12 stories tagged optics, newest first.
4 points by peter_d_sherman | 0 comments
Open-access 2024 Light: Science & Applications paper presenting a chip-based 3D printer that uses silicon photonics to project light for resin curing.
22 points by peter_d_sherman | 4 comments
Wikipedia article on the orbital angular momentum of light, a property of light beams associated with their helical wavefront structure.
163 points by cainxinth | 92 comments
An American Scientist article from 2011 examining the history and fate of holography; the capture shows only a browser verification screen.
61 points by Betelbuddy | 38 comments
Kyushu University press release on research using aerial imaging optics to let users enter virtual reality by sitting down, without wearing a headset.
411 points by moultano | 110 comments
Blog post by Ryan Moulton about colors outside typical screen gamuts and where to find them in nature, illustrated with an iridescent butterfly wing.
515 points by sebg | 56 comments
Bartosz Ciechanowski's interactive blog post explaining how cameras and lenses work and how adjustable parameters affect the resulting images.
![Screenshot of youtube.com: A laser pointer at 2B FPS [video]](https://hn.urlbox.com/shots/renders/2025/10/20/41ad08cb-c2b9-4d4f-b687-14f29a0ccefb.jpg)
574 points by thunderbong | 97 comments
AlphaPhoenix YouTube video filming a laser pointer beam at 2 billion frames per second to visualize light propagation.
533 points by zdw | 159 comments
A Dynomight blog essay explaining how the eye's three cone types sense color and how one might perceive new colors without lasers.
546 points by fouronnes3 | 217 comments
Personal blog post by Victor Poughon describing a DIY attempt to build a compact artificial sunlight lamp, inspired by DIY Perks' parabolic reflector design.
332 points by _Microft | 136 comments
Guardian news article on researchers finding that a common food dye can make skin and muscle temporarily transparent, potentially aiding detection of injuries or tumours.
359 points by FLpxpyJ | 90 comments
Homepage of Stract, an independent open-source, non-profit web search engine with customizable 'optics' for tailoring results.
345 points by johnmaguire | 69 comments
A project write-up describing how to build a near-infrared spectrometer for about $500 using an InGaAs sensor instead of a silicon camera.