Rotating Mirror Assembly for Projector Direction Adjustment
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Solution Overview
Problem
Conventional projectors are inconvenient for users as they require moving the entire device to change the projection direction, limiting flexibility in image placement.
Innovation Solution
A projector with a rotatably connected light reflection assembly featuring a reflective mirror that adjusts the projection direction without moving the projector, utilizing pivotally connected support frames and a magnetic base for stable and adjustable image positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the entire projector is moved to change projection direction, then the projection direction can be changed, but the operation becomes inconvenient and time-consuming
Solution Approach 1:
The projector is divided into two functional parts: the main projector body (housing, light source, lens) and the light reflection assembly (mirror and support frame). The light reflection assembly can be independently adjusted relative to the projector body, allowing projection direction change without moving the entire device. This segmentation enables localized adjustment of the projection path through mirror rotation.
Solution Approach 2:
The light reflection assembly is designed with rotational freedom around the optical axis through pivotally connected support frames. The mirror can dynamically adjust its angle to redirect light while maintaining its position relative to the lens. This dynamic adjustment mechanism allows continuous variation of projection direction without relocating the projector body.
2Adaptability or versatility
If the light reflection assembly is rotatably connected to allow mirror rotation, then projection direction can be adjusted flexibly, but the structural complexity increases
Solution Approach 1:
Multiple functional components are merged into integrated assemblies: the mirror is fixed to the support frame, the lens cover and mounting plate are formed integrally, and the magnetic base combines mounting and rotational support functions. This merging reduces the number of separate parts and simplifies the overall structure while maintaining adjustment capability.
Solution Approach 2:
The support frames serve multiple functions: they provide structural support for the mirror, enable rotational movement, and maintain proper positioning relative to the lens. The magnetic base simultaneously provides detachable attachment and rotational freedom. This multi-functionality reduces the need for separate components for each function.
3Stability of the object's composition
If the mirror surface always faces the lens during rotation, then the projection path remains stable, but the mechanical design becomes more complex
Solution Approach 1:
The light reflection assembly rotates as a unified dynamic system around the optical axis, maintaining the mirror's orientation relative to the lens while changing the projection direction. The pivotal connections allow controlled rotation that preserves the optical relationship between mirror and lens throughout the movement range.
Solution Approach 2:
The support frames act as intermediaries between the mirror and the projector body, providing the rotational mechanism that enables direction change while maintaining proper optical alignment. The magnetic base serves as an intermediary that allows detachable yet stable connection during rotation.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables adjustment of the image position without relocating the projector, enhancing user experience by allowing flexible projection direction changes without moving the device.
Implementation Method 1
a light reflection assembly for adjusting a projection direction of the lens; wherein the light reflection assembly includes a reflective mirror
Implementation Method 2
a housing of the projector body is magnetic, wherein the light reflecting assembly further includes a magnetic member having a magnetic property corresponding to that of the housing, and wherein the magnetic member and the housing cooperate to connect the base to the projector body
Data Source
AI summary
Disclosed is a projector (1), comprising a projector body (10) with a lens (12), and a light reflection assembly (20) for adjusting a projecting direction of the lens (12). The light reflection assembly (20) comprises a reflective mirror (23), and the light reflection assembly (20) is provided to be rotatably connected with the projector body (10). During the rotation, a mirror face of the reflective mirror (23) always faces towards the lens (12), so that the reflective mirror (23) adjusts the angle of the projecting direction between the mirror face and the lens (12) with the rotation of the light reflection assembly (20), so as to adjust the projecting location of the lens (12) by means of the rotation of the reflective mirror (23), such that the projecting direction can be changed without moving the projector (1).