Skip to content
  • Home
  • Who we are
  • Download
  • Collaborate
  • Cookie Policy
  • Sign in
  • Login
The Grattavetro
  • WORKING MIRRORS
    • Environment and tools
    • Techniques
    • Materials and abrasive
    • Roughing and grinding
    • Polishing
    • Parabolizzazione
    • Correction of defects
    • Secondary mirror
    • Constructive Report
    • Science and Technology
  • OPTICAL MEASUREMENTS
    • theoretical aspects
    • Foucault Test
    • Ronchi Test
    • Interferometria
  • DOBSON
    • Projects and dimensioning
    • building elements
    • Handling and transport
  • FORUM
    • presentations
    • Processing parabolic mirror
    • Optical Test
    • DIY
    • The board of Grattavetro.
    • Manifesto of Grattavetro
  • WORKING MIRRORS
    • - Environment and tools
    • - Techniques
    • - Materials and abrasive
    • - Roughing and grinding
    • - Polishing
    • - Parabolizzazione
    • - Correction of defects
    • - Secondary mirror
    • - Constructive Report
    • - Science and Technology
  • OPTICAL MEASUREMENTS
    • - theoretical aspects
    • - Foucault Test
    • - Ronchi Test
    • - Interferometria
  • DOBSON
    • - Projects and dimensioning
    • - building elements
    • - Handling and transport
  • FORUM
    • - presentations
    • - Processing parabolic mirror
    • - Optical Test
    • - DIY
    • - The board of Grattavetro.
    • - Manifesto of Grattavetro

Tag Archives: Foucault

Home / Posts Tagged: Foucault

Mirror Newton Ø250F5; Diary of realization (4)

Dec 28, 2014Giulio TiberinI Constructive Reportself-construction, Foucault, parabolic mirror

PART FOUR AND LAST: NOTE: Clicking on the images You gets his magnification, often helpful to appreciate the details that are in practice the object of this work.   Today is the 7 March 2009 START I start polishing the amateur work abandoned 4 February for "paid" business reasons . Resume in hand then the mirror whose

Read More

Preparatory phase in the Foucault test (III)

Sep 14, 2014Giulio TiberinI Foucault Test Foucault, parabolic mirror

NOTE for those who are going to read this article already having previously read the two articles 1) “FOUCAULT TEST; what is it and how to function” e 2) “Setup del test in Foucault”, it will be interesting to find an answer to the question that arises spontaneously, which is: “But when the test should begin to perform

Read More

FOUCAULT TEST; what is it and how it works. (And the more )

Sep 11, 2014Giulio TiberinI Foucault Test Foucault

The TEST AMATORIALI The need to perform the tests on the optical processing in, typically with parabolic reflective surface for Newtonian telescopes, It is designed to be able to see them with the presence of any of the relevant mirror surface shape errors, and of these errors get the QUANTITY ', in order to study and apply

Read More

Foucault test setup (II)

Aug 9, 2014Giulio TiberinI Foucault Test Foucault

For those looking for ideas to gear up realizing what it takes to lead the Foucault test, I present a gallery of images of my way to work. The environment must be a room with the temperature as constant as possible, and a length of at least a meter and a half more than twice the focal length

Read More

The Mask of Couder (IV)

Jul 7, 2014Giulio TiberinI Foucault Test Couder , Foucault, Test

The WHAT, the reason why', the WHEN and HOW: Let's start from WHAT: The Couder mask is a technical tool of cardboard, or other stiff and Matt material, that prepended to the parabolic mirror in construction to perform on it the Foucault test, It serves to measure the radius of curvature Rdc of the various annuli

Read More

A Foucault Tester homemade

Jul 6, 2014Massimo MarconiFoucault Test Foucault, optics, tester

A Foucault Tester, with fixed light source fixing to be carried out with devices which commonly have at home (webcam and a pen / USB stick ) screwdriver , hacksaw and simple components purchased from Brico with little expense. below of the components you found the exploded, assembly instructions, list of materials and some support attachments.

Read More

LOGIN

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org

Media RSS

  • MediaRSS Icon Media RSS

Latest Active Topics

  • A possible test “live” for paraboloids?
    2 years, 3 months ago
  • Newton 16″Newton 16
    3 years, 3 months ago
  • Bath interferometer
    3 years, 3 months ago

Recent

  • Giulio TiberinI on A possible test “live” for paraboloids? 2 years, 3 months ago
  • Mogi Massimo Vicentini on A possible test “live” for paraboloids? 2 years, 3 months ago
  • Giulio TiberinI on A possible test “live” for paraboloids? 2 years, 3 months ago
  • Search topics on Newton 16″Newton 16 3 years, 3 months ago

FORUM VIEWS

  • I try too - 26,572 views
  • Primario Cassegrain RC 300 - 24,934 views
  • Building a Cassegrain - 21,202 views
  • Secondary Ritchey-Chrétien telescope - 18,591 views
  • Hi everyone - 18,052 views

Who's Online

1 visitors online now
1 guests, 0 members
Theme by Think Up Themes Ltd. Powered by WordPress.
  • Home
  • Who we are
  • Download
  • Collaborate
  • Cookie Policy
  • Sign in
  • Login
We use cookies to make sure you can have the best experience on our website. If you continue to use this site we assume that you will be happy.Ok