Laser Light Source Assembly With Spherical Optical Axis Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing light source units require extremely high accuracy for the position of the optical axis of laser light, which is challenging to achieve due to limitations in the design and manufacturing processes.
Innovation Solution
A light source unit design featuring a support member with a convex receiving surface surrounding the optical axis, allowing for precise adjustment of the light source assembly through sliding and screwing mechanisms, coupled with laser welding for secure fixation, enhances the positional accuracy of the optical axis.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional light source assembly with a base, support member, and light source is used, then the structure is simple and easy to manufacture, but the positional accuracy of the optical axis of laser light is insufficient
Solution Approach 1:
The support member is designed with a spherical receiving surface that contacts the holding member at a single point. This spherical geometry enables precise angular adjustment of the light source assembly by allowing the holding member to be positioned at different locations on the spherical surface, thereby achieving high positional accuracy of the optical axis without complex adjustment mechanisms
Solution Approach 2:
The holding member is pre-equipped with a specific contact surface geometry that complements the spherical receiving surface. This preliminary design of the contact interface allows for precise positioning and adjustment to be performed during assembly, eliminating the need for post-assembly calibration and maintaining structural simplicity
2Manufacturing precision
If the light source assembly is fixed rigidly without adjustment capability, then the manufacturing process is simple, but the optical axis position cannot be adjusted with high accuracy
Solution Approach 1:
The fixing structure transitions from a rigid fixed state to a dynamically adjustable state. The holding member can be positioned at different locations on the spherical receiving surface to adjust the optical axis position, and then fixed in the desired position. This dynamic adjustment capability achieves high positional accuracy while maintaining relatively simple manufacturing processes
Solution Approach 2:
The light source assembly is segmented into the holding member and the support member as separate components. The holding member containing the light source and lens can be independently positioned and adjusted on the spherical receiving surface of the support member, enabling precise optical axis positioning without complicating the overall manufacturing process
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 design significantly improves the positional accuracy of the optical axis of laser light, enabling precise alignment and adjustment, which is critical for applications like projection display devices.
Implementation Method 1
The laser light emitted from the light source is condensed by the lens and passes through the opening of the base
Implementation Method 2
a light source that emits laser light
Data Source
AI summary
The light source unit includes a base provided with an opening, a support member fixed to the base at the opening, and a light source assembly fixed to the support member at the opening. The light source assembly includes a light source emitting laser light, a lens disposed on an optical axis of the laser light, and a holding member holding the light source and the lens. The support member has a convex receiving surface extending along the spherical surface so as to surround the optical axis when viewed from a direction parallel to the optical axis. The light source assembly is fixed to the support member by coupling the holding member to the receiving surface at a contact portion with the receiving surface. The receiving surface has a portion located on a side away from the optical axis with respect to a coupling part with the holding member.