Integrated Optical Compensation Adjusting Mechanism for Projectors
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Solution Overview
Problem
The existing optical compensation element adjusting mechanism for projectors is complex, leading to high manufacturing costs due to its configuration of multiple members, necessitating a simpler configuration to reduce costs while maintaining effective adjustment capabilities.
Innovation Solution
An optical compensation element adjusting mechanism with an integral adjusting frame that includes a holding portion, fixing portions, and an adjusting portion, allowing for inclination adjustment of the optical compensation element using a virtual line as a rotational axis, enabling simple and precise positioning without the need for multiple components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a compensation element adjusting mechanism is configured with multiple members (frame, holder member, fixing member, sheet metal, lever member), then the adjustment functionality is achieved, but the manufacturing cost increases and the configuration becomes complex
Solution Approach 1:
The patent merges the frame and holder member into a single integrated holder that directly supports the optical compensation element. This consolidation eliminates the need for separate fixing members and sheet metals, reducing the number of components while maintaining the adjustment functionality through the integrated structure's inherent design
2Ease of operation
If a compensation element adjusting mechanism is configured with multiple members (frame, holder member, fixing member, sheet metal, lever member), then the adjustment functionality is achieved, but the manufacturing cost becomes high
Solution Approach 1:
The patent merges the frame and holder member into a single integrated holder, reducing the total number of parts that need to be manufactured, assembled, and inventoried. This consolidation directly reduces manufacturing costs by eliminating multiple discrete components while maintaining full adjustment functionality through the integrated design
3Device complexity
If an integral adjusting frame is used to simplify the configuration, then the manufacturing cost is reduced and configuration is simplified, but the adjustment precision must be maintained
Solution Approach 1:
The patent applies local quality by providing a groove at the specific location where the optical compensation element contacts the holder. This groove features precise dimensional control and surface finish at the critical adjustment interface, ensuring accurate positioning and inclination adjustment while the rest of the integrated holder can be manufactured with standard tolerances
Data Source
AI summary
An optical compensation element adjusting mechanism capable of adjusting an inclination of an optical compensation element with high accuracy and a projector. The mechanism includes an optical compensation element which optically compensates a liquid crystal panel and an adjusting frame which adjusts an angle of the element to the liquid crystal panel. The adjusting frame includes an approximately rectangular holding portion which holds the optical compensation element, a pair of fixing portions which respectively extends from positions, which become a diagonal, of the holding portion in a direction intersecting with the holding portion and which is respectively fixed to a first holding member to which the adjusting frame is attached, and an adjusting portion which is disposed at a position away from the pair of fixing portions and which inclines the optical compensation element by inclining the holding portion around a virtual line connecting the pair of fixing portions.