Single Projector 2D and 3D Image Quality Optimization
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Solution Overview
Problem
Conventional 3D projection systems require multiple projectors and alignment, making them complex and difficult to maintain, while also limiting the ability to optimize 2D and 3D image color points independently.
Innovation Solution
A processor-adjusted single projector system that generates images in specific wavelength bands, allowing for independent control of image attributes like brightness, gamma, and contrast, using three-color-band filters to ensure optimal 2D and 3D image quality without the need for realignment or separate projectors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If multiple projectors are used for 3D projection, then stereoscopic image quality is improved, but device complexity and maintenance difficulty increase
Solution Approach 1:
The patent combines two separate projectors into a single projector system that can project both left-eye and right-eye images. The single projector uses a color separation system with red and blue filters to create stereoscopic images, eliminating the need for multiple projectors while maintaining 3D image quality.
Solution Approach 2:
The single projector is designed to perform multiple functions: it can project both 2D and 3D images, and can separately control color points for different wavelength bands. The system universally handles both stereoscopic and non-stereoscopic projection modes through software control and filter combinations.
2Manufacturing precision
If multiple projectors are used for 3D projection, then stereoscopic image quality is improved, but ease of operation and maintenance worsen
Solution Approach 1:
By merging multiple projectors into one, the patent eliminates alignment issues between separate devices. The single projector requires no inter-device alignment, and maintenance is simplified to a single device rather than coordinating multiple projectors.
Solution Approach 2:
The system includes automatic color point optimization that adjusts image attributes without manual intervention. The processor automatically optimizes color points for different wavelength bands, reducing the need for manual calibration and maintenance operations.
3Device complexity
If a single projector is used for both 2D and 3D, then device complexity is reduced, but the ability to optimize color points independently is limited
Solution Approach 1:
The patent applies different color point optimizations to different wavelength bands within the same projector system. The red filter path and blue filter path can have independently optimized color points, allowing local optimization while maintaining overall system simplicity.
Solution Approach 2:
The system changes optical parameters by using different filter combinations for different wavelength bands. The processor can adjust image attributes including color point for red and blue bands independently, enabling versatile optimization without increasing hardware complexity.
4Manufacturing precision
If conventional 3D projection is used, then stereoscopic effect is achieved, but brightness is reduced
Solution Approach 1:
The system uses sequential projection of left-eye and right-eye images through red and blue filters in alternating time slots. This periodic action allows each eye to receive full brightness during its active period, and the persistence of vision combines them into a bright stereoscopic image.
Solution Approach 2:
The patent changes the temporal parameter of image projection by using alternating sequential projection rather than simultaneous projection. This allows maximum brightness to be delivered to each eye during its active period while maintaining stereoscopic separation through timing rather than spatial division.
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 the use of a single projector for both 2D and 3D images, maintaining ease of use and optimizing color points independently, with improved color accuracy and reduced maintenance, while maintaining high brightness levels for 3D projections.
Implementation Method 1
a first color filter transmits light in a first three bands of wavelengths and reflects light in other wavelengths, a second color filter transmits light in a second three bands of wavelengths and reflects light in other wavelengths
Implementation Method 2
a first color filter transmits light in a first three bands of wavelengths and reflects light in other wavelengths, a second color filter transmits light in a second three bands of wavelengths and reflects light in other wavelengths
Implementation Method 3
a lens focuses light from the second color filter onto a viewing screen
Data Source
AI summary
A processor adjusts a first image generated by a projector and a second image generated by the projector in a first manner if the first and second images together include a stereoscopic image, and in a second manner if the first and second images do not include a stereoscopic image.