Projector Guide Image for Image Correction Range
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Solution Overview
Problem
Users of projectors face limitations in recognizing the range within which an input image can be moved, as existing technologies do not provide clear indication of the maximum range of image movement, leading to inconvenience during image correction.
Innovation Solution
A projection method that projects a correction target image along with a guide image showing the maximum range within which the correction target image can be projected, allowing users to visually recognize the movable range and improving convenience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the input image is moved beyond the maximum range of use of the light modulation device, then the user can adjust the image position freely, but a part of the input image is not projected on the projection surface and disappears
Solution Approach 1:
The patent displays a guide image showing the maximum projection range before the user moves the input image. This preliminary visual information allows the user to understand the safe movement boundaries in advance, preventing the input image from being moved beyond the light modulation device's maximum range and ensuring image completeness while maintaining operational freedom
2Ease of operation
If the maximum projection range is not indicated to the user, then the device remains simple, but the user cannot recognize in advance the range within which the input image can be moved
Solution Approach 1:
The patent introduces a guide image as an intermediary visual element that displays the maximum projection range. This guide image acts as a mediator between the complex internal constraints of the light modulation device and the user, providing clear range information without requiring complex device modifications or additional hardware
Solution Approach 2:
The patent creates a visual copy (guide image) that represents the maximum projection range. This graphical representation copies the boundary information in a visually intuitive format, allowing users to understand the projection limits without directly interacting with the complex optical system parameters
Data Source
AI summary
A projection method for a projector includes: projecting, onto a screen, a correction target image that is a target of shape correction; and projecting, onto the screen, a guide image showing a maximum range within which the correction target image can be projected, when the correction target image is projected on the screen.