公开(公告)号：US11439482B2

公开(公告)日：2022-09-13

申请号：US16446596

申请日：2019-06-19

Applicant: QISDA CORPORATION

Inventor： Chih-Ming Hu ,  Chih-Chieh Tsung

IPC: A61C9/00 ,  A61B1/06 ,  A61B1/24 ,  G02B27/00

Abstract: An intraoral scanner includes a casing, a light source disposed in the casing, a reflection plate obliquely disposed in the casing for reflecting light of the light source to an object to be scanned through an opening of the casing, a transparent plate, and a receiver adjacent to the light source. A projection optical axis of the light source forms a first oblique angle with a receiving optical axis of the receiver. The receiver receives light after being incident to the object to be scanned and then reflected to the receiver by the reflection plate. The transparent plate is disposed between the light source and the reflection plate or covers the opening. The projection optical axis forms a second oblique angle with a norm of the transparent plate to make a reflection angle range of light reflected by the transparent plate fall outside a receiving angel range of the receiver.

公开(公告)号：US20230204348A1

公开(公告)日：2023-06-29

申请号：US17736079

申请日：2022-05-03

Applicant: QISDA CORPORATION

Inventor： Ching-Huey Wang ,  Tsung-Hsun Wu ,  Chih-Ming Hu

IPC: G01B11/25

CPC classification number: G01B11/2518 ,  A61C9/006

Abstract: A three dimensional scanning apparatus is used to detect a contour of an object, and includes an illumination light source, a first elliptic opening portion, a reference pattern generator, a second elliptic opening portion and an optical receiver. The illumination light source emits an illumination beam. The reference pattern generator provides a reference pattern by projection of the illumination beam, and transmits the reference pattern toward the object via the first elliptic opening portion. The optical receiver receives a detection pattern reflected from the object via the second elliptic opening portion, so as to analyze a difference between the reference pattern and the detection pattern for acquiring the contour.

公开(公告)号：US20220252873A1

公开(公告)日：2022-08-11

申请号：US17467429

申请日：2021-09-06

Applicant: QISDA CORPORATION

Inventor： Tzu-Huan Hsu ,  Po-Fu Wu ,  Yuan-Yu Hsiao ,  Ching-Huey Wang ,  Chih-Kang Peng ,  Chun-Ming Shen ,  Chih-Ming Hu ,  Yi-Ling Lo

IPC: G02B27/00 ,  G02B26/10

Abstract: An calibration kit includes a base, a combination of calibration parts, and a manipulation part. The combination of calibration parts is disposed on the base and includes a first calibration part and a second calibration part. The first calibration part has a first calibration surface. The second calibration part has a second calibration surface. The first calibration part and the second calibration part are relatively movable in a movement direction and are movable relative to the base. The manipulation part is movably or rotatably disposed on the base. The manipulation part is configured to be operable to drive the first calibration part and the second calibration part to move in the movement direction relative to the base, so that the combination of calibration parts forms a three-dimensional calibration surface configuration through the first calibration surface and the second calibration surface.

公开(公告)号：US12044844B2

公开(公告)日：2024-07-23

申请号：US17467429

申请日：2021-09-06

Applicant: QISDA CORPORATION

Inventor： Tzu-Huan Hsu ,  Po-Fu Wu ,  Yuan-Yu Hsiao ,  Ching-Huey Wang ,  Chih-Kang Peng ,  Chun-Ming Shen ,  Chih-Ming Hu ,  Yi-Ling Lo

IPC: G02B27/00 ,  G01B5/00 ,  G01B5/24 ,  G01B9/02055 ,  G02B26/10

CPC classification number: G02B27/0031 ,  G01B5/0004 ,  G01B5/24 ,  G01B9/02055 ,  G02B26/10

Abstract: An calibration kit includes a base, a combination of calibration parts, and a manipulation part. The combination of calibration parts is disposed on the base and includes a first calibration part and a second calibration part. The first calibration part has a first calibration surface. The second calibration part has a second calibration surface. The first calibration part and the second calibration part are relatively movable in a movement direction and are movable relative to the base. The manipulation part is movably or rotatably disposed on the base. The manipulation part is configured to be operable to drive the first calibration part and the second calibration part to move in the movement direction relative to the base, so that the combination of calibration parts forms a three-dimensional calibration surface configuration through the first calibration surface and the second calibration surface.

公开(公告)号：US20190388195A1

公开(公告)日：2019-12-26

申请号：US16446596

申请日：2019-06-19

Applicant: QISDA CORPORATION

Inventor： Chih-Ming Hu ,  Chih-Chieh Tsung

IPC: A61C9/00 ,  G02B27/00 ,  A61B1/24 ,  A61B1/06

Abstract: An intraoral scanner includes a casing, a light source disposed in the casing, a reflection plate obliquely disposed in the casing for reflecting light of the light source to an object to be scanned through an opening of the casing, a transparent plate, and a receiver adjacent to the light source. A projection optical axis of the light source forms a first oblique angle with a receiving optical axis of the receiver. The receiver receives light after being incident to the object to be scanned and then reflected to the receiver by the reflection plate. The transparent plate is disposed between the light source and the reflection plate or covers the opening. The projection optical axis forms a second oblique angle with a norm of the transparent plate to make a reflection angle range of light reflected by the transparent plate fall outside a receiving angel range of the receiver.