Visual Presenter Camera Lens Mode Switching Mechanism
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Solution Overview
Problem
Conventional visual presenters are cumbersome and costly, making it difficult to distribute and operate, especially for young students, as they require complex hardware or software solutions to switch between learner and study material photographing modes, leading to distractions and decreased academic performance during online lectures.
Innovation Solution
A visual presenter with a detachable photographing mode switching module that includes a rotating body, reflective member, angle control body, and magnetic system, allowing easy switching between learner and study material photographing modes without manipulating the head part, ensuring correct image orientation and simplified operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a hardware method of rotating the head portion by 180° is used to photograph the front side, then the face image is correctly displayed, but the device structure becomes complex and costly
Solution Approach 1:
Instead of rotating the head portion to photograph the front side, the patent inverts the image processing approach. The camera continues to photograph from the original position, but the captured image is vertically inverted through software processing to achieve correct display orientation, thereby avoiding complex mechanical rotation structures
Solution Approach 2:
The patent replaces the mechanical rotation system with a software-based image processing system. Instead of physically rotating the camera module to change photographing direction, the system uses image inversion algorithms to achieve the same visual effect, eliminating mechanical complexity
2Reliability
If a software method of vertically inverting the output image is used to photograph the front side, then the face image is correctly displayed, but additional software programming is required increasing device complexity
Solution Approach 1:
The patent implements self-service by making the image inversion automatically triggered by the photographing mode switching mechanism. When the user switches between front and back photographing modes, the system automatically applies the appropriate image inversion without requiring separate software control programs, reducing overall system complexity
3Adaptability or versatility
If the head portion is rotated to switch between learner and study material photographing modes, then the photographing direction is changed, but the operation becomes complex for young students
Solution Approach 1:
The patent segments the photographing mode switching function into two independent components: a rotatable body for selecting modes and a reflective member for achieving the actual switching effect. This segmentation allows the user to simply rotate the body without manipulating the entire head portion, making operation simpler for young students while maintaining mode flexibility
4Ease of operation
If a detachable photographing mode switching module is added to a conventional visual presenter, then mode switching is facilitated, but the device structure becomes more complex
Solution Approach 1:
The patent implements nesting by placing the reflective member on the rotatable body, which itself is nested within the existing camera module structure. The rotatable body contains the reflective member, and both are integrated into the conventional visual presenter framework. This nested structure allows easy mode switching while minimizing the increase in overall device complexity
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 solution eliminates the need for separate software and complex device structures, enabling easy operation by young students, preventing image inversion, and securely fixing the rotating body in each mode with minimal force, thus enhancing interaction and academic engagement during online lectures.
Implementation Method 1
a magnetic member configured to fix the rotating body at the study material photographing mode position when contacting the magnet
Implementation Method 2
a reflective member disposed on a bottom surface of the rotating body
Data Source
AI summary
Disclosed herein is provided is a visual presenter having a head structure capable of changing a photographing direction, the visual presenter including a base fixed to a floor by applying weight to prevent the presenter from falling down, a head part having one end provided with a camera lens facing the floor, a support part connecting the head part and the base and extending upward from the base to position the head part at a height of a learner's face, and a photographing mode switching module disposed adjacent to the camera lens and configured to switch between a learner photographing mode and a study material photographing mode without requiring manipulation of the head part.