Optical device

Abstract

An optical device includes: a lock having a locking unit and an actuation unit having at least one sensor and a reflective plate; and a key for the lock, configured with an unlocking unit having at least a light-guiding element for transmitting optical signals between the actuation unit and the unlocking unit. The actuation unit is activated to unlock the locking unit after the sensor detects and recognizes the optical signals. As the optical signals that are to be transmitted between the actuation unit and the unlocking unit can not be intercepted easily and also can be encoded, not only it is difficult to forge the key for the optical device of the present invention, but also the structural integrity of the optical device will not deteriorate easily after being used for a period of time. Therefore, the present invention is low in cost and has an excellent anti-theft effect.

Description

technical field [0001] The present invention relates to an optical key, especially an optical key that can make the light wave signal between the lock and the key difficult to be cracked and intercepted, and less likely to be duplicated and degraded, so as to achieve effective anti-theft and reduce production costs. effect. Background technique [0002] Generally, the traditional lock is composed of a lock body, a lock core contained in the lock body, and a lock bolt interlocked with the lock core. The key to open the lock is provided with different depths on its two wide surfaces When the lock is to be opened, the key is inserted into the key hole of the lock core and rotated, so that the lock core pushes back the lock bolt to achieve the action of opening the lock. [0003] However, because the existing locks and keys are made of metal, and all mechanisms are mechanically interlocked in the lock, there will be too many parts, difficult assembly and high cost; moreover Si...

AI Technical Summary

Problems solved by technology

[0003] However, because the existing locks and keys are made of metal, and all mechanisms are mechanically interlocked in the lock, there will be too many parts, difficult assembly and high cost; moreover Since the keys of the locks are generally flat, and the key and the lock core of such a shape and the way of its mechanical linkage have been widely used in the market, therefore, not only the keys are easy to be copied, but also very easy to suffer cracking and destroying (even the lock can be opened with iron wire or other flat utensils), so that the lock has no anti-theft effect at all

Images