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A comment on Continuous 3D Printing Possible With Transparent Polygon Scanning?. Parent comment

Re:Continuous 3D Printing Possible With Transparent Polygon ... by Someone on Monday August 05, 2019 @08:43PM (#20620903)
The patent (https://patents.google.com/patent/US7892474B2/en) doesn’t seem to mention galvanometers at all.

It uses the phrase ”digital light processing/digital micromirror device”.

I don’t know how that slash should be interpreted. If it’s “aka”, the patent doesn’t cover using prisms.

I wouldn’t bet on that, though, noting that the patent is careful to avoid the term “light”, using the broader “electromagnetic radiation” instead.

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Re:Continuous 3D Printing Possible With Transparent Polygon ... by hexa_storm on Monday August 05, 2019 @08:54PM (#20620964)
the rotating reflective polygon patent is this one US9079355 I think it is even more relevant but somehow it did not get posted. https://patents.google.com/patent/US9079355B2/en
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Re:Continuous 3D Printing Possible With Transparent Polygon ... by hexa_storm on Tuesday August 13, 2019 @02:20PM (#20688736)
claim 1 in US7892474B2... by means of mask exposure ... so prisms brings you around it.
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