Rotating Projector Mount for Glare-Free Projection Angles
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Solution Overview
Problem
Existing projectors that project light vertically upward often reflect light onto the eyes of operators nearby, causing glare and discomfort.
Innovation Solution
A projector attachment apparatus with a rotatable fixing part that allows the projector to be positioned in two postures, one horizontal and one rotated 90 degrees, adjusting the projection axis to avoid direct light reflection onto the operator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the projector projects light vertically upward, then the projection structure is simple, but the projection light is easily reflected onto the eyes of operators causing glare
Solution Approach 1:
The patent applies the dynamics principle by making the fixing part rotatable about a rotation axis, allowing the projector to dynamically adjust its projection direction. The fixing part can rotate between a first posture (horizontal second surface) and a second posture (vertical second surface), enabling the system to adapt the projection angle to avoid reflecting light onto operators while maintaining a relatively simple overall structure.
2Adaptability or versatility
If the projection axis is tilted downward in the first posture, then the projection direction can be adjusted, but the operator may still be exposed to reflected light
Solution Approach 1:
The patent applies the dimensionality change principle by introducing a rotation dimension about a vertical rotation axis. The fixing part can rotate 90 degrees from a horizontal orientation to a vertical orientation, changing the projection direction from a downward tilt to an upward tilt. This dimensional rotation provides an additional degree of freedom to control the projection path and avoid operator exposure to reflected light.
3Object-affected harmful factors
If the fixing part is made rotatable to adjust projection direction, then operator comfort is improved, but the device complexity increases
Solution Approach 1:
The patent applies the universality principle by designing the fixing part to serve multiple functions: it both secures the projector in place and provides rotational adjustment capability. The rotation mechanism allows the same fixing part to accommodate different projection scenarios (horizontal and vertical postures), eliminating the need for separate adjustment mechanisms and reducing overall device complexity.
Data Source
AI summary
A projector attachment apparatus includes a fixing part including a first surface and a second surface that is an opposite surface of the first surface, and a rotating shaft part configured to support the fixing part to be rotatable from a first posture in which the second surface is horizontal to a second posture that is at a rotation angle different from a rotation angle in the first posture. The second surface is configured to be attached a projector. The second surface facing a vertical downward direction in the first posture, an axial direction of a projection axis of the projector tilts downward in a vertical direction with respect to a horizontal direction in the first posture, the second posture of the fixing part is a position rotated 90 degrees with respect to the horizontal direction in the second posture, and the axial direction of the projection axis tilts further upward in the vertical direction than a horizontal in the second posture.