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Old 03-23-20, 12:19 PM
aka Tom Reingold
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Join Date: Jan 2009
Location: High Falls, NY, USA
Posts: 38,876

Bikes: 1962 Rudge Sports, 1971 Raleigh Super Course, 1971 Raleigh Pro Track, 1974 Raleigh International, 1975 Viscount Fixie, 1982 McLean, 1996 Lemond (Ti), 2002 Burley Zydeco tandem

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Take a look at a B&M or similar European headlight. The use of an LED illustrates that designs for filament bulbs are no longer applicable. The B&M design is brilliant. It might have been expensive to create, but is it expensive to duplicate? I don't know. It's not just the lens, it's the reflector. The B&M has its LED on top, pointing down, and the reflector turns it forward. There are many subtle curves to achieve the beam shape, and the result is that it is brightest at the top. This way, intensity does not diminish along the ground as you get farther from the headlight. It's not just a cutoff.

And maybe I'm giving more credit than necessary, but I can't help being impressed.
Tom Reingold,
New York City and High Falls, NY
Blogs: The Experienced Cyclist; noglider's ride blog

“When man invented the bicycle he reached the peak of his attainments.” — Elizabeth West, US author

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