3-1. Problem 1: Damage to the lens during the mounting process
Nichia establishes the optimal absorption method and the optimal cavity shape/size for each LED with a lens.
In general, there are two absorption methods; one is the “nozzle insertion system” and the other is the “non-insertion nozzle system.”
3-1-1. Nozzle Insertion System
The nozzle insertion system is optimal for the 383/385 series, considering the LED shape/tolerance and the cavity shape/size. The LEDs can be absorbed in a stable condition, when the nozzle is inserted into the cavity and brought close to the lens. Please take care not to insert the nozzle too close to the lens. Therefore, please refer to Nichia’s specifications for the insertion depth.
The pick-and-place nozzle is chamfered so as to form a “C Surface” (a sloped surface) and an “R Surface” (a curved surface), enabling a smooth mounting of the LEDs. Such design of the nozzle can prevent the LEDs from tilting in the cavities.