DYNAMIC HEAT SINK FOR LIGHT EMITTING DIODES
    71.
    发明申请
    DYNAMIC HEAT SINK FOR LIGHT EMITTING DIODES 审中-公开
    用于发光二极管的动态散热片

    公开(公告)号:WO2007056706A2

    公开(公告)日:2007-05-18

    申请号:PCT/US2006/060552

    申请日:2006-11-05

    Abstract: A magnetic holder for letters appearing on a wall sign. A typical application would be for signs requiring halo glow lighting. With such a sign, the letter itself is unlit, and the wall is lit by soft lighting from behind the letter. Lighting could be accomplished with the use of a plurality of light emitting diodes (LED). The Present Invention comprises a mounting plate that is securely attached to the wall. The LED's, lighting circuitry, and magnets are securely fastened to the mounting plate. The letter is a hollow magnetic channel letter that is slightly larger than the mounting plate. The letter is positioned over the mounting plate, and is held in position by the magnets. The letter may be manually positioned on the plate for proper alignment.

    Abstract translation: 壁挂牌上出现字母的磁座。 一个典型的应用是要求光晕发光照明的标志。 有了这样一个标志,这封信本身就不亮了,墙上照亮了信背后的柔和的光线。 照明可以通过使用多个发光二极管(LED)来实现。 本发明包括牢固地附接到壁的安装板。 LED,照明电路和磁铁牢固地固定在安装板上。 该字母是比安装板略大的中空磁通道字母。 该字母定位在安装板上方,并由磁铁保持在适当的位置。 该字母可以手动定位在板上以便正确对准。

    APPARATUS AND METHOD FOR TREATMENT OF SKIN CONDITIONS USING LIGHT
    76.
    发明申请
    APPARATUS AND METHOD FOR TREATMENT OF SKIN CONDITIONS USING LIGHT 审中-公开
    用光处理皮肤病症的装置和方法

    公开(公告)号:WO2004064923A1

    公开(公告)日:2004-08-05

    申请号:PCT/GB2004/000285

    申请日:2004-01-23

    Abstract: A method and apparatus for improving the cosmetic appearance of a region of skin (11) affected by Acne Vulgaris, Rosacea or similar skin condition by means of directing light radiation (12) from an illuminating device (1) on to the skin (11). The apparatus (10) comprises a control unit (9) that operates one or more LEDs (7) (light emitting diodes) of the illuminating device (1). Each dose of light radiation (12) lasts for at least 100ms, during which time the skin 11 receives light energy from the LED(s) (7), which causes a photochemical reaction that stimulates the production of free radicals (singlet oxygen) that react with, and at least partially disable or destroy, bacteria that contribute to the symptoms of the skin condition. The light energy directed on to the skin (11) during any given period of 10µs is less than 0.5 Jcm 2 , and during any given period of 100ms is less than 5 Jcm -2 . Substantially no beneficial photo-thermal reaction occurs within the skin (11). Light having wavelengths around 405nm and/or 585nm is used. The duration of a single dose may be much longer than 100ms and can last up to 10 hours (for overnight treatment).

    Abstract translation: 一种用于通过将照射装置(1)的光辐射(12)引导到皮肤(11)上来改善受痤疮,红斑痤疮或类似皮肤状况影响的皮肤区域(11)的化妆品外观的方法和装置, 。 装置(10)包括操作照明装置(1)的一个或多个LED(7)(发光二极管)的控制单元(9)。 每个剂量的光辐射(12)持续至少100ms,在此期间皮肤11接收来自LED(7)的光能,其引起刺激自由基(单线态氧)产生的光化学反应, 与有助于皮肤病症状的细菌发生反应,并至少部分禁用或破坏细菌。 在10μs的任何给定时间内,指向皮肤(11)的光能小于0.5Jcm 2,在100ms的任何给定期间小于5Jcm -2。 在皮肤中基本上没有有益的光热反应(11)。 使用波长约405nm和/或585nm的光。 单剂量的持续时间可能比100ms长得多,可持续长达10小时(用于隔夜治疗)。

    COOLED LIGHT EMITTING APPARATUS
    77.
    发明申请
    COOLED LIGHT EMITTING APPARATUS 审中-公开
    冷却发光装置

    公开(公告)号:WO2003081127A2

    公开(公告)日:2003-10-02

    申请号:PCT/GB2003/001271

    申请日:2003-03-25

    Abstract: A cooled light emitting apparatus 1 comprises a light source including a close packed array 2 of light emitting diode devices (high intensity LEDs) and a cooling system for cooling the light source. The cooling system comprises a thermoelectric cooling device in the form of a Peltier device 4 connected via a heat spreader 3 to the light source and a heat exchange system 5, 6 for removing heat from the Peltier device 4. The heat exchange system 5,6 uses liquid coolant (or refrigerant) to cool the Peltier device 4. By extracting heat from the LED array 2 at a rate greater than 5W cm -2 it is possible to maintain the LED array at a temperature of less than -10 degrees Celsius, and thus emit light having an optical power density of greater than 1Wcm -2 .

    Abstract translation: 冷却发光装置1包括光源,其包括发光二极管装置(高强度LED)的紧密堆积阵列2和用于冷却光源的冷却系统。 冷却系统包括通过散热器3连接到光源的珀耳帖装置4形式的热电冷却装置和用于从珀耳帖装置4去除热量的热交换系统5,6。热交换系统5,6 使用液体冷却剂(或制冷剂)来冷却珀耳帖装置4.通过以大于5W cm -2的速率从LED阵列2提取热量,可以将LED阵列保持在小于-10度的温度 摄氏度,因此发光的光功率密度大于1Wcm -2。

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