Blind-Spot Optical Reflector Layout to Reduce Binocular Disparity
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Solution Overview
Problem
Existing optical devices that use semi-transparent mirrors and reflection mirrors to reveal blind spot areas suffer from visibility deterioration due to the reflection of external light by light-shielding plates, causing binocular disparity and obscuring the outdoor view.
Innovation Solution
An optical device comprising a first reflector, a second reflector, and a light shield with light-shielding plates arranged horizontally, where the first reflector is tilted and positioned between the second reflector and the light shield, allowing light from blind spots to be reflected and transmitted while blocking external light reflections with the light shield's plates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If light-shielding plates are arranged vertically to block external light reflections, then external light blocking is improved, but binocular disparity occurs and outdoor view visibility deteriorates
Solution Approach 1:
The light-shielding plates are arranged horizontally instead of vertically, creating an asymmetric configuration that differently affects left and right eye light paths. This horizontal arrangement allows external light to be blocked while minimizing the binocular disparity that would occur with vertical arrangement, thereby maintaining outdoor view visibility.
Solution Approach 2:
The light-shielding plates are positioned in the horizontal dimension rather than the vertical dimension. By changing the orientation from vertical to horizontal, the system blocks external light reflections while reducing the impact on binocular vision, as the horizontal arrangement creates less disparity between left and right eye perspectives.
2Area of stationary object
If the first reflector is positioned close to the obstacle to maximize blind spot coverage, then blind spot area coverage is improved, but external light interference increases
Solution Approach 1:
The light-shielding plates serve as an intermediary element positioned between the first reflector and the external environment. These plates mediate the interaction by blocking external light from reaching the first reflector's front surface, thereby reducing external light interference while allowing the reflector to remain positioned for maximum blind spot coverage.
Solution Approach 2:
The light shield is segmented into multiple light-shielding plates arranged horizontally. This segmentation allows selective blocking of external light paths while maintaining the optical functionality of the first reflector for blind spot coverage, effectively separating the light blocking function from the reflection function.
3Illumination intensity
If the semi-transparent mirror reflects more light from blind spots, then blind spot visibility is improved, but external light reflection increases causing glare
Solution Approach 1:
The light-shielding plates perform preliminary anti-action by blocking external light before it can reach the first reflector's front surface and cause harmful reflections. By preventing external light from incident on the reflector, the system maintains high blind spot visibility without generating glare from external light reflections.
Solution Approach 2:
The light-shielding plates convert the potential harmful effect of external light into a beneficial configuration where the horizontal arrangement of plates blocks external light while minimizing binocular disparity. This transforms what would be a harmful reflection source into a controlled optical path management system.
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
This configuration reduces visibility deterioration by blocking external light reflections and minimizing binocular disparity, enabling clear visualization of the outdoor view in blind spots.
Implementation Method 1
The first reflector reflects a part of light and transmits another part of the light
Implementation Method 2
The first reflector reflects a part of light and transmits another part of the light
Implementation Method 3
The second reflector has a reflective surface that reflects light incident from the first reflector toward the first reflector
Implementation Method 4
The light shield blocks external light incident on and reflected by the front surface of the first reflector
Data Source
AI summary
An optical device introduces light from an outdoor view in a blind spot area hidden by an obstacle. The optical device includes a first reflector that reflects a part of light and transmits another part of the light, and a second reflector placed between a back surface of the first reflector and the obstacle and apart from the first reflector. The second reflector has a reflective surface that reflects light incident from the first reflector toward the first reflector. A light shield is placed at a front surface of the first reflector to block external light incident on and reflected from the front surface of the first reflector. The light shield includes light-shielding plates arranged at an interval in a vertical direction such that each light-shielding plate is horizontal. The first reflector is parallel to the reflective surface of the second reflector and tilted from a vertical axis.