Uniform Light Generating System with Feedback Control
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Solution Overview
Problem
Existing light generating systems fail to adjust output brightness uniformly and accurately, leading to inconsistent illumination values over time due to luminosity decay of light-generating units.
Innovation Solution
A system comprising a light-generating unit with a brightness control element, a hollow spheroid unit with a reflective element, and a control unit connected to a light-sensing unit, which adjusts and measures luminous flux to achieve uniform illumination values by comparing detected real illumination and power values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a light-generating unit is used to produce light beams, then illumination is provided, but the luminosity decays over time leading to inconsistent illumination values
Solution Approach 1:
The system employs a feedback mechanism where a light-sensing unit detects the actual luminous flux from the light-generating unit, and a control unit compares this detected value with a reference value. Based on this comparison, the control unit adjusts the brightness control element to compensate for luminosity decay, thereby maintaining consistent illumination values over time despite the aging of the light source
Solution Approach 2:
The system changes the parameter of luminous flux dynamically by adjusting the brightness control element based on detected values. This allows the system to adapt to the changing characteristics of the light-generating unit over time, maintaining accurate illumination control even as the light source degrades
2Adaptability or versatility
If brightness control elements are added to adjust luminous flux, then output brightness can be adjusted, but device complexity increases
Solution Approach 1:
The system introduces a brightness control element as an intermediary component between the light-generating unit and the external environment. This intermediary allows precise control of luminous flux by adjusting the transmission characteristics, enabling brightness adjustment without fundamentally changing the light source itself. The control element acts as a mediator that translates control signals into actual brightness changes
3Stability of the object's composition
If light beams are transmitted through multiple units, then uniform illumination is achieved, but light energy loss increases
Solution Approach 1:
The system performs preliminary measurement and calibration by detecting the luminous flux before it enters the integrating sphere. This preliminary action allows the control unit to pre-adjust the brightness control element to compensate for expected energy losses during transmission, thereby maintaining illumination uniformity while minimizing actual energy waste
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 obtain consistent and adjustable illumination values, ensuring that the light-generating unit's luminosity remains effective over time by accurately controlling and measuring the light beam's brightness.
Implementation Method 1
The light-generating unit has a light-emitting element for generating light beams
Implementation Method 2
the hollow spheroid unit has a reflective board arranged in the hollow spheroid unit, and a reflective coating layer is coated on an inner wall of the hollow spheroid unit
Implementation Method 3
The light-sensing unit is used to detect electric power values in the external casing
Data Source
AI summary
A uniform light generating system for adjusting output brightness, including a light-generating unit, a light-transmitting unit, a hollow spheroid unit, a light-sensing unit, and a control unit. The light-generating unit has a light-emitting element for generating light beams and a brightness control element for adjusting the luminous flux of the light beam. The hollow spheroid unit is communicated with the other side of the light-transmitting unit for guiding the light beams into an external casing of the hollow spheroid unit. The light-sensing unit detects electric power values in the external casing. The control unit is electrically connected to the light-generating unit and the light-sensing unit. Thereby a user can obtain a real illumination value via adjusting the illumination values of the light beams that are projected from the hollow spheroid unit.