Heated Defrosted Windscreens – Diamond Coating

With some countries experiencing weather cold enough to freeze rain or overnight humidity on windscreens, leaving for work at a set time every morning and hoping to arrive on time can be problematic when your windscreen is completely iced over.

Relying on the demist function on most cars results in you sitting and waiting for 10 – 15 minutes for the engine to get warm enough to start de-icing. You can see from the image to the right signs of the warmth getting through after 12 minutes and eventually clearing to see and drive after 18 minutes.

There are fully heated windscreens available in the market which are widely available. The technology utilized for the heating are micro sized wires laminated inside the window structure.

The electronics inside the vehicle will automatically switch the heater on with the ignition when temperatures reach 33 Deg F or below, it can also be operated manually.

The downside of this technology is the visibility of the wires, you can see with the image on the left it’s very easy to see the wires, in certain light it can be very distracting.

The solution is Diamond Coatings ITO Coating.

 

Current Heated windows with wire technology require a 12v power supply with two separate heated areas working both sides of the car with a small gap in the center of the screen. Power requirements for these windows are 12v with a resistance of 0.73 Ohms across the wire circuit.

For the ITO coated version an optical coating thickness allowing for the best optical coating to be applied would require a DC to DC converter to step up the voltage. The maximum we would go up to for safety reasons would be 50v, this would equate to a 12.63 Ohms circuit which would give the optimal heating and coating for the best results.

Self-driving vehicles seem to be more certain as the years progress, snow restricts sensors from performing to their full ability. Heaters are possible with specific optical coatings that would perform with the sensor specifications.

Another option with heated windscreens, sensors could be mounted inside the vehicle and specifically an integral part of the car’s interior trim rather than being protected or designed to work in the harsh elements that would exist.

Headlights: With vehicles headlamps changing to more efficient and brighter options HID, LED & Laser Headlights the reduction of emitted heat creates other issues.

Eliminating snow or frost from front & rear lighting is possible with a heater coating applied to the inner surface of the light lens, Although the light lens curvature would need to be a design consideration the correct tool & Machine design can make this a possible solution.

Diamond Anti Reflection coatings and its ITO coating allowing for large area touchscreens and large area heated products. By applying silver connecting busbars at the outside edge of the glass the ITO will be applied across the entire glass surface creating an invisible electrical circuit which can be warmed to uniformly heat the window surface and defrosting the window in as little as two minutes.

• Two separate heated areas working both sides of the car with a small gap in the center of the screen. Power requirements for these windows are 12v with a resistance of 0.73 Ohms across the wire circuit.
• For the ITO coated version an optical coating thickness allowing for the best optical coating to be applied would require a DC to DC converter to step up the voltage. For safety reasons would be 50v, this would equate to a 12.63 Ohms circuit which would give the optimal heating and coating for the best results.

Diamond Coatings technology allows for various applications such as heating, de-misting or de-icing of windows or headlights. Other related applications can include anti-reflection, glare reduction, display protection and EMC compliance.

This technology option of micro sized wires laminated inside the window structure. The downside of this technology is the visibility of the wires, you can see with the image on the left it’s very easy to see the wires, in certain light it can be very distracting.

For more information on this technology go to www.diamondcoatings.com / www.diamondcoatings.co.uk or write to designhmi@gmail.com