Tuesday, 18 June 2019

Infrared astronomy faces a gap

In late 2016 I noted that the James Web infrared space telescope was two years away (in this post) but it now seems that the launch has been pushed back to March 2021 at the earliest. This delay means that there will be a gap in infrared observation capabilities, as the Spitzer is set to cease operation over a year before that.

More information on this can be found on the Scientific American web site.

Friday, 24 May 2019

Photocrowd IR competition

Occasionally photo communities ask for, and sometimes rate, infrared photographs. DP Review have done it in the past and I selected one of their winners for the 2010 Infrared 100 exhibition.

Just launched is one for Photocrowd. If you're a member, or want to join, you can submit photos and rate others. In this case the contest finishes on the 28th. Anyone can view the entries. The ones so far include some interesting ones as well as some strange ones, some of which are (IMHO) not even infrared images! But worth a peruse.

Go to www.photocrowd.com/photo-competitions/infrared-1-technique-photo-contest-5980/.

Wednesday, 13 March 2019

Injections can give you near-infrared vision

Scientists in China and the USA have developed a technique to extend the range of vision by injecting nanoparticles behind the retina (so without any external technology). These particles bind to the photoreceptors in the eye and can convert low energy (near-infrared) photons to a higher energy (green). This has been demonstrated to allow mice to add near-infrared to their range of visible 'colours' with no side-effects.

I first came across this in New Scientist: Mice given ‘night vision’ by injecting nanoparticles into their eyes ... but the full paper is also available online via Cell.com.

One interesting thing about this is that a transfer of energy also occurs in photosynthesis, between types of chlorophyl) and in sensitising film to accept longer-wavelengths.

[Ma et al., Mammalian Near-Infrared Image Vision through Injectable and Self-Powered Retinal Nanoanten- nae, Cell (2019), https://doi.org/10.1016/j.cell.2019.01.038]

Monday, 25 February 2019

Presentation at RPS Bristol April 13th

I have arranged to give a talk about infrared photography at the amazing new RPS building in Bristol. It will be at 1400 on Saturday April 13th, lasting about an hour and a half.

The RPS are at: RPS House, 337 Paintworks, Bath Road, Bristol, BS4 3AR

More info here: rps.org/events

Tickets are £10 (£8 for RPS members) and £6 for concessions.

I hope to see you there.

Monday, 11 February 2019

What ... no comments

Sorry, but I have decided to remove the comments facility. For the past year or so almost every comment posted has been spam, presumably designed to help someone else's SEO, and not adding anything to what I have written.