Optical Datasheets

Precision data for optical engineering

Reynard has been a supplier of custom optics and thin-film coatings UV-IR since 1984. Our capabilities include manufacturing custom thin-film optics 0.2µm to 15µm, offering custom optical coating types, optical fabrication, diamond point turning, MRF, and a producer of photolithography patterned optic geometries down to 5µm for an array of stringent applications. We offer the following optical product datasheets to be downloaded for your reference.

ISO 9001:2015 Certified, ITAR Registered and Cybersecurity Compliant.

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Circular Variable Neutral Density (CVND) Optical Filters

Circular Variable Neutral Density (CVND) filters are best used in high-quality optical systems to change the intensity of light from 100% to less than 0.1%. As the filter rotates, the beam intensity is reduced due to the density variation of a gradient metallic coating around the filter. Available from the UV to Infrared, density neutrality can be achieved for narrow band applications, such as lasers, to wide band applications, such as the spectrum of white light. These filters are fully customizable in optical density gradient function, transmission gradient function, substrate type, coating material, and size to match your application requirements. Capabilities include custom optics, thin-film coatings, optical fabrication, diamond point turning (DPT), magnetorheological finishing (MRF), and photolithography patterns. ISO 9001:2015, ITAR, and Cybersecurity (CMMC).

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Bullseye® Apodizing Optical Filters

Bullseye® Apodizing Filters are customizable density gradient filters that change radially from the center to the outside of the optical component. These filters are used to eliminate undesirable intensity variations in optical systems or to modify the wavefront of an illumination source. Configurations include both dark-in-the-center, typically used to reduce low-frequency variations or to create top-hat wave fronts, and clear-in-the-center functions, typically used to reduce high-frequency variations outside of the main beam profile. Other in-house capabilities include custom optics, thin-film coatings, optical fabrication, diamond point turning (DPT), magnetorheological finishing (MRF), and photolithography patterns. Reynard is ISO 9001:2015 , ITAR, and Cybersecurity (CMMC).

Apodizing Filters are customizable density gradient filters that change radially from the center to the outside of the optical component. These filters are used to eliminate undesirable intensity variations in optical systems or to modify the wavefront of an illumination source. Configurations include both dark-in-the-center, typically used to reduce low-frequency variations or to create top-hat wave fronts, and clear-in-the-center functions, typically used to reduce high-frequency variations outside of the main beam profile. Other in-house capabilities include custom optics, thin-film coatings, optical fabrication, diamond point turning (DPT), magnetorheological finishing (MRF), and photolithography patterns. Reynard is ISO 9001:2015 , ITAR, and Cybersecurity (CMMC).

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Linear Apodizing Optical Filters

The Linear Apodizing filters are used to eliminate undesirable intensity variations in optical systems such as in spectrometers. Inserting a Linear Apodizing filter in front of a detector can be used as a soft slit to reduce diffraction patterns, eliminate detector saturation and obtain a uniform
light intensity to the detector. Linear Apodizing filters are customizable density gradient filters that have constant density in one direction and variable neutral density filter in the other direction.

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Diamond Point Turning, Flycutting & MRF

Diamond Point Turning (DPT) freeform optics and advanced Magnetorheological Finishing (MRF) polishing are performed entirely in-house, supporting precision optical components from 6 mm to 250 mm. Capabilities emphasize high-quality fabrication for IR, exotic, and III-V crystal materials, as well as reverse axicons with full 360-degree window coatings. Both specialized and standard IR substrates, such as Si, Ge, ZnS, and ZnSe, are enhanced with high-performance thin-film coatings, including anti-reflection (AR), single- and multi-band filters, blocking layers, metallization, and gradient ND coatings tailored to specific applications. Aspheric, spherical, cylindrical, and freeform optics are all designed, manufactured, coated, and tested internally. DPT methods include axis-symmetric grinding, rotary B-axis grinding, polygon fly-cutting, and spiral milling. Additional in-house services cover custom optics, thin-film coating, optical fabrication, diamond turning, MRF polishing, and photolithographic patterning. Reynard maintains ISO 9001:2015 certification and complies with ITAR and CMMC cybersecurity standards.

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Dual-Band Infrared Bandpass Optical Filters

Reynard dual-band infrared (IR) bandpass filters provide high in-band transmission in both the MWIR (mid-wave, 3-5µm range) and the LWIR (longwave, 7.5-13.5µm range) simultaneously, while providing high out-of-band (OOB) rejection. In-band transmission levels above 90% have been demonstrated on multiple substrate materials with different wavelength and transmission performance requirements. MIL-STD environmental testing has verified excellent durability and stable spectral performance. Direct spectral measurement at 80K (LN2) demonstrates cryogenic temperature durability and minimal wavelength shift from ambient conditions (dx/dT). Coatings can be applied to small or large substrates with plano or curved surfaces, all with excellent part-to-part and edge-to-edge uniformity. These coatings are ideal for current and next-generation infrared imaging systems that require high-performance in-band and out-of-band blocking in
multiple wavelength bands. Reynard can customize any filter to meet the performance needs of your system. All manufacturing is done in-house for improved quality, ease of communication
and innovative customization.

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Dual-Band Infrared AR Optical Coatings

Current and next-generation infrared (IR) imaging systems require simultaneous performance at the MWIR (mid-wave, typically 3-5µm) and LWIR (long-wave,typically 8-12µm or 7.5-13.5µm) spectral bands. Dual-band atmospheric transmission performance is challenged to equal or outperform the classic single wavelength band designs. As IR imaging instruments utilize many transmissive elements in the optical path, maximizing per-element throughput is critical to
achieve high-levels of system performance.

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Optical Fabrication

Reynard has a full service, in-house optical fabrication facility designed to meet your precision optical requirements. Shaping is performed on CNC Mills, semiconductor grade dicing saws,
and optical edgers and then measured with highly accurate, calibrated hand tools and instruments. Surface finishing progresses from rough grinding through precision lap and spindle polishing to achieve highly accurate thickness, surface quality, and surface roughness. Bevels are added to reduce sharp edges and indiscriminate chipping. Diamond turned spherical, aspherical, diffractive and freeform optical components are produced and measured in-house on compatible materials. Optics can be completed with Magnetorheological Finishing (MRF) and measured with contact or non-contact instruments. We process a variety of optical materials from popular visible and UV materials such as borosilicate, fused silica, and colored glass to infrared materials including Germanium, Silicon, Zinc Selenide, and multi-spectral Zinc Sulfide. We also are familiar with working on a variety of exotic crystals and chalcogenide materials for use in the 1 to 16um (SWIR, MWIR, & LWIR) wavelength regions. Whether you need production-scale manufacturing, a one-off prototype, or a complex custom optic, our team is ready to help. Contact us today.

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Photolithography Pattern Optics

Reynard offers custom photolithography services in-house to create detailed patterned optics. Photolithography is a technique that uses light to produce small patterns over a substrate to protect selected areas of it during the etching or deposition process. Our contact exposing technique can achieve geometries as small as 5 microns on substrates up to 18” in diameter utilizing a variety of thin film coating materials. Metallic or dielectric materials are selected based on the application’s transparent, reflective, absorption and/or conductive optoelectrical requirements. In addition, patterns can be applied to most substrate materials, including plastic sheeting. By customizing your pattern and thin-film coating needs, Reynard can realize the ideal optic for your application. All manufacturing is done in-house for improved quality, ease of communication and innovative customization

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Custom Optics & Thin-Film Coatings

Reynard offers comprehensive in-house capabilities to design, fabricate, and qualify state-of-the-art optical components and coatings for a wide range of applications. Our precision optics are deployed in high-performance systems engineered to operate under extreme conditions. With extensive experience in ultraviolet, visible, infrared, and broadband high-resolution optics, Reynard applies proven expertise to meet customer specifications and address complex defense challenges. Capabilities include custom optics, thin-film coatings, optical fabrication, diamond point turning (DPT), magnetorheological finishing (MRF), and photolithography patterns. ISO 9001:2015, ITAR, and Cybersecurity (CMMC).

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Optical Fabrication & MRF

Shaping of optical components is carried out using CNC mills, semiconductor-grade dicing saws, and precision optical edgers, followed by measurement with calibrated, high-accuracy hand tools and instruments. Surface finishing advances from coarse grinding to precision lapping and spindle polishing, achieving tight tolerances in thickness, surface figure, and surface roughness. Protective bevels are applied to minimize sharp edges and prevent chipping. Diamond-turned spherical, aspherical, diffractive, and freeform optical components are manufactured and metrologically verified in-house on compatible substrate materials. Optical surfaces may be further refined using Magnetorheological Finishing (MRF) to achieve enhanced surface
figure and finish. Dimensional and surface characterization is performed using both contact and non-contact metrology systems to ensure compliance with stringent optical performance specifications.

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