Meller Optics, Inc.
Providence, RI 02940
Dec 18, 2007 Featuring 9 Moh surface hardness, Custom Sapphire Windows are unaffected by corrosive fluids, abrasive particles, temperatures up to 1,000°C, and pressures up to 10,000 psi. Units range from ¼-10 in. in diameter and from ½ mm to 1 in. thick, making them suited for viewing inside pipes, pumps, vessels, or instruments containing caustic fluids. Windows provide 270 nm to 4.7 µm range of transmission, with up to 85% transmission uncoated and up to 99% with A/R coatings on 2 sides.

Meller Optics, Inc.
Providence, RI 02940
Dec 12, 2007 Customized Sapphire optics are available as lenses, windows, domes, prisms, tubes and rods in various sizes and as balls measuring 0.1 mm to 1/2 in. dia. with 0.000025 in. per ball sphericity. Surface finishes come in 20-5 scratch-dig, flatness to 1/4 wave, and parallelism from 20 to 2 arc/secs. Options include drilled holes, slots, wedges, stepped edges, elliptical edge shaping, metallization, and A/R coatings featuring Moh 9 hardness for use in critical applications.

Laser Optex, Inc.
Beijing city 100018  China
Apr 06, 2006 High power laser windows have flatness and surface finish optimized to lambda/10 and 40/20-10-5. Excimer window is made of VUV grade CaF2 and MgF2, and offers transmittance at 157 and 193 nm. Made of fused silica, Nd:YAG window allows transmission from UV to NIR. Sapphire single crystal IR window features minimal lattice distortion and inclusion, while CO2 window, made of GaAs ZnSe crystal, offers IR absorption coefficient of 10.6 µm.

Meller Optics, Inc.
Providence, RI 02940
Mar 28, 2005 Viewport Optics Preparation Service provides ground window blank to customer for metallization and then performs final polishing, without disturbing metallization, once it is returned. Capable of working with ZnSe, ZnS, CaF₂, MgF₂, as well as other materials, offering includes windows from ¼–3 in. OD and 2–10 mm thick in stepped- or straight-wall configurations. Surface finishes from 10 waves to 1/10 wave and 60–40 scratch-dig are typ.

Infrared Windows
Sherwood Park T8H 2A8  Canada
Jan 11, 2005 Able to work with short- and long-wave infrared cameras, IR windows are offered in 2, 3, and 4 in. sizes that allow users to safely inspect medium- and high-voltage equipment without having to open cabinet door or enclosure. Depending on application, users can choose fixed crystal lens, covered carrier, or holder mounted on electrical enclosure for use with removable lens or grill system. Windows are UL, ULC, IP65, and 2X rated.

Meller Optics, Inc.
Providence, RI 02940
Jun 04, 2004 Custom fabricated windows, used as viewports, protective covers, and front surface optics, are suitable for use in hostile environments. Moh 9 surface hardness provides optimal abrasion resistance, and construction is impervious to water, acids, alkalis, and harsh chemicals to 1,000ºC. Available in sizes from ¼–10 in. dia, with thicknesses from ½ mm to 1 in., windows can be fabricated with flatness held to 0.5 fringes of HeNe and parallelism from 20–2 arc/sec.

Meller Optics, Inc.
Providence, RI 02940
Mar 31, 2004 Custom fabricated sapphire windows, available in sizes up to 18 in. in dia. x ¼ in. thick, feature transmitted wavefront to ¼ wave, parallelism to 2 arc-sec, and 70:1 aspect ratio. Manufactured to end-user specifications, products have Moh 9 surface hardness for optimal abrasion resistance. Features include surface finishes to 60-40 scratch-dig as well as resistance to water, acids, alkalis, and harsh chemicals to 350°C.

Newport Corp.
Irvine, CA 92606
Feb 05, 2004 Windows offer surface flatness specification of 1/20 waves, scratch and dig of 10-5, and parallelism of <30 arc sec. Windows are available in BK-7 glass and UV-grade fused silica. Standard diameters range from ½–2 in., with thickness of 0.24 or 0.39 in. Windows are suitable for R&D laboratories for intracavity laser applications, holography, and multi-photon imaging. OEM applications include diffraction-limited, laser-based microscopy.

Edmund Optics
Barrington, NJ 08007
Mar 25, 2003 Tech Spec(TM) UV Fused Silica Right Angle Prisms in standard tolerance offers ±5 arc-min angle tolerance and ½ wave surface accuracy. High-tolerance version offers ±40 arc-sec angle tolerance and 1/10 wave surface accuracy. Tech Spec(TM) Precision UV Fused Silica Optical Windows range from 10-25 mm dia and come with or without VIS 0° Anti-Reflection coating. Tech Spec(TM) UV Fused Silica ND Filters offer optical densities from 0.3-3.0, and are spectrally flat from 200-700 nm.

Meller Optics, Inc.
Providence, RI 02940
Dec 12, 2002 Custom optics include balls, plano convex and plano concave lenses and windows, rectangles, squares, and cones. Design characteristics include steps, wedges, precision holes, and radical curves. Optics exhibit Moh 9 hardness, diameter tolerances to ±0.001 in., and thickness tolerances to ±0.0005 in. With surface finishes to 10–5 scratch-dig, products have better than 2 arc-sec. in./in. parallelism. Units transmit UV to IR with up to 99% transmission.

Meller Optics, Inc.
Providence, RI 02940
Oct 21, 2002 Custom Ultraflat Large Sapphire Windows offer parallelism to 2 arc sec, 20:1 aspect ratios, and surface finishes to 40-20 scratch-dig. Manufactured in sizes up to 6 in. OD ±.010 in., windows exhibit Moh 9 surface hardness for abrasion resistance. Impervious to water, most acids, alkalis, and harsh chemicals to approximately 350°C, they are suitable for use as viewports, laser windows requiring large viewing diameter, and as front surface optics.

Meller Optics, Inc.
Providence, RI 02940
Jun 13, 2002 IR and broadband windows and lenses can be fabricated from zinc selenide, zinc sulfide, germanium, silicon, calcium fluoride, and magnesium fluoride for transmission to 20 micrometers. Configurations include plano convex, plano concave, and meniscus with surface figures of 1/4 to 1/10 wave and 20-10 scratch-dig. Available with or without A/R coatings, they can be produced in 1/4 to 5 in. dia with ±.005 in. tolerances on dia and ±.002 in. on thickness.

Meller Optics, Inc.
Providence, RI 02940
Nov 19, 2001 High-Strength windows measuring 2.7 in. dia. x 1.5 in. thick with Moh 9 hardness can withstand up to 18,000 psi. Windows are insoluble in water, common acids and alkalis to approximately 1,000°C. Suitable for wide range of applications in hostile environments, windows can be custom fabricated in sizes from 1/4 to 6 in. dia. and up to 1.5 in. thick. Applications include vacuum furnaces, chemical processing, and general high-pressure equipment.