Neat, but hardly a world first (the original title said "...the world’s first direct retinal projection display...")

I first read about direct retinal projection displays (using oscillating mirrors no less) in Mondo 2000 [^1]

Hard to find much on the "Private Eye" hardware as I guess Reflection Technology (the manufacturer) went outta business in the mid 90's

But a 700x280 display painted onto your retina that looked like a full-ish size display hovering in space nonetheless, and downright epic for 1989

[^1]: https://microship.com/winnelife-interview-with-steve-roberts...

For the curious, a bit more info and some pics on these sites

https://glassdevelopment.wordpress.com/2014/04/17/hmd-histor...

https://artsandculture.google.com/asset/reflection-technolog...

"TDK demonstrates the world’s first direct retinal projection display for smart glasses using a meta-optic mirror". The qualifier is different. "using a meta-optic mirror" versus "using oscillating mirrors"

I appreciate your comment on the history.

This looks strikingly similar to my 2017/20 patent:

https://kemendo.com/pdfs/USPatent10757400.pdf

Pretty much all my patents are being infringed at this point.

Lesson to anyone getting patents, they don’t matter unless you have $100M to fight Microsoft or oracle with. At that point might as well just keep your 100M and forget it

Did you file for a patent in Japan? Foreign countries are not bound by United States patents; U.S. patent rights only apply within the United States.

Fair point

TLDR: They demoed a direct retinal projection display with a thin, transparent mirror embedded in the lens, enabling glasses that look more like everyday eyewear while reducing costs compared with waveguide-based designs.

This Japanese article has a few more details: https://www.watch.impress.co.jp/docs/news/2145266.html