Projection Device with Movable Light Guide Assembly
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Solution Overview
Problem
Conventional projection technologies require significant space for installation and lack versatility, as they either require large areas for image projection or are limited to single-function spherical projection, making them inefficient for small-scale or low-frequency use.
Innovation Solution
A projection device with a housing module and a projection module that includes a display screen and a light guide assembly movably disposed on protective walls, allowing for multiple projection modes by adjusting the light guide assembly's position to project images either onto a curved surface or directly out of the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional front projection or rear projection is used, then large screen projection function is achieved, but installation space becomes large
Solution Approach 1:
The projection device integrates two projection modes (first projection mode with light guide assembly for spherical projection, and second projection mode without light guide assembly for direct projection) into a single device, enabling it to function both as a compact spherical projector and as a direct projection device, thus achieving multi-functionality and reducing the need for separate devices
2Area of stationary object
If spherical projection is used, then space occupation is reduced, but projection function becomes limited
Solution Approach 1:
The light guide assembly is designed to be movable between two positions: when moved to the first position, it enables spherical projection mode; when moved to the second position, it enables direct projection mode. This dynamic reconfiguration allows the device to switch between different projection functions while maintaining a compact form factor
Solution Approach 2:
By incorporating the movable light guide assembly, the projection device achieves universal applicability, serving both as a spherical projector for space-saving applications and as a direct projector for large screen projection, thereby eliminating the limitation of single-function spherical projectors
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
The device achieves a smaller usage space and increased utilization rate by providing multiple projection modes, enhancing its functionality beyond conventional spherical projectors.
Implementation Method 1
the optomechanical assembly projects an image light beam to the light guide assembly along a first axis
Implementation Method 2
The light guide assembly projects the image light beam to the display curved surface along a second axis
Data Source
AI summary
A projection device configured to provide multiple projection modes is provided. The projection device includes a housing module and a projection module. The housing module includes a display screen and multiple protective walls. The display screen includes a display curved surface. The projection module includes an optomechanical assembly and a light guide assembly. In a first projection mode, the optomechanical assembly projects an image light beam to the light guide assembly along a first axis. The light guide assembly projects the image light beam to the display curved surface along a second axis, where the first axis and the second axis are not parallel to each other. In a second projection mode, the light guide assembly is moved out of a transmission path of the image light beam, so that the image light beam is directly projected out of the projection device.