Eyewear with Dynamic Light Transmittance for Visibility
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Solution Overview
Problem
Conventional polarized eyewear adjusts light intensity poorly, causing discomfort in strong light environments and excessive darkness in low light environments, making it difficult for users to clearly see their surroundings.
Innovation Solution
The eyewear incorporates a transparent display screen, a camera device, and a light intensity sensor to detect ambient light, adjust transmittance, and acquire and enhance environment images for clear display, ensuring visibility in both strong and dark light conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If polarized eyewear is used to reduce light intensity in strong light environments, then eye fatigue and damage are reduced, but visibility in dark light environments deteriorates
Solution Approach 1:
The patent employs a liquid crystal lens that can dynamically change its light transmittance based on ambient light conditions. The lens transitions from a high-transmittance state in dark environments to a low-transmittance state in bright environments, enabling adaptive visibility protection. This dynamic adjustment resolves the contradiction by making the optical properties changeable rather than fixed.
Solution Approach 2:
The invention changes the light transmittance parameter of the optical lens based on detected ambient light intensity. When ambient light is strong, the lens transmittance is reduced to protect eyes; when ambient light is weak, transmittance is increased to maintain visibility. This parameter adjustment directly addresses the contradiction between protection and visibility.
2Ease of manufacture
If fixed light transmittance is used in polarized eyewear, then manufacturing simplicity is maintained, but adaptability to different light environments deteriorates
Solution Approach 1:
The patent introduces a liquid crystal lens that can dynamically adjust its optical properties based on ambient light conditions. The lens transitions between different transmittance states (high for dark environments, low for bright environments) to provide adaptability. This dynamic capability is integrated into the eyewear structure with a controller that automatically adjusts the lens state, resolving the contradiction between manufacturing simplicity and environmental adaptability.
3Object-affected harmful factors
If light transmittance is reduced to protect eyes from strong light, then harmful light exposure is reduced, but ambient visibility deteriorates
Solution Approach 1:
The liquid crystal lens dynamically adjusts its light transmittance based on real-time ambient light detection. In bright conditions, it reduces transmittance to protect eyes while maintaining sufficient visibility. In dark conditions, it increases transmittance to maximize visibility. This dynamic adjustment resolves the contradiction between protection and information loss.
Solution Approach 2:
The invention changes the light transmittance parameter of the lens according to ambient light intensity levels. When ambient light is strong, transmittance is reduced to minimize harmful exposure while preserving visibility. When ambient light is weak, transmittance is increased to prevent information loss. This parameter modulation directly addresses the contradiction.
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 clearly see their surroundings in both strong and dark light environments by dynamically adjusting light transmittance and enhancing images captured by the camera device, reducing eye fatigue and damage from strong light.
Implementation Method 1
the lens is a liquid crystal lens; adjusting the light transmittance of the optic includes: controlling the lens to change light transmittance in a plurality of states according to a control signal
Data Source
AI summary
The present disclosure relates to an eyewear and a control method thereof. The eyewear includes an optic, a camera device and a frame; wherein the optic and the camera device are respectively located on the frame; and the optic is a transparent display screen. The control method of the eyewear includes: detecting a light intensity of ambient light; obtaining a current light intensity of transmitted light generated after the ambient light passes through the optic, based on the light intensity of the ambient light and current light transmittance of the eyewear; adjusting the light transmittance of the optic; starting the camera device to acquire an environment image; performing enhancement processing on the environment image to obtain an enhanced environment image; and controlling the optic to display according to the enhanced environment image.