Electric heating rods come from USA top brand Coherent
Stable and reliable hard solder AuSn
Macro channel cooling structure, easy to use
Square spot, good energy concentration
Front panel with anti-reflection coating to reduce power loss
Sealed chamber manufacturing, the inside is completely sealed with nitrogen gas, and has good environmental compatibility
High stability of irradiance and light longevity, fast irradiation speed, high instant LED with characteristics such as efficacy.
Thanks to USA LaserTel Laser Bars, we are proud to offer our customers a 12 month or 10 million shots warranty on our handpieces, whichever comes first ! (Usually 20 million shots for lifetime)
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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Before & After