Shenzhen Runzhihui Industrial Co., Ltd.

R&D

COB lens design report

2021-06-21(411)Views

LED: Sharp GW6BMR**HED Lens material: optical grade PC
LED: Sharp GW6BMR**HED
Lens material: optical grade PC

1. Schematic diagram of lens:




二.Simulation situation
1. Simulated illuminance map:


2.Simulated light intensity curve



三.analysis:
It can be seen from the above simulation diagram that after matching the lens, the spot angle is 24 degrees (50% maximum light intensity), and the efficiency is 82%.
The maximum illuminance is 1490 lx, which fails to meet the customer's requirement of 18 degrees and the maximum illuminance is 2600 lx.


四.Suggest:
1. Replace the small light-emitting surface LED;
2. The lens height needs to be increased.

+MORERelated Suggestion

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