C6 windshield... two different versions? [Archive] - Corvette Forum : DigitalCorvettes.com Corvette Forums

: C6 windshield... two different versions?

06-08-2005, 04:11 PM
Do all c6 windshields have the interlayer for the HUD.... ? Or, are there two different windshields depending on whether you get HUD or not?


(for reference on the interlayer, read below.)


The DuPont(TM) Wedge(TM) for Head-up Display Illuminates Safety, Navigation and Handling Features; Available on GM Vehicles

TROY, Mich., June 6 /PRNewswire/ -- A head-up display (HUD) technology
from Asahi Glass, Nippon Seiki and DuPont Automotive is available as an option
on several GM vehicles including the Pontiac Grand Prix, Cadillac STS and
Chevrolet Corvette. It comes standard on the Cadillac XLR and the new 2006
Chevrolet Corvette Z06, launching in the fourth quarter of 2005.

The distortion-free, head-up display (HUD) communicates driver-selected
information, such as navigation, performance features as well as vehicle speed
to the driver. This year, the HUD incorporates a new Track Mode setting that
presents real-time information on lateral acceleration -- better known as G-
Force. In Street Mode, driver-selectable settings include vehicle and engine
speed, direction, turn signals, gear position, audio settings and even turn-
by-turn directions on vehicles equipped with a navigation system.

At the center of the HUD technology is a precisely engineered "interlayer"
of DuPont(TM) Butacite(R) PVB that acts as the screen onto which the HUD
information is projected. This interlayer is called the DuPont(TM) Wedge(TM)
because of its angular cross-section.

Laminated between two layers of glass, the Wedge(TM) is transparent to
allow distortion-free forward vision, but also is able to reflect the HUD
projection for viewing by the driver. The virtual image appears to float in
the driver's line of sight near the front of the car, minimizing refocus time.
Virtual image location and brightness can be adjusted to the driver's
preference. Together, these features help to reduce driver distraction,
enhancing safety.

The Wedge(TM) angle is critical, and was developed through close
cooperation with the GM engineering team, windshield supplier Asahi Glass Co.
and Nippon Seiki, which supplies the HUD projector and served as package

"This is a great example of suppliers working together to add value to the
OEM," said Jeff Dickson, general manager, sales, for Nippon Seiki
International Ltd. "As we were adding great new features, such as a wide
array of user-selectable displays, it was important that the image be as crisp
and clear as possible. The laminate is a critical factor in achieving that
goal." The Wedge(TM) is manufactured from DuPont(TM) Butacite(R) PVB polymers
to exacting tolerances.

SOURCE DuPont Automotive

06-08-2005, 04:25 PM
Great question...Too bad i dont know the answer?:huh:

The Bad
06-08-2005, 04:32 PM
They may all be the same.......didnt the 01 Z06's have a thinner, lighter windshield and later all vettes had the same glass? Maybe all vettes w/HUD have the same glass.:huh:

Sorry, I may have complicated a simple question.........so my reply is "I dont know".:laughing:

06-08-2005, 06:48 PM
I don't remember the exact location, but my windshield has the word "HUD" on it. I believe it is just above the other window identification information on the passenger side. I'll check when I get home. BTW I have a 1SB w/HUD.

06-08-2005, 10:17 PM
Here's the windshield info:


06-08-2005, 10:20 PM
Originally posted by Lowlead
Here's the windshield info:


VERY NICE picture, sir.:thumbsup:

06-08-2005, 10:42 PM
From what I understand from a past conversation with a friend that was in the know, there is a special polymer that is sandwiched in between the glass that reflects the image.

So yes there is a special windshield for the HUD.

It is also pretty spendy.

06-09-2005, 12:21 AM
I just went to www.89glass.com and got an instant online quote of $719 minus a $50 online sale for a total of $669 for a windshield for a '05 Corvette convertible, they didn't ask if it had a HUD or not.