Illumination Thermal Control for Continuous Light Emission
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Solution Overview
Problem
Existing illumination apparatuses fail to effectively manage temperature rise near the light source during operations such as multi-light emission and flat light emission, leading to potential shutdown due to excessive heat, particularly in image capturing scenarios.
Innovation Solution
The illumination apparatus includes a processor that calculates control temperatures for a light source and a second target portion, controlling light emission operations based on heat generation to prevent excessive temperature rise, utilizing a cooling unit to manage heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of moving object
If the light source continuously emits light for image capturing operations, then the illumination intensity and duration are improved, but the temperature near the light source rises excessively causing shutdown
Solution Approach 1:
The patent divides temperature control into two separate systems: one for the light source (discharge tube) and one for the optical panel. This segmentation allows independent control strategies for each component, enabling continuous operation by managing heat generation at the source separately from heat dissipation at the panel, thus resolving the contradiction between continuous emission and temperature control.
Solution Approach 2:
The patent calculates predicted temperatures in advance before actual temperature thresholds are reached. By predicting future temperature states based on light emission patterns and thermal characteristics, the system can proactively adjust emission intervals or cooling power, preventing excessive temperature rise that would cause shutdown while maintaining continuous operation capability.
2Temperature
If cooling power is increased to reduce optical panel temperature, then the panel temperature control is improved, but the overall system complexity and energy consumption increase
Solution Approach 1:
The patent implements a feedback control system where predicted temperatures of both the light source and optical panel are continuously monitored. The cooling unit's power is dynamically adjusted based on the predicted panel temperature, creating a closed-loop control system that automatically maintains optimal temperatures without requiring complex manual intervention or overly sophisticated control mechanisms.
3Temperature
If light emission intervals are extended to reduce heat generation, then the temperature rise is reduced, but the productivity and image capturing efficiency decrease
Solution Approach 1:
The patent dynamically adjusts light emission intervals based on real-time temperature conditions and predicted thermal states. Rather than using fixed intervals, the system adapts the emission timing to maintain temperatures within safe ranges while maximizing the number of light emission cycles, thereby preserving image capturing efficiency without sacrificing temperature control.
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
Effectively reduces temperature rise in both the light source and optical panel, ensuring continuous operation without shutdown, even during prolonged light emission, by dynamically adjusting light emission intervals and cooling efforts.
Implementation Method 1
based on heat generated by the light emission operation of the light source
Implementation Method 2
controls the operation output of a cooling unit that cools the optical panel
Data Source
AI summary
An illumination apparatus includes a first target portion including a light source, a second target portion different from the light source, and a processor configured to function as a light emission control unit, a calculation unit, and a control unit. The light emission control unit is configured to control a light emission operation of the light source. The calculation unit is configured to, based on heat generated by the light emission operation of the light source, calculate a first control temperature and a second control temperature. The control unit is configured to control the light emission operation. The calculation unit calculates the first control temperature based on a first influence degree of the heat generated by the light emission operation and calculates the second control temperature based on a second influence degree of the heat generated by the light emission operation different from the first influence degree.