Apr. 27, 2023
Led optical lenses are made of liquid optical silicone, which has the features of high and low temperature resistance, anti-yellowing, UV resistance, soft texture, impact resistance, high light transmittance and low refractive index. With the continuous maturity of liquid injection molding technology, low-profile led optical lenses are more and more widely used in people's lives, and people have more and more questions about never chips led optical lenses.
Never cracks led optical lens is a high-transparency product that uses silica gel instead of traditional glass or PMMA to achieve light reflection and refraction.
1) The high transmittance of 94% is better than the traditional 92%.
2) High temperature resistance: -40—200 degrees
3) Good anti-yellowing property
4) UV resistance
5) Soft texture and impact resistance.
6) Low refractive index
1) Surface roughness (high gloss RA0.02-RA0.05) (test with non-contact equipment)
2) Whether there are bubbles in the molded product (check with CCD)
3) Function: light measurement with light distribution equipment (including light type, brightness value,)
4) Others: functions specified by customers (such as UV resistance test, etc.)
1) Structural positioning
1) Form the injection molded parts first, and then put the injection molded parts into the LSR mold.
2) Do the overmolding process and form the silicone lens part.
Impact resistant led optical lenses are not suitable for imaging industries or products due to their soft surface.
Step 1: Mold Design
Step 2: Mold Material Order
Step 3: Drilling
Step 4: Grinder
Step 5: CNC Rough Machining
Step 6: Heat Treatment
Step 7: CNC Finishing
Step 8: Wire Cutting
Step 9: EDM
Step 10: Polishing
Step 11: Mold Matching
Step 12: Assembly
Step 13: To Prototype
1) The fluidity of silicone is better than that of injection molding, and the processing accuracy of the mold is 2 levels higher than that of the precision injection mold.
2) The led optical lenses requires high transparency and higher requirements for surface polishing.
At present, led optical lenses for LED lighting are acceptable, and led optical lenses for automotive lighting are still under verification.
Vertical injection machine: more suitable for making some larger and heavier products, with good fluidity and easy glue removal.
Horizontal injection machine: It is more suitable for making products with precise dimensions, because the control of the injection volume of the equipment is more accurate.
UV protection led optical lenses silicone material: The price of domestic optical silicone material is about 150 RMB/kg, and the price of imported optical silicone material is about 250-350 RMB/kg.
If you are interested in led optical lenses, please feel free to contact us.
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