CN106287291B - LED light guiding lens - Google Patents
LED light guiding lens Download PDFInfo
- Publication number
- CN106287291B CN106287291B CN201610629207.4A CN201610629207A CN106287291B CN 106287291 B CN106287291 B CN 106287291B CN 201610629207 A CN201610629207 A CN 201610629207A CN 106287291 B CN106287291 B CN 106287291B
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- CN
- China
- Prior art keywords
- light guiding
- led light
- strip
- guiding lens
- column
- 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
Abstract
The invention discloses a kind of LED light guiding lens, LED light guiding lens include the column for the strip being sequentially connected, flat cylindrical body and hemisphere；The column of strip becomes larger from one end to the other side, the relatively large one end of strip column connects flat cylindrical body, the other end of flat cylindrical body connects hemisphere, hemispheroidal spherical surface or smooth surface are the light-emitting surface of LED light guiding lens, the column of strip, flat cylindrical body and hemisphere coaxial arrangement；The side of the column of strip is equipped with cyclic annular wavy microgroove, and cyclic annular wavy microgroove extends from the relatively small one end of strip column to the relatively large one end of strip column, cyclic annular wavy microgroove rotational symmetry；LED light guiding lens rotational symmetry.LED light guiding lens of the invention carry out light mixing to light by cyclic annular wavy microgroove, realize good light mixing, while can eliminate original light guiding lens and occur the problem of various trace of blood shape miscellaneous spots in light mixing.
Description
Technical field
The present invention relates to LED illumination lamp technical fields, and in particular to a kind of LED light guiding lens.
Background technique
Lens are to be made according to the refraction of light, reflexive property, and change optical field distribution for realizing according to wish
Purpose.Lens can be generally divided into three categories according to the change effect category to light field: convergent type lens (such as convex lens),
Divergence form lens (such as concavees lens) and free-form surface lens (such as asymmetric light-distribution lens, street lamp lens).
Existing light guiding lens are mostly strip, however the light guiding lens of strip will appear various trace of blood shapes in light mixing
Miscellaneous spot, it is past in the prior art currently, in order to solve the problems, such as that the light guiding lens of strip occur trace of blood shape miscellaneous spot in light mixing
Toward by light mixing frosted structure setting the light guiding lens of strip exit positions, to solve the problems, such as trace of blood shape miscellaneous spot, but
The light mixing efficiency for reducing the light guiding lens of strip, runs counter to desire.
Summary of the invention
It is an object of the invention to overcome above-mentioned the deficiencies in the prior art, a kind of LED light guiding lens are provided, the LED is guide-lighting
The light guiding lens that lens can eliminate strip occur the problem of trace of blood shape miscellaneous spot in light mixing.
In order to achieve the above objectives, The technical solution adopted by the invention is as follows: LED light guiding lens, which is characterized in that described
LED light guiding lens include the column for the strip being sequentially connected, flat cylindrical body and hemisphere；
The column of strip becomes larger from one end to the other side, and the relatively large one end connection of strip column is flat
Cylindrical body, the other end of flat cylindrical body connects hemisphere, and hemispheroidal spherical surface or smooth surface are LED guide-lighting thoroughly
The light-emitting surface of mirror, the column of strip, flat cylindrical body and hemisphere coaxial arrangement；
The side of the column of strip is equipped with cyclic annular wavy microgroove, and cyclic annular wavy microgroove is from strip column
The relatively small one end of body extends to the relatively large one end of strip column, cyclic annular wavy microgroove rotational symmetry；
LED light guiding lens rotational symmetry.
Further, the shape of the wavy microgroove of ring-type of any cross section of the column of strip is identical.
Further, cyclic annular wavy microgroove is fold curve, and fold curve is sine curve, sine curve satisfaction side
JourneyWherein, R is distance of the point apart from symmetrical centre on curve, and θ is orientation angles, R0For on curve
Average distance of the point apart from symmetrical centre, A are the amplitude of fold, and T is the period of fold.
Further, cyclic annular wavy microgroove is fold curve, fold curve by multiple interpolated points by multinomial or
Piecewise polynomial curve matching, at least 3 interpolated points in a cycle of fold curve.
Further, hemispheroidal radius is greater than the radius of the relatively large one end end face of strip column.
Further, the LED light guiding lens are integrally formed.
Further, the LED light guiding lens are made of quartz material.
Further, the length of the LED light guiding lens is 30-40mm.
Further, the column of strip is smooth surface in the partially polished processing close to flat cylindrical body.
Further, the length of the column polishing treatment part of strip be strip column body length 1/4 to
1/3。
Beneficial effects of the present invention:
A kind of LED light guiding lens of the present invention are provided with cyclic annular wave in the side of the column of LED light guiding lens strip
The microgroove of shape carries out light mixing to light by cyclic annular wavy microgroove, has broken the light guiding lens knob of original rotational symmetry
The rule for measuring (skewness) conservation, realizes good light mixing, at the same the structure of cyclic annular wavy microgroove can eliminate it is original
Light guiding lens occur the problem of various trace of blood shape miscellaneous spots in light mixing；
The column of strip can be eliminated in the partially polished processing close to flat cylindrical body since mismachining tolerance is made
At the radial problem in hot spot edge.
Detailed description of the invention
Fig. 1 is the front view of LED light guiding lens of the present invention；
Fig. 2 is the schematic perspective view of LED light guiding lens of the present invention；
Fig. 3 is the bottom view of LED light guiding lens of the present invention；
Fig. 4 is that cyclic annular wavy microgroove of the invention is sinusoidal schematic diagram；
Fig. 5 is that wavy microgroove of the invention cyclic annular by multiple interpolated points passes through multinomial or piecewise polynomial curve matching
Partial schematic diagram；
Fig. 6 is the light path schematic diagram of the light guiding lens of the strip of the prior art；
Fig. 7 is the light path schematic diagram that the side of the column of strip of the present invention is provided with cyclic annular wavy microgroove；
Fig. 8 is the front view of another embodiment of LED light guiding lens of the present invention；
Fig. 9 is the schematic perspective view of another embodiment of LED light guiding lens of the present invention；
Figure 10 is the hot spot Se Situ of LED light guiding lens of the present invention；
Figure 11 is the hot spot Se Situ of another embodiment of LED light guiding lens of the present invention.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.
Embodiment one
Referring to figure 1, figure 2 and figure 3, a kind of LED light guiding lens of the present invention, LED light guiding lens rotational symmetry, including successively phase
Column 11, the flat cylindrical body 12 and hemisphere 13 of strip even；The column 11 of strip is from one end to another
End becomes larger, and the side of the column 11 of strip is equipped with cyclic annular wavy microgroove 11a, cyclic annular wavy microgroove 11a
One end relatively small from strip column extends to the relatively large one end of strip column, cyclic annular wavy microgroove 11a
Symmetrically；
The relatively large one end of strip column 11 connects flat cylindrical body 12, and the other end of flat cylindrical body 12 connects
Hemisphere 13 is connect, the spherical surface or smooth surface of hemisphere 13 are the light-emitting surface of LED light guiding lens of the present invention, the column of strip
Shape body 11, flat cylindrical body 12 and hemisphere 13 are coaxially disposed.
Referring to Fig. 6, Fig. 7 and Figure 10, LED light guiding lens of the invention are provided with ring in the side of the column 11 of strip
The wavy microgroove 11a of shape carries out light mixing to light by cyclic annular wavy microgroove 11a, helps speed up light mixing speed,
More preferably color blending effect is obtained under shorter light mixing distance, increases total reflection number of the light in equal height, and enhancing is guide-lighting
The colour mixture ability of column, while the light extraction efficiency of light-guiding pillar will not be reduced again, break the light guiding lens knob of original rotational symmetry
The rule for measuring (skewness) conservation, realizes good light mixing；Also, the structure of cyclic annular wavy microgroove 11a can be eliminated
Original light guiding lens occur the problem of various trace of blood shape miscellaneous spots in light mixing.
Referring to fig. 4 and Fig. 5, in the present embodiment, cyclic annular wavy microgroove 11a is fold curve, and fold curve is positive
Chord curve passes through multinomial or piecewise polynomial curve matching by multiple interpolated points.When fold curve is sine curve, just
Chord curve meets equationWherein, R is distance of the point apart from symmetrical centre on curve, and θ is azimuth
Degree, R0For average distance of the point apart from symmetrical centre on curve, A is the amplitude of fold, and T is the period of fold, the amplitude A of fold
Can be fixed value (periodicity), or on-fixed value (aperiodicity)；
When fold curve passes through multinomial or piecewise polynomial curve matching by multiple interpolated points, guarantee each period phase
The high-order continuity at place is connect, at least 3 interpolated points, the shape in each period in a cycle of fold curve can be phase
Same (periodicity), is also possible to different (aperiodicity)；
In general, the more LED light guiding lens light mixing abilities of periodicity are stronger.
Referring to figure 1, figure 2 and figure 3, in the present embodiment, LED light guiding lens are integrally formed, using quartz material system
At the length of LED light guiding lens is 30-40mm；The ring-type of any cross section of the column 11 of strip in LED light guiding lens
The shape of wavy microgroove 11a is identical, further improves the light mixing effect of cyclic annular wavy microgroove 11a structure；Hemisphere
The radius of body 13 is greater than the radius of the relatively large one end end face of strip column 11, ensure that the light mixing effect of LED light guiding lens
Fruit.
Embodiment two
Referring to fig. 4, Fig. 5, Fig. 8 and Fig. 9, the difference between this embodiment and the first embodiment lies in: the column 11 of strip exists
It is smooth surface, the length of the 11 polishing treatment part of column of strip close to the partially polished processing of flat cylindrical body 12
Degree is the 1/4 to 1/3 of 11 length of column of strip.
The column 11 of LED light guiding lens strip close to flat cylindrical body 12 partially polished processing, be because
Radial structure meeting work in-process deforms, and during the cooperation zoom lens use of LED light guiding lens, zoom stroke
Process to be the equal of zoom lens be imaged in the light guiding lens different height position LED, can be by light caused by this processing flaw
The deformation of line is imaged out, and the column 11 of strip can in the mode of the partially polished processing close to flat cylindrical body 12
Imaging region is being become smooth part, this dentation flaw would not occur.
LED light guiding lens strip column 11 close to the partially polished processing of flat cylindrical body 12, form
The LED light guiding lens of the existing ring-type of the column of one strip wavy microgroove 11a part and smooth surface portion.Strip
The top of column 11 part of shape is processed by shot blasting, can eliminate as caused by mismachining tolerance that hot spot edge is radial to ask
Topic；And the LED light guiding lens for remaining the cyclic annular wavy microgroove 11a of remainder setting remain compared with embodiment one
Original length of lens is short, light mixing effect is good, is not required to the advantages of addition abrasive segments, while also eliminating LED light guiding lens in zoom
The defect of the trace of blood shape miscellaneous spot occurred in the process improves the uniformity of chromaticity and aesthetics of hot spot.
As shown in figure 11, Figure 11 is the hot spot Se Situ of the present embodiment LED light guiding lens.
Referring to Fig. 8 and Fig. 9, the length of the 11 polishing treatment part of column of LED light guiding lens strip is strip
The 1/4 to 1/3 of 11 length of column, because very few polishing can reduce uniformity degree, and excessive polishing can reduce entirety
Uniformity.
In the present embodiment, the column 11 of strip is equipped with the index path ginseng of the part of cyclic annular wavy microgroove 11a
See Fig. 7, the index path of the part of polishing treatment is then referring to Fig. 6 on the column 11 of strip.
According to the disclosure and teachings of the above specification, those skilled in the art in the invention can also be to above-mentioned embodiment party
Formula is changed and is modified.Therefore, the invention is not limited to the specific embodiments disclosed and described above, to the one of invention
A little modifications and changes should also be as falling into the scope of the claims of the present invention.In addition, although being used in this specification
Some specific terms, these terms are merely for convenience of description, does not limit the present invention in any way.
Claims (10)
1.LED light guiding lens, which is characterized in that the LED light guiding lens include the column, flat for the strip being sequentially connected
Cylindrical body and hemisphere；
The column of strip becomes larger from one end to the other side, and the relatively large one end of strip column connects flat circle
Cylinder, the other end of flat cylindrical body connect hemisphere, and hemispheroidal spherical surface or smooth surface are LED light guiding lens
Light-emitting surface, the column of strip, flat cylindrical body and hemisphere coaxial arrangement；
The side of the column of strip is equipped with cyclic annular wavy microgroove, and cyclic annular wavy microgroove is from strip column phase
Small one end is extended to the relatively large one end of strip column, cyclic annular wavy microgroove rotational symmetry；
LED light guiding lens rotational symmetry.
2. LED light guiding lens according to claim 1, which is characterized in that any cross section of the column of strip
The shape of cyclic annular wavy microgroove is identical.
3. LED light guiding lens according to claim 1 or 2, which is characterized in that cyclic annular wavy microgroove is that fold is bent
Line, fold curve are sine curve, and sine curve meets equationWherein, R is on curve
Distance of the point apart from symmetrical centre, θ is orientation angles, R0For average distance of the point apart from symmetrical centre on curve, A is fold
Amplitude, T are the period of fold.
4. LED light guiding lens according to claim 1 or 2, which is characterized in that cyclic annular wavy microgroove is that fold is bent
Line, fold curve pass through polynomial curve fitting by multiple interpolated points, at least 3 interpolations in a cycle of fold curve
Point.
5. LED light guiding lens according to claim 1, which is characterized in that hemispheroidal radius is greater than strip column
The radius of relatively large one end end face.
6. LED light guiding lens according to claim 1, which is characterized in that the LED light guiding lens are integrally formed.
7. LED light guiding lens according to claim 1 or 6, which is characterized in that the LED light guiding lens are using quartzy material
Material is made.
8. LED light guiding lens according to claim 1, which is characterized in that the length of the LED light guiding lens is 30-
40mm。
9. LED light guiding lens according to claim 1, which is characterized in that the column of strip is close to flat circle
The partially polished processing of cylinder is smooth surface.
10. LED light guiding lens according to claim 9, which is characterized in that the column polishing treatment part of strip
Length is the 1/4 to 1/3 of the column body length of strip.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610056075 | 2016-01-26 | ||
| CN2016100560750 | 2016-01-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287291A CN106287291A (en) | 2017-01-04 |
| CN106287291B true CN106287291B (en) | 2019-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610629207.4A Expired - Fee Related CN106287291B (en) | 2016-01-26 | 2016-07-31 | LED light guiding lens |
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| CN (1) | CN106287291B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108618631B (en) * | 2017-03-20 | 2021-12-17 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance and sterilization method |
| CN109143449B (en) * | 2017-06-15 | 2021-03-26 | 市光法雷奥（佛山）汽车照明系统有限公司 | Light guide device, lighting device and motor vehicle |
| CN107339621B (en) * | 2017-08-16 | 2023-06-16 | 常州市福兴电器有限公司 | LED lamp with light guide body |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798944A (en) * | 2003-04-02 | 2006-07-05 | 亚历山德罗斯·帕帕佐普洛斯 | Hybrid photovoltaic concentrating system with corrected total reflaction reflectors for every large concentrating ratios |
| CN203231244U (en) * | 2013-05-06 | 2013-10-09 | 蕙萰科技股份有限公司 | Light-guiding lens module |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI270992B (en) * | 2005-07-19 | 2007-01-11 | Chi Mei Optoelectronics Corp | Light emitting diode package and light guide pipe and backlight module and liquid crystal display device using the same |
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2016
- 2016-07-31 CN CN201610629207.4A patent/CN106287291B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1798944A (en) * | 2003-04-02 | 2006-07-05 | 亚历山德罗斯·帕帕佐普洛斯 | Hybrid photovoltaic concentrating system with corrected total reflaction reflectors for every large concentrating ratios |
| CN203231244U (en) * | 2013-05-06 | 2013-10-09 | 蕙萰科技股份有限公司 | Light-guiding lens module |
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| CN106287291A (en) | 2017-01-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhu Daoyong Inventor after: Wang Xuejiao Inventor after: Ling Minjie Inventor after: Zhou Ye Inventor before: Zhu Daoyong Inventor before: Luo Tao Inventor before: Ling Minjie Inventor before: Zhou Ye |
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| COR | Change of bibliographic data | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190614 Termination date: 20200731 |