公开(公告)号：US11473895B2

公开(公告)日：2022-10-18

申请号：US16920287

申请日：2020-07-02

Applicant: National Applied Research Laboratories

Inventor： Yi-Cheng Liu ,  Chun-Jen Weng ,  Tai-Shan Liao ,  Guo-Hao Lu

IPC: G01B9/02056 ,  G02B27/10 ,  G02B1/11 ,  G02B5/08 ,  G02B17/06

Abstract: The present invention provides a reflective condensing interferometer for focusing on a preset focus. The reflective condensing interferometer includes a concave mirror set, a convex mirror, a light splitting element, and a reflecting element. The concave mirror set has first and second concave surface portions which are oppositely located on two sides of a central axis passing through the preset focus and are concave on a surface facing the central axis and the preset focus. Light is preset to be incident in parallel to the central axis in use. The convex mirror is disposed between the concave mirror set and the preset focus on the central axis, and is convex away from the preset focus. The light splitting element vertically intersects with the central axis between the convex mirror and the preset focus. The reflecting element is disposed between the light splitting element and the convex mirror.

公开(公告)号：US11487014B2

公开(公告)日：2022-11-01

申请号：US16830538

申请日：2020-03-26

Applicant: NATIONAL APPLIED RESEARCH LABORATORIES

Inventor： Tai-Shan Liao ,  Long-Jeng Lee ,  Shih-Jie Chou ,  Chun-Jen Weng

IPC: G01S17/89 ,  G01S7/48 ,  G01S7/481

Abstract: An integrated device includes a laser ranging module, a dual-branched fiber bundle, a beam splitter, and an image receiving module. The laser ranging module includes a light source, an optical receiver and a computing unit. The fiber bundle is disposed between the laser ranging module and the beam splitter. A target reflects a measuring beam emitted by the light source to form a reflected beam. The beam splitter splits the reflected beam into a first reflected beam and a second reflected beam. The first reflected beam is transmitted to the optical receiver through the fiber bundle to generate a measurement signal. The computing unit receives the measurement signal to calculate a distance between the target and the fiber bundle. The image receiving module is disposed on the optical path of the second reflected beam to receive the second reflected beam and displays the image of the target.