Resolution & DPI

DPI = Dots Per Inch
True DPI is defined as how many dots can be lined up in an inch without overlapping.
There are 4X as many dots in a square inch at 600 DPI than at 300 DPI.

RMI Lasers Utilize YVO₄ Technology Resulting in the Highest Resolution Marking.


CO₂ Lasers Overlap Dots to achive 300DPI	CO₂ Lasers Overlap Dots to achive 600DPI	RMI TRUE 635 DPI

Or to put it another way, Photos can ONLY be Engraved at True DPI.
note: RMI can also overlap dots for Vector Art (text) which results in extremely clean lines.

All Laser Marking Systems produce dots. AKA Laser Spot size. These dot's are based on a combination of the wavelength of the Laser technology and the Focus of the Beam.

Laser	Wavelength	Best Spot Size*	Typical Spot Size**	True DPI
YVO₄ (U-10)	1064nm	30µm (.001")	40µm ( .0015")	847 / 635 DPI
YVO₄ (U-5G)	532nm	20µm (.0008")	30µm ( .001")	1,270 / 847 DPI
YVO₄ (U-5G)	532nm	20µm (.0008")	30µm ( .001")	1,270 / 847 DPI
CO₂	10600nm	76µm (.003")	178µm (.007")	334 / 142 DPI
YAG Diode Pumped	1064nm	50µm (.002")	100µm (.004")	500 / 254 DPI
YAG Flash Lamp	1064nm	50µm (.002")	100µm (.004")	500 / 254 DPI
Fiber	1030-1050nm	30µm (.001")	40µm ( .0015")	847 / 635 DPI

While Fiber and YVO₄ seem similar in resolution, Fiber is much slower which generates considerably more heat.


Best Result Possible	Normal Operation on Most Materials

These are a Side By Side Comparison of the original photo and the Engraved 2.5 X 2.5" piece.

Continuous tone Photograph Actual Engraved Image at 500% magnification to show dots.

RMI Laser

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