发明授权
- 专利标题: Converging element and illuminating device
- 专利标题(中): 会聚元件和照明装置
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申请号: US11368483申请日: 2006-03-07
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公开(公告)号: US07597459B2公开(公告)日: 2009-10-06
- 发明人: Makoto Maeda , Takashi Ikeda , Yoshitaka Kurosaka
- 申请人: Makoto Maeda , Takashi Ikeda , Yoshitaka Kurosaka
- 申请人地址: JP Osaka
- 专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人: Sanyo Electric Co., Ltd.
- 当前专利权人地址: JP Osaka
- 代理机构: NDQ&M Watchstone LLP
- 优先权: JP2005-062138 20050307; JP2005-072908 20050315; JP2005-252818 20050831
- 主分类号: F21V3/02
- IPC分类号: F21V3/02
摘要:
An LED light source is formed of an LED and an angle control lens. The angle control lens includes a transparent member in a shape of a rotational symmetry, and includes a center convex curved surface area (light-emission area) A1, a peripheral curved surface area (light-emission area) B1, a peripheral curved surface reflection area C1, a center concave curved surface area (light-incidence area) D, and a convex curved surface area E formed between the areas A1, B1. The convex curved surface area E is formed in a position for receiving direct incoming light from the LED (direct incoming light deviated from the center portion), and is optically constructed to anteriorly emit this received light (in a direction intended to be emitted as a result of a light-emission angle being controlled).
公开/授权文献
- US20060196944A1 Converging element and illuminating device 公开/授权日:2006-09-07
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