Light Beam Emission Device Using Condensing Member for Compact Projection
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Solution Overview
Problem
Existing light beam projection devices face challenges in downsizing and achieving high definition images without color irregularity, as they either require complex multiplexing or suffer from color irregularity due to non-integrated light beams.
Innovation Solution
A light beam emission device comprising multiple light sources and a condensing member, where the light sources are arranged such that their emission spots are within a specific range relative to the condensing member, allowing for collimated light beams to intersect at a convergent point, enabling efficient image projection without multiplexing and simplifying the device configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a multiplexer is used to multiplex light beams, then image quality is improved, but device complexity increases and downsizing becomes difficult
Solution Approach 1:
The patent extracts and removes the multiplexer component from the optical system, replacing it with a direct scanning approach using multiple light beams. This eliminates the complexity associated with multiplexing while maintaining image quality through parallel beam projection.
Solution Approach 2:
The patent segments the light beam projection into multiple independent beams that scan simultaneously or sequentially without being combined through a multiplexer. Each beam operates independently, simplifying the overall system architecture while achieving high-definition projection.
2Device complexity
If multiple light beams are scanned without multiplexing, then device configuration is simplified, but color irregularity is generated and image definition deteriorates
Solution Approach 1:
The patent merges multiple light beams in space without using a multiplexer, allowing them to coexist and scan the same projection area. This spatial merging approach maintains simple device configuration while achieving integrated projection that prevents color irregularity.
Solution Approach 2:
The patent transitions from temporal multiplexing (combining beams in time) to spatial parallelism (combining beams in space). By arranging light sources and scanning mirrors to project beams simultaneously in different spatial paths that converge on the projection screen, the system achieves high definition without complex multiplexing.
3Volume of moving object
If light sources are arranged with larger spacing, then device downsizing is easier, but color irregularity increases
Solution Approach 1:
The patent employs dynamic scanning control where the timing and positioning of multiple light beams are precisely adjusted during operation. This dynamic adjustment compensates for the spatial separation between light sources, maintaining color uniformity while allowing compact device arrangement.
Solution Approach 2:
The patent optimizes parameters such as light source spacing, beam divergence angles, and scanning synchronization timing to achieve a balance between device compactness and color uniformity. By carefully controlling these parameters, the system minimizes color irregularity while maintaining a downsized configuration.
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 allows for a compact, high-definition light beam projection device with reduced color irregularity, as it simplifies the device structure and enhances light beam power without compromising image quality.
Implementation Method 1
a condensing member, wherein a range in the light source array direction, in which emission spots of light beams emitted from the plurality of light sources respectively exist, is within a size in the array direction of a light beam, immediately after the light beam emitted from the emission spot located most closely to the center of the plurality of light sources, with respect to the condensing member, passed through the condensing member
Data Source
AI summary
Provided is a light beam emission device and a light beam projection device, that are downsizable, have a simple configuration, and simplify complicated processing of video signals, such as the timing adjustment of video output signals, without generating color irregularity. The devices include: a plurality of light sources; and a condensing member. A range in the light source array direction, in which emission spots of the light beams emitted from the plurality of light sources respectively exist, is within a size in the array direction of a light beam, immediately after the light beam emitted from an emission spot located most closely to the center of the plurality of light sources, with respect to the condensing member, passed through the condensing member.