Infrared Thermometer Optical Positioning and Internal Display
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Solution Overview
Problem
Existing infrared thermometers face challenges in correct positioning, convenience of measurement reading, time required for measurements, and practicality in clinical and hospital contexts, particularly due to complex positioning systems and non-intuitive distance determination, which increases marketing costs and user complexity.
Innovation Solution
An infrared thermometer with a casing featuring a pointing and detection portion, including a programmable electronic unit, infrared temperature detector, and optical reader, which uses light beams and luminous shapes to indicate correct distance and facilitate rapid temperature detection and reading, along with an optical mechanism to align luminous shapes for accurate positioning and display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If optical, ultrasonic or electromagnetic wave systems are used to determine correct distance, then positioning accuracy is improved, but device complexity and marketing costs increase
Solution Approach 1:
The patent uses simple, inexpensive optical components (light emitters and shutters) instead of complex optical, ultrasonic, or electromagnetic systems. The light-based positioning system provides sufficient accuracy for clinical use while keeping the device simple and cost-effective.
Solution Approach 2:
The patent replaces complex mechanical positioning systems with an optical system using light beams and shutters. This substitution simplifies the mechanism while maintaining positioning accuracy, as the optical system requires fewer moving parts and is easier to control.
2Illumination intensity
If external display is used for temperature reading, then measurement visibility is improved, but operation time increases due to positioning and orientation requirements
Solution Approach 1:
The patent moves the display from the external surface to the internal surface of the casing. This dimensional change allows the display to be viewed from any angle by simply opening the casing, eliminating the need for precise orientation and reducing measurement time.
Solution Approach 2:
The patent creates an internal display that is optically accessible from the outside when the casing is opened. This internal copy of the temperature information can be viewed immediately without requiring the user to orient the device in a specific way, thus reducing operation time.
3Illumination intensity
If backlit display is used for night-time measurement, then display visibility in dark environment is improved, but energy consumption increases
Solution Approach 1:
The patent uses the ambient light from the examination room to illuminate the internal display surface. The casing itself acts as a light guide, reflecting and distributing the ambient light to make the display visible without requiring additional power-consuming backlighting.
Solution Approach 2:
The patent replaces the electrical backlighting system with an optical system that uses ambient light. This substitution eliminates the need for additional power consumption while maintaining display visibility in various lighting conditions.
4Productivity
If multiple consecutive measurements are performed, then productivity is improved, but operation time accumulates due to repeated positioning and reading operations
Solution Approach 1:
The patent allows the user to position the device once and then open the casing to view the display. This preliminary positioning action eliminates the need for repeated positioning and orientation adjustments during multiple consecutive measurements, significantly reducing total operation time.
Solution Approach 2:
The patent enables continuous measurement operations by allowing the user to maintain the device in a fixed position and simply open/close the casing for each reading. This continuous workflow eliminates the interruption and repositioning time between measurements, improving productivity.
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
The solution enables rapid and practical identification of the correct position for temperature detection, immediate reading of temperatures, and reduced construction and marketing costs, improving user convenience and efficiency in clinical and hospital settings.
Implementation Method 1
an infrared temperature detector configured to receive infrared radiations coming from a destination surface of the patient to detect the temperature of the destination surface
Implementation Method 2
uses light beams and luminous shapes to indicate correct distance and facilitate rapid temperature detection and reading, along with an optical mechanism to align luminous shapes for accurate positioning and display
Data Source
AI summary
The present invention relates to an infrared thermometer (1) able to project the detected temperature directly on the surface (6a) of the body (2) to be measured. The determination of the ideal distance of the thermometer from the body, necessary for the correct detection of the temperature thereof, being visually identifiable by means of the relative position of luminous shapes (8a, 8b) projected on the body to be measured (6).