## Xenon flash lamp for Laser & IPL output power calculator

Hello, I’m Chang-sung Seo of PLT Let me tell you the calculation of the xenon flash lamp input & output I made a supplementary video, because the last one was incomplete Now let’s look at the lamp This is the lamp L1506 of First Light Lamps in UK For reference, PLT is a Korean distributor of First Light Lamps Please call or e-mail us if you have any questions regarding the lamp Let’s look at the lamp closely The arc length is 154mm The inner diameter is 18mm And the xenon gas is put inside of the lamp The value of Torr (gas pressure) is missing, but it’s 450 Torr The impedance value is 10.95 I’ll input these values in my calculation formula 154mm 18mm 450 Torr I’ll enter 100,000 microfarads as the capacitor value The voltage is 300 volts The pulse width is 1ms When I input the values, the lamp impedance value changed into 10.95 It matches with the number of the lamp data sheet we saw earlier That means this formula is right If we change the values of the arc length, inner diameter and Torr, the impedance will change Let’s find out what happens I’ll change the Torr value first… into 550 Look, the impedance value has changed Let’s change the value of the inner diameter… into 15mm The lamp impedance has changed Now let’s change the value of the arc length… into 130mm The lamp impedance has changed I’ll input the initial values back Again, let me explain By the values of arc length, inner diameter, Torr, voltage and pulse width The values of the output energy, max power and peak current change Let me change these values Let’s input 10ms in the pulse width We can see that the values has changed by entering 10ms Then how about 20ms? When I changed to 20ms, the values changed Now let’s change the voltage I’m raising the voltage to 700 volts This value changed by raising voltage However the lamp status also changed from ‘Good’ to ‘Not Good’ This means… The lamp may burst or accelerate aging So… This parameter can be problematic So you need to change the value We should lower the pulse width or the voltage… Let’s lower the pulse width I’ll input 5ms Nothing happened with 5ms, then let’s try 1ms Now the lamp status changed to ‘Good’ And let me explain this part The output energy is in percentage It shows the discharging percentage out of 100%, this one discharges 11% And the output energy discharges 2,698 joules The max power is 2,858 kilowatt And the peak current is 4,083 amperes And at the bottom… For example, the laser efficiency is 3%… 3% of 2,698 joules are 80 joules That means we can predict the laser output Again, if it is IPL, not the laser 1,079 joules will be emitted In this way, we can predict the laser output With the data sheet, let’s see if the voltage and the current match to the formula When the voltage is 1,100 volts, the current is about 10,000 amperes Let’s check I’ve inputted 1,100 volts Although the status is ‘Not Good’, the peak current has become 10,080 amperes The data sheet and the calculation are a match Then I’ll check once again When the voltage is 400 volts, the current is between 1,000 and 2,000, let’s check When the voltage is 400 volts, the status change to ‘Good’ And the peak current is 1,333 amperes Let’s check the data sheet We can say… it’s roughly… 1,300 amperes Calculation formula and the lamp data sheet match There are some advantages in using our formula, I’ll tell you what they are You can optimize your lamp use Sometimes you use your lamp under harsh conditions Then the lamp will age or It can accelerate the whitening or blackening Before that You have to calculate if the voltage and current supplied into the lamp are proper or not Secondly, you can save time and reduce manufacturing costs Instead of measuring the energy after production of the system you can set the energy value and power you want in advance That way you can save time and reduce manufacturing costs a lot Thirdly, you can simulate whether it can be implemented You can make lamp and power as big as you want But it is hard to get the energy as much as you want without calculating With or without the system It’s possible if you use our program Lastly, you can figure out the efficiency We measure the output with the power meter, but we don’t measure the input If you know the input, then you can get the efficiency This can be useful when you upgrade your system So far, I’ve explained the flash lamp input and output calculation. If you have any questions, please email me or call I’ll wrap this up, thank you.