2. According to shine a smooth tube features points

According to the characteristics of the smooth shine round, square lamp light points, rectangular, face glowing tube, lateral tube, surface installation with micro pipe, etc.

Circular lamp in φ 2 mm diameter is divided into, φ 4.4 mm, φ 5 mm, φ 8 mm, φ 10 mm and φ 20 mm, etc. Foreign usually φ 3 mm? Leds for T remember-1; The φ 5 mm T-1 for the Kings (3/4); The φ 4.4 mm T-1 for the Kings (1/4). By half value Angle can be estimated size circular luminous intensity distribution Angle. From the Angle of the luminous intensity distribution to points into three categories:

(1) high directivity. General pointed epoxy encapsulation for, or take metal reflection cavity encapsulation, and do not add scattering agent. Half a value for 5 ° Angle ~ 20 ° or more small, has the very high directivity, can make local lighting of the use, or with light detection device of/automatic detection system.

(2) standard. Usually makes indicator light use, the half value for 20 ° Angle ~ 45 °.

(3) scattering type. This is the indicator of larger perspective, half value for 45 ° Angle ~ 90 ° or greater, scattering large quantities of the agent.