Multiregion spectroscopic LGF：
On the basis of conventional LGF, a layer of 0.3mm black foam gum is added to block the transmission of light and achieve the effect of multi-region light splitting.
LGF，It has the characteristics of ultra-thin, which does not affect the feel, uniform light emission, and many changes in color. Its working principle is to use the principle of light reflection and refraction, combined with special optical software design, to do microstructure processing on the optical PC film, thereby expanding the "point light source" into a "surface light source". The light beam propagates from the medium at a suitable angle and density, so as to achieve the excellent effect of uniform light emission.
Black foam + glue + shading film + diffusion film + LGF + water glue + cover layer + spacer layer + metal dome layer + protective film layer
1. Black foam + glue
2. Shading film(Black and white fingerprint adhesive）
3. LGF(PC)
4. (3M7533)
5. (Mylar)
6. Spacer)
7. (Metal Dome)
8. protective film layer
Product Specification：
1. Black foam + glue: the thickness is generally 0.28 ~ 0.32mm.The usual thickness is 0.32mm
2. Optical PC: common thickness of 0.125mm, light transmittance of >90%
3. Water glue: 3M7533
project | thickness(mm) | initial force | retentivity(hr/kg*inch) | adhesive force(kgf/inch) |
Detection Tool | thickness gauge | Tape initial viscosity tester | Supplier supply | Supplier supply |
Colour Transparent | thickness of adhesive：0.018~0.025 | The adhesive rolling distance of corresponding steel balls is less than 10cm | 8↑ | 0.6↑ |
base material： 0.025/0.05/0.075/0.1 | ||||
White | thickness of adhesive：0.018~0.025 | The adhesive rolling distance of corresponding steel balls is less than 10cm | 8↑ | 0.6↑ |
base material： 0.025/0.05/0.075/0.1 | ||||
One side is black, the other side is white | thickness of adhesive：0.018~0.025 | The adhesive rolling distance of corresponding steel balls is less than 10cm | 8↑ | 1.1↑ |
base material： 0.025 |
Note: (1) metal DOME substrate: SUS301;(2) vertex: down Dimple
project | positioning hole to positioning hole(mm) | Positioning hole to shape(mm) | Shape to shape(mm) | Hole diameter(mm) | Positioning hole to metal dome(mm) | metal dome to metal dome(mm) |
sample | ||||||
Manual sample | ±0.15 | ±0.15 | ±0.15 | ±0.1 | ±0.2 | ±0.2 |
Mould sample | ±0.1 | ±0.1 | ±0.1 | +0.08/-0 | ±0.12 | ±0.12 |
Note: (1) the positioning hole are minimum aperture Φ 1.0 mm;
(2) the minimum aperture of SP sheet is 0.15mm larger than that of shrapnel.The width of gas groove of SP sheet is 1.0~1.2mm, and the wiring mode is: two to three keys are connected, and avoid components to avoid dust.
4. The sample delivery
sample
Model | The new model(5~20pcs) | The old model(5~20pcs) |
Manual sample | 3 ~ 5 working days | 3 ~ 5 working days |
Mould sample | 1 working day after the mold returns | 2 ~ 3 working days |
Mold delivery time: 6-7 working days
Note: 1. The life test conditions are as follows: the plastic flat head of the hitting head;Diameter: Φ 1.8;Speed: 2~3 times/second;Strike power: 400-500g.
2. Determination of life span: before and after the life span impact, the change rate of elasticity and feel of the DOME is less than 30%, and the metal dome is not broken.
