Adaptive Task Light with Ambient Sensor Control
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Solution Overview
Problem
Conventional task lights often provide excessive lighting, wasting energy due to lack of adaptive control based on ambient conditions, and fail to efficiently adjust light intensity according to user needs and ambient light levels.
Innovation Solution
An automatically adjusting task light system that includes a light source, a housing, a light directing member, an ambient light sensor, and a control circuit to compare ambient light intensity with user-set requirements, adjusting power supply to maintain optimal light levels, optionally featuring occupancy sensors for energy-saving deactivation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If conventional task lights provide constant high intensity lighting, then user needs are met, but energy is wasted due to lack of adaptive control
Solution Approach 1:
The patent implements a feedback control system where an ambient light sensor continuously measures the ambient light level, and a control circuit adjusts the light source intensity based on this feedback to maintain the desired total light level at the work surface, thereby reducing energy consumption while meeting user needs
Solution Approach 2:
The patent makes the lighting system dynamic by enabling continuous adjustment of light intensity based on ambient conditions and user preferences, transitioning from static constant lighting to adaptive dynamic lighting that responds to changing environmental factors
2Loss of energy
If task lights provide fixed intensity lighting, then device complexity is low, but inability to adjust to ambient conditions causes energy waste
Solution Approach 1:
The patent enables the lighting system to self-regulate by automatically sensing ambient light levels and adjusting its own output accordingly, eliminating the need for manual intervention while minimizing energy waste through intelligent self-control
Solution Approach 2:
The patent changes the operating parameters of the light source dynamically by adjusting current or voltage based on ambient light sensor readings, allowing the system to optimize energy consumption by varying light intensity according to actual environmental conditions
3Adaptability or versatility
If ambient light sensor and control circuit are added, then adaptive lighting is achieved, but device complexity increases
Solution Approach 1:
The patent integrates multiple functions into unified components where the control circuit performs both sensing coordination and light regulation, and the housing structure serves both protective and mounting functions, reducing overall system complexity through functional integration
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 system efficiently provides the necessary light by minimizing energy consumption, ensuring the total light intensity at the work surface equals the user's desired level, regardless of ambient conditions, and automatically turns off when not in use, optimizing energy usage and user comfort.
Implementation Method 1
an ambient light sensor; and a control circuit that compares the intensity of ambient light in the area surrounding the work surface
Implementation Method 2
a light source; a housing adapted to receive the light source
Data Source
AI summary
A task light that includes a plurality of light emitting diodes (LED's) adapted for providing a variable intensity of emitted light; a light directing member for directing light from the LED's onto a work surface; a control logic, electrically connected to a light intensity selector, an ambient light sensor, and the plurality of LED's and wherein the control logic compares the intensity of ambient light in the area surrounding the work surface with the desired intensity of light to be provided at the work surface and adjusts the supply of electrical power to the LED's so that the total of the variable intensity of emitted light and the intensity of ambient light in the area surrounding the work surface is approximately equal to the desired intensity of light to be provided at the work surface.