What is the wavelength of UV LED?

What is the wavelength of UV LED?

UV light-emitting diodes (LEDs) have a narrow spectral output centered on a specific wavelength, +/- 15nm, with typical commercial UV LED lamps emitting at 365nm, 385nm, 395nm or 405nm wavelengths.

How is UV light intensity measured?

A UV meter is also often referred to as a radiometer, optometer or light meter. It is a tool capable of measuring the absolute (calibrated) amount of light power within a certain portion of the electromagnetic spectrum, called wavelengths.

How do you calibrate a UV meter?

To test and calibrate UV lamp radiation: Start the UV Calibration Wizard from the Options menu. In the following screen, select Calibrate UV Intensity to adjust the power supplied to the UV lamps so that the UV radiation is within the acceptable range.

What is UV LED curing?

LED UV curing uses high-intensity electronic ultraviolet (UV) light to change inks, coatings, adhesives or other photo-reactive substances through polymerization into instantly fixed-in-place solids. “Drying,” by contrast, solidifies chemistry through evaporation or by absorption.

Is 405 nm an ultraviolet?

The UV/Visible Radiation Boundary Region (385–405 nm) Damages Skin Cells and Induces “dark” Cyclobutane Pyrimidine Dimers in Human Skin in vivo | Scientific Reports.

What determines LED wavelength?

Wavelength is used to differentiate coloured, UV and IR LEDs, but not white LEDs. The wavelength of an LED is determined by the semiconductor material used within it. When choosing your LED, the wavelength value will give you an idea of the colour of the light it’s going to emit.

What is the unit of UV intensity?

The intensity of UV radiation is measured in the units of milliwatts per square centimeter (mW/cm2) which is energy per square centimeter received per second.

How do you convert UV index to m2?

UV-index. The UV-index is a non-dimensional unit defined as the CIE-weighted UV-irradiance (Wm-2) multiplied by the factor 40 (W-1m2).

How do UV LEDs work?

UV Light Emitting Diodes (LEDs) are a solid-state device that produces light when an electrical current is allowed to flow from the positive (p-type or anode) side of the circuit to the negative (n-type or cathode) side. Each LED is made to produce a specific narrow range of UV wavelength.

What is the difference between UV light and LED light?

The difference between an LED and UV nail lamp is based on the type of radiation the bulb emits. Both LED and UV nail lamps emit UV wavelengths and work in the same way. However, UV lamps emit a broader spectrum of wavelengths, while LED lamps produce a narrower, more targeted number of wavelengths.