초록 ▼

A detection apparatus for monitoring specified safety eyewear being worn by persons who are either passing into or are located in the designated area which requires that a person in the area be wearing the specified safety eyewear. The detection apparatus includes an infrared reflector which is loca

A detection apparatus for monitoring specified safety eyewear being worn by persons who are either passing into or are located in the designated area which requires that a person in the area be wearing the specified safety eyewear. The detection apparatus includes an infrared reflector which is located on the specified eyewear, an infrared transmitter for transmitting a beam of infrared radiation towards the person, an infrared receiver which receives reflected radiation from the infrared reflector on the safety eyewear being worn by the person and an alarm which is normally inactive and which remains inactive as long as infrared radiation from the transmitter is reflected back to the infrared receiver from the reflector. The alarm is activated when infrared radiation is transmitted to the person and not reflected to the receiver due to the absence of specified safety eyewear which contains the appropriate infrared reflector.

대표청구항 ▼

A detection apparatus for monitoring specified safety eyewear being worn by persons who are passing through an entryway into a designated area which requires that persons in said area be wearing said specified safety eyewear, said detection apparatus comprising: (a) an infrared reflector which refle

A detection apparatus for monitoring specified safety eyewear being worn by persons who are passing through an entryway into a designated area which requires that persons in said area be wearing said specified safety eyewear, said detection apparatus comprising: (a) an infrared reflector which reflects infrared radiation and which is fixed to said specified eyewear, (b) an infrared transmitter which is located at one side of said entryway for transmitting a beam of infrared radiation toward the opposite side of said entryway so that at least a portion of said beam is reflected back to said one side by the reflector of said specified eyewear which is worn by a person who is passing through said entryway, (c) a receiver which is located at said one side of said entryway for receiving said reflected infrared radiation, and (d) an alarm which is normally inactive and which is operatively connected to said transmitter and said receiver, said alarm remaining inactive when a beam of infrared radiation is transmitted by said transmitter and reflected to said receiver, said alarm being activated when a beam of infrared radiation is transmitted by said transmitter and no reflected infrared radiation is received by said receiver.