Infrared Optics
An IR Lens is a lens component optimized to focus, collimate, or manipulate infrared radiation within the infrared spectrum (that is, the spectral portion between the wavelength range of 700nm and 1000μm), including Near-Infrared (NIR), Shortwave Infrared (SWIR), Midwave Infrared(MWIR), and Longwave Infrared (LWIR).
Hangzhou Shalom is an adept global supplier of IR Lens Components, our broad infrared lens production portfolios include Plano-convex IR Lenses, Plano-concave IR Lenses, Meniscus IR Lenses, Aspheric IR Lenses, Ball/Half-Ball Lens, etc. to achieve diversified functions as to focus, collimate, collect, and diverge lights. Besides the lenses, aluminum reflective mirrors designed for LWIR and MWIR long-focal-length thermal cameras are also accessible. We offer IR lens components made of various substrate materials, including Germanium (Ge), Silicon (Si), Zinc Selenide (ZnSe), Chalcogenide Glass, Sapphire, Calcium Fluoride (CaF2), Barium Fluoride (BaF2), Zinc Sulfide(ZnS), with their working wavelength range encompassing multiple Infrared wavebands. Coating options include broadband anti-reflection (BBAR) coating, long-pass anti-reflection coating, DLC coating, etc. Cutting-edge technologies like CNC and Single Point Diamond Turning (SPDT) techniques are utilized to enhance effectiveness and high precision. Before dispatch, strict QC inspections are carried out to secure the performance and durability of lenses. Exploiting the meticulous engineering of a complex of lens forms, material properties, and coatings, Shalom EO’s IR lens components cater to versatile applications including thermal imaging cameras for surveillance, security, industrial inspection, and medical diagnostics; infrared spectroscopes; lasers like CO2 lasers, fiber lasers, and semiconductor lasers; remote sensing and various other applications where infrared light needs to be controlled or directed.
For material comparison, Germanium Lens features a broad transmission range from 3-14 micro and a large refractive index, hence is prevalent for MWIR and LWIR thermal camera lens assemblies. ZnSe lens exhibits a low absorption in the mid-IR region and is excellent for CO2 laser output and MWIR pulsed lasers. Chalcogenide glass lens has eminent thermal properties and is ideal for designing cost-effective athermalized lens modules. Sapphire lens features unrivaled mechanical strength, and scratch/chemical resistance. CaF2 Lens demonstrates extensive transmission bands from UV to IR. BaF2 has similar properties to CaF2, the main difference is that barium fluoride is more resistant to high-energy radiation and sensitive to thermal shock/moisture. Silicon offers good transmission in the MWIR (CZ silicon) and LWIR (FZ silicon) with the additional advantages of ruggedness and lightweight.
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