Important Specs for Infrared Thermal Imaging Camera Lenses
When it comes to purchasing the proper infrared (IR) thermal imaging camera lens for your specific usage, understanding the technical specifications is crucial to ensure that you acquire the lenses that suit your intentions. This article will cover concepts, definitions, and the Impacts of the Important Specifications for Infrared Thermal Imaging Camera Lenses including detector type, resolution, FOV, f-number, etc.
General Introduction to Optical Coatings
This optical coating guide explores the fundamentals, types, materials, and processes, providing a detailed introduction to optical coatings for anyone seeking knowledge on this critical topic.
The Optical Transmission and Properties of Sapphire Windows
Sapphire Windows, often called Sapphire Glass Windows or Sapphire Optical Windows, made of single crystal synthetic sapphire (Al2O3), are becoming more and more indispensable in the exclusive fields of electro-optics due to their combination of superior optical, chemical, and mechanical properties. This article that Shalom EO presents concentrates on the optical transmission and the optical properties of sapphire windows, including the transmission wavelength range of sapphire, the transmission rate, the birefringence, and orientations. We have also analyzed the different growth methods and grades of sapphire crystals.
Laser Induced Damage Threshold Tutorial
Laser-Induced Damage Threshold, or LIDT is the highest fluence or power density of laser radiation incident upon the optical component before any unacceptable damage occurs. This article offers a basic tutorial and explanation of laser damage threshold, including the definition of LIDT. The test method of LIDT, laser-induced damage threshold for CW laser and pulsed laser, the calculation formula, the laser damage mechanisms, how to scale LIDT, the causes of laser damage, and high power laser optics/coatings.
How ZnS and ZnSe Are Replacing Germanium (Ge) in IR Optics
Due to recent exporting rules, the price of germanium on the global market is surging, and the delivery is much longer than before. Zinc Sulfide (ZnS) and Zinc Selenide (ZnSe) are increasingly used as substitutes for Germanium (Ge) in infrared (IR) optics. This article offers a detailed comparison and explanation of how ZnS and ZnSe are replacing Ge as IR optics in their optical performance, thermal and mechanical properties, and costs.
Why Gold Coating Remains Irreplaceable?
In optical drawings and purchase specifications, the term “Gold Coated” is often highlighted as a standalone requirement. At first glance, it may appear to be a premium or even conservative choice. In practice, however, gold coatings are specified not because they are expensive, but because they solve a set of engineering problems that few other materials can address simultaneously.