Illumination obscurement device
    3.
    发明申请

    公开(公告)号:US20030185010A1

    公开(公告)日:2003-10-02

    申请号:US10400045

    申请日:2003-03-25

    CPC classification number: F21V11/10 F21V11/08 F21W2131/406 Y10S359/90

    Abstract: An illumination obscurement device for controlling the obscurement of illumination from a light source which is optimized for use with a rectangular, arrayed, selective reflection device. In a preferred embodiment, a rotatable shutter with three positions is placed between a light source and a DMD. The first position of the shutter is a mask, preferably an out of focus circle. This out of focus circle creates a circular mask and changes any unwanted dim reflection to a circular shape. The second position of the shutter is completely open, allowing substantially all the light to pass. The third position of the shutter is completely closed, blocking substantially all the light from passing. By controlling the penumbra illumination surrounding the desired illumination, DMDs can be used in illumination devices without creating undesirable rectangular penumbras.

    Belt looping
    6.
    发明申请
    Belt looping 有权
    皮带循环

    公开(公告)号:US20040053720A1

    公开(公告)日:2004-03-18

    申请号:US10620842

    申请日:2003-07-15

    Inventor: Nigel Evans

    CPC classification number: F21S10/007 F16H7/02 F21V29/505 F21W2131/406

    Abstract: A high output light source, such as a stage lighting luminaire, produces light along a path. The belt which drives a driven device is kept away from that path by passing it around the opposite side of the pulley.

    Abstract translation: 诸如舞台照明灯具的高输出光源沿着路径产生光。 驱动被驱动装置的皮带通过将其绕过滑轮的相对侧而远离该路径。

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