Category Archives: metal dome related

Three main factors that affect the light emitting effect of products

Although we know LGF (light guide film) can have very good light emitting effect, but the scientific and accuracy of the light emitting effect can’t be detected by using standard instrument, because of its structure characteristics that we need to … Continue reading

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Three different production processes of Light Guide Film

At present, there are three different light guide dot placement processes in the industry: Printing light guide dot, laser engraving light guide dot and mould hot pressing light guide dot. The production efficiency and light guide effect of LGF made … Continue reading

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What differences between PC and TPU of LGF Raw Material?

Do you know what LGF is made of? One of the most important raw materials of LGF products is the medium material of light transmission, including TPU, PC and PMMA. The light emitting effect of different materials is greatly different, … Continue reading

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What advantages of LGF (light guide film)?

When says light, it’s natural to think of lights (LED), so how can we use as few lights (LED) as possible to produce the best light effect? LGF (light guide film), it has the characteristics of ultra-thin, uniform light, color … Continue reading

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The Quality Inspection of the Metal Dome

Metal dome is an important part used for membrane switch, micro switch, printed circuit boards and so on. It plays a role of conducting the electricity. Thus, it is essential to ensure the quality of the domes. But what should be paid … Continue reading

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How to Produce the 3M Adhesive Dome Array?

Namely, 3M adhesive dome array uses the 3M adhesive instead of the common adhesive used in the dome array. 3M adhesive is a little bit thick. Some of them even have the ability of high temperature resistance. So, it should … Continue reading

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The Structure of the Metal Dome Array

Metal dome array, generally, is double layer structure, but there is also single-layered. For the double layer dome array, there are two layers, including Mylar, spacer and metal dome. The uppermost is the Mylar with the thickness of 0.05 mm, … Continue reading

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What are the Main Applications of Different Metal Domes?

We all know that there are four types of tactile metal domes, including four-leg, circle, triangle and oblong. And these domes play different roles in various fields, even some of them can be substitute for each other. However, they virtually … Continue reading

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How to assemble metal dome on PET adhesive sheet?

Normally we have three method to assemble metal dome on PET adhesive sheet. Please check details below: Assembly jig: this is the assembly method we use often currently. According to the drawing of PET adhesive sheet (dome array) to make … Continue reading

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What’s air vent hole and function of it on dome array?

The hole on PET around metal dome or the slot between dome and dome is called the “vent hole” or “vent slot”, which is very important for the normal operation of metal dome. It will result in poor feel and affect the function of … Continue reading

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