
Family
ID=21805077
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US21590A Expired - Lifetime US3628852A (en) | 1970-03-23 | 1970-03-23 | Adjustably positionable reflectors |
Country Status (1)
Country | Link |
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US (1) | US3628852A (en) |
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3827782A (en) * | 1972-12-11 | 1974-08-06 | Eprod Inc | Reflector apparatus |
JPS5126554A (en) * | 1974-08-29 | 1976-03-04 | Hitachi Ltd | |
US3949215A (en) * | 1974-01-29 | 1976-04-06 | The Lucas Electrical Company Limited | Lamp assembly |
US4416263A (en) * | 1981-12-10 | 1983-11-22 | Niedermeyer William P | High ratio solar energy linear type concentrating collector |
US4416262A (en) * | 1980-07-22 | 1983-11-22 | Niedermeyer William P | High ratio microwave energy concentrating collector |
US4575788A (en) * | 1984-04-30 | 1986-03-11 | Ql, Inc. | Segmented luminaire |
US5210653A (en) * | 1992-06-08 | 1993-05-11 | Schell John D | External actuator for a deformable mirror |
US5291337A (en) * | 1992-10-21 | 1994-03-01 | Zenith Products Corp. | Device for adjusting the magnification of a flexible mirror and a method of making the same |
US5673153A (en) * | 1993-09-02 | 1997-09-30 | Image Optical Corporation | Viewing assembly for producing an optically corrected reflected image |
US5900996A (en) * | 1996-09-04 | 1999-05-04 | Zadro; Zlatko | Variable magnification mirror |
US6425671B1 (en) * | 2000-04-13 | 2002-07-30 | Alan Adler | Optical mirror flexing structure and assembly |
US20030223236A1 (en) * | 2002-05-29 | 2003-12-04 | Jiahn-Chang Wu | Projection lamp with led matrix panel |
US6715892B1 (en) * | 1998-12-31 | 2004-04-06 | Societe Europeene De Systemes Optiques | Method of making beam focusing surfaces, in particular at grazing incidence and apparatus for carrying it out |
US20090266966A1 (en) * | 2008-04-24 | 2009-10-29 | Infocus Corporation | Position Retention Device for Retaining Projector Folding Mirror |
US20100020538A1 (en) * | 2006-09-15 | 2010-01-28 | Stiftung Alfred-Wegener-Institut Fuer Polar- Und Meeresforschung | Reflector emitter |
US20110242688A1 (en) * | 2010-03-30 | 2011-10-06 | Simplexgrinnell Lp | Adjustable strobe reflector assembly |
WO2013015190A1 (en) * | 2011-07-26 | 2013-01-31 | コニカミノルタアドバンストレイヤー株式会社 | Solar light collecting mirror and solar thermal power generation system using said solar light collecting mirror |
US20140191647A1 (en) * | 2010-03-03 | 2014-07-10 | Koninklijke Philips N.V. | Electric lamp having reflector for transferring heat from light source |
US20140268829A1 (en) * | 2013-03-14 | 2014-09-18 | Man-D-Tec, Inc. | Downward Illumination Assembly |
US11493186B2 (en) | 2020-12-08 | 2022-11-08 | Richard S. Belliveau | Theatrical strobe apparatus and light sources with optimized focus thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2707903A (en) * | 1951-04-11 | 1955-05-10 | Centre Nat Rech Scient | Composite mirrors of large area in particular for concentrating solar energy |
US3229578A (en) * | 1962-01-02 | 1966-01-18 | Peter F Smith | Flexible mirror with individually deflectable portions |
US3478608A (en) * | 1966-06-23 | 1969-11-18 | Electro Optics Associates | Aligning and mounting mechanism device |
US3514776A (en) * | 1968-05-27 | 1970-05-26 | United Aircraft Corp | Mirror device |
-
1970
- 1970-03-23 US US21590A patent/US3628852A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2707903A (en) * | 1951-04-11 | 1955-05-10 | Centre Nat Rech Scient | Composite mirrors of large area in particular for concentrating solar energy |
US3229578A (en) * | 1962-01-02 | 1966-01-18 | Peter F Smith | Flexible mirror with individually deflectable portions |
US3478608A (en) * | 1966-06-23 | 1969-11-18 | Electro Optics Associates | Aligning and mounting mechanism device |
US3514776A (en) * | 1968-05-27 | 1970-05-26 | United Aircraft Corp | Mirror device |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3827782A (en) * | 1972-12-11 | 1974-08-06 | Eprod Inc | Reflector apparatus |
US3949215A (en) * | 1974-01-29 | 1976-04-06 | The Lucas Electrical Company Limited | Lamp assembly |
JPS5126554A (en) * | 1974-08-29 | 1976-03-04 | Hitachi Ltd | |
JPS5416420B2 (en) * | 1974-08-29 | 1979-06-22 | ||
US4416262A (en) * | 1980-07-22 | 1983-11-22 | Niedermeyer William P | High ratio microwave energy concentrating collector |
US4416263A (en) * | 1981-12-10 | 1983-11-22 | Niedermeyer William P | High ratio solar energy linear type concentrating collector |
US4575788A (en) * | 1984-04-30 | 1986-03-11 | Ql, Inc. | Segmented luminaire |
US5210653A (en) * | 1992-06-08 | 1993-05-11 | Schell John D | External actuator for a deformable mirror |
US5291337A (en) * | 1992-10-21 | 1994-03-01 | Zenith Products Corp. | Device for adjusting the magnification of a flexible mirror and a method of making the same |
US5673153A (en) * | 1993-09-02 | 1997-09-30 | Image Optical Corporation | Viewing assembly for producing an optically corrected reflected image |
US5677800A (en) * | 1993-09-02 | 1997-10-14 | Image Optical Corporation | Viewing assembly for producing an optically corrected reflected image |
US5900996A (en) * | 1996-09-04 | 1999-05-04 | Zadro; Zlatko | Variable magnification mirror |
US6715892B1 (en) * | 1998-12-31 | 2004-04-06 | Societe Europeene De Systemes Optiques | Method of making beam focusing surfaces, in particular at grazing incidence and apparatus for carrying it out |
US6425671B1 (en) * | 2000-04-13 | 2002-07-30 | Alan Adler | Optical mirror flexing structure and assembly |
US6767112B2 (en) * | 2002-05-29 | 2004-07-27 | Jiahn-Chang Wu | Projection lamp with led matrix panel |
US20030223236A1 (en) * | 2002-05-29 | 2003-12-04 | Jiahn-Chang Wu | Projection lamp with led matrix panel |
US20100020538A1 (en) * | 2006-09-15 | 2010-01-28 | Stiftung Alfred-Wegener-Institut Fuer Polar- Und Meeresforschung | Reflector emitter |
US8083379B2 (en) * | 2006-09-15 | 2011-12-27 | Stiftung Alfred-Wegener-Institut Fuer Polar- Und Meeresforschung | Reflector emitter |
US20090266966A1 (en) * | 2008-04-24 | 2009-10-29 | Infocus Corporation | Position Retention Device for Retaining Projector Folding Mirror |
US20140191647A1 (en) * | 2010-03-03 | 2014-07-10 | Koninklijke Philips N.V. | Electric lamp having reflector for transferring heat from light source |
US9383081B2 (en) * | 2010-03-03 | 2016-07-05 | Koninklijke Philips N.V. | Electric lamp having reflector for transferring heat from light source |
US8845136B2 (en) * | 2010-03-30 | 2014-09-30 | Tyco Fire & Security Gmbh | Adjustable strobe reflector assembly |
US20110242688A1 (en) * | 2010-03-30 | 2011-10-06 | Simplexgrinnell Lp | Adjustable strobe reflector assembly |
WO2013015190A1 (en) * | 2011-07-26 | 2013-01-31 | コニカミノルタアドバンストレイヤー株式会社 | Solar light collecting mirror and solar thermal power generation system using said solar light collecting mirror |
US20140268829A1 (en) * | 2013-03-14 | 2014-09-18 | Man-D-Tec, Inc. | Downward Illumination Assembly |
US9696022B2 (en) * | 2013-03-14 | 2017-07-04 | Mandy Holdings Lllp | Downward illumination assembly |
US11493186B2 (en) | 2020-12-08 | 2022-11-08 | Richard S. Belliveau | Theatrical strobe apparatus and light sources with optimized focus thereof |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: APT FINANCAL CORP.; 512 SOUTH TONAPAH DR., LAS VAG Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ADVANCED PATENT TECHNOLOGY, INC.;REEL/FRAME:003932/0046 Effective date: 19810520 |
|
AS | Assignment |
Owner name: INSTITUTE FOR SOCIAL AND SCIENTIFIC DEVELOPMENT TH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SOLOMON, JACK D.;REEL/FRAME:004610/0320 Effective date: 19860827 Owner name: INSTITUTE FOR SOCIAL AND SCIENTIFIC DEVELOPMENT TH Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SOLOMON, JACK D.;REEL/FRAME:004610/0320 Effective date: 19860827 |
|
AS | Assignment |
Owner name: SOLOMON, JACK D. Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:GAMING AND TECHNOLOGY, INC.;REEL/FRAME:004961/0028 Effective date: 19870824 Owner name: SOLOMON, JACK D. Free format text: AGREEMENT,;ASSIGNOR:GAMING AND TECHNOLOGY, INC.;REEL/FRAME:004961/0002 Effective date: 19851216 |