公开(公告)号：US09851560B2

公开(公告)日：2017-12-26

申请号：US14818330

申请日：2015-08-05

Applicant: Industrial Technology Research Institute

Inventor： Ming-Chieh Chou ,  Chi-Hung Lee ,  Yi-Cheng Chen

IPC: G02B27/01 ,  G02B3/00 ,  G02B27/48

CPC classification number: G02B27/0101 ,  G02B3/0056 ,  G02B27/48

Abstract: An optical device including a first lens array is provided. The first lens array has micro-lens units arranged in an array. An outline of each of the micro-lens units is polygonal-shaped, circular or ellipsoidal. Moreover, a projection apparatus is also provided.

公开(公告)号：US10247582B2

公开(公告)日：2019-04-02

申请号：US15414630

申请日：2017-01-25

Applicant: Industrial Technology Research Institute

Inventor： Ming-Chieh Chou ,  Chi-Hung Lee ,  Ching-Chang Chen ,  Yi-Cheng Chen

IPC: G01D5/38 ,  G01D5/347

Abstract: An optical encoding device includes a light source module, an encoding disc, and a photodetector. The light source module emits a source beam. The encoding disc is disposed on a passing path of the source beam. The encoding disc has first diffracting patterns. The first diffracting patterns include a plurality of sets of first diffracting patterns arranged along a radial direction of the encoding disc. Each set of the first diffracting patterns includes a plurality kinds of first diffracting patterns having different pattern extending directions and different pattern periods. When the encoding disc is rotating, the first diffracting patterns in each set of first diffracting patterns enter the passing path of the source beam in sequence, to cause a diffraction and form diffracted beams having different angles. The photodetector receives the diffracted beams having the different angles.

公开(公告)号：US20180113008A1

公开(公告)日：2018-04-26

申请号：US15414630

申请日：2017-01-25

Applicant: Industrial Technology Research Institute

Inventor： Ming-Chieh Chou ,  Chi-Hung Lee ,  Ching-Chang Chen ,  Yi-Cheng Chen

IPC: G01D5/347

CPC classification number: G01D5/3473 ,  G01D5/38

Abstract: An optical encoding device includes a light source module, an encoding disc, and a photodetector. The light source module emits a source beam. The encoding disc is disposed on a passing path of the source beam. The encoding disc has first diffracting patterns. The first diffracting patterns include a plurality of sets of first diffracting patterns arranged along a radial direction of the encoding disc. Each set of the first diffracting patterns includes a plurality kinds of first diffracting patterns having different pattern extending directions and different pattern periods. When the encoding disc is rotating, the first diffracting patterns in each set of first diffracting patterns enter the passing path of the source beam in sequence, to cause a diffraction and form diffracted beams having different angles. The photodetector receives the diffracted beams having the different angles.

公开(公告)号：US20160266477A1

公开(公告)日：2016-09-15

申请号：US14818330

申请日：2015-08-05

Applicant: Industrial Technology Research Institute

Inventor： Ming-Chieh Chou ,  Chi-Hung Lee ,  Yi-Cheng Chen

IPC: G03B21/14 ,  G02B27/01 ,  G02B3/00

CPC classification number: G02B27/0101 ,  G02B3/0056 ,  G02B27/48

Abstract: An optical device including a first lens array is provided. The first lens array has micro-lens units arranged in an array. An outline of each of the micro-lens units is polygonal-shaped, circular or ellipsoidal. Moreover, a projection apparatus is also provided.

Abstract translation: 提供了包括第一透镜阵列的光学装置。 第一透镜阵列具有排列成阵列的微透镜单元。 每个微透镜单元的轮廓是多边形的，圆形的或椭圆形的。 此外，还提供了投影装置。

公开(公告)号：US11187559B2

公开(公告)日：2021-11-30

申请号：US16432383

申请日：2019-06-05

Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE

Inventor： Ming-Chieh Chou ,  Kuo-Chih Wang ,  Chi-Hung Lee ,  Yi-Cheng Chen

IPC: G01D5/347

Abstract: A code disk is adapted to an optical absolute rotary encoder. The code disk is divided into a plurality of columns, with the plurality of columns disposed in a circumferential direction around a center position and respectively extending in a plurality of radial directions. The code disk comprises a plurality of disk sectors sequentially disposed in the circumferential direction around the center position, wherein each of the disk sectors comprises a plurality of code pieces, each of the code pieces comprises an encoded value, each of the encoded values comprises a plurality of bits adopting Manchester code, these bits are arranged in one of the radial directions, and the encoded values of two of the disk sectors are arranged as Gray code.