Mirror Holding Mechanism Cam Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing curved mirror adjustment devices face difficulties in finely adjusting the position and angle of the curved mirror, as the thickness or number of washers must be changed to adjust the mirror's position and angle, making continuous adjustments challenging, especially when checking a projection image reflected by the mirror.
Innovation Solution
A mirror holding mechanism with a cam member rotatably held by the mirror holding member, featuring guide holes and cam surfaces that allow the shaft portion to move orthogonally, enabling continuous adjustment of the reflection mirror's position and angle without removing it from the holding member, using cam members to rotate and adjust the reflection mirror's position and angle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If washers are used to adjust the position and angle of the curved mirror, then the mirror can be adjusted, but continuous adjustment is difficult and fine-tuning is challenging
Solution Approach 1:
The patent replaces the traditional mechanical washer-based adjustment system with an electromagnetic actuator system. The actuator uses electromagnetic fields to drive the mirror positioning, enabling continuous and precise adjustment without the discrete step limitations of washers. This substitution allows for fine-tuning of mirror position and angle while maintaining ease of operation through electronic control.
Solution Approach 2:
The patent implements continuous variable adjustment of mirror position and angle by changing electromagnetic actuator parameters (voltage, current, pulse width) rather than physically changing washer thickness or number. This allows for smooth, continuous adjustment across the full range of motion, resolving the contradiction between precision and continuous adjustability.
2Manufacturing precision
If the mirror position is adjusted by changing washer thickness or number, then adjustment is possible, but the adjustment process requires removing and remounting the mirror
Solution Approach 1:
The patent replaces the mechanical washer replacement process with an electromagnetic actuator system that adjusts mirror position in-situ. The actuator is integrated into the mirror mounting structure, allowing position changes without disassembly. This eliminates the time-consuming remove-and-remount process while maintaining precise adjustment capability.
Solution Approach 2:
The patent transitions from a static adjustment method (fixed washers requiring disassembly) to a dynamic adjustment system where the mirror position can be changed continuously while mounted. The electromagnetic actuator enables real-time position modification, dramatically reducing adjustment time and allowing optimization during actual operation.
3Manufacturing precision
If washers are used for mirror adjustment, then basic positioning is achieved, but fine adjustment while checking projection image is difficult
Solution Approach 1:
The patent replaces the coarse washer-based positioning system with an electromagnetic actuator system that provides both basic positioning and fine adjustment capabilities. The actuator's high resolution control allows for minute position changes while the projection image is being observed, enabling precise optimization that was not achievable with discrete washer adjustments.
Solution Approach 2:
The patent enables continuous adjustment action throughout the entire operation by using electromagnetic actuators that can be adjusted at any time without interruption. Unlike washers that require stopping and disassembly, the actuator system allows continuous fine-tuning of mirror position and angle while checking the projection image, maintaining the useful action of image optimization without interruption.
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 allows for precise and continuous adjustment of the reflection mirror's position and angle while checking a projection image, enhancing the ability to finely adjust the mirror's position and angle without the need for removing and mounting the mirror, thus improving the adjustment process.
Implementation Method 1
a cam member rotatably held by the mirror holding member... the cam member has a cam surface with which a distal end part of the shaft portion comes into contact, and when the cam member rotates, the shaft portion moves in the orthogonal direction
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provided is a mirror holding mechanism capable of finely adjusting the position or angle of a reflection mirror while checking a projection image reflected by a reflection surface of the reflection mirror and projected on a projection surface. A mirror holding mechanism (1) includes: a reflection mirror (2), a mirror holding member (3), and a cam member (9). The mirror holding member (3) has two side surface portions (3a) disposed so as to sandwich the reflection mirror (2) in an X direction. In the side surface portion (3a), a guide hole (3g) through which a shaft portion (10b) protruding from the reflection mirror (2) to an outer side in the X direction is formed so as to pass through the side surface portion (3a). The guide hole (3g) is formed into a long hole a longitudinal direction of which is a Y direction. The cam member (9) is disposed on an outer side of the side surface portion (3a) in the X direction and rotatably held by the side surface portion (3a). On the cam member (9), a cam surface (9e) with which a distal end part of the shaft portion (10b) comes into contact is formed. In the mirror holding mechanism (1), when the cam member (9) rotates, the shaft portion (10b) moves in the Y direction.