Patent ID: 11960197
Assignee: CHENGDU PULSE OPTICAL CO., LTD.
Field: Optics (Instruments)
Classification: CPC F  G | IPC G

Claim 2:
3. A dynamic projection system suitable for an automobile, comprising
a light source, a collimating lens, a first microlens array, an LCD projection source and a second microlens array,
wherein the dynamic projection system further comprises a polarization grating used for separating P-polarized light and S-polarized light, a condensing lens and a wave plate array,
wherein the wave plate array comprises a plurality of ½ wave plates arranged at intervals;
wherein the polarization grating is arranged in front of the first microlens array and the second microlens array,
wherein the ½ wave plates are arranged between the first microlens array and the second microlens array to play a role in converting one of the P-polarized light and the S-polarized light into the other one of the P-polarized light and the S-polarized light,
wherein the LCD projection source and the condensing lens are sequentially arranged at the back of the second microlens array; and
wherein a conversion wave plate is further arranged between the polarization grating and the first microlens array.