TWI381137B

TWI381137B - Illumination apparatus

Info

Publication number: TWI381137B
Application number: TW98143020A
Authority: TW
Inventors: Yu Shu Chen; Ming Chin Chien; Chih Ming Lai
Original assignee: Foxsemicon Integrated Tech Inc
Priority date: 2009-12-16
Filing date: 2009-12-16
Publication date: 2013-01-01
Also published as: TW201122363A

Description

照明裝置 Lighting device

本發明涉及一種照明裝置，特別係指一種發光二極體照明裝置。 The invention relates to a lighting device, in particular to a lighting diode lighting device.

作為一種新興的光源，發光二極體憑藉其發光效率高、體積小、重量輕、環保等優點，已被廣泛地應用到路燈照明當中，大有取代傳統光源的趨勢。 As an emerging light source, the light-emitting diode has been widely used in street lighting because of its high luminous efficiency, small size, light weight, environmental protection, etc., and has a tendency to replace the traditional light source.

為滿足道路照明需求，路燈需要投射出沿道路方向延伸的光型。通常而言，這種光型最好能接近橢圓或者長方形，以儘量切合道路的形狀。然而，由於發光二極體直接產生的光型往往呈圓形，很難滿足道路照明的需求。因此，業界採用了各種不同的方法來對發光二極體的光型進行調整，其中最為常見的一種方法係將發光二極體設置於燈殼內的不同平面上，並使各個不同平面的發光二極體以一定的角度傾斜，由此，發光二極體發出的光線可被投射在較寬的範圍內，從而在道路上產生長形的光型。然而，由於需為發光二極體提供不同高度的傾角，該種燈具的燈殼體積及重量往往較大，並且製造成本也較高。業界另一種通用的方法就係在發光二極體上加裝配光透鏡。該種方法雖然可以很好地解決燈殼體積及重量過大的問題，然而其本身卻也存在一些缺陷，比如會吸收發光二極體的光線而造成光損，導致輸出光強不足。並且，透鏡的模具開發成本較高，亦不利於節約成本。 In order to meet the needs of road lighting, street lamps need to project a light pattern that extends along the road. In general, this type of light is preferably close to an ellipse or rectangle to best match the shape of the road. However, since the light pattern directly generated by the light-emitting diode tends to be circular, it is difficult to meet the needs of road lighting. Therefore, the industry has adopted various methods to adjust the light pattern of the light-emitting diode. The most common method is to place the light-emitting diodes on different planes in the lamp housing and to make the light of different planes. The diodes are inclined at an angle, whereby the light emitted by the light-emitting diodes can be projected over a wide range, thereby producing an elongated light pattern on the road. However, due to the need to provide different height tilt angles for the light-emitting diodes, the lamp housings of such lamps tend to be bulky and heavy, and the manufacturing cost is also high. Another common method in the industry is to attach a light lens to the light-emitting diode. Although this method can well solve the problem of excessive volume and weight of the lamp housing, there are some defects in itself, such as light absorption of the light-emitting diode and light loss, resulting in insufficient output light intensity. Moreover, the lens development cost of the lens is high, which is not conducive to cost saving.

本發明旨在提供一種可滿足道路照明需求的照明裝置，其製造成本較為低廉且光損較小。 The present invention aims to provide a lighting device that can meet the needs of road lighting, which is relatively inexpensive to manufacture and has a small light loss.

一種照明裝置，包括一光源，其還包括一部份環繞光源的反射罩，該反射罩包括一對第二反射壁及一對將該二反射壁連接至一起的第一反射壁，該二第二反射壁之間至少有一敞口，該二第二反射壁及二第一反射壁之間至少有一對相對傾斜設置，以將光源發出的光線穿過敞口朝向相反的兩側反射，並整體上偏向道路內側照射。 A lighting device includes a light source, further comprising a reflector partially surrounding the light source, the reflector comprising a pair of second reflective walls and a pair of first reflective walls connecting the two reflective walls together At least one opening between the two reflective walls, at least one pair of oppositely disposed between the two second reflective walls and the two first reflective walls to reflect light emitted from the light source through the opening toward opposite sides, and the whole The upper side is illuminated towards the inside of the road.

與習知技術相比，本發明通過反射罩將光源的光線朝向相反的兩側射出，使輸出光型具有較寬的覆蓋範圍，符合道路照明的需求。相比於配光透鏡，反射罩的製造成本較低，且對於光線的吸收率較低，所造成的光損較小，更適於產業利用。 Compared with the prior art, the present invention emits the light of the light source toward the opposite sides through the reflector, so that the output light pattern has a wide coverage and meets the requirements of road lighting. Compared with the light distribution lens, the reflector has a low manufacturing cost and a low light absorption rate, and the light loss is small, which is more suitable for industrial use.

請參閱圖1-3，示出了本發明第一實施例的照明裝置。該照明裝置包括一反射罩10及收容於該反射罩10內的一第一發光二極體60及一第二發光二極體70。該反射罩10包括一底座20及一垂直形成於該底座20上的側壁30。該側壁30大致呈“M”形，其由二對稱的一第一反射部40及一第二反射部50組成。該第一反射部40包括長度依次遞增的第三反射壁42、第二反射壁44及第一反射壁46。第三反射壁42及第一反射壁46分別自第二反射壁44相對兩側反向傾斜延伸，第三反射壁42與第一反射壁46末端之間形成一敞口400。第三反射壁42與第二反射壁44連接，二者間形成一115度的夾角。第三反射壁42的寬度自第二反射壁44向前逐漸減小，由此，第三反射壁42整體上大致呈現出一三角的形狀。第二反射壁44的寬度略小於第一反射壁46的寬度。第一反射壁46一端與第二反射壁44連接，另一端與第二反射部50的第一反射壁56的末端連接。第一反射壁46與第二反射壁44亦形成115度的夾角，與相鄰的第一反射壁56形成310度的夾角。底座20在對應每一反射部40、50的位置處開設一開孔22、24，以供相應的發光二極體60、70穿設。開孔22靠近第二反射壁44、54且整體上大致呈方形。第一發光二極體60收容於左側的開孔22內，第二發光二極體70收容於右側的開孔24內。該反射罩10被以平行道路路面的方式設置於路燈(圖未示)內，其中反射罩10的底座20平行路面，側壁30與路面垂直，且敞口400、500朝向道路內側。由於反射罩10左右兩端為開放的敞口400、500，當第一發光二極體60被點亮時，其朝向左側發出的部分光線a將自反射罩10左側敞口400直接射出反射罩10外(發光二極體發出的光線一般呈立體錐形分佈，因此實際上光線在沿側壁30的高度方向也有一個分量，但該分量對本實施例中光線反射的影響不大，因此未在圖中表示，下同)，另外部分光線d將被反射罩10的第三反射壁42反射為朝向右側出射反射罩10外。由於第三反射壁42的長度較小，因此光線a與光線d的總量相差不大。第一發光二極體60朝向右側發出的部分光線b被第一反射壁46所阻擋而向左反射，並從敞口400出射反射罩10外，另外部分光線e直接從右側出射反射罩10外。由於第一反射壁46的長度較大，被第一反射壁46所反射的光線b的量遠多於直接出射的光線e的量。因此，整體上看，最終朝向左側出射的光線a與b的總量要大於朝向右側出射的光線d與e的總量，換言之，第一發光二極體60的光線被第一反射部40朝向左側調整。此外，第一發光二極體60還有部分光線c會被第二反射壁44所反射，由於入射角及反射角均較小，因此這部分光線c基本上都會朝道路內側出射，從而提升在道路內側的照度。同理，第二發光二極體70的光線(圖中僅示出了兩類光線a及b)經過第二反射部50的調整之後將整體上朝向右側出射。經過反射罩10調整之後，第一發光二極體60及第二發光二極體70的光線可被分別朝向左右兩側出射，從而使出射光呈現出長形的分佈，滿足道路照明的需求。此外，由於二敞口400、500被隔設於反射罩10相反的兩側，經左側敞口400出射的光線a及b與經右側敞口500出射的光線a及b之間基本上不會發生干涉。 Referring to Figures 1-3, a lighting device in accordance with a first embodiment of the present invention is illustrated. The illumination device includes a reflector cover 10 and a first LED assembly 60 and a second LED assembly 70 received in the reflector 10. The reflector 10 includes a base 20 and a side wall 30 vertically formed on the base 20. The side wall 30 is substantially in the shape of an "M", and is composed of a first reflecting portion 40 and a second reflecting portion 50 which are symmetric. The first reflecting portion 40 includes a third reflecting wall 42 having a length increasing in order, a second reflecting wall 44, and a first reflecting wall 46. The third reflective wall 42 and the first reflective wall 46 respectively extend obliquely from opposite sides of the second reflective wall 44, and an opening 400 is formed between the third reflective wall 42 and the end of the first reflective wall 46. The third reflective wall 42 is connected to the second reflective wall 44, two A 115 degree angle is formed between the two. The width of the third reflecting wall 42 gradually decreases from the second reflecting wall 44, whereby the third reflecting wall 42 generally assumes a triangular shape as a whole. The width of the second reflective wall 44 is slightly smaller than the width of the first reflective wall 46. One end of the first reflection wall 46 is connected to the second reflection wall 44, and the other end is connected to the end of the first reflection wall 56 of the second reflection portion 50. The first reflective wall 46 and the second reflective wall 44 also form an angle of 115 degrees, forming an angle of 310 degrees with the adjacent first reflective wall 56. The base 20 defines an opening 22, 24 at a position corresponding to each of the reflecting portions 40, 50 for the corresponding light emitting diodes 60, 70 to pass through. The opening 22 is adjacent to the second reflective walls 44, 54 and is generally generally square. The first light-emitting diode 60 is housed in the opening 22 on the left side, and the second light-emitting diode 70 is received in the opening 24 on the right side. The reflector 10 is disposed in a street lamp (not shown) in a parallel road surface, wherein the base 20 of the reflector 10 is parallel to the road surface, the side wall 30 is perpendicular to the road surface, and the openings 400, 500 are oriented toward the inside of the road. Since the left and right ends of the reflector 10 are open openings 400 and 500, when the first LED 206 is illuminated, part of the light a emitted toward the left side will be directly emitted from the left side opening 400 of the reflector 10 to the reflector. 10 (the light emitted by the light-emitting diode is generally distributed in a three-dimensional shape, so that the light actually has a component along the height direction of the side wall 30, but this component has little effect on the light reflection in this embodiment, so it is not in the figure. In the middle, the same part of the light ray d will be reflected by the third reflecting wall 42 of the reflecting cover 10 to the outside of the reflecting cover 10 toward the right side. Since the length of the third reflecting wall 42 is small, the total amount of the light a and the light d is not much different. A part of the light b emitted from the first light-emitting diode 60 toward the right side is blocked by the first reflective wall 46 and is reflected to the left, and is emitted from the open 400 outside the reflective cover 10, and another part of the light e is directly emitted from the right side outside the reflective cover 10. . Since the first reflective wall 46 has a large length, it is first reflected The amount of light b reflected by wall 46 is much greater than the amount of light e that is directly emitted. Therefore, as a whole, the total amount of the light rays a and b which are finally emitted toward the left side is larger than the total amount of the light rays d and e which are emitted toward the right side, in other words, the light of the first light-emitting diode 60 is directed by the first reflecting portion 40. Adjust on the left side. In addition, the first light-emitting diode 60 and a portion of the light ray c are reflected by the second reflective wall 44. Since the incident angle and the reflection angle are both small, the light ray c is substantially emitted toward the inner side of the road, thereby being lifted. Illumination on the inside of the road. Similarly, the light of the second light-emitting diode 70 (only two types of light rays a and b are shown in the figure) are adjusted toward the right side after being adjusted by the second reflecting portion 50. After being adjusted by the reflector 10, the light of the first light-emitting diode 60 and the second light-emitting diode 70 can be respectively emitted toward the left and right sides, so that the emitted light exhibits an elongated distribution to meet the needs of road lighting. In addition, since the two openings 400, 500 are spaced apart from opposite sides of the reflector 10, the light rays a and b emitted through the left side opening 400 and the light rays a and b emitted through the right side opening 500 are substantially not Interference has occurred.

可以理解地，上述第二反射壁44、54還可如圖4中所示的朝向敞口400、500方向傾斜一角度，以使光線c更進一步地朝向道路內側傾斜出射，使道路內側的照度進一步得到提升。另外，上述各反射壁42、44、46、52、54、56的反射面可均為平面。 It can be understood that the second reflective walls 44, 54 can also be inclined at an angle toward the open sides 400, 500 as shown in FIG. 4, so that the light c is further inclined toward the inner side of the road, so that the illumination on the inner side of the road Further improved. Further, the reflecting surfaces of the respective reflecting walls 42, 44, 46, 52, 54, 56 may be flat.

圖5-6示出了本發明第二實施例的照明裝置，其反射罩10a亦係由二對稱的第一反射部40a及第二反射部50a形成的半包圍結構，與第一實施例所不同的係第二實施例中的反射罩10a僅有一敞口400a。第一反射部40a亦由一第三反射壁42a、一第二反射壁44a及一第一反射壁46a 連接而成，其中第三反射壁42a及第一反射壁46a分別自第二反射壁44a相對兩端反向傾斜延伸。第三反射壁42a與第一反射壁46a的長度及寬度相當，且大於第二反射壁44a的長度及寬度。第三反射壁42a與第二反射壁44a形成115度的夾角，第二反射壁44a亦與第一反射壁46a形成115度的夾角，第一反射壁46a與第二反射部50a的第一反射壁56a形成170度的夾角。反射罩10a的底座20a在靠近二第二反射壁44a的位置處開設有二開孔22a、24a，以供相應的發光二極體60、70穿入。該反射罩10a在路燈中的安裝方式與第一實施例的相同，均係以底座20a平行路面，側壁30a垂直路面以及敞口400a朝向道路內側。第一發光二極體60安裝於左側的第一反射部40a內，其朝右發出的部分光線a直接經敞口400a出射反射罩10a外，部分光線b經第三反射壁42a反射後也經過敞口400a出射反射罩10a外，還有部分光線c經過第三反射壁42a的反射後仍然朝向右出射反射罩10a外(由於光線c在行進過程中還在側壁30a的高度方向有一分量，因此其在行進過程中將逐漸升高，有一定幾率直接從第二反射部50a的第三反射壁52a的頂部上方穿過，而不會再被第三反射壁52a所反射，故只要將側壁30a的高度控制在合理的範圍內，就可在較大程度上避免光線c在反射罩10a內來回反射的情況，其他光線亦係如此)。第一發光二極體60朝向左側發出的部分光線d亦被第三反射壁42a所反射而朝向右側出射反射罩10a外，還有部分光線e經過第二反射壁44a的反射後也朝右出射反射罩10a外。由此，第一發光二極體60的大部分光線都可別第一反射部40a調整為向右出射。同理，第二發光二極體70的大部分光線亦都被第二反射部50a調整為向左出射。由於需經過同一敞口400a，經反射罩10a反射後的第一發光二極體60發出的光線b以及由第一發光二極體60直接出射的光線a將會與經反射罩10a反射後的第二發光二極體70發出的光線b以及由第二發光二極體70直接出射的光線a交叉干涉之後再分別繼續向右及向左行進，從而在道路上投射出長形的光型。 5-6 shows a lighting device according to a second embodiment of the present invention, wherein the reflector 10a is also a semi-enclosed structure formed by two symmetric first reflecting portions 40a and second reflecting portions 50a, and the first embodiment. The different reflection cover 10a in the second embodiment has only one opening 400a. The first reflecting portion 40a is also composed of a third reflecting wall 42a, a second reflecting wall 44a and a first reflecting wall 46a. Connected, wherein the third reflective wall 42a and the first reflective wall 46a extend obliquely opposite from opposite ends of the second reflective wall 44a, respectively. The third reflective wall 42a corresponds to the length and width of the first reflective wall 46a and is larger than the length and width of the second reflective wall 44a. The third reflective wall 42a forms an angle of 115 degrees with the second reflective wall 44a. The second reflective wall 44a also forms an angle of 115 degrees with the first reflective wall 46a, and the first reflection of the first reflective wall 46a and the second reflective portion 50a. Wall 56a forms an angle of 170 degrees. The base 20a of the reflector 10a is provided with two openings 22a, 24a at positions close to the second reflecting walls 44a for the corresponding light-emitting diodes 60, 70 to penetrate. The reflector 10a is mounted in the streetlight in the same manner as in the first embodiment, with the base 20a being parallel to the road surface, the side wall 30a being perpendicular to the road surface, and the opening 400a facing the inside of the road. The first light-emitting diode 60 is mounted in the first reflective portion 40a on the left side, and a portion of the light ray a emitted toward the right exits the reflective cover 10a directly through the opening 400a, and a portion of the light b is reflected by the third reflective wall 42a. The opening 400a exits the reflector 10a, and a portion of the light c is reflected out of the third reflecting wall 42a and still faces out of the reflecting cover 10a (because the light c has a component in the height direction of the side wall 30a during traveling), It will gradually increase during the traveling, and has a certain probability to pass directly above the top of the third reflecting wall 52a of the second reflecting portion 50a without being reflected by the third reflecting wall 52a, so that the side wall 30a is only required The height is controlled within a reasonable range, so that the light c can be prevented from being reflected back and forth in the reflector 10a to a large extent, as is the case with other light. A portion of the light ray d emitted from the first light-emitting diode 60 toward the left side is also reflected by the third reflective wall 42a and exits the reflective cover 10a toward the right side, and a portion of the light ray e is reflected toward the right after being reflected by the second reflective wall 44a. Outside the reflector 10a. Thereby, most of the light of the first light-emitting diode 60 can be adjusted to be emitted to the right by the first reflecting portion 40a. with Most of the light of the second light-emitting diode 70 is also adjusted by the second reflecting portion 50a to be emitted to the left. The light b emitted by the first light-emitting diode 60 reflected by the reflector 10a and the light a directly emitted by the first light-emitting diode 60 will be reflected by the reflector 10a. The light b emitted from the second light-emitting diode 70 and the light a directly emitted from the second light-emitting diode 70 cross-interferely and then continue to travel rightward and leftward, respectively, thereby projecting an elongated light pattern on the road.

可以理解地，本實施例中的第二反射壁44a、54a及第一反射壁46a、56a亦可如第一實施例中的第二反射壁44、54一般朝向敞口400a傾斜一角度，以增大投射在道路內側的照度。 It can be understood that the second reflective walls 44a, 54a and the first reflective walls 46a, 56a in this embodiment can also be inclined at an angle toward the opening 400a as the second reflective walls 44, 54 in the first embodiment. Increase the illumination projected on the inside of the road.

此外，第一實施例中的反射罩10與第二實施例中的反射罩10a還可組成如圖7中所示的反光架，其輸出光型的配光曲線如圖8所示。從圖8中的90度的配光曲線80(圖中的實線)可看出，在沿道路方向，光線被分佈在0~80度的範圍內，其中在0~50度範圍內的強度變化較為均勻(應當指出，上述二實施例中的發光二極體60、70的光線反射都係以出射角相對較大的光線來舉例的，實際上還應當有相當一部分出射角較小的光線不會經過反射罩10、10a的反射而直接從反射罩10、10a的頂部出射，而這部分出射角小的光線恰恰係發光二極體60、70發出的所有光線中光強最大的一部分，因此配光曲線越接近0度，光強越大)，其變化程度遠小於在50~80度範圍內的強度變化，因此，輸出光型整體上呈現出長形分佈，可基本滿足道路照明的需求。並且，從0度配光曲線82(圖中的虛線)上可看出，在垂直於道路方向上，光強整體偏向道路內側傾斜，從而可有效提升道路內側的照度，為在道路內側上行駛的車輛提供充分的照明。 Further, the reflecting cover 10 in the first embodiment and the reflecting cover 10a in the second embodiment may also constitute a reflecting frame as shown in FIG. 7, and the light distribution curve of the output light type is as shown in FIG. From the 90 degree light distribution curve 80 (solid line in the figure) in Fig. 8, it can be seen that in the direction along the road, the light is distributed in the range of 0 to 80 degrees, and the intensity in the range of 0 to 50 degrees. The change is relatively uniform (it should be noted that the light reflections of the light-emitting diodes 60, 70 in the above two embodiments are exemplified by light having a relatively large exit angle, and actually a relatively small portion of the light having a small exit angle should be present. It does not directly exit from the top of the reflectors 10, 10a through the reflection of the reflectors 10, 10a, and this portion of the light having a small exit angle is exactly the portion of the light intensity of all the light emitted by the LEDs 60, 70. Therefore, the closer the light distribution curve is to 0 degree, the greater the light intensity, the degree of change is much smaller than the intensity change in the range of 50 to 80 degrees. Therefore, the output light pattern exhibits an elongated distribution as a whole, which can basically satisfy the road illumination. demand. And, from the 0 degree light distribution curve 82 (the dotted line in the figure) It can be seen that in the direction perpendicular to the road, the light intensity is inclined toward the inner side of the road as a whole, so that the illuminance on the inner side of the road can be effectively improved, and sufficient illumination can be provided for the vehicle traveling on the inner side of the road.

另外，本發明的照明裝置還可為各個反射罩10、10a配備一散射透鏡90，該等散射透鏡90可以公知的方法，如各自分離地固定在相應的反射罩10、10a上方，或者如圖9般通過燈罩92集成為一體而整體架設於反射罩10、10a上。通過設置散射透鏡90，輸出光的配光曲線可被調整為更符合道路照明的需求。如圖10所示，路燈在沿道路方向上的光強(參見圖中以實線標示的90度配光曲線84)分佈更加均勻，在垂直於道路方向上的光強(圖中中以虛線標示的0度配光曲線86)則更向道路內側傾斜。 In addition, the illumination device of the present invention can also be provided with a scattering lens 90 for each of the reflectors 10, 10a. The scattering lenses 90 can be fixedly mounted on the respective reflectors 10, 10a, or as shown in the figure. 9 is integrally integrated with the reflectors 10, 10a through the lampshade 92. By providing the diffusing lens 90, the light distribution curve of the output light can be adjusted to more closely meet the needs of road lighting. As shown in Figure 10, the street light is more evenly distributed in the direction of the road (see the 90 degree light distribution curve 84 indicated by the solid line in the figure), and the light intensity in the direction perpendicular to the road (in the figure, the dotted line The marked 0 degree light distribution curve 86) is more inclined to the inside of the road.

與習知技術相比，本發明的反光罩10、10a不僅製造成本低，適於大批量生產，且光損較小，有利於提升輸出光強。 Compared with the prior art, the reflectors 10 and 10a of the present invention are not only low in manufacturing cost, but also suitable for mass production, and have small light loss, which is advantageous for increasing the output light intensity.

綜上所述，本發明符合發明專利要件，爰依法提出專利申請。惟，以上所述者僅為本發明之較佳實施例，舉凡熟悉本案技藝之人士，在爰依本發明精神所作之等效修飾或變化，皆應涵蓋於以下之申請專利範圍內。 In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. The above description is only the preferred embodiment of the present invention, and equivalent modifications or variations made by those skilled in the art will be included in the following claims.

10、10a‧‧‧反射罩 10, 10a‧‧ ‧ reflector

20、20a‧‧‧底座 20, 20a‧‧‧ base

22、22a、24、24a‧‧‧開孔 22, 22a, 24, 24a‧‧‧ openings

30、30a‧‧‧側壁 30, 30a‧‧‧ side wall

40、40a‧‧‧第一反射部 40, 40a‧‧‧ first reflection

400、400a、500‧‧‧敞口 400, 400a, 500‧‧ ‧ exposure

42、42a、52、52a‧‧‧第三反射壁 42, 42a, 52, 52a‧‧‧ third reflective wall

44、44a、54、54a‧‧‧第二反射壁 44, 44a, 54, 54a‧‧‧ second reflective wall

46、46a、56、56a‧‧‧第一反射壁 46, 46a, 56, 56a‧‧‧ first reflective wall

50、50a‧‧‧第二反射部 50, 50a‧‧‧second reflection

60‧‧‧第一發光二極體 60‧‧‧first light-emitting diode

70‧‧‧第二發光二極體 70‧‧‧Second light-emitting diode

80、82、84、86‧‧‧配光曲線 80, 82, 84, 86‧‧‧ light distribution curve

90‧‧‧散射透鏡 90‧‧‧scattering lens

92‧‧‧燈罩 92‧‧‧shade

圖1係本發明第一實施例的照明裝置中的反射罩的立體圖。 1 is a perspective view of a reflection cover in a lighting device of a first embodiment of the present invention.

圖2係第一實施例的照明裝置的反射罩及二發光二極體組裝後的俯視圖。 Fig. 2 is a plan view showing the reflector of the illuminating device of the first embodiment and the two light emitting diodes assembled.

圖3係圖2的截面圖。 Figure 3 is a cross-sectional view of Figure 2.

圖4與圖3類似，但反射罩的第二反射壁被傾斜一角度。 Figure 4 is similar to Figure 3 except that the second reflective wall of the reflector is tilted at an angle.

圖5係本發明第二實施例的照明裝置中的反射罩的立體圖。 Fig. 5 is a perspective view of a reflector in the lighting device of the second embodiment of the present invention.

圖6係第二實施例的照明裝置的反射罩及二發光二極體組裝後的俯視圖。 Fig. 6 is a plan view showing the reflection cover and the two light emitting diodes of the illumination device of the second embodiment after assembly.

圖7示出了第一實施例的照明裝置中的反射罩與第二實施例中的照明裝置中的反射罩的組合成的反光架。 Fig. 7 shows a combination of a reflection cover in the illumination device of the first embodiment and a reflection cover in the illumination device in the second embodiment.

圖8為圖7中的反光架的配光曲線圖。 Figure 8 is a light distribution diagram of the reflector of Figure 7.

圖9為在圖7的反光架的基礎上加裝了一燈罩。 Figure 9 is a view of the reflector of Figure 7 based on the addition of a lampshade.

圖10為圖9的反光架及燈罩的配光曲線圖。 Fig. 10 is a light distribution diagram of the reflector frame and the lamp cover of Fig. 9.

10、10a‧‧‧反射罩 10, 10a‧‧ ‧ reflector

Claims

一種照明裝置，包括一光源，其改良在於：其還包括一部份環繞光源的反射罩，該反射罩包括一對第二反射壁及一對將該二反射壁連接至一起的第一反射壁，該二第二反射壁之間至少有一敞口，該二第二反射壁及二第一反射壁之中至少有一對相對傾斜設置，以將光源發出的光線穿過敞口朝向相反的兩側反射，並整體上偏向道路內側照射。 A lighting device comprising a light source, the improvement comprising: a reflector partially surrounding the light source, the reflector comprising a pair of second reflective walls and a pair of first reflective walls connecting the two reflective walls together At least one of the two second reflective walls and the two first reflective walls are oppositely disposed to obliquely pass light from the light source toward the opposite sides. Reflected and illuminate the inside of the road as a whole.

如申請專利範圍第1項所述之照明裝置，其中二第一反射壁相對傾斜設置以將光源發出的光線穿過敞口朝向相反的兩側反射。 The illuminating device of claim 1, wherein the two first reflecting walls are oppositely disposed to reflect light emitted from the light source through the opening toward opposite sides.

如申請專利範圍第2項所述之照明裝置，其中二第二反射壁相對傾斜設置以將光源發出的光線穿過敞口朝向相反的兩側反射。 The illuminating device of claim 2, wherein the two second reflecting walls are oppositely disposed to reflect light emitted from the light source through the opening toward opposite sides.

如申請專利範圍第2項所述之照明裝置，其中二第一反射壁之間形成大於270度的夾角。 The illuminating device of claim 2, wherein an angle of more than 270 degrees is formed between the two first reflecting walls.

如申請專利範圍第3項所述之照明裝置，其中二第一反射壁之間形成小於180度並大於90度的夾角。 The illuminating device of claim 3, wherein an angle between the two first reflecting walls is less than 180 degrees and greater than 90 degrees.

如申請專利範圍第1項所述之照明裝置，其中每一第二反射壁與相鄰的第一反射壁之間形成一小於180度的夾角。 The illumination device of claim 1, wherein each of the second reflective walls forms an angle of less than 180 degrees with the adjacent first reflective walls.

如申請專利範圍第1項所述之照明裝置，其中該反射罩還包括一對分別連接至二第二反射壁的的第三反射壁，該二第三反射壁相對傾斜設置。 The illuminating device of claim 1, wherein the reflector further comprises a pair of third reflecting walls respectively connected to the two second reflecting walls, the two third reflecting walls being oppositely inclined.

如申請專利範圍第7項所述之照明裝置，其中該二第三反射壁反向延伸。 The illuminating device of claim 7, wherein the two third reflecting walls extend in opposite directions.

如申請專利範圍第8項所述之照明裝置，其中該二第三反射壁與二第一反射壁之間分別形成二分隔的敞口，光源被二第一反射壁反射的光線分別經由該二敞口反向射出。 The lighting device of claim 8, wherein the second third counter A two-divided opening is formed between the wall and the two first reflecting walls, and the light reflected by the two first reflecting walls is respectively reversed through the two openings.

如申請專利範圍第7項所述之照明裝置，其中該二第三反射壁相向延伸。 The illuminating device of claim 7, wherein the two third reflecting walls extend toward each other.

如申請專利範圍第10項所述之照明裝置，其中該二第三反射壁之間形成一敞口，光源被二第一反射壁反射的光線均經過該敞口反向射出。 The illuminating device of claim 10, wherein an opening is formed between the two third reflecting walls, and the light reflected by the two first reflecting walls is reversely emitted through the opening.

如申請專利範圍第1至10任一項所述之照明裝置，其中該光源包括二發光二極體。 The illuminating device of any one of claims 1 to 10, wherein the light source comprises two light emitting diodes.

如申請專利範圍第12項所述之照明裝置，其中該二發光二極體分別靠近二第二反射壁。 The illuminating device of claim 12, wherein the two illuminating diodes are respectively adjacent to the second reflecting walls.

如申請專利範圍第13項所述之照明裝置，其中該二第二側壁朝向發光二極體傾斜。 The illuminating device of claim 13, wherein the two second side walls are inclined toward the light emitting diode.

如申請專利範圍第13項所述之照明裝置，其中該二第三側壁朝向發光二極體傾斜。 The illuminating device of claim 13, wherein the two third side walls are inclined toward the light emitting diode.

如申請專利範圍第1至10任一項所述之照明裝置，其中該照明裝置還包括一散射透鏡，該散射透鏡正對於反射罩。 The illuminating device of any one of claims 1 to 10, wherein the illuminating device further comprises a diffusing lens facing the reflecting cover.

如申請專利範圍第16項所述之照明裝置，其中該照明裝置還包括一燈罩，該散射透鏡集成於燈罩上。 The illuminating device of claim 16, wherein the illuminating device further comprises a lamp cover, the diffusing lens being integrated on the lamp cover.