Movable Image Generating Unit for High Resolution Projection
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Solution Overview
Problem
Existing image projecting apparatuses face challenges in enhancing image resolution while reducing size and weight, making them more portable and efficient in space usage.
Innovation Solution
The design incorporates a movable image generating unit with a fixed and movable plate configuration, including a digital micromirror device (DMD) that receives illumination light and a heat radiating part, allowing for improved image resolution and compactness by adjusting the position of the DMD and utilizing a heat sink to manage thermal issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a method is used for shifting optical axes with respect to light beams emitted from a plurality of pixels of a display element to shift the pixels so as to display an image with higher resolution than that of the display element, then image resolution is improved, but device complexity and size increase
Solution Approach 1:
The patent employs a movable unit that can dynamically adjust the position of the image generating part (DMD) relative to the fixed unit. This dynamic positioning capability allows the system to shift optical axes and achieve super-resolution imaging without requiring complex static mechanical structures, thereby improving image resolution while controlling device complexity through motion-based solutions
Solution Approach 2:
The patent introduces a spatial dimension by implementing a movable unit that translates the image generating part along the optical axis and laterally. This dimensional transformation enables resolution enhancement through positional variation rather than through complex in-plane pixel arrangements, effectively solving the resolution-complexity contradiction by operating in an additional spatial dimension
2Measurement precision
If a method is used for shifting optical axes with respect to light beams emitted from a plurality of pixels of a display element to shift the pixels so as to display an image with higher resolution than that of the display element, then image resolution is improved, but the space required for installing the apparatus increases
Solution Approach 1:
By using a movable unit with controlled translation along the optical axis and lateral movement, the patent achieves resolution enhancement within a compact footprint. The dynamic repositioning of the image generating part allows multiple imaging positions to be accessed sequentially, eliminating the need for large static optical paths and reducing overall installation space
Solution Approach 2:
The patent implements a nested structure where the movable unit is contained within the housing, and the image generating part is nested within the movable unit. This nested arrangement allows the optical components to be compactly organized, reducing the horizontal and vertical space requirements while maintaining the functionality needed for super-resolution imaging
3Ease of operation
If the apparatus is downsized to reduce space requirements and improve portability, then ease of operation and portability are improved, but heat dissipation becomes more difficult
Solution Approach 1:
The patent extracts the heat radiating part as a separate, dedicated component that is coupled to the movable part. This extracted heat management system includes features specifically designed for thermal dissipation (such as heat sinks or radiation surfaces) that can be optimized independently from the compact housing design, allowing the main apparatus to remain small and portable while the heat radiating part efficiently manages thermal loads
Solution Approach 2:
The movable part serves as an intermediary between the image generating part (heat source) and the heat radiating part. This intermediary structure facilitates thermal coupling while allowing the heat to be conducted to dedicated radiating surfaces, effectively separating the compact imaging function from the heat dissipation function and enabling both portability and effective thermal management
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
This configuration enhances image resolution beyond the capabilities of the DMD alone and reduces the overall size and weight of the apparatus, enabling more versatile and efficient image projection systems.
Implementation Method 1
a heat radiating part coupled to the movable part and configured to radiate heat generated in the image generating part
Implementation Method 2
the second fixed plate being sandwiched between the heat radiating part and the movable part
Data Source
AI summary
An image generating unit includes a fixed unit including a first fixed plate and a second fixed plate; and a movable unit movably supported by the fixed unit. The movable unit includes a movable part movably supported between the first fixed plate and the second fixed plate; an image generating part provided on the movable part and configured to receive illumination light to generate an image; and a heat radiating part coupled to the movable part and configured to radiate heat generated in the image generating part, the second fixed plate being sandwiched between the heat radiating part and the movable part.