Vehicle Start Switch Biometric Sensor Illumination Design
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Solution Overview
Problem
Biometric sensors on vehicle indoor lighting devices are difficult to illuminate at night, making them hard to identify, which affects their functionality.
Innovation Solution
A start switch device with a biometric sensor, a light source emitting illuminating light from within the start button, and a design part around the sensor to define a design on the operating surface, enhancing visibility at night.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a biometric sensor is provided on the start button surface, then the functionality of the device is improved, but the identifiability of the biometric sensor at night deteriorates
Solution Approach 1:
A design part is introduced as an intermediary element between the light source and the biometric sensor. This design part transmits light from the light source to illuminate the biometric sensor, making it identifiable at night while maintaining the sensor's functional performance
Solution Approach 2:
The design part is configured to transmit light and create a visible design pattern on the operating surface. This optical property change allows the biometric sensor area to be visually identified by transmitting illuminating light through the design part, solving the nighttime identifiability issue
2Difficulty of detecting and measuring
If additional light sources are added to illuminate the biometric sensor, then the identifiability at night is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The light source serves multiple functions: it provides overall illumination for the start button and simultaneously illuminates the biometric sensor through the design part. This multi-functionality eliminates the need for separate illumination components, reducing device complexity and manufacturing cost
Solution Approach 2:
The illumination function for the biometric sensor is merged with the existing light source in the start button. By combining these functions and using the design part as a light transmission element, the patent avoids adding separate illumination components, thereby simplifying the device structure
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
Improves the identifiability of the biometric sensor at night by providing an illuminated design, reducing the need for additional light sources and allowing for a more compact design, thus lowering manufacturing costs.
Implementation Method 1
a light source configured to emit an illuminating light from an inside of the start button toward the operating surface
Implementation Method 2
a design part arranged around the biometric sensor on the operating surface and configured to define a design on the operating surface by the illuminating light transmitted therethrough
Data Source
AI summary
A start switch device includes a start button configured to send a command to start or stop a vehicle drive device, a biometric sensor arranged on the start button for reading a biometric information of an operator to operate an operating surface of the start button, a light source configured to emit an illuminating light from an inside of the start button toward the operating surface, and a design part arranged around the biometric sensor on the operating surface and configured to define a design on the operating surface by the illuminating light transmitted therethrough.