John PoolePublished: Python → generates 3D Fresnel zone volume + LOS between two points and exports KML/KMZ for Google Earth. Great for quickly seeing whether “it should work” and why it doesn’t.
https://github.com/jlpoolen/3D_fresnal_line_of_sight
MikeNew London Harbor Lighthouse, 8/17/25. View from the lantern room. This lighthouse still has the fourth order Fresnel lens that was installed in 1857. #NewLondonHarborLighthouse #pequotlighthouse #fresnel #fresnellens #lighthouse #phare #faro #leuchtturm #灯台 #todai #newengland #connecticut #newlondon
Phil. ShapiroMagnifying the Motorola Droid
Magnifying the Motorola Droid
Scientific PascalIssue #125 of Blaise Pascal Magazine is available. Topics include updates on project #Fresnel, reducing code with scoped objects in #Pascal, information on the new #Lazarus handbook, an outlook on the Pascal conference 2025 etc.
Eduardo MoraReducing costs in solar heat: A comparative study of rotatory #Fresnel and #parabolic trough systems
Nobska Light, Woods Hole, MA: 8/21/2024. Photos of the lighthouse interior that I took during the twilight tour that I enjoyed last summer.
Photo 1: The spiral staircase leading up to the lantern room.
Photo 2: View from the top. Note the lighthouse-shaped finial.
Photo 3: The fourth-order Fresnel lens.
#nobskalighthouse #capecod #spiralstaircase #stairs #finial #fresnel #fresnellens #lighthouse #phare #faro #leuchtturm #灯台 #todai #falmouthMA #falmouth #woodshole
Photo 1: The spiral staircase leading up to the lantern room.
Photo 2: View from the top. Note the lighthouse-shaped finial.
Photo 3: The fourth-order Fresnel lens.
#nobskalighthouse #capecod #spiralstaircase #stairs #finial #fresnel #fresnellens #lighthouse #phare #faro #leuchtturm #灯台 #todai #falmouthMA #falmouth #woodshole
New Akranes Lighthouse (Akranesviti), July 2018
The New Akranes Lighthouse was activated in 1947, and is 85 feet tall. It replaced the smaller (69’) Old Akranes Lighthouse that stands a short distance away.
Photo #1: The lighthouse with the Old Akranes Lighthouse in the background.
Photo #2: A not so great photo of the Fresnel lens.
Photo #3: An awesome photo of a resident cat.
#akranes #akraneslighthouse #fresnel #cat #iceland #lighthouse #phare #faro #leuchtturm #灯台 #todai
The New Akranes Lighthouse was activated in 1947, and is 85 feet tall. It replaced the smaller (69’) Old Akranes Lighthouse that stands a short distance away.
Photo #1: The lighthouse with the Old Akranes Lighthouse in the background.
Photo #2: A not so great photo of the Fresnel lens.
Photo #3: An awesome photo of a resident cat.
#akranes #akraneslighthouse #fresnel #cat #iceland #lighthouse #phare #faro #leuchtturm #灯台 #todai
DoomsdaysCW@RoboticistDuck @jblue I did find some articles about #Fresnel technology (once used in lighthouses) being incorporated into solar designs.
Kingsley Uyi IdehenOntology for visual "Context Lenses" via #fresnel: http://linkeddata.uriburner.com/about/html/http/www.w3.org/2004/09/fresnel #linkeddata
Unofficial PetaPixel BotProfoto Fresnel Small Promises Nostalgic, Cinematic Portrait Light https://petapixel.com/2024/06/18/profoto-fresnel-small-promises-nostalgic-cinematic-portrait-light/ #portraitlighting #fresnellens #portraiture #Equipment #lighting #fresnel #profoto #News
