Integrated Light Source and Collimating Lens Module for Multi-Wavelength Beam Alignment
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Solution Overview
Problem
Existing projection apparatuses for generating light with multiple wavelengths are complex, difficult to manufacture precisely, and suffer from poor luminous efficiency due to inaccuracies in alignment and component complexity.
Innovation Solution
An apparatus with a housing containing collimating lenses and beam guiding elements, including a positioning module that allows for precise positioning and correction of light sources, utilizing dichroic mirrors and prism telescopes to combine light beams accurately and efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If laser diodes are adhesively bonded in receptacles and mirrors are used for combining light beams, then light beam combination is achieved, but alignment accuracy deteriorates and device complexity increases
Solution Approach 1:
The patent combines the light source and collimating lens into a single integrated module, eliminating the need for separate receptacles and adhesive bonding. This integration directly improves alignment accuracy by preventing misalignment between components while reducing device complexity by removing unnecessary intermediate structures.
Solution Approach 2:
The collimating lens is pre-positioned and integrated with the light source in a fixed relationship during manufacturing. This preliminary positioning ensures precise alignment is achieved once during production, eliminating the need for complex post-assembly alignment procedures and mirrors.
2Reliability
If multiple mirrors are used for combining light beams and correcting alignment errors, then light combination is achieved, but manufacturing complexity increases
Solution Approach 1:
The patent integrates the collimating function directly with the light source through a unified module design. This eliminates the need for separate mirrors to correct alignment errors, as the integrated structure inherently maintains proper alignment. The result is improved reliability through stable alignment while dramatically simplifying manufacturing processes.
3Ease of operation
If diaphragm is arranged between light source and collimating lens, then beam control is achieved, but luminous efficiency deteriorates
Solution Approach 1:
The patent removes the diaphragm component from the optical path between the light source and collimating lens. By extracting this energy-blocking element, the system achieves full utilization of the light source output, maximizing luminous efficiency while maintaining beam control through the integrated optical design.
4Shape
If complex optical modification apparatus is used to form round beam diameter, then beam quality is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent integrates the beam shaping function directly into the collimating lens design, eliminating the need for separate optical modification apparatus. This integration achieves uniform round beam diameter through the lens design itself, significantly reducing manufacturing difficulty while maintaining beam quality.
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 solution enables simplified and precise manufacturing of light sources with high luminous efficiency and accurate superimposition of colors, overcoming the complexities and inefficiencies of prior technologies.
Implementation Method 1
the housing comprises collimating lenses for collimating a light beam which emerges from said light sources
Implementation Method 2
utilizing dichroic mirrors and prism telescopes to combine light beams accurately
Data Source
AI summary
An apparatus for generating light having a plurality of wavelengths comprises a housing (1) and light sources (2) inside the housing (1). The light sources (2) are especially in the form of laser diodes. Preferably, three light sources having different wavelengths are formed. The apparatus further comprises collimating lenses (3) for collimating a light beam emitted by the light sources (2), and beam guiding elements for bundling the light beams. The collimating lenses (3) are disposed in a positioning module (4) that allows the collimating lenses (3) to be placed in different positions during the manufacturing process of the apparatus.