WO2019033630A1 - 组合式面光源扩散装置 - Google Patents
组合式面光源扩散装置 Download PDFInfo
- Publication number
- WO2019033630A1 WO2019033630A1 PCT/CN2017/115177 CN2017115177W WO2019033630A1 WO 2019033630 A1 WO2019033630 A1 WO 2019033630A1 CN 2017115177 W CN2017115177 W CN 2017115177W WO 2019033630 A1 WO2019033630 A1 WO 2019033630A1
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- WIPO (PCT)
- Prior art keywords
- light
- light source
- light guide
- guide cover
- combined surface
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- 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
- F21V5/02—Refractors for light sources of prismatic shape
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- 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
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/12—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening by screwing
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- 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
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
Definitions
- the present invention relates to a light source assisting device, and more particularly to a combined surface light source diffusing device.
- LED energy-saving lamps are favored by the people and supported by the country with their remarkable characteristics of energy saving, health, environmental protection and long life.
- the glare is not well handled, which not only affects the lighting effect, but is also harmful to the human eye.
- the optical diffuser developed by the company itself, the glare problem was effectively solved, and the lighting effect was further improved.
- the subsequent research it was found that due to the diffuse reflection effect of the optical diffuser, the back side of the light source also became bright, and this part of the light was wasted, which affected the luminaire to exert its optimal illumination effect.
- the object of the present invention is to provide a combined surface light source diffusing device which is compact in structure, convenient in assembly, and good in use, in view of the above-mentioned deficiencies of the prior art.
- a combined surface light source diffusing device includes an optical diffusing plate, wherein a light guiding cover is disposed around the optical diffusing plate, and a light guide cover located at a periphery of the light emitting surface of the optical diffusing plate is a speaker.
- the angle between the inner wall and the vertical surface of the horn structure is 10° to 45°; the distance between the light-emitting surface of the optical diffuser and the end surface of the light-emitting opening of the light guide is 20-100 mm.
- the inner surface of the light guide cover having a flared structure is provided with a reflective plating layer or a reflective sleeve.
- At least one side of the optical diffusing plate is distributed with a plurality of light refraction floating points, and the respective light refracting floating points are quadrangular pyramids; the bottom surface of each of the quadrangular pyramids The side length is 0.5 to 5 mm, and the height is 0.4 to 4.3 mm; the optical diffusing plate and the light refraction floating point are integrally formed as a whole structure.
- the quadrangular pyramid on the optical diffusing plate is a regular quadrangular pyramid, and the regular quadrangular pyramid has a bottom side length of 0.5 to 2.5 mm and a height of 0.5 to 2.5 mm.
- the light guide cover is composed of an extending portion and a light guiding portion having a flared structure; and the optical diffusing plate is disposed at a contact portion region of the extending portion and the light guiding portion.
- a mounting step is formed at a contact portion between the extending portion and the light guiding portion, and the edge of the optical diffusing plate is integrally formed with a plurality of positioning ears in the circumferential direction, and positioning is provided on the positioning ear.
- the hole and the screw pass through the positioning hole and are screwed to the corresponding blind hole on the mounting step.
- the end surface of the opening portion of the light guide cover is sequentially provided with a sealing ring from the inside to the outside.
- a transparent protective plate and a pressing ring a positioning strip is disposed on an end surface of the sealing ring opposite to the light guide cover, and a mounting groove corresponding to the positioning strip is disposed on the light guiding cover corresponding to the positioning strip; the pressing ring passes The screw is fixedly connected to the light guide.
- the light guide cover is provided with a counterbore, and the light guide cover is connected to the external substrate through a mounting counterbore through a screw.
- the present invention cooperates with the optical diffuser cover to scatter the front end portion of the optical diffuser cover to the front of the lamp to be collected and guided to the front of the lamp, thereby further improving the effective use of the light source, thereby further improving the light intensity in front of the lamp.
- the use of an optical diffuser cover with a light guide not only effectively solves the glare problem, but also makes the light in front of the lamp soft and glare, and significantly increases the light intensity in front of the lamp.
- the use of the light guide is to effectively collect the light that is diffused and reflected by the optical diffuser to the rear of the lamp, and then to the front to avoid waste of light. If the optical diffuser of the present application is not used, no light is emitted. To the back of the luminaire.
- Embodiment 1 is a schematic structural view of Embodiment 1 of the present invention.
- Figure 2 is a partial enlarged view of the portion A in Figure 1;
- Figure 3 is a schematic exploded view of Embodiment 1 of the present invention.
- Figure 4 is a schematic structural view of Embodiment 2 of the present invention.
- Figure 5 is a graph showing the light intensity distribution of a non-diffusing plate without a light guide surface light source spotlight in an experimental example of the present invention
- FIG. 6 is a illuminance distance chart of a non-diffusing plate without a light guide surface light source spotlight in an experimental example of the present invention
- FIG. 7 is a graph showing a utilization coefficient curve of a non-diffusing plate without a light guide face light source spotlight as a street lamp in an experimental example of the present invention
- Figure 8 is a graph showing the light intensity distribution of a light guide plate with a diffuser without a light guide in the experimental example of the present invention.
- Figure 9 is a graph showing the illuminance distance of a diffuser-free light-emitting cover surface light source spotlight in an experimental example of the present invention.
- Figure 10 is a graph showing the utilization coefficient curve of a non-light-shielding surface light source with a diffusing plate as a street lamp in an experimental example of the present invention
- Figure 11 is a graph showing the light intensity distribution of a diffuser-free light guide with a long-range light source spotlight in the experimental example of the present invention.
- Figure 12 is a graph showing the illuminance distance of a diffuser-free light guide with a long-range light source spotlight in an experimental example of the present invention
- Figure 13 is a graph showing the utilization coefficient curve of a non-diffusion plate with a light guide remote-surface light source spotlight as a street lamp in an experimental example of the present invention
- Figure 14 is a graph showing the light intensity distribution of a near-surface light source spotlight with a diffuser with a diffuser in an experimental example of the present invention
- Figure 15 is a illuminance distance chart of a diffuser plate with a light guide close-up light source spotlight in an experimental example of the present invention
- Figure 16 is a graph showing the utilization factor curve of a diffuser with a light guide close-up light source spotlight as a street light in an experimental example of the present invention
- Figure 17 is a graph showing the light intensity distribution of a light source spotlight with a diffuser in a light guide of the experimental example of the present invention.
- Figure 18 is a graph showing the illuminance distance of a light source spotlight with a diffusion plate with a diffuser in an experimental example of the present invention
- Fig. 19 is a graph showing the utilization factor curve of a light-emitting surface light source with a diffusing plate with a light guide in the experimental example of the present invention as a street light.
- optical diffusing plate 1 light refraction floating point 1a, positioning ear 1b, positioning hole 1c, light guide cover 2, extension portion 2a, light guiding portion 2b, mounting groove 2c, mounting counterbore 2d, reflective plating layer 3, Reflective sleeve 4, sealing ring 5, positioning strip 5a, transparent protective plate 6, and compression ring 7.
- a combined surface light source diffusing device of the present invention comprises an optical diffusing plate 1 of transparent material, and a plurality of transparent materials are disposed on at least one side of the optical diffusing plate 1 Point 1a, in this embodiment, the light refraction point is disposed on the inner side surface of the optical diffuser, and each of the light refraction floating points 1a is a quadrangular pyramid; the bottom side length of each of the quadrangular pyramids is 0.5-5 mm, high It is 0.4 to 4.3 mm; the optical diffusing plate 1 and the light refraction floating point 1a are integrally formed as a unitary structure.
- the quadrangular pyramid on the optical diffuser 1 is a regular quadrangular pyramid having a bottom side length of 0.5 to 2.5 mm and a height of 0.5 to 2.5 mm.
- a light guide cover 2 is disposed on the periphery of the optical diffuser plate 1.
- the light guide cover 2 located at the periphery of the light exit surface of the optical diffuser plate 1 has a flared structure, and the angle ⁇ between the inner wall and the vertical surface of the flared structure is 10°. ⁇ 45°; the distance between the light-emitting surface of the optical diffusing plate 1 and the end surface of the light-emitting opening of the light guide cover 2 is 20 to 100 mm.
- the light guide cover 2 is composed of an extending portion 2a and a light guiding portion 2b having a flared structure, wherein the horn structure is a light guiding portion; the optical diffusing plate 1 is disposed at the extending portion 2a and the light guiding portion Contact area of 2b.
- a mounting step is formed at the contact portion of the extending portion 2a and the light guiding portion 2b.
- the edge of the optical diffusing plate 1 is integrally formed with a plurality of positioning ears 1b in the circumferential direction, and is disposed on the positioning ear 1b.
- the positioning hole 1c is screwed through the positioning hole to the corresponding blind hole on the mounting step.
- a mounting counterbore 2d is provided on the light guide cover 2 in the circumferential direction, and the light guide cover 2 is connected to the external substrate through the mounting counterbore 2d by screws.
- the light guide cover 2 has an inner surface of a region of a flared structure, that is, a surface of the light guide portion is provided with a reflective plating layer 3.
- the sealing ring 5, the transparent protective plate 6 and the pressing ring 7 are sequentially disposed from the inside to the outside of the opening end surface of the light guide cover 2; the positioning strip 5a is disposed on the end surface of the sealing ring 5 opposite to the light guiding cover 2
- the light guide cover 2 corresponding to the positioning strip 5a is provided with a mounting groove 2c adapted to the positioning strip 5a; the pressing ring 7 is fixedly connected to the light guide cover 2 by screws. It is waterproof and dustproof by the sealing ring and the transparent protective plate.
- the transparent protective sheet may preferably be made of tempered glass or a transparent acrylic sheet.
- the diffusion device of the present invention When in use, the diffusion device of the present invention is mounted on an aluminum substrate or aluminum alloy heat dissipation on the periphery of the LED lamp bead to ensure the lamp The bead light does not leak from the extension. In this way, the light generated by the LED lamp bead is diffused and homogenized by the optical diffuser, and then the light that is partially irradiated to the rear of the lamp is collected by the light guide and then thrown to the front of the lamp to make the light intensity higher.
- a combined surface light source diffusing device of the present invention has the same structure as that of Embodiment 1, except that a light reflecting sleeve 4 is disposed in the light guiding portion, and the reflective plating layer 3 is not used. .
- This structure has the advantages of convenient processing and high yield.
- the manner of use is the same as in the first embodiment.
- a tracking probe type moving mirror distribution photometer is used, and the surface light source spotlights and the unused light guide cover or the unused diffusion plate or the light guide cover and the diffusion plate which are configured by the first embodiment and the second embodiment of the present application are not used.
- the same type of surface light source lamp under the same conditions, the photometric test, the color temperature of the surface light source lamp is 5000K, the power is 30W, the test result is shown in Figure 5 - Figure 19, the utilization coefficient curve of the surface light source as the street light in the figure The left line is from top to bottom and the right line is from bottom to top, respectively 0°, 5°, 10°, 15°. When used as a street light, the main reference is the right side line.
- the tabulation is as follows:
- the light source diffusing device used for the diffusing plate with the light guide cover close-range light source spotlight is the structure described in Embodiment 1, and the angle ⁇ between the inner wall of the light guiding portion and the vertical surface is 40°.
- the distance between the optical diffuser plate and the end face of the light guide opening of the light guide is 25 mm.
- the length and height of the bottom side of the regular square pyramid on the optical diffuser 9 are both 1.8 mm.
- the light source diffusing device used in the diffuser plate with the light guide cover is the structure described in Embodiment 2, and the angle ⁇ between the inner wall and the vertical surface of the light guiding portion is 15°.
- the distance between the optical diffuser plate and the end face of the light guide opening of the light guide is 65 mm.
- the length and height of the bottom side of the regular square pyramid on the optical diffuser 9 are both 0.65 mm.
- the spotlight using the light source diffusing device of the present invention has no light guide surface light source compared to the non-diffusing plate. Spotlights, although the luminous flux is very different, the central light intensity is very close, and the illumination distance is also close. That is to say, the surface light source spotlight has substantially the same illumination effect as the diffuser plate without the light guide cover surface light source after the diffusion plate and the light guide cover are added, but the surface light source spotlight of the present invention has The effect of soft light and no glare.
- the non-diffusing board has no light guide surface light source spotlight, but has the disadvantage of light glare. This effect is very significant.
- the non-diffusion plate has a light-guided surface light source spotlight, which has the advantages of long illumination distance and strong central light intensity.
- the spotlight using the light source diffusing device of the present invention is more than a spotlight with a diffused cover light source.
- the center light intensity is remarkably improved, and the irradiation angle is reduced and the irradiation distance is long.
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- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
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Abstract
一种组合式面光源扩散装置;属于光源扩散装置技术领域;其技术要点包括光学扩散板(1),其中光学扩散板(1)外围设有导光罩(2),位于光学扩散板(1)出光面外围的导光罩(2)呈喇叭形结构,喇叭形结构的内壁与水平面之间的夹角为10°~45°;光学扩散板(1)出光面至导光罩(2)出光口端面之间的间距为20~100mm;旨在提供一种结构紧凑、组装方便且使用效果好的组合式面光源扩散装置;用于光源照射扩散、匀光。
Description
本发明涉及一种光源辅助装置,更具体地说,尤其涉及一种组合式面光源扩散装置。
LED节能灯作为一种新型的照明光源,以节能、健康、环保及寿命长的显著特点,受到了广大人民的青睐以及国家的大力扶持。LED灯在实际使用过程中,要解决散热和眩光两个常见的问题,散热不好,就会大幅缩短灯芯的寿命。眩光处理不好,不仅影响照明效果,而且对人眼有害。前期,在采用申请自行研发的光学扩散罩后,眩光问题得到有效解决,照明效果得到进一步提高。但是在后续的研究中发现,由于光学扩散罩的漫反射效果,使得光源背面也变得明亮起来,这部分光线被浪费掉了,从而影响了灯具发挥其最优的照射效果。
发明内容
本发明的目的在于针对上述现有技术的不足,提供一种结构紧凑、组装方便且使用效果好的组合式面光源扩散装置。
本发明的技术方案是这样实现的:一种组合式面光源扩散装置,包括光学扩散板,其中所述光学扩散板外围设有导光罩,位于光学扩散板出光面外围的导光罩呈喇叭形结构,该喇叭形结构的内壁与竖直面之间的夹角α为10°~45°;光学扩散板出光面至导光罩出光口端面之间的间距为20~100mm。
上述的一种组合式面光源扩散装置中,所述导光罩呈喇叭形结构的区域内表面设有反光电镀层或套设有反光套。
上述的一种组合式面光源扩散装置中,所述光学扩散板的至少一侧面上分布有若干光线折射浮点,所述各光线折射浮点为四棱锥体;所述各四棱锥体的底面边长为0.5~5mm,高为0.4~4.3mm;所述的光学扩散板与光线折射浮点为一体成型的整体结构。
上述的一种组合式面光源扩散装置中,所述光学扩散板上的四棱锥体为正四棱锥体,所述正四棱锥体的底面边长为0.5~2.5mm,高为0.5~2.5mm。
上述的一种组合式面光源扩散装置中,所述导光罩由延伸部和呈喇叭形结构的导光部组成;所述光学扩散板设置在延伸部与导光部的接触部区域。
上述的一种组合式面光源扩散装置中,在延伸部与导光部的接触部成型有安装台阶,所述光学扩散板边缘沿周向一体成型有若干定位耳,在定位耳上设有定位孔,螺丝穿过定位孔与安装台阶上对应的盲孔螺纹连接。
上述的一种组合式面光源扩散装置中,所述导光罩开口部端面由内至外依序设有密封圈、
透明防护板和压紧环;在密封圈与导光罩相对的端面上设有定位条,在定位条对应的导光罩上设有与定位条相适应的安装槽;所述压紧环通过螺丝与导光罩固定连接。
上述的一种组合式面光源扩散装置中,所述导光罩上设有安装沉孔,导光罩通过螺丝穿过安装沉孔与外部基板连接。
本发明采用上述结构后,通过导光罩与光学扩散罩配合,将光学扩散罩前端部分散射至灯具后面的光线收集再导向灯具前面,进一步提高光源的有效利用,使得灯具前方的光强进一步提高。采用光学扩散罩配合导光罩,不仅有效解决眩光问题,使得灯具前方的光照柔和不刺眼,而且显著提高了灯具前方的光强。导光罩的使用,是为了将被光学扩散罩漫反射至灯具照射方向后方的光线有效收集再投向前方,避免光线的浪费,而如果不采用本申请的光学扩散罩,则不会出现光线照射至灯具后侧的问题。
下面结合附图中的实施例对本发明作进一步的详细说明,但并不构成对本发明的任何限制。
图1是本发明实施例1的结构示意图;
图2是图1中A处的局部放大示意图;
图3是本发明实施例1的分解结构示意图;
图4是本发明实施例2的结构示意图;
图5是本发明实验例中无扩散板无导光罩面光源射灯的光强分布曲线图;
图6是本发明实验例中无扩散板无导光罩面光源射灯的照度距离图表;
图7是本发明实验例中无扩散板无导光罩面光源射灯作为路灯时的利用系数曲线图表;
图8是本发明实验例中带扩散板无导光罩面光源射灯的光强分布曲线图;
图9是本发明实验例中带扩散板无导光罩面光源射灯的照度距离图表;
图10是本发明实验例中带扩散板无导光罩面光源射灯作为路灯时的利用系数曲线图表;
图11是本发明实验例中无扩散板带导光罩远距面光源射灯的光强分布曲线图;
图12是本发明实验例中无扩散板带导光罩远距面光源射灯的照度距离图表;
图13是本发明实验例中无扩散板带导光罩远距面光源射灯作为路灯时的利用系数曲线图表;
图14是本发明实验例中带扩散板带导光罩近距面光源射灯的光强分布曲线图;
图15是本发明实验例中带扩散板带导光罩近距面光源射灯的照度距离图表;
图16是本发明实验例中带扩散板带导光罩近距面光源射灯作为路灯时的利用系数曲线图表;
图17是本发明实验例中带扩散板带导光罩中距面光源射灯的光强分布曲线图;
图18是本发明实验例中带扩散板带导光罩中距面光源射灯的照度距离图表;
图19是本发明实验例中带扩散板带导光罩中距面光源射灯作为路灯时的利用系数曲线图表。
图中:光学扩散板1、光线折射浮点1a、定位耳1b、定位孔1c、导光罩2、延伸部2a、导光部2b、安装槽2c、安装沉孔2d、反光电镀层3、反光套4、密封圈5、定位条5a、透明防护板6、压紧环7。
实施例1
参阅图1至图3所示,本发明的一种组合式面光源扩散装置,包括透明材质的光学扩散板1,所述光学扩散板1的至少一侧面上分布有若干透明材质的光线折射浮点1a,本实施例中,光线折射点设置在光学扩散板的内侧面上,所述各光线折射浮点1a为四棱锥体;所述各四棱锥体的底面边长为0.5~5mm,高为0.4~4.3mm;所述的光学扩散板1与光线折射浮点1a为一体成型的整体结构。并且,所述光学扩散板1上的四棱锥体为正四棱锥体,所述正四棱锥体的底面边长为0.5~2.5mm,高为0.5~2.5mm。通过光线折射浮点,将LED灯珠发出的高光强光线进行折射、漫反射,使光线分散开来,既扩大照射面积,又避免眩光问题。
在光学扩散板1外围设有导光罩2,位于光学扩散板1出光面外围的导光罩2呈喇叭形结构,该喇叭形结构的内壁与竖直面之间的夹角α为10°~45°;光学扩散板1出光面至导光罩2出光口端面之间的间距为20~100mm。具体地,所述导光罩2由延伸部2a和呈喇叭形结构的导光部2b组成,前述喇叭形结构即为导光部;所述光学扩散板1设置在延伸部2a与导光部2b的接触部区域。为了方便光学扩散板的安装,在延伸部2a与导光部2b的接触部成型有安装台阶,所述光学扩散板1边缘沿周向一体成型有若干定位耳1b,在定位耳1b上设有定位孔1c,螺丝穿过定位孔与安装台阶上对应的盲孔螺纹连接。在导光罩2上沿周向间隔设有安装沉孔2d,导光罩2通过螺丝穿过安装沉孔2d与外部基板连接。
在本实施例中,所述导光罩2呈喇叭形结构的区域内表面,即导光部表面设有反光电镀层3。
同时,在导光罩2开口部端面由内至外依序设有密封圈5、透明防护板6和压紧环7;在密封圈5与导光罩2相对的端面上设有定位条5a,在定位条5a对应的导光罩2上设有与定位条5a相适应的安装槽2c;所述压紧环7通过螺丝与导光罩2固定连接。通过密封圈与透明防护板配合,达到防水、防尘的目的。透明防护板可以优选采用钢化玻璃或透明亚克力板。
使用时,将本发明的扩散装置安装在LED灯珠外围的铝基板或是铝合金散热上,确保灯
珠光线不会从延伸部漏出即可。这样,LED灯珠产生的光线,在经光学扩散罩扩散匀光后,再由导光罩将部分照射至灯具后面的光线收集后再投向灯具前面,使光强更高。
实施例2
参阅图4所示,本发明的一种组合式面光源扩散装置,其结构与实施例1基本相同,不同之处在于,在导光部内套设有反光套4,而未采用反光电镀层3。这种结构,具有方便加工、成品率高的优点。其使用方式与实施例1相同。
实验例
采用追踪探头式运动反光镜分布光度计,对采用本申请实施例1和实施例2结构的面光源射灯和未使用导光罩或者未使用扩散板或者导光罩和扩散板均未使用的同款面光源射灯,在同等条件下,进行光度测试,面光源灯具的色温为5000K,功率为30W,测试结果如图5-图19,图中的面光源作为路灯时的利用系数曲线表,左侧线条由上至下、右侧线条由下至上,分别为0°、5°、10°、15°。作为路灯时,主要参考的是右侧线条。同时根据测试结构,制表如下:
表中,
带扩散板带导光罩近距面光源射灯所采用的光源扩散装置为实施例1所述的结构,其导光部内壁与竖直面之间的夹角α为40°。光学扩散板至导光罩出光口端面之间的间距为25mm。其光学扩散板9上的正四棱锥体的底面边长和高均为1.8mm。
带扩散板带导光罩中距面光源射灯所采用的光源扩散装置为实施例2所述的结构,其导光部内壁与竖直面之间的夹角α为15°。光学扩散板至导光罩出光口端面之间的间距为65mm。其光学扩散板9上的正四棱锥体的底面边长和高均为0.65mm。
表一 光度检测结果之一
表二 光度检测结果之二
从上表结合图5、图6、图11、图12、图14、图15、图17和图18可知,采用本发明光源扩散装置的射灯,相比无扩散板无导光罩面光源射灯,虽然光通量差距很大,但是中心光强却很接近,而且照度距离也接近。也即是说明,面光源射灯在增加扩散板和导光罩后,与无扩散板无导光罩面光源射灯相比,照明效果基本一样,但是本发明的面光源射灯,却具有光线柔和、不刺眼的优点。而无扩散板无导光罩面光源射灯,却存在光线刺眼的缺点。该效果,是非常显著的。
而无扩散板带导光罩面光源射灯,其具有照射距离远、中心光强强的优点。
从上表结合图8、图9、图11、图12、图14、图15、图17和图18可知,采用本发明光源扩散装置的射灯,相比只带扩散罩面光源射灯,其在增加了导光罩后,中心光强显著提高,而且照射角度缩小、照射距离变长。
从图7、图10、图13、图16和图19可知,在同等的距离/高度条件下,作为路灯,采用本发明结构的扩散装置位于路边一侧的利用率和采用无扩散板带导光罩的远距面光源射灯相近,但却远高于无扩散板无导光罩面光源射灯和只带扩散罩面光源射灯。
以上所举实施例为本发明的较佳实施方式,仅用来方便说明本发明,并非对本发明作任何形式上的限制,任何所属技术领域中具有通常知识者,若在不脱离本发明所提技术特征的范围内,利用本发明所揭示技术内容所作出局部更动或修饰的等效实施例,并且未脱离本发明的技术特征内容,均仍属于本发明技术特征的范围内。
Claims (8)
- 一种组合式面光源扩散装置,包括光学扩散板(1),其特征在于,所述光学扩散板(1)外围设有导光罩(2),位于光学扩散板(1)出光面外围的导光罩(2)呈喇叭形结构,该喇叭形结构的内壁与竖直面之间的夹角α为10°~45°;光学扩散板(1)出光面至导光罩(2)出光口端面之间的间距为20~100mm。
- 根据权利要求1所述的一种组合式面光源扩散装置,其特征在于,所述导光罩(2)呈喇叭形结构的区域内表面设有反光电镀层(3)或套设有反光套(4)。
- 根据权利要求1所述的一种组合式面光源扩散装置,其特征在于,所述光学扩散板(1)的至少一侧面上分布有若干光线折射浮点(1a),所述各光线折射浮点(1a)为四棱锥体;所述各四棱锥体的底面边长为0.5~5mm,高为0.4~4.3mm;所述的光学扩散板(1)与光线折射浮点(1a)为一体成型的整体结构。
- 根据权利要求3所述的一种组合式面光源扩散装置,其特征在于,所述光学扩散板(1)上的四棱锥体为正四棱锥体,所述正四棱锥体的底面边长为0.5~2.5mm,高为0.5~2.5mm。
- 根据权利要求1或2所述的一种组合式面光源扩散装置,其特征在于,所述导光罩(2)由延伸部(2a)和呈喇叭形结构的导光部(2b)组成;所述光学扩散板(1)设置在延伸部(2a)与导光部(2b)的接触部区域。
- 根据权利要求5所述的一种组合式面光源扩散装置,其特征在于,在延伸部(2a)与导光部(2b)的接触部成型有安装台阶,所述光学扩散板(1)边缘沿周向一体成型有若干定位耳(1b),在定位耳(1b)上设有定位孔(1c),螺丝穿过定位孔与安装台阶上对应的盲孔螺纹连接。
- 根据权利要求1或2所述的一种组合式面光源扩散装置,其特征在于,所述导光罩(2)开口部端面由内至外依序设有密封圈(5)、透明防护板(6)和压紧环(7);在密封圈(5)与导光罩(2)相对的端面上设有定位条(5a),在定位条(5a)对应的导光罩(2)上设有与定位条(5a)相适应的安装槽(2c);所述压紧环(7)通过螺丝与导光罩(2)固定连接。
- 根据权利要求1所述的一种组合式面光源扩散装置,其特征在于,所述导光罩(2)上设有安装沉孔(2d),导光罩(2)通过螺丝穿过安装沉孔(2d)与外部基板连接。
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110062868A1 (en) * | 2009-09-14 | 2011-03-17 | Domagala Thomas W | High luminous output LED lighting devices |
CN201866610U (zh) * | 2010-09-01 | 2011-06-15 | 杨南辉 | 一种背发光型led室内照明面板灯具 |
CN202629707U (zh) * | 2012-05-30 | 2012-12-26 | 常州广宝光电技术有限公司 | Led筒灯 |
CN202972683U (zh) * | 2012-12-15 | 2013-06-05 | 欧普照明股份有限公司 | 一种筒灯 |
CN103148450A (zh) * | 2013-03-27 | 2013-06-12 | 梅州江南电器有限公司 | Led灯光学扩散板 |
CN203421586U (zh) * | 2013-07-19 | 2014-02-05 | 五邑大学 | 一种基于二次配光设计的高性能led筒灯 |
CN203656635U (zh) * | 2013-12-12 | 2014-06-18 | 上海润尚光电科技有限公司 | 具有匀光效果的led聚光灯 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202001904U (zh) * | 2011-03-08 | 2011-10-05 | 惠州Tcl照明电器有限公司 | 一种led筒灯 |
CN202074299U (zh) * | 2011-05-25 | 2011-12-14 | 深圳市宝莱德光电科技有限公司 | 一种新型led筒灯 |
CN202195379U (zh) * | 2011-07-21 | 2012-04-18 | 梅志国 | 一种led筒灯 |
CN202216126U (zh) * | 2011-08-26 | 2012-05-09 | 浙江生辉照明有限公司 | 一种led筒灯 |
CN202188335U (zh) * | 2011-11-10 | 2012-04-11 | 无锡通明科技有限公司 | 一种小尺寸宽配光led筒灯 |
CN202580694U (zh) * | 2011-12-31 | 2012-12-05 | 扬州新世代光电照明有限公司 | 新型led筒灯 |
-
2017
- 2017-08-18 CN CN201710714103.8A patent/CN107489984A/zh active Pending
- 2017-12-08 WO PCT/CN2017/115177 patent/WO2019033630A1/zh active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110062868A1 (en) * | 2009-09-14 | 2011-03-17 | Domagala Thomas W | High luminous output LED lighting devices |
CN201866610U (zh) * | 2010-09-01 | 2011-06-15 | 杨南辉 | 一种背发光型led室内照明面板灯具 |
CN202629707U (zh) * | 2012-05-30 | 2012-12-26 | 常州广宝光电技术有限公司 | Led筒灯 |
CN202972683U (zh) * | 2012-12-15 | 2013-06-05 | 欧普照明股份有限公司 | 一种筒灯 |
CN103148450A (zh) * | 2013-03-27 | 2013-06-12 | 梅州江南电器有限公司 | Led灯光学扩散板 |
CN203421586U (zh) * | 2013-07-19 | 2014-02-05 | 五邑大学 | 一种基于二次配光设计的高性能led筒灯 |
CN203656635U (zh) * | 2013-12-12 | 2014-06-18 | 上海润尚光电科技有限公司 | 具有匀光效果的led聚光灯 |
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