Thursday, May 17, 2012

Panavision BSI Sensor QE

FastVision published datasheet of its recently announced FC300 camera featuring Panavision 3.2MP/180fps sensor with optional JPL BSI processing. White its peak QE is a respectable 60%, the whole spectral graph looks quite interesting:

Posted by Vladimir Koifman at 14:27

9 comments:

  1. AnonymousMay 17, 2012 at 3:16 PM

    No AR coating and/or a reflector?

    ReplyDelete
    Replies
    1. AnonymousMay 17, 2012 at 7:33 PM

      Decent mid-band QE for a 5um x 5um pixel without either (if indeed that is the case)

      Delete
  2. AnonymousMay 17, 2012 at 3:55 PM

    Hi,
    I wonder if the 180fps are correct as the sensor datasheet (DYN0021) claims only 120fps for full resolution.
    Any idea?

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  3. AnonymousMay 17, 2012 at 9:24 PM

    Cannot understand why there is a dip in the QE curve in the 500 range. Very interesting curve indeed. Maybe a problem with the filter change during measurement?

    ReplyDelete
  4. AnonymousMay 18, 2012 at 1:57 AM

    I am a bit stumped...

    The data sheet claims that the chip has 5um pixels and is capable of either rolling shuttering or global shuttering.

    But if it has the global shutter... well, then it must have a shadowed area where the sampled signal is stored...

    so if the pixel has an intentional shadow (metal shield), then why bother with the back thinning at all? it would be better off with a nice microlens on the front side and save the $$$!!!

    perhaps that is why the QE curve is so funky!

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    Replies
    1. AnonymousMay 18, 2012 at 3:06 PM

      Even with a micro lens , your fill factor is not 100%. Further it still imposes metal routing constraints, all of which are solved by backside illumination.

      Delete
  5. Dave GilblomMay 20, 2012 at 4:59 AM

    Something is odd. The specs on the camera match the specs on the Panavision website for the DYM0032 sensor (not BSI) except that the sensor datasheet quotes 51% QE at 600 nm. See - http://www.panavisionimaging.com/PDF/PB0030.pdf. If the whole depressed section were moved up 20 points so the 600 nm matched, the curve would look a little less strange.

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  6. AnonymousMay 20, 2012 at 10:32 PM

    I think that this curve is not serious... don't wast too much time on it!

    ReplyDelete

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