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 surface

Info

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
Application number
CZ2014-525A
Other languages
Czech (cs)
Other versions
CZ305700B6 (en
Inventor
Jan Filák
Marek Škereň
Martin Nývlt
Jakub Svoboda
Milan Květoň
Martin Filák
Original Assignee
Filák, s.r.o.
HoloPlus s.r.o.
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 Filák, s.r.o., HoloPlus s.r.o. filed Critical Filák, s.r.o.
Priority to CZ2014-525A priority Critical patent/CZ2014525A3/en
Publication of CZ305700B6 publication Critical patent/CZ305700B6/en
Publication of CZ2014525A3 publication Critical patent/CZ2014525A3/en

Links

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  • 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.

CZ2014-525A 2014-08-03 2014-08-03 Light source with diffraction structure, especially for controlled directional illumination of a surface CZ2014525A3 (en)

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)

* Cited by examiner, † Cited by third party
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

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