Projection optical engine and projector
By combining air cooling and liquid cooling in the projector's optical components, the problem of poor heat dissipation of the optical components has been solved, resulting in more efficient heat dissipation and better image quality.
WO2026145040A1PCT designated stage Publication Date: 2026-07-09FORMOVIE (CHONGQING) INNOVATIVE TECH CO LTD
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Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- FORMOVIE (CHONGQING) INNOVATIVE TECH CO LTD
- Filing Date
- 2025-12-18
- Publication Date
- 2026-07-09
AI Technical Summary
Technical Problem
The projector's optical components have poor heat dissipation, leading to increased temperature.
Method used
A heat dissipation method combining air cooling and liquid cooling is adopted. By setting up liquid cooling chambers and air cooling chambers in different cavities of the optical components, heat is dissipated by coolant and gas respectively, forming a circulating airflow to remove heat.
Benefits of technology
It improves the heat dissipation of optical components, prevents overheating of optical components, improves the heat dissipation of projectors, enhances image quality, and reduces water droplet condensation.
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Smart Images
Figure CN2025143623_09072026_PF_FP_ABST
Abstract
The present application relates to a projection optical engine and a projector. The projection optical engine comprises an optical assembly, the optical assembly comprising a mounting frame, a first light-transmitting element, a first Fresnel lens, a second light-transmitting element, an LCD screen, and a third light-transmitting element. The first light-transmitting element, the first Fresnel lens, and the mounting frame form a first cavity; the second light-transmitting element, the LCD screen, and the mounting frame form a second cavity; the LCD screen, the third light-transmitting element, and the mounting frame form a third cavity; and the first Fresnel lens, the second light-transmitting element, and the mounting frame form a fourth cavity, wherein at least one of the first cavity, the second cavity, the third cavity, and the fourth cavity is a liquid-cooling cavity; and at least another one of the first cavity, the second cavity, the third cavity, and the fourth cavity is an air-cooling cavity. By combining air cooling with liquid cooling, superior heat dissipation of the optical assembly can be achieved, and the heat dissipation effect on the optical assembly is improved.
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