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Lenses & Mirrors

Aspherical Lenses
Aspherical Lenses
Aspherical Lenses

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Aspherical lenses have complex curved surfaces, where the radius of the curvature changes according to the distance from the optical axis. The use of aspherical lenses in optical systems enables the optical designers to use fewer elements than conventional spherical optics. This allows for a more compact design, lower weight and exceptional performance. By combining high precision CNC polishing and 3D non-contact measurement metrology techniques, II-VI produces very high-quality aspherical lens for a wide variety of applications.
Aspherical Lenses
https://www.epsglobal.com/getmetafile/0b2bfd97-781a-4909-a987-32e66ea056af/aspherical-lenses?maxsidesize=400
<p>Aspherical lenses have complex curved surfaces, where the radius of the curvature changes according to the distance from the optical axis.</p>
Aspherical Lenses
Aspherical Lenses
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Beamsplitter Cube
Beamsplitter Cube
Beamsplitter Cube

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II-VI’s non-polarizing beamsplitter (NPBS) cube is composed of a pair of precision high-tolerance right-angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms. The low polarization dependence of the metallic-dielectric coating allows the transmission and reflection of s- and p-polarization states to be within 5% of each other. This means that the NPBS will not need to change the polarization of the incident beam. II-VI can supply both broadband and single wavelength for the NPBS. To produce maximum transmission efficiency for the appropriate wavelength range, an antireflective coating can be applied to each face of the beamsplitter.
Beamsplitter Cube
https://www.epsglobal.com/getmetafile/5e5ade0e-5c29-42b8-89b2-c320e1d4d11b/beamsplitter-cube?maxsidesize=400
<p>II-VI’s non-polarizing beamsplitter (NPBS) cube is composed of a pair of precision high-tolerance right-angle prisms cemented together with a metallic-dielectric coating on the hypotenuse of one of the prisms.</p>
Beamsplitter Cube
Beamsplitter Cube
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Cylindrical Lens
Cylindrical Lens
Cylindrical Lens

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A cylindrical lens is a lens that focuses light into a line, as a spherical lens would. The curved face or faces of a cylindrical lens are sections of a cylinder, and they focus the image passing through them into a line parallel to the intersection of the surface of the lens and a plane tangent to it. The cylindrical lens compresses the image in the direction perpendicular to this line and leaves it unaltered in the direction parallel to it in the tangent plane. Cylindrical lenses focus or expand light in one axis only. They can be used to focus light into a thin line in optical metrology, laser scanning, spectroscopic, laser diode, acousto-optic, and optical processor applications. They also can be used to expand the output of a laser diode into a symmetrical beam. In the telecom industry, cylindrical lenses are widely used in WSS, 40G/100G modules, and pump laser modules.
Cylindrical Lens
https://www.epsglobal.com/getmetafile/507d5afb-66a8-44ef-9dfd-d874a8b84023/cylindrical-lens?maxsidesize=400
<p>A cylindrical lens is a lens that focuses light into a line, as a spherical lens would. The curved face or faces of a cylindrical lens are sections of a cylinder, and they focus the image passing through them into a line parallel to the intersection of the surface of the lens and a plane tangent to it.</p>
Cylindrical Lens
Cylindrical Lens
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Low-Roughness Aluminum Mirrors
Low-Roughness Aluminum Mirrors
Low-Roughness Aluminum Mirrors

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II-VI manufactures low-roughness aluminum mirrors in various shapes and surface profiles, including off-axis parabolas and freeform mirrors. Combined with II-VI’s high-reflectivity dielectric coatings, these mirrors minimize scatter and maximize reflection. This makes them an ideal solution for UV-visible and infrared spectroscopy, LiDAR scanning, and many other applications.
Low-Roughness Aluminum Mirrors
https://www.epsglobal.com/getmetafile/cabdd862-b97d-4c02-bc8d-e67677493b30/low-roughness-aluminum-mirrors?maxsidesize=400
<p>II-VI manufactures low-roughness aluminum mirrors in various shapes and surface profiles, including off-axis parabolas and freeform mirrors.</p>
Low-Roughness Aluminum Mirrors
Low-Roughness Aluminum Mirrors
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Metal-Coated Mirror
Metal-Coated Mirror
Metal-Coated Mirror

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A mirror is an object with a surface that has good specular reflection and is smooth enough to form an image. II-VI provides many types of mirrors, including plane mirrors (meaning the surface is flat) and curved mirrors (meaning the surface is curved, producing magnified or de-magnified images, focusing light, or distorting the reflected image). Metal coatings can include gold, silver, or aluminum. II-VI produces metal-coated mirrors that offer a good combination of performance and value for general-purpose applications. These mirrors operate over a very broad spectral range from UV to visible and visible to near- and mid-IR. They are relatively insensitive to angle of incidence and polarization.
Metal-Coated Mirror
https://www.epsglobal.com/getmetafile/94055b69-16b0-474b-ac67-29e37bdaa428/metal-coated-mirror?maxsidesize=400
<p>A mirror is an object with a surface that has good specular reflection and is smooth enough to form an image. II-VI provides many types of mirrors, including plane mirrors (meaning the surface is flat) and curved mirrors (meaning the surface is curved, producing magnified or de-magnified images, focusing light, or distorting the reflected image).</p>
Metal-Coated Mirror
Metal-Coated Mirror
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Spherical Lens
Spherical Lens
Spherical Lens

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Spherical lenses are used for beam focusing and beam expansion in a wide variety of applications from microscopy to laser processing in industries such as life sciences, imaging, industrial, defense, and telecom. II-VI provides plano-convex, bi-convex, plano-concave, bi-concave, meniscus, and achromatic lenses.
Spherical Lens
https://www.epsglobal.com/getmetafile/13800822-0ba7-4953-81ef-364ae567d812/spherical-lens?maxsidesize=400
<p>Spherical lenses are used for beam focusing and beam expansion in a wide variety of applications from microscopy to laser processing in industries such as life sciences, imaging, industrial, defense, and telecom. II-VI provides plano-convex, bi-convex, plano-concave, bi-concave, meniscus, and achromatic lenses.</p>
Spherical Lens
Spherical Lens
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
Ball Lens
Ball Lens
Ball Lens

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Ball lenses are highly polished spheres made of optically transparent homogeneous materials. A carefully controlled manufacturing process produces spheres with precise diameters and unsurpassed surface quality. Ball lenses are commonly used for laser collimating and focusing, laser-to-fiber coupling, fiber-to-fiber coupling, and fiber-to-detector coupling. Larger spheres are easier to handle and ease the sensitivity of translational alignment. Half-ball (hemispherical) lenses are ideal for applications such as fiber communications, endoscopy, microscopy, optical pickup devices, and laser measurement systems.
Ball Lens
https://www.epsglobal.com/getmetafile/07b7037b-a2d9-4ef9-ad5b-1e55ee410961/ball-lens?maxsidesize=400
<p>Ball lenses are highly polished spheres made of optically transparent homogeneous materials. A carefully controlled manufacturing process produces spheres with precise diameters and unsurpassed surface quality.</p>
Ball Lens
Ball Lens
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar
C-Lens & D-Lens
C-Lens & D-Lens
C-Lens & D-Lens

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Among the many microlenses produced by II-VI are the C-lens and D-lens types, which are widely used for collimating or coupling beams after the fiber. II-VI’s C- and D-lenses are specifically designed for fiber-optics applications such as collimators, isolators, switches, collimator arrays, and laser assemblies. Compared with other gradient-index lenses, C-lenses have several advantages, including low cost, low insertion loss in long working distances, and a wide working-distance range. With more than 10 years of experience in the lean production of microlenses, II-VI can provide high-volume C- and D-lenses in diameters ranging from 1 mm to 3 mm.
C-Lens & D-Lens
https://www.epsglobal.com/getmetafile/9c938a8e-07c2-4bc6-9999-d1e7de487bc2/c-lens-d-lens?maxsidesize=400
<p>Among the many microlenses produced by II-VI are the C-lens and D-lens types, which are widely used for collimating or coupling beams after the fiber.</p>
C-Lens & D-Lens
C-Lens & D-Lens
II-VI | Finisar
https://www.epsglobal.com/getmetafile/38c38d6f-96fa-4ba8-9fe1-f446f11e2e1a/II-VI | Finisar

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