CN103133991A - Light-emitting diode (LED) uniform illumination optical lens - Google Patents
Light-emitting diode (LED) uniform illumination optical lens Download PDFInfo
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- CN103133991A CN103133991A CN201110393545XA CN201110393545A CN103133991A CN 103133991 A CN103133991 A CN 103133991A CN 201110393545X A CN201110393545X A CN 201110393545XA CN 201110393545 A CN201110393545 A CN 201110393545A CN 103133991 A CN103133991 A CN 103133991A
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- led
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- uniform illumination
- illumination optical
- optical lens
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Abstract
The invention discloses a light-emitting diode (LED) uniform illumination optical lens. An inner concave opening is arranged on the lower bottom surface of the lens, and an LED is arranged inside the inner concave opening. Refraction surfaces and reflection surfaces are arranged on the inner surface of the lens and the outer surface of the lens, wherein the refraction surfaces are used for modulating lights which are given out by the LED and form an intersection angle of 0-45 degrees with a principal optic axis; and the reflection surfaces are used for modulating lights which are given out by the LED and form an intersection angle of 45-90 degrees with the principal optic axis. The LED uniform illumination optical lens has the advantages of being simple in structure, compact, small and exquisite in volume, reasonable in design, low in cost and long in service life. The large-scale uniform illumination at a target surface is achieved, and the utilization field and efficiency of the LED are further broadened and improved.
Description
Technical field
The present invention relates to a kind of optical lens, especially relate to a kind of LED Uniform Illumination optical lens.
Background technology
Due to size and energy-conservation aspect advantage, increasing illuminator uses LED as light source, but wherein how Uniform Illumination and the taking full advantage of of luminous energy of realize target face are urgent problems in the LED illumination system layout.LED-based secondary optics element, the key technology that addresses this problem just plays vital effect to the performance of final illuminating device and product.Can effectively modulate the light distribution characteristic of LED light source for the secondary optical design of LED, make its optical field distribution satisfy lighting demand on a large scale.In actual illumination, all require Uniform Illumination such as projection lamp, reading lamp, venue illumination, indoor illumination, therefore, could satisfy the actual illumination demand by giving the specific secondary optics camera lens of the outside installation of LED, and the advantages such as LED energy-conserving and environment-protective, flexible durable are found full expression.In prior art, immature due to the optical lens technology limited promoting the use of of LED.
Summary of the invention
Technical problem to be solved by this invention is for above-mentioned deficiency of the prior art, a kind of LED Uniform Illumination optical lens is provided, it is simple in structure, volume compact is small and exquisite, reasonable in design, realize that cost is low, long service life, realized on target face Uniform Illumination on a large scale, further widen and improved LED utilize field and utilization ratio.
For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of LED Uniform Illumination optical lens, it is characterized in that: be provided with the indent opening on the bottom surface of described lens, be placed with LED in described indent opening, the surfaces externally and internally of described lens be provided with for LED is sent with the primary optical axis angle be the refractive surface modulated of the light of 0-45 ° and be used for to send with the primary optical axis angle be the reflecting surface that the light of 45 °-90 ° is modulated.
Above-mentioned a kind of LED Uniform Illumination optical lens is characterized in that: the head portion of described indent opening is that border circle and axle clamp angle, lens centre are the free form surface of 45 °, and the latter half of described indent opening is the hemisphere face take the LED loca as the centre of sphere.
Above-mentioned a kind of LED Uniform Illumination optical lens, it is characterized in that: being shaped as of described lens is similar round table-like, and the outer surface of described lens is free form surface.
Above-mentioned a kind of LED Uniform Illumination optical lens is characterized in that: the radius of described lens upper bottom surface equates with the height of lens, and the edge of the edge of described lens bottom surface and described indent opening coincides.
Above-mentioned a kind of LED Uniform Illumination optical lens is characterized in that: the radius of described lens upper bottom surface is 1.1～1.5 times of bottom surface radius.
Above-mentioned a kind of LED Uniform Illumination optical lens, it is characterized in that: described lens are made by glass or plastics.
Above-mentioned a kind of LED Uniform Illumination optical lens, it is characterized in that: described glass is optical glass.
The present invention compared with prior art has the following advantages:
1, the present invention is simple in structure, and volume compact is small and exquisite, and is reasonable in design.
2, the present invention can send LED with the primary optical axis angle be that in 0～45 ° and 45 °～90 ° scopes, luminous energy is modulated, realized on target face Uniform Illumination on a large scale.
3, the present invention is made by glass or plastics, and its glass is optical glass, need not to apply highly reflective material, helps to reduce manufacturing cost.
4, of the present inventionly realize that cost is low, long service life.
5, the present invention is directed to the requirement of characteristics and the actual illumination of LED light source, the secondary optics element that design is necessary, LED luminous energy is modulated again, is made LED can be used for the occasions such as venue illumination, room lighting, further widen and improved LED utilize field and utilization ratio.
In sum, the present invention is simple in structure, and volume compact is small and exquisite, and is reasonable in design, realizes that cost is low, and long service life has realized on target face Uniform Illumination on a large scale, further widen and improved LED utilize field and utilization ratio.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is stereogram of the present invention.
Fig. 2 is internal structure schematic diagram of the present invention.
Description of reference numerals:
The 1-lens; 2-indent opening; 3-LED.
The specific embodiment
As depicted in figs. 1 and 2, be provided with indent opening 2 on the bottom surface of lens 1 of the present invention, be placed with LED 3 in described indent opening 2, the surfaces externally and internally of described lens 1 be provided with for to LED 3 that send with the primary optical axis angle be the refractive surface modulated of the light of 0～45 ° and be used for to send with the primary optical axis angle be the reflecting surface that the light of 45 °～90 ° is modulated, respectively to LED 3 that send with the primary optical axis angle be that in 0～45 ° and 45 °～90 ° scopes, luminous energy is modulated, realized on target face Uniform Illumination on a large scale.
As depicted in figs. 1 and 2, in the present embodiment, the head portion of described indent opening 2 is border circle is the free form surface of 45 ° with lens 1 central shaft angle, this face make in LED 3 emergent lights with 45 ° of scopes of primary optical axis angle in the light redistribution, the Uniform Illumination in realize target zone; The latter half of described indent opening 2 is the hemisphere face take the LED3 loca as the centre of sphere, and LED 3 emergent lights through this face, deviation do not occur.Being shaped as of described lens 1 is similar round table-like, the outer surface of described lens 1 is free form surface, guarantee by the latter half light of LED 3 outgoing by LED 3 outgoing with optical axis at 45 °～90 ° of scopes in light occur evenly to reflex to the target area after total reflection through it.The radius of described lens 1 upper bottom surface equates with the height of lens 1, and the edge of described lens 1 bottom surface and the edge of described indent opening 2 coincide.The radius of described lens 1 upper bottom surface is 1.1～1.5 times of bottom surface radius, and the lens volume compact is small and exquisite.
As depicted in figs. 1 and 2, in the present embodiment, described lens 1 are made by glass or plastics.Described glass is optical glass, need not to apply highly reflective material, helps to reduce manufacturing cost.
Realization of the present invention makes LED can be used for the occasions such as venue illumination, room lighting, further widen and improved LED utilize field and utilization ratio.
The above; it is only preferred embodiment of the present invention; be not that the present invention is imposed any restrictions, every any simple modification, change and equivalent structure of above embodiment being done according to the technology of the present invention essence changes, and all still belongs in the protection domain of technical solution of the present invention.
Claims (7)
1. LED Uniform Illumination optical lens, it is characterized in that: be provided with indent opening (2) on the bottom surface of described lens (1), be placed with LED (3) in described indent opening (2), the surfaces externally and internally of described lens (1) be provided with for LED (3) is sent with the primary optical axis angle be the refractive surface modulated of the light of 0～45 ° and be used for to send with the primary optical axis angle be the reflecting surface that the light of 45 °～90 ° is modulated.
2. according to a kind of LED Uniform Illumination optical lens claimed in claim 1, it is characterized in that: the head portion of described indent opening (2) is that border circle and lens (1) central shaft angle are the free form surface of 45 °, and the latter half of described indent opening (2) is the hemisphere face take LED (3) loca as the centre of sphere.
3. according to the described a kind of LED Uniform Illumination optical lens of claim 1 or 2, it is characterized in that: being shaped as of described lens (1) is similar round table-like, and the outer surface of described lens (1) is free form surface.
4. according to a kind of LED Uniform Illumination optical lens claimed in claim 3, it is characterized in that: the radius of described lens (1) upper bottom surface equates with the height of lens (1), and the edge of described lens (1) bottom surface and the edge of described indent opening (2) coincide.
5. according to a kind of LED Uniform Illumination optical lens claimed in claim 4, it is characterized in that: the radius of described lens (1) upper bottom surface is 1.1～1.5 times of bottom surface radius.
6. according to claim 1,2,4 or 5 described a kind of LED Uniform Illumination optical lenses, it is characterized in that: described lens (1) are made by glass or plastics.
7. according to a kind of LED Uniform Illumination optical lens claimed in claim 6, it is characterized in that: described glass is optical glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110393545XA CN103133991A (en) | 2011-12-01 | 2011-12-01 | Light-emitting diode (LED) uniform illumination optical lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110393545XA CN103133991A (en) | 2011-12-01 | 2011-12-01 | Light-emitting diode (LED) uniform illumination optical lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103133991A true CN103133991A (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110393545XA Pending CN103133991A (en) | 2011-12-01 | 2011-12-01 | Light-emitting diode (LED) uniform illumination optical lens |
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| CN (1) | CN103133991A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519882A (en) * | 2018-11-09 | 2019-03-26 | 创益智造（深圳）科技有限公司 | A kind of optical lens and the lighting device with the optical lens |
-
2011
- 2011-12-01 CN CN201110393545XA patent/CN103133991A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109519882A (en) * | 2018-11-09 | 2019-03-26 | 创益智造（深圳）科技有限公司 | A kind of optical lens and the lighting device with the optical lens |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130605 |