Technology
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IPL
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Diode Laser
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LED
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Light source features
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Light source
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Xenon lamp
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Diode laser bars
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LED chips
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wavelength
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Wide spectrum 610nm-900nm
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Single wavelength 755/808nm/1064nm
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Narrow spectrum 780-850nm
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Light power
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5-10kw
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320-1000w
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840w
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Light emitting area shape
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Columnar
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Line
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Surface
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Pulse lifespan
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10000-30000shots
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8-30million shots
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60-100 million shots
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Operation
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Operation mode
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Stamp
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Stamp/Repeat
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Stamp/Repeat
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Energy density
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1-40j/cm2
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Stamp:50-100cm2
Repeat:5-12J/cm2@10Hz |
Stamp:50-100cm2
Repeat:5-12J/cm2@10Hz |
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Maintenance
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Handle
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Always need change light tube
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Laser generator is easily damaged, need replace every 1 to 2 years
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If normal use and regular maintenance, handle has the same lifespan as device
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Filter
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No need
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Need often change filter and deionizer, if not, laser generator is easily damaged
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No need
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Cooling water
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Drinking water
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Special deionized water or coolant
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Drinking water
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Product Name
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iMED_LED
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Light source
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LED
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Light spectrum
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NIR
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Light power
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800W
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Pulse width
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10-300ms
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Energy density
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1-100J/cm2
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Frequency
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1-10Hz
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Skin type
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I-VI
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Operation mode
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Stamp, Repeat
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Spot size
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15*15mm2
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Cooling system
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TEC Sapphire contact cooling/ Water cooling
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Cooling temperature
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15℃ – 10℃
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Size
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50*46*35cm
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Net weight
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25KG
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Diode laser
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LED
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LED Advantages
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Thermal damage
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Light power
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Similar
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Thermal power
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Similar
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Chip size
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1*10mm
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7.5*7.5mm
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Conclusion
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Similar total thermal power, LED has bigger heat dissipation are and smaller heat flow density.
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Heat transfer patch
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Pass to the bottom and rear Average path is 1.5mm
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Pass to the bottom Average path is just 0.2mm
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Conclusion
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LED has very short heat transfer path, lower thermal resistance and much higher efficiency of heat dissipation.
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Mechanical damage
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Stress
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Rectangle, high length-width ratio. Under stress of thermal deformation and thermal fatigue, chips easily desoldering or broken in
pulsed working |
Square, 1:1 length-width ratio. Extra thin chip and large soldering area firmly but low stress.
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Conclusion
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Because of chip structure, LED chip’s stress is smaller than diode laser
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Optical damage
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Light power
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Similar
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Light emitting area
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Size 0.01*0.1mm High brightness, foreign body pollution can cause light-emitting surface burned
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Size 5*5mm Brightness is just similar to normal LED lamp of flashlight, slight dust will not being ignited to burn the lighting
surface |
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Conclusion
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Because of surface emitting, the brightness of LED light emitting area is much smaller than diode laser.
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Chain damage
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Not like diode laser, for LED chips, single area’s failure does not affect other emitting area
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