Projector Highlight Modulation Using Non-Mechanical Beam Steering
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Solution Overview
Problem
Conventional multi-stage modulation projector systems rely on mechanical beam steering, which can be cumbersome and limited in flexibility, particularly in highlighting specific image areas.
Innovation Solution
Employ non-mechanical beam steering methods, such as holographic imaging and rotatable polarizers, to steer light beams without moveable mirrors, allowing for more flexible and efficient highlight modulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If mechanical beam steering (MEMS arrays or moveable mirrors) is used to steer light for highlighting, then the system can achieve precise highlight modulation, but the device complexity and mechanical reliability issues arise
Solution Approach 1:
The patent replaces mechanical beam steering systems (MEMS arrays, moveable mirrors) with a non-mechanical beam steering approach using a spatial light modulator (SLM) and holographic imaging. The SLM electronically modulates light phases and amplitudes to steer beams without mechanical movement, eliminating mechanical complexity while maintaining precise highlight modulation capability through computational optics methods
2Adaptability or versatility
If mechanical beam steering is used to steer light to arbitrary locations, then highlight flexibility is achieved, but reliability and operational smoothness deteriorate due to mechanical limitations
Solution Approach 1:
The invention substitutes mechanical beam steering with electronic beam steering using a spatial light modulator. The SLM can electronically reconfigure light paths to any arbitrary location without mechanical movement, achieving full adaptability while eliminating reliability issues associated with mechanical wear, friction, and finite resolution of mechanical steering systems
3Productivity
If conventional multi-stage modulation with mechanical modulators is used, then the system structure is established, but the system becomes cumbersome and less efficient
Solution Approach 1:
The patent merges multiple modulation stages into a single integrated system using one spatial light modulator that performs both beam steering and highlight modulation functions simultaneously. This consolidation eliminates the need for separate mechanical modulators at different stages, reducing overall system complexity while maintaining or improving modulation efficiency through unified optical control
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables precise and efficient highlighting of image features by leveraging holographic imaging and rotatable polarizers, enhancing image quality and reducing mechanical complexity.
Implementation Method 1
Employ non-mechanical beam steering methods, such as holographic imaging and rotatable polarizers, to steer light beams without moveable mirrors
Implementation Method 2
Employ non-mechanical beam steering methods, such as holographic imaging and rotatable polarizers, to steer light beams without moveable mirrors
Data Source
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AI summary
Dual or multi-modulation display system are disclosed that comprise projector systems with at least one modulator that may employ non-mechanical beam steering modulation. Many embodiments disclosed herein employ a non-mechanical beam steering and/or polarizer to provide for a highlights modulator.