Shenzhen GHD Technology Co., Ltd.
Shenzhen GHD Technology Co., Ltd.
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What is LGF Dome Array and How does it work ?
LGF metal dome array , which full name is Light Guide Film , it is a new design . which used to replace LED in function , in comparsion with LED , lighting Uniformity; When we add a LGF on current normal double layer or EMI dome array, it becomes a LGF dome array. It can achieve great result of light distribution.see from the design , the light under keypad is coming from the LED on PCB motherboard. We need to put about 8-10 pieces LED on each board, but if the design changed to use LGF, then we can save several LED, as well as SMT fee.
What is the LGF DESIGN PRINCIPLE & What is the Advantage ?
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.
PRODUCT PHOTOGRAP
| Major Technical Parameters & Advantages of Metal Dome Array | ||
|
Item |
Description | TECHNICAL INDEX |
| 1 |
LONG LIFE-TIME | Round ,Oval, four - legged, triangular, rectangular, three - point side, irregular |
| Stainless Steel ,Nickel Plating ,Silver Plating & gold Plating | ||
| Dimple Numbers : 0/1/3/4/5 dimple | ||
| LIFE-TIME : 300 ~3000 Thousand Times | ||
| In compare of initial value , The change rate <30% after 1M press-test | ||
| 2 |
Click % | Force:100gf~450gf, Tolerance : ±20gf |
| Normal Condition | ||
| 3 |
Stroke | Customize in accordance with Customer ‘s requirement |
| 0.12~0.6mm ,Spec. various by different METAL DOME | ||
| 4 | Dimension Tolerance | Position dimension tolerance : + /- 0.1mm |
| 5 | Good Weatherproof Resistance |
Under the conditions of 55±2℃,R.H.95% , Replacement 24H , and then resume 2H under the normal room temperature |
| 6 | Good Corrosion Resistance | High Temperature can bear : +70℃ Lower Temperature can bear : -40℃ |
| 7 | Tape Adhesive Test | 0.6↑(Unit:kgf/inch) |
| 8 |
Stable Tape Shrinkage rate | MD(%):0.5 ↓ CD(%):0.3 ↓ |
| (Unit:100℃*40mins) | ||
| 9 |
Small Instantaneous Contact Resistance | (Nickel Plating ) <1Ω, ( Stainless Steel )<3Ω |
| 10 |
Total Thickness of Base materials | 0.05mm,0.075mm,0.1mm,0.125mm,0.15mm; Normal Thickness Spec. |
|
| ||
| 11 | Light-Guide-film Uniformity | >75% |
Q1: Are you Trading company or manufacturer ?
A: We are a Professional Trading & Manufacturer Integrated .
Q2 : Can you offer OEM Service ?
A: Surely Okay , we have Seasoned OEM service experience .
Q3: what is the Lead time of sample ?
A : It takes 2-7working days depends .
Q4: How fast can i get the Quotation ?
A: 30mins ~ 24Hours depends .
Please do not hesitate to contact with us , if you have any inquires .