发明授权
- 专利标题： Illumination apparatus comprising a light guide plate divided by wedge-shaped grooves having an apex angle of 15 degrees or less and a ratio of depth to thickness in a range of 0.4 to 0.7
- 专利标题（中）： 照明装置包括：由顶角为15度以下的楔形槽和深度与厚度的比值在0.4〜0.7的范围内的导光板
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申请号： US11771591申请日： 2007-06-29
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公开(公告)号： US07764334B2公开(公告)日： 2010-07-27
- 发明人: Toshitake Kitagawa , Naotada Okada
- 申请人： Toshitake Kitagawa , Naotada Okada
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2006-181238 20060630; JP2007-167434 20070626
- 主分类号： G02F1/1335
- IPC分类号： G02F1/1335 ; F21V7/04 ; G09F13/08
摘要：
An illumination apparatus includes: a light guide plate composed of a plurality of aligned blocks; and a plurality of light sources, each being provided for one of the blocks and emitting light to the one block. A gap of 0.1 microns or more is formed in at least part of a region between the adjacent blocks. An inside of the gap serves as an air layer.
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