Drive Device Light Emitting Sections Heat Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In distance measurement apparatuses with multiple light emitting sections, it is challenging to ensure appropriate light emission and manage heat generation, particularly when one light emitting section is non-emitting while another section emits light during its non-emitting period, affecting the irradiation of the target object and the performance of the light emitting section.
Innovation Solution
A drive device is configured to manage light emitting periods and non-emitting periods for each light emitting section, allowing a second light emitting section to emit during the non-emitting period of a first section, ensuring appropriate light emission and reducing heat generation by adjusting the number and positioning of light emitting sections during these periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If another light emitting section emits light during the light non-emitting period of one light emitting section, then the target object can be continuously irradiated with light, but heat generation in the light emitting section increases
Solution Approach 1:
The light emitting sections are divided into multiple independent sections that can operate independently of each other. When one section is in its light non-emitting period, another section can emit light to maintain continuous irradiation. This segmentation allows the system to distribute the thermal load across multiple sections while maintaining continuous optical output.
Solution Approach 2:
Each light emitting section operates in periodic cycles of light emitting periods followed by light non-emitting periods. By coordinating these periodic operations across multiple sections, the system ensures that at least one section is always emitting light while allowing individual sections to have cooling periods, thus managing heat generation while maintaining continuous illumination.
2Ease of operation
If light emitting sections are uniformly handled, then the control is simplified, but the adaptability to different situations and heat management is reduced
Solution Approach 1:
The control system dynamically adjusts which light emitting section emits light during each period based on the operational state and thermal conditions of individual sections. This dynamic control allows the system to adapt to different situations and optimize both light emission and heat management while maintaining relatively simple control logic through automated decision-making.
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
This configuration ensures optimal light emission for the target object and effectively manages heat generation, improving the accuracy and efficiency of distance measurement while reducing the impact of heat-related issues on light output and section performance.
Implementation Method 1
a light emitting device including a plurality of light emitting sections to emit light such that each of the light emitting sections has a predetermined plurality of light emitting periods and a light non-emitting period following each of the light emitting periods
Implementation Method 2
acquires distance data to a target object based on light that is projected from the light emitting unit and reflected by the target object
Data Source
AI summary
A drive device is configured to: cause a light emitting device including plural light emitting sections to emit light such that each of the light emitting sections has a predetermined plural light emitting periods and a light non-emitting period following each of the light emitting periods; and switch a second light emitting section other than a first light emitting section among the plural light emitting sections, which has a light emitting period to be included in a light non-emitting period of the first light emitting section.