What are the types of LED lights

1. LED lights are divided according to the color of the light-emitting tube

According to the color of the light-emitting tube, it can be divided into red, orange, green (subdivided into yellow-green, standard green and pure green), blue light, etc. In addition, some LED light-emitting diodes contain chips of two or three colors. LED wall light factory

According to whether the light-emitting diode is doped with or without scattering agent, colored or colorless, the above-mentioned light-emitting diodes of various colors can also be divided into four types: colored and transparent, colorless and transparent, colored scattering and colorless scattering. Scattered light-emitting diodes and Dayu are used as indicator lights.

2. LED lights are classified according to the characteristics of the light-emitting surface of the light-emitting tube

According to the characteristics of the light-emitting surface of the light-emitting tube, it can be divided into round light, square light, rectangular light, surface light-emitting tube, lateral tube, micro-tube for surface installation, etc. Circular lamps are divided into φ2mm, φ4.4mm, φ5mm, φ8mm, φ10mm and φ20mm according to their diameters. In foreign countries, the light-emitting diode of φ3mm is usually recorded as T-1; the light-emitting diode of φ5mm is recorded as T-1 (3/4); the light-emitting diode of φ4.4mm is recorded as T-1 (1/4).

The angular distribution of circular luminous intensity can be estimated by the half-value angle. From the luminous intensity angle distribution map, there are three categories:

(1) High directivity. Generally, it is a pointed epoxy package, or a package with a metal reflective cavity, and no scattering agent is added. The half-value angle is 5°~20° or less, and has high directivity. It can be used as a local illumination light source, or combined with a light detector to form an automatic detection system.

(2) Standard type. It is usually used as an indicator light, and its half-value angle is 20°~45°.

(3) Scattering type. This is an indicator light with a larger viewing angle, the half-value angle is 45°~90° or more, and the amount of scattering agent is larger.

3. according to the structure of light-emitting diodes

According to the structure of LED, it can be divided into full epoxy encapsulation, metal base epoxy encapsulation, ceramic base epoxy encapsulation and glass encapsulation.