DMD-based infrared projection device and quantitative output method thereof

• Main Authors: WANG JUN, SUN XIANJUN, LIU CHANG, FAN XIAOLI
• Format: Patent
• Language: Chinese; English
• Published: 01.09.2017
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; PICTORIAL COMMUNICATION, e.g. TELEVISION

The invention discloses a DMD-based infrared projection device. The DMD-based infrared projection device comprises a scene generation computer, a controller, a drive circuit, a blackbody, a light optical system, a DMD, a projection optical system, and an infrared detection device. The DMD-based infrared projection device further comprises at least two reference blackbodies. The at least two reference blackbodies are reflected by a coupling optical system and then are projected by the projection optical system to a pupil entrance of the infrared detection device. The temperature of the reference blackbodies is fixed, the infrared detection device measures the grey level of an image formed by the reference blackbodies and compares the image with an image reflected by the DMD, so as to calculate the grey level in the image accurately, so that quantitative output of the DMD-based infrared projection device is realized. 本发明公开了种基于DMD红外投影设备，包括场景生成计算机、控制器、驱动电路、黑体、照明光学系统、DMD、投影光学系统、红外探测设备，所述DMD红外投影设备还包括有至少两个参考黑体，至少两个所