Hi-Tech blue mirror make your driving safety.

Blue Mirror was designed to increase the contrast and reduce the glare of high beam from car behind, which is especially useful for halogen headlights. The reflection characteristics of these mirrors in the visible spectral range have been selected to enhance the reflection of the blue, shorter wavelengths of the daylight, that is the reason these mirrors have been called “Blue Mirror”. These mirrors are stable at temperature of up to the softening point of the glass. Therefore, these mirrors can be formed into convex shapes at higher temperature, to increase the field of view.

Jin Dai “Blue Mirror” is produced by chemical dipping method, which is different from the conventional vacuum sputtering method. Our blue mirror has consistent quality and excellent performance. We are not only provide blue mirror for most of the passenger car models by customer order, but also provide oversized blue mirror for heavy vehicle such as trucks and buses. The specifications of our blue mirror is shown as following:

        Reference:               Mercedes Benz¹ S320 (1997)

l_max :                       M±10 nm

                               (M can be ranged from 440nm to 480nm)

Reflectance:             60±5% (55~65%)

Hardness:                >9H (1kg loading)

Reflecting Layer:      outer layer of the mirror

OPTICAL DESIGN

The blue mirror is multi-layer coated to achieve the requirement of anti-glare and contrast enhancement performance. The materials used in this process are metal oxides such as SiO2 or TiO2. The structure of this optical design is show as following:

 ADVANTAGES

The advantages of our blue mirror compared with conventional back view chromium mirror even vacuum sputtering blue mirror is:

1.     State-of-art optical multi-layer coating, excellent performance of anti-glare and contrast enhancement.

2.     Clear and smooth view, superior for driving at night and snow environment.

3.     Mirror surface is highly scratch and chemical resistance.

4.     Flat, convex and aspheric are available for all product.

5.     Consistent in-line process quality with consistent blue color shade.

 COMPARATATIVE CHART OF ALL CAR MIRROR

  COATING STRUCTURE

The glass substrate surface coating is illustrated as following:

The materials coated on the glass are metal oxides, such as titanium oxide and silicon oxides, on both sides in a symmetric format. Black back painting performs to block out any transmitting light sources from backside. After heat treatment at high temperature, this coating material has converted from amorphous to crystal form therefore it has superior scratch and chemical resistance.

 COLOR SHADE

The color shade of our blue mirror is tested by Datacolor V2 spectrometer which is using D65 as the standard light source. All samples are tested under identical condition and same machine.

Quality Analysis

JD blue mirror has been test by the OEM mirror manufactory at different countries and all these test have met following countries government regulations about blue mirror such as:

USA                  : 571.111

CANADA         : CMVSS 111

AUSTRALIA    : ADR 14

CE                    : EG 71/127

BRAZIL           : CONTRAN 636/84

List of major tests:

Boiling test

                        Put the sample in boiling water for one hour

Cast Resistance

Put the sample in a chamber filled with very aggressive gas SO₂ for 240 hours to see whether the mirror can stand for it without any change.

Humility Chamber Test

                        Put the sample in a humid chamber for 240 hours

Salt Spray Test

                   To check the oxidation resistance of the mirror for 240 hours

Reflection Test   (White)        >40%

                         (Blue)          >25%

                         (Red)           >25%

                         (Yellow)       >25%

Defrost Test

Common in Europe, because during the winter user will put salt on top of the mirror to defrost mirror glass

Abrasion Test

Surface risk test using pencil rubber tip with 1 KG loaded moving in circle motion for 1000 circles without any damaged marks on the glass surface.

Radius of Convex