Movable Optical Engine Projector for Flexible Screen Sizing
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Solution Overview
Problem
Conventional projector devices require significant space and cannot adjust screen size without moving the projector itself, limiting flexibility in installation and usability.
Innovation Solution
A projector design featuring a movable optical engine housed within a movable housing, driven by a processor-controlled mechanism that allows the optical engine to protrude or retract, enabling adjustable screen size without relocating the projector, and incorporating multiple operation modes for user-defined image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the projector is spaced apart from the screen by a sufficient distance, then the image quality is improved, but the installation space requirement increases
Solution Approach 1:
The optical engine is made movable within the projector housing, allowing it to dynamically adjust its position between retracted (for compact storage) and protruded (for image projection) states. This dynamic configuration enables the system to adapt to different installation spaces while maintaining image quality.
Solution Approach 2:
The projector is divided into separate functional modules: a stationary housing and a movable optical engine. This segmentation allows the optical components to be independently positioned relative to the housing, enabling flexible adjustment of projection distance and screen size without moving the entire projector device.
2Adaptability or versatility
If the projector maintains a short distance from the screen, then the installation flexibility is improved, but the screen size adjustment capability deteriorates
Solution Approach 1:
The optical engine can dynamically change its position within the housing, allowing the system to maintain short projection distances for flexible installation while still being capable of adjusting screen size by modifying the optical path length through the movable components.
Solution Approach 2:
The system changes the optical parameters (focal length, object distance, image distance) by adjusting the position of the optical engine within the housing. This allows the same physical device to achieve different screen sizes and projection distances, maintaining both installation flexibility and screen size adjustability.
3Device complexity
If the optical engine is fixed within the housing, then the device complexity is reduced, but the screen size adjustability deteriorates
Solution Approach 1:
The optical engine is designed with movable components that can be positioned at different locations within the housing. This dynamic positioning capability, achieved through relatively simple mechanical mechanisms, enables screen size adjustment without requiring complex external adjustment systems.
Solution Approach 2:
The movable optical engine serves multiple functions: it can be positioned for different projection distances, adjusted for different screen sizes, and retracted for compact storage. This multi-functionality is achieved through a single integrated positioning mechanism rather than multiple separate systems.
4Stability of the object's composition
If the housing is made stationary, then the structural stability is improved, but the projection distance adjustability deteriorates
Solution Approach 1:
The system separates the stable housing structure from the movable optical engine. The housing maintains structural stability as a stationary frame, while the optical engine can move independently to adjust projection distance. This segmentation allows each component to optimize its function without compromising the other.
Solution Approach 2:
The optical engine is designed with movable components that can dynamically adjust its position relative to the stationary housing. This dynamic capability allows projection distance adjustment while the housing itself remains structurally stable and stationary.
Data Source
AI summary
A projector includes: a main body; an optical engine configured to project an image; a housing on which the optical engine is provided, the housing being movable to an inside area of the main body or to a front surface of the main body; a driving device configured to move the housing; and a processor configured to control the driving device based on an operation mode of the projector.