• HP Lighting Provides Optimized UV LED Optic Design that Delivers Uniform Lighting Distribution According to Different Applicaiton System
    Jul 17 , 2015

    Charles Wei, the Chairman of HP Lighting shed some light on UV LED product development trends and solutions in an exclusive interview with LEDinside at IR+UV EXPO 2015, which took place in Pacifico Yokohama, Japan, from April 22-24, 2015.

    HP Lighting was founded in 2005, and has been improving its UV LED product technology, such as its products irradiance, package material, and compatibility. The company is an industry leader in UV LED optics and system designs. Following UV technology and market developments, the company has prioritized optimizing optic designs to reach uniform parallel lighting effect. As a result, HP Lighting has featured four major UV LED products, PCB UV curing machines, printing, and the company provides system solutions to the LCD exposure market, which remains one of the most difficult market to enter.

    The major UV LED technology challenge in PCB UV curing machine applications is the irradiance’s uniformity, and ensuring the intensity of the irradiance at the center and corners of the machine remain the same. This has been the main obstacle for single wavelength UV LEDs to replace linear wavelength traditional mercury vapor lamps. HP Lighting’s best UV LED tube solution is a LED tube that utilizes wavelengths ranging from 365 nm to 415 nm. Besides strengthening and adjusting irradiation in the center of the machine with the company’s in-house designed secondary optic lenses, HP Lighting also uses reflectors to evenly distribute lighting onto the PCB for curing. In addition, the company has its own water cooling system patent, and has sent samples of the machine to PCB UV curing manufacturers.