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HYBRID LIGHT BULBS USING COMBINATIONS OF REMOTE PHOSPHOR LEDS AND DIRECT EMITTING LEDS

机译:结合使用远程磷光LED和直接发光LED的混合灯泡

摘要

A light source suitable for general lighting applications combines at least one remote phosphor LED and at least one direct emitting LED in a single unit. Both the remote phosphor LED and the direct emitting LED are carried by a base and covered by a bulb or other suitable cover member, which may be light-diffusing. The remote phosphor LED includes a first LED, a phosphor layer, and a first dichroic reflector. Excitation light from the first LED is reflected by the first dichroic reflector onto the phosphor layer to generate phosphor light, which is substantially transmitted by the first dichroic reflector. At least some light from the direct emitting LED propagates to the cover member without passing through any dichroic reflector, including the first dichroic reflector. The light source may provide white light output using relatively small amounts of phosphor material.
机译:适用于一般照明应用的光源在单个单元中组合了至少一个远程磷光体LED和至少一个直接发光LED。远程磷光体LED和直射LED均由基座承载并且由灯泡或其他合适的覆盖构件覆盖,该覆盖构件可以是光扩散的。远程磷光体LED包括第一LED,磷光体层和第一二向色反射器。来自第一LED的激发光被第一二向色反射器反射到磷光体层上以产生磷光,该磷光基本上被第一二向色反射器透射。来自直接发射LED的至少一些光在不通过任何二向色反射器(包括第一二向色反射器)的情况下传播至盖构件。光源可以使用相对少量的磷光体材料来提供白光输出。

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