Adjustable Short-Throw Projector Mounting for Whiteboard Focus
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Solution Overview
Problem
Conventional short-throw projector mounting systems lack adjustability, which compromises image quality when an interactive whiteboard is mounted over an existing structure, as they cannot account for the varying distance of the whiteboard from the wall, leading to improperly focused images.
Innovation Solution
A mounting system with adjustable brackets that allow the projector to be positioned at the correct distance from the interactive whiteboard, featuring a first projector mount bracket with a support hole and a second bracket with overlapping slots and a fastener for precise adjustment, ensuring the projector maintains the required distance and focus.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the projector is positioned close to the screen to reduce interference with the audience, then shadow effects and audience interference are reduced, but the projected image becomes distorted and out of focus
Solution Approach 1:
The mounting arm incorporates adjustable components that allow the projector's position to be dynamically modified. The arm can be extended or repositioned to achieve the optimal distance from the screen, enabling the system to adapt between close positioning (reducing shadows) and appropriate focusing distance (maintaining image quality).
Solution Approach 2:
The system allows changing the key parameter of projector-to-screen distance through the adjustable mounting mechanism. By modifying this distance parameter, the system resolves the conflict between needing to be close (to avoid shadows) and needing to be at a specific distance (for proper focus).
2Manufacturing precision
If the mounting arm has a fixed length to ensure proper image focus, then image quality is maintained, but the system cannot adapt when the interactive white board is mounted over existing structures at varying distances from the wall
Solution Approach 1:
The mounting arm transitions from a fixed-length design to a dynamic, adjustable-length design. This allows the arm to be extended or repositioned to compensate for variations in white board mounting distances, maintaining proper projector-to-screen distance regardless of the white board's position relative to the wall.
Solution Approach 2:
The adjustable mounting arm serves multiple functions: it provides stable support for the projector, allows positioning at various distances from the wall, and maintains the correct projector-to-screen distance. This universal design accommodates different white board mounting scenarios while preserving image quality.
3Reliability
If the projector is positioned between the user and the screen, then the projected image is visible, but the projector interferes with the audience's view and causes operator discomfort
Solution Approach 1:
The adjustable mounting arm enables the projector to be positioned in three-dimensional space at an optimized location. By adjusting the arm's extension and angle, the projector can be placed in a position that maintains image visibility while reducing direct interference with the audience's viewing path and minimizing operator discomfort from intense light exposure.
Data Source
AI summary
A short-throw projector and Interactive White Board (IWB) mounting system is presented. The mounting system includes a pair of board mounting brackets, such that a section of the board mounting bracket is positionable a predetermined distance from a mounting surface. The mounting system further includes projector mount bracket wherein a portion of the projector mount bracket is also positionable a predetermined distance from a mounting surface such that a desired distance is maintained between the projector and the IWB when the system is installed over an existing structure.