Return to Great Lakes & Seaway Shipping Great Lakes & Seaway Shipping Online
Discussion Boards
Please click to visit our sponsor
It is currently October 21, 2021, 9:51 pm

FAQ | Instructions | Help
Search for:



Post a reply
Username:
Subject:
Message body:
Enter your message here, it may contain no more than 60000 characters. 

Font size:
Font color
Options:
BBCode is ON
[img] is ON
[flash] is OFF
[url] is ON
Smilies are OFF
Disable BBCode
Do not automatically parse URLs
Question
What is the word before the "&" in the header of this Discussion Board?:
This question is a means of preventing automated form submissions by spambots.
   
Upload attachment
If you wish to attach one or more files enter the details below.
Filename
File comment
 
   

Topic review - lighthouse optics
Author Message
  Post subject:  Re: lighthouse optics  Reply with quote
For replica lighthouse lenses, we can tell you most likely what the original optic configuration was of the Fresnel lens and can also provide a replica quote to you. Please contact us at michiganlights@gmail.com. Thanks, Jeff
Post Posted: November 19, 2010, 3:59 pm
  Post subject:  Re: lighthouse optics  Reply with quote
Also try the Maritime Museum in Marquette-they have about 4 or 5 lenses there and could probably give you more info about the Fresnel Lenses. They have the original lense there from Stannard Rock Lighthouse! You could probably get some info too from the Coast Guard.
Post Posted: November 12, 2010, 5:02 pm
  Post subject:  Re: lighthouse optics  Reply with quote
We are restoring the Grosse Ile North channel front Range Light. Structural restoration is complete. We need plans/specs for the original lens and light and any change with the opening of the Livingstone channel in 1912. We are considering a replica lens.
Post Posted: November 9, 2010, 9:30 am
  Post subject:  Re: lighthouse optics  Reply with quote
What specific type of information are you seeking?
Post Posted: October 28, 2010, 9:14 pm
  Post subject:  Re: lighthouse optics  Reply with quote
Hi Kathryn,
I guess that depends on what kind of information you are looking for, A good starting point is the Great Lakes Lighthouse Keepers Association at www.gllka.com
Post Posted: October 26, 2010, 3:43 pm
  Post subject:  lighthouse optics  Reply with quote
Where is a good source for original information on optics, lens for Great Lakes lights?
Post Posted: October 25, 2010, 9:58 am

All times are UTC - 5 hours



Return to Great Lakes & Seaway Shipping  
Copyright Boatnerd.com All rights reserved. This material may not be published, broadcast, rewritten or redistributed.
Use of this site is based on the Terms of Use
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group