发明名称 |
A camera flash, a camera, and a method of generating a flash |
摘要 |
<p>A camera flash comprises a light guide (9) arranged to extract light at least through one surface; and one or more light sources (8) arranged, in use, to emit light into the lightguide. Each light source is an LED or a laser diode. The camera flash is connectable, in use, to drive circuitry, the drive circuitry being for driving the light source(s) (8) to emit a pulse of light. The waveguide spreads out the light from the light source(s), so that a flash of light from the camera flash does not present a safety risk, while minimising loss of the light from the light source(s). The camera flash can thus provide a high overall optical output, spread over an extended area (as defined by the waveguide). The lightguide may for example be disposed around a camera module (19) of a mobile telephone camera.</p> |
申请公布号 |
EP2343594(A2) |
申请公布日期 |
2011.07.13 |
申请号 |
EP20100192104 |
申请日期 |
2010.11.22 |
申请人 |
SHARP KABUSHIKI KAISHA |
发明人 |
MATHER, JONATHAN;KAY, ANDREW;MONTHGOMERY, DAVID JAMES;SUCKLING, JAMES ROWLAND;WALTON, EMMA JAYNE;KANAZAWA, YASUNORI;WATANABE, YOKIO;ODA, HIROFUMI;SUGITA, TARO |
分类号 |
G03B15/05;F21V5/00;G02B6/00;H04N5/225 |
主分类号 |
G03B15/05 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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