Projector Mount Rotation and Lift for Precise Image Alignment
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Solution Overview
Problem
Existing projection image adjustment systems face challenges in adjusting projection images onto surfaces, particularly in applications like marking work, where maintaining the distance and angle of the projection image relative to a reference point is difficult due to the complexity of adjusting the height and rotation of the projector.
Innovation Solution
A projection image adjustment apparatus with a carriage system that includes an elevating mechanism, tilt adjustment mechanism, and swivel mechanism, allowing precise control over the projector's position, height, and projection angle, ensuring the projector's center of gravity remains aligned with the support points for stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the projector is adjusted to project onto different surfaces or positions, then the projection image can be adapted to various applications, but the distance and angle relative to the reference point change making adjustment difficult
Solution Approach 1:
The adjustment apparatus is divided into multiple independent functional modules: a mover that adjusts the vertical position of the base, and a rotator that adjusts the tilt angle of the projection apparatus. This segmentation allows each module to handle one degree of freedom independently, making the overall adjustment process simpler and more controllable while maintaining high adaptability to different projection surfaces and positions.
2Adaptability or versatility
If the projection apparatus is rotated to change projection angle, then different projection angles can be achieved, but the position of the projection apparatus changes significantly
Solution Approach 1:
The system separates position adjustment and angle adjustment into independent functions. The mover adjusts the vertical position of the base without affecting the projection angle, while the rotator adjusts the tilt angle independently. This segmentation decouples the two parameters, allowing precise control of the projection angle without significant position drift, thereby resolving the contradiction between angle adjustability and position control precision.
3Manufacturing precision
If multiple adjustment mechanisms are added to control position and angle independently, then adjustment precision is improved, but device complexity increases
Solution Approach 1:
The adjustment apparatus is segmented into two simple, independent modules: a mover for vertical position adjustment and a rotator for tilt angle adjustment. Each module has a single function and can be implemented with straightforward mechanical structures. This segmentation achieves precise control of both position and angle while keeping each individual component simple, thereby improving adjustment precision without excessively increasing overall device complexity.
Data Source
AI summary
A projection image adjustment apparatus includes a base attached to a projection apparatus to project a light in a projection direction; a mover to move the base in a movement direction; and a rotator including a mount to mount the base attached to the projection apparatus; and an imaginary rotation axis perpendicular to a plane including the movement direction and the projection direction. The mount is rotatable about the imaginary rotation axis. The imaginary rotation axis passes through a region of the projection apparatus mounted on the mount via the base.