Laser Projection Apparatus Heat Dissipation and Resolution
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Solution Overview
Problem
Current laser projection technologies face challenges in achieving high-definition imaging with ultra-short-focus projection, where the design complexity is increased due to the need for high magnification and aberration correction, and there are issues with light attenuation and heat dissipation in laser sources.
Innovation Solution
The laser projection apparatus incorporates a pure three-color laser source with a specific arrangement of laser assemblies, an optical engine, and a lens system, including a vibrating lens for improved resolution and heat dissipation structures like heat pipes and fins to manage temperature and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If ultra-short-focus projection is used to achieve high-definition imaging, then projection magnification is improved, but design complexity increases due to aberration correction requirements
Solution Approach 1:
The optical system is segmented into multiple lens groups with different functions: a vibrating lens group for resolution enhancement, a static lens group for basic focusing, and a prism assembly for light path deviation. This segmentation allows each component to be optimized independently, reducing overall design complexity while achieving high magnification.
Solution Approach 2:
The patent introduces a vibrating lens that oscillates at specific frequencies to interfere with light waves and improve resolution. This dynamic element adds functionality without requiring a completely complex static optical design, as the vibration can be controlled electronically rather than through mechanical adjustment mechanisms.
2Illumination intensity
If laser source power is increased to improve brightness, then luminance is improved, but heat generation increases causing stability issues
Solution Approach 1:
The patent converts the harmful heat generated by high-power laser sources into a manageable parameter by implementing dedicated heat dissipation pathways. Heat pipes are attached to laser modules to conduct away thermal energy, and the housing includes ventilation structures that actively manage heat flow, allowing high luminance operation without compromising stability.
Solution Approach 2:
Heat pipes serve as intermediary thermal management components between the laser modules and the housing. These heat pipes act as thermal conduits that efficiently transfer heat from the high-power laser sources to areas where it can be dissipated through ventilation structures, mediating the thermal relationship between light generation and heat management.
3Measurement precision
If optical components are added to correct aberrations, then imaging quality is improved, but light attenuation increases
Solution Approach 1:
The patent uses mechanical vibration of a lens at specific frequencies to create interference patterns that improve resolution and imaging quality. This approach achieves optical enhancement through dynamic vibration rather than adding multiple static optical elements, thereby improving imaging while minimizing light attenuation.
Solution Approach 2:
The patent changes the operational parameters of existing optical components, specifically by vibrating a lens at controlled frequencies and amplitudes. This parameter change allows the single lens to perform multiple functions including aberration correction and resolution enhancement without requiring additional optical elements that would cause light loss.
4Volume of moving object
If laser modules are arranged in a compact configuration, then device size is reduced, but heat dissipation becomes more difficult
Solution Approach 1:
The patent implements a nested configuration where heat pipes are integrated directly with laser modules, which are in turn housed within a compact housing that includes built-in ventilation structures. This nested arrangement allows thermal management components to be embedded within the compact form factor rather than added as external elements, maintaining small device size while ensuring effective heat dissipation.
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 enables high-definition image projection with efficient heat management, reducing laser loss and maintaining stable luminance, while addressing design complexities and light attenuation issues.
Implementation Method 1
a heat pipe connected to the laser module, the heat pipe configured to conduct heat away from the laser module
Implementation Method 2
a vibrating lens for improved resolution and heat dissipation structures like heat pipes and fins to manage temperature and efficiency
Implementation Method 3
heat dissipation structures like heat pipes and fins to manage temperature and efficiency
Data Source
AI summary
An laser projection apparatus includes: a laser projection apparatus housing, a laser source system disposed in the apparatus housing, and the laser source system including a first laser outlet, an optical engine disposed in the apparatus housing, and the optical engine including a second laser inlet and a third laser outlet, and the second laser inlet being connected to the first laser outlet; a lens system disposed in the apparatus housing, and one end of the lens system extending to the third laser outlet; and at least one circuit board. The lens system and the optical engine are disposed along a first direction of the apparatus housing to divide space in the apparatus housing into a first region and a second region.