Sunscreen Container UV Sensor Sealing Mechanism
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Solution Overview
Problem
Existing products fail to provide a reliable and safe method for determining tanning time based on skin type and UV intensity, leading to potential sunburn, and they often have short sensor lifespan due to unnecessary exposure to UV radiation.
Innovation Solution
A container for sunscreen with a built-in UV-sensitive photochromic sun sensor that changes hue to indicate UV intensity, combined with a skin-type indicator and time table, allowing users to determine safe tanning time while protecting the sensor from UV radiation when not in use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sun sensor is continuously exposed to UV radiation to provide readings, then the measurement function is maintained, but the sensor lifespan decreases due to unnecessary wear
Solution Approach 1:
The sealing device is designed to automatically protect the sun sensor from UV radiation when not in use, performing the protective action in advance before damage can occur. This preliminary protection extends sensor lifespan while maintaining measurement readiness when needed.
Solution Approach 2:
The sealing device acts as an intermediary between the sun sensor and UV radiation, blocking harmful UV rays from reaching the sensor when protection is needed, while allowing the sensor to function when the sealing device is opened for measurement.
2Reliability
If the container is designed with a sealed orifice to protect the sensor, then sensor protection is improved, but the device complexity increases
Solution Approach 1:
The sealing device performs multiple functions simultaneously: it seals the orifice to prevent product loss, protects the sun sensor from UV radiation, and maintains container integrity. This multi-functionality reduces the need for separate protective components, thereby limiting complexity increase.
3Measurement precision
If the sun sensor is positioned to be exposed when the sealing device is open, then UV intensity measurement is enabled, but the sensor is vulnerable to unnecessary UV exposure
Solution Approach 1:
The system dynamically adjusts sensor exposure based on operational needs. When the sealing device is closed, the sensor is protected from UV radiation. When the sealing device is opened for measurement, the sensor becomes exposed to detect UV intensity. This dynamic positioning balances measurement precision with sensor durability.
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
Enables users to safely determine their tanning time and extends the sensor's lifespan by protecting it from UV exposure, reducing unnecessary disposal and simplifying logistics.
Implementation Method 1
a sun sensor arranged to indicate the current UV intensity by changing its hue depending on the UV intensity of the radiation striking the sensor
Data Source
AI summary
The invention relates to a container for sunscreen agent in which the sunscreen agent has a specific predetermined sun-protection factor, comprising a sealing device (2) by which the container (1) can be closed to make its opening (8) completely sealed, the container (1) being provided with at least one sun sensor (3) arranged to indicate the current UV intensity by changing its hue depending on the UV intensity of the radiation striking the sensor (3), said container further comprising a color-reference range (4) for comparative reading of the hue of the sensor to enable the determination of UV intensity, and time indicator (50) for determining the period of time during which a person of a specific skin type can expose his or her skin to solar radiation at said determined UV intensity without sunburn arising, provided said person has applied the sunscreen agent from the container to the skin, said sun sensor (3) being arranged as an integral part of the container (1) and being positioned such that it is completely covered by the sealing device (2) when the sealing device (2) is sealed.