I made this, fun to see my project on the front page!

The main question I tend to get from hacker-types is "what are the tech specs?". The demos run on a Mac with custom software I built for projection mapping/rendering/etc. (the hand tracking uses Apple's built-in framework, which is very good), a small consumer 4k laser projector, and a basic webcam for vision.

But really, this is primarily a research/design prototype - I think it's much more important to figure out what the user experience should ideally feel like, if the interactions are even plausible & desirable in the first place; and then work backwards to the technology.

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guessmyname an hour ago | parent | next [-]

I met @heliographe a few years ago in a HN Tokyo (Slack) meeting. Happy to see you are still designing awesome things after your time at Apple. I look forward to seeing how your project(s) develop. PS: as soon as I saw the kitchen I knew this was Japan, and then I saw the hair and though —“hmm, I feel like I have seen this person before”— and it was you!!

	▲	heliographe an hour ago \| parent [-]
		Haha cheers! I should join one of those meetups again. And yes, it's funny how recognizable Japanese interiors are.

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Animats an hour ago | parent | prev | next [-]

Right. Tiny projectors have been done before. Samsung had a smartphone with a projector back in 2014, but nobody wanted it. Some startup called Moviphone has announced a new one for 2027.[1] The use cases have not been compelling and fighting ambient lighting with a small projector is always tough.

Possible use case: projecting menus, ads, and bills on restaurant tables. With a camera and enough automated layout to work around what's on the table.

It might sell to the people who buy refrigerators with displays on the door. Could be useful as a cooking training aid, like cooking videos but present where you need them.

The light bulb form factor is cute but probably not that useful. Most of the light will be aimed in non-useful directions. Look into ultra short throw projectors.

[1] https://moviphones.com/

	▲	heliographe an hour ago \| parent [-]
		It's a good thing that most inventors don't fall for the "something vaguely like this has been tried with inferior technology before, and it sucked" line of reasoning, or our world would look very different :)

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bunabhucan an hour ago | parent | prev | next [-]

>a small consumer 4k laser projector

How many watts does the projector use for how many lumens? I would be curious if these numbers plus size would be a fundamental limit to the tech.

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rtpg an hour ago | parent | prev | next [-]

Is a basic webcam really able to read text at that angle for the “what is this word” example?

I wasn’t sure if any of this was real and that example looked extremely fake to me because I had a hard time believing the device being able to read text from that distance.

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heliographe an hour ago | parent [-]

In that demo, the lightbulb sits on the desk, less than a meter away from the page. What feels implausible about this setup? This is kind of thing you can do with your smartphone today.

	▲	rtpg an hour ago \| parent [-]
		So is the demo real or is it smoke and mirrors? Could you have pointed at other words and have it work? (I think I overestimated how much of an angled shot it was the first time I saw it, on top of how easy or hard turning your finger into “actually capture this text”… but you’re totally right that in principle a camera at a non agressive angle can capture that text) (I like this overall concept a lot! Cooking is the right example, voice interfacing’s 96% use case is basically “my hands are dirty but I must use computing”)

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NetOpWibby an hour ago | parent | prev [-]

This is an awesome concept. How do you see this working across several rooms (if you've thought this far)? This would be great for when I have ideas in the shower.

	▲	heliographe an hour ago \| parent [-]
		The appeal of the lightbulb form factor is that you can mount it in a portable base to move it around the house; or in a fixed socket for broader room coverage. It's not mentioned in the piece, but for the latter I don't see any technical obstacle to having several of these in different rooms in the house, or a couple in the same room to augment coverage.