WO2009018678A1 - Plaque guide d'ondes - Google Patents

Plaque guide d'ondes Download PDF

Info

Publication number
WO2009018678A1
WO2009018678A1 PCT/CN2007/002353 CN2007002353W WO2009018678A1 WO 2009018678 A1 WO2009018678 A1 WO 2009018678A1 CN 2007002353 W CN2007002353 W CN 2007002353W WO 2009018678 A1 WO2009018678 A1 WO 2009018678A1
Authority
WO
WIPO (PCT)
Prior art keywords
light guide
guide plate
light
light source
plastic plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2007/002353
Other languages
English (en)
Chinese (zh)
Inventor
Frank Yeh
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Memtech Electronic Products Co Ltd
Memtech International Ltd
Original Assignee
Dongguan Memtech Electronic Products Co Ltd
Memtech International Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Memtech Electronic Products Co Ltd, Memtech International Ltd filed Critical Dongguan Memtech Electronic Products Co Ltd
Priority to PCT/CN2007/002353 priority Critical patent/WO2009018678A1/fr
Publication of WO2009018678A1 publication Critical patent/WO2009018678A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses

Definitions

  • the invention generally relates to a light guide plate, and more particularly to a light guide plate suitable for use in an electronic/communication key.
  • BACKGROUND OF THE INVENTION For the prior art, please refer to Chinese Patent Application No. 20051 0036410.
  • a button light guide plate having a small number of LEDs and reducing power consumption and ensuring brightness and uniformity of light emission of a button is provided by a light-emitting surface and a light-emitting surface is formed, and a plurality of holes corresponding to the buttons are respectively disposed on the board, and an elongated groove for accommodating the light source is disposed on the light-incident surface, and the elongated groove has a protrusion structure of the back light guide plate; wherein Knowledge technology is mainly through the light Therefore, the long-groove structure of the light guide plate in the prior art can only receive the scattered light on one side of the light source, and the scattered light on the other side cannot be fully utilized. Moreover, the long groove must also be oriented by it.
  • the protruding structure provided on the side of the light source assists the light guiding, so that the structure is limited, and the process is complicated, which is not conducive to production processing.
  • SUMMARY OF THE INVENTION The present invention is directed to the absence of the above-described prior art, and a primary object is to provide a light guide plate that better enhances overall brightness and uniformity by increasing the light guiding area and making full use of light source scattering.
  • a light guide plate includes a plastic plate with high light transmittance, and a plastic hole for accommodating the light source is disposed on the plastic plate.
  • FIG. 1 is a view (1) of a light guide plate of the present invention
  • Figure 2 is a view (2) of the light guide plate of the present invention.
  • FIG. 1 is a first embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has an irregular polygonal structure.
  • FIG. 2 is a second embodiment of a light guide plate according to the present invention. It can be clearly seen from the figure that a light guide plate includes a high transmittance plastic plate 1 , and a light source is disposed on the plastic plate 1 . 2 The accommodating hole 11 is accommodated, and the accommodating hole 11 has a regular hexagonal structure.
  • the receiving holes 11 are arranged in the light source 2, whether they are regular or irregular, so that the scattered light on both sides of the light source 2 can be transmitted to the plastic plate 1 along the inner wall of the shrinking hole 11, and further It can make full use of the scattered light on both sides of the light source, and also increase its light guiding area, thus better improving the overall brightness and uniformity.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

L'invention porte sur une plaque guide d'ondes (1) de plastique à fort rendement de transmission de lumière et percée d'un trou (11) de réception de la source de lumière. Cette structure à trou (11) de réception remplace celle à sillons rectangulaires à saillies de la technique actuelle. Ladite plaque peut facilement s'appliquer aux côtés d'une source de lumière pour favoriser la dispersion, et de plus, améliorer le rendement du guide d'ondes en accroissant largement la luminosité totale et la symétrie.
PCT/CN2007/002353 2007-08-06 2007-08-06 Plaque guide d'ondes Ceased WO2009018678A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/002353 WO2009018678A1 (fr) 2007-08-06 2007-08-06 Plaque guide d'ondes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2007/002353 WO2009018678A1 (fr) 2007-08-06 2007-08-06 Plaque guide d'ondes

Publications (1)

Publication Number Publication Date
WO2009018678A1 true WO2009018678A1 (fr) 2009-02-12

Family

ID=40340923

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2007/002353 Ceased WO2009018678A1 (fr) 2007-08-06 2007-08-06 Plaque guide d'ondes

Country Status (1)

Country Link
WO (1) WO2009018678A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155619C1 (de) * 2001-11-13 2003-03-27 Wintek Corp Lichtleiterplatte zum Beleuchten eines Tastenfeldes
JP2005268165A (ja) * 2004-03-22 2005-09-29 Citizen Electronics Co Ltd 照光式キースイッチ
CN1909569A (zh) * 2005-08-05 2007-02-07 鸿富锦精密工业（深圳）有限公司 按键导光板
CN1932556A (zh) * 2005-09-16 2007-03-21 鸿富锦精密工业（深圳）有限公司 导光板及使用所述导光板的电子产品

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10155619C1 (de) * 2001-11-13 2003-03-27 Wintek Corp Lichtleiterplatte zum Beleuchten eines Tastenfeldes
JP2005268165A (ja) * 2004-03-22 2005-09-29 Citizen Electronics Co Ltd 照光式キースイッチ
CN1909569A (zh) * 2005-08-05 2007-02-07 鸿富锦精密工业（深圳）有限公司 按键导光板
CN1932556A (zh) * 2005-09-16 2007-03-21 鸿富锦精密工业（深圳）有限公司 导光板及使用所述导光板的电子产品

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