www.photomacrography.net :: View topic - Thin lens?
www.photomacrography.net Forum Index
An online community dedicated to the practices of photomacrography, close-up and macro photography, and photomicrography.
Photomacrography Front Page Amateurmicrography Front Page
Old Forums/Galleries
 
 FAQFAQ   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 
Thin lens?

 
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> General Discussion Forum and Community Announcements
View previous topic :: View next topic  
Author Message
ChrisR
Site Admin


Joined: 14 Mar 2009
Posts: 7834
Location: Near London, UK
PostPosted: Thu Oct 11, 2018 7:39 am    Post subject: Thin lens? Reply with quote
https://insights.globalspec.com/article/10056/a-first-for-flat-lenses-full-color-imaging

Some of the right side "related links" are interesting too.
_________________
Chris R
Back to top
View user's profile Send private message
MarkSturtevant



Joined: 21 Nov 2015
Posts: 374
PostPosted: Wed Oct 17, 2018 6:45 pm    Post subject: Reply with quote
I have heard about this from time to time. A cool bit is that the lens can be printed directly onto a camera sensor. If this product becomes viable, I wonder if you could wear your camera like a wrist watch.
_________________
Mark Sturtevant
Dept. of Still Waters
Back to top
View user's profile Send private message
rjlittlefield
Site Admin


Joined: 01 Aug 2006
Posts: 19259
Location: Richland, Washington State, USA
PostPosted: Wed Oct 17, 2018 9:40 pm    Post subject: Reply with quote
MarkSturtevant wrote:
A cool bit is that the lens can be printed directly onto a camera sensor.

I know that's what the narration says, but I think they've played a bit fast and loose with that idea.

My understanding is that the technology is rather like a Fresnel lens carried to the limit. It makes the lens itself thin, but does not remove the need to have the lens separated from the sensor by a distance basically equal to the lens's focal length. You could certainly cover a large sensor with an array of such lenses having short focal length, each pointing is a different direction, but then you'd run into the problem that each lens would have only a tiny aperture and thus low spatial resolution in the far field, rather like an insect's eye.

If that interpretation is not correct, I would greatly appreciate some references that could set me straight on the issue.

--Rik
Back to top
View user's profile Send private message Visit poster's website
Display posts from previous:   
Post new topic   Reply to topic    www.photomacrography.net Forum Index -> General Discussion Forum and Community Announcements All times are GMT - 7 Hours
Page 1 of 1

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum


Powered by phpBB © 2001, 2005 phpBB Group