公开(公告)号：US20230074556A1

公开(公告)日：2023-03-09

申请号：US17901426

申请日：2022-09-01

Applicant: Crystalvue Medical Corporation

Inventor： Chun Nan LIN ,  Kun Cheng HSIEH

IPC: A61B3/00

Abstract: A guiding fixation method applied to an eye examination device is disclosed. The eye examination device at least includes a first default light source and a second default light source. The guiding fixation method includes steps of: (a) disposing at least one dummy light source between the first default light source and the second default light source; (b) when a distance between the eye examination device and an eye changes, the dummy light source emitting light to guide the eye to gaze at it; (c) when the distance between the eye examination device and the eye stops changing, switching to the first default light source and/or the second default light source to emit light to guide the eye to gaze at it.

公开(公告)号：US20220395173A1

公开(公告)日：2022-12-15

申请号：US17686087

申请日：2022-03-03

Applicant: Crystalvue Medical Corporation

Inventor： Chun Nan LIN ,  Kun Cheng HSIEH

IPC: A61B3/032 ,  A61B3/00

Abstract: An optotype calibration method is disclosed. The optotype calibration method includes steps of: (a) when a first optotype and a second optotype located outside an observable area, moving the observable area from an original position until the first optotype or the second optotype appears in the observable area; (b) adjusting a focus mechanism to make the first optotype and the second optotype close to each other; (c) moving the observable area back to the original position; and (d) repeating the steps (a)-(c) until the first optotype and the second optotype align with each other.