Infrared Optics: A Comprehensive Guide

Infrared (IR) optics is an integral part of many technologies, including LiDAR, night vision, thermal imaging, and spectroscopy. As the technology and applications continue to improve, so too does the need for high-quality infrared optics. In this article, we will take a closer look at infrared optics, the materials used in their manufacture, and their applications.

What is infrared optics?

Infrared optics refers to optical components designed to operate in the infrared wavelength range that is invisible to the human eye. These components require specialized materials and equipment to effectively manipulate and measure infrared light.

Applications of infrared optics

Infrared optics has a wide range of applications:
LiDAR (Light Detection and Ranging): used in self-driving cars and mapping.
Night vision: enhances visibility in low-light conditions.
Thermal imaging: detects heat signatures for security and medical diagnostics.
Spectroscopy: analyzes the composition of materials.

Types of IR Optics

1. Transparent in Visible-IR Optics

These materials are transparent in both the visible and infrared ranges:
ZnSe (zinc selenide)
CaF2 (calcium fluoride)
MgF2 (magnesium fluoride)
BaF2 (barium fluoride)
Fused quartz (for NIR only)
Sapphire (for NIR only)
Optical crown borosilicate (for NIR only)

2. Opaque in Visible-IR Optics

These materials are opaque to the human eye but transmit infrared signals:

3. IR Filters

IR filters restrict infrared transmission to a specific wavelength range, ensuring that only the desired infrared wavelengths are transmitted.

4. IR Mirrors

These mirrors are designed to reflect infrared light and can be used in a variety of applications that require infrared light redirection and focusing.

5. IR Laser Optics

These optics are specialized for focusing and manipulating laser beams at specific infrared wavelengths, which is critical for precision applications in the medical and industrial fields.

MOK Optics’ Capabilities in IR Optics

MOK Optics specializes in manufacturing high-quality IR optical components using a range of advanced materials and technologies:
Materials: including ZnSe, CaF2, MgF2, BaF2, fused silica, sapphire, Teflon, silicon and germanium.
Custom Sizes: Capable of producing components from 2mm to 600mm in size with a tolerance of ±0.1mm.
Surface Quality: High surface quality is ensured, with 60-40 as standard.
Coatings: Anti-reflective (AR) coatings, oleophobic coatings and custom screen printing are available to enhance performance and durability.
MOK Optics is committed to meeting the precise specifications and requirements of its customers, providing tailored solutions for a wide range of IR applications.

For more information or to discuss your specific IR optics needs, please contact our business team.