1. What is the purpose of near UV LED light?
With a near UV light digital Camera you can capture very detailed data, which can be undetected
by human eyes. Below are images depicting the greater detail (scratches, blemished, etc.)
that can be captured when using a UV camera versus a standard camera.
SURFACE INSPECTION
IDENTIFICATION
3D INSPECTION SELECTION
PCB INSPECTION/SOLDER INSPECTION
2. What Is Ultraviolet Light?
Ultraviolet light is part of the light spectrum, which is classified into three wavelength ranges:
UV-C from 100 nanometers to 280 nm;
UV-B from 280nm to 315 nm; and,
UV-A from 315 nm to 400nm.
These waves are invisible to the human eye, but some insects like bumblebees, can see them.
The human eye responds to light with wavelengths from about 400 nm (violet) to 700 nm (red).
Visible light waves are the only electromagnetic waves we can see. We see these waves as the
colors of the rainbow. Each color has a different wavelength. Red has the longest wavelength
and violet has the shortest. When all the waves are seen together, they make white light.
3. What Is the Dino-Lite near UV series light output power (mW or mW/cm2)?
The light output power of the near UV LED for
AD4113T-FVW is about 16mW x 4 LED = 64mW
AM4113-FVT is about 16mW x 8 LED = 128mW
AM4113T-FV2W is about 11mW x 4 LED = 44mW
The diverge angle for AM-4113FVT– 40o
4. How sensitive to infrared light are the Dino-Lite Digital Microscopes?
Dino-Lite scope lens are glass with IR coated. The filter is an IR pass filter.
The Dino-Lite digital microscopes are sensitive up to 940nm
NOTE: Only the AM413FIT (850nm) has IR cut filter, and AD413T-I2V (IR 940nm) has no IR
cut filter.
That is the center value of the wavelength. Since it is LED, not laser, the wavelength has
bandwidth.
The AM413-FIT (IR) and AM4113FVT (UV) contain visible light filters. Other models with
variable lighting, like the AD413T-I2V (UV/IR) do not contain visible light filters. These models
are most effective in imaging UV and IR at distances of less than 3 inches..
For near UV
• Excitation: near-UV LEDs (on/off software adjustable), 390-400nm
• Excitation: near-UV LEDs 365nm~375nm
• Emission Filter Cutoff Wavelength: 425nm
The light output power of the UV LED for AM4013FVW is about 16mW x 8 LED = 64mW
The light output power of the UV LED for AM4013T-FV2W is about 11mW x 4 LED = 44mW
5. Dino-Lite (UV and IR) contain filters for visible light?
Some models, including the AM413-FIT (IR) and AM4013FVT (UV) contain visible light
filters. Other models with variable lighting, like the AD413T-I2V (UV/IR) do not contain visible
light filters. These models are most effective in imaging UV and IR at distances of less than 3
inches.
6. What is the brightness and wavelength of the LED’s?
The brightness of LEDs is measured in millicandela (mcd), or thousandths of a candel
LED ———————–Optical Power Output ————Relative Emission Intensity
White LED 2600mcd——- N/A —————————-1.0 a.u.
FVT (400nm) ————–Max.=20mW ——————–1.0 a.u
FV2W (375nm)———— Max.=13.600mW ————– 1.0 a.u.
White LED’s wavelength 500 ~ 700nm
The color temperature of the LED’s range from 5500-9500K.
Near UV 375nm~405nm
Near Infrared ~ 850nm ~ 940nm