Consers about the US speedo backlight - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 19 (permalink) Old 10-25-2002, 01:06 PM Thread Starter
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Consers about the US speedo backlight



Thsis picture from http://www.goonish.com/atenza/read.php?TID=435 shows that at some angles the numbers are not visible.
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post #2 of 19 (permalink) Old 10-25-2002, 01:14 PM
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Replying to Topic 'Consers about the US speedo backlight'

QUOTE
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Originally posted by Blackbird


* * * * * * *


Thsis picture from http://www.goonish.com/atenza/read.php?TID=435 shows that at some angles the numbers are not visible.[/b]
I really wouldn't worry about this.

Five to one that the camera has a polarizing lense. For you who know things about light polarization, you know that also the LCD has such a filter. If the camera's filter and the LCD's filter are at 90 degrees angle no light slips through, and at lower angles a little light gets through.

Mazda would never release it if it didn't work perfectly.
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post #3 of 19 (permalink) Old 10-25-2002, 01:25 PM Thread Starter
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Replying to Topic 'Consers about the US speedo backlight'

LOL I'm not the concerned one here :D

It was a thread here somewhere (went trough a weeks postings today, don't remember where it is) where there was a picture of an US 6 where you couldn't see the numbers on the "dial".

Thought this might add some light on the matter...
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post #4 of 19 (permalink) Old 10-25-2002, 01:34 PM
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Replying to Topic 'Consers about the US speedo backlight'

These are a picture of the "Optitron" gauge set right? If so, then they only show up when the ignition is turned on. Basically, they are back lit directly behind the numbers, rather than illuminated from the front. So they are opaque when off, and much brighter than normal gauges when on.

Here is the "normal" type gauge:


Here is the "optitron" gauge:
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post #5 of 19 (permalink) Old 10-25-2002, 01:43 PM Thread Starter
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Replying to Topic 'Consers about the US speedo backlight'

Ahh....! Coool! Should have been blue though!

I saw a VW Caravell the other day with blue numbers and I belive red needels and small details... (or was it the other way?) REALLY GOOD LOOKING! The new Volvo S60/V70R also have a really awesome blue light...
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post #6 of 19 (permalink) Old 10-25-2002, 01:46 PM
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Replying to Topic 'Consers about the US speedo backlight'

Notice the dimmer switch below the temp gauge for the Optitron cluster?

The switch for the regular cluster is on the dash below the driver side air vent.

But on one picture I saw on this site, both switches are there...
Wonder why the difference.
post #7 of 19 (permalink) Old 10-25-2002, 01:47 PM
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Replying to Topic 'Consers about the US speedo backlight'

Agreed. I really like the pictures of the blue on the MPS. Way cool.

I've heard the Hyundais and the VW's use a purple that's pretty slick, too.
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post #8 of 19 (permalink) Old 10-25-2002, 02:10 PM
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Replying to Topic 'Consers about the US speedo backlight'

The blue is very cool looking. There is a reason for the orange/red spectrum for night lighting though. Light toward the blue end of the spectrum can negatively affect your night vision. That's why airplane cockpit illumination is almost universally red. That's also why there's some debate about the benefits of HID lighting for cars. We intuitively assume that lighting that's closer to the characteristics of daylight would be better, but our night vision and our day vision are very different. Those with HID setups may notice that the area within the beam looks great, but they are not able to see objects outside of the beam nearly as well as with halogens (which are brightest in the yellow spectrum). Our eyes are biased toward the red spectrum due to the nature of how light travels. That's why red cars are so eye-catching, and also why many sirens are both red and blue. The eye will see the red first, but blue travels further.
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post #9 of 19 (permalink) Old 10-25-2002, 02:19 PM
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Replying to Topic 'Consers about the US speedo backlight'

QUOTE
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Originally posted by kenoka


* * * * * * The blue is very cool looking. *There is a reason for the orange/red spectrum for night lighting though. *Light toward the blue end of the spectrum can negatively affect your night vision. *That's why airplane cockpit illumination is almost universally red. *That's also why there's some debate about the benefits of HID lighting for cars. *We intuitively assume that lighting that's closer to the characteristics of daylight would be better, but our night vision and our day vision are very different. *Those with HID setups may notice that the area within the beam looks great, but they are not able to see objects outside of the beam nearly as well as with halogens (which are brightest in the yellow spectrum). *Our eyes are biased toward the red spectrum due to the nature of how light travels. *That's why red cars are so eye-catching, and also why many sirens are both red and blue. *The eye will see the red first, but blue travels further. *[/b]
Yes. We had a previous discussion on this somewhere. You summarized well what my point of that thread was, that red is easier for your eyes at night.
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post #10 of 19 (permalink) Old 10-25-2002, 08:19 PM
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Replying to Topic 'Consers about the US speedo backlight'

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Originally posted by kenoka


* * * * * * These are a picture of the "Optitron" gauge set right? *If so, then they only show up when the ignition is turned on. *Basically, they are back lit directly behind the numbers, rather than illuminated from the front. *So they are opaque when off, and much brighter than normal gauges when on. *

Here is the "normal" type gauge:


Here is the "optitron" gauge:
[/b]
The orange color of the guage is not the Optitron guages it is just the standard ones. The true optitron is this totally red like the Audi's. Go here to see the real Optitron.

http://www.mazda.com.au/articleZone2.asp?a...icleZoneID=1676

Also if you can't picture what Optitron is, just look at the Toyota Matrix, those are optitron guages.
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