Laser Light Source Device with Dual Adjustment Mechanisms for Optical Alignment
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Solution Overview
Problem
Conventional light source devices and image display apparatuses face challenges in precisely adjusting laser light emission angles and focus, leading to color separation and blurred images due to variations in mounting and thermal expansion, and inadequate heat management, which affects optical adjustments and component durability under high temperatures.
Innovation Solution
The light source device incorporates a first and second adjustment mechanism for emission angle and focus adjustments, respectively, and a mirror for directional emission, along with a light source holding unit and base unit with protruding portions for improved heat transfer and reduced temperature increase, allowing precise optical adjustments and effective heat management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If laser light is used for image display, then the optical system can be downsized and large virtual images can be displayed, but color separation and blurred images occur due to imprecise adjustment of emission angles and focus
Solution Approach 1:
The patent implements adjustable emission angle mechanisms and focus adjustment mechanisms that allow dynamic optimization of laser beam parameters. The emission angle adjustment mechanism can change the angle at which laser light is emitted, while the focus adjustment mechanism can dynamically adjust the focal point of the laser beam. This dynamic adjustability enables the system to maintain precise optical alignment and image quality despite variations in mounting conditions and thermal expansion, thereby preventing color separation and blurred images while keeping the optical system compact.
Solution Approach 2:
The patent employs parameter change mechanisms that allow modification of key optical parameters including emission angle, focus position, and beam direction. By adjusting these parameters, the system can compensate for manufacturing tolerances and thermal effects, ensuring consistent image quality. The ability to change these parameters dynamically enables precise control over laser light behavior, preventing color separation and maintaining image clarity in a downsized optical configuration.
2Manufacturing precision
If multiple adjustment mechanisms are added for precise optical adjustment, then image clarity is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple adjustment functions into integrated mechanisms. The emission angle adjustment mechanism and focus adjustment mechanism are designed to work together as a coordinated system, sharing common structural elements and control pathways. This merging of functions reduces the overall number of independent components needed, simplifying the device while maintaining the capability for precise optical adjustment. The integrated design allows simultaneous optimization of emission angle and focus without requiring completely separate adjustment systems.
3Reliability
If heat transfer routes are increased for better heat management, then component durability is improved, but thermal expansion variations affect optical adjustments
Solution Approach 1:
The patent implements dynamic compensation mechanisms that can adjust optical parameters in response to thermal expansion. The emission angle adjustment and focus adjustment mechanisms are designed to compensate for dimensional changes caused by thermal expansion. By dynamically adjusting these parameters, the system maintains stable optical alignment despite thermal variations, ensuring both component durability through effective heat management and optical alignment stability.
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 the degree of freedom in optical adjustments, prevents color separation, and maintains image clarity while reducing thermal distortions and component damage under high temperatures, ensuring stable and clear virtual image display.
Implementation Method 1
a laser light source that emits laser light
Implementation Method 2
a first heat transfer route from the laser light source to the housing unit
Data Source
AI summary
A light source device includes a laser light source, a first adjustment mechanism, a second adjustment mechanism, and a mirror. The laser light source emits laser light. The first adjustment mechanism is configured such that the laser light from the laser light source is incident thereto, and performs an emission angle adjustment of the laser light and a focus adjustment of the laser light. The second adjustment mechanism is configured such that the laser light from the first adjustment mechanism is incident thereto, and performs a positional adjustment of the incident laser light. The mirror is configured such that the laser light from the second adjustment mechanism is incident thereto, and emits the incident laser light in a predetermined direction. An image display apparatus includes the above light source device.