Dual Rotary Table Projector Positioning Mechanism
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Solution Overview
Problem
Existing liquid crystal display multi-projection apparatuses face challenges in maintaining consistent image projection when replacing image projection units, as changes in unit size, position, or projection angle can disrupt the desired image display on the screen.
Innovation Solution
A position adjustment apparatus with two rotary tables, one for each projector, allows for synchronized rotation in opposite directions, enabling easy adjustment and replacement of projectors without individual adjustment of projection positions, and includes a housing with separate spaces for each projector and independent cooling systems to prevent heat interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If image projection units are replaced in the liquid crystal display multi-projection apparatus, then device versatility is improved, but image projection consistency deteriorates due to changes in unit size, position, or projection angle
Solution Approach 1:
The apparatus divides the projection system into independent modular components (projectors mounted on separate rotary tables), allowing each projector to be independently replaced while maintaining overall system functionality through standardized mounting interfaces
Solution Approach 2:
The rotary tables enable dynamic adjustment of projector parameters (rotation angle and position) to compensate for variations introduced by different projector models, allowing the system to adapt to different units while maintaining consistent image projection
2Manufacturing precision
If individual adjustment mechanisms are provided for each projector, then image projection consistency is improved, but device complexity increases
Solution Approach 1:
The apparatus combines multiple adjustment functions (rotation and positioning) into integrated rotary table assemblies, where each rotary table simultaneously performs both functions through a single coordinated mechanism rather than requiring separate adjustment devices
3Area of stationary object
If projectors are mounted in a confined housing space, then space utilization is improved, but heat dissipation deteriorates due to limited cooling space
Solution Approach 1:
The apparatus utilizes vertical space and three-dimensional arrangement within the housing, positioning projectors and cooling components in multiple spatial dimensions to achieve adequate heat dissipation pathways without increasing the horizontal footprint of the device
Data Source
AI summary
A position adjustment apparatus includes a housing, a first rotary table on which a first projector is placed and which is rotatably supported by the housing about a first rotation axis, and a second rotary table on which a second projector is placed and which is rotatably supported by the housing about a second rotation axis. The housing includes a first opening through which first image light projected from the first projector passes and a second opening through which second image light projected from the second projector passes. A rotation direction of the first rotary table and a rotation direction of the second rotary table are opposite to each other. Rotation of the first rotary table and rotation of the second rotary table are in conjunction with each other. The first rotary table and the second rotary table are configured to be replaceable with respect to the housing.