To MARUBENI-OPTO™, the terms “light” and “visible radiation” (VIS) refer to the wavelength range between 400 nm and 800 nm, which can be perceived by the human eye.
Here again compound semiconductors have realized a wide spectrum of emissions. The primary High- Brightness compound semiconductor technologies used to create a
variety of colors include:

- AlInGaN: Violet, Royal Blue, Blue, Cyan (Blue-Green), Green
- AlInGaP: Yellow Green (YG), Yellow, Amber, Orange, Portland Orange, Red
- AlGaAs: Red, Ruby Red, Deep Red, Near IR

These devices are measured and binned utilizing photometric test methods that measure the dominant wavelength (D). The Near UV and the Near IR LED types we oer are
included in the UV and IR portions of this website respectively. For example, our LEDs which have a Photometric Dominant Wavelength (D) nominal of 410nm D (ranges from
400-420 nm D), have a Radiometric Peak Emission Wavelength of 400 nm p (ranges from 395-405 nm p).
Epitaxial wafers, fabricated Known-Good Die, Packaged LEDs, COB/DOB compact micro-arrays (CMA™), modules are all oered as standard products by MARUBENI-OPTO™.
Packaged LEDs include: Molded PTH Lamps (3, 5 mm), Metal TO- Header Lamps, SMDs (leadless ceramic, PLCCs, Power Packages).