Knight Optical provide custom and stock precision optical components for the latest LiDAR systems. Our components are utilized in atmospheric monitoring, topographical, laser guiding and ranging instruments used in the harshest environments. These include high grit and sand levels and extreme temperatures in arctic and desert climates.
LiDAR systems are used in monitoring wind speeds and directions on proposed and existing wind farm sites. This leads to wind farm optimizations through resulting increases in energy outputs. This gain in performance is achieved from the LiDAR system which is mounted to the nacelle of wind turbines automating the adjustment of blades to increase energy generations. The adjustments to the blades are due to the Doppler LiDAR system measuring the frequency shift of the backscattered light and thus calculating the wind velocity.
Airborne LiDAR systems are also used in surveying and for topographical measurements. Using the LiDAR system a Digital Terrain Model (DTM) or Digital Elevation Model (DEM) can be produced. These are typically 3D representations of a terrain’s surface. The system is typically integrated onto a plane which would then pulse a laser signal onto the terrain and dependent on the elevation of the surface, this would influence how long the pulse would return to the detector. These Airborne systems typically have protective windows which Knight Optical can provide with hydrophobic coatings and AR topcoat which allows for maximum signal return without the worry of pollution or condensation in the atmosphere.
LiDAR systems have also been the bane for many motorists where this technology have been utilized in traffic speed law enforcement. These systems are used as traffic speed law enforcement camera systems which can be found on motorways and major highways globally. Additionally they can be miniaturized into handheld systems which can accurately monitor the speed of single passing cars. These LiDAR systems are often integrated in conjunction with Automatic Number Plate Reading (ANPR) systems which allows for a traffic enforce to quickly determine the offending vehicle and to automate the ticketing enforcement process.
Recently development of vehicular LiDAR systems have taken off. These are systems for adaptive cruise control, whereby the system identifies the distance of the vehicle in front and applies the breaks to slow or stop the vehicle automatically. Taking this idea forward, more recently LIDAR’s have been used in driverless cars. Whereby the system produce autonomous vehicles which can perform complex manoeuvers and drive in public with little or no input from a user.
Knight Optical offer the following optics for Lidar applications:
Front coated mirrors
Optimized for maximum reflectivity at 1550nm or other ranges in the visible or NIR spectrum
Other coatings to maximize reflection at a required wavelength are available with sheet sizes up to 1 meter square.
Designed from tough materials able to withstand impact damage as well as scratches from high grit environments, these windows protect the vital components of the LiDAR system and can be AR coated for improved transmission over LiDAR wavelengths. Typical materials used are Sapphire and UV grade fused silica
Materials span the visible and NIR spectrum and include:
Sapphire, silicon, BK7, quartz, fused silica, toughened borosilicate and many more.
These windows can also be provided with hydrophobic coatings which help minimize the impact of air pollution.
Stocked in a wide range of types and wavelengths or optimized for 1550nm.
High precision, AR coated Doublet lenses and Planoconvex as part of the receiving and delivery optics in a range of materials. These lenses are suited for laser alignment and beam shaping in lasers.
Download the application sheet for more information