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UVLED light curing market is huge
   23.3.2016    Source:www.longstartech.com.cn

Original title: Research crystal optoelectronic UVLED light curing market is huge

LEDforum2015 on 23 October 2015 at National Taiwan University International Conference Center held that afternoon sessions in niche markets currently on the market of considerable importance as a spindle, contains ultraviolet, infrared, vehicle application market opportunities and challenges.

Technical requirements for light curing market applications are as follows:

1 wavelength requirements: high power LED package, LED UV-A (365nm / 385nm / 395nm / 405nm / 430nm), the surface light source module is designed to achieve uniform light. If a LED light source is not bright, will lead to the failure of the curing effect, which is one of the biggest challenges of the light source module products. If we need to reduce the large size light source module, we can use a few pieces of single chip light source module splicing, seamless splicing is a very important technology.

2 optical design: in accordance with the requirements of the product for uniformity or irradiation working distance, light emitting angle is less than 60.

3 light intensity: depending on the working distance (1mm-150mm), the use of radiation intensity (W/cm2) calculation, between 4W-20W/cm2.

4 uniformity of light: at least 85% of the uniformity.

5 cooling system: in accordance with the requirements of the equipment and environment, the use of water or air cooling. From the cost of the cooling system, the LED gas cooling system is led water-cooled cooling system to low, however, easy accumulation of dust, noise, water cooling system. Although the use of a higher wattage, but can not be used in clean room.

LED UV application in the exposure machine has been quite difficult, mainly because of the optical design of LED UV is not easy to achieve parallel light. Mercury lamp light is a way through the glass tube bypass, parallel light, LED light bypass will continued to decrease in brightness, causing unnecessary losses.

1 optical design: in accordance with the requirements of the product for uniformity or parallel light (light collimated), light emitting angle between 1 degrees - 6 degrees.

2 light intensity: depending on the working distance (50mm-150mm), the use of radiation intensity (W/cm2) calculation, between 100mW-1W/cm2.

3 uniformity of light: at least 85% of the uniformity.

Based on the introduction of the crystal LED UV optical design, the use of special two optical design, the current can reach less than 2 degrees of parallel light, more uniform optical design, is suitable for application in PCB / LCD / IC exposure machine.

Above all kinds of light curing market technical requirements, need to be closely discussed with the customer, even if it is the same kind of machine, also need to adjust the customer environment, is a high degree of customization of the market.


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