Twisted kaleido
    3.
    发明授权

    公开(公告)号:US10162268B2

    公开(公告)日:2018-12-25

    申请号:US15656054

    申请日:2017-07-21

    Abstract: Implementations disclosed herein generally relate to a light pipe, or kaleido, for homogenizing light such that the light is uniform once the light exits the light pipe. By reflecting the light inside the light pipe, light uniformity is increased. In one implementation, a light pipe for an image projection apparatus is provided. The light pipe comprises an elongated rectangular body having a refractive index that provides total internal reflection within the elongated rectangular body. The elongated rectangular body has an input face for accepting light into the elongated rectangular body. The input face disposed substantially orthogonal to a longitudinal axis of the elongated rectangular body. The elongated rectangular body has an output face for releasing light from the elongated rectangular body. The output face is disposed substantially orthogonal to the longitudinal axis. The elongated rectangular body has a twist along the longitudinal axis.

    Digital photolithography using compact eye module layout

    公开(公告)号:US10409172B2

    公开(公告)日:2019-09-10

    申请号:US15412530

    申请日:2017-01-23

    Abstract: Embodiments of the present disclosure generally relate to apparatuses and systems for performing photolithography processes. More particularly, compact apparatuses for projecting an image onto a substrate are provided. In one embodiment, an image projection apparatus includes a light pipe coupled to a first mounting plate, and a frustrated prism assembly, one or more digital micro-mirror devices, one or more beamsplitters, and one or more projection optics, which are coupled to a second mounting plate. The first and second mounting plates are coplanar, such that the image projection apparatus is compact and may be aligned in a system having a plurality of image projection apparatuses, each of which is easily removable and replaceable.

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