FR2821168A1 - Optical device guiding and homogenizing a flux of electromagnetic radiation - Google Patents

Optical device guiding and homogenizing a flux of electromagnetic radiation Download PDF

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Publication number
FR2821168A1
FR2821168A1 FR0102395A FR0102395A FR2821168A1 FR 2821168 A1 FR2821168 A1 FR 2821168A1 FR 0102395 A FR0102395 A FR 0102395A FR 0102395 A FR0102395 A FR 0102395A FR 2821168 A1 FR2821168 A1 FR 2821168A1
Authority
FR
France
Prior art keywords
source
homogenizing
mirror
conical
electromagnetic radiation
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.)
Withdrawn
Application number
FR0102395A
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French (fr)
Inventor
Pierre Malifaud
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR0102395A priority Critical patent/FR2821168A1/en
Publication of FR2821168A1 publication Critical patent/FR2821168A1/en
Withdrawn legal-status Critical Current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
    • F21V7/00—Reflectors for light sources
    • F21V7/0025—Combination of two or more reflectors for a single light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0977—Reflective elements
    • G02B27/0983—Reflective elements being curved

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

Abstract

The device combines two homogenizing mirrors, one, a toroidal mirror (3), behind the radiation source (2) and the other, a conical or pyramidal mirror (8), ahead of the radiation source. The center of the source lies in the same plane as the toroidal mirror so the image of the source appears as a ring on the conical mirror. An optical lens (12) may be placed at the front of the device.

Description

<Desc/Clms Page number 1> <Desc / Clms Page number 1>

La présente invention concerne un dispositif optique destiné à homogénéiser et à guider dans un angle solide prédéterminé le flux émis par une source de rayonnement électromagnétique dans un angle solide déterminé.  The present invention relates to an optical device intended to homogenize and guide in a predetermined solid angle the flux emitted by a source of electromagnetic radiation in a determined solid angle.

Traditionnellement, il existe des dispositifs homogénéiseurs, notamment coniques ou pyramidaux, placés en avant d'une source. Il existe aussi des dispositifs homogénéiseurs, notamment conoïdaux, placés en arrière d'une source.  Traditionally, there are homogenizing devices, in particular conical or pyramidal, placed in front of a source. There are also homogenizing devices, in particular conoidal, placed behind a source.

Le dispositif selon l'invention consiste en la combinaison optimisé de deux miroirs homogénéiseurs, l'un, toroïdal, à l'arrière et l'autre, conique ou pyramidal, à l'avant d'une source de rayonnement, les centres en couronne du miroir toroïdal étant situés dans le plan médian de la source ainsi que la petite section du miroir conique ou pyramidal. Le dispositif peut en outre avantageusement comporter à l'avant une lentille optique concourant à l'optimisation.  The device according to the invention consists of the optimized combination of two homogenizing mirrors, one, toroidal, at the rear and the other, conical or pyramidal, at the front of a radiation source, the centers in a ring of the toroidal mirror being located in the median plane of the source as well as the small section of the conical or pyramidal mirror. The device can also advantageously include at the front an optical lens contributing to the optimization.

Les dessins annexés illustrent l'invention : La figure 1 représente en coupe axiale verticale un dispositif d'éclairage selon l'invention.  The accompanying drawings illustrate the invention: Figure 1 shows a vertical axial section of a lighting device according to the invention.

La figure 2 représente en vue de dessus le même dispositif. Figure 2 shows a top view of the same device.

En référence à ces dessins, le dispositifs comporte une source de rayonnement (1) de corps émissif (2), un miroir toroïdal (3) dont la surface est engendrée par la révolution, autour de l'axe général (4) du dispositif, d'un arc de cercle (3) de centre (5). Le centre moyen du corps émissif (2) et les centres tels que (5) du miroir toroïdal (3) sont situés dans un même plan. De la sorte, l'image (6) du corps émissif (2) de la source (1) se trouve répartie selon un anneau, comme on le voit explicitement sur la figure 2, situé à l'intérieur de la petite section (7) du miroir conique (8) associé- : Un rayon lumineux tel que (9) émis par la source (2) pénètre ainsi dans le miroir conique selon un trajet (9)- (10)- (11) représenté au dessin. Une lentille plan-convexe (12) complète dans cet exemple, le dispositif. With reference to these drawings, the device comprises a source of radiation (1) from an emissive body (2), a toroidal mirror (3) whose surface is generated by the revolution, around the general axis (4) of the device, an arc (3) of center (5). The middle center of the emissive body (2) and the centers such as (5) of the toroidal mirror (3) are located in the same plane. In this way, the image (6) of the emissive body (2) of the source (1) is distributed in a ring, as can be seen explicitly in Figure 2, located inside the small section (7 ) of the associated conical mirror (8): A light ray such as (9) emitted by the source (2) thus enters the conical mirror along a path (9) - (10) - (11) shown in the drawing. In this example, a plano-convex lens (12) completes the device.

Claims (1)

Figure img00020001
Figure img00020001
 REVENDICATIONS Dispositif optique destiné à homogénéiser et à guider dans un angle solide prédéterminé le flux émis par une source de rayonnement électromagnétique dans un angle solide déterminé, CARACTERISE par la combinaison optimisée de deux miroirs homogénéiseurs, l'un, toroïdal, à l'arrière et l'autre, conique ou pyramidal, à l'avant d'une source de rayonnement, les centres en couronne du miroir toroïdal étant situés dans le plan médran de la source ainsi que la petite section du miroir conique ou pyramidal, le dispositif pouvant avantageusement comporter à l'avant une lentille optique.CLAIMS Optical device intended to homogenize and guide in a predetermined solid angle the flux emitted by a source of electromagnetic radiation in a determined solid angle, CHARACTERIZED by the optimized combination of two homogenizing mirrors, one, toroidal, at the rear and the other, conical or pyramidal, in front of a radiation source, the crown centers of the toroidal mirror being located in the median plane of the source as well as the small section of the conical or pyramidal mirror, the device advantageously being have an optical lens at the front.
FR0102395A 2001-02-22 2001-02-22 Optical device guiding and homogenizing a flux of electromagnetic radiation Withdrawn FR2821168A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0102395A FR2821168A1 (en) 2001-02-22 2001-02-22 Optical device guiding and homogenizing a flux of electromagnetic radiation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0102395A FR2821168A1 (en) 2001-02-22 2001-02-22 Optical device guiding and homogenizing a flux of electromagnetic radiation

Publications (1)

Publication Number Publication Date
FR2821168A1 true FR2821168A1 (en) 2002-08-23

Family

ID=8860303

Family Applications (1)

Application Number Title Priority Date Filing Date
FR0102395A Withdrawn FR2821168A1 (en) 2001-02-22 2001-02-22 Optical device guiding and homogenizing a flux of electromagnetic radiation

Country Status (1)

Country Link
FR (1) FR2821168A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998104A1 (en) * 2007-04-21 2008-12-03 Stefan Naumann Reflector device
US20100265178A1 (en) * 2009-04-17 2010-10-21 Microsoft Corporation Camera-based multi-touch mouse
US9218116B2 (en) 2008-07-25 2015-12-22 Hrvoje Benko Touch interaction with a curved display

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1998104A1 (en) * 2007-04-21 2008-12-03 Stefan Naumann Reflector device
US9218116B2 (en) 2008-07-25 2015-12-22 Hrvoje Benko Touch interaction with a curved display
US9459784B2 (en) 2008-07-25 2016-10-04 Microsoft Technology Licensing, Llc Touch interaction with a curved display
US20100265178A1 (en) * 2009-04-17 2010-10-21 Microsoft Corporation Camera-based multi-touch mouse
US8446367B2 (en) * 2009-04-17 2013-05-21 Microsoft Corporation Camera-based multi-touch mouse

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