I bought a set of ready made blue dot tail light lenses for my 28 model A PU . (Yea I know there not legal in my state ) I installed them today and realized the blue dot is in the brake light section of the lense ( top portion ) so it only illuminates when the brakes are applied . Is this the traditional way there ran ?? I always assumed the blue dot was lite when the tail lights were on ????????? I saw some lenses advertised that actually say STOP in brake section of the light and the dot is on the lower tail light section opposite of about how all the other lenses are sold .
I thought I read that the Blue dot was like a up North states bad weather in 30's from rear to Identification of police ,law-enforcement , emergency equipment from distance. Running Light side . Snow , rain , fog
make your Model A smart....then no more dumb Model A questions The two Model A's I have, that have blue dots, are both in the running light part of the lamp, not on the stop lamp, but they are also later lamp assemblies...I don't know about the actual "A" lamp assemblies.... and blue dots but brake lamp doesn't make sense does it...
I don't think it makes sense but that about how all the one sold are offered from speed way to eBay to moon . Mine are lke these 1928-31 Ford Model A Tail Light Assembly with Blue Dot (mooneyesusa.com) These are the other way around with the do in the running light section but is don't like the amber and the word stop on them 1928 1931 Ford Model A Car 'STOP' Tail Light Lamp Lens w/ BLUE DOT A-13450-SBD | eBay I was wondering what they did in the olden days LOL
Of all of them I've seen, which wasn't in the old days, they are mostly Red while driving, but really go Purple when the brakes are on. We are talking 39s, 40s, and others. They didn't shout pull me over until the brakes lit 'em up. Here's a current search of 15 other posts with Blue Dot in the title. https://www.jalopyjournal.com/forum...lue+dot&o=relevance&c[title_only]=1&c[node]=5
All I can say is that those damned things are annoying as hell when you have to follow them for a couple hundred miles at night. A buddy I did road trips a lot had them for a while until he followed his car in another car one night.
My Model A had the dots on top. Never had a question from law enforcement. Drove that rod 27 years, 110k miles.
It has somthing to do with the eye not accepting the different light waves, at the same time. There was was a news article 35 - 40 years ago, about an early evening kiddie show, in Japan. The report spoke of the use of blue and red lights flashing together ( simultaneously ) The result was hospital ER rooms filling up with parents with their children, because the kids suffered spontaneous dizziness and vomiting, while watching the show.
Yes only Blue when the brakes are applied.....or turn signals if you ride has them. Sorry this image is not clearer, but "Blue Dots" only illuminate "Blue" with the Brakes are applied. That's because the "dot" is centered over the center of the bulb in most cases. The light is dispersed around the Dot and out the red part of most lenses. Kind-a a Blueish-Purple if they are the Glass "dots". Sometime the plastic dots are not as bright or blue.
HMMMM don't a lot/ most of those lights shown have a dual element bulb ( 1157 if 12V ) were the stop is just brighter and light would be going through the dot all the time ???? I guess unless I want to drill my own lenses its what I'll live with if I keep them in . Wonder how hard it is to get a hole in the glass I have never tried it . I was just disappointed after putting them in I cant even see what both look like at once unless I put put rock on the brake pedal LOL.
Dual element is the key. The brighter element is directly behind the "Blue-Dot" give off the signature Blueee Glow
The blue is darker. Low illumination around the sides with the reflector shows Red, but the center is only dimly Blue. Brighter illumination makes it glow.
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