RELAY SYSTEM, PROJECTION SYSTEM, AND PROJECTOR

    公开(公告)号:US20240319484A1

    公开(公告)日:2024-09-26

    申请号:US18609153

    申请日:2024-03-19

    摘要: A relay system brings a beam output from a first image plane into focus at a second image plane. The relay system includes a first lens element, a reflection member, and a second lens element sequentially arranged in the direction in which the beam travels. The first lens element has positive power. The reflection member has a transmissive surface that is a concave surface on which the beam is incident and via which the beam exits, and a reflective surface that is a concave surface that reflects the beam from the transmissive surface. The second lens element has positive power. The beam output from the reflection member passes through the second lens element and is brought into focus at the second image plane.

    OPTICAL COMPONENT AND SYSTEM FOR SIMULTANEOUS 3D HYPERSPECTRAL IMAGING

    公开(公告)号:US20240027265A1

    公开(公告)日:2024-01-25

    申请号:US18224594

    申请日:2023-07-21

    申请人: HI-Spectral, LLC

    IPC分类号: G01J3/02 G02B17/00 G01J3/28

    摘要: A compact structure for snapshot hyperspectral imaging may include an image slicer, an integral field unit, an integral field spectrograph, and multiplexed integral field spectrograph. The image slicer includes a first section having a first plurality of mirrors, each mirror of the first plurality of mirrors having a predetermined tilt in a longitudinal direction, a second section having a second plurality of mirrors, each mirror of the second plurality of mirrors having a predetermined tilt in the longitudinal direction, and a ridge extending laterally between the first section and the second, the first section being at a first angle relative to the ridge and the second section being at a second angle opposite to the first angle relative to the ridge. The integral field unit source includes a four mirror design including an image slicer. The integral field spectrograph includes an array of spectrographs and an image slicer.

    PROJECTION OPTICAL SYSTEM AND PROJECTION TYPE DISPLAY DEVICE

    公开(公告)号:US20180321475A1

    公开(公告)日:2018-11-08

    申请号:US16031228

    申请日:2018-07-10

    发明人: Masaru AMANO

    摘要: A projection optical system is constituted by, in order from the reduction side, a first optical system for forming an image displayed by image display elements as an intermediate image, a first optical path bending means that bends an optical path with a reflective surface, and a second optical system for forming the intermediate image on a magnification side conjugate plane. The second optical system is constituted by, in order from the reduction side, a first lens group having a positive refractive power, a second optical path bending means that bends an optical path with a reflective surface, and a second lens group having a positive refractive power. Conditional Formulae (1) and (2) below are satisfied. 10.0

    PROJECTION OPTICAL SYSTEM AND PROJECTION IMAGE DISPLAY DEVICE

    公开(公告)号:US20180164554A1

    公开(公告)日:2018-06-14

    申请号:US15830571

    申请日:2017-12-04

    IPC分类号: G02B13/16 G02B17/00 G02B9/64

    摘要: A projection optical system includes a first lens unit adapted to make a enlargement-side imaging surface and an intermediate image conjugate with each other, a second lens unit adapted to make the intermediate image and a reduction-side imaging surface conjugate with each other. The first lens unit has positive power, and the second lens unit has negative power. Defining a focal distance of the first lens unit as fU1, a focal distance of the second lens unit as fU2, a total lens length of the first lens unit as LLU1, and a total lens length of the second lens unit as LLU2, the following expression (1) and expression (2) are satisfied. −0.3