Optical Measuring Device Dynamic Light Intensity Control
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Solution Overview
Problem
Existing optical measuring apparatuses for three-dimensional object detection face challenges in reducing energy consumption and computing effort, particularly in intraoral applications, due to unnecessary heat generation from image data sets and registration processes.
Innovation Solution
An optical measuring method that regulates light intensity and recording frequency based on sensor signals, including temperature and movement data, to optimize energy use and data collection, ensuring sufficient data quality while minimizing unnecessary data recording and heat generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the optical recording unit continuously records height maps at high recording frequency with sufficient light intensity, then the measurement precision and data quality are improved, but the energy consumption and heat generation increase
Solution Approach 1:
The patent applies dynamics by making the recording frequency and light intensity adjustable rather than fixed. The control unit dynamically adapts these parameters based on real-time feedback from temperature sensors and movement sensors, allowing the system to optimize between data quality and energy consumption during different phases of measurement
Solution Approach 2:
The patent implements feedback mechanisms where temperature sensor signals and movement sensor signals are fed back to the control unit. This feedback loop enables the system to automatically adjust recording parameters based on actual thermal conditions and measurement progress, resolving the contradiction between continuous high-quality recording and energy consumption
2Reliability
If the optical recording unit continuously records height maps throughout the measurement time interval, then the completeness of the overall height map is improved, but the computing effort and unnecessary data processing increase
Solution Approach 1:
The patent applies preliminary action by using movement sensors to predict when the recording unit will capture new regions of the object. The control unit proactively adjusts recording frequency based on predicted movement patterns, ensuring complete coverage while avoiding redundant recordings in already-measured regions
Solution Approach 2:
The patent implements partial action by selectively recording only when necessary based on movement detection. When the sensor detects that the recording unit is moving over already-measured regions, the system reduces or stops recording, avoiding excessive data collection while maintaining sufficient coverage for reliable measurement
3Measurement precision
If the light intensity and recording frequency are kept high throughout the measurement, then the data quality is maintained, but the heat generation from illumination and processing increases
Solution Approach 1:
The patent applies parameter changes by dynamically modifying light intensity and recording frequency based on temperature feedback. When temperature sensors detect elevated heat levels, the control unit reduces these parameters to lower heat generation while maintaining adequate data quality through adaptive adjustment rather than fixed high settings
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 approach effectively reduces energy consumption and heat generation while maintaining data quality, allowing for efficient three-dimensional surface detection of objects, including those larger than the recording region, by dynamically adjusting illumination and recording parameters according to the measurement state.
Implementation Method 1
the object is illuminated by the recording unit using an illumination beam with a light intensity and height maps are successively detected by the recording unit
Data Source
AI summary
The invention relates to an optical measuring method for three-dimensionally capturing the surface of an object by means of an optical capturing unit, wherein the optical capturing unit is moved relative to the object during a first measurement time period, the object is illuminated by the capturing unit with an illumination beam having a light intensity, height images are captured by the capturing unit in succession at a capturing frequency, at least some of the captured height images during the measurement time period are added to form a total height image and the total height image is displayed, and the light intensity and/or the capturing frequency are controlled during the measurement time period by control signals, the control signals being produced at time intervals during the measurement time period and each control signal being produced on the basis of at least one sensor signal of a temperature sensor.