TEMPORAL MODELING OF PHASE MODULATORS IN MULTI-MODULATION PROJECTION

• Main Authors: RICHARDS MARTIN J, VAN KESSEL PETER FRANCIS, ORLICK CHRISTOPHER JOHN, PERTIERRA JUAN P, LIPPEY BARRET, DAVIES TREVOR
• Format: Patent
• Language: Chinese; English
• Published: 04.08.2020
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

A dual-modulation projection system (100) includes a light source (102), a phase modulator (104), an amplitude modulator (106), and a controller (110) having temporal lightfield simulation capabilities (114). The phase modulator (104) spatially modulates a lightfield from the light source (102) to generate an intermediate image on the amplitude modulator (106). The amplitude modulator (106) spatially modulates the intermediate image to form a final image. The controller (110) models the phase state of the phase modulator (104) during transitions between phase modulator frames and generates lightfield simulations of the intermediate image during the transition. The controller (110) utilizes the lightfield simulations to generate and provide sets of amplitude drive values to the amplitude modulator (106) at a faster rate than that at which the phase modulator (104) is capable of switching. 双调制投影系统(100)包括光源(102)、相位调制器(104)、幅度调制器(106)和具有时间光场模拟能力(114)的控制器(110)。相位调制器(104)在空间上对来自光源(102)的光场进行调制，以在幅度调制器(106)上生成中间图像。幅度