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Message-ID: <560554F5.6050009@ecosensory.com>
Date: Fri, 25 Sep 2015 09:06:45 -0500
From: John Griessen <john AT ecosensory DOT com>
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To: geda-user AT delorie DOT com
Subject: Re: [geda-user] Off topic (UV printer)
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On 09/24/2015 10:04 PM, Stan Katz (stan DOT katz DOT hk AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> I'm referring to using the multi-mirror DLP ic by Texas Instruments that used to be used in TVs. The company in the following link
> uses the TI DLP chip to print directly, by projection. No chopping up of an office laser printer is required. You'll need good
> knowledge of optics to get this working, but I consider this the best way to go.
> https://www.youtube.com/watch?v=heUPV0aci5c


That video by Maskless Lithography showed multiple bright light square reflections on
the surface being projected to.  So they load up as much image as will fit into on micro mirror chip
and then an adjacent one handles more.  Just one micro mirror chip would do some good prototypes.

I wonder if any of the patents about grey level imaging are expired?  28 related to micromirrors AND grey level imaging
before 1995...  28 expired patents to work with for an open hardware product...