With the rapid development of optoelectronics technology, high-power LEDs have become increasingly popular in various applications, such as medical, industrial, and automotive fields. Among them, 850nm high-power LEDs have emerged as a hot topic in the industry due to their unique advantages. This article will provide an in-depth introduction to 850nm high-power LEDs, covering their basic principles, application fields, market trends, and future development prospects.

Basic Principles of 850nm High-Power LEDs

850nm high-power LEDs belong to the infrared light range, which has the advantage of strong penetration and deep tissue absorption. The key to realizing the high-power performance of 850nm LEDs lies in the material system, structure design, and heat dissipation technology.

1. Material system

The material system of 850nm high-power LEDs mainly includes InGaAsP/InP, InGaAs/InP, and GaN/InGaN. These materials have excellent optical and electrical properties, which can effectively improve the luminous efficiency and output power of LEDs.

2. Structure design

The structure design of 850nm high-power LEDs includes the epitaxial structure and the optical cavity structure. The epitaxial structure mainly includes the active region, cladding layer, and contact layer. The optical cavity structure can enhance the light collection and extraction efficiency of the LED.

3. Heat dissipation technology

High-power LEDs generate a lot of heat during operation, which affects the performance and lifespan of the device. Effective heat dissipation technology is essential for ensuring the stable operation of 850nm high-power LEDs. Common heat dissipation methods include heat conduction, heat convection, and heat radiation.

Application Fields of 850nm High-Power LEDs

850nm high-power LEDs have excellent optical properties and are widely used in various fields, including:

1. Medical field

In the medical field, 850nm high-power LEDs are used for endoscopy, laser surgery, and photoacoustic imaging. Their deep tissue penetration ability allows for precise and non-invasive diagnosis and treatment.

2. Industrial field

In the industrial field, 850nm high-power LEDs are used for machine vision, barcode scanning, and optical communication. Their strong penetration and stable performance make them ideal for industrial applications.

3. Automotive field

In the automotive field, 850nm high-power LEDs are used for vehicle identification, anti-counterfeiting, and night vision. Their high sensitivity and low power consumption make them an ideal choice for automotive applications.

Market Trends of 850nm High-Power LEDs

The market demand for 850nm high-power LEDs is constantly increasing, driven by the continuous expansion of application fields. The following are some key market trends:

1. High luminous efficiency and output power

With the continuous optimization of material systems and structure designs, the luminous efficiency and output power of 850nm high-power LEDs are constantly improving, which is conducive to the expansion of application fields.

2. Miniaturization and integration

Miniaturization and integration of 850nm high-power LEDs are becoming increasingly important in the market. The development of micro-LED technology will further promote the application of 850nm high-power LEDs in various fields.

3. Green and energy-saving