Surface mount IR LED, or surface mount infrared LED, is a type of light-emitting diode that emits infrared light. It is widely used in various fields such as consumer electronics, automotive, medical equipment, and industrial automation. In this article, we will introduce the surface mount IR LED industry, including its history, types, applications, and market trends.

History of Surface Mount IR LED

The history of surface mount IR LED can be traced back to the 1960s when the first LED was invented. At that time, the LED was mainly used for indicator lights. With the development of semiconductor technology, the LED gradually evolved into a variety of types, including surface mount IR LED. In the 1980s, surface mount technology began to be widely used in the electronics industry, which greatly promoted the development of surface mount IR LED.

Types of Surface Mount IR LED

Surface mount IR LED can be divided into several types according to different parameters, such as wavelength, package, and material. 1. Wavelength: Surface mount IR LED can be divided into short-wave infrared LED, medium-wave infrared LED, and long-wave infrared LED according to the wavelength. The short-wave infrared LED has a wavelength of 0.76-1.3μm, the medium-wave infrared LED has a wavelength of 1.3-3μm, and the long-wave infrared LED has a wavelength of 3-5μm. 2. Package: The surface mount IR LED package mainly includes SMD, CSP, and other types. SMD is the most commonly used package, which has good heat dissipation performance and is easy to mount. CSP is a new type of package, which has a smaller size and higher light output. 3. Material: The material of surface mount IR LED mainly includes gallium arsenide (GaAs), gallium phosphide (GaP), and other III-V compound semiconductors. These materials have good photoelectric properties and can emit infrared light with high efficiency.

Applications of Surface Mount IR LED

Surface mount IR LED has a wide range of applications due to its excellent performance. The following are some typical applications: 1. Consumer electronics: Surface mount IR LED is widely used in remote controls, mobile phones, cameras, and other consumer electronics products. It can be used to transmit infrared signals for remote control and to detect infrared signals for camera image sensing. 2. Automotive: Surface mount IR LED is used in automotive applications such as reverse sensors, automatic door locks, and automotive lighting. It can detect obstacles in reverse parking and provide safety protection. 3. Medical equipment: Surface mount IR LED is used in medical equipment such as endoscopes, thermometers, and blood glucose meters. It can be used for optical imaging and temperature measurement. 4. Industrial automation: Surface mount IR LED is used in industrial automation applications such as optical sensors, proximity switches, and barcode scanners. It can detect the presence or absence of objects and identify the position of objects.

Market Trends of Surface Mount IR LED

The market of surface mount IR LED is growing rapidly due to the continuous expansion of its application fields. The following are some market trends: 1. High brightness and high efficiency: With the continuous optimization of technology, the brightness and efficiency of surface mount IR LED are increasing, which will further expand its application fields. 2. Miniaturization and integration: The miniaturization and integration of surface mount IR LED are becoming more and more prominent. The CSP package has become the mainstream, and the size of the surface mount IR LED is continuously reduced. 3. Green and environmental protection: As the world pays more attention to environmental protection, the demand for green and environmentally friendly surface mount IR LED is increasing. The use of recyclable materials and energy-saving technology will become the development trend of the industry. 4. Market competition: The market competition of surface mount IR LED is increasingly fierce. The industry is constantly optimizing the product structure and expanding the application fields to maintain its competitive advantage. In conclusion, surface mount IR LED has a wide range of applications and market prospects. With the continuous development of technology and the expansion of application fields, the surface mount IR LED industry will have a bright future.