Projection Glasses Hidden-Image Switching for Hazard Awareness
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Solution Overview
Problem
Existing projection glasses, such as augmented and mixed reality glasses, interfere with the user's immediate response to unexpected events due to the user's focus on projected images, necessitating a system that prevents interference without pausing the projection.
Innovation Solution
A glasses projection control system that includes a CPU, projection mechanism, lens module, and detection system to switch between unfolded and hidden images based on external detection, using a computing unit to send signals to the CPU for image or sound input, and a masking control system with a photochromic or electrochromic layer to adjust transparency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the projection image is displayed continuously, then the user can view the projected content without interruption, but the user's attention is focused on the image and cannot respond to unexpected events in the real world
Solution Approach 1:
The patent implements dynamic switching between unfolded image mode (for normal viewing) and hidden image mode (for safety). The detection system continuously monitors the environment and dynamically adjusts the image projection state based on detected events, allowing the system to adapt between continuous display and safety-aware modes without manual intervention
Solution Approach 2:
The patent employs a feedback mechanism where the detection system monitors environmental conditions and user behavior, and the computing unit processes this information to determine when to switch between unfolded and hidden images. This closed-loop feedback ensures the projection system responds appropriately to real-world conditions while maintaining continuous operation
2Ease of operation
If the projection is paused to respond to external events, then the user can communicate with the outside world, but the projected content is interrupted and user convenience is reduced
Solution Approach 1:
The patent uses periodic action by implementing rapid switching between unfolded and hidden image states. Instead of prolonged pauses, the system briefly transitions to hidden images during detected events and quickly returns to unfolded mode, creating periodic cycles that maintain both safety awareness and projection continuity
Solution Approach 2:
The patent changes the parameter of image visibility by switching between unfolded (fully visible) and hidden (partially obscured) states. This parameter change allows the system to modulate the projection's interaction with the real world, enabling communication during events while preserving overall projection continuity
3Illumination intensity
If the unfolded image is displayed, then the user can view the projected content clearly, but the image occupies the center position and blocks the user's view of the real world
Solution Approach 1:
The patent inverts the normal projection approach by switching between two modes: unfolded images that provide clear viewing but block the real world, and hidden images that obscure the projection to allow real-world visibility. This inversion allows the system to alternate between optimal viewing conditions and optimal situational awareness
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 users to communicate with the outside world without pausing projections by switching to hidden images when detected, ensuring uninterrupted interaction.
Implementation Method 1
a lens module used to refract the first or second beam of light, so that the first or second beam of light is projected onto a lens
Implementation Method 2
a masking control system with a photochromic or electrochromic layer to adjust transparency
Implementation Method 3
a masking control system with a photochromic or electrochromic layer to adjust transparency
Data Source
AI summary
A glasses projection control system includes: a CPU for outputting a first and a second projection information; a projection mechanism connected to the CPU for outputting a first and a second beams of light; a lens module used to refract the beams of light, when the first beam of light is projected onto the lens, a unfolded image is formed, when the second beam of light is projected onto the lens, it forms a hidden image which is smaller than the unfolded image, and the unfolded image is located in the center of the lens than the hidden image; and a detection system including an information acquisition unit and a computing unit, the information acquisition unit captures image or sound information, when determining that a person or object enters the detection range, the computing unit sends covert signal to the CPU to make it output the second projection information.