Where is the technology of 3d video?

Two future devices are :

Hologram film cylinder with video rate changes to film opacity. Pixels of 2000 Angstroms are 0.2 um. It is possible to make 200nm semiconductor films in a cylinder shape that is 30 inches wide. Than you look into the film cylinder and see 3D holograph animated.

Crystal ball Filled with phosphors Sm Eu S and illuminated by 3 colors of lasers (IR orange blue) to erase and write 3D phosphor suspension in oil filled crystal ball.

Not sure what you mean? Something like FPV goggles? (first hit)

I don't know if they make those in 3-D but I'd guess they do. (I've seen 3-D camera's)

George H.

Ever tried one of these?

Don't laugh, it actually works pretty good.

Not quite what I want, of course... because (1) the battery-powered-gizmo clamped to my face is a nuisance (but a pair of polarizer glasses would be OK). and (2) the input source has some kind of radio? That's a needless complication. (3) with a mono-camera source, it's kilobucks. The 'side-by-side' support for a display, isn't (if I'm reading the specs correctly) for camera output, but some kind of massaged or game-generated recording format.

The site DOES have HD cameras with impressive video output rates and under-$100 prices, which is good, but they don't plug into any recognizable display hardware, just offer 'streaming' and a picture of a 12-wire connect cable "MIPI".

You will have to use something other than USB for a signal channel. USB is designed as Host Slave, so there must always be a host ( usually a PC ) between peripherals. Of course you can use 'smaller' hosts, but you still have to have something between dumb devices like video cameras and display unit.

Digital photoframes may have host USB sockets, to read out thumb drives, that should work (they might also have USB slave socket, to dock to a computer). The recent devices are NOT just host/slave, both USB OTG and the Type C connector are intended to get beyond that limitation.

Firewire was always peer-to-peer, but there are no Firewire displays (unless you count computers) that direct-connect to a camera.

A 'plain old' video monitor nowadays has on-screen display and menu buttons, it has to have enough compute power to initialize a webcam and display a stream. Trouble is, the usual cameras are poorly documented, and so are video monitor firmwares.

A "Smart TV" maybe, but a plain old monitor only has an 8 bit microcontroller, you can't run a USB host on one of them.

The 'plain old monitor' gizmos I see handle DVI bitstreams, and a lot of 'em decode HDCP on the fly. There's some processing power other than a minimal eight-bit controller in there.

My concern, though, is more general: monitors take video in and display it, and cameras turn scenery; into video output. Why, oh why, do none of the available cameras give the same output signals that monitors accept? With the sole exception of old-style composite video, there just isn't any overlap in the camera-output options and monitor-input options.

It takes a computer-in-the-middle to do a conversion, or (worse) a chain of recording/networking/broadcasti/receiver/custom-softwre.

So what is the objection to a computer-in-the-middle anyway ? Probably even something like an Arm Teensy could do that, at minimal power and cost, but maximum flexibility.

I think quite a few point and shoot cameras are starting to have hdmi output

Oh, yeah, I've got one: Canon Powershot SX230HS. It MIGHT, with a side excursion to a computer video editor, playback a video recording to the HDMI output, but the only native capability is to show a still picture on the HDMI screen. Not a live picture, just a snapshot taken a few seconds before.

I think. The manual coverage of this feature is ... cryptic.

Binocular vision, like in a stereo microscope, is very rich, and I'd like to see it with a HD video stream, through a display that can be seen from a comfortable sitting or standing position (not hunched over a microscope, or with rubber cups on my eyes).

My old SGI Indy (20-years-ago) had 3D video, so... what happened to make the technology just vanish?