Dual Optical Engine Projection Device Alignment Mechanism
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Solution Overview
Problem
Projection-type video display devices face challenges in achieving high performance and functionality while being simplified and reduced in price, particularly in accurately adjusting the positions of multiple projection units to ensure high-quality image display.
Innovation Solution
A projection-type video display device with two optical engines and an adjusting mechanism that allows for precise adjustment of the relative positions of the images projected by these engines, using a combination of mechanical and optical methods to align the images accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If two projection-type video display devices are used to achieve high performance and functionality, then display luminance, resolution, and functionality are improved, but the complexity of adjusting and aligning multiple projection units increases
Solution Approach 1:
The device is divided into multiple independent projection units (first and second projection units), each capable of projecting images independently. This segmentation allows the system to achieve higher luminance by combining multiple light sources while maintaining individual control over each unit's projection parameters, thus managing the complexity of alignment through modular design.
2Measurement precision
If two projection-type video display devices are used to achieve high performance and functionality, then display luminance, resolution, and functionality are improved, but the difficulty of accurately adjusting image positions increases
Solution Approach 1:
The system incorporates feedback mechanisms where the controller receives information about the positions and states of multiple projection units and automatically adjusts them to achieve proper alignment. This feedback loop eliminates the need for manual adjustment, ensuring accurate image positioning while reducing the difficulty of the adjustment process through automated control based on detected positional data.
Data Source
AI summary
The performance and the functionality of a projection-type video display device are improved to expand an application range of the projection-type video display device. The projection-type display device has two optical engines, increases the luminance of a display image, achieves a pseudo high resolution, or displays a three-dimensional image and a wide screen. The two optical engines have an adjusting mechanism to adjust a position on which an image is displayed. The adjusting mechanism has a plurality of mechanisms which adjust relative three-dimensional axis-direction positions between the two optical engines and inclinations of the optical engines with respect to axes. For example, in consideration of cross actions between adjustments, the plurality of adjusting mechanisms are allocated to the optical engines. As a result, the adjustments can be easily performed.