CN104566214A - Polarizing lens of LED (light emitting diode) lamp - Google Patents
Polarizing lens of LED (light emitting diode) lamp Download PDFInfo
- Publication number
- CN104566214A CN104566214A CN201410731299.8A CN201410731299A CN104566214A CN 104566214 A CN104566214 A CN 104566214A CN 201410731299 A CN201410731299 A CN 201410731299A CN 104566214 A CN104566214 A CN 104566214A
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- CN
- China
- Prior art keywords
- led
- light
- plane
- incidence
- spreadlight lens
- 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.)
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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
- F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
- F21W2131/10—Outdoor lighting
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a polarizing lens of an LED (light emitting diode) lamp. The polarizing lens comprises an incident plane and an emergent plane, wherein the light emitted by an LED is irradiated into the polarizing lens through the incident plane, and is emitted out from the emergent plane, the incident plane and the emergent plane are free curve surfaces, and the light ray of the LED lamp is inclined to an effective use area. The polarizing lens has the advantages that the utilization rate of light is improved, the glare index is reduced, the light emitted by the LED meets the requirement of an actual road, and the travel safety is improved.
Description
Technical field
The present invention relates to optical lens technical field, particularly a kind of spreadlight lens of LED.
Background technology
Along with economic develop rapidly, traffic convenience, various tunnel also gets more and more.The normal pass in tunnel for the ease of pedestrian and the vehicles, is all provided with the Tunnel Lamp for tunnel illumination usually in tunnel.LED(light emitting diode) have that luminous intensity is high, consume energy few feature, so increasing at present, LED is applied to Tunnel Lamp field, to reach energy-conservation object.Meanwhile, what send due to LED is light beam instead of diverging light, so the situation in order to adapt to road surface, generally needs before LED, add lens.
But the lens that existing LED is installed are generally convex lens, its light sent by LED by the disperse function of convex lens becomes diverging light, and it is radiated at the hot spot formed on the ground is circle.But, due to the character of road in tunnel, its distribution of light of LED be arranged in tunnel wall is not well positioned to meet the demand of tunnel illumination: be difficult to avoid some light directive tunnel top, waste some light, affect the utilization rate of light, too increase the light such as diffusion, reflection simultaneously, add dazzle, reduce travel safety.
In view of this, need to provide a kind of light of LED that makes to the spreadlight lens effectively using regional dip.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art part, the object of the present invention is to provide a kind of spreadlight lens of LED, the light sent with the LED solving prior art can not meet the problem of tunnel illumination needs very well.
In order to achieve the above object, this invention takes following technical scheme:
The spreadlight lens of LED, wherein, described spreadlight lens comprises: the plane of incidence, light transmission medium and exit facet; The light that LED sends enters in light transmission medium via the plane of incidence, and then is penetrated by exit facet; The described plane of incidence and exit facet combine by several free form surfaces, and the light that LED is sent is to effectively using regional dip.
The spreadlight lens of described LED, wherein, described light transmission medium is glass.
The spreadlight lens of described LED, wherein, described light transmission medium is PMMA.
The spreadlight lens of described LED, wherein, described light transmission medium is PC.
The spreadlight lens of described LED, wherein, the uniformity of the light that the shape of the described plane of incidence and exit facet and LED send adapts
The spreadlight lens of LED provided by the invention, it comprises: the plane of incidence and exit facet; The light that LED sends is injected via the plane of incidence, is then penetrated by exit facet; The described plane of incidence and exit facet are free form surface, make the light of LED to effectively using regional dip.By described spreadlight lens, improve the utilization rate of light, reduce glare index, the demand of the more realistic road of the light that LED is sent, thus improve current security.
Accompanying drawing explanation
The schematic diagram of the spreadlight lens of the LED that Fig. 1 provides for the better enforcement of the present invention.
The light path of the LED that Fig. 2 provides for the embodiment of the present invention is at the schematic diagram along direction, track.
The schematic diagram of light path in direction, vertical track of the LED that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
The invention provides the spreadlight lens of a LED.For making object of the present invention, technical scheme and effect clearly, clearly, referring to accompanying drawing examples, the present invention is described in more detail.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Refer to Fig. 1, the schematic diagram of the spreadlight lens of the LED that Fig. 1 provides for the better enforcement of the present invention.As shown in the figure, the spreadlight lens of described LED comprises the plane of incidence 100, light transmission medium 300 and exit facet 200, the light that LED sends is injected in light transmission medium 300 via the plane of incidence 100, penetrated by exit facet 200 again, the plane of incidence and exit facet combine by several free form surfaces, and plane of incidence local can increase polarisation rib.
Particularly, the described plane of incidence 100 in embodiments of the present invention, for strip curved-surface structure, it ensures that the light of LED incidence can both enter in the plane of incidence, described exit facet is the combination of several free form surfaces, and adopt between its free form surface and seamlessly transit design, the shape of the described plane of incidence and exit facet is all in mal-distribution, ensure light that LED sends via the plane of incidence to the light path of exit facet also in mal-distribution, can as required to effectively using regional dip from the light of exit facet injection.
For convenience of description, see also Fig. 2 and Fig. 3, Fig. 2 with Fig. 3 is respectively the light path of the LED that described spreadlight lens is housed at the schematic diagram along direction, track with direction, vertical track.As shown in Figure 2, the light sent as described LED10 via the polarisation effect of spreadlight lens 20 after, in longitudinal illumination direction (namely along direction, track), the light that it is penetrated is banking.Identical with its principle, shown in Fig. 3 in direction, vertical track, it is by the polarisation effect of spreadlight lens 20, the light that LED10 is sent also secundly.Because Tunnel Lamp is generally mounted in one side of tunnel wall, it needs the region (namely effectively using region) irradiated also to be asymmetric, it must be partial to one side wherein, and have employed spreadlight lens provided by the invention, can according to the installation situation of Tunnel Lamp, the light that LED is sent is to effectively using regional dip.
By the spreadlight lens of LED provided by the invention (in the present embodiment, described LED is LED tunnel lamp, understandably, described LED also can be street lamp etc.), realize LED light in direction, vertical track with along the polarisation in the both direction of direction, track, more optical energy irradiation is made effectively to use on region, reduce the waste of light, reduce diffusion, scattered beam, more efficient on the one hand, reduce diffusion, scattered beam on the other hand, reduce glare index.
Be understandably, the plane of incidence of LED of the present invention and the shape of exit facet can set according to actual needs (i.e. the installation situation, road conditions etc. of LED), as long as ensure the polarisation effect by the plane of incidence and exit facet of light that LED sends, to effectively using regional dip.
Further, described light transmission medium can be glass, PC(Polycarbonate polycarbonate) or any one of PMMA (polymethyl methacrylate also claims lucite), its selection can set according to actual needs.Certainly, be understandable that, described material is not limited to this, can adopt different media according to prior art and actual needs.In addition, the uniformity of the light that the shape of the described plane of incidence and exit facet and LED send adapts, citing in fact, when road is wider or require LED to be arranged on compare by edge time, according to the combination of shapes setting of the plane of incidence and exit facet, the light that LED is sent mainly concentrates on the central authorities of road, along light intensity on road direction in piling distribution, and perpendicular on road direction, require that the local light intensity of irradiating citing far away is stronger, make the illumination that is radiated on road more even like this.
The spreadlight lens of LED provided by the invention, it comprises: the plane of incidence and exit facet; The light that LED sends is injected via the plane of incidence, is then penetrated by exit facet; The described plane of incidence and exit facet are free form surface, make the light of LED to effectively using regional dip.By described spreadlight lens, improve the utilization rate of light, reduce glare index, the demand of the more realistic road of the light that LED is sent, thus improve current security.
Be understandable that, for those of ordinary skills, can be equal to according to technical scheme of the present invention and inventive concept thereof and replace or change, and all these change or replace the protection domain that all should belong to the claim appended by the present invention.
Claims (5)
1. a spreadlight lens for LED, is characterized in that, described spreadlight lens comprises: the plane of incidence, light transmission medium and exit facet; The light that LED sends enters in light transmission medium via the plane of incidence, and then is penetrated by exit facet; The described plane of incidence and exit facet combine by several free form surfaces, and the light that LED is sent is to effectively using regional dip.
2. the spreadlight lens of LED according to claim 1, is characterized in that: described light transmission medium is glass.
3. the spreadlight lens of LED according to claim 1, is characterized in that: described light transmission medium is PMMA.
4. the spreadlight lens of LED according to claim 1, is characterized in that: described light transmission medium is PC.
5. the spreadlight lens of LED according to claim 1, is characterized in that: the uniformity of the light that the shape of the described plane of incidence and exit facet and LED send adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731299.8A CN104566214A (en) | 2014-12-05 | 2014-12-05 | Polarizing lens of LED (light emitting diode) lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410731299.8A CN104566214A (en) | 2014-12-05 | 2014-12-05 | Polarizing lens of LED (light emitting diode) lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104566214A true CN104566214A (en) | 2015-04-29 |
Family
ID=53082920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410731299.8A Pending CN104566214A (en) | 2014-12-05 | 2014-12-05 | Polarizing lens of LED (light emitting diode) lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104566214A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568001A (en) * | 2016-12-09 | 2017-04-19 | 厦门通士达照明有限公司 | Optical structure of embedded low-glare LED lamp with high photosynthetic efficiency |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110103070A1 (en) * | 2009-10-29 | 2011-05-05 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Led module |
| CN102980135A (en) * | 2012-11-01 | 2013-03-20 | 中国科学院光电技术研究所 | Light distribution lens for LED light source road lighting |
| CN203628521U (en) * | 2013-11-13 | 2014-06-04 | 佛山市中山大学研究院 | LED polarized lens |
-
2014
- 2014-12-05 CN CN201410731299.8A patent/CN104566214A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110103070A1 (en) * | 2009-10-29 | 2011-05-05 | Fu Zhun Precision Industry (Shen Zhen) Co., Ltd. | Led module |
| CN102980135A (en) * | 2012-11-01 | 2013-03-20 | 中国科学院光电技术研究所 | Light distribution lens for LED light source road lighting |
| CN203628521U (en) * | 2013-11-13 | 2014-06-04 | 佛山市中山大学研究院 | LED polarized lens |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106568001A (en) * | 2016-12-09 | 2017-04-19 | 厦门通士达照明有限公司 | Optical structure of embedded low-glare LED lamp with high photosynthetic efficiency |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |
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| WD01 | Invention patent application deemed withdrawn after publication |