Robohub.org
 

Keeping dust off optics

by
02 March 2009



share this:

Whether lenses for machine vision, or lenses and mirrors to direct laser light, the need to keep dust off their surfaces should be obvious.

 

One likely solution is to surround the lens with a doughnut-shaped (toroidal) trough, with an outer opening at least as large as the lens itself. Compressed, filtered air would be introduced tangentially, through a jet positioned along the trough’s widest circumference, causing the air within to spin. The rate of spin would increase as the air climbed the inner wall of the trough toward the opening, and continue to increase approaching the axis of the lens.

 

There would also be a net movement of air outward through the opening. Once outside the confines of the trough, air would spray outward in an approximate disk shape. Any dust that happened to come close to the opening would be pushed off by this disk-shaped, laminar outflow, with essentially no chance that it would end up inside where it might come in contact with the lens.

 

Reposted from Cultibotics.



tags: ,


John Payne





Related posts :



Tesla’s Optimus robot isn’t very impressive – but it may be a sign of better things to come

Musk has now unveiled a prototype of the robot, called Optimus, which he hopes to mass-produce and sell for less than US$20,000 (A$31,000).
04 October 2022, by

Bipedal robot achieves Guinness World Record in 100 metres

Cassie the robot, developed at Oregon State University, records the fastest 100 metres by a bipedal robot.
03 October 2022, by and

Breaking through the mucus barrier

A capsule that tunnels through mucus in the GI tract could be used to orally administer large protein drugs such as insulin.
02 October 2022, by

Women in Tech leadership resources from IMTS 2022

There’ve been quite a few events recently focusing on Women in Robotics, Women in Manufacturing, Women in 3D Printing, in Engineering, and in Tech Leadership. One of the largest tradeshows in the US is IMTS 2022. Here I bring you some resources shared in the curated technical content and leadership sessions.
29 September 2022, by and

MIT engineers build a battery-free, wireless underwater camera

The device could help scientists explore unknown regions of the ocean, track pollution, or monitor the effects of climate change.
27 September 2022, by

How do we control robots on the moon?

In the future, we imagine that teams of robots will explore and develop the surface of nearby planets, moons and asteroids - taking samples, building structures, deploying instruments.
25 September 2022, by , and





©2021 - ROBOTS Association


 












©2021 - ROBOTS Association