Examples
Highway vehicle counter
- In the 1930s an electric eye vehicle counter was introduced in the US using two IR lamps set apart so that only cars and not pedestrians would be counted.
First compact commercial unit
- Also, a compact type of electric eye was offered in 1931 that was enclosed in a small steel case and much easier to install compared to older models.
Automatic wrapping machines
- In the 1930s an electric eye apparatus was developed to help a wrapping machine, wrap 82 boxes a minute.
Automatic door opener
- In 1931 General Electric tested the first automatic door openers now popular in hospitals. They called their electric eye, the Magic Eye.
Business alarm system
- In 1931 an electric eye that used invisible UV wave length was offered to businesses in need of a 24 hour alarm system.
Read more about this topic: Electric Eye
Famous quotes containing the word examples:
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—André Breton (1896–1966)
“There are many examples of women that have excelled in learning, and even in war, but this is no reason we should bring ‘em all up to Latin and Greek or else military discipline, instead of needle-work and housewifry.”
—Bernard Mandeville (1670–1733)
“In the examples that I here bring in of what I have [read], heard, done or said, I have refrained from daring to alter even the smallest and most indifferent circumstances. My conscience falsifies not an iota; for my knowledge I cannot answer.”
—Michel de Montaigne (1533–1592)