Position Detection Apparatus with Visual Feedback for Infrared Alignment
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Solution Overview
Problem
Existing position detection apparatuses face difficulties in easily adjusting the radiation direction of light, particularly when using projection or display surfaces, as the light direction is not easily adjustable and users struggle to visualize or intuitively adjust the invisible infrared light direction.
Innovation Solution
A position detection apparatus comprising a projection unit, a radiation unit, a detection unit, and an output control unit that adjusts the radiation direction of light by projecting marks and providing feedback through visual and auditory cues, allowing users to intuitively adjust the light direction based on the positional relationship between these marks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the radiation direction of light is adjusted by changing the position of the radiation unit, then the radiation direction can be changed, but the position of the radiation unit must be changed which complicates the adjustment process
Solution Approach 1:
The apparatus is divided into separate functional units: the radiation unit for emitting light, the detection unit for detecting reflected light, and the projection unit for displaying visual feedback. This segmentation allows each unit to perform its specific function independently, enabling easy adjustment of radiation direction through the detection unit's feedback mechanism without moving the radiation unit itself.
Solution Approach 2:
The detection unit detects the position of reflected light and provides feedback to the projection unit, which then projects visual marks indicating the current radiation direction and target position. This feedback loop enables users to intuitively adjust the radiation direction by observing the projected marks and aligning the reflected light with the target position, eliminating the need for complex mechanical adjustment mechanisms.
2Reliability
If infrared light is used for position detection, then position detection can be performed, but the invisible nature of infrared light makes it difficult for users to intuitively recognize and adjust the radiation direction
Solution Approach 1:
The projection unit acts as an intermediary that converts the invisible infrared radiation direction into visible visual information. By projecting marks that indicate the current radiation direction and target position, the system mediates between the invisible infrared light and the user's visual perception, enabling intuitive adjustment without compromising the reliability of infrared-based position detection.
Solution Approach 2:
The projection unit displays visual marks with distinct colors or patterns to indicate different states: the current radiation direction, the target position, and alignment status. These color changes provide intuitive visual feedback to users, making it easy to understand and adjust the radiation direction while maintaining the accuracy of infrared detection.
3Ease of operation
If visual feedback marks are projected to indicate radiation direction, then user understanding is improved, but additional projection components are required
Solution Approach 1:
The projection unit is integrated into the existing apparatus, combining the functions of visual feedback provision with the position detection system. By merging the projection capability with the detection and radiation units, the system provides intuitive visual feedback without requiring completely separate projection equipment, thus limiting the increase in device complexity.
Solution Approach 2:
The projection unit serves multiple functions: it displays the current radiation direction, indicates the target position, and provides alignment feedback. This multi-functionality reduces the need for separate components for each feedback function, minimizing the overall device complexity while maximizing user understanding of the radiation direction.
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 easy and intuitive adjustment of the light radiation direction, allowing users to accurately align the light without changing the position of the radiation unit, enhancing usability and visibility of the invisible infrared light.
Implementation Method 1
light obtained by reflection of the light from an indicator operated by a user is imaged to detect the position of the indicator
Data Source
AI summary
A position detection apparatus includes a projection unit that projects an image, a radiation unit that radiates light, a detection unit that detects reflected light of the light radiated from the radiation unit, and an output control unit that performs control for outputting information corresponding to a detection position of the reflected light based on a detection result from the detection unit when a radiation direction of the light radiated from the radiation unit is adjusted.