Light Source Module Adjustable Condenser Alignment
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Solution Overview
Problem
Current light source devices for projection apparatuses face challenges in achieving efficient light use and uniform illumination, particularly in combining multiple light paths to enhance brightness, due to limitations in adjusting optical components for optimal alignment and beam convergence.
Innovation Solution
The proposed solution involves a light source module with a light source, condenser lenses, and adjusters to precisely position and align light beams, including a wavelength converter and a light homogenizer with a rectangular light incident opening, to form adjacent irradiation spots that are efficiently combined for uniform illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If multiple light paths are combined to enhance brightness, then illumination intensity is improved, but alignment precision and beam convergence become more difficult to achieve
Solution Approach 1:
The patent employs adjustable condenser lenses that can be dynamically positioned along the optical axis to optimize beam convergence when combining multiple light paths. This dynamic adjustment capability allows the system to achieve precise alignment of multiple light beams without compromising brightness enhancement, directly resolving the contradiction between combining light paths for higher illumination and maintaining alignment precision.
2Use of energy by moving object
If condenser lenses are used to condense light beams, then light use efficiency is improved, but the complexity of the optical system increases
Solution Approach 1:
The patent divides the condensing function into multiple condenser lenses positioned at different locations in the optical path. Each condenser lens handles a specific segment of the light beam conditioning process, allowing for optimized light collection and convergence at different stages. This segmentation approach improves overall light use efficiency while distributing the optical complexity across modular components rather than requiring a single complex element.
3Manufacturing precision
If adjusters are added to precisely position optical components, then alignment precision is improved, but device complexity increases
Solution Approach 1:
The adjusters in the patent are designed to perform multiple functions: they not only position the condenser lenses for precise alignment but also control the convergence angle of light beams and adjust the positioning of irradiation spots on the wavelength converter. This multi-functionality allows a single adjustment mechanism to address multiple alignment requirements, improving precision without proportionally increasing device complexity.
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 significantly increases light use efficiency and brightness by ensuring precise alignment and combination of light beams, leading to improved image projection quality.
Implementation Method 1
a first condenser lens to condense the light beam emitted from the light source in the first direction; a condenser optical system to condense the light beam from the first condenser lens in a second direction orthogonal to the first direction to form an irradiation spot
Implementation Method 2
a wavelength converter to convert the first wavelength band of the light beam condensed by the condenser optical system into a light beam having a second wavelength band
Implementation Method 3
a second condenser lens to condense the light beam having the second wavelength band converted by the wavelength converter at a predetermined position
Data Source
AI summary
A light source module includes: a light source to emit a light beam having a first wavelength band in a first direction; a first condenser lens to condense the light beam emitted from the light source in the first direction; a condenser optical system to condense the light beam from the first condenser lens in a second direction orthogonal to the first direction to form an irradiation spot; a wavelength converter to convert the first wavelength band of the light beam condensed by the condenser optical system into a light beam having a second wavelength band; a second condenser lens to condense the light beam having the second wavelength band at a predetermined position, a first adjuster to adjust a position of the first condenser lens; and a second adjuster to adjust a position of the second condenser lens.