Optical Scanner Mirror Mounting for Thermal Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing optical scanners face challenges in suppressing optical axis fluctuations due to thermal deformation of the housing, which can lead to image deterioration, and require complex structures to maintain mirror alignment.
Innovation Solution
An optical scanner with a housing made of thermoplastic resin, featuring integrally formed supporting members and elastic members that press mirrors against the housing, ensuring stable mirror positioning and minimizing optical axis fluctuations through a simplified structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex structure is used to suppress optical axis fluctuation, then the stability of mirror positioning is improved, but the device complexity increases
Solution Approach 1:
The supporting member and the housing are integrally formed as a single component, eliminating the need for separate mounting structures. This merging reduces the number of parts and assembly steps while maintaining the stability of mirror positioning during thermal deformation
Solution Approach 2:
The elastic member automatically adjusts to thermal expansion and contraction of the housing, maintaining mirror positioning stability through its inherent elasticity without requiring external control mechanisms or complex adjustment systems
2Manufacturing precision
If traditional mirror support structures are used, then optical axis stability is maintained, but the manufacturing complexity increases
Solution Approach 1:
The supporting member is integrally formed with the housing, eliminating separate mounting components and simplifying the manufacturing process. This integral structure ensures consistent optical path positioning while reducing assembly complexity and manufacturing steps
Solution Approach 2:
The elastic member's mechanical properties are optimized to compensate for thermal deformation, allowing the system to maintain optical precision through material selection and elastic parameter design rather than complex mechanical adjustments
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 effectively suppresses optical axis fluctuations caused by thermal deformation, maintaining image quality without the complexity of traditional structures, thereby preventing image deterioration.
Implementation Method 1
a first elastic member that elastically presses the first reflecting surface to press the first mirror against the first supporting member, and a second elastic member that elastically presses the second back surface to press the second mirror against the second supporting member
Data Source
AI summary
A first mirror and a second mirror are disposed on a mounting surface of a housing in an exposure device of an image forming apparatus. A back surface of the first mirror is supported by ribs and the first mirror is pressed against the ribs by elastically pressing a reflecting surface thereof by a spring member. A reflecting surface of the second mirror is supported by ribs and the second mirror is pressed against the ribs by elastically pressing a back surface thereof by a spring member.