Patent ID: 11917342
Assignee: SONY SEMICONDUCTOR SOLUTIONS CORPORATION
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 12:
13. A control method for a projection system, comprising:
forming image light through an image formation apparatus;
causing the image light to enter a projection lens during projection of the image light;
measuring, by a measurement apparatus, the image light;
controlling, by a control apparatus, an output of the measurement apparatus;
performing, by the control apparatus, calibration processing of the image light;
disposing a light-reflecting element between the image formation apparatus and the projection lens; and
switching, by a measurement assisting apparatus, between a first state and a second state, wherein
the switch of the measurement assisting apparatus to the first state is based on projection of the image light onto a screen,
the switch of the measurement assisting apparatus to the second state is based on the performance of the calibration processing of the image light,
the first state corresponds to entrance of the image light in the projection lens, and
the second state corresponds to the entrance of the image light in the measurement apparatus.