What is 850nm infrared SMD LED and LED Lamps?

850nm infrared refers to a specific wavelength of infrared light that falls within the near-infrared spectrum. Infrared light is a type of electromagnetic radiation that is invisible to the human eye but can be detected and utilized by certain devices and technologies. The term 850nm refers to the wavelength of the light, with 850nm LED indicating a wavelength of 850 nanometers.
Infrared light is characterized by its longer wavelength compared to visible light. It lies just beyond the red end of the visible light spectrum, hence the name "infrared," which means "below red." This longer wavelength allows infrared light to have unique properties and applications in various fields.
The 850nm infrared wavelength falls into the near-infrared region, which spans from around 700nm to 1400nm. And we can package it with different kinds of package with 2835 SMD LED, 5050 SMD LED, 5730 SMD LED or LED Lapms type in 5mm LED, 3mm LED or oval LED ect. This range is often used in many applications due to its ability to penetrate certain materials and interact with specific substances. The 850nm wavelength, in particular, is commonly employed in various industries and technologies.
One of the primary applications of 850nm infrared is in remote controls. Many electronic devices, such as televisions, DVD players, and air conditioners, use infrared signals to communicate with their respective remote controls. These remote controls emit infrared light at a specific wavelength, often 850nm, which is then detected by a sensor on the device, allowing for remote operation.
In addition to remote controls, 850nm infrared is widely used in the field of telecommunications. Optical fibers, which are thin strands of glass or plastic, are commonly used to transmit data over long distances. These fibers can carry signals in the form of light, and the 850nm wavelength is often utilized due to its low attenuation rate, meaning it can travel long distances without significant loss of signal strength.
Furthermore, 850nm infrared is frequently employed in various medical and healthcare applications. Infrared light at this wavelength can penetrate human tissue to a certain depth, making it useful for non-invasive medical procedures. For instance, in pulse oximeters, which measure oxygen saturation levels in the blood, 850nm infrared light is used to detect the absorption and reflection of light by the blood, providing vital information about a patient's health.
850nm infrared is also utilized in security and surveillance systems. Infrared cameras equipped with light-emitting diodes (LEDs) emitting light at this wavelength can capture images in low-light or no-light conditions. These cameras are often used in night vision applications, allowing for enhanced visibility in dark environments without the need for visible light sources.
Moreover, 850nm infrared finds applications in industrial processes such as machine vision and quality control. In machine vision systems, infrared light at this wavelength is used to detect and inspect components, identify defects, and ensure the accuracy of manufacturing processes. The longer wavelength of infrared light allows for greater depth penetration, making it suitable for examining objects with complex structures.
In the field of agriculture, 850nm infrared is used to monitor plant health and growth. Certain types of plants reflect or absorb light differently depending on their condition, and by analyzing the reflected infrared light at this wavelength, farmers and researchers can gather valuable information about plant stress, nutrient deficiencies, and overall crop health.

In conclusion, 850nm infrared refers to a specific wavelength of infrared light that falls within the near-infrared spectrum. It has various applications in remote controls, telecommunications, medical devices, security systems, industrial processes, and agriculture. The unique properties of infrared light at this wavelength make it a valuable tool in numerous fields, enabling advancements in technology, healthcare, and scientific research.