Portable Light Sterilization Device
Design Constraints
UV-C Bulb:
Our UV-C bulb must be small enough to be able to incorporate into the portable device, and also small enough to be able to include our protective layers.
The UV-C bulb must also have a wavelength that is strong enough to kill bacteria. This wavelength would be in the interval of 100-280nm. If the wavelength is not within this interval, the device would not be an effective alternative for sterilization.
The voltage requirement on the bulb must also be reasonable, because the batteries need to fit into the small, portable device.
Power Supply:
The batteries that will be powering our device must have a maximum amperage greater than or equal the amount of current required to power the bulb.
The combination of batteries must be compact enough to incorporate into the portable device. If the battery combination is too large or heavy, the device would no longer be portable, and would no longer serve its purpose.
The batteries we use must also be accessible to the consumer. There are plenty of options, but if the consumer cannot easily access the option, the device would no longer be a sanitization option for everyone.
User Safety
One of the most important, if not the most important constraint for our design is user safety.
To ensure user safety, we must include a protective outer layer to the bulb, so the dangerous
UV-C rays cannot harm the consumer, or others around them.
It also must have a safety lock that prevents the device from being accidentally turned on, potentially harming the user or those around them. This safety lock must be simple enough so that the user does not have difficulty turning the device on, but cannot be turned on by reckless
children or by accident.
Budget Constraints
1. UVC Bulbs - $45
2. 9V Batteries - $5
3. PLA Filament - $25
4. Circuitry - $5
5. Acrylic Plastic - $0 (Supplied by the ITLL)
6. Bulb Sockets - $6
7. Acrylic Adhesive - $7