公开(公告)号：US20240302726A1

公开(公告)日：2024-09-12

申请号：US18443251

申请日：2024-02-15

申请人： Qisda Corporation

发明人： Chia-Chun Hsu ,  Chih-Wei Cho

IPC分类号： G03B21/16 ,  G01K3/04 ,  G01K3/10

CPC分类号： G03B21/16 ,  G01K3/04 ,  G01K3/10

摘要： A projection apparatus and an overheating protection method thereof are provided. An initial stable temperature corresponding to an initial accumulated usage time during an initial usage period is obtained by using a temperature sensor in the projection apparatus. At least one stable temperature respectively corresponding to at least one accumulated usage time is obtained by using the temperature sensor in the projection apparatus. An estimated time corresponding to a target temperature is estimated according to the initial accumulated usage time, the initial stable temperature, the at least one stable temperature, and the at least one accumulated usage time. A temperature protection operation of the projection apparatus is executed in response to a current accumulated usage time of the projection apparatus exceeding the estimated time.