LGF, at least one surface out of front and rear surfaces of the light guide film is formed with a pattern such that density increases as distanced from a light source to allow light to be uniformly supplied to the keypad, or is concentratively formed with a pattern at a particular region of the light guide film to allow the light to be concentratively supplied to a particular region of the keypad.
Luminescent ink is printed on the graphic layer, primarily button area;
Metallic ink such as silver mirror ink is printed on graphic layer;
Electroplated coating on whole PET layer is deplated.
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MAJIOR TECHNICAL PARAMETERS & ADVANTAGES OF METAL DOME ARRAY
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| Item | Description | TECHNICAL INDEX |
| 1 | LONG LIFE-TIME |
Shape Type : Round , Oblong , 4-legged , Trianglar , Rectangular , Irregular
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| Appearance Treatment Type : Stainless Steel ,Nickel plated , Silver Plated , Gold plated | ||
| Dimple numbers : 0/1/3/4/5 | ||
| Life-time : 300~5000K Hits | ||
| Force & Click Ratio : In compare of initial value , the change rate<30% after 1M hits | ||
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2 |
Click % | Force:100gf~450gf , Tolerance :+/-20gf |
| Click Ratio :50+/-10% , | ||
| 3 | Stroke | Custom in accordance with Customer's requirement |
| 4 | Dimension Tolerance | Position dimension tolearance :+/-0.1mm |
| 5 |
Weather-proof Resistance |
Under the conditions of 55±2°C , R.H. 95%,Replacement 24H , resume 2H under the normal room temperature |
| 6 |
Corrosion Resistance |
High Temp. can bear : +70°C Low Temp. can bear : -40°C |
| 7 | Tape Adhesive Test | 0.6↑(unit : kgf/inch) |
| 8 |
Stable adhesive Shrinkage Rate |
MD(%):0.5↓ CD(%):0.3↓ |
| 9 |
Small Instantant Contact Resistance |
Nickel Plating <1Ω Stainless Steel<3Ω |
| 10 |
Total Thickness of Base Material |
0.05mm,0.075mm,0.1mm,0.15mm for normal thickness Spec. |
| 11 | Light-Guide Film Uniformity | >75% |
Front Panel can be produced within 24 hours at the earliest.
Quantity is not a problem for us. However small or large your order, we will see to it. 1 product is also produced upon order.
no problem!
One by one!
To develop innovative solutions meeting ever changing market demands
100% made in China!
Sample delivery time
Want to order a small quantity?
You have found the manufacturer who will do it for you!
Is it possible to make a product without drawings?
We check all parts.
We carry out quality controls on all the pieces we produce, both on their aesthetics and functionality of the keyboards we manufacture.
We conduct 100% functional testing and visual inspection of our products.
Our Mission
International business
Every phase of production, from planning to implementation, is carried out entirely on our premises in China.
+86-755-27903569
+86-18922847849
sales@metaldome.com
