Light guide for a communication unit
IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0688128
(2000-10-16)
|
우선권정보 |
GB-19990024736 (1999-10-19) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Nokia Mobile Phones Limited
|
대리인 / 주소 |
Antonelli, Terry, Stout & Kraus, LLP
|
인용정보 |
피인용 횟수 :
8 인용 특허 :
10 |
초록
▼
A communication unit including a light guide for illuminating a display including a substantially transparent plate-formed element with reception means for receiving light from light sources and for guiding the light into the transparent plate-formed element of the light guide. The reception means i
A communication unit including a light guide for illuminating a display including a substantially transparent plate-formed element with reception means for receiving light from light sources and for guiding the light into the transparent plate-formed element of the light guide. The reception means includes light in-coupling surfaces each facing towards a light source and being substantially parallel with a main surface of the light guide. The reception means includes a lens and a diffuser, for dispersing the light substantially parallel with the main surface of the light guide to illuminate the display. The light guide also has means for illuminating a keyboard. The means to illuminate the keyboard includes keyholes through the light guide, the keyholes having chamfered surfaces for reflecting the light in the light guide perpendicular to the surface of the light guide onto the keyboard. The light guide also incorporates a dome sheet having a reflector sheet attached to one side of the light guide and a keyboard flexibly attached to another side of the light guide.
대표청구항
▼
A communication unit including a light guide for illuminating a display including a substantially transparent plate-formed element with reception means for receiving light from light sources and for guiding the light into the transparent plate-formed element of the light guide. The reception means i
A communication unit including a light guide for illuminating a display including a substantially transparent plate-formed element with reception means for receiving light from light sources and for guiding the light into the transparent plate-formed element of the light guide. The reception means includes light in-coupling surfaces each facing towards a light source and being substantially parallel with a main surface of the light guide. The reception means includes a lens and a diffuser, for dispersing the light substantially parallel with the main surface of the light guide to illuminate the display. The light guide also has means for illuminating a keyboard. The means to illuminate the keyboard includes keyholes through the light guide, the keyholes having chamfered surfaces for reflecting the light in the light guide perpendicular to the surface of the light guide onto the keyboard. The light guide also incorporates a dome sheet having a reflector sheet attached to one side of the light guide and a keyboard flexibly attached to another side of the light guide. [US_PATENT]US-1036000, 19120800, Pease, 362/139; US-5428484, 19950600, Baker, 359/872; US-5458486, 19951000, Ballard, 433/030; US-D379656, 19970600, Reynolds, D24/139; US-5654824, 19970800, Tarr et al., 359/507; US-5906487, 19990500, Carr, 433/030; US-6068379, 20000500, Kempf, 359/838; US-6069340, 20000500, DeCanio, 219/124.34; US-6210009, 20010400, Daly, 359/882; US-6302550, 20011000, Krieg, 359/879
이 특허에 인용된 특허 (10)
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Rudisill Charles A., Backlit keypad assembly.
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Thornton Curtis Wayne, Direct keypad backlighting.
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Kouno Fumio (Nagano-ken JPX) Nakano Sadao (Nagano-ken JPX), Illuminable push button switching unit.
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Pasco Ian K. (Slough GB2), Light guide.
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Guzik Andrzej T. (Pompano Beach FL) Curtis James H. (Coral Springs FL) Habbaba Faris S. (Boca Raton FL) Shah Kirit (Coral Springs FL), Light guide for LCD.
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Jonsson Anders ; Wictor Mats,SEX, Light guide for a display or keyboard.
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Kuzma Vineeta (Carmel IN), Light guide for a telephone dial.
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Kuhfus Gerd (London CAX), Lighted telephone dial.
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Phillips John Charles, Method and apparatus for providing backlighting for keypads and LCD panels.
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Kenmochi Yoshio (Ichihara JPX), Uniform illumination plate.
이 특허를 인용한 특허 (8)
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Shipman, Michael; Duckworth, David G., Cavity filled lightpipe for illuminating keys of a keyboard.
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Östergård, Toni; Salminen, Seppo; Nousiainen, Jaakko, Double-sided keyboard for use in an electronic device.
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?sterg{dot over (a)}rd,Toni; Salminen,Seppo; Nousiainen,Jaakko, Double-sided keyboard for use in an electronic device.
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Lin,Min Xian; Huang,Chen Hua, Keypad device.
-
Chang, Yi-Hui, Light emitting diode array illuminant and backlight module by using the same.
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Chang,Chia Huang; Hsu,Ming Fu, Light guide element and backlight module using the same.
-
Jeon,Hwan Jun, Mobile terminal having a heat releasing member.
-
Kitamura, Hiromu; Saito, Shuichi, Portable telephone, diffuser and lighting device provided therein.
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