X-Type Adjustment Module for Laser Projector Beam Alignment
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Solution Overview
Problem
The high cost and assembly complexity of using multiple blue laser diodes in projectors, particularly due to the need for precise alignment to avoid excessive energy concentration on the phosphor wheel, hinder efficient assembly and increase the risk of damage.
Innovation Solution
An X-type adjustment module with pivotally connected frames and adjustable light transmitting elements allows for individual angle adjustments of the transmission path, preventing excessive light concentration and improving assembly efficiency by ensuring even distribution of sub-beams.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If three groups of blue laser diodes are used to enhance luminance, then the luminance is improved, but the assembly precision requirement increases and assembly efficiency decreases
Solution Approach 1:
The patent applies the dynamics principle by making the light transmitting elements adjustable rather than fixed. The first and second light transmitting elements can be individually adjusted in angle through pivotal connections, allowing the system to adapt to different assembly conditions while maintaining proper light beam separation. This dynamic adjustment capability resolves the contradiction by reducing the stringency of initial assembly precision requirements.
2Reliability
If the blue light beams are combined without overlap, then phosphor wheel damage is prevented, but the device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the light combining function into separate first and second light transmitting elements arranged in an X-type configuration. Each element handles specific light beams independently, ensuring that blue light beams from different laser diode groups do not overlap. This segmented approach protects the phosphor wheel while maintaining manageable device complexity through modular design.
3Manufacturing precision
If high accuracy X-type light combining element is used, then light beam separation is improved, but the assembly efficiency decreases
Solution Approach 1:
The patent resolves this contradiction by implementing adjustable light transmitting elements that can be positioned at different angles. The first and second light transmitting elements are pivotally connected, allowing for easy adjustment during assembly to achieve proper light beam separation without requiring extremely high initial positioning accuracy. This dynamic adjustment capability maintains light combining accuracy while significantly improving assembly efficiency.
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
The module effectively controls the transmission path of sub-beams, enhancing assembly efficiency and preventing phosphor wheel damage from excessive light energy, thereby reducing costs and improving projector performance.
Implementation Method 1
a first light transmitting element and a second light transmitting element... Disposition angles of a first light transmitting element and a second light transmitting element can be individually adjusted
Data Source
AI summary
The invention discloses an X-type adjustment module, comprising a cover, a first frame, a second frame, a first light transmitting element, a second light transmitting element, a first adjustment member, and a second adjustment member. The first frame is pivotally connected to the cover. The second frame is pivotally connected to the first frame and intersects the first frame. The first light transmitting element is fixed in the first frame. The second light transmitting element is fixed in the second frame and intersects the first light transmitting element. The first adjustment member passes through the cover and abuts against the first frame. The second adjustment member passes through the cover and abuts against the second frame. A transmission path of a light beam is controlled by adjusting disposition angles of the first light transmitting element and the second light transmitting element to avoid excessive concentration of light energy.