CN101660706B - LED lens for realizing light beam control - Google Patents
LED lens for realizing light beam control Download PDFInfo
- Publication number
- CN101660706B CN101660706B CN2008102207010A CN200810220701A CN101660706B CN 101660706 B CN101660706 B CN 101660706B CN 2008102207010 A CN2008102207010 A CN 2008102207010A CN 200810220701 A CN200810220701 A CN 200810220701A CN 101660706 B CN101660706 B CN 101660706B
- Authority
- CN
- China
- Prior art keywords
- lens
- plane
- light
- led
- light incidence
- 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.)
- Active
Links
Images
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
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
- F21W2131/103—Outdoor lighting of streets or roads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention relates to a semiconductor lighting technology, in particular to an LED lens capable of controlling light beams precisely. The LED lens is characterized in that the lens is provided with a bottom surface which is a plane; a concave surface which is a light incident plane of the lens is arranged in the center of the bottom surface of the lens; a light emergent plane and the bottom surface of the lens are communicated, and the profile of the bottom surface is defined; the light emergent plane of the light is formed by splicing at least two free curve surfaces; the main body part of the lens is defined by a space surrounded by the bottom surface, the light incident plane and the light emergent plane of the lens together; and the lens also comprises mounting feet or flat plates which are arranged on the bottom surface. The LED lens has the advantages that the energy space distribution of emergent light beams is controlled precisely by changing the free curve surface types of all separated light emergent planes of the lens, the light emergent efficiency of the lens is improved, and the spot shapes for meeting different illumination requirements and illuminance distribution can be achieved. The LED lens also has the advantages of high light emergent efficiency, easy control of light beams (various spot shapes and high uniformity), small volume, and the like.
Description
Technical field
The present invention relates to technical field of semiconductor illumination, relate in particular to a kind of LED lens of realizing Beam Control.
Background technology
Light emitting diode (LED) is that a class can directly be the electroluminescent device of visible light and radiant energy with electric energy conversion.LED compares conventional light source and has the luminous efficiency height, and colour rendering is good, and power consumption is few, energy-conserving and environment-protective, security reliability is high, the advantage of long service life, and begun to be used widely in a lot of fields, thought the main direction in lighting source market to have huge market potential by industry.
The LED outgoing of present various packing forms all be non-homogeneous circular light spot, but such hot spot can not satisfy the demand of actual illumination, be difficult to directly use, all need uniform rectangular light spot such as road lighting, tunnel illumination, backlight, projecting apparatus, automobile headlamp etc., some room lightings, shot-light, searchlight, stage lighting etc. then need uniform circle or oval hot spot.Therefore when using, the LED illumination needs secondary optical design.
Secondary optical system roughly can be divided into reflector control, lens control and reflector+lens and control three kinds.Reflector can only be controlled the emergent ray of LED wide-angle, do not have control action for the low-angle light of concentration of energy, so reflector can't effectively be controlled the LED bright dipping.Compare reflector, but lens have little, the lightweight modularized design of volume, be convenient to the advantages such as array installation, be the secondary optical system method for designing that present LED light fixture mainly adopts.Yet at present the LED light fixture adopts round symmetric lens more, and hot spot be circular substantially, can not satisfy the lighting requirements such as road lighting, tunnel illumination, backlight, projecting apparatus, automobile headlamp, and light loss greatly (＞15%), and user feedback is relatively poor.
Summary of the invention
The objective of the invention is for the defective that exists in the prior art, provide a kind of novel light extraction efficiency high, control the secondary optical lens of lighting apparatus light spot shape and the uniformity easily.
Purpose of the present invention can be achieved through the following technical solutions:
A kind of LED secondary optical lens is characterized in that lens have a bottom surface, and the bottom surface is the plane; There is a concave surface in lens bottom surface central authorities, are the plane of light incidence of lens; Beam projecting face and the bottom surface of lens are passed through mutually, define the profile of bottom surface; The beam projecting face is spliced to form by two free form surfaces at least; The main part of lens is by the common definition space that surrounds of bottom surface, plane of light incidence, beam projecting face of lens; Lens also comprise installation foot or the flat board that is arranged on the bottom surface.
Described plane of light incidence is sphere or the face of cylinder or sphere and Cylinder Combination curved surface.
Described beam projecting face is spliced to form by two free form surfaces at least, and the connecting portion of two curved surfaces is continuous transition or discontinuous transition.
The connection transition face of described two free form surfaces is plane or curved surface.
Described installation foot bottom surface is plane or inclined-plane or arc surface.
Described dull and stereotyped center and lens body part plane of light incidence corresponding region are processed with through hole, and through-hole side wall consists of the lens plane of light incidence with lens body part plane of light incidence.
Described slab-thickness is 1～10mm.
Described lens be by PC or PMMA or PP or ABS or PVC or glass material by injection moulding or Precision Machining manufacturing, the plane of light incidence of lens and beam projecting face are through polishing.
Described lens are single or array format, and lens and light source corresponding relation are for one to one or one-to-many or many-to-one relationship during installation.
Advantage of the present invention is respectively to separate light exit facet free-curved-surface-type by the change lens accurately to control the distribution of outgoing beam energy space, improves the lens light extraction efficiency, and can realize satisfying light spot shape and the Illumination Distribution of the different needs that throw light on.LED lens of the present invention have light extraction efficiency height, light beam and control easily the advantages such as (various spot shapes and high evenness), volume be little.
Description of drawings
Fig. 1 is the first embodiment of the invention side view;
Fig. 2 is top view among Fig. 1;
Fig. 3 is upward view among Fig. 1;
Fig. 4 is C0 cutaway view among Fig. 2;
Fig. 5 is C1 cutaway view among Fig. 2;
Fig. 6 is the second embodiment of the invention side view;
Fig. 7 is the third embodiment of the invention side view;
Fig. 8 is top view among Fig. 7;
Fig. 9 is the four embodiment of the invention schematic diagram;
Figure 10 is four embodiment of the invention simulation hot spot.
The specific embodiment
Below in conjunction with legend each embodiment among the present invention is described.
Fig. 1 is a street lamp lens to Figure 5 shows that the first embodiment of the present invention.The first embodiment has a flat bottom surface 105; There is a round LED installing hole 104 the lens bottom surface, and the curved surface in the installing hole is made of sphere or the face of cylinder or the combinatorial surface of the two, and this face and dull and stereotyped 103 through-hole side wall consist of the plane of light incidence of lens; The beam projecting face 106 of lens is comprised of at least two free form surfaces 101 splicing, can continuous transition or discontinuous transition between two free form surfaces; The fillet surface 102 that connects two free form surfaces can be plane or curved surface; The bottom surface 105 of lens, plane of light incidence 104, the beam projecting face 106 common spaces that surround are the entity part 10 of LED lens; Have on the bottom surface 105 of LED lens 10 one certain thickness dull and stereotyped 103, dull and stereotyped 103 is parallel with lens bottom surface 105, and contact with the bottom surface, dull and stereotyped installing hole 104 same positions at lens 10 have a same big or small through hole, the thickness of flat board is 1mm～10mm.The material of lens can be PC or PMMA or PP or ABS or PVC or glass in the present embodiment.Plane of light incidence 104 in the present embodiment, and beam projecting face 106 needs through polishing.
Figure 6 shows that the second embodiment of the present invention, be a street lamp lens.The difference of the second embodiment and the first embodiment is to have added installation foot 203 rather than flat board in the lens bottom surface among the second embodiment, and the height of installation foot 203 has concrete LED model to determine that material is identical with lens.
Fig. 7 is a tunnel lamp lens to Figure 8 shows that the third embodiment of the present invention.The 3rd embodiment has a flat bottom surface 304; There is a round LED installing hole lens bottom surface, and the curved surface in the installing hole is made of sphere or the face of cylinder or the combinatorial surface of the two, and this face and dull and stereotyped 303 through-hole side wall consist of the plane of light incidence of lens; The beam projecting face of lens is comprised of at least two free form surfaces 301 splicing, can continuous transition or discontinuous transition between two free form surfaces; The fillet surface 302 that connects two free form surfaces can be plane or curved surface; The bottom surface 304 of lens, plane of light incidence, the beam projecting face 305 common spaces that surround are the entity part of LED lens; Have on the bottom surface 304 of LED lens one certain thickness dull and stereotyped 303, dull and stereotyped 303 is parallel with lens bottom surface 304, and contact with the bottom surface, dull and stereotyped installing hole same position at lens has a same big or small through hole, the thickness of flat board is 1mm～10mm.The material of lens can be PC or PMMA or PP or ABS or PVC or glass in the present embodiment.Plane of light incidence in the present embodiment, beam projecting face 305 needs through polishing.
Fig. 9 is the fourth embodiment of the present invention, is a profile a LED street lamp different from the second embodiment.The LED lens 401 that use among the 4th embodiment are the second embodiment of the present invention.
Claims (7)
1. a LED secondary optical lens is characterized in that, lens have a bottom surface, and the bottom surface is the plane; There is a concave surface in lens bottom surface central authorities, are the plane of light incidence of lens; Beam projecting face and the bottom surface of lens are passed through mutually, define the profile of bottom surface; The beam projecting face is spliced to form by two free form surfaces at least, and the connecting portion of two free form surfaces is discontinuous transition; The main part of lens is by the common definition space that surrounds of bottom surface, plane of light incidence, beam projecting face of lens; Lens also comprise installation foot or the flat board that is arranged on the bottom surface.
2. LED secondary optical lens according to claim 1, it is characterized in that: described plane of light incidence is sphere or the face of cylinder or sphere and Cylinder Combination curved surface.
3. lens LED secondary optical lens according to claim 1, it is characterized in that: described installation foot bottom surface is plane or inclined-plane or arc surface.
4. LED secondary optical lens according to claim 1, it is characterized in that: described dull and stereotyped center and lens body part plane of light incidence corresponding region are processed with through hole, and through-hole side wall consists of the lens plane of light incidence with lens body part plane of light incidence.
5. LED secondary optical lens according to claim 1, it is characterized in that: described slab-thickness is 1～10mm.
6. LED secondary optical lens according to claim 1 is characterized in that: described lens be by PC or PMMA or PP or ABS or PVC or glass material by injection moulding or Precision Machining manufacturing, the plane of light incidence of lens and beam projecting face are through polishing.
7. LED secondary optical lens according to claim 1, it is characterized in that: described lens are single or array format, lens and light source corresponding relation are for one to one or one-to-many or many-to-one relationship during installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102207010A CN101660706B (en) | 2008-12-31 | 2008-12-31 | LED lens for realizing light beam control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102207010A CN101660706B (en) | 2008-12-31 | 2008-12-31 | LED lens for realizing light beam control |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101660706A CN101660706A (en) | 2010-03-03 |
| CN101660706B true CN101660706B (en) | 2013-04-17 |
Family
ID=41788890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102207010A Active CN101660706B (en) | 2008-12-31 | 2008-12-31 | LED lens for realizing light beam control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101660706B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162165A (en) * | 2011-12-12 | 2013-06-19 | 刘胜 | Direct type light-emitting diode (LED) backlight module provided with free-form surface lens |
| CN102569615B (en) * | 2012-01-16 | 2015-05-20 | 华中科技大学 | Free-form surface lens and method of realizing shape-preserving coating for same |
| CN102590923B (en) * | 2012-03-01 | 2015-04-22 | 清华大学深圳研究生院 | Lens, hologram projection production system and method thereof |
| TWI474050B (en) * | 2012-05-02 | 2015-02-21 | Ledlink Optics Inc | LED optical lens with complex media |
| CN103185290A (en) * | 2013-02-21 | 2013-07-03 | 许宸伟 | Zoom multi-layer lens for illumination |
| CN103453440B (en) * | 2013-08-01 | 2015-11-18 | 东莞市可享光电科技有限公司 | A kind of PC lens, dot matrix PC lens module and LED street lamp |
| CN104676469B (en) * | 2013-11-29 | 2019-07-02 | 深圳市海洋王照明工程有限公司 | A kind of lens and lamps and lanterns |
| CN106838826B (en) * | 2017-03-16 | 2023-02-10 | 广东烨嘉光电科技股份有限公司 | Design method of lighting lens |
| CN109521573A (en) * | 2019-01-02 | 2019-03-26 | 苏州天准科技股份有限公司 | The linear laser hot spot longitudinal light method of 3d linear laser scanning survey equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831636A (en) * | 2005-03-07 | 2006-09-13 | 三洋电机株式会社 | Converging element and illuminating device |
| CN101144863A (en) * | 2007-10-16 | 2008-03-19 | 李旭亮 | secondary optical lens |
| CN201047884Y (en) * | 2007-06-15 | 2008-04-16 | 唐德瑜 | Collector lens for LED lamp |
| CN201050735Y (en) * | 2007-07-06 | 2008-04-23 | 吴巨芳 | Lens |
| CN101251611A (en) * | 2007-02-20 | 2008-08-27 | 赛克尼克斯股份有限公司 | Focusing lens for LED |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6607286B2 (en) * | 2001-05-04 | 2003-08-19 | Lumileds Lighting, U.S., Llc | Lens and lens cap with sawtooth portion for light emitting diode |
-
2008
- 2008-12-31 CN CN2008102207010A patent/CN101660706B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1831636A (en) * | 2005-03-07 | 2006-09-13 | 三洋电机株式会社 | Converging element and illuminating device |
| CN101251611A (en) * | 2007-02-20 | 2008-08-27 | 赛克尼克斯股份有限公司 | Focusing lens for LED |
| CN201047884Y (en) * | 2007-06-15 | 2008-04-16 | 唐德瑜 | Collector lens for LED lamp |
| CN201050735Y (en) * | 2007-07-06 | 2008-04-23 | 吴巨芳 | Lens |
| CN101144863A (en) * | 2007-10-16 | 2008-03-19 | 李旭亮 | secondary optical lens |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101660706A (en) | 2010-03-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101660706B (en) | LED lens for realizing light beam control | |
| US8430546B2 (en) | Dustproof lens and its module for LED road lamp | |
| US8591079B2 (en) | LED ceiling lamp | |
| CN101922633A (en) | LED illumination device | |
| CN101852388A (en) | Wide-angle light-distribution lens for LEDs and application thereof | |
| US20130083541A1 (en) | Optical lens, light-emitting diode optical component and light-emitting diode illumination lamp | |
| JP2010244955A (en) | Diode refraction ceiling lighting device | |
| CN101886765A (en) | LED surface light source device | |
| CN103116197A (en) | Single-free-form-surface thick lens with short-distance uniform light effect and array thereof | |
| CN203615243U (en) | Lens and lighting device comprising lens | |
| CN202581120U (en) | Light emitting diode (LED) rectangular light spot lens | |
| US10295151B2 (en) | Optical member for spot flood lights | |
| CN106500013A (en) | Projecting Lamp lens, light emitting module and Projecting Lamp | |
| KR101804969B1 (en) | Lens module for led luminaire | |
| CN201935119U (en) | Wide-angle grading lens used for LED (light-emitting diode) and lamp box | |
| CN101922634A (en) | LED (Light Emitting Diode) illumination device | |
| WO2018032994A1 (en) | Strip special-shaped lens and led light source assembly based on strip special-shaped lens | |
| CN201416838Y (en) | LED lens for realizing beam control | |
| CN103017084A (en) | Secondary optical lens for light emitting diode (LED) wide-angle bulb lamp and LED wide-angle bulb lamp | |
| CN102455459B (en) | Optical film plate capable of adjusting light source | |
| KR20110088130A (en) | LED lens and LED module for double-sided lighting and LED double-sided lighting device using the same | |
| CN104676462A (en) | Lens and lighting device | |
| CN104180301A (en) | Lamp and lens thereof | |
| CN202521496U (en) | Calculus light distribution lens for light-emitting diode (LED) lighting lamp | |
| CN103267262B (en) | LED navaid lamp optical assembly used for generating rectangular spots |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210830 Address after: 528200 unit 601, floor 6, block a, Jingu Zhichuang industrial community, No. 2, Yong'an North Road, Dawei community, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Patentee after: GUANGDONG REAL FAITH LIGHTING TECHNOLOGY Co.,Ltd. Address before: 528521 Guangdong Province, Foshan City Nanhai District Pingzhou South Street No. 5 Patentee before: GUANGDONG REAL FAITH OPTO-ELECTRONIC Co.,Ltd. |