Projector Auxiliary Positioning Rod for Image Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ultra-short-throw projectors are prone to shifting and re-adjustment difficulties due to lack of effective positioning, leading to image distortion and instability when projecting large images on screens or walls.
Innovation Solution
An auxiliary positioning device with an adjustable positioning rod that abuts against a fixed reference object, allowing for precise marking and rapid repositioning of the projector, ensuring consistent image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If ultra-short-throw projector is placed close to projection screen to save space, then space utilization is improved, but positioning stability deteriorates
Solution Approach 1:
The positioning rod extends in advance to abut against a reference object at a fixed position relative to the projection plane, establishing the projector's position before projection begins. This preliminary positioning action prevents subsequent shifting and maintains stable image projection.
Solution Approach 2:
The positioning rod acts as an intermediary element between the projector and the reference object (such as a wall or screen frame). By abutting against this external reference, the rod provides a stable positional constraint that compensates for the lack of built-in positioning structures in ultra-short-throw projectors.
2Manufacturing precision
If projector position is adjusted frequently to optimize projection, then projection quality is improved, but time consumption increases
Solution Approach 1:
The positioning rod establishes the correct projector position in advance by abutting against the reference object. Once positioned, the projector maintains this position for multiple projection sessions, eliminating the need for frequent adjustments and reducing time consumption.
Solution Approach 2:
The positioning rod enables the projector to self-position automatically by simply extending the rod to abut against the reference object. This self-positioning mechanism eliminates the need for manual alignment and repeated adjustments, saving significant time while maintaining projection quality.
3Device complexity
If projector lacks positioning structure to simplify design, then device complexity is reduced, but positioning precision deteriorates
Solution Approach 1:
The positioning function is extracted from the projector's internal structure and implemented as an external auxiliary positioning device. The positioning rod, connected to the projector shell, extends outward to abut against an external reference object, providing precise positioning without complicating the projector's internal design.
Solution Approach 2:
The positioning rod serves as an external intermediary that provides precise positioning by abutting against environmental reference objects. This approach achieves positioning precision without requiring complex internal positioning structures, maintaining simplicity while improving accuracy.
Data Source
AI summary
A projector includes a shell, a light source, an optical machine, a projection lens and an auxiliary positioning device. The light source is configured to provide illumination beams. The optical engine is configured to modulate the illumination beams based on received image signals to obtain projection beams. The projection lens is configured to project the projection beams on a projection plane for imaging. The auxiliary positioning device is connected to the shell and is configured to locate a position the projector. The auxiliary positioning device includes a positioning rod which includes a first end and a second end opposite to the first end; the first end of the positioning rod is connected to the shell, and the second end of the positioning rod is configured to abut against a reference object that is at a fixed position relative to the projection plane.