Lock opening system activated by light matching code

Details Lock opening system activated by light matching code Lock opening system activated by light matching code

E - Fixed Constructions

05

B

340/124.4

E05B 49/00 (2006.01)

Patent

CA 1057377

A B S T R A C T An electronic key is known to activate the lock by some decoding device. The information supplied by the owner of the key has to match with the programmed code stored in the lock memory, and only under this situation will the lock open. In this invention the key is a ring having inside an optical decoding unit. The light source and the light receiver are situated into the key-hole. When the ring is introduced in the key hole, the light crosses through the ring decoding unit and after matching with the programmed code, the lock opens.

270740

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