光源系统及投影装置
By dynamically adjusting the emission time ratio of the excitation light through a light path switching device, the problem of unadjustable brightness caused by a fixed light source in the projection system is solved, and flexible control of projection brightness is achieved.
CN116165833BActive Publication Date: 2026-07-17CHENGDU XGIMI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CHENGDU XGIMI TECH CO LTD
- Filing Date
- 2021-11-17
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
The current and wavelength conversion devices of the light source in existing projection systems cannot be dynamically adjusted during operation, resulting in fixed projection brightness that cannot meet the needs of dynamic adjustment.
Method used
By introducing a light path switching device, the brightness of the projected image is adjusted by dynamically adjusting the proportion of time periods when the excitation light is emitted along different light paths through the alternating switching of the transmission and reflection zones.
Benefits of technology
This technology enables dynamic adjustment of the projected image brightness without changing the current, improving the flexibility and brightness adjustment capabilities of the projection system.
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Smart Images
Figure CN116165833B_ABST
Abstract
本申请公开了一种光源系统及投影装置，该光源系统包括激发光源，用于产生激发光；光路切换装置，用于引导来自激发光源的激发光交替的沿第一光路和第二光路出射，且可动态的调整在周期内沿第一光路出射的时段和沿第二光路出射的时段的比例；波长转换元件，用于将激发光转换为受激光，且设置在第一光路和第二光路中的至少一个光路上。本申请通过引入一个光路切换装置，将激发光分为多个光路，且可根据需要动态的调整在周期内沿不同光路出射的时段的比例，进而可以调整不同颜色光的占比，从而可以在不调节电流的情况下，调节投影画面的亮度。
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