CN201795424U - Decentered optical lens - Google Patents
Decentered optical lens Download PDFInfo
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- CN201795424U CN201795424U CN2010202649165U CN201020264916U CN201795424U CN 201795424 U CN201795424 U CN 201795424U CN 2010202649165 U CN2010202649165 U CN 2010202649165U CN 201020264916 U CN201020264916 U CN 201020264916U CN 201795424 U CN201795424 U CN 201795424U
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- light
- optical lens
- convex body
- groove
- light source
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Abstract
The utility model provides a decentered optical lens, which is characterized in that the decentered optical lens comprises a body, a light-emitting surface is formed on the outer side of the body, and the light-emitting surface is a convex body; a light incoming surface is formed on the inner side of the body; a groove is formed on the light incoming surface; a light source can be held in the groove; at least one curved surface, a top surface and a bottom surface are formed on the light incoming surface through the groove, and the top surface and the bottom surface are connected with the curved surface; and the light source can form an off-axis and light-focusing light distribution state. Therefore, the decentered optical lens can achieve an ideal light distribution mode with enough central brightness and irradiating width conforming to the requirements.
Description
Technical field
The utility model relates to an optical lens, more detailed it, refer to that a kind of mode of lens refractions of utilizing makes light source form off-axis to increase a kind of off-axis formula optical lens of illumination zone and light source concentration degree.
Background technology
LED has been widely used on the light fixture as lighting source because have advantages such as high brightness, volume are little, power saving.All with the form manufacturing of packaging LED wafer, and lens are made as hemisphere fore-set body with traditional lens inside, are concentrated so that the light that LED Chips for Communication can be sent to be provided.Right aforementioned luminous form too concentrates near the optical axis zone, because its energy of light source is comparatively concentrated, has the larger area light source in order to make it, and the work that must cooperate LGP is in order to improve aforesaid problem.Again, when light-emittingdiode directly is located at the LGP below, for it is little to overcome the light-emittingdiode light-emitting area, just need to use most light-emittingdiodes can reach the required uniformity of area source relatively.Therefore, effectively reduce the usage quantity of light-emittingdiode for the LGP below that is engaged in particular area, many dealers turn to the moulding aspect of lens and develop, as US6679621 patent case, it utilizes special lens shape design, make the light of light-emittingdiode be able to outwards penetrate, can improve the little problem of above-mentioned light source area through the directional light that lens produce perpendicular to optical axis.Only, the loss influence that the integrally-built luminous efficiency of this case is subjected to repeatedly reflecting, reflect except meeting and reducing, more since most light be refracted with optical axis in vertical direction, cause the phenomenon of optical axis near zone light energy deficiency on the contrary.
The lampshade structure that the auxiliary LED light source outwards penetrates comprises a reflector, a led light source and a front shroud haply.This reflector internal layer is a reflection material, in order to the reflection led light source; This front shroud is covered on this reflector front end, can adjust and use convex lens, semi-convex lens or planar lens etc. according to the bright dipping light shape of this light fixture institute desire generation.Above-mentioned reflector has single curved surface, the surface of emission setting of led light source forward, the light source of very small portion is to see through this front shroud and direct projection is gone out, most light source reflect via reflector then to be penetrated to front shroud.Therefore, these LED light fixtures produce an illumination zone, and the brightness of illumination in this illumination zone is identical haply, thus do not have the center enough bright, according to fabric width degree, desirable luminous intensity distribution that light shape is flat.
Conventional lamp generally adopts reflector to handle as secondary optics again, because the restriction of LED light efficiency, present stage is not suitable for adopting reflector to make secondary optics and handles, and adopts the lens way mostly so generally handle for the secondary optics of LED light fixture.The existing lens that are used for light fixture are generally simple spheroid or non-spheroid curved surface refraction structure, or for optically focused or for dispersing, though luminous intensity distribution is had certain improvement effect, but poor effect, and see through collector lens and do the secondary optics processing, the distribution curve flux of light fixture might be difficult to meet national standard, and sees through present divergent lens, and Luminaire efficiency is reduced.
Summary of the invention
Main purpose of the present utility model is, a kind of off-axis formula optical lens is provided, and via proper optical design light beam of light source is effectively allocated to the scope of luminous intensity distribution standard, utilizes the mode of refraction to make light source form the luminous intensity distribution kenel of an off-axis and optically focused.
The utility model provides a kind of off-axis formula optical lens, it is characterized in that:
One body, this body outside is an exiting surface, this exiting surface is a convex body; This body inboard is an incidence surface, this incidence surface has a groove, a ccontaining light source in this groove, this groove is formed with at least one curved surface and an end face that is connected with this curved surface and a bottom surface in this incidence surface, makes light source see through the luminous intensity distribution state that this body forms off-axis and optically focused.
Wherein, this convex body top has more a plane.
Wherein, the curved surface of this groove is a taper surface, a hyperboloid or an asymmetric curved surface.
Wherein, this convex body is the sphere convex body.
Wherein, this convex body is the aspheric surface convex body.
Wherein, this convex body is the hyperboloid convex body.
Wherein, this convex body is symmetrical convex body.
Wherein, this body recess place more connects a base, and these base both sides are respectively to convexing with a joint pin away from this groove direction.
Wherein, this body outside more is formed with an atomizing layer.
The utility model beneficial effect:
1. the optical lens of a kind of off-axis formula of the utility model, the groove of its incidence surface presents asymmetric curved surface, the light that light source can be provided is reference center with the optical axis of optical lens body, and to disperse the refraction form near optical axis, make its light intensity distributions can be the feature that bilateral is down trapezoidal illumination, emphasis is to make the light of upwards dispersing through reflection convergence optical axis, carry out for the second time the divergence of beam of convergence optical axis gradually by exiting surface again, light source can be provided be off-axis up and down and both sides are the light-emitting area of evenly dispersing, and can directly be applied in surface light source system, and the benefit lifting that has the usage quantity that can significantly reduce light-emitting component and reduce manufacturing cost.
2. the optical lens of a kind of off-axis formula of the utility model, an end face and a bottom surface that this curved surface connects can provide light source one reflex, at reflex time, can reduce the loss of light source in light source, make the light of dispersing can reach the effect of an optically focused via reflection refraction afterwards.
3. the optical lens of a kind of off-axis formula of the utility model, this body outside more is formed with an atomizing layer, make light refraction through exiting surface and atomizing layer with the diffusion of auxiliary light, even dispersive plane light source, become one than the soft light effect.
Description of drawings
Fig. 1 the utility model perspective view (one).
Fig. 2 the utility model perspective view (two).
Fig. 3 the utility model is implemented aspect generalized section ().
Fig. 4 the utility model is implemented aspect generalized section (two).
Fig. 5 the utility model illuminance simplation verification distribution map.
The specific embodiment
See also Fig. 1 to shown in Figure 3, the utility model provides a kind of off-axis formula optical lens, it is characterized in that:
One body 10, these body 10 outsides are an exiting surface 11, and this exiting surface 11 is a convex body 12, and this convex body 12 can be sphere convex body, aspheric surface convex body, symmetrical convex body or hyperboloid convex body, and these convex body 12 tops have more a plane 13; These body 10 inboards are an incidence surface 14, this incidence surface 14 has a groove 15, can supply a ccontaining light source 20 in this groove 15, this groove 15 is formed with at least one curved surface 151 in this incidence surface 14, the curved surface 151 of this groove 15 is a taper surface, hyperboloid or asymmetric curved surface, and a bottom surface 152 that is connected with this curved surface 151 and an end face 153, make light source 20 see through the luminous intensity distribution state that this body 10 forms off-axis and optically focused.
These body 10 grooves 15 places more connect a base 16, and these base 16 both sides are respectively to convexing with a joint pin 17 away from these groove 15 directions, and these body 10 outsides more are formed with an atomizing layer 18.
After understanding above-mentioned this case detailed structure, below describe in detail one by one at the operating principle of this case:
See also Fig. 3, optical lens body 10 is designed to the tool groove that Open Side Down 15, to provide the light source 20 can direct sheathed binding, and utilize at groove 15 tip designs one asymmetric curved surface 151, be able to wherein ccontaining for light source 20, again with an asymmetric curved surface 151 as incidence surface 14, carry out the form of dispersing of refraction for the first time, emphasis is to make the light of upwards dispersing 21 through reflection convergence optical axis 100, multiple carry out for the second time gradually the light 21 of convergence optical axis 100 by exiting surface 11 and disperse, the design of exiting surface 11, also have and phase down this light 21 in the zones of different of the refraction angle of optical axis 100, the light 21 that light source 20 is dispersed can provide and be off-axis up and down and both sides are the light-emitting area of evenly dispersing, converge light source 20 and send the back in the rectangular light field of external world's formation essence, its illumination shape is like one trapezoidal (as shown in Figure 5).
See also Fig. 4, the utility model is implemented another section signal of aspect, the light 21 that light source 20 sends is dissipated into this bottom surface 152 and this end face 153, dissymmetrical structure by these curved surface 151 formation, and because of this end face 153 height greater than these bottom surface 152 height, most of light 21 that design is dissipated into this end face 153 will disperse its deflection optical axis 100 through reflection or refraction; 21 small parts of light that are dissipated into this bottom surface 152 can or reflect and deflection optical axis 100 through refraction, and this light 21 also can be reflected or reflect in this plane 13 disperses its deflection optical axis 100, in brief, this asymmetric bottom surface 152 is designed to make this light 21 to form the aspect of dispersing of asymmetric off-axis with end face 153, with an asymmetric curved surface 151 as incidence surface 14, carry out the form of dispersing of refraction for the first time, emphasis is to make the light of upwards dispersing 21 through reflection convergence optical axis 100, multiple carry out for the second time gradually the light 21 of convergence optical axis 100 by exiting surface 11 and disperse, make and converge light source 20 and send the luminous intensity distribution state that the back forms off-axis and optically focused.This atomizing layer 18 can evenly spread the light of dispersing 21 again, increases broad degree of irradiation and the soft property of light source, and therefore light 21 intensity also can not reduce; 17 effects that can make a plurality of assemblings of the utility model of this joint pin.
Claims (9)
1. off-axis formula optical lens is characterized in that:
One body, this body outside is an exiting surface, this exiting surface is a convex body; This body inboard is an incidence surface, this incidence surface has a groove, a ccontaining light source in this groove, this groove is formed with at least one curved surface and an end face that is connected with this curved surface and a bottom surface in this incidence surface, makes light source see through the luminous intensity distribution state that this body forms off-axis and optically focused.
2. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this convex body top has more a plane.
3. according to the described off-axis formula of claim 1 optical lens, it is characterized in that the curved surface of this groove is a taper surface, a hyperboloid or an asymmetric curved surface.
4. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this convex body is the sphere convex body.
5. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this convex body is the aspheric surface convex body.
6. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this convex body is the hyperboloid convex body.
7. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this convex body is symmetrical convex body.
8. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this body recess place more connects a base, these base both sides are respectively to convexing with a joint pin away from this groove direction.
9. according to the described off-axis formula of claim 1 optical lens, it is characterized in that this body outside more is formed with an atomizing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202649165U CN201795424U (en) | 2010-07-21 | 2010-07-21 | Decentered optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202649165U CN201795424U (en) | 2010-07-21 | 2010-07-21 | Decentered optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201795424U true CN201795424U (en) | 2011-04-13 |
Family
ID=43850331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202649165U Expired - Lifetime CN201795424U (en) | 2010-07-21 | 2010-07-21 | Decentered optical lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201795424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI593576B (en) * | 2015-07-03 | 2017-08-01 | Min Hsiang Corp | Vehicle light body structure |
-
2010
- 2010-07-21 CN CN2010202649165U patent/CN201795424U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI593576B (en) * | 2015-07-03 | 2017-08-01 | Min Hsiang Corp | Vehicle light body structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191224 Address after: Cayman Islands Grand Cayman KY1-1205 802 West Bay Road Furong Bay Patentee after: Gaozhun International Technology Co., Ltd Address before: Taichung County, Taiwan, China Patentee before: Showin Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110413 |