Switch to English Language Passer en langue française Omschakelen naar Nederlandse Taal Wechseln Sie zu deutschen Sprache Passa alla lingua italiana
Members: 70,592   Posts: 1,546,001   Online: 930
      
Results 1 to 2 of 2
  1. #1
    Mustafa Umut Sarac's Avatar
    Join Date
    Oct 2006
    Location
    İstanbul - Türkiye
    Shooter
    35mm RF
    Posts
    3,843
    Images
    108

    Most basic diy lens / shrink glass with uv

    4684222 If you read this patent from google patents , you will learn the most basic anamorphic lens making technology.
    This is from Corning Glass dated 1987.
    There are some glasses which turn to opac state with uv light .
    When they are going to opac , they shrink.
    You have to make a circular mask and put on to the flat special glass.
    Glass is cut circular and there is a circular glass zone around the circular masked glass.
    All glass is flat piece and no molded , no grinded.
    When you put actinic uv light on to the unmasked glass zone , it turns to opac and shrink.
    When around of masked glass circle shrinked , the central area turns to bumped glass and become a lens.
    i think this can be applied to plastics also.

    Best ,

    Mustafa Umut Sarac

  2. #2
    menelajas's Avatar
    Join Date
    Jun 2008
    Shooter
    Medium Format
    Posts
    26
    Thanks Mustafa.



 

APUG PARTNERS EQUALLY FUNDING OUR COMMUNITY:



Contact Us  |  Support Us!  |  Advertise  |  Site Terms  |  Archive  —   Search  |  Mobile Device Access  |  RSS  |  Facebook  |  Linkedin