Subject

   I'm new to optics so bear with me, but what  is a diascope?

I've looked everywhere for some form of definition and finally had to
register here just to ask since I can't find any info aside from
product descriptions, none of which say what the heck makes a diascope
a diascope.

Thanks for your help!

Similar Threads: "what is a diascope?"
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pickles Members Profile Send Private Message Find Members Posts Add to Buddy List Optics GrassHopper Joined: November/06/2009 Status: Offline Points: 2	I'm new to optics so bear with me, but what is a diascope? I've looked everywhere for some form of definition and finally had to register here just to ask since I can't find any info aside from product descriptions, none of which say what the heck makes a diascope a diascope. Thanks for your help!

JGRaider Members Profile Send Private Message Find Members Posts Add to Buddy List Optics Master Joined: February/06/2008 Status: Online Points: 1504	A diascope Is Zeiss' brand of spotting scopes. Search on this site for more info.

pickles Members Profile Send Private Message Find Members Posts Add to Buddy List Optics GrassHopper Joined: November/06/2009 Status: Offline Points: 2	I have searched on this site and nobody says what one is. I assume Zeiss is calling them diascopes for a reason, right?

JGRaider Members Profile Send Private Message Find Members Posts Add to Buddy List Optics Master Joined: February/06/2008 Status: Online Points: 1504	Try this link, or copy and paste: http://swfa.com/Zeiss-Spotting-Scopes-C501.aspx Edited by JGRaider - November/06/2009 at 11:30

jonoMT Members Profile Send Private Message Find Members Posts Add to Buddy List Optics Master Extraordinaire Joined: November/13/2008 Location: Montana Status: Offline Points: 4814	Because they were designed by Portuguese optics engineer Jose Dias to be used during the day (dia) and were based on research performed on dialysis patients.
	Reaction time is a factor...

Terry Lamb Members Profile Send Private Message Find Members Posts Visit Members Homepage Add to Buddy List Optics Apprentice Joined: January/19/2009 Location: Sagle, Idaho Status: Offline Points: 150	And, furthering research done by JonoMT above, I found the following quote from a patent which definitely clears it up for me: "diascope switch means operably connected with an output of said comparison amplifier means for selectively by-passing said iris driving voltage to ground, for disabling said iris driving circuit."
	Terry Lamb

zeissoem2 Members Profile Send Private Message Find Members Posts Add to Buddy List Optics Apprentice Joined: March/18/2007 Location: Norway Status: Offline Points: 119	My simple thoughts is that it is maybe a Dia(lyt roof prism) scope

john thompson Members Profile Send Private Message Find Members Posts Add to Buddy List Optics GrassHopper Joined: December/11/2011 Status: Offline Points: 1	A Diascope is an Optical Lantern. The instrument is described in Intermediate Physics by C J Smith, Edward Arnold & Co, London 1932 and many reprints. The text describes the optical construction of this instrument and its close cousin the Epidiascope. Both of these insruments are now museum pieces, and the former term has been adopted for a particular kind of telescope.

3_tens Members Profile Send Private Message Find Members Posts Add to Buddy List Optics Jedi Master Joined: January/08/2007 Location: Oklahoma Status: Offline Points: 7509
	Folks ain't got a sense of humor no more. They don't laugh they just get sore. Need to follow the rules. Just hard to determine which set of rules to follow Now the rules have changed again.