Combined Illumination Optical Communication Device
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Solution Overview
Problem
Existing visible light-based data transmission technologies, such as LiFi, face challenges in modifying the characteristics of an information-bearing light beam without significantly impacting the illuminating capacity of devices, especially when the light beam is oriented and concentrated on a specific point.
Innovation Solution
An illuminating device with a deck-mounted light sources, featuring a central zone for data transmission and a peripheral zone for conventional illumination, utilizing convergent and divergent lenses to produce beams of different characteristics, allowing for adjustable beam angles and independent control of data transmission and ambient lighting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the light beam is oriented and concentrated on a particular point using a lens-based device, then data transmission to a specific location is optimized, but the ambient lighting capacity of the luminary is greatly decreased
Solution Approach 1:
The luminary is divided into multiple light sources arranged in different zones (central zone and peripheral zone). The central light sources are equipped with lenses for focused data transmission, while the peripheral light sources provide ambient illumination without lenses, maintaining overall lighting capacity while enabling precise directional communication.
Solution Approach 2:
Different parts of the luminary have different optical properties. The central zone light sources have lenses for focused beam generation, while peripheral zone light sources have no lenses for diffuse illumination. This local differentiation allows simultaneous optimization of both data transmission precision and ambient lighting capacity.
2Device complexity
If a single light source is used for both illumination and data transmission, then device complexity is reduced, but the ability to independently control beam characteristics and ambient lighting is compromised
Solution Approach 1:
The luminary is segmented into multiple light sources with different functions. Central light sources are dedicated to data transmission with lenses, while peripheral light sources are dedicated to illumination without lenses. This segmentation enables independent control of beam characteristics and ambient lighting while maintaining a relatively simple overall device structure.
Solution Approach 2:
The luminary system performs multiple functions simultaneously: ambient illumination from peripheral sources and directional data transmission from central sources. The deck structure supports both illuminated and non-illuminated zones, providing a universal platform that handles both lighting and communication tasks.
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 satisfactory ambient lighting while ensuring optimal data transfer to a specific location by producing a narrow data transmission beam and a wider illuminating beam, without compromising the illuminating capacity of the device.
Implementation Method 1
a first fixed convergent lens (101) associated with said central light source (102), said lens (101) being positioned so as to capture light issued from said light source (102) and form a light beam
Implementation Method 2
the lenses are thus positioned so as to capture light issued from light sources and form a light beam the characteristics of which depend on the lenses used
Implementation Method 3
A first element adapted to the central zone including a first set of divergent lenses, each of the lenses being arranged on the axis of a light source of the central zone
Data Source
AI summary
The invention relates to an illuminating device including a plurality of light sources mounted on a deck, the device being such that it includes a first set of light sources placed in a central zone of the deck and a second set of light sources placed in a peripheral zone of the deck, the light sources of one of the sets each being suitable for transmitting data by modulation of visible light, the light sources of at least one of the sets being associated with at least one fixed convergent first lens positioned on the axis of said sources.