Noseshade for monitoring exposure to ultraviolet radiation

A noseshade for monitoring a subject's exposure to UV radiation, comprising:

• a contoured portion having clip-on means for attachment to a pair of glasses;
• a microcontroller including a central processing unit, a read-only memory, a read-and-write memory, a clock, and an electronic driver, said microcontroller being programmed to determine a threshold absorption dose of UV radiation, said microcontroller being incorporated into said contoured portion;
• a skin-type input switch and skin protection factor input switch, said switches being mounted into said contoured portion;
• a liquid-crystal display incorporated into said contoured portion, said digital LCD being able to display a total UV energy dose accumulated by said subject, said digital LCD also being able to display said subject's skin type;
• radiation-measuring means for measuring incident UV radiation and converting said radiation to electrical signals to be processed by said microcontroller;
• a plurality of solar cells having a pressure sensitive activation switch incorporated in said clip-on means;
• alarm means for issuing an audible signal indicating the attainment of said threshold absorption dose of UV radiation;
• and
• circuit conductor means for electronically connecting said microcontroller, said input switches, said digital LCD, said radiation-measuring means, an operational amplifier, said plurality of solar cells, and said alarm means.