Dynamic Color Temperature Illumination Reducing Eye Accommodation Error
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Solution Overview
Problem
Existing desk lamps maintain a constant color temperature, which can lead to prolonged accommodation errors in the eyes, potentially harming vision over time, as the eyes struggle to adapt to a single light stimulus.
Innovation Solution
An illumination apparatus with a light generation unit capable of producing light with a color temperature that gradually changes from a less-preferred to a preferred temperature, controlled by a processor and digital-to-analog converter, allowing users to switch between different color temperatures to reduce accommodation errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the illumination apparatus uses a constant color temperature, then the device structure is simple and easy to control, but the accommodation error of the eyes increases over prolonged use
Solution Approach 1:
The illumination apparatus dynamically changes the color temperature of light over time instead of maintaining a constant value. The controller adjusts the color temperature between first and second color temperatures, creating a dynamic lighting environment that reduces accommodation error while managing device complexity through systematic control
Solution Approach 2:
The patent changes the color temperature parameter of the light source over time. By varying this physical parameter between two values, the system addresses the harmful effect of constant lighting on eye accommodation while maintaining controllable device operation through parameter modulation
2Object-affected harmful factors
If the illumination apparatus changes color temperature over time, then the accommodation error of the eyes is reduced, but the device complexity increases due to additional control components
Solution Approach 1:
The system implements dynamic color temperature adjustment using a controller that automatically varies the lighting parameter over time. This dynamic approach reduces accommodation error while the automated control mechanism manages the complexity of implementing multiple color temperature settings
Solution Approach 2:
The illumination apparatus applies periodic changes to the color temperature, cycling between first and second color temperatures over time. This periodic action pattern provides a systematic method to reduce accommodation error through regular parameter variation without requiring complex real-time adjustment mechanisms
Data Source
AI summary
The invention provides an illumination apparatus and a method of generating light by the illumination apparatus. The illumination apparatus comprises a light generation unit, configured to generate light having a color temperature in the range of [a first color temperature, a second color temperature]; and a controller, configured to control the light generation unit to generate light having a color temperature changing from a third color temperature to a fourth color temperature over time, wherein the third and the fourth color temperatures are in the range of [the first color temperature, the second color temperature]. The illumination apparatus of the invention could generate light having a changing color temperature over time, for example a color temperature changing from a less preferred color temperature to a preferred color temperature. When the user reads under light having a color temperature changing from a less preferred color temperature to a preferred color temperature, the accommodation error of the eyes of the user can be reduced.