Projection Apparatus Electronic Optical Shifting Wear Reduction
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Solution Overview
Problem
Existing projection apparatuses face inefficiencies in registering and adjusting the projection range of projection light, particularly in accurately moving and resizing the projection area to match user intentions without causing delays or excessive wear on the optical system.
Innovation Solution
A projection apparatus equipped with a processor that displays an image showing the movement destination of the projection range and uses a combination of electronic and optical shifting mechanisms to efficiently adjust the projection range, allowing for precise control and reduced wear on the optical system.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical shifting is used to move the projection range, then the projection range can be accurately repositioned, but the optical system experiences increased wear and power consumption
Solution Approach 1:
The projection apparatus divides the projection range adjustment into two independent segments: electronic shifting (for fine adjustments within the optical system) and optical shifting (for coarse adjustments of the entire optical system). This segmentation allows each mechanism to operate in its optimal range, reducing unnecessary optical system movements and thereby decreasing wear and power consumption while maintaining positioning accuracy.
Solution Approach 2:
The patent replaces part of the mechanical/optical shifting function with an electronic shifting mechanism that adjusts the projection range by modifying the image signal electronically rather than physically moving optical components. This substitution reduces the frequency and extent of optical system movements, minimizing wear and energy loss while achieving the same repositioning effect.
2Measurement precision
If optical shifting is performed frequently to adjust projection range, then accurate repositioning is achieved, but the response time increases and user experience deteriorates
Solution Approach 1:
By segmenting the adjustment mechanism into electronic and optical components, the system can perform rapid electronic adjustments for minor repositioning needs, reserving slower optical shifting for larger adjustments. This reduces the overall response time and eliminates unnecessary delays caused by frequent optical system movements.
Solution Approach 2:
The electronic shifting mechanism performs preliminary adjustments to the projection range before optical shifting is initiated, or makes final fine-tuning adjustments after optical shifting. This preliminary action minimizes the distance the optical system needs to travel, reducing the time required for optical repositioning and improving overall response speed.
Data Source
AI summary
A projection apparatus includes a projection portion that performs irradiation with projection light, and a moving mechanism that moves a projection range of the projection light. In a state where the projection range is maintained, the projection apparatus displays an image showing a movement destination of the projection range in response to a first operation by the projection portion. The projection apparatus moves the projection range to the movement destination by the moving mechanism.