Retroreflector
If you’re looking at it from the correct side, the reflection will always be centered on your eye or, in the case of photographs, on the lens of the camera.
optics
Image deblurring using inertial measurement sensors
Interesting paper from Neel Joshi, Sing Bing Kang, C. Lawrence Zitnick, Richard Szeliski at Microsoft Research, describing how they mounted 3 gyroscopes and a 3-axis accelerometer on a DSLR to record the camera’s motion while a picture is being taken, and used that data to automatically deblur the resulting image at the software level. From their abstract:
Glass lens doorknob gives preview of room beyond
Probably not all doors should offer previews, all the time, but this is undeniably wonderful. As it is, the knob offers bi-directional viewing; I wonder if you could half-silver one side and make it one-way? Johnny Strategy at Spoon & Tomago writes:
In conjunction with Design Tide Tokyo, architect Hideyuki Nakayama – a protégé of Toyo Ito -　has teamed up with UNION, a manufacturer of door handles and levers, to create a glass globe doorknob. As you approach the doorknob you catch a glimpse of what appears to be another world, waiting for you to enter and join, but in fact is a reflection of the room on the other side of the door.
[via Gizmodo]
Mechanically dimmed fluorescent lamp
In a purely practical sense, this idea is kind of goofy since electric lights can, in general, be dimmed, you know, electrically. However, and if my understanding is correct, that’s a little trickier with fluorescent lighting. It can be done, but it’s considerably more complicated than with incandescent bulbs, and there are problems maintaining a consistent color temperature. Even though it’s not exactly ground-breaking, then, I still really like this mechanically-dimmed lamp by designer Camille Blin, at least in part because it reminds me of the cool tunable neutral density filters (e.g. below) I used to play with on the optics bench in grad school. [via NOTCOT]
Attach an SLR lens to an iPhone with the Phone-O-Scope
Camera hacker Bhautik Joshi, who brought us the brilliant DIY tilt-shift lens hack, has produced another great optical device. Detailed instructions on his site walk you through the creation of the Phone-O-Scope, an optical coupler that allows an iPhone to accept a standard SLR lens.
Bokode at Home
Fascinated by MIT’s Bokode data tag system, maker Matthew Borgatti decided to recreate the effect at home using easy to find materials.
Teaching mirrors new tricks
Andrew Hicks, a mathemagician at Philadelphia’s Drexel University, has lately made headlines with one of those head-slappingly simple, brilliant, OMG-why-didn’t-I-think-of-that sort of projects: He makes mirrors. Not the run-of-the-mill flat mirrors most of us use every day for identifying vampires, but totally unorthodox, heretical, downright blasphemous mirrors with convoluted surfaces that do tricks I didn’t […]
