How Are Lasers Used For Identification?

laser lights

Identification technology has advanced significantly over the decades, with a plethora of competing systems and solutions on the market in the modern era.

When it comes to accuracy, precision and versatility, laser-based identification services could arguably the most powerful and widely used of the bunch.

So how are lasers used for identification and what are the benefits associated with this type of setup today?


Laser marking is not only a powerful, fully customisable means of making products and property uniquely identifiable, but can also be immensely useful when it comes to crime prevention.

Modern laser marking machines are able to etch codes, patterns, symbols and unique designs onto everything from wood and metal to glass, plastic and fabric. You can get more info here if the equipment involved has piqued your interest.

Laser marking technologies mean that items can be rendered immediately, indelibly identifiable. This can help the police in the event that stolen property is recovered, while also being a deterrent in its own right.

There are some covert marking systems involving ultraviolet pens which only visible once the correct light is applied. This is all well and good, but will not be enough to stop a crook from snatching the product in the first place. On the other hand if criminals know that an item is marked with a laser identification system, they may be compelled to leave it alone rather than risk being caught further down the line.

This marking can also be applied to ID cards to add a layer of security which is incredibly hard to alter or replicate. For example, having each access card engraved with a unique QR code could making it very difficult for fakes and copies to be made, which is a welcome preventative measure in the face of growing corporate espionage concerns.


The other key area in which lasers play a part in identification is as a means of scanning marks left by other printing solutions.

Lasers have been harnessed to read barcodes for decades, although there are a number of other optical scanning technologies vying for attention in this industry.

The advantage of laser scanners is the speed of operation which they offer. They can quickly read barcodes in a matter of milliseconds, which can make a big difference in a retail environment where it is vital to serve each customer as efficiently as possible.

The way that lasers are used to identify unique barcodes in this instance involves a reflective system that detects the wavelength of the light that the scanner emits as it bounces back towards the source. The barcode’s individual bars create these unique, all-important variations which are read almost instantaneously.

This type of scanning can be used in tandem with the aforementioned laser marking in order to create a dual-pronged approach to identification that is potent in a range of commercial settings. From warehouses and storage facilities to distribution centres, high street outlets and office buildings, lasers can be found working around the clock in many environments.