CN101240886A - LED mine lamp using non-imaging optical system - Google Patents
LED mine lamp using non-imaging optical system Download PDFInfo
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- CN101240886A CN101240886A CNA2008100344403A CN200810034440A CN101240886A CN 101240886 A CN101240886 A CN 101240886A CN A2008100344403 A CNA2008100344403 A CN A2008100344403A CN 200810034440 A CN200810034440 A CN 200810034440A CN 101240886 A CN101240886 A CN 101240886A
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Abstract
The present invention provides a LED miner's lamp using nonimaging optics, including a nonimaging optics, a casing part and a lighting circuit part, miner's lamp adopting aspherical composite lens and free surface reflector form the optical system, since the convexity of the composite lens and the reflecting surface of the reflector are free surfaces designed according to light distributing requirement, and optical line adjacent to the optical axis and optical line far from the optical axis are respectively controlled by the composite lens and free surface reflector, thus the size and the lighting distribution of the lighting area is more exact controlled, this improves utilization rate of the light energy and bas better visual effect.
Description
Technical field
The present invention relates to a kind of with the mine lamp of LED as light source, particularly a kind of LED mine lamp that uses non-imaging optical system.
Background technology
Along with the light efficiency of great power LED improves constantly, use LED to become possibility as the light source of mine lamp.In order to improve the utilization rate of light source luminous energy, design in the past generally adopts quadratic surface (as parabola) reflector to converge light, or the mode of using the quadratic surface reflector to cooperate with spherical lens realizes that luminous energy distributes.Only use the method for quadratic surface reflector can not control light path, and simple quadratic surface can not satisfy light distribution requirements under many circumstances near the light of optical axis.In using paraboloid and method that spherical lens cooperates, generally adopt the scheme that lens are installed in the light hole position, though can control light path near the light of optical axis, the light path of the light that reflects through reflector is affected, cause light distribution effect undesirable.In order to obtain satisfied illuminating effect, need the special optical system of design.
Summary of the invention
The present invention be directed to existing LED mine lamp light path control shortcoming and cause the unfavorable problem of light distribution effect, a kind of LED mine lamp that uses non-imaging optical system has been proposed, realized near optical axis and away from the independent control of the light path of the light of optical axis, make the distribution of illumination in the field of illumination be easy to more adjust on the one hand, the light that main light source is sent can obtain more effectively utilizing.
Technical scheme of the present invention is: a kind of LED mine lamp that uses non-imaging optical system, comprise non-imaging optical system, case member and lighting circuit parts, described optical system comprises aspheric surface compound lens, free-form surface reflector, the aspheric surface compound lens is arranged in the inner space of free-form surface reflector, described lighting circuit parts comprise main light source, secondary light source and circuit board, and main light source, secondary light source are separately fixed on the circuit board; The aspheric surface compound lens of circuit board and optical system, free-form surface reflector are fixed together, make main light source on the circuit board be positioned at the cylindrical cavity of aspheric surface compound lens, the optical axis of main light source overlaps with the symmetry axis of aspheric surface compound lens and free-form surface reflector, optical system that is fixed together and lighting circuit assembly as an integral installation in case member.
Described aspheric surface compound lens is divided into convex lens body and bearing two parts, and the convex lens body adopts the planoconvex spotlight form, and inner surface is the plane, and outer surface is a free form surface, and bearing inside is hollow, is used to hold main light source and fixed support.The aspheric surface compound lens uses glass or transparent resin material manufacturing.
Free form surface is adopted on described free-form surface reflector surface, can accurately control the light path away from the light of optical axis, and reflector surface adopts and grinds or the method for plated film improves reflectivity.
Described case member comprises transparency protected flat board, goes up sealing ring, lower seal, lasso and base; optical system that is fixed together and lighting circuit assembly as an integral installation in case member; middle contact-making surface adds the lower seal waterproof sealing; put transparency protected flat board directly over the free-form surface reflector; lasso is buckled on the transparency protected flat board; use the sealing ring waterproof sealing between the two, adopt between lasso and the base to be threaded.
The aspheric surface compound lens has special construction, can be divided into convex lens body and bearing two parts on function.The convex lens body adopts the planoconvex spotlight form, and inner surface is the plane, and outer surface is a free form surface.Bearing inside is hollow, is used to hold main light source, and bearing is further divided into upper and lower two parts, and the top surfaces externally and internally is the face of cylinder, and the bottom has and is used to locate and the structure that is connected.The convex lens body portion of aspheric surface compound lens is characterized in that outer surface adopts free form surface, can design according to light distribution requirements, is used for the light near optical axis is carried out light path control.The cylinder support part of aspheric surface compound lens has support and the function that is connected the convex lens body portion on the one hand, allows the light transmission away from optical axis on the other hand, so that use free-form surface reflector that the light away from optical axis is carried out light path control.
Reflector in the optical system is characterized in that reflecting surface adopts free form surface, and curve form designs according to light distribution requirements, can accurately control the light path away from the light of optical axis.
Use the feature of the LED mine lamp of above-mentioned optical system to be,, make the effect that can not be subjected to compound lens through the reflector light reflected again by the aspheric surface compound lens being placed the inner space of free-form surface reflector.Thereby realize near the light of optical axis with away from the relatively independent control of light path of the light of optical axis.
Beneficial effect of the present invention is: the LED mine lamp that uses non-imaging optical system, because the convex surface of compound lens and the reflecting surface of reflector all are the free form surfaces according to the light distribution requirements design, and independently control by compound lens and free-form surface reflector respectively near the light of optical axis with away from the light of optical axis, therefore can control the size of field of illumination and the Illumination Distribution in the field of illumination more exactly, thereby improve the utilization rate of luminous energy, and obtain better visual effect.
Description of drawings
Fig. 1 is the LED mine lamp structural representation that the present invention uses non-imaging optical system.
The specific embodiment
Use the LED mine lamp structural representation of non-imaging optical system as shown in Figure 1, use the LED mine lamp of non-imaging optical system to form by non-imaging optical system, case member and lighting circuit parts.Wherein, non-imaging optical system comprises aspheric surface compound lens 4, free-form surface reflector 5 and pedestal 11, aspheric surface compound lens 4 is arranged in the inner space of free-form surface reflector 5, and aspheric surface compound lens 4, free-form surface reflector 5 are decided to be respectively and are fixed on the pedestal 11; The lighting circuit parts comprise great power LED main light source 2, secondary light source 3 and circuit board 1, and great power LED main light source 2, secondary light source 3 are weldingly fixed on respectively on the circuit board 1; Circuit board 1 is positioned at below the pedestal 11 and pedestal 11 is connected and fixed, make main light source 2 on the circuit board 1 be positioned at the cylindrical cavity of aspheric surface compound lens 4, the optical axis of main light source 2 overlaps with the symmetry axis of aspheric surface compound lens 4 and free-form surface reflector 5, and makes main light source 2, aspheric surface compound lens 4 and free-form surface reflector 5 have enough positional precisions along axis direction each other.Also the structure that is located by connecting can be made in the bottom of free-form surface reflector, directly main light source circuit board and compound lens are fixed on the bottom of free-form surface reflector.
Case member comprise transparency protected dull and stereotyped 6, go up sealing ring 7, lower seal 9, lasso 8 and base 10.With the optical system that is fixed together and lighting circuit assembly as an integral installation in case member, middle contact-making surface adds lower seal 9 sealings, like this, relative position in installation and use between light source 2, compound lens 4 and the free-form surface reflector 5 can not change, and guarantees to obtain in the field of illumination consistent with design effect, stable Illumination Distribution.Put transparency protected dull and stereotypedly 6 directly over the free-form surface reflector 5, lasso 8 is buckled on transparency protected dull and stereotyped 6, uses sealing ring 7 sealings between the two, can adopt between last lasso and the base to be threaded, and has guaranteed the effect of waterproof sealing on the structure.
Free form surface is adopted on free-form surface reflector 5 surfaces, can use the diverse ways manufacturing: 1) use injection molding, the reflecting surface plated film is to improve reflectivity.2) use the metal material punch forming, reflecting surface adopts the method for grinding or plated film to improve reflectivity.
Above-mentioned LED high-power LED light source that mine lamp uses can have optical system one time, also can not have optical system one time.When use has the LED of an optical system, secondary light source 3 is placed the outside (as shown in drawings) of compound lens 4; When use does not have the LED of an optical system, secondary light source and main light source all can be positioned in the cavity of compound lens 4, the optical axis of main light source overlaps with the symmetry axis of compound lens 4 and free-form surface reflector 5, one or several secondary light sources place main light source around.
Claims (5)
1, a kind of LED mine lamp that uses non-imaging optical system, comprise non-imaging optical system, case member and lighting circuit parts, it is characterized in that described non-imaging optical system comprises aspheric surface compound lens, free-form surface reflector, the aspheric surface compound lens is arranged in the inner space of free-form surface reflector, described lighting circuit parts comprise main light source, secondary light source and circuit board, and main light source, secondary light source are separately fixed on the circuit board; The aspheric surface compound lens of circuit board and optical system, free-form surface reflector are fixed together, make main light source on the circuit board be positioned at the cylindrical cavity of aspheric surface compound lens, the optical axis of main light source overlaps with the symmetry axis of aspheric surface compound lens and free-form surface reflector, optical system that is fixed together and lighting circuit assembly as an integral installation in case member.
2, the LED mine lamp of use non-imaging optical system according to claim 1, it is characterized in that described aspheric surface compound lens is divided into convex lens body and bearing two parts, the convex lens body adopts the planoconvex spotlight form, inner surface is the plane, outer surface is a free form surface, bearing inside is hollow, is used to hold main light source and fixed support.
3, the LED mine lamp of use non-imaging optical system according to claim 1 is characterized in that described aspheric surface compound lens uses glass or transparent resin material manufacturing.
4, the LED mine lamp of use non-imaging optical system according to claim 1, it is characterized in that described free-form surface reflector surface employing free form surface, can accurately control the light path away from the light of optical axis, reflector surface adopts and grinds or the method for plated film improves reflectivity.
5, the LED mine lamp of use non-imaging optical system according to claim 1; it is characterized in that described case member comprises transparency protected flat board, goes up sealing ring, lower seal, lasso and base; optical system that is fixed together and lighting circuit assembly as an integral installation in case member; middle contact-making surface adds the lower seal waterproof sealing; put transparency protected flat board directly over the free-form surface reflector; lasso is buckled on the transparency protected flat board; use the sealing ring waterproof sealing between the two, adopt between lasso and the base to be threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100344403A CN101240886B (en) | 2008-03-11 | 2008-03-11 | LED mine lamp using non-imaging optical system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100344403A CN101240886B (en) | 2008-03-11 | 2008-03-11 | LED mine lamp using non-imaging optical system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101240886A true CN101240886A (en) | 2008-08-13 |
| CN101240886B CN101240886B (en) | 2010-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100344403A Expired - Fee Related CN101240886B (en) | 2008-03-11 | 2008-03-11 | LED mine lamp using non-imaging optical system |
Country Status (1)
| Country | Link |
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| CN (1) | CN101240886B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852355A (en) * | 2010-06-17 | 2010-10-06 | 浙江大学 | 3D heat radiating module type high-power LED illuminating device |
| CN101893187A (en) * | 2010-06-22 | 2010-11-24 | 上海理工大学 | LED mouth lamp optical system |
| CN102606977A (en) * | 2012-03-31 | 2012-07-25 | 华南理工大学 | Optical lens with free-form surfaces for LED automobile headlight |
| CN101761866B (en) * | 2008-12-25 | 2012-08-22 | 创研光电股份有限公司 | Optical lens and light-emitted diode lighting device thereof |
-
2008
- 2008-03-11 CN CN2008100344403A patent/CN101240886B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101761866B (en) * | 2008-12-25 | 2012-08-22 | 创研光电股份有限公司 | Optical lens and light-emitted diode lighting device thereof |
| CN101852355A (en) * | 2010-06-17 | 2010-10-06 | 浙江大学 | 3D heat radiating module type high-power LED illuminating device |
| CN101893187A (en) * | 2010-06-22 | 2010-11-24 | 上海理工大学 | LED mouth lamp optical system |
| CN101893187B (en) * | 2010-06-22 | 2013-04-03 | 上海理工大学 | LED mouth lamp optical system |
| CN102606977A (en) * | 2012-03-31 | 2012-07-25 | 华南理工大学 | Optical lens with free-form surfaces for LED automobile headlight |
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| Publication number | Publication date |
|---|---|
| CN101240886B (en) | 2010-11-10 |
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Granted publication date: 20101110 Termination date: 20130311 |