Optical Apparatus Dynamic Angle Adjustment for Cost Reduction
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Solution Overview
Problem
Ultra-short-throw projectors face high manufacturing costs due to the need for precise optical components, leading to poor market competitiveness and image resolution issues when cost-reducing measures compromise precision.
Innovation Solution
An optical apparatus with a support stand, optical module, and reflective module, featuring first and second adjusting units that dynamically adjust the inclination and swinging angles of the reflective module, using a metal sheet or casting member with a base and back frame, and screws and washers to maintain precision while reducing production costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high precision casting members are used to carry and fix optical components, then manufacturing precision is improved, but manufacturing cost increases
Solution Approach 1:
The patent applies the Dynamics principle by replacing static, high-precision casting members with a dynamic adjustment system. The support stand uses adjustable components (screws, washers, connectors) that allow the reflective module's inclination and swinging angles to be tuned during assembly and operation. This dynamic approach compensates for lower manufacturing precision in the support stand itself, achieving the required optical precision through adjustment rather than through expensive high-precision manufacturing of the casting member.
2Ease of manufacture
If cost-reducing measures are taken by replacing casting members with alternative approaches, then manufacturing cost is reduced, but manufacturing precision deteriorates
Solution Approach 1:
The patent uses the Dynamics principle to enable post-manufacturing adjustment of the support stand's geometry. By incorporating adjustable mechanisms (first adjusting unit with screw and washer for inclination angle, second adjusting unit with screw and connector for swinging angle), the system compensates for the lower inherent precision of the simplified support stand structure, achieving the required optical precision through dynamic tuning rather than relying solely on manufacturing precision.
Solution Approach 2:
The patent applies the Parameter changes principle by allowing the geometric parameters of the support stand (inclination angle and swinging angle) to be varied and optimized after manufacturing. The adjustable units enable these parameters to be changed to achieve the precise optical alignment required, compensating for the lower manufacturing precision of the cost-reduced support stand components.
3Measurement precision
If the inclination angle and swinging angle are dynamically adjusted, then image resolution is improved, but device complexity increases
Solution Approach 1:
The patent applies the Segmentation principle by dividing the adjustment function into two independent, simple units: the first adjusting unit (screw and washer) for inclination angle and the second adjusting unit (screw and connector) for swinging angle. Each unit handles a specific adjustment task with simple, discrete components rather than a complex integrated mechanism, reducing overall device complexity while achieving the required image resolution through coordinated adjustment of both units.
Data Source
AI summary
An optical apparatus includes a support stand, an optical module, a reflective module, at least a first adjusting unit and at least a second adjusting unit. The support stand has a base and a back frame. The back frame is connected with the base and formed an inclination angle with the base. The optical module is disposed on the base. The reflective module is disposed on the back frame. The first adjusting unit is connected with the back frame and the base. The first adjusting unit moves the back frame so as to adjust the inclination angle. The second adjusting unit is disposed at the back frame and contacts against the reflective module. The second adjusting unit moves the reflective module so as to adjust a swinging angle of the reflective module.