Recent content by andre_teprom

  1. andre_teprom

    Infra-Red optical filters: What are made of ?

    Dear berkeman,The last link you gave brings exactly what I need. In fact, I was not applying proper keywords on Google search. Thanks a lot for assistance. +++
  2. andre_teprom

    Infra-Red optical filters: What are made of ?

    Both vision systems essentially operate on the same working principle, based on reading the radiated energy emitted from a 'black body', which is a function of its own temperature. For some reason that does not matter for this subject, frequencies near the infrared range are the most suitable...
  3. andre_teprom

    Infra-Red optical filters: What are made of ?

    Dear berkeman, Thanks a lot for the prompt reply, however I do not understand what properly I need provide beyond the problem stated on previous description itself, but I´ll try answer each one of your questions, as follows I just heard from a friend who worked on projects of...
  4. andre_teprom

    Infra-Red optical filters: What are made of ?

    Dear friends, I wish know what is/are the chemical elements commonly used for build filter lens applied on moderns night vision cameras. Thanks in advance. +++
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