Erect image 0-90 deg spotter: How do they do it?

Started by Doug Peterson, 09/06/2006 01:59AM

Posted 09/06/2006 01:59AM | Edited 09/06/2006 02:02AM Opening Post

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Join Date: Jun 2001

Location: SANTA ANA CA, US

Posts: 361

What prism/mirror combination allows for an erect image with an adjustment range from straight thru to 90 degrees?

http://www.longperng.com.tw/product_in2.asp?id=456

They have patents on the adjustable angle erect image spotting scope in many countries. This obviously is the WO, Celestron and others' OEM.

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Posted 09/06/2006 09:10AM #1

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>>>They have patents on the adjustable angle erect image spotting scope in many countries. This obviously is the WO, Celestron and others' OEM.
----

Does WO, Celestron have adjustable angle spotting scopes? All I knew about were the fixed angle type.

Jon

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Posted 09/06/2006 03:37PM #2

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Location: Pittsburgh PA, US

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The USPTO (www.uspto.gov) has online access to recent patents. For example:

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,317,279.PN.&OS=PN/6,317,279&RS=PN/6,317,279

There you'll find a link to view images of the patent. You'll need a TIFF plug-in for your browser. See the help at the images page.

I've grabbed a diagram from the patent that shows how it's done with mirrors.

Attached Image:

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Erect image 0-90 deg spotter: How do they do it?

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