Hangzhou Shalom Electro-optics Technology Co., Ltd. Dia25.4mm EFL-150mm Corning7980-1D Plano Concave Lens Uncoated 1104-037

Features: • Wavelength range: 200-2200nm • High precision: λ/10 Irregularities and 10/5 S/D surface qualities • Ideal for various applications in the UV to NIR region • Standardized focal lengths and diameters convenient for OEM • Coating options: uncoated, V-coating or broadband anti-reflection (BBAR) coating • Applications: laser scanners, remote sensing, imaging instruments, fiber lasers, and interferometers Plano-concave Lensis a bulk optical singlet with a flat side and a convex side, which contribute to a negative focal length and a negative spherical aberration. Plano concave lens diverges collimated light beams from a virtual focus and therefore could be applied to Galilean beam expanders, also as components to increase the focal length of an optical instrument, or balance out the spherical aberration, improving image qualities. UV Fused Silicais the amorphous form of Silicon Dioxide. The material features superior transmission in the UV region and could be utilized for wavelengths ranging from Ultraviolet (UV) to Near-infrared (NIR) spectrum. Other than UV transmission, UV-grade fused silica glass also excels in terms of low thermal expansion, great chemical inertia, high optical homogeneities, and the absence of fluorescence under UV radiation. Compared with NBK7, the material is more reliable for high-temperature environments and has better transparency to ultraviolet lights. Our inspection procedure includes an in-process checking stage of the optical properties of lenses and a final test of coatings, dimension precisions, and the visual observation of scratch/dig, apertures, inclusions, etc. Hangzhou Shalom EO offers stocked and custom Plano Concave Lenses made from Corning High Purity UV Fused Silica Glass (Corning HPFS Glass), or JGS1 with excellent mechanical, and chemical rigidness(The lenses in the stock list are made from Corning 7980-0F, 7980-1D). These lenses could be applied for wavelengths ranging from 200-2200nm, and are high precision lenses with irregularities of λ/10, and surface qualities of 10/5 S/D. The UV Fused Silica plano concave lenses are optimized for various usages for various incorporations into laser scanners, remote sensing, imaging instruments, fiber lasers, interferometers, etc. The focal lengths of the stocked UV Fused Silica plano-convex lenses differ from -25mm to -100mm, while other focal lengths could be customized. Each piece of the lens will undergo strict inspection in Shalom EO’s in-house labs before dispatch, to assure tight tolerance and secure your interest. To further enhance the transmission of the UVFS plano-concave lens, Broadband Anti-reflection (BBAR) coatings could be furnished to accommodate the requirements for multi-wavelength and tunable lasers. V coatings, which are a special form of AR coatings that deliver an ultra-low reflection at a narrow band of designed wavelengths are available, too. These coated lenses are in particular advantageous for elevating the efficiencies of complex optical instruments. Besides, Uncoated UV Fused Silica plano concave lenses are also accessible in Shalom EO. Application notes: The curved surface should face the light source (Or in other words, the flat side should point to the focal plane you intend to modulate).