1. High -power LED lamp beads silicone lens lens

(1) Because the temperature resistance of silica gel (also can also overflow welding), it is often used to be directly packaged on the LED lamp chip chip.

(2) General silicone lens is small in size and 3 = 10mm in diameter.

2. High -power LED lamp beads PMMA lens lens

(1) Optical grade PMMA (polymethyl acrylic methyl ester, commonly known as: acrylic).

(2) Plastic materials, advantages: high production efficiency (which can be completed by injection, squeezing); high light transmission rate (about 93%penetration at 3mm thick); disadvantages: temperature cannot exceed 80 ° (thermal deformation temperature 92 92) Spend).

Ultra -power LED lamp bead

3. High -power LED lamp beads PC lens

(1) Polycarbonate (PC) polycarbonate.

(2) Plastic materials, advantages: high production efficiency (can be completed by injection, squeezing); light transmission rate is slightly low (about 89%penetration rate at 3mm thick); disadvantages: temperature cannot exceed 110 ° (thermal deformation temperature temperature (thermal deformation temperature temperature) 135 degrees).

4. High -power LED lamp bead glass lens lens

Optical Glass Material

Advantages: high light transmission (97%), high temperature resistance and other characteristics;

Disadvantages: single shape, fragile, not easy to achieve mass production, low production efficiency, high cost and so on. However, at present, few manufacturers in China have begun to develop glass mold models, using molds to cast glass lenses, which can produce various shapes and special surface lenses.

Mold production, good product consistency, high precision, and improvement of production efficiency, effectively reducing the cost of glass lens, and the characteristics of high light transmission, glass lens will inevitably become an alternative to optical plastic high -power LED lamps. Sex products. However, the current price of such production equipment is high, and it is difficult to popularize in the short term.

In addition, the shortcomings of glass and PC are more difficult than PMMA and PC materials, and more research and explorations are needed. In terms of improved technology that can be achieved now, it can only be used through coating or tempered treatment The light transmission rate of glass lens will be reduced, but it will still be far greater than the light transmission effect of ordinary optical plastic lens. So the prospects of glass lens will be wider.