Завантаження...

Magnifying-fresnel-lens
 

 

 

This photo was viewed 0 times and was downloaded in full size 0 times.

This photo was liked 0 times

Source page: http://commons.wikimedia.org/wiki/File:Magnifying-fresnel-lens.jpg
Description
English: model showing a magnifying Fresnel lens commercialized in the 1980s as a device to place before small TV screens to make the objects they display appear bigger. Rotor DB (talk) 23:14, 18 February 2009 (UTC)
Date 18 February 2009(2009-02-18) (first version); 18 February 2009(2009-02-18) (last version)
Source Transferred from en.wikipedia; transferred to Commons by User:Teratornis using CommonsHelper.
Author Original uploader was Rotor DB at en.wikipedia
Permission
(Reusing this file)

CC-BY-SA-3.0.

Licensing

w:en:Creative Commons
attribution share alike
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must attribute the work in the manner specified by the author or licensor (but not in any way that suggests that they endorse you or your use of the work).
  • share alike – If you alter, transform, or build upon this work, you may distribute the resulting work only under the same or similar license to this one.

Original upload log

The original description page is/was here. All following user names refer to en.wikipedia.

  • 2009-02-18 23:24 Rotor DB 1536×1152× (716514 bytes) better composition of the image
  • 2009-02-18 23:14 Rotor DB 1280×960× (493830 bytes) model showing a magnifying fresnel lens commercialised in the 80ies as a devise to place before small tv-screens to make the appear bigger. ~~~~


Licensing:
Creative Commons Attribution-Share Alike 3.0 Unported

Comments

Only registered users can post comments. Please login



EXIF data:
File name magnifying-fresnel-lens.jpg
Size, bytes 716514
Mime type image/jpeg
The images at Free-Photos.biz come mainly from Wikimedia Commons or from our own production. The photos are either in the public domain, or licensed under free linceses: Free-Photos.biz license, GPL, Creative Commons or Free-Art license. Some very few other photos where uploaded to Free-Photos.biz by our users and released into the public domain or into free usage under another free license (like GPL etc.)

All photos in average size can be saved by everyone without registration (by right-clicking) - and all photos can be downloaded in full-size and without the big watermark by members (by left-clicking) (registration and free membership required).

While the copyright and licensing information supplied for each photo is believed to be accurate, Free-Photos.biz does not provide any warranty regarding the copyright status or correctness of licensing terms. If you decide to reuse the images from Free-Photos.biz, you should verify the copyright status of each image just as you would when obtaining images from other sources.


The use of depictions of living or deceased persons may be restricted in some jurisdictions by laws regarding personality rights. Such images are exhibited at Free-Photos.biz as works of art that serve higher artistic interests.

christianity portal