TWI713895B - Illumination device - Google Patents
Illumination device Download PDFInfo
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- TWI713895B TWI713895B TW107132624A TW107132624A TWI713895B TW I713895 B TWI713895 B TW I713895B TW 107132624 A TW107132624 A TW 107132624A TW 107132624 A TW107132624 A TW 107132624A TW I713895 B TWI713895 B TW I713895B
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Abstract
Description
本發明是有關於一種照明裝置,且特別是有關於一種具有遮光罩的照明裝置。 The present invention relates to a lighting device, and more particularly to a lighting device with a light shield.
使用於夜間照明的照明裝置,例如路燈、壁燈或戶外探照燈等,可設置在人行道、馬路周圍或大樓周圍等。以路燈為例,根據不同道路條件,有必要調整路燈的照明光型、光強以及色溫,以符合市場需求。例如:對於同一盞路燈來說,部分照明區域的光線要強,以提局見度;另一部分的照明區域的光線要弱,以降低亮度。 Lighting devices used for night lighting, such as street lamps, wall lamps, or outdoor searchlights, can be installed on sidewalks, roads, or buildings. Taking street lamps as an example, according to different road conditions, it is necessary to adjust the illumination light type, light intensity and color temperature of street lamps to meet market demand. For example, for the same street light, the light in some illuminated areas should be strong to improve visibility; the light in the other illuminated areas should be weak to reduce brightness.
因此,如何在不改變燈具外型的情況下,設計可調整照明條件的技術手段,以符合市場需求,實為業界所欲解決的課題。 Therefore, how to design technical means that can adjust the lighting conditions without changing the appearance of the lamp to meet market needs is a problem that the industry wants to solve.
本發明係有關於一種照明裝置,可藉由遮光罩至少部分覆蓋出光表面,以達到不同的照明效果。 The present invention relates to a lighting device, which can at least partially cover the light-emitting surface with a light-shading cover to achieve different lighting effects.
根據本發明之一方面,提出一種照明裝置,包括一燈具以及一遮光罩。燈具具有一前燈罩(front lamp cover), 前燈罩具有一出光表面。遮光罩至少部分覆蓋出光表面,用以降低燈具出射的光能,遮光罩的透光度小於一預設值。 According to one aspect of the present invention, a lighting device is provided, which includes a lamp and a light shield. The lamp has a front lamp cover, The front lamp cover has a light emitting surface. The light-shielding cover at least partially covers the light-emitting surface to reduce the light energy emitted by the lamp, and the transmittance of the light-shielding cover is less than a preset value.
為了對本發明之上述及其他方面有更佳的瞭解,下文特舉實施例,並配合所附圖式詳細說明如下: In order to have a better understanding of the above and other aspects of the present invention, the following specific examples are given in conjunction with the accompanying drawings to describe in detail as follows:
100:照明裝置 100: lighting device
110:燈具 110: lamps
111:周圍 111: around
112:前燈罩 112: Front lamp shade
113:出光表面 113: Glossy surface
120:遮光罩 120: hood
121:周圍 121: Around
122:殼體 122: shell
123:染料 123: Dye
124:柔光微結構 124: Soft light microstructure
125:柱狀透鏡 125: Cylindrical lens
126:奈米塗層 126: Nano coating
127:半圓形透鏡 127: Semicircular lens
F:第一出光區 F: The first light-emitting area
R:第二出光區 R: second light zone
M:中央出光區 M: Central light emitting area
O:開口 O: opening
S1:內表面 S1: inner surface
S2:外表面 S2: outer surface
L、L1、L2:光線 L, L1, L2: light
第1A及1B圖繪示依照本發明一實施例的照明裝置的遮光罩組裝前與組裝後的示意圖。 1A and 1B are schematic diagrams of the light shield of the lighting device according to an embodiment of the invention before and after assembly.
第2圖繪示依照本發明另一實施例的照明裝置的示意圖。 Figure 2 is a schematic diagram of a lighting device according to another embodiment of the invention.
第3圖繪示依照本發明另一實施例的照明裝置的示意圖。 FIG. 3 is a schematic diagram of a lighting device according to another embodiment of the invention.
第4圖繪示依照本發明一實施例的照明裝置於X-Z平面的剖面示意圖。 FIG. 4 is a schematic cross-sectional view of the lighting device in the X-Z plane according to an embodiment of the present invention.
第5圖繪示光通過柔光微結構的示意圖。 Figure 5 shows a schematic diagram of light passing through the soft light microstructure.
第6圖繪示依照本發明一實施例的柔光微結構於X-Y平面的示意圖。 FIG. 6 is a schematic diagram of a soft-light microstructure in an X-Y plane according to an embodiment of the present invention.
第7圖繪示依照本發明另一實施例的柔光微結構的示意圖。 FIG. 7 is a schematic diagram of a soft light microstructure according to another embodiment of the invention.
以下係提出實施例進行詳細說明,實施例僅用以作為範例說明,並非用以限縮本發明欲保護之範圍。以下是以相同/類似的符號表示相同/類似的元件做說明。 The following examples are provided for detailed description. The examples are only used as examples for description, and are not intended to limit the scope of the present invention. In the following description, the same/similar symbols represent the same/similar elements.
請參照第1A及1B圖之照明裝置100,其包括一燈具110以及一遮光罩120。燈具110具有一前燈罩112以及一發光
元件114,前燈罩112具有一出光表面113。遮光罩120至少部分覆蓋出光表面113,用以降低燈具110出射的光能或過濾部分光波段,使遮光罩120的透光度小於一預設值。一般而言,發光元件114設置於燈具110內並由前燈罩112所保護,發光元件114通常會遠離前燈罩112。發光元件114例如是發光二極體陣列元件或其他發光源。
Please refer to the
在一實施例中,遮光罩120的周圍121與燈具110的周圍111相對應接合,可以鎖固或卡固的方式將遮光罩120固定在燈具110上。又或在部份的實施例中,遮光罩120的內表面S1可與前燈罩112的出光表面113接合,例如可以黏膠方式使內表面S1固著於出光表面113上、以抽真空貼合的方式使內表面S1附著在出光表面113上。較佳地,遮光罩120與前燈罩112係完全密閉,更佳係遮光罩120與前燈罩112完全貼合,以避免水氣進入並殘留其中。
In an embodiment, the
遮光罩120例如是呈拱形的弧形結構,可配合前燈罩112的外型(例如弧形),以使遮光罩120的形狀與被覆蓋的前燈罩112的出光表面113的形狀互相配合。此外,在另一未繪示的實施例中,遮光罩120例如為一平板結構,以配合前燈罩112的外型(例如平面型)。
The
在一實施例中,遮光罩120係根據所欲改善的照明區域來覆蓋對應部分的出光表面113,例如覆蓋出光表面113的前部、後部或前部及後部,用以降低由出光表面113的前部及/或後
部出射的光能或過濾部分光波段。如第1B圖所示,遮光罩120覆蓋位於出光表面113前部的一第一出光區F。如第2圖所示,遮光罩120覆蓋位於出光表面113後部的一第二出光區R。如第3圖所示,遮光罩120的中央具有一開口O,與燈具110的中央出光區M相對,遮光罩120覆蓋位於出光表面113前部及後部的第一出光區F以及第二出光區R,其中第一出光區F與第二出光區R位於燈具110之中央出光區M的相對兩側。除此之外,遮光罩120亦可完全覆蓋出光表面113(如第4圖所示)。因此,遮光罩120可依照明條件而調整覆蓋出光表面113的面積。
In one embodiment, the light-
如第1B、2或3圖所示,燈具110使用遮光罩120之後,可使燈具110前方及/或後方的出光量小於燈具110中央的出光量,因此燈具110中央的亮度最高,以提高路面的照度,此外,燈具110前方及/或後方的亮度較低,可減少光害或避免雜散光直接入射人眼而造成直接眩光。另外,遮光罩120為透光的材質,而非金屬遮光罩或反射性高的材質,因此可避免反射光線,並可避免部分光能反射至燈具110內轉換成熱能後累積在燈具110內而造成高溫,影響燈具110的性能。
As shown in Figures 1B, 2 or 3, after the
在一實施例中,遮光罩120覆蓋出光表面113的面積的比值例如為5%~100%之間,較佳為30%~80%之間,更佳為40%~60%之間,依情況而調整比值。此外,遮光罩120覆蓋出光表面113的第一出光區F的面積與第二出光區R的面積大小可相同或不相同,例如遮光罩120覆蓋出光表面113的第一出光區F的
面積可大於或小於遮光罩120覆蓋出光表面113的第二出光區R的面積,藉以調整照明裝置100的出光光型。
In an embodiment, the ratio of the area of the light-
在照本發明之一實施例中,遮光罩包括一殼體以及一染料。殼體由一透明材質製成,殼體具有相對的一內表面以及一外表面。染料位於殼體內,以使遮光罩的透光度小於一預設值。在一實施例中,殼體122例如是由高分子材料所製成,其包括聚碳酸酯(Polycarbonate,PC)、聚甲基丙烯酸甲酯(poly(methyl methacrylate),PMMA)、矽膠(polymerized siloxanes,俗稱silicone)、聚苯乙烯(Polystyrene,PS)、聚丙烯(Polypropylene,PP)、聚乙烯(polyethylene,PE)及丙烯腈丁二烯苯乙烯(Acrylonitrile Butadine Styrene,ABS)中的至少一種高分子材料。殼體122可回收再利用。殼體122的硬度例如介於洛氏硬度85-95之間。
In an embodiment according to the present invention, the light shield includes a housing and a dye. The shell is made of a transparent material, and the shell has an inner surface and an outer surface opposite to each other. The dye is located in the shell, so that the transmittance of the light shield is less than a preset value. In an embodiment, the
本實施例之遮光罩120於殼體122內添加染料123,使遮光罩120的透光度小於一預設值,例如介於50%至95%之間。也就是說,遮光罩120可藉由添加的染料123阻擋部分光或濾除部分光波段,以使遮光罩120的透光度小於一預定值。遮光罩120的透光度與添加的染料123的濃度呈負相關,當添加的染料123的濃度增加時,遮光罩120的透光度相對減少。在一實施例中,染料123於殼體122內的濃度百分比例如小於等於4%,大於等於0%,但染料123於殼體122內的濃度可依照明條件而調整,不限定小於等於4%。此外,染料123於殼體122內的具有濃度變
化。例如可染料123的濃度可由殼體122的周圍往其中央遞減,使殼體122的透光度由殼體122的周圍往中央依序遞增/遞減,或者可朝一方向(例如上下方向或左右方向)遞增/遞減,也就是說,可使遮光罩120某一區域的透光度較高,以維持高的照度,但使其他區域的透光度較低,以降低光害。
In the
在本發明中染料123可的顏色不限,染料123的成份可為有機化合物,例如是(2-[[5-(2,4-二氯苯基)呋喃-2-基]亞甲基]-5-(4-甲氧基苯基)-7-甲基-3-氧代-5H-[1,3]噻唑並[3,2-a]嘧啶-6-甲酸乙酯),ethyl 2-[[5-(2,4-dichlorophenyl)furan-2-yl]methylidene]-5-(4-methoxyphenyl)-7-methyl-3-oxo-5H-[1,3]thiazolo[3,2-a]pyrimidine-6-carboxylate。
In the present invention, the color of
此外,遮光罩120的外表面S2例如為一平滑表面,以避免污染物附著在遮光罩120的外表面S2。為增加抗污效果,更可形成一奈米塗層126於殼體122的外表面S2(參見第4圖)。奈米塗層126可有效隔離PM2.5等級之油性與非油性粒狀汙染物,達到抗污且外表面S2不易附著污染物的效果。在一實施例中,奈米塗層126可為奈米二氧化鈦-二氧化矽光觸媒薄膜,可有效分解有機物。
In addition, the outer surface S2 of the
遮光罩120除了藉由染料123改變透光度之外,遮光罩120的殼體122的內表面S1例如具有柔光微結構124,可改變出光角度。請參照第4圖,柔光微結構124例如為透鏡陣列,其一體成形於殼體122的內表面S1。此外,在部份實施例中,內表面
S1與前燈罩112的出光表面113相鄰且相隔一間距,可使空氣流通於該間隙中,以促進散熱。在本發明中,間距的寬度較佳係小於遮光罩厚度,以避免外物飛入間隙並殘留其中。
In addition to changing the light transmittance of the
請參照第5圖,光線L1通過柔光微結構124之後改變出光角度,以使光線L1朝不同的方向前進並成為發散光L2,因此在第4圖中發光元件114的光線L於X軸方向上的出光角度變大且均勻出光,以提高均一性。
Please refer to Fig. 5, after the light L1 passes through the soft
請參照第5及6圖,在一實施例中,柔光微結構124例如包括多個柱狀透鏡125,其長度沿著內表面S1延伸,柱狀透鏡125於燈具110的短軸方向(即Y軸方向)上呈長條狀,並於燈具110的長軸方向(即X軸方向)上平行排列。請參照第7圖,在另一實施例中,柔光微結構124例如包括多個半圓形透鏡127,其排列於殼體122的內表面S1,以達到霧化或均勻化出光的效果。
Referring to FIGS. 5 and 6, in an embodiment, the soft
綜上所述,雖然本發明已以實施例揭露如上,然其並非用以限定本發明。本發明所屬技術領域中具有通常知識者,在不脫離本發明之精神和範圍內,當可作各種之更動與潤飾。因此,本發明之保護範圍當視後附之申請專利範圍所界定者為準。 In summary, although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Those who have ordinary knowledge in the technical field to which the present invention belongs can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be subject to those defined by the attached patent application scope.
100:照明裝置 100: lighting device
110:燈具 110: lamps
111:周圍 111: around
112:前燈罩 112: Front lamp shade
113:出光表面 113: Glossy surface
114:發光元件 114: light-emitting element
120:遮光罩 120: hood
121:遮光罩周圍 121: Around the hood
122:殼體 122: shell
123:染料 123: Dye
F:第一出光區 F: The first light-emitting area
R:第二出光區 R: second light zone
M:中央出光區 M: Central light emitting area
S1:內表面 S1: inner surface
S2:外表面 S2: outer surface
Claims (12)
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201506298A (en) * | 2013-05-31 | 2015-02-16 | 3M Innovative Properties Co | Luminaire for crosswalk |
TW201520479A (en) * | 2013-11-29 | 2015-06-01 | Hatsushiba Tech Co Ltd | A cover which can filter energy from particular wavelength of light |
TWM521880U (en) * | 2015-10-22 | 2016-05-21 | Shu-Bin Wang | Color-topping, color-changing and color-mixing structure for light bulb, light tube and lamp device |
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2018
- 2018-09-17 TW TW107132624A patent/TWI713895B/en active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW201506298A (en) * | 2013-05-31 | 2015-02-16 | 3M Innovative Properties Co | Luminaire for crosswalk |
TW201520479A (en) * | 2013-11-29 | 2015-06-01 | Hatsushiba Tech Co Ltd | A cover which can filter energy from particular wavelength of light |
TWM521880U (en) * | 2015-10-22 | 2016-05-21 | Shu-Bin Wang | Color-topping, color-changing and color-mixing structure for light bulb, light tube and lamp device |
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