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- Belay_glasses abstract "Belay glasses are eyeglasses with prismatic lenses that are used by belayers in rock climbing to avoid the neck strain commonly associated with belaying.Belaying involves a person standing on a stable platform below a rock climber controlling the tension and friction of the climber's rope. Since this activity requires craning one's neck to look up at the climber, a common malady named \"belayer's neck\" can occur. The prismatic lenses of the belay glasses are arranged so as to bend light from above through total internal reflection into the observer's eye, allowing the belayer to observe the climber while maintaining a comfortable head/neck position.The design based on the eyeglasses frame provides for a split field of vision: the central field through the lenses, providing a vertical view to the climber; the peripheral field around the sides of the lenses, allowing the belayer to remain aware of their surroundings.".
- Belay_glasses thumbnail Belay_glasses_lens.svg?width=300.
- Belay_glasses wikiPageID "46498276".
- Belay_glasses wikiPageLength "1880".
- Belay_glasses wikiPageOutDegree "8".
- Belay_glasses wikiPageRevisionID "658980183".
- Belay_glasses wikiPageWikiLink Belaying.
- Belay_glasses wikiPageWikiLink Category:Climbing_equipment.
- Belay_glasses wikiPageWikiLink Category:Rock_climbing.
- Belay_glasses wikiPageWikiLink Glasses.
- Belay_glasses wikiPageWikiLink Porro_prism.
- Belay_glasses wikiPageWikiLink Rock_climbing.
- Belay_glasses wikiPageWikiLink Total_internal_reflection.
- Belay_glasses wikiPageWikiLink File:Belay_glasses_lens.svg.
- Belay_glasses wikiPageUsesTemplate Template:Reflist.
- Belay_glasses subject Category:Climbing_equipment.
- Belay_glasses subject Category:Rock_climbing.
- Belay_glasses hypernym Eyeglasses.
- Belay_glasses comment "Belay glasses are eyeglasses with prismatic lenses that are used by belayers in rock climbing to avoid the neck strain commonly associated with belaying.Belaying involves a person standing on a stable platform below a rock climber controlling the tension and friction of the climber's rope. Since this activity requires craning one's neck to look up at the climber, a common malady named \"belayer's neck\" can occur.".
- Belay_glasses label "Belay glasses".
- Belay_glasses sameAs m.0134pkbt.
- Belay_glasses wasDerivedFrom Belay_glasses?oldid=658980183.
- Belay_glasses depiction Belay_glasses_lens.svg.
- Belay_glasses isPrimaryTopicOf Belay_glasses.