DE102008017234A1 - Optical system for directing rays of light, has optically effective component which consists of micro structured disk and unstructured disk glazed on both sides - Google Patents

Optical system for directing rays of light, has optically effective component which consists of micro structured disk and unstructured disk glazed on both sides Download PDF

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Publication number
DE102008017234A1
DE102008017234A1 DE102008017234A DE102008017234A DE102008017234A1 DE 102008017234 A1 DE102008017234 A1 DE 102008017234A1 DE 102008017234 A DE102008017234 A DE 102008017234A DE 102008017234 A DE102008017234 A DE 102008017234A DE 102008017234 A1 DE102008017234 A1 DE 102008017234A1
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Germany
Prior art keywords
disk
optical system
light
unstructured
sides
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DE102008017234A
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German (de)
Inventor
Andreas Hesse
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Individual
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Priority to DE102008017234A priority Critical patent/DE102008017234A1/en
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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
    • F21V5/00—Refractors for light sources
    • F21V5/002—Refractors for light sources using microoptical elements for redirecting or diffusing light
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/02—Catoptric systems, e.g. image erecting and reversing system
    • G02B17/04—Catoptric systems, e.g. image erecting and reversing system using prisms only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/12—Reflex reflectors
    • G02B5/122—Reflex reflectors cube corner, trihedral or triple reflector type
    • G02B5/124—Reflex reflectors cube corner, trihedral or triple reflector type plural reflecting elements forming part of a unitary plate or sheet

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

The optical system has an optically effective component which consists of a micro structured disk and an unstructured disk glazed on both sides. Both the disks lie parallel on one another. The disks arranged in such a manner form an optical system for entangling lamps. A structured plate is coplanar with the structure side.

Description

Die vorliegende Erfindung bezieht sich auf ein optisches System für eine oder mehrere Lichtquellen. Dieses System besteht aus mindestens zwei optisch wirksamen Bauelementen, von denen ein Element strukturiert und das andere unstrukturiert ist. Beispiel für ein strukturiertes Bauelement ist eine transparente Scheibe mit an einer Seite aufgeprägten Mikroprismen.The The present invention relates to an optical system for one or more light sources. This system consists of at least two optically active components, one of which structures an element and the other is unstructured. Example of a structured Component is a transparent disc with impressed on one side Microprisms.

Bei Mikrokegeln ergibt sich die Systematik, dass eine Abhängigkeit des Kegelwinkels und die die Unterdrückung von Lichtstrahlen unter flachen Winkeln besteht. Werden die Kegelwinkel kleiner, wird deutlich mehr Licht unter Winkeln von 60 bis 25 Grad zur Ebenennormalen der Prismenscheibe unterdrückt. Dieses im Sinne der Entblendung von Leuchtmitteln wünschenswerte Verhalten wird kehrt sich allerdings um im Bereich von austretendem Licht unter sehr flachen Winkeln kleiner 25 Grad. In diesen Winkelbereichen wird bei Einsatz solcher spitzwinkligen Kegelstrukturen die zulässige Leuchtdichte nach der Entblendungsnorm überschritten.at Micro cones gives the scheme that a dependency the cone angle and the suppression of light rays consists of flat angles. If the cone angles become smaller, it becomes clear more light at angles of 60 to 25 degrees to the plane normal Prismatic disc suppressed. This in the sense of glare behavior desirable by bulbs will be reversed however, in the area of leaking light under very shallow Angles smaller than 25 degrees. In these angular ranges is used such acute-angled conical structures the permissible luminance exceeded according to the deflagration standard.

Die vorliegende Erfindung besteht aus einer mit spitzwinkligen Mikroprismen versehenen Scheibe (hier Mikrokegel, 1) und einer glatten transparenten Abdeckscheibe, die parallel und Struktur an glatte Fläche (3) aufeinander gelegt sind. Dieser einfache Aufbau bewirkt eine Unterdrückung des Lichtaustritts unter flachen Winkeln durch Fresnellreflektionen, die um so stärker werden, je flacher Licht auf die ebene optische Oberfläche der Abdeckscheibe auftritt. Dadurch wird der unerwünschte Anstieg der Leuchtdicht unter flachen Winkeln unterdrückt, der Gesamtaufbau profitiert aber vom Einsatz der spitzeren Kegelgeometrie, da der Entblendungseffekt über alle Winkelbereiche nun stärker ausgeprägt ist (Siehe auch 5)The present invention consists of a disk provided with acute-angled microprisms (here microcone, 1 ) and a smooth transparent cover, which is parallel and structure on smooth surface ( 3 ) are placed on top of each other. This simple construction causes suppression of light leakage at shallow angles by Fresnel reflections, which become stronger the more shallow light appears on the planar optical surface of the cover. This suppresses the unwanted increase in luminance at shallow angles, but the overall design benefits from the use of the sharper cone geometry, as the glare-free effect is now more pronounced across all angular ranges (See also 5 )

2 zeigt Lichtstrahlengänge in Mikrokegeln zunächst ohne Abdeckscheibe. Diese Strahlengänge unterscheiden sich hier in zwei grundlegende Typen: Typ A (vorwärts gestreute) und Typ B (unter flachem Winkel gestreute). 2 shows light beam paths in micro cones initially without cover. These rays differ in two basic types: type A (forward scattered) and type B (scattered at a low angle).

Lichtstrahlen vom Typ B sind bei Anwendungen in der Beleuchtungstechnik im Allgemeinen unerwünscht und entsprechen nicht der gültigen Norm ( DIN EN 12464 – 1: 2003 ).Type B light beams are generally undesirable in lighting applications and do not comply with the applicable standard ( DIN EN 12464-1: 2003 ).

4 zeigt Lichtstrahlengänge in Mikrokegeln mit erfindungsgemäßer Abdeckscheibe. Lichtstrahlen vom Typ B werden hier aufgrund von Fresnellreflektionen in die Prismenstruktur zurückgestreut. Lichtstrahlen vom Typ A werden vorwärts gestreut und entsprechen der nach der Beleuchtungsnorm geforderten Leuchtdichteverteilung in [cd/m2].

  • A: Büroraumbeleuchtung
  • B: allgemeine Entblendung von Leuchtmitteln
4 shows light beam paths in micro cones with inventive cover. Light beams of type B are scattered back into the prism structure due to Fresnel reflections. Light beams of type A are scattered forward and correspond to the luminance distribution required in accordance with the lighting standard in [cd / m 2 ].
  • A: office room lighting
  • B: general glare of bulbs

Die optischen Materialien für die strukturierte und unstrukturierte Scheibe sind vornehmlich transparente Kunststoffe wie PMMA, PC oder auch Glas.The optical materials for the structured and unstructured Disc are primarily transparent plastics such as PMMA, PC or also glass.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

1 CDP-S-Struktur (Conical Deglaring Prism-Sharp angle) 1 CDP-S structure (Conical Deglaring Prism-Sharp angle)

2 Strahlengang des austretenden Lichtes bei CDP-S-Struktur mit Strahlengang vom Typ A und B ohne Abdeckscheibe 2 Beam path of the exiting light with CDP-S structure with beam path of type A and B without cover plate

3 CDP-S-Struktur mit transparenter Abdeckscheibe 3 CDP-S structure with transparent cover

4 Strahlengang des austretenden Lichtes bei CDP-S-Struktur mit Strahlengang vom Typ A und B ohne Abdeckscheibe 4 Beam path of the exiting light with CDP-S structure with beam path of type A and B without cover plate

5 Winkelverteilung des austretenden Lichtes zur Prismenscheibenebene bei CDP-S-Struktur mit und ohne transparente Abdeckscheibe 5 Angle distribution of the exiting light to the prismatic disc plane in CDP-S structure with and without transparent cover

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte Nicht-PatentliteraturCited non-patent literature

  • - DIN EN 12464 – 1: 2003 [0005] - DIN EN 12464 - 1: 2003 [0005]

Claims (2)

Das optische System zur Richtung von Lichtstrahlen ist dadurch gekennzeichnet, dass die optisch wirksamen Bauelemente aus eine mikrostrukturierten Scheibe und einer unstrukturierten beidseitig glatten Scheibe bestehen.The optical system for the direction of light rays is characterized in that the optically active components consist of a microstructured disk and an unstructured smooth disk on both sides. Der optische Aufbau nach Anspruch (1) ist dadurch gekennzeichnet, dass die beiden Scheiben parallel aufeinander liegen, die strukturierte Platte mit der Strukturseite auf der planparallelen (3). Derartig angeordnete Scheiben bilden ein optisches System zur Entblendung von Leuchten.The optical structure according to claim (1) is characterized in that the two discs are parallel to each other, the structured plate with the structure side on the plane-parallel ( 3 ). Disks arranged in this way form an optical system for glare-free illumination.
DE102008017234A 2008-04-04 2008-04-04 Optical system for directing rays of light, has optically effective component which consists of micro structured disk and unstructured disk glazed on both sides Withdrawn DE102008017234A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE102008017234A DE102008017234A1 (en) 2008-04-04 2008-04-04 Optical system for directing rays of light, has optically effective component which consists of micro structured disk and unstructured disk glazed on both sides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102008017234A DE102008017234A1 (en) 2008-04-04 2008-04-04 Optical system for directing rays of light, has optically effective component which consists of micro structured disk and unstructured disk glazed on both sides

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DE102008017234A1 true DE102008017234A1 (en) 2009-10-15

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2629136A1 (en) * 2012-02-16 2013-08-21 Koninklijke Philips Electronics N.V. Using micro optical elements for depth perception in luminescent figurative structures illuminated by point sources

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DIN EN 12464 - 1: 2003

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2629136A1 (en) * 2012-02-16 2013-08-21 Koninklijke Philips Electronics N.V. Using micro optical elements for depth perception in luminescent figurative structures illuminated by point sources
WO2013121346A1 (en) 2012-02-16 2013-08-22 Koninklijke Philips N.V. Using micro optical elements for depth perception in luminescent figurative structures illuminated by point sources

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R005 Application deemed withdrawn due to failure to request examination

Effective date: 20150408