Lmst

Reshaping #gold into a sponge-like #nanoporous structure fundamentally alters its interaction with light, drastically enhancing its electronic properties and #optical absorption without modifying its #chemical composition.
#Physics #MaterialScience #Optics #sflorg
https://www.sflorg.com/2026/02/phy02022601.html

CSS Optical Illusions

https://alvaromontoro.com/blog/68091/css-optical-illusions

#HackerNews #CSS #Optical #Illusions #design #illusions #webdev #creativity

F-Zero X [X] Optical (Grey Oddissey) [VIDEO CLIP MUSIC © GAME ONE] (1998)

#soundtrack #FZeroX #N64 #1998 #Optical #GreyOddissey #1997 #videogame #music #retrogaming #games #gaming #clip #videoclip #videoclipmusic #GAMEONE

https://www.youtube.com/watch?v=cDwh9diuXdc

#optical : of or pertaining to vision or sight

- French: optique

- German: optisch

- Italian: ottico

- Portuguese: ótico

- Spanish: óptico

------------

Guess the next word of the hour @ https://24hippos.com

It's amazing just how much effort is #Fuji putting into their #camera #business to avoid making a decent #instax camera. With all the extensive knowledge from medium and large format camera #manufacturing, they somehow still manage to make something like Mini Evo Cinema. Why? It's essentially a digital camera with instax printer. Makes me wonder if it's really that hard to design good #optical system around the instax film? Or are the minimum effort products really enough
https://petapixel.com/2026/01/07/the-instax-mini-evo-cinema-combines-retro-inspired-video-with-instant-film/

These two are reeeally close together tho
*Squinteyes* :genshin_paimon_question_mark:

Its like that #optical #illusion dress

Adaptive Optics is a technique to compensate quickly varying optical aberrations in an #optical system 🔭. A limitation is that the correction is only valid in a very small patch of sky 🌌. Multi-Conjugate Adaptive Optics, or #MCAO uses several guide stars ✨ to measure the light wave aberrations in several directions. The corrected field of view is enlarged by a factor of 10 to 20 to obtain the most uniform output image quality https://mavis-ao.org/mavis/

#MAVIS #AdaptiveOptics #ESO #VLT

Looking for more insights into the stepper motors i looted.
And learning how to work with arduinos.

All steppers have US Digital optical Sensors attached. ( E5 Motor Encoder )

Thanks to their docu i could connect it to the nano.
Next to 5v and gnd it has three pins.
A, B and I
A is toggled x Times per Revolution. As is B with an offset to A.
I only once or twice

To verify my understanding, i let it toggle the nano's led

#arduino #sensor #optical #motor #encoder

Stepper motor sensor connected to arduino via breadboard

:microsoft: Microsoft's new Light-Based Computer is inspired by 80-Year-old Technology.

⁉️It could make AI ~ 100 times more efficient.⁉️

Microsoft researchers developed a prototype analog optical computer [AOC] that can perform some tasks that an AI might be used for, as well as optimization problems.

https://news.microsoft.com/source/features/innovation/microsoft-analog-optical-computer-cracks-two-practical-problems-shows-ai-promise/

#microsoft #analog #optical #computer #aoc #ai #computing #science #engineer #media #tech #news

⁉️A computer that uses light rather than digital switches for calculations could help reduce the energy demands of artificial intelligence [AI], according to a new study. The scientists who invented the computer describe it as a new computing paradigm.⁉️

The new computing system could one day solve certain problems faster and with less energy than modern digital computers are capable of, the scientists wrote in the study.

"The most important aspect the AOC delivers is that we estimate around a hundred times improvement in energy efficiency," study co-author Jannes Gladrow, an AI researcher at Microsoft, said in a Microsoft blog post. "That alone is unheard of in hardware."

<https://www.diskontinuum.de/>

👾In the new study, Microsoft researchers built a computer that uses micro-LEDs and camera sensors to perform calculations.👾

Unlike regular digital computers, which flip billions of tiny switches to perform calculations, the new system uses light and voltage of different intensities to add and multiply numbers in a feedback loop. The [AOC] computes a problem many times, each time improving on the last, until it reaches a "steady state," or final solution.

[ImageSource: Chris Welsch for Microsoft]

👾A new, light-based computing paradigm.👾

The team also programmed a "digital twin" — a computer model that mimics the physical AOC's computations. This digital twin can be scaled up to handle more variables and more complex calculations. "The digital twin is where we can work on larger problems than the instrument itself can tackle right now," Michael Hansen, senior director of biomedical signal processing at Microsoft Health Futures, said.

<https://www.microsoft.com/en-us/research/people/mihansen/>

The team first had the AOC run some simple machine learning tasks, such as classifying images. The physical AOC performed about as well as a digital computer. Then, the researchers used the AOC digital twin to reconstruct a 320-by-320-pixel brain scan image using just 62.5% of the original data. The digital twin accurately reproduced the scan — a feat the scientists say could lead to shorter MRI times.

⁉️Finally, the team used the AOC to solve a series of financial problems that involved finding the most efficient way to exchange funds between multiple groups while minimizing risk, with a higher success rate than existing quantum computers.⁉️

"Our goal, our long-term vision is this being a significant part of the future of computing," Hitesh Ballani, a researcher in Microsoft's Cloud Systems Futures team, said.

<https://www.microsoft.com/en-us/research/people/hiballan/>

A modern tale of blinkenlights by Damien Cauquil ( @virtualabs ) & Thomas Cougnard ( @Xilokar ) #firmware #smart #hardware #bluetooth #whad #devices #wireless #optical #led #data #leakage #equipments [ https://blog.quarkslab.com/modern-tale-blinkenlights.html ] #informatique ( via https://infosec.exchange/@quarkslab )

« These LEDs were often called blinkenlights, a name coming from an old WWII joke, and most of them were simply driven by the transmit & receive data lines of such equipment. »

All done with Mom's eye diagnostics appointment. We're back at this office on Friday to start her eye injections for diabetes related retinol disease. We've been given a referral to a cataracts specialist - Mom has cataracts in both eyes & will need surgery at some point.

#ophthalmologist #Optical #EyeHealth #medical #WearAMask

An optician examines a patient's eyes using medical equipment and procedures in an eye clinic, with another image of a patient undergoing eye examination, and a doctor performing a medical test with a machine on a patient.

Mom, #spooning at eye clinic.

#ophthalmologist #Optical #EyeHealth #medical #WearAMask

Mom wearing a face mask in an eye doctor's chair holds two black eye testing tools over her eyes, one with a single hole and the other with multiple holes. She is wearing a light quilted vest over a gray sweatshirt, and jeans. The room is an eye doctor's office with medical equipment, a monitor, and a white wall.

A Seattle-area #semiconductor startup is going global: #Lumotive has opened offices in Oman and Taiwan that will help the company speed the adoption of its #optical chips for laser-based 3D sensing systems and other applications. https://www.geekwire.com/2025/lumotive-oman-taiwan-lidar-sensor-chips/ #Lidar #Tech #Metamaterials #Beamforming

Photo of Lumotive's 3D sensing module with golf ball included for size comparison

The mouse cleaned up rather nicely (on right). I got this one for the mousepad but it's a Sun-3 mouse, so if I ever somehow manage to land a 68K-based sun workstation I'll have a mouse for it too at least!
#sun #mouseSystems #optical (tagged so i can find the post again)

RE: https://soc.megatokyo.moe/objects/0c81fa2a-449d-49cb-9cc8-749e6b269288

Two Mouse Systems model M4 optical computer mouses from the 1980's, both with Sun Microsystems branding, on a large matching 200 DPI optical mouse mousepad. One is significantly less yellowed than the other. The most yellowed one is so tan that it is almost brown.

Công cụ chọn khung mắt phù hợp được phát triển sau 5 năm làm việc với thợ mắt. Dùng trí tuệ nhân tạo để phân tích và đề xuất khung mắt phù hợp với khuôn mặt, kích thước và độ phức tạp của độ cận. #khungmắt #thTrivia #trítuệnhân tạo #mắt #sứckhỏemắt #optical #glasses #fashion

https://www.reddit.com/r/SideProject/comments/1p5jkog/after_5_years_working_with_opticians_i_built_a/

[en] How small could optical computers get?

"... #research ... addresses one of the key challenges to #engineering computers that run on #light instead of #electricity: making those devices small enough to be practical. Just as algorithms on digital computers require time and memory to run, light-based systems also require resources to operate ..."

"... researchers found inspiration in a deep-learning technique called 'neural pruning' ..."

"... an optical #computing system performing the same task could be 1% to 10% the size of its conventional counterpart. ... a free-space #optical setup could, in principle, perform computations ... in a device roughly 1 [cm] thick."

https://news.cornell.edu/stories/2025/11/researchers-reveal-how-small-optical-computers-could-get

#opticalcomputer #lightbasedsystem #deeplearning #neuralpruning
#ResearchHighlights

Researchers at the University of Rochester have designed and demonstrated a new #optical component that could significantly enhance the brightness and image quality of augmented reality (#AR ) glasses.
#Technology #sflorg
https://www.sflorg.com/2025/11/tech11112501.html

The 33rd #HongKong #International #Optical #Fair is scheduled for November 5-7, 2025, at the #HK #Convention and #Exhibition #Centre, organized by the Hong Kong #Trade #Development Council (#HKTDC) and co-organized by the Hong Kong Optical #Manufacturers Association. This #event will host more than 660 #exhibitors from 19 countries and regions, emphasizing #innovations in #eyewear #design, #technology, and #sustainability. https://cnbusinessforum.com/hong-kong-international-optical-fair-2025-to-showcase-global-eyewear-innovation/

Take a ride

https://lemmy.world/post/38355684

#OPTICAL

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