The discussion in another thread indicated the H-ortho was a modified Abbe type that would be an improvement on the Abbe design, but which
wasn't a commercial design, just as in the book Telescope Optics, where improvements to the Erfle and other designs were suggested.
It is certainly possible some company has made the design, but I've seen the number of orthoscopic eyepieces dwindle with each passing year.
And the ones from the same outfit in Japan that has made them for years are a classic Abbe design.
Given modern glass type availability, and computer design, it is certainly possible to improve on the older designs where edge correction is concerned.
I just doubt there is any economic incentive to do so for designs like Kellner, Erfle, Plössl, Brandon, König, etc. when the market seems to be entranced
with wider apparent fields and longer eye reliefs.
I heard a rumor that TeleVue had designed a line of long eye relief 52° super-planetary eyepieces but decided not to make them because they thought they wouldn't sell.
If that's true, given the difference in the sales of their Plössls and Delites, I think they were wise to put the project on the shelf.
Each year, astrophotography grows stronger and visual observing shrinks. Each year the number of new eyepieces is a small number compared to the number of older
ones going out of production. Astronomy equipment sales boomed during the pandemic (which isn't over), but the number of eyepiece offerings went down.
My Buyers Guide from 2007 have several hundred more eyepieces on it than now.
I would stand in line to buy a line of 85° eyepieces with 18mm or more of eye relief, and spend Ethos prices but are there enough people like me to justify a line?
I talk to a lot of older observers who wear glasses in their daily lives, but remove them to observe. The sale of Morpheus eyepieces tells me there is a market at $300.
Is there a market at $600? I don't know.
At some point, the visual observing market will shrink precipitously due to older observers dying off. I think we're already seeing it. I've heard about a number of telescopes
recently purchased at estate sales. It's hard to know for sure since the supply chain interruptions have meant a shortage in telescopes and eyepieces.
But I think that is one of the reasons why the number of new eyepiece offerings each year has been going down, and when I say that, I exclude the numbers of rebrandings
of exactly the same eyepieces that have been offered for years under other labels.
A number of the ray-traced designs on Vlad Sacek's pages are not offered for sale. Not that surprising.