Have you ever heard of Black Light? Maybe we confused you out with that weird looking statement. How can a light be ever black, because the color black itself is indicative of the lack of light, right? Not exactly. The science has the concept of black light, and we will today discuss how a Black Light app can double up as your best mate in detecting the hidden treasures!
What is a Black Light?
A Black Light is actually a UV light and has a purple look in terms of appearance. The light emitted by these lamps is in the ultraviolet range of the spectrum. Though it is called Black light in terms of the day to day usage, it is referred to as Ultraviolet light when it comes to the scientific name of the feature.
So, why is a Black Light is called a Black Light? The Black Light or the Ultraviolet Light is called a light, but it will not be visible to the human eye. It emits the ultraviolet radiations and appears Black to your eyes. However, when the Black light falls on the fluorescent lamps or any of the white things, it glows.
The Black Light Apps – A new trend
There are several apps in the market that cater to the realm of Black light apps. You can make the flash on your smartphone camera to work as Black Light or UV Light. There are several advantages associated with the black light apps. We will understand it in a finer detail.
One of the major advantages associated with the Black light apps is that it makes the objects that are invisible to human eyes more visible.
How can the black light apps be useful?
The concept of Black light apps can be quite helpful and of practical use in many cases. One of the practical applications can be visiting a hotel room. You may be uncomfortable about the cleanliness about the room.
A good black light app can be helpful enough in addressing this concern. Even when the room may look clean enough, it may have a few elements that are not visible to the naked eye. Black light apps and the technology behind them will be useful enough in making it possible to find such possible issues.
Black light apps have always been used by the Crime investigators to get the clues that may not be visible to the human eye. Traces of semen, saliva, and other bodily fluids can easily be identified with the Black light apps. These objects or traces fall under the UV range of the spectrum and thus can be viewed with the help of black light as they glow under it.
In fact, instead of investing in the expensive black light emitters, the black light apps can be one of the easiest options to convert your smartphone flash itself into the black light emitter.
Where are they Helpful?
As can be very well understood from the discussion that we have had so far, the black light app can be helpful in detecting the objects or stains that may not be visible to the human eye. The Black Light app turns your phone into a UV light emitter and helps you detect the objects in the UV range of the spectrum.
They find a callable use in the crime scene investigation. You can imagine a scene straight from the CSI movies and shows. The black light apps can be effective in detecting the human body fluids like sweat, urine, semen, and saliva. As these can be quite invisible to the human eye, detecting them with the Black light apps can lead you into a lot of clues into the mishap.
Black light apps can be quite helpful in cracking the case by pin pointing you to the important clues and thus can be a major and inevitable option if you are a detective or even a lawyer. Instead of investing into the expensive black light emitter options, it may be practical enough to go the affordable and handy way of opting for the Black light app on your smartphone itself.
What is the principle that Black Light app follows?
If you have studied physics, you may have already heard the term Fluorescence. Fluorescence is defined as the emission of light from the objects that have already absorbed light or any other sort of electromagnetic radiation.
Since the light absorbed by these objects is at a lower energy level and thus is emitted at a lower wavelength than that absorbed. This lower wavelength will make them fall under the UV range of the spectrum and thus makes them invisible to the naked human eye. The Black light app makes your phone emit ultraviolet rays, and thus the photons emitted by the objects is turned visible to the humans.
How to Choose a Black Light app?
Not all the Black Light apps available on the app stores or elsewhere do not necessarily conform to the standards you expect from them. Most of the apps tend to be fake or prank ones and thus should be carefully observed before opting for them.
Ensure the developer has the relevant experience in the concept of fluorescence and other elements involved in the Black light or ultraviolet emission. This will ensure that the app will be able to provide the core functionality that is expected of it.
Before we conclude
Well, that was all we had with respect to the concept of Black light and Blacklight apps. We assume you will now be able to understand the difference between a genuine Black light app and the fake ones that try fooling you. Choose your app wisely and get the best results of ultraviolet detections.
Have you used any of the Black light apps available for your smartphone? If you have any favorite black light app that offers a good level of functionality, do share your experiences and opinions through the comments here.