CN104566205A - Lens and LED lamp using lens - Google Patents
Lens and LED lamp using lens Download PDFInfo
- Publication number
- CN104566205A CN104566205A CN201310479276.8A CN201310479276A CN104566205A CN 104566205 A CN104566205 A CN 104566205A CN 201310479276 A CN201310479276 A CN 201310479276A CN 104566205 A CN104566205 A CN 104566205A
- Authority
- CN
- China
- Prior art keywords
- lens
- line segment
- light
- central axis
- light inlet
- 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
- F21V5/046—Refractors for light sources of lens shape the lens having a rotationally symmetrical shape about an axis for transmitting light in a direction mainly perpendicular to this axis, e.g. ring or annular lens with light source disposed inside the ring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2101/00—Point-like light sources
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a lens and LED lamp using the lens. The lens is a ring-shaped lens which is arranged around a central axis and provided with a ring-shaped inner side surface and a ring-shaped outer side surface opposite to each other in the radial direction; the lens is provided with a light-in end and a light-out end opposite to each other in the direction of the central axis; an accommodating groove is formed in the light-in end; a light-in surface is formed on the groove wall of the accommodating groove; both the ring-shaped inner side surface and the ring-shaped outer side surface are total internal reflection surfaces and respectively formed in the way a first arc and a second arc rotate around the central axis for a circle; the light-in surface and the light-out surface are respectively formed in the way that a light-in section and a light-out section rotate around the central axis for a circle; the LED lamps are located at any position of the accommodating groove in the circumferential direction of the lens; after the light rays of the LED lamps are ejected through the lens, the light-out angles on the lens in the radial direction are the same, so that the number of the LED lamps only influences the illumination intensity of the LED lamps; after the light-out angles are determined, the LED lamps with different illumination requirements can use the lens, so that the product development cost is reduced.
Description
Technical field
The present invention relates to lighting field, particularly relate to a kind of lens and use the LED lamp of these lens.
Background technology
In LED illumination product, for realizing light distribution angle, need, on LED light source, to arrange optical lens.Optical lens is generally adopted made of plastic, and refractive index is generally between 1.4-1.6, through rational optical design, the light that LED sends can be constrained within certain angle, meet the requirement of area illumination.For middle high-capacity LED illuminating product, generally plurality of LEDs will be used.In prior art, optical lens is generally the justifying lens at many acupuncture points, for tandem product, in time needing the LED using a different number, a set of justifying lens can not meet the demands, and just need to develop many molds, and cause development cost too high like this, visible, in prior art, the commonality of justifying lens is poor.
Summary of the invention
Technical problem to be solved by this invention is, provides a kind of lens and uses the LED lamp of these lens, and when a LED number changes, its overall rising angle is constant, and commonality is strong, can reduce product development cost.
In order to solve the problems of the technologies described above, on the one hand, the invention provides a kind of lens, it is characterized in that, described lens are the ring-type arranged around a central axis, and it has ring medial surface diametrically and ring lateral surface, and described ring medial surface and described ring lateral surface are total internal reflection surface; Described ring medial surface to be rotated a circle around described central axis by one first camber line and forms, and described ring lateral surface to be rotated a circle around described central axis by one second camber line and forms;
Described lens have relative light inputting end and bright dipping end on direction, described central axis place, the end face of described light inputting end offers the storage tank for arranging light source, described storage tank is the ring-type arranged around described central axis, the cell wall of described storage tank forms an incidence surface, and described incidence surface to be rotated a circle around described central axis by a light inlet line segment and forms; Described bright dipping end is provided with exiting surface, and described exiting surface to be rotated a circle around described central axis by a bright dipping line segment and forms.
Wherein, described first camber line and described second camber line are about a symmetrical axisymmetrical, and the described axis of symmetry is parallel to described central axis; Described light inlet line segment and described bright dipping line segment are zhou duicheng tuxing, and symmetry axis is the described axis of symmetry.
Wherein, described first camber line and the second camber line arch upward in the direction away from each other; Distance on described first camber line and described second camber line between two symmetric points becomes large gradually along described light inputting end to the direction of described bright dipping end.
Wherein, described light inlet line segment comprises the first light inlet line segment, the second light inlet line segment and the 3rd light inlet line segment that connect successively; Described first light inlet line segment and described 3rd light inlet line segment are about described axis of symmetry symmetry, and described second light inlet line segment is the symmetric figure about described axis of symmetry symmetry; Distance on described first light inlet line segment and described 3rd light inlet line segment between two symmetric points diminishes gradually along described light inputting end to the direction of described bright dipping end.
Wherein, described first light inlet line segment and described 3rd light inlet line segment are straightway.
Wherein, described second light inlet line segment is camber line, arches upward to described light inputting end direction in its center.
Wherein, described bright dipping line segment is straightway.
On the other hand, the invention provides a kind of LED lamp, comprise aforesaid lens and multiple LED, multiple described LED is evenly arranged in the storage tank of described lens around the central axis of described lens.
Wherein, described LED lamp also comprises substrate, and described LED is fixed on described substrate, and multiple described LED is evenly arranged in described substrate around central axis, and described substrate is fixedly connected with the light inputting end of described lens.
Wherein, described substrate is the ring-type matched with described lens.
Lens provided by the invention and use the LED lamp of these lens, ring medial surface and ring lateral surface are total internal reflection surface, to be rotated a circle around central axis by the first camber line and the second camber line respectively and form, incidence surface and exiting surface to be rotated a circle around central axis by light inlet line segment and bright dipping line segment respectively and form, LED is positioned at the optional position of storage tank in the circumference of lens, rising angle in the radial direction of its light after lens injection on lens is all identical, therefore no matter the quantity of LED is how many, overall rising angle after lens also can not change, and only affect the intensity of illumination of LED lamp, after determining angular, the LED lamp of different illumination requirement all can adopt these lens, thus reduces product development cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the LED lamp that the preferred embodiment of the present invention provides;
Fig. 2 is the structural representation of lens in light inlet side of LED lamp in Fig. 1;
Fig. 3 is the axial section of LED lamp in Fig. 1;
The light distribution angle figure that Fig. 4 is the LED of LED lamp in Fig. 1 when being 15;
The light distribution angle figure that Fig. 5 is the LED of LED lamp in Fig. 1 when being 18;
The light distribution angle figure that Fig. 6 is the LED of LED lamp in Fig. 1 when being 18.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
See Fig. 1 to Fig. 3, be a kind of LED lamp that the preferred embodiment of the present invention provides, comprise lens 1, multiple LED 2 and substrate 3.LED 2 is fixed on substrate 3 and is connected with lens 1.
Lens 1 are the ring-type arranged around a central axis 9, and lens 1 have ring medial surface 11 diametrically and ring lateral surface 12.Ring medial surface 11 and ring lateral surface 12 are total internal reflection surface, the light of LED 2 can be made all to go out through bright dipping end-fire, to make full use of luminous energy.Ring medial surface 11 to be rotated a circle around central axis 9 by one first camber line 110 and forms, and ring lateral surface 12 to be rotated a circle around central axis 9 by one second camber line 120 and forms.
Lens 1 have relative light inputting end and bright dipping end on direction, central axis 9 place, the end face of light inputting end offers the storage tank 10 for arranging light source, storage tank 10 is the ring-type arranged around central axis 9, described multiple LED 2 is evenly arranged in storage tank 10 around the central axis 9 of lens 1, the cell wall of storage tank 10 forms an incidence surface, and incidence surface to be rotated a circle around central axis 9 by a light inlet line segment 130 and forms.Bright dipping end is provided with exiting surface, and exiting surface to be rotated a circle around central axis 9 by a bright dipping line segment 140 and forms.
Ring medial surface 11 and ring lateral surface 12 are total internal reflection surface, to be rotated a circle around central axis 9 by the first camber line 110 and the second camber line 120 respectively and form, the end of bright dipping is simultaneously provided with exiting surface, incidence surface and exiting surface to be rotated a circle around central axis 9 by light inlet line segment 130 and bright dipping line segment 140 respectively and form, LED 2 is positioned at the optional position of storage tank 10 in the circumference of lens 1, rising angle in the radial direction of its light after lens 1 penetrate on lens 1 is all identical, therefore no matter the quantity of LED 2 is how many, overall rising angle after lens 1 also can not change, and only affect the intensity of illumination of LED lamp 2.Light distribution angle figure when LED is 15 as shown in Figure 4; Light distribution angle figure when LED is 18 as shown in Figure 5; Light distribution angle figure when LED is 18 as shown in Figure 6, as can be seen here, LED lamp provided by the invention, when a LED number changes, the overall rising angle of light fixture can not change, and commonality is strong, after determining angular, the LED lamp of different illumination requirement all can adopt these lens 1, thus reduces product development cost.
First camber line 110 and the second camber line 120 are about the axis of symmetry 8 symmetry, and the axis of symmetry 8 is parallel to central axis 9; Light inlet line segment 130 and bright dipping line segment 140 are zhou duicheng tuxing, and symmetry axis is the described axis of symmetry 8, make the angle outside each LED 2 directive lens 1 ring identical with the angle in directive lens 1 ring, thus ensure the harmony of the outer luminous intensity distribution with ring in lens 1 ring.
First camber line 110 and the second camber line 120 arch upward in the direction away from each other, and the distance on the first camber line 110 and the second camber line 120 between two symmetric points becomes large along light inputting end to the direction of bright dipping end, gradually to make the light directive bright dipping end of LED 2.
Light inlet line segment 130 comprises the first light inlet line segment 131, the second light inlet line segment 132 and the 3rd light inlet line segment 133 that connect successively; First light inlet line segment 131 and the 3rd light inlet line segment 133 are about the described axis of symmetry 8 symmetry, and the second light inlet line segment 132 is the symmetric figure about the described axis of symmetry 8 symmetry.The direction of distance along light inputting end to bright dipping end on first light inlet line segment 131 and the 3rd light inlet line segment 133 between two symmetric points diminishes gradually, so that the processing preparation of storage tank 10.
First light inlet line segment 131 and the 3rd light inlet line segment 133 are straightway, to be convenient to the processing preparation of storage tank 10 further.Second light inlet line segment 132 is camber line, arches upward to light inputting end direction in its center, thus makes it have optically focused effect.
Bright dipping line segment 140 is straightway, thus can whole exiting surface be plane, can be convenient to the assembly connection with LED 2 tool miscellaneous part.
Whole lens 1 structure is simple, is convenient to processing preparation, and can ensures the overall rising angle of LED 2 tool.Light inlet line segment 130 is not limited to the present embodiment with the shape of bright dipping line segment 140, the difformity of the two can realize the different light distribution effect of lens 1, as optically focused or astigmatism etc., such as, the first light inlet line segment 131 and the 3rd light inlet line segment 133 also can be camber line or broken line; Second light inlet line segment 132 also can centered by the recessed camber line of bright dipping end to realize astigmatism, or straight line or broken line etc.; Light inlet line segment 130 and bright dipping line segment 140 also can be camber line.
LED 2 is fixed on substrate 3, and multiple LED 2 is evenly arranged in substrate 3 around central axis 9, and substrate 3 is fixedly connected with the light inputting end of lens 1, and makes LED 2 be arranged in storage tank.Substrate 3 is the ring-type matched with lens 1, to save material, reduces cost of manufacture.Further, substrate 3 is pcb board, and LED 2 is welded thereon.
Above-described embodiment, does not form the restriction to this technical scheme protection domain.The amendment done within any spirit at above-mentioned embodiment and principle, equivalently to replace and improvement etc., within the protection domain that all should be included in this technical scheme.
Claims (10)
1. lens, is characterized in that, described lens are the ring-type arranged around a central axis, and it has ring medial surface diametrically and ring lateral surface, and described ring medial surface and described ring lateral surface are total internal reflection surface; Described ring medial surface to be rotated a circle around described central axis by one first camber line and forms, and described ring lateral surface to be rotated a circle around described central axis by one second camber line and forms;
Described lens have relative light inputting end and bright dipping end on direction, described central axis place, the end face of described light inputting end offers the storage tank for arranging light source, described storage tank is the ring-type arranged around described central axis, the cell wall of described storage tank forms an incidence surface, and described incidence surface to be rotated a circle around described central axis by a light inlet line segment and forms; Described bright dipping end is provided with exiting surface, and described exiting surface to be rotated a circle around described central axis by a bright dipping line segment and forms.
2. lens according to claim 1, is characterized in that, described first camber line and described second camber line are about a symmetrical axisymmetrical, and the described axis of symmetry is parallel to described central axis; Described light inlet line segment and described bright dipping line segment are zhou duicheng tuxing, and symmetry axis is the described axis of symmetry.
3. lens according to claim 2, is characterized in that, described first camber line and the second camber line arch upward in the direction away from each other; Distance on described first camber line and described second camber line between two symmetric points becomes large gradually along described light inputting end to the direction of described bright dipping end.
4. lens according to claim 2, is characterized in that, described light inlet line segment comprises the first light inlet line segment, the second light inlet line segment and the 3rd light inlet line segment that connect successively; Described first light inlet line segment and described 3rd light inlet line segment are about described axis of symmetry symmetry, and described second light inlet line segment is the symmetric figure about described axis of symmetry symmetry; Distance on described first light inlet line segment and described 3rd light inlet line segment between two symmetric points diminishes gradually along described light inputting end to the direction of described bright dipping end.
5. lens according to claim 4, is characterized in that, described first light inlet line segment and described 3rd light inlet line segment are straightway.
6. lens according to claim 4, is characterized in that, described second light inlet line segment is camber line, arches upward to described light inputting end direction in its center.
7. lens according to claim 1, is characterized in that, described bright dipping line segment is straightway.
8. a LED lamp, is characterized in that, comprises the lens described in any one of claim 1 to 7 and multiple LED, and multiple described LED is evenly arranged in the storage tank of described lens around the central axis of described lens.
9. LED lamp according to claim 8, it is characterized in that, described LED lamp also comprises substrate, and described LED is fixed on described substrate, and multiple described LED is evenly arranged in described substrate around central axis, described substrate is fixedly connected with the light inputting end of described lens.
10. LED lamp according to claim 9, is characterized in that, described substrate is the ring-type matched with described lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479276.8A CN104566205A (en) | 2013-10-14 | 2013-10-14 | Lens and LED lamp using lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310479276.8A CN104566205A (en) | 2013-10-14 | 2013-10-14 | Lens and LED lamp using lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104566205A true CN104566205A (en) | 2015-04-29 |
Family
ID=53082911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310479276.8A Pending CN104566205A (en) | 2013-10-14 | 2013-10-14 | Lens and LED lamp using lens |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104566205A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084368A (en) * | 2015-10-23 | 2017-08-22 | 欧普照明股份有限公司 | Lens and light source module |
| JP2018198149A (en) * | 2017-05-24 | 2018-12-13 | シチズン時計株式会社 | Illumination device |
| CN111174179A (en) * | 2018-12-06 | 2020-05-19 | 深圳市海洋王照明工程有限公司 | Combined lens and LED lamp |
| WO2021068826A1 (en) * | 2019-10-09 | 2021-04-15 | 苏州欧普照明有限公司 | Led light distribution structure, light source module, and lamp |
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| CN101238325A (en) * | 2005-06-01 | 2008-08-06 | Ccs株式会社 | Light irradiation device |
| US20080310028A1 (en) * | 2007-06-18 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens for a light assembly |
| JP2009009926A (en) * | 2007-03-23 | 2009-01-15 | Toshiba Lighting & Technology Corp | Light emitting diode lighting system |
| CN101576230A (en) * | 2008-05-09 | 2009-11-11 | 富准精密工业(深圳)有限公司 | Light emitting diode illuminating device |
| CN101936501A (en) * | 2009-06-30 | 2011-01-05 | 富准精密工业(深圳)有限公司 | Light emitting diode module |
| NL2004732C2 (en) * | 2010-05-18 | 2011-11-21 | Ledexpert B V | LED MODULE AND LIGHTING LIGHT FOR SPORTS FIELD LIGHTING. |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101238325A (en) * | 2005-06-01 | 2008-08-06 | Ccs株式会社 | Light irradiation device |
| JP2009009926A (en) * | 2007-03-23 | 2009-01-15 | Toshiba Lighting & Technology Corp | Light emitting diode lighting system |
| US20080310028A1 (en) * | 2007-06-18 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens for a light assembly |
| CN101576230A (en) * | 2008-05-09 | 2009-11-11 | 富准精密工业(深圳)有限公司 | Light emitting diode illuminating device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084368A (en) * | 2015-10-23 | 2017-08-22 | 欧普照明股份有限公司 | Lens and light source module |
| JP2018198149A (en) * | 2017-05-24 | 2018-12-13 | シチズン時計株式会社 | Illumination device |
| CN111174179A (en) * | 2018-12-06 | 2020-05-19 | 深圳市海洋王照明工程有限公司 | Combined lens and LED lamp |
| WO2021068826A1 (en) * | 2019-10-09 | 2021-04-15 | 苏州欧普照明有限公司 | Led light distribution structure, light source module, and lamp |
| EP3971466A4 (en) * | 2019-10-09 | 2022-08-10 | Suzhou Opple Lighting Co., Ltd. | Led light distribution structure, light source module, and lamp |
| US11668439B2 (en) | 2019-10-09 | 2023-06-06 | Opple Lighting Co., Ltd. | LED light distribution structure, light source module and lamp |
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Application publication date: 20150429 |