P2 FRESNEL LENS PARABOLIC MIRROR APERTURE SOLAR FRESNEL POWER CPV

March 11th, 2010 | by admin |

This is Part 2. Solar Training, Understanding optics of Parabolic Mirrors and Fresnel Lenses. Cheap Telescope astronomy. Telescope first surface mirror.

PART 1 IS HERE:

http://www.youtube.com/watch?v=QpkWTdXwTnw

Duration : 0:5:37


[youtube EAQXJ7isARU]

  1. 22 Responses to “P2 FRESNEL LENS PARABOLIC MIRROR APERTURE SOLAR FRESNEL POWER CPV”

  2. By Twinhit on Mar 11, 2010 | Reply

    Hey!
    I got one of …
    Hey!
    I got one of those $14 telescopes!
    Not too bad for looking at the moon for the price. IMHO those would make a decent inexpensive spotter apparatus.

  3. By Jarathe on Mar 11, 2010 | Reply

    fresnel |ˈfreznəl; …
    fresnel |ˈfreznəl; frāˈnel| (also fresnel lens)
    noun Photography
    a flat lens made of a number of concentric rings, to reduce spherical aberration.
    ORIGIN mid 19th cent.: named after A. J. Fresnel .

    Sorry dude. Didn’t mean to be an ass. I guess both are okay.

  4. By GREENPOWERSCIENCE on Mar 11, 2010 | Reply

    @Jarathe :-) …
    @Jarathe :-) pronounced /freɪˈnɛl/ fray-NELL

  5. By Jarathe on Mar 11, 2010 | Reply

    I love your videos …
    I love your videos dude, but it’s freSnel lens; not frenel lens.

  6. By bestamerica on Mar 11, 2010 | Reply

    why NO closed …
    why NO closed captioned in here video

  7. By blackle4ps3 on Mar 11, 2010 | Reply

    HOT makes COLD RV’s …
    HOT makes COLD RV’s use refrigerator,freezer that uses propane to heat something up and makes freezer cold solar air conditioner surfing for projects like this

  8. By jpm1316 on Mar 11, 2010 | Reply

    7070 viewer
    7070 viewer

  9. By ston932 on Mar 11, 2010 | Reply

    0.o thahts awsome …
    0.o thahts awsome wehr did you get it ? probably you did the deal of yor life or this isnt actualy an real teleskope mirior (maybe it has some kind of an extrem destortion you wont even notice for such an use(telescope miriors have to be precicse to the scale of some nanometers))

  10. By mycatwilatackyou on Mar 11, 2010 | Reply

    Thats a kick …
    Thats a kick schmidt cassegrain I would make a very nice scope with that . Someone stold my Mead 10 ” LX5 freaking thieves I hate them .

  11. By GREENPOWERSCIENCE on Mar 11, 2010 | Reply

    It is nearly …
    It is nearly perfect, there are some very very minor scuffs, I got all the finger prints off of it. This was for sale as a scrap item for $79:-)

  12. By ston932 on Mar 11, 2010 | Reply

    wtf ??? whre did …
    wtf ??? whre did you ge this hughe telescope mirrir and do you have any idea what such an miror is worth ? it hurts me to see it being used as an sun colector (i hope something is badly wrong with this mirror so it couldnt be used for an telescope anyway)

  13. By thinazzabird on Mar 11, 2010 | Reply

    Maybe the stars …
    Maybe the stars won’t go away Lashon3D.

  14. By GREENPOWERSCIENCE on Mar 11, 2010 | Reply

    :-) Thank you for …
    :-) Thank you for the nice comment and GREAT CHANNEL NAME btw.

  15. By GREENPOWERSCIENCE on Mar 11, 2010 | Reply

    Thank you for the …
    Thank you for the great information. I will add this in annotations. I figured that was what it was for. Thank you for all the info:-)

    Kind Regards
    Dan

  16. By Lashon3D on Mar 11, 2010 | Reply

    That telescope …
    That telescope mirror may have a short focal length but it is meant to be coupled with a convex secondary mirror which yields a long focal length in whats called the cassagrain design. The hole in the center is where the light goes after the light bounces aff the secondary and the image would be formed behind the main mirror. I’m guessing the mirror came from either a Meade or Celestron “Schmidt-Cassagrain” telescope. What a shame. These are excellent telescopes.

  17. By stopcraponutube on Mar 11, 2010 | Reply

    Dan & Denise should …
    Dan & Denise should have a science show on TV!

  18. By ayamejoy on Mar 11, 2010 | Reply

    I’m a little …
    I’m a little jealous at the size of your lens. Juss saying. I can’t find a page magnifyier, let alon esomething of that size

  19. By donovancrenshaw on Mar 11, 2010 | Reply

    y duz the mirror …
    y duz the mirror have a hole in the middle?

  20. By WestCoastMods on Mar 11, 2010 | Reply

    watched part 2 …
    watched part 2 learning more Thanks!

    Cheers
    LazyMan@WCM

  21. By kaje01 on Mar 11, 2010 | Reply

    I think the main …
    I think the main point here is that it’s not how focused you can get the light, but rather how much total light you can get to hit your panels. Maybe if you were using steam then it might be more important to have a hotter focal point.

    Have you thought about going into business building these things for people and getting them off the grid? If you could install a setup like that for say $10k, you could finance over 5 years and the consumer would basically get it for free.

  22. By ThrasherAleX on Mar 11, 2010 | Reply

    cool thanx man
    cool thanx man

  23. By MajinFrahma on Mar 11, 2010 | Reply

    That thing is …
    That thing is massive.

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