[Tweakie]

I have in the past noticed that with laser engraved 8 bit images on wood that some white areas of the image can appear to be whiter than the natural colour of the background material and I have always put this down to being an optical illusion.
Recent tests have shown that at very low output levels a CO2 laser will (for want of a better word) bleach the natural colour of the wood being engraved and actually whiten the background. Although this effect can easily be reproduced during PWM output power controlled engraving when increasing the white level threshold above 0% I have not yet discovered any practical application.

This laser engraved image, I think, clearly shows the white areas to be whiter than the original background.

Has anyone else noticed this ?

Tweakie.

[Tweakie]

Some more laser engraved 8 bit images.

[sundorlaser2019]

hello,
I am a manufacture of fiber optic or CO2 laser marking or cutting.
I have the same found to you.
Could you share contact information we can talk more about this.
please add my whatsapp or email me if you like.
whatsapp&phone:18600395818
Email:[email protected]