WO2017088100A1 - 一种短距离混光器 - Google Patents
一种短距离混光器 Download PDFInfo
- Publication number
- WO2017088100A1 WO2017088100A1 PCT/CN2015/095322 CN2015095322W WO2017088100A1 WO 2017088100 A1 WO2017088100 A1 WO 2017088100A1 CN 2015095322 W CN2015095322 W CN 2015095322W WO 2017088100 A1 WO2017088100 A1 WO 2017088100A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light mixer
- incident surface
- mixer body
- light
- short
- Prior art date
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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
Definitions
- the present invention relates to the field of optical technologies, and in particular, to a short-range light mixer.
- the light-emitting diode has been continuously improved, and it is gradually replacing the traditional light source.
- the light source is mainly composed of a blue chip and yellow, and selectively adds green and red phosphors to perform light mixing to form a white light source.
- Phosphors are available in two major methods: precipitation and coating. Under the mixed light of blue light and phosphor, uniform illumination will appear in long-distance illumination, but in close-range applications, uneven color will appear.
- the invention aims to provide a short-distance light mixing device, which has a simple structure and can mix and process the light emitted by the chip, and can achieve a uniform color spot at a long distance or a close distance.
- the short-distance light mixer disclosed in the present invention comprises a light mixer body, the light mixer body is a rotary axis symmetrical structure, the top of the light mixer body is provided with a groove A, and the groove A is inverted
- the tip of the groove A is a curved curved surface, and the curvature of the curved curved surface is sequentially decreased from the bottom to the top
- the bottom of the light mixer body is provided with a groove B
- the groove B has a diameter
- the first dimension surface and the second incident surface are arcuate curved surfaces, and the first incident surface is composed of a first surface and a second incident surface connected from the inside to the outside.
- the busbar A is formed by rotating along a central axis of rotation of the light mixer body, and the second incident surface is formed by a bus bar B rotating along a center axis of rotation of the light mixer body, and a side wall of the groove B is a third The incident surface, the third incident surface is a curved curved surface.
- an xy plane rectangular coordinate system is established, and the radial direction of the light mixer body is defined as x
- the axial direction of the light mixer body is the y-axis
- the curve equation that the bus A satisfies is
- x 1 is the x-axis coordinate
- y 1 is the y-axis coordinate
- ⁇ 1 is the control parameter
- ⁇ 1 is calculated by the following formula,
- the value of D 1 is 120 to 360.
- x 2 is the x-axis coordinate
- y 2 is the y-axis coordinate
- ⁇ 2 is the control parameter
- ⁇ 2 is calculated by the following formula,
- D 2 has a value of 70 to 110.
- the fourth incident surface coincides with a cross section of the light mixer body, and the radius of the fourth incident surface is less than one tenth of the radius of the cross section.
- the horizontal projection size of the bus bar A is larger than the horizontal projection size of the bus bar B.
- the first exit surface is provided with at least one annular tenon, and the tenon is coaxial with the light mixer body, and the tenons are sequentially arranged from the first exit surface end to the lower end.
- the bottom end of the light mixer body is provided with a flange in a radial direction, the flange has a rectangular outline, and the four corners of the rectangle are dull.
- Figure 1 is a schematic view of the structure of the present invention
- FIG. 3 is a schematic view of an optical path of the present invention.
- the groove B3 has a radial dimension larger than the bottom radial dimension, and the bottom surface of the groove B3 includes a fourth incident surface 7, a first incident surface 4 and a second incident surface 5, which are sequentially connected, and the fourth incident Face 7 is a circular plane at the bottom of groove B3 Center, the fourth incident surface 7 coincides with a cross section of the light mixer body 1, and the radius of the fourth incident surface 7 is smaller than one tenth of the cross-sectional radius of the mixer body 1 coincident with it, the first incident surface 4 and the second incident surface 5 is a curved curved surface, the first incident surface 4 is formed by the bus bar A41 rotating along the central axis of rotation of the light mixer body 1, and the second incident surface 9 is formed by the bus bar B51 along the light blender.
- the annular body 10 of the main body 1 is coaxial, and the tenons 10 are arranged in order from the upper end to the lower end of the first exit surface 8, and the bottom surface of the light mixer body 1 is gradually inclined upward from the middle to the edge to form a slope 11 and a light mixer body.
- the bottom end of the first end is provided with a flange 12 in the radial direction, the flange 12 has a rectangular outline, and the four corners of the rectangle are dull.
- the xy plane rectangular coordinate system is established, and the radial direction of the light mixer body is defined as the x-axis, and the axial direction of the light mixer body is the y-axis.
- x 1 is the x-axis coordinate
- y 1 is the y-axis coordinate
- ⁇ 1 is the control parameter
- D 1 is a design value, and the value of D 1 is 120 to 360.
- ⁇ 2 is calculated by the following formula,
- D 2 is a design value, and the value of D 2 is 70 to 110.
- FIG. 3 is a schematic diagram of an optical path of the present invention.
- Light emitted by the LED light source a part of the light enters from the first incident surface 4 and the second incident surface 5, and is emitted from the first exit surface 8 and a part of the light is emitted from the third incident surface.
- 6 enters, exits from the second exit surface 9, and a part of the light enters from the fourth incident surface 7, first reflected by the curved curved surface of the groove A2, and then emitted from the first exit surface 8, and the light emitted by the LED light source passes through a short distance.
- the light mixer When the light mixer is fully mixed, it can also display uniform white light at a relatively close distance.
Abstract
Description
Claims (9)
- 一种短距离混光器,其特征在于:包括混光器本体,所述混光器本体为回转轴对称结构,所述混光器本体顶部设有凹槽A,所述凹槽A为倒立的尖锥形,凹槽A的侧壁为弧形曲面,弧形曲面的曲率由底部向顶部依次减小,所述混光器本体底部设有凹槽B,所述凹槽B口部径向尺寸大于底部径向尺寸,凹槽B底面包括从内到外连接的第一入射面和第二入射面,所述第一入射面和第二入射面为弧形曲面,第一入射面由母线A沿所述混光器本体的回转中心轴旋转而成,第二入射面由母线B沿所述混光器本体的回转中心轴回转而成,所述凹槽B的侧壁为第三入射面,所述第三入射面为弧形曲面。
- 根据权利要求1所述的短距离混光器,其特征在于:所述凹槽B的底面还包括第四入射面,所述第四入射面为圆形平面,第四入射面位于凹槽B底部中心。
- 根据权利要求3所述的短距离混光器,其特征在于:所述第四入射面与混光器本体的一个横截面重合,第四入射面的半径小于该横截面半径的十分之一。
- 根据权利要求1或2所述的短距离混光器,其特征在于:所述母线A的水平投影尺寸大于母线B的水平投影尺寸。
- 根据权利要求1所述的短距离混光器,其特征在于:所述混光器本体的上部外壁为第一出射面,所述第一出射面为曲面,所述混光器本体的下部外壁为第二出射面,所述第二出射面为弧形曲面。
- 根据权利要求6所述的短距离混光器,其特征在于:所述第一出射面上设有至少1个环状凸楞,所述凸楞与混光器本体共轴线,凸楞从第一出射面上端向下端依次排布。
- 根据权利要求1所述的短距离混光器,其特征在于:所述混光器本体的底面由中间向边缘逐渐向上倾斜。
- 根据权利要求1所述的短距离混光器,其特征在于:所述混光器本体的底端径向方向设有凸缘,所述凸缘的轮廓为矩形,矩形的四角倒钝。
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CN103925557A (zh) * | 2014-03-26 | 2014-07-16 | 佛山市中山大学研究院 | 匀光透镜及包括该匀光透镜的led光源模组 |
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CN104296069A (zh) * | 2013-07-17 | 2015-01-21 | 艾科有限公司 | 用于灯具的准直仪光学装置 |
CN104421832A (zh) * | 2013-08-21 | 2015-03-18 | 展晶科技(深圳)有限公司 | 透镜及具有该透镜的发光元件 |
CN105299593A (zh) * | 2015-11-23 | 2016-02-03 | 成都派斯光学有限公司 | 一种短距离混光器 |
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- 2015-11-23 WO PCT/CN2015/095322 patent/WO2017088100A1/zh active Application Filing
Patent Citations (7)
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CN103375768A (zh) * | 2012-04-26 | 2013-10-30 | 全亿大科技(佛山)有限公司 | 透镜及光源模组 |
CN103868021A (zh) * | 2012-12-18 | 2014-06-18 | 韩国艾尼凯斯特有限公司 | 侧出射型led透镜、具有该透镜的背光单元及显示装置 |
CN104296069A (zh) * | 2013-07-17 | 2015-01-21 | 艾科有限公司 | 用于灯具的准直仪光学装置 |
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