TWI510735B - Light-emitting diode lamp - Google Patents
Light-emitting diode lamp Download PDFInfo
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- TWI510735B TWI510735B TW102132395A TW102132395A TWI510735B TW I510735 B TWI510735 B TW I510735B TW 102132395 A TW102132395 A TW 102132395A TW 102132395 A TW102132395 A TW 102132395A TW I510735 B TWI510735 B TW I510735B
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Description
本發明是有關於一種燈管,且特別是有關於一種發光二極體燈管。The present invention relates to a lamp, and more particularly to a light-emitting diode lamp.
一般燈管中,需要驅動電路(例如是一電路板)連接燈條,使燈管得以發光。驅動電路係位於燈管兩側之端蓋中,燈條則位於中央的透光管體中。然而,由於驅動電路的尺寸過長而突出端蓋,常造成透光管體形成暗帶,或者需要用更長的端蓋來蓋住驅動電路,使得燈管的整體透光面積降低。In a general lamp, a driving circuit (for example, a circuit board) is required to connect the light bar to enable the lamp to emit light. The driving circuit is located in the end cover on both sides of the lamp tube, and the light bar is located in the central transparent tube body. However, because the size of the driving circuit is too long to protrude the end cover, the light-transmitting tube body is often formed to form a dark band, or a longer end cover is required to cover the driving circuit, so that the overall light-transmissive area of the lamp tube is reduced.
因此,本發明係提供一種燈管結構,不僅不需要使用更長的端蓋來蓋住驅動電路,同時也可避免透光管體產生暗帶。Accordingly, the present invention provides a lamp tube structure that not only does not require the use of a longer end cap to cover the drive circuit, but also avoids the generation of a dark strip by the light transmissive tube body.
本發明係有關於一種發光二極體燈管,利用一光學元件與發光二極體的配置,可避免在燈管之透光管體中產生暗帶,同時也可縮短燈管之端蓋的長度。The invention relates to a light-emitting diode lamp tube, which utilizes an optical component and a light-emitting diode arrangement to avoid dark bands in the light-transmissive tube body of the lamp tube, and also shorten the end cover of the lamp tube. length.
根據本發明,提出一種發光二極體燈管,包括一透光管體、一燈條、一第一端蓋與一第二端蓋、一驅動電路以及一 光學元件。透光管體具有一第一端與一第二端。燈條位於透光管體內,其中燈條上具有多數個發光二極體。第一端蓋與第二端蓋,分別套蓋於透光管體之第一端與第二端上。驅動電路收納於第一端蓋內,並與燈條上之發光二極體電性連接。光學元件設置於第一端蓋與透光管體之第一端鄰接處之管體內,用以遮蔽突出於第一端蓋之驅動電路,並藉由改變發光二極體照射在光學元件上之出射光的路徑方向,照亮突出於第一端蓋之驅動電路所造成的暗帶。According to the present invention, a light-emitting diode lamp tube includes a light-transmitting tube body, a light bar, a first end cover and a second end cover, a driving circuit, and a Optical element. The light transmissive tube body has a first end and a second end. The light bar is located in the light-transmitting tube body, wherein the light bar has a plurality of light-emitting diodes. The first end cover and the second end cover are respectively sleeved on the first end and the second end of the light transmitting tube body. The driving circuit is received in the first end cover and electrically connected to the light emitting diode on the light bar. The optical component is disposed in the tube body adjacent to the first end of the first end cover and the first end of the light transmissive tube body for shielding the driving circuit protruding from the first end cap, and is irradiated on the optical component by changing the light emitting diode The direction of the path of the outgoing light illuminates the dark band caused by the drive circuit of the first end cap.
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,作詳細說明如下:In order to provide a better understanding of the above and other aspects of the present invention, the following detailed description of the embodiments and the accompanying drawings
100‧‧‧發光二極體燈管100‧‧‧Lighting diode lamp
10‧‧‧透光管體10‧‧‧Light pipe body
101‧‧‧第一端101‧‧‧ first end
102‧‧‧第二端102‧‧‧ second end
20‧‧‧燈條20‧‧‧Light strips
200‧‧‧發光二極體晶片200‧‧‧Light Diode Wafer
201、202‧‧‧發光二極體201, 202‧‧‧Lighting diode
208‧‧‧透明封裝體208‧‧‧Transparent package
209‧‧‧透光透鏡209‧‧‧Light-transmitting lens
2011、2012、2013、2014‧‧‧發光二極體封裝體2011, 2012, 2013, 2014‧‧‧Light Emitting Diodes
30‧‧‧第一端蓋30‧‧‧First end cap
40‧‧‧第二端蓋40‧‧‧Second end cap
50‧‧‧驅動電路50‧‧‧ drive circuit
60‧‧‧光學元件60‧‧‧Optical components
601‧‧‧入光面601‧‧‧Into the glossy surface
602‧‧‧容置空間602‧‧‧ accommodating space
L1、L2‧‧‧發射路徑L1, L2‧‧‧ launch path
x、y、z‧‧‧座標軸X, y, z‧‧‧ coordinate axis
第1圖繪示本發明實施例之發光二極體燈管的立體圖。FIG. 1 is a perspective view of a light-emitting diode lamp according to an embodiment of the invention.
第2圖繪示第1圖之發光二極體的部分放大示意圖FIG. 2 is a partially enlarged schematic view showing the light emitting diode of FIG. 1
第3圖繪示本發明實施例之發光二極體燈管在xz平面的部分剖視圖。3 is a partial cross-sectional view of the light-emitting diode lamp of the embodiment of the present invention in the xz plane.
第4A、4B圖繪示本發明另一實施例之發光二極體封裝體的示意圖。4A and 4B are schematic views showing a light emitting diode package according to another embodiment of the present invention.
第1圖繪示本發明實施例之發光二極體燈管100的立體圖。第2圖繪示第1圖之發光二極體燈管100的部分放大示意圖。如第1、2圖所示,發光二極體燈管100包括一透光管體10、一燈條20、一第一端蓋30 與一第二端蓋40、一驅動電路50以及一光學元件60。透光管體10具有一第一端101與一第二端102。燈條20位於透光管體10內,且燈條20上具有多數個發光二極體201與至少一個發光二極體202。第一端蓋30與第二端蓋40分別套蓋於透光管體10之第一端101與第二端102上。驅動電路50收納於第一端蓋30內,並與燈條20上之發光二極體201電性連接。光學元件60設置於第一端蓋30與透光管體10之第一端101鄰接處之管體內,用以遮蔽突出於第一端蓋30之驅動電路50,至少一個發光二極體202發射一出射光至光學元件60上,出射光的路徑方向經由光學元件60改變以照亮突出於第一端蓋30之驅動電路50所造成的暗帶。FIG. 1 is a perspective view of a light-emitting diode lamp 100 according to an embodiment of the present invention. FIG. 2 is a partially enlarged schematic view showing the light-emitting diode lamp 100 of FIG. 1. As shown in the first and second figures, the LED lamp 100 includes a light-transmissive tube body 10, a light bar 20, and a first end cover 30. And a second end cap 40, a driving circuit 50 and an optical component 60. The light transmissive tube body 10 has a first end 101 and a second end 102. The light bar 20 is located in the light-transmissive tube body 10, and the light bar 20 has a plurality of light-emitting diodes 201 and at least one light-emitting diode 202. The first end cover 30 and the second end cover 40 are respectively sleeved on the first end 101 and the second end 102 of the transparent tube body 10. The driving circuit 50 is housed in the first end cover 30 and electrically connected to the LED 201 on the light bar 20. The optical component 60 is disposed in the tube body of the first end cap 30 adjacent to the first end 101 of the light transmissive tube body 10 for shielding the driving circuit 50 protruding from the first end cap 30, and the at least one LED body 202 is emitted. Upon exiting the optical element 60, the path direction of the exiting light is changed via the optical element 60 to illuminate the dark band caused by the drive circuit 50 that protrudes from the first end cap 30.
在本實施例中,發光二極體201與發光二極體202之出光面(在第1、2圖中以斜線標示)不同。舉例來說,發光二極體201之出光面係垂直於z方向,而發光二極體202之出光面係垂直於x方向。第3圖繪示本發明實施例之發光二極體燈管100在xz平面的部分剖視圖。發光二極體201與發光二極體202可為發光二極體晶片或具有發光二極體之封裝體。In the present embodiment, the light-emitting diode 201 is different from the light-emitting surface of the light-emitting diode 202 (indicated by oblique lines in FIGS. 1 and 2). For example, the light exiting surface of the light emitting diode 201 is perpendicular to the z direction, and the light emitting surface of the light emitting diode 202 is perpendicular to the x direction. FIG. 3 is a partial cross-sectional view of the LED lamp 100 of the embodiment of the present invention in the xz plane. The light emitting diode 201 and the light emitting diode 202 may be a light emitting diode wafer or a package having a light emitting diode.
如第3圖所示,在一實施例中,發光二極體201可包括多數個正向發光型發光二極體(top view LED)封裝體2011,發光二極體202可包括至少一個側向發光型發光二極體(side view LED)封裝體2012。發光二極體202(或側向發光型發光二極體封裝體2012)位於燈條20的端部,接近第一端101並與光學元件60相鄰。As shown in FIG. 3, in an embodiment, the light emitting diode 201 may include a plurality of front view LED packages 2011, and the light emitting diodes 202 may include at least one lateral direction. A light-emitting diode (side view LED) package 2012. The light emitting diode 202 (or the lateral light emitting diode package 2012) is located at the end of the light bar 20, adjacent to the first end 101 and adjacent to the optical element 60.
光學元件60可為一反射片或一導光結構。同時參照第1、2圖,在一實施例中,光學元件60為一反射片。反射片係傾斜地設置於第一端蓋30與透光管體40之第一端101鄰接處之管體內,且朝向發光二極體。 突出於第一端蓋30之驅動電路50可被反射片之垂直投影所遮蔽。Optical element 60 can be a reflective sheet or a light directing structure. Referring also to Figures 1 and 2, in one embodiment, optical component 60 is a reflective sheet. The reflective sheet is disposed obliquely in the body of the first end cap 30 adjacent to the first end 101 of the light transmissive tube body 40 and faces the light emitting diode. The drive circuit 50 protruding from the first end cap 30 can be obscured by the vertical projection of the reflective sheet.
反射片可例如是UX-188反射片、具有反光塗漆或以金屬銀等材料製成,具有可將光反射的裝置。The reflective sheet can be, for example, a UX-188 reflective sheet, has a reflective lacquer or is made of a material such as metallic silver, and has means for reflecting light.
在另一實施例中,光學元件60為一導光結構。參照第1~3圖。導光結構具有一入光面601,使得發光二極體之出射光路徑在進入入光面601後被改變。入光面601可為一傾斜表面,且朝向發光二極體。In another embodiment, optical component 60 is a light directing structure. Refer to Figures 1~3. The light guiding structure has a light incident surface 601 such that the outgoing light path of the light emitting diode is changed after entering the light incident surface 601. The light incident surface 601 can be an inclined surface and face the light emitting diode.
如第3圖所示,正向發光型發光二極體封裝體2011之光線發射路徑可如L1所示,側向發光型發光二極體封裝體2012之光線發射路徑可如L2所示。由於側向發光型發光二極體封裝體2012係朝向光學元件60之入光面601射出光線,光線在進入入光面601後被改變,進而出射至透光管體10外。As shown in FIG. 3, the light emission path of the forward light emitting type LED package 2011 can be as shown by L1, and the light emitting path of the side light emitting type LED package 2012 can be as shown by L2. Since the lateral light-emitting diode package 2012 emits light toward the light-incident surface 601 of the optical element 60, the light is changed after entering the light-incident surface 601, and is then emitted to the outside of the light-transmitting tube 10.
此外,發光二極體202也可為不同的發光二極體封裝體。第4A、4B圖繪示本發明另一實施例之發光二極體封裝體2013、2014的示意圖。如第4A圖所示,發光二極體封裝體2013係為發光二極體晶片200受到透明封裝體208所覆蓋,在另一實施例中,透明封裝體208可摻雜螢光粉。如第4B圖所示,發光二極體封裝體2014係為發光二極體晶片200受到透光透鏡209所覆蓋。由於發光二極體封裝體2013、2014之結構,其光線出光角度大,可同時提供側向與正向之光線發射路徑,因此,發光二極體202也可採用此兩種實施方式,設置於燈條20的端部並與光學元件60相鄰。In addition, the LEDs 202 can also be different LED packages. 4A and 4B are schematic views showing the light emitting diode packages 2013 and 2014 according to another embodiment of the present invention. As shown in FIG. 4A, the LED package 2013 is such that the LED package 200 is covered by the transparent package 208. In another embodiment, the transparent package 208 can be doped with phosphor powder. As shown in FIG. 4B, the light-emitting diode package 2014 is such that the light-emitting diode wafer 200 is covered by the light-transmitting lens 209. Due to the structure of the LED package 2013 and 2014, the light exiting angle is large, and the lateral and forward light emission paths can be provided at the same time. Therefore, the LEDs 202 can also be disposed in the two embodiments. The end of the light bar 20 is adjacent to the optical element 60.
在一實施例中,發光二極體201與發光二極體202可全為發光二極體封裝體2013或是全為發光二極體封裝體2014。In one embodiment, the LED 201 and the LED 202 can be all of the LED package 2013 or all of the LED package 2014.
在一實施例中,導光結構更包括一容置空間602,用以容置突出於第一端蓋之驅動電路。由發射路徑L2可看出,側向發光型發光二極體封裝體2012所發出之光線,可照亮突出於第一端蓋30之驅動電路50所造成的暗帶。In an embodiment, the light guiding structure further includes an accommodating space 602 for accommodating the driving circuit protruding from the first end cover. As can be seen from the emission path L2, the light emitted by the lateral illumination type LED package 2012 can illuminate the dark band caused by the drive circuit 50 of the first end cover 30.
由上述實施例可知,本發明之發光二極體利用光學元件60與發光二極體201、發光二極體202的結構配置,可避免在透光管體10中產生暗帶。同時,第一端蓋30與第二端蓋40的長度也可縮短(例如從一般的30~40mm縮短為15mm)。此外,本發明之光學元件60可應用於各種不同形狀之燈管,並不限定於如第1~3圖所繪示之圓形。As can be seen from the above embodiments, the light-emitting diode of the present invention is configured by the optical element 60, the light-emitting diode 201, and the light-emitting diode 202, so that dark bands can be avoided in the light-transmitting tube body 10. At the same time, the length of the first end cap 30 and the second end cap 40 can also be shortened (for example, from a general 30 to 40 mm to 15 mm). Further, the optical element 60 of the present invention can be applied to lamps of various shapes, and is not limited to the circular shape as shown in FIGS. 1 to 3.
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 conclusion, the present invention has been disclosed in the above embodiments, but it is not intended to limit the present invention. A person skilled in the art can make various changes and modifications without departing from the spirit and scope of the invention. Therefore, the scope of the invention is defined by the scope of the appended claims.
30‧‧‧第一端蓋30‧‧‧First end cap
50‧‧‧驅動電路50‧‧‧ drive circuit
60‧‧‧光學元件60‧‧‧Optical components
601‧‧‧入光面601‧‧‧Into the glossy surface
602‧‧‧容置空間602‧‧‧ accommodating space
2011‧‧‧正向發光型發光二極體封裝體2011‧‧‧ Forward Light Emitting Diode Package
2012‧‧‧側向發光型發光二極體封裝體2012‧‧‧Side-emitting LED package
L1、L2‧‧‧發射路徑L1, L2‧‧‧ launch path
x、z‧‧‧座標軸x, z‧‧‧ coordinate axis
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TW102132395A TWI510735B (en) | 2013-09-09 | 2013-09-09 | Light-emitting diode lamp |
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TW102132395A TWI510735B (en) | 2013-09-09 | 2013-09-09 | Light-emitting diode lamp |
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TWI510735B true TWI510735B (en) | 2015-12-01 |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI274211B (en) * | 2005-02-25 | 2007-02-21 | Radiant Opto Electronics Corp | Apparatus with enhanced light intensity for the corner of the light guiding plate in backlight module |
CN201539722U (en) * | 2009-09-22 | 2010-08-04 | 馨意科技股份有限公司 | LED lamp tube with light mixing function |
CN101871599A (en) * | 2009-04-21 | 2010-10-27 | 苏州璨宇光学有限公司 | Backlight module |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI274211B (en) * | 2005-02-25 | 2007-02-21 | Radiant Opto Electronics Corp | Apparatus with enhanced light intensity for the corner of the light guiding plate in backlight module |
CN101871599A (en) * | 2009-04-21 | 2010-10-27 | 苏州璨宇光学有限公司 | Backlight module |
CN201539722U (en) * | 2009-09-22 | 2010-08-04 | 馨意科技股份有限公司 | LED lamp tube with light mixing function |
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