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    • 4. 发明授权
    • Narrow-band, air-cooled light fixture
    • 窄带,风冷灯具
    • US4321659A
    • 1982-03-23
    • US164721
    • 1980-06-30
    • Ernest E. Wheeler
    • Ernest E. Wheeler
    • F21V9/00F21V29/02
    • F21V29/673F21V29/02F21V9/00F21V9/08G02F1/133308
    • A simple, light-weight air-cooled filter arrangement for a narrow band pass filtered light fixture. In lighting fixtures such as infrared energy sources or stage lighting, it is necessary to filter a conventional broad spectrum energy source so that only energy in the desired region is transmitted. These filters which absorb energy in bands other than that being transmitted tend to become very hot. A light fixture is provided having a plurality of spaced filters near a light output end. Each filter has one or more openings offset from the openings in other filters so that no single straight path passes through openings in all filters. A light source is provided adjacent to the filter pack, with a fan positioned on the side of the source opposite the filter pack, with openings in the fixture housing beyond the fan. In operation, the filter pack absorbs energy in all spectral regions other than the band which the pack was designed to pass. The fan draws air in through the filter pack, past the light source and ejects it out through the openings. This fixture is simple, light-weight and cool in operation.
    • 一种简单,重量轻的风冷过滤器装置,用于窄带通过过滤灯具。 在诸如红外能源或舞台照明的照明设备中,必须对传统的广谱能量源进行滤波,以便仅传输期望区域中的能量。 这些吸收能量以外的频带的滤波器倾向于变得非常热。 在灯光输出端附近设置有多个间隔开的滤光器。 每个过滤器具有一个或多个开口偏离其他过滤器中的开口,使得没有单个直线路径穿过所有过滤器中的开口。 在过滤器组件附近提供光源,其中风扇位于与过滤器组件相对的源的侧面上,其中固定器壳体中的开口超出风扇。 在操作中,过滤包吸收除了包装被设计通过的带以外的所有光谱区域中的能量。 风扇通过过滤器吸入空气,通过光源并将其从开口排出。 该灯具简单,重量轻,操作方便。