CN105674211A - Light distributing lens of projection lamp - Google Patents
Light distributing lens of projection lamp Download PDFInfo
- Publication number
- CN105674211A CN105674211A CN201610192329.1A CN201610192329A CN105674211A CN 105674211 A CN105674211 A CN 105674211A CN 201610192329 A CN201610192329 A CN 201610192329A CN 105674211 A CN105674211 A CN 105674211A
- Authority
- CN
- China
- Prior art keywords
- light
- face
- curved surfaces
- lens
- projecting lamp
- 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.)
- Granted
Links
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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a light distributing lens of a projection lamp. The light distributing lens comprises an inwards concave light incident face, a hollow fully reflecting face and a light exit face which are arranged on the opposite outer end faces of a lens platform. The light incident face and the light exit face are each formed by a plurality of curved surfaces. The light incident face comprises a first light incident face body, a second light incident face body and a third light incident face body. The light exit face comprises a free curved surface which is located in the center area and large in area, symmetric outer side connecting faces on the two sides and a rear side connecting face, wherein the free curved surface, the outer side connecting faces and the rear side connecting face are connected. In the vertical direction, most of light passing through the first light incident face body and the second light incident face body is refracted to the front area through the light exit face, and a small part of light passing through the third light incident face body is reflected by the fully reflecting face and then refracted to the front area through the light exit face, and finally front projection type light distribution with narrowed angles on the two sides and little light on the back is achieved.
Description
Technical field
The invention belongs to lighting technical field, particularly relate to a kind of LED projector lamp light-distribution lens.
Background technology
Along with the high speed development of LED technology with popularize, LED is little with its volume, energy-conserving and environment-protective, specular removal, the advantages such as adjustability is good become the first-selection of green illumination, at present, LED is increasingly extensive in high-power illumination application, become the inexorable trend replacing conventional illumination sources, corresponding LED secondary optical light distribution lens is also further important, current luminous intensity distribution on the market is many based on circular luminous intensity distribution and rectangle luminous intensity distribution, circular luminous intensity distribution is primarily adapted for use in room lighting, at road, long and narrow scope many employings rectangle luminous intensity distribution such as tunnel, lamp stand is installed on to the road intersection hinge in outside, the large area lightings such as square, circular light spot and rectangular light spot are difficult to the front illuminated luminous intensity distribution type met needed for such occasion Uniform Illumination.
Summary of the invention
(1) to solve the technical problem that
Present invention aim to overcome disadvantages mentioned above, it is desirable to provide a kind of Projecting Lamp light-distribution lens.
(2) technical scheme
For reaching above-mentioned purpose, the Projecting Lamp light-distribution lens of the present invention, it is recessed bright finish including what be arranged at lens platform opposite exterior lateral sides end face, the fully reflecting surface of inner hollow and exiting surface, incidence surface and exiting surface form by multiple curved surfaces, this incidence surface includes the first incident curved surfaces, the second incident curved surfaces and the 3rd incident curved surfaces, and exiting surface includes centrally located region and has the free form surface exiting surface of larger area connection and the outside joint face of both sides symmetry and rear side joint face.
Further, described incidence surface is made up of multiple curved surfaces, and wherein incidence surface includes the first incidence surface of being positioned at photocentre front area, and centrally located region has the second incidence surface of larger area and is positioned at the 3rd incidence surface of photocentre posterior region.
Further, the first incident curved surfaces, the second incident curved surfaces and the 3rd asymmetric setting of incident curved surfaces three, the second incident curved surfaces is positioned at medium position and area is relatively big, is used for holding light supply apparatus.
Further, described first incident curved surfaces and the second incident curved surfaces are for major part light lateral deviation forward folding, and the 3rd incident curved surfaces is for rolling over fraction light lateral deviation backward.
Further, described fully reflecting surface is a hollow structure inside, and the light through the 3rd incidence surface deviation is reflexed to front region.
Further, described exiting surface is unsymmetric structure, and centrally located free form surface is attached by both sides and rear side joint face.
Further, free form surface exiting surface realizes the light deviation forward coming freely the first incidence surface and the second incidence surface and fully reflecting surface, and lateral symmetry face realizes narrowing and the abatement of light intensity both sides light angle, and rear side joint face plays interconnection function.
Further, described incidence surface and exiting surface form by multiple curved surfaces, convenient for following process, and the joining place in each several part face and face is with circular arc chamfering transition.
Further, all incidence surfaces, fully reflecting surface and exiting surface are respectively positioned on lens platform opposite exterior lateral sides end face.
Further, it is provided with two suspension columns of symmetry at lens platform inner side end, for light source and lens are positioned.
Further, described lens platform, suspension column and lens body are integrated structures.
(3) beneficial effect
Compared with prior art, technical scheme has the advantage that the present invention particular design by above-mentioned incidence surface, fully reflecting surface and exiting surface, coordinate high-power LED light source, obtain light concentration and be projected to front region, the light distribution effect that both sides light narrows. The distribution curve flux of actual measurement is 33 ° of polarisation largest light intensity angle, front side, 100 ° of peak value (FullwidthathalfMaximum, FWHM) light intensity angle, both sides half, and front side largest light intensity value doubles center light intensity values.
Accompanying drawing explanation
Fig. 1 a Fig. 1 b is the three-dimensional structure diagram of Projecting Lamp lens embodiment provided by the invention;
Fig. 2 is the front view of Projecting Lamp lens embodiment provided by the invention;
Fig. 3 is the sectional view of line A-A along Fig. 2;
Fig. 4 is the top view of Projecting Lamp lens embodiment provided by the invention;
Fig. 5 is the sectional view of line B-B along Fig. 4;
Fig. 6 is the upward view of Projecting Lamp lens embodiment provided by the invention;
Fig. 7 is the right view of Projecting Lamp lens embodiment provided by the invention;
Fig. 8 is the polar coordinate distribution curve flux schematic diagram of lens forming provided by the invention;
Fig. 9 is the rectangular coordinate distribution curve flux schematic diagram of lens forming provided by the invention;
Figure 10 is the isolux curve schematic diagram of lens forming provided by the invention.
Description of reference numerals
Incidence surface the 10, first incident curved surfaces the 11, second incident curved surfaces the 12, the 3rd incident curved surfaces 13, fully reflecting surface 20, exiting surface 30, free form surface exiting surface 31, both sides joint face 32, rear side connect curved surface 33, lens platform 40, lens location suspension column 41.
Detailed description of the invention
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail. Following example are used for illustrating the present invention, but are not limited to the scope of the present invention.
First, please refer to shown in Fig. 1 to Fig. 7, according to the optical lens structure preferred embodiment of the present invention, this light-distribution lens includes: what be arranged at lens platform 40 opposite exterior lateral sides end face is recessed bright finish 10, and be all-trans bright finish 20 and exiting surface 30.
Wherein, incidence surface 10 is made up of three parts, and including the incident curved surfaces 11 being positioned at photocentre front area, centrally located region has the incident curved surfaces 12 of larger area and is positioned at the incidence surface 13 of photocentre posterior region. The light that light source sends refracts to front region in part through incidence surface 11 and incidence surface 12, and high angle scattered light, by being refracted to rear area through incidence surface 13, is particularly refracted to low-angle by another part light.
Being worth supplementary notes, incidence surface 10 cavity area is relatively big, can hold high-power LED light source device completely, otherwise needs additionally to increase by one recessed along part.
Fully reflecting surface 20 is for a hollow structure inside, light through incidence surface 13 is reflected to curved surface 20 by deviation, due to structure constraint, at incidence surface 13 by under rear side high angle scattered light deviation to low-angle effect, reduce the curvature of fully reflecting surface, and then reduce the size of reflecting surface.
Exiting surface 30 is the unsymmetric structure of multiple part composition, there is the free form surface exiting surface 31 of larger area including centrally located district, lateral symmetry joint face 32 and rear side joint face 33, exiting surface 31 realizes the light deviation forward coming free incidence surface 31 and incidence surface 32 and fully reflecting surface, joint face 32 is the oblique section of drafting angle 15 °, realize narrowing and the abatement of light intensity both sides light angle, 33 interconnection functions of exiting surface. Coordinating the contour structures of exiting surface 30, the curved surface face type of incidence surface 11 is conducive to revising the light intensity value at each 35 ° of places about dead ahead.
In lenticular body incidence surface 10, fully reflecting surface 20 and exiting surface 30, each several part face and the joining place in face are with circular arc chamfering transition, it is simple to subsequent implementation is processed.
Being provided with two lens location suspension columns of symmetry inside lens platform, suspension column spacing requires to be adjusted according to external structure.
By the particular design of above-mentioned incidence surface 10, fully reflecting surface 20 and exiting surface 30, coordinate high-power LED light source, obtain light concentration and be projected to front region, the light distribution effect that both sides light narrows. Survey with the 250W Projecting Lamp sample that these lens are optics, Fig. 8 show the light fixture polar coordinate distribution curve flux figure that actual measurement obtains, 33 ° of polarisation largest light intensity angle, front side, 100 ° of peak light intensity angle, both sides half, and front side largest light intensity value double center light intensity values. Fig. 9 is the rectangular coordinate distribution curve flux schematic diagram of lens forming provided by the invention, and Figure 10 is the isolux curve schematic diagram of lens forming provided by the invention.
In sum, above-mentioned embodiment is not the restricted embodiment of the present invention, modification that all those skilled in the art carry out on the basis of the flesh and blood of the present invention or equivalent deformation, all at the technology category of the present invention.
Claims (11)
1. a Projecting Lamp light-distribution lens, it is recessed bright finish including what be arranged at lens platform opposite exterior lateral sides end face, the fully reflecting surface of inner hollow and exiting surface, it is characterized in that: incidence surface and exiting surface form by multiple curved surfaces, this incidence surface includes the first incident curved surfaces, the second incident curved surfaces and the 3rd incident curved surfaces, and exiting surface includes centrally located region and has the free form surface exiting surface of larger area connection and the outside joint face of both sides symmetry and rear side joint face.
2. Projecting Lamp light-distribution lens as claimed in claim 1, it is characterized in that: described incidence surface is made up of multiple curved surfaces, wherein incidence surface includes the first incidence surface of being positioned at photocentre front area, and centrally located region has the second incidence surface of larger area and is positioned at the 3rd incidence surface of photocentre posterior region.
3. Projecting Lamp light-distribution lens as claimed in claim 2, it is characterised in that: the first incident curved surfaces, the second incident curved surfaces and the 3rd asymmetric setting of incident curved surfaces three, the second incident curved surfaces is positioned at medium position and area is relatively big, is used for holding light supply apparatus.
4. Projecting Lamp light-distribution lens as claimed in claim 3, it is characterised in that: described first incident curved surfaces and the second incident curved surfaces are for major part light lateral deviation forward folding, and the 3rd incident curved surfaces is for rolling over fraction light lateral deviation backward.
5. Projecting Lamp light-distribution lens as claimed in claim 1, it is characterised in that: described fully reflecting surface is a hollow structure inside, and the light through the 3rd incidence surface deviation is reflexed to front region.
6. Projecting Lamp light-distribution lens as claimed in claim 1, it is characterised in that: described exiting surface is unsymmetric structure, and centrally located free form surface is attached by both sides and rear side joint face.
7. Projecting Lamp light-distribution lens as claimed in claim 6, it is characterized in that: free form surface exiting surface realizes the light deviation forward coming freely the first incidence surface and the second incidence surface and fully reflecting surface, lateral symmetry face realizes narrowing and the abatement of light intensity both sides light angle, and rear side joint face plays interconnection function.
8. the Projecting Lamp light-distribution lens as described in any one of claim 1-7, it is characterised in that: described incidence surface and exiting surface form by multiple curved surfaces, convenient for following process, and the joining place in each several part face and face is with circular arc chamfering transition.
9. Projecting Lamp light-distribution lens as claimed in claim 8, it is characterised in that: all incidence surfaces, fully reflecting surface and exiting surface are respectively positioned on lens platform opposite exterior lateral sides end face.
10. Projecting Lamp light-distribution lens as claimed in claim 9, it is characterised in that: it is provided with two suspension columns of symmetry at lens platform inner side end, for light source and lens are positioned.
11. Projecting Lamp light-distribution lens as claimed in claim 10, it is characterised in that: described lens platform, suspension column and lens body are integrated structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192329.1A CN105674211B (en) | 2016-03-30 | 2016-03-30 | Projecting Lamp light-distribution lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610192329.1A CN105674211B (en) | 2016-03-30 | 2016-03-30 | Projecting Lamp light-distribution lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105674211A true CN105674211A (en) | 2016-06-15 |
| CN105674211B CN105674211B (en) | 2019-03-26 |
Family
ID=56224528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610192329.1A Active CN105674211B (en) | 2016-03-30 | 2016-03-30 | Projecting Lamp light-distribution lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105674211B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402798A (en) * | 2016-11-15 | 2017-02-15 | 华中科技大学 | Lens for illumination of LED lamp |
| CN107401704A (en) * | 2017-08-01 | 2017-11-28 | 苏州欧普照明有限公司 | Projecting Lamp and its control method and controller, display system |
| CN109945133A (en) * | 2016-12-30 | 2019-06-28 | 杭州光锥科技有限公司 | Projecting Lamp lens, light emitting module and Projecting Lamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN201892149U (en) * | 2010-07-30 | 2011-07-06 | 北京朗波尔光电股份有限公司 | Lens and luminous component with the same |
| CN102818217A (en) * | 2012-09-11 | 2012-12-12 | 创高国际企业有限公司 | Secondary optical lens and related device thereof |
| CN203431724U (en) * | 2013-09-24 | 2014-02-12 | 广东宏磊达光电科技有限公司 | LED rail guarding lamp lens |
| CN104421833A (en) * | 2013-08-22 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source module comprising same |
| CN205447640U (en) * | 2016-03-30 | 2016-08-10 | 宁波正特光学电器有限公司 | Projecting lamp grading lens |
-
2016
- 2016-03-30 CN CN201610192329.1A patent/CN105674211B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022690A (en) * | 2009-09-11 | 2011-04-20 | 玉晶光电股份有限公司 | Optical lens |
| CN201892149U (en) * | 2010-07-30 | 2011-07-06 | 北京朗波尔光电股份有限公司 | Lens and luminous component with the same |
| CN102818217A (en) * | 2012-09-11 | 2012-12-12 | 创高国际企业有限公司 | Secondary optical lens and related device thereof |
| CN104421833A (en) * | 2013-08-22 | 2015-03-18 | 鸿富锦精密工业（深圳）有限公司 | Lens and light source module comprising same |
| CN203431724U (en) * | 2013-09-24 | 2014-02-12 | 广东宏磊达光电科技有限公司 | LED rail guarding lamp lens |
| CN205447640U (en) * | 2016-03-30 | 2016-08-10 | 宁波正特光学电器有限公司 | Projecting lamp grading lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402798A (en) * | 2016-11-15 | 2017-02-15 | 华中科技大学 | Lens for illumination of LED lamp |
| CN106402798B (en) * | 2016-11-15 | 2019-05-21 | 华中科技大学 | A kind of lens for LED light illumination |
| CN109945133A (en) * | 2016-12-30 | 2019-06-28 | 杭州光锥科技有限公司 | Projecting Lamp lens, light emitting module and Projecting Lamp |
| CN107401704A (en) * | 2017-08-01 | 2017-11-28 | 苏州欧普照明有限公司 | Projecting Lamp and its control method and controller, display system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105674211B (en) | 2019-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20180112227A1 (en) | Off-axis collimation optics | |
| US20140286018A1 (en) | Lens and an asymmetrical light distribution illuminating device having such lens | |
| CN105387370B (en) | A kind of illuminator based on bar shaped laser spot | |
| TWI534391B (en) | Light-guiding structure and light-emitting device | |
| TW201428208A (en) | Lens-reflector combination for batwing light distribution | |
| CN105674211A (en) | Light distributing lens of projection lamp | |
| US10948157B2 (en) | Reflector bowl and optical system applicable for colorful spotlight | |
| WO2017028780A1 (en) | Stage lamp optical system with improved light spot homogeneity | |
| CN107740957A (en) | A kind of hybrid lens combined blackboard lamp | |
| CN205447640U (en) | Projecting lamp grading lens | |
| CN106764939B (en) | A kind of collimation lens for eliminating stray light | |
| CN203202741U (en) | Narrow light beam LED illumination optical system | |
| US20150260374A1 (en) | Lens and led retrofit lamp | |
| CN103423703A (en) | High beam light lens and dipped headlight lens of motorcycle | |
| CN101907235A (en) | Multiple-lights-combining illumination device and the projection display device that has used this device | |
| CN101625103B (en) | LED lens and array structure thereof | |
| CN106402797A (en) | Light condensation and composition system and method for multiple LED light sources | |
| Wu et al. | Design method of a light emitting diode front fog lamp based on a freeform reflector | |
| CN105156990B (en) | LED street lamp lens unit, LED street lamp lens module and street lamp with LED street lamp lens module | |
| CN102980075B (en) | LED (Light-emitting Diode) large-angle light distribution device and LED bulb | |
| CN203431719U (en) | Motorcycle high-beam lamp lens and motorcycle low-beam lamp lens | |
| CN207080826U (en) | A kind of compound total reflection LED spotlight lens | |
| CN105841096A (en) | Light distribution lens | |
| TWI270628B (en) | Illumination device and assembly structure thereof | |
| US10151445B2 (en) | Light assembly having light homogenizer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |