CZ2014525A3 - Light source with diffraction structure, especially for controlled directional illumination of a surface - Google Patents
Light source with diffraction structure, especially for controlled directional illumination of a surfaceInfo
- Publication number
- CZ2014525A3 CZ2014525A3 CZ2014-525A CZ2014525A CZ2014525A3 CZ 2014525 A3 CZ2014525 A3 CZ 2014525A3 CZ 2014525 A CZ2014525 A CZ 2014525A CZ 2014525 A3 CZ2014525 A3 CZ 2014525A3
- Authority
- CZ
- Czechia
- Prior art keywords
- diffractive structure
- light source
- alfa
- alpha
- illuminated
- Prior art date
Links
Landscapes
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
Řešení se týká světelného zdroje s difrakční strukturou, zejména pro řízené směrové osvětlení plochy, kde mezi alespoň jednou LED diodou (1) a osvětlovaným povrchem (3) je umístěna difrakční struktura (2) na rovinné podložce a nebo zakřivené podložce, jehož podstata spočívá v tom, že difrakční struktura (2) uložená na rovinné podložce (4) je tvořena mikrostrukturou složenou z vrypů s asymetrickým profilem s periodou 500 nm až 1 mm a hloubkou 500 nm až 100 .mi.m, přičemž každé místo (x, x.1...x.n) difrakční struktury (2) je osvětleno LED diodou (1) pod odpovídajícím úhlem (.alfa., .alfa..1 ….alfa..n), přičemž světlo po průchodu difrakční strukturou (2) je odkloněno pod odpovídajícím úhlem dopadu (.alfa.´, .alfa.´.1 ….alfa.´.n) na osvětlovanou plochu (3) a přičemž spektrální charakteristika v každém bodě osvětlované plochy (3) je identická se spektrální charakteristikou LED diody (1). Řešení světelného zdroje podle vynálezu je uplatnitelné například u veřejného osvětlení, kde je možné osvětlovat předem určenou plochu a doplnit ji textovým či obrazovým sdělením, případně silničním značením a nebo reklamou.The present invention relates to a light source having a diffractive structure, in particular to a directed directional illumination of a surface, wherein a diffractive structure (2) is placed between the at least one LED (1) and the illuminated surface (3) on a planar support or a curved support, in that the diffractive structure (2) deposited on the planar substrate (4) is formed by a microstructure composed of scratches with an asymmetric profile with a period of 500 nm to 1 mm and a depth of 500 nm to 100 µm, each location (x, x. 1 ... xn) of the diffractive structure (2) is illuminated by an LED (1) at an appropriate angle (.alpha., .Alpha..1..alpha..n), wherein the light is deflected after passing through the diffractive structure (2) under the corresponding incidence angle (.alfa.´, .alfa.´.1… .alfa.´.n) on the illuminated area (3) and the spectral characteristic at each point of the illuminated area (3) is identical to the spectral characteristic of the LED ( 1). The solution of the light source according to the invention is applicable, for example, to public lighting, where it is possible to illuminate a predetermined area and to supplement it with a textual or pictorial message, or road marking or advertising.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ2014-525A CZ2014525A3 (en) | 2014-08-03 | 2014-08-03 | Light source with diffraction structure, especially for controlled directional illumination of a surface |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CZ2014-525A CZ2014525A3 (en) | 2014-08-03 | 2014-08-03 | Light source with diffraction structure, especially for controlled directional illumination of a surface |
Publications (2)
Publication Number | Publication Date |
---|---|
CZ305700B6 CZ305700B6 (en) | 2016-02-10 |
CZ2014525A3 true CZ2014525A3 (en) | 2016-02-10 |
Family
ID=55311030
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CZ2014-525A CZ2014525A3 (en) | 2014-08-03 | 2014-08-03 | Light source with diffraction structure, especially for controlled directional illumination of a surface |
Country Status (1)
Country | Link |
---|---|
CZ (1) | CZ2014525A3 (en) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1261132B (en) * | 1993-12-23 | 1996-05-09 | Carello Spa | DIFFRACTION PATTERN SUITABLE FOR GENERATING A FLUX OF LIGHT RADIATION WITH INTENSITY DISTRIBUTION PREFIXED IN AN AREA UNDERLYING THE FLOW ITSELF. |
CZ353797A3 (en) * | 1997-11-10 | 2000-05-17 | Autopal S. R. O. | Automobile lighting and signaling device with holographic refractor |
CZ149598A3 (en) * | 1998-05-13 | 1999-12-15 | Čvut Fakulta Jaderná A Fyzikálně Inženýrská | Diffraction system |
DE10054503B4 (en) * | 2000-11-03 | 2005-02-03 | Ovd Kinegram Ag | Light diffractive binary lattice structure and security element with such a lattice structure |
DE10333370A1 (en) * | 2003-07-23 | 2005-02-24 | Schott Ag | Lighting device, lens and lens manufacturing |
SK50092010A3 (en) * | 2010-04-20 | 2011-12-05 | S Power Export - Import, S. R. O. | Method of elimination of multiple shadows on lamps with point light sources, especially LED lighting |
CN102096134B (en) * | 2011-01-17 | 2012-11-28 | 西安交通大学 | Quantum dot implant reflection type active grating and manufacturing method thereof |
-
2014
- 2014-08-03 CZ CZ2014-525A patent/CZ2014525A3/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CZ305700B6 (en) | 2016-02-10 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | Patent lapsed due to non-payment of fee |
Effective date: 20190803 |