Go Back  Bike Forums > Bike Forums > Advocacy & Safety
Reload this Page >

Adaptive headlights on cars

Notices
Advocacy & Safety Cyclists should expect and demand safe accommodation on every public road, just as do all other users. Discuss your bicycle advocacy and safety concerns here.

Adaptive headlights on cars

Old 02-15-24, 01:11 PM
  #1  
addict
Thread Starter
 
motion sickness's Avatar
 
Join Date: May 2004
Location: Portland, OR
Posts: 107

Bikes: Bikes, lotsa bikes. Oh, and I got a Kazoo. Best bike ever.

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 2 Post(s)
Likes: 0
Liked 1 Time in 1 Post
Adaptive headlights on cars

I live in the US, where regulations currently allow for adaptive headlights, but the specs are so strict that none of the systems currently available in the rest of the world can meet them. From what I've read, AHS (Adaptive Headlight Systems) use an array of LEDs that can be controlled independently to essentially allow for high beam use at all times, with the array sensing other (motor) vehicles on the road, and creating a dimmer lighting envelope around the vehicle to eliminate glare for other drivers.

Every article I've read touts reduced glare for other drivers, while allowing for increased visibility of pedestrians and cyclists. While this sounds great for all the drivers involved, I'm wondering about the blinding glare that would be encountered by pedestrians walking near the road, or cyclists operating on the road.

Since US standards are so strict as to essentially eliminate the option, I don't have any experience with AHS. Can anyone living where it is available comment on this?
motion sickness is offline  
Old 02-28-24, 02:28 PM
  #2  
Senior Member
 
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 38,664

Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter

Mentioned: 140 Post(s)
Tagged: 1 Thread(s)
Quoted: 5766 Post(s)
Liked 2,538 Times in 1,404 Posts
You've touched on a problem I've noticed for years.

Old style headlights had sophisticated lenses, combined with the ability to aim independently. This allowed light to be where needed without spilling beyond.


For example, my lights had a stepped cutoff pattern, lighting higher on the right to illuminate pedestrians and signs, and lower on the left to avoid blinding oncoming traffic.

Newer lights lack these optics, producing a conical beam similar to a flashlight, and are fixed to the car so they cannot be aimed precisely. They blind drivers, yet don't do a good job in the critical places on the right.

Adaptive is nice, if we assume that drivers are either too stupid or inconsiderate to drop high beams (and, yes, some are), but I greatly prefer to manage my own, and the loss of quality optics is a miserable tradeoff.

Last edited by FBinNY; 02-28-24 at 03:07 PM.
FBinNY is offline  
Old 02-28-24, 03:40 PM
  #3  
Senior Member
 
Join Date: Jul 2005
Posts: 5,989
Mentioned: 26 Post(s)
Tagged: 0 Thread(s)
Quoted: 2493 Post(s)
Liked 738 Times in 522 Posts
I could swear this o.p. with the exact same wording was thrashed just recently. Hmmm. There is no way that a lighting system can predict and/or react to the complex rolling and jouncing motions of a car at speed on the road. We just don't have computers fast enough ... well we do have those but, really, just how much computer horsepower do you really want to put behind a ... headlight. That's why probably every post in this thread had to be deleted. It's a triggering o.p. that is bound to get people riled and bothered as they try to ponder the imponderable.

Nor do I agree that modern headlights no longer have shaped beams. They do. But modern vehicles are DOUBLE the height above the ground as legacy transportation and the mix of the two creates the problem. "Low" beam on a late model F150 is shining right into the cabin of a mid-90's Honda Accord. I remember the days when you would be pulled over and cited for having an improperly aimed headlight or just one operating headlight. I routinely see operators with NO headlights and, of course, I see the hooligans with the blue tinted 6000L HID lights AND blue tinted foglights running as well. LEO doesn't get near those folk. But I'm at a loss to know where this thread is going. I do think the earlier iteration tried to tie it to bicycling somehow.
Leisesturm is offline  
Old 02-28-24, 07:32 PM
  #4  
Senior Member
 
Troul's Avatar
 
Join Date: Oct 2013
Location: Mich
Posts: 7,354

Bikes: RSO E-tire dropper fixie brifter

Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Liked 2,946 Times in 1,906 Posts
Audi & Ford are the worst for blinding others.
__________________
-Oh Hey!
Troul is offline  
Old 02-29-24, 09:42 AM
  #5  
Grupetto Bob
 
rsbob's Avatar
 
Join Date: Sep 2020
Location: Seattle-ish
Posts: 6,186

Bikes: Bikey McBike Face

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 2568 Post(s)
Liked 5,599 Times in 2,906 Posts
Originally Posted by Troul
Audi & Ford are the worst for blinding others.
Ahemů you forgot the Tesla SUV.
__________________
Road 🚴🏾‍♂️ & Mountain 🚵🏾‍♂️







rsbob is offline  

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service -

Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.