Optical Device Non-Continuous Support Reduces Vibration Noise
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Solution Overview
Problem
Current projection devices face challenges in achieving high image resolution without incurring excessive costs and often produce unpleasant noise due to vibrations between the light transmissive plate and its frame, which affects the image quality and user experience.
Innovation Solution
The optical device incorporates a holder with a first frame and a second frame connected inside each other, where the light transmissive plate is partially supported by non-continuously distributed surface supporting parts along the inner surfaces of the first frame, reducing the impact area and thus minimizing noise during operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the light transmissive plate is supported along the entire inner surface of the frame, then the support stability is improved, but the noise generated during vibration is increased
Solution Approach 1:
The continuous support surface is segmented into multiple discrete support points or support regions. Instead of providing continuous contact between the frame's inner surface and the light transmissive plate, the support function is divided into separate locations, which reduces the contact area where impact noise occurs during vibration while maintaining adequate support stability.
2Measurement precision
If a high-resolution light valve is used to improve image resolution, then the image quality is improved, but the device cost is increased
Solution Approach 1:
The patent applies mechanical vibration to the optical module (including the light transmissive plate) to dynamically enhance the effective resolution of the image. By vibrating the optical components at specific frequencies and amplitudes, the system can achieve super-resolution effects that go beyond the static resolution limits of the light valve, thereby improving image resolution without requiring a more expensive high-resolution light valve.
Data Source
AI summary
An optical device including a holder and a light transmissive plate is provided. The holder includes a first frame and a second frame connected to each other, and the first frame is located inside the second frame. A light transmissive plate is disposed inside the first frame and has a surface. The first frame has at least one inner surface and includes at least one surface supporting part, and the surface supporting part extends along a direction from the inner surface of the first frame to the center of the first frame, and the surface of the light transmissive plate is at least partially supported by the surface supporting part of the first frame. The surface supporting part is non-continuously distributed along the inner surface of the first frame. The disclosure further provides a projector including the optical device.