It is well-known that the sterilization effect of deep ultraviolet LED is the efficiency of ultraviolet LED, ultraviolet dose E (uJ/cm2) = average optical power (uW/cm2) × time (s), the conversion formula of average optical power density and optical power is
It can be seen from the formula that the light-emitting angle is inversely proportional to the average optical power density on the surface of the object. The larger the light-emitting angle, the lower the average optical power density on the surface of the object. We use Tracepro to simulate the luminous flux distribution of Deep Purple Technology products L280-QSC1F30A700 and L280-QSC1F30A700-120° at 6cm, as shown in the figure below:
The actual test using the remote ATA-LED626 LED Goniophotometer also compares the two light output angles at the same time. For details, please refer to the product specifications of Deep Purple Technology. It should be noted that in different application environments, we need to calculate the UVC-LED irradiation range under different distances and then design the optical angle.
