CN103851533A - Banded LED lamp optical cover with free-form surface - Google Patents
Banded LED lamp optical cover with free-form surface Download PDFInfo
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- CN103851533A CN103851533A CN201210506837.4A CN201210506837A CN103851533A CN 103851533 A CN103851533 A CN 103851533A CN 201210506837 A CN201210506837 A CN 201210506837A CN 103851533 A CN103851533 A CN 103851533A
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- free
- form surface
- banded
- light fixture
- optical mask
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Abstract
The invention belongs to the technical field of lamp covers and particularly relates to a banded LED lamp optical cover with a free-form surface. The banded LED lamp optical cover with the free-form surface is formed by jointing a plurality of optical cover units; each optical cover unit is formed by jointing one or multiple free-form surface polyhedrons at different angles. The banded LED lamp optical cover with the free-form surface has the advantages that flux of LED light sources can be reasonably allocated, flux availability is improved, and LED lamp lighting quality is improved.
Description
Technical field
The invention belongs to light fixture face shield technical field, be specifically related to a kind of banded free-form surface LED light fixture optical mask.
Background technology
Light emitting diode (Light Emitting Diode, LED) is the luminous semiconductor diode of a kind of energy, be a kind of be directly the luminescent device of light and radiant energy electric energy conversion.Light emitting diode has many advantages: operating voltage is low, luminous efficiency, stable performance, life-span long, vibration resistance is strong, lightweight, volume is little.In recent years, LED, in solving all colours demonstration problem, more than white light LEDs has reached 100lm/W, has possessed all conditions that is applied to automotive lighting, traffic signals demonstration, LED demonstration and normal lighting field.LED has been widely used in the field such as traffic lights, the liquid crystal display back of the body light fixture, automotive lighting and normal lighting at present.But LED is not equal to LED light fixture, LED itself is spot light, can not directly apply to various lightings.
At LED lighting field, a lot of producers only covet LED street lamp electricity effect and ignored optical effect, be only concerned about that can light source normally light, and do not go to consider whether optics aspect reaches optics requirement.Especially there iing the field (LED street lamp, LED traffic lights, LED car headlamp, LED navigation light and LED automobile tail light etc.) of specific (special) requirements inner common especially to light fixture light intensity.Country has progressively set up national standard in the field of light fittings of special dimension, such as: there is GB14887-2003 standard in LED garage signal lamp field; In car headlamp field, there is GB4599-1994 standard etc.The clear and definite various performance requirements of various light fixtures, most importantly the light spot shape to light fixture, light distribution, the uniformity etc. have proposed requirement.
Conventional lamp illuminator has been carried out design and the exploration of optical design, mainly utilizes reflector or lens to realize the distribution of light fixture hot spot, light distribution and inhomogeneity control.In LED light fixture, because LED and conventional light source have very big-difference, the secondary optical design of LED light fixture is one of most important technology in LED lighting field, how reasonable distribution LED light source luminous flux, and then improve luminous flux utilization rate, be the problem that LED lighting field is needed solution badly.
Summary of the invention
The technical issues that need to address of the present invention are: a kind of banded free-form surface LED light fixture optical mask is provided, and it can reasonable distribution LED light source luminous flux, and then improves luminous flux utilization rate, improves LED lamp lighting quality.
Technical scheme of the present invention is as described below:
A kind of banded free-form surface LED light fixture optical mask, is formed by several optical mask unit spliceds; Described optical mask unit by before one or more free form surface polyhedrons then, be different angles and be spliced.
As preferred version,
Described free form surface polyhedron upper surface is free form surface, is arch; Lower surface is bottom surface; The different polyhedral free form surfaces of free form surface and bottom surface are different angles.The polyhedral bottom surface of described free form surface can be triangle or quadrangle or pentagon or hexagon or decagon or dodecagon or its combination.
Described banded free-form surface LED light fixture optical mask can adopt the transparent optical materials such as optical glass, PC, PMMA.
Beneficial effect of the present invention is:
Banded free-form surface LED light fixture optical mask of the present invention has been realized the distribution of LED light fixture hot spot, light distribution and inhomogeneity effective control, can reasonable distribution LED light source luminous flux, and then improve luminous flux utilization rate, significantly improve LED lamp lighting quality.
Accompanying drawing explanation
Fig. 1 a is banded free-form surface LED light fixture optical mask cellular construction schematic diagram of the present invention;
Fig. 1 b is the front view of Fig. 1 a;
Fig. 1 c is the side view of Fig. 1 a;
Fig. 1 d is the top view of Fig. 1 a;
Fig. 2 a is the free form surface polyhedral structure schematic diagram of the optical mask unit shown in Fig. 1 a;
Fig. 2 b is the front view of Fig. 2 a;
Fig. 2 c is the top view of Fig. 2 a.
The specific embodiment
Below in conjunction with drawings and Examples, banded free-form surface LED light fixture optical mask of the present invention is elaborated.
Banded free-form surface LED light fixture optical mask of the present invention is formed by several optical mask unit spliceds.
As shown in Fig. 1 a ~ Fig. 1 d, described optical mask unit by before one or more free form surface polyhedrons then, be different angles and be spliced.
As shown in Fig. 2 a ~ Fig. 2 c, the polyhedral surface parameter of described free form surface is calculated and is obtained according to the specific requirement of different lamps, and described Computation of surface parameters method is field of lamp illumination number personnel common practise.Free form surface polyhedron in the present embodiment, its upper surface is free form surface, is arch; Lower surface is bottom surface; The different polyhedral free form surfaces of free form surface and bottom surface are different angles.
The polyhedral bottom surface of described free form surface can be triangle or quadrangle or pentagon or hexagon or decagon or dodecagon or its combination.
The material of banded free-form surface LED light fixture optical mask is the transparent optical materials such as optical glass, PC, PMMA.
With the light fixture of banded free-form surface LED light fixture optical mask of the present invention, can be in conjunction with total reflection lens (TIR) or lens, can realize luminous flux and distribute control and the reasonable hot spot of luminous flux to distribute.In application, other obtain in the method for directional light, also can combine with the banded free-form surface LED light fixture optical mask in the present invention, obtain ideal effect.
Claims (5)
1. a banded free-form surface LED light fixture optical mask, is formed by several optical mask unit spliceds, it is characterized in that: described optical mask unit by before one or more free form surface polyhedrons then, be different angles and be spliced.
2. banded free-form surface LED light fixture optical mask according to claim 1, is characterized in that: described free form surface polyhedron upper surface is free form surface, is arch; Lower surface is bottom surface; The different polyhedral free form surfaces of free form surface and bottom surface are different angles.
3. banded free-form surface LED light fixture optical mask according to claim 2, is characterized in that: the polyhedral bottom surface of described free form surface is triangle or quadrangle or pentagon or hexagon or decagon or dodecagon or its combination.
4. banded free-form surface LED light fixture optical mask according to claim 1 and 2, is characterized in that: described banded free-form surface LED light fixture optical mask adopts transparent optical material.
5. banded free-form surface LED light fixture optical mask according to claim 4, is characterized in that: described transparent optical material is optical glass or PC or PMMA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506837.4A CN103851533A (en) | 2012-12-03 | 2012-12-03 | Banded LED lamp optical cover with free-form surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210506837.4A CN103851533A (en) | 2012-12-03 | 2012-12-03 | Banded LED lamp optical cover with free-form surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103851533A true CN103851533A (en) | 2014-06-11 |
Family
ID=50859508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210506837.4A Pending CN103851533A (en) | 2012-12-03 | 2012-12-03 | Banded LED lamp optical cover with free-form surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103851533A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308593A (en) * | 2020-03-30 | 2020-06-19 | 南京理工大学 | Ultra-thin reflective free-form surface design method for mobile phone lens |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200958718Y (en) * | 2006-05-24 | 2007-10-10 | 上海澳星照明电器制造有限公司 | Optical mask of multi-prism LED traffic signal light |
| CN203273679U (en) * | 2012-12-03 | 2013-11-06 | 核工业西南物理研究院 | Ribbon free-form surface LED (Light-Emitting Diode) lamp optical mask |
-
2012
- 2012-12-03 CN CN201210506837.4A patent/CN103851533A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200958718Y (en) * | 2006-05-24 | 2007-10-10 | 上海澳星照明电器制造有限公司 | Optical mask of multi-prism LED traffic signal light |
| CN203273679U (en) * | 2012-12-03 | 2013-11-06 | 核工业西南物理研究院 | Ribbon free-form surface LED (Light-Emitting Diode) lamp optical mask |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111308593A (en) * | 2020-03-30 | 2020-06-19 | 南京理工大学 | Ultra-thin reflective free-form surface design method for mobile phone lens |
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Application publication date: 20140611 |