CN103175096A - Lens and lamp using lens - Google Patents
Lens and lamp using lens Download PDFInfo
- Publication number
- CN103175096A CN103175096A CN201110430558XA CN201110430558A CN103175096A CN 103175096 A CN103175096 A CN 103175096A CN 201110430558X A CN201110430558X A CN 201110430558XA CN 201110430558 A CN201110430558 A CN 201110430558A CN 103175096 A CN103175096 A CN 103175096A
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- 238000007598 dipping method Methods 0.000 claims description 10
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 235000019994 cava Nutrition 0.000 claims description 6
- 238000004020 luminiscence type Methods 0.000 claims description 3
- 230000005494 condensation Effects 0.000 abstract 2
- 238000009833 condensation Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 9
- 230000003287 optical effect Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The invention relates to a lens and a lamp using the lens. The lens is a round table type lens with a lens axis as a symmetric axis and comprises a first end face which is small in diameter, a second end face which is large in diameter and a side wall. The middle of the first end face concaves inwards to form a light source containing cavity suitable for containing a light source. The side face of the light source containing cavity is a spherical face. The bottom face of the light source containing cavity is an outwards-convex free curved face. The side wall is a parabolic face. A focal point of the parabolic face is overlapped with a spherical center of the spherical face. The light outlet diameter of the lens is 40 + / - 1% millimeters. The thickness of the lens is 40 + / - 1% millimeters. According to the lens and the lamp using the lens, due to collimation of the side wall and the free curved face, a half light intensity angle of the lens is enabled to be small, therefore, the lens is enabled to have a large condensation ratio, a light spot with a large condensation ratio is capable of being formed, and requirements of spotlighting in a small range are satisfied. Meanwhile, due to the fact that light of the side face of the light source is used, utilization rate of light energy is enabled to be largely improved.
Description
[technical field]
The present invention relates to lighting field, relate in particular to a kind of lens and use the light fixture of these lens.
[background technology]
Along with improving constantly of luminous efficiency of source, LED is also more and more wide in the application of lighting field.Yet, in some special field, such as medical treatment, public security and hunting field, the spotlighting in often needing very among a small circle, so, have higher requirement for the secondary light-distribution design of optical collimation lens.
At present, traditional collimation light-distribution lens is main mainly with sphere or the aspheric surface of concavo-convex form.But the optical collimation lens of this simple form collimation effect is undesirable, and half light intensity angle is in 10 degree left and right, and optically focused is than little, the spotlighting in can not satisfying among a small circle.Simultaneously can't utilize the light source lateral emitting, cause optical energy utilization efficiency low, optical energy utilization efficiency has been wasted luminous energy greatly in 60% left and right, has reduced brightness.
[summary of the invention]
In view of this, be necessary to provide a kind of optically focused than large lens.
In addition, also provide a kind of light fixture that uses said lens.
A kind of lens, described lens are with the axisymmetric circular platform type lens of lens light, comprise larger the second end face and the sidewall of diameter less the first end face, diameter; The light source accommodating cavity that caves inward and be formed for adaptive accommodating light source in the middle part of described the first end face, the side of described light source accommodating cavity is sphere, the bottom surface of described light source accommodating cavity is the free form surface of evagination, described sidewall is parabola, and paraboloidal focus overlaps with the described sphere centre of sphere, the bright dipping bore of described lens is 40 ± 1% millimeters, and the thickness of described lens is 40 ± 1% millimeters.
Preferably, described the second end face middle part caves inward and forms plane and the face of cylinder.
Preferably, the bright dipping bore of described lens is 40 millimeters, and the thickness of described lens is 40 millimeters.
A kind of light fixture comprises at least one light source and at least one lens, the corresponding light source of each lens, and described lens are with the axisymmetric circular platform type lens of lens light, comprise larger the second end face and the sidewall of diameter less the first end face, diameter; The light source accommodating cavity that caves inward and be formed for adaptive accommodating light source in the middle part of described the first end face, the side of described light source accommodating cavity is sphere, the bottom surface of described light source accommodating cavity is the free form surface of evagination, described sidewall is parabola, and paraboloidal focus overlaps with the described sphere centre of sphere, the bright dipping bore of described lens is 40 ± 1% millimeters, and the thickness of described lens is 40 ± 1% millimeters.
Preferably, described the second end face middle part caves inward and forms plane and the face of cylinder.
Preferably, the bright dipping bore of described lens is 40 millimeters, and the thickness of described lens is 40 millimeters.
Preferably, the distance of described light source and described light source accommodating cavity bottom surface is 3 ± 1% millimeters.
Preferably, the distance of described light source and described light source accommodating cavity bottom surface is 3 millimeters.
Preferably, described light source adopts LED light source, and the luminescence chip of LED light source is 1 millimeter * 1 millimeter square.
Said lens and use the light fixture of these lens, the light of light source side is through the constant arrival sidewall of direction after the side of light source accommodating cavity, sidewall is parabola, utilize paraboloidal optical property that light is reflected, make the approximately parallel outgoing of light and lens axis, light is collimated, reach the collimation effect.The light in light source the place ahead incides the bottom surface of light source accommodating cavity, the bottom surface is free form surface, and free form surface accurately reflects light, makes the approximately parallel outgoing of light and lens axis, light is collimated, reach the collimation effect, two parts light superposes, due to the collimation of sidewall and free form surface, make half light intensity angle of lens little, thereby make lens have large optically focused ratio, can form the hot spot of a large optically focused ratio, satisfy the requirement of interior among a small circle spotlighting.Simultaneously, because the light of light source side is utilized, thereby make the efficiency of light energy utilization greatly improve.
[description of drawings]
Fig. 1 is the section of structure of lens in an embodiment;
Fig. 2 is the structure side view of lens shown in Figure 1;
Fig. 3 is the index path of lens shown in Figure 1;
Fig. 4 is the illumination curve figure of lens emergent ray shown in Figure 1;
Fig. 5 is the distribution curve flux figure of lens emergent ray shown in Figure 1.
[specific embodiment]
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Fig. 1 is the section of structure of lens in an embodiment, and Fig. 2 is the structure side view of lens shown in Figure 1, and Fig. 3 is the index path of lens shown in Figure 1.In conjunction with Fig. 1 and Fig. 3, these lens 100 are with the axisymmetric circular platform type lens of lens light, comprise the second end face 120 that diameter less the first end face 110, diameter are larger and the sidewall 130 that connects the first end face 110 and the second end face 120.The light source accommodating cavity that the first end face 110 middle parts cave inward and are formed for adaptive accommodating light source 200.The side 111 of light source accommodating cavity is sphere, and the bottom surface 112 of light source accommodating cavity is the free form surface of evagination.Sidewall 130 is parabola, and paraboloidal focus overlaps with the sphere centre of sphere.
In this embodiment, the bright dipping bore of these lens 100 is 40 ± 1% millimeters, is preferably 40 millimeters.The thickness of lens 100 is 40 ± 1% millimeters, is preferably 40 millimeters.Half light intensity angle of lens 100 is 3.8 ± 1% degree, preferably 3.8 degree.
Further, be to save material, the second end face 120 middle parts cave inward and form plane 121 and the face of cylinder 122.
Fig. 4 is the illumination curve figure of lens emergent ray shown in Figure 1, and Fig. 5 is the distribution curve flux figure of lens emergent ray shown in Figure 1.These lens, light source 200 is placed on the light source accommodating cavity, with the bottom surface of light source accommodating cavity distance be 3 millimeters.The light of light source 200 sides is through the constant arrival sidewall 130 of direction after the side 111 of light source accommodating cavity.Because sidewall 130 is parabola, paraboloidal focus overlaps with the sphere centre of sphere, and sidewall 130 utilizes paraboloidal optical property, and light is reflected, and makes the approximately parallel outgoing of light and lens axis, and light is collimated, and reaches the collimation effect.The light in light source 200 the place aheads incides the bottom surface 112 of light source accommodating cavity.Because bottom surface 112 is free form surface, free form surface accurately reflects light, makes the approximately parallel outgoing of light and lens axis, and light is collimated, and reaches the collimation effect.At last, two parts light superposes, and due to the collimation of sidewall 130 and free form surface, makes half light intensity angle of lens 100 little, thereby makes lens 100 have large optically focused ratio, can form the hot spot of a large optically focused ratio.Simultaneously, the light of light source 200 sides is utilized, thereby makes the efficiency of light energy utilization greatly improve.Can be found out by Fig. 4 and Fig. 5, half light intensity angle of these lens 100 is 3.8 degree, and half light intensity angle of lens 100 is very little.Half light intensity angle of light source 200 is 120 degree, and the optically focused of lens 100 is than being 120/3.8=31.6, and lens 100 have large optically focused ratio.Simultaneously, the spot radius that lens 100 form is 30 millimeters, and the efficiency of light energy utilization reaches more than 79%, and hot spot is less, and the optically focused collimation is effective, and the efficiency of light energy utilization improves greatly, thus the requirement of the spotlighting in satisfying among a small circle.
In addition, also provide a kind of light fixture, this light fixture comprises at least one light source 200 and at least one lens 100, the corresponding light source 200 of each lens 100.The corresponding light source 200 of each lens 100.
In conjunction with Fig. 1 and Fig. 3, these lens 100 are with the axisymmetric circular platform type lens of lens light, comprise the second end face 120 that diameter less the first end face 110, diameter are larger and the sidewall 130 that connects the first end face 110 and the second end face 120.The light source accommodating cavity that the first end face 110 middle parts cave inward and are formed for adaptive accommodating light source 200.The side 111 of light source accommodating cavity is sphere, and the bottom surface 112 of light source accommodating cavity is the free form surface of evagination.Sidewall 130 is parabola, and paraboloidal focus overlaps with the sphere centre of sphere.
In this embodiment, the bright dipping bore of these lens 100 is 40 ± 1% millimeters, is preferably 40 millimeters.The thickness of lens 100 is 40 ± 1% millimeters, is preferably 40 millimeters.Half light intensity angle of lens 100 is 3.8 ± 1% degree, preferably 3.8 degree.
Further, be to save material, the second end face 120 middle parts cave inward and form plane 121 and the face of cylinder 122.
This light fixture, light source 200 is placed on the light source accommodating cavity, with the bottom surface of light source accommodating cavity distance be 3 millimeters.The light of light source 200 sides is through the constant arrival sidewall 130 of direction after the side 111 of light source accommodating cavity.Because sidewall 130 is parabola, paraboloidal focus overlaps with the sphere centre of sphere, and sidewall 130 utilizes paraboloidal optical property, and light is reflected, and makes the approximately parallel outgoing of light and lens axis, and light is collimated, and reaches the collimation effect.The light in light source 200 the place aheads incides the bottom surface 112 of light source accommodating cavity.Because bottom surface 112 is free form surface, free form surface accurately reflects light, makes the approximately parallel outgoing of light and lens axis, and light is collimated, and reaches the collimation effect.At last, two parts light superposes, and due to the collimation of sidewall and free form surface, makes half light intensity angle of lens little, thereby makes lens 100 have large optically focused ratio, can form the hot spot of a large optically focused ratio.Simultaneously, the light of light source 200 sides is utilized, thereby makes the efficiency of light energy utilization greatly improve.Can be found out by Fig. 4 and Fig. 5, half light intensity angle of these lens 100 is 3.8 degree, and half light intensity angle of lens 100 is very little.Half light intensity angle of light source 200 is 120 degree, and the optically focused of lens 100 is than being 120/3.8=31.6, and lens 100 optically focused are than large.Simultaneously, the spot radius that lens 100 form is 30 millimeters, and the efficiency of light energy utilization reaches more than 79%, and hot spot is less, and the optically focused collimation is effective, and the efficiency of light energy utilization improves greatly, thus the requirement of the spotlighting in satisfying among a small circle.
Said lens and use the light fixture of these lens, the light of light source side is through the constant arrival sidewall of direction after the side of light source accommodating cavity, sidewall is parabola, utilize paraboloidal optical property that light is reflected, make the approximately parallel outgoing of light and lens axis, light is collimated, reach the collimation effect.The light in light source the place ahead incides the bottom surface of light source accommodating cavity, the bottom surface is free form surface, and free form surface accurately reflects light, makes the approximately parallel outgoing of light and lens axis, light is collimated, reach the collimation effect, two parts light superposes, due to the collimation of sidewall and free form surface, make half light intensity angle of lens little, thereby make lens have large optically focused ratio, can form the hot spot of a large optically focused ratio, satisfy the requirement of interior among a small circle spotlighting.Simultaneously, because the light of light source side is utilized, thereby make the efficiency of light energy utilization greatly improve.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.Should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. lens, is characterized in that, described lens are with the axisymmetric circular platform type lens of lens light, comprises larger the second end face and the sidewall of diameter less the first end face, diameter; The light source accommodating cavity that caves inward and be formed for adaptive accommodating light source in the middle part of described the first end face, the side of described light source accommodating cavity is sphere, the bottom surface of described light source accommodating cavity is the free form surface of evagination, described sidewall is parabola, and paraboloidal focus overlaps with the described sphere centre of sphere, the bright dipping bore of described lens is 40 ± 1% millimeters, and the thickness of described lens is 40 ± 1% millimeters.
2. lens according to claim 1, is characterized in that, caving inward in the middle part of described the second end face forms plane and the face of cylinder.
3. lens according to claim 1 and 2, is characterized in that, the bright dipping bore of described lens is 40 millimeters, and the thickness of described lens is 40 millimeters.
4. light fixture, comprise at least one light source and at least one lens, the corresponding light source of each lens is characterized in that, described lens are with the axisymmetric circular platform type lens of lens light, comprise larger the second end face and the sidewall of diameter less the first end face, diameter; The light source accommodating cavity that caves inward and be formed for adaptive accommodating light source in the middle part of described the first end face, the side of described light source accommodating cavity is sphere, the bottom surface of described light source accommodating cavity is the free form surface of evagination, described sidewall is parabola, and paraboloidal focus overlaps with the described sphere centre of sphere, the bright dipping bore of described lens is 40 ± 1% millimeters, and the thickness of described lens is 40 ± 1% millimeters.
5. light fixture according to claim 1, is characterized in that, caving inward in the middle part of described the second end face forms plane and the face of cylinder.
6. according to claim 4 or 5 described light fixtures, is characterized in that, the bright dipping bore of described lens is 40 millimeters, and the thickness of described lens is 40 millimeters.
7. light fixture according to claim 4, is characterized in that, the distance of described light source and described light source accommodating cavity bottom surface is 3 ± 1% millimeters.
8. light fixture according to claim 7, is characterized in that, the distance of described light source and described light source accommodating cavity bottom surface is 3 millimeters.
9. light fixture according to claim 4, is characterized in that, described light source adopts LED light source, and the luminescence chip of LED light source is 1 millimeter * 1 millimeter square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430558XA CN103175096A (en) | 2011-12-20 | 2011-12-20 | Lens and lamp using lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110430558XA CN103175096A (en) | 2011-12-20 | 2011-12-20 | Lens and lamp using lens |
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| CN103175096A true CN103175096A (en) | 2013-06-26 |
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| CN201110430558XA Pending CN103175096A (en) | 2011-12-20 | 2011-12-20 | Lens and lamp using lens |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103453450A (en) * | 2013-08-19 | 2013-12-18 | 易美芯光（北京）科技有限公司 | Refraction and reflection light emitting device |
| CN104075236A (en) * | 2013-03-28 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Light distribution system and lighting device with the light distribution system |
| CN104565839A (en) * | 2013-10-10 | 2015-04-29 | 深圳市海洋王照明工程有限公司 | Light condensing lens and lamp provided with same |
| CN104713012A (en) * | 2013-12-17 | 2015-06-17 | 罗格朗法国公司 | Lighting device |
| CN107270241A (en) * | 2017-06-19 | 2017-10-20 | 江苏亿诺车辆部件有限公司 | A kind of automobile lamp lens |
| CN112083626A (en) * | 2019-06-12 | 2020-12-15 | 扬明光学股份有限公司 | Projection device and manufacturing method thereof |
| CN112505807A (en) * | 2020-12-01 | 2021-03-16 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Terahertz wave collimation focusing lens and terahertz wave system |
| CN114019666A (en) * | 2021-10-25 | 2022-02-08 | 中国科学院长春光学精密机械与物理研究所 | A total reflection type LED micro-illumination light distribution element |
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| US20080310028A1 (en) * | 2007-06-18 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens for a light assembly |
| CN101392886A (en) * | 2007-09-21 | 2009-03-25 | 上海康耐司信号设备有限公司 | High-efficiency light-gathering structure of light-emitting diodes |
| CN201680258U (en) * | 2010-03-23 | 2010-12-22 | 重庆科鹰电气有限公司 | LED lighting unit and LED headlight light source employing same |
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Patent Citations (4)
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| CN2605468Y (en) * | 2002-09-28 | 2004-03-03 | 东莞黄江华美塑胶灯饰厂 | Condenser |
| US20080310028A1 (en) * | 2007-06-18 | 2008-12-18 | Jeyachandrabose Chinniah | Near field lens for a light assembly |
| CN101392886A (en) * | 2007-09-21 | 2009-03-25 | 上海康耐司信号设备有限公司 | High-efficiency light-gathering structure of light-emitting diodes |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075236A (en) * | 2013-03-28 | 2014-10-01 | 海洋王（东莞）照明科技有限公司 | Light distribution system and lighting device with the light distribution system |
| CN103453450A (en) * | 2013-08-19 | 2013-12-18 | 易美芯光（北京）科技有限公司 | Refraction and reflection light emitting device |
| CN104565839A (en) * | 2013-10-10 | 2015-04-29 | 深圳市海洋王照明工程有限公司 | Light condensing lens and lamp provided with same |
| CN104713012A (en) * | 2013-12-17 | 2015-06-17 | 罗格朗法国公司 | Lighting device |
| CN107270241A (en) * | 2017-06-19 | 2017-10-20 | 江苏亿诺车辆部件有限公司 | A kind of automobile lamp lens |
| CN107270241B (en) * | 2017-06-19 | 2019-07-12 | 江苏亿诺车辆部件有限公司 | A kind of automobile lamp lens |
| CN112083626A (en) * | 2019-06-12 | 2020-12-15 | 扬明光学股份有限公司 | Projection device and manufacturing method thereof |
| CN112505807A (en) * | 2020-12-01 | 2021-03-16 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Terahertz wave collimation focusing lens and terahertz wave system |
| CN112505807B (en) * | 2020-12-01 | 2023-03-10 | 华中光电技术研究所（中国船舶重工集团公司第七一七研究所） | Terahertz wave collimation focusing lens and terahertz wave system |
| CN114019666A (en) * | 2021-10-25 | 2022-02-08 | 中国科学院长春光学精密机械与物理研究所 | A total reflection type LED micro-illumination light distribution element |
| CN114019666B (en) * | 2021-10-25 | 2023-08-25 | 中国科学院长春光学精密机械与物理研究所 | Total reflection type LED micro-lighting light distribution element |
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Application publication date: 20130626 |