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From chemistry to components

For over 35 years Cevians has been at the forefront of material and optical components design and manufacturing. We offer over 16 unique glass and 25 polymeric chemistries and have developed 100’s of custom formulations, synthesizing and transforming materials into finished components.

Our expertise includes high-performance thin-film coatings for cutting-edge applications that require harsh environment resistance and demanding performance from UV, visible, NIR, and Infrared. We combine our experience in material sciences and applied engineering for ultimate optical component integrated lighting, optical materials, and electro-mechanical structures.

Products

Capabilities

  • Chemical Synthesis

    • Organic and inorganic synthesis
    • Complex organic molecules
    • Total synthesis via linear or convergent approaches
    • Rapid scale-up and supply of scaffolds, building blocks, and intermediates up to kilo scale (non-GMP)
    • Synthesis, isolation, and characterization of reference compounds using state-of-the-art techniques such as NMR, MS, Raman, and FTIR.
    • Techniques such as LC-MS/MS and LC-MS using accurate mass measurement for material characterization
    • One-pot multicomponent tandem polymerization reactions (MCTP)
    • Variable temperature range from -90 to 300 °C
    • Multi-step synthesis, multiple 5 gallons reactors
    • Impurity profiling
    • Molecular and chemical structure analysis
    • Crystallization: nucleation, growth, oiling out, agglomeration, breakage, polymorphism chemistry
  • Polymer Processing

    • Material formulation, controlling, internal diffusion, light transmission, surface finish, UV resistance, chemical compatibility
    • Multiple high pressure, temperature controlled extruders, 10,000 psi, 300 degrees C
    • Hot runner systems
    • Knife gate valve deduster
    • Dryers, annealing ovens
    • Roll to roll lamination, 36”, hot/cold process
    • Film extrusion, 36 “ width
    • Injection molding, thermoplastic 15-25 T, insert molding, over-molding
    • Sheet forming, 24”x 24”, 0.600” thick
    • Polymer casting, urethane, PMMA
    • Material finishing, die-cutting, laser marking and cutting, silk screening, CNC machining, coating (oleophobic, hard coating 7H+, antireflection coating, ITO coating, lamination, optical bonding, rubber stamping)
  • Glass Formulation

    • Custom glass formulation
    • Melting, small volume
    • Cutting
    • Double or single side polishing ranging from 24” to 56”, substrates from 3mm to 600mm
    • Scribing 24”x24”
    • Dicing 18”x24”
    • Lapping
    • Edge finishing, pencil, ground, chamfer
    • Silkscreening
    • Laser marking
    • Machining
    • Molding, low volume
  • Optical Spectroscopy

    • Spectrophotometers, 175nm to 3.3um, 8 absorbent levels, variable slit width to 0.01nm minimal noise and stray light with double littrow monochromator, Schwarzschild coupling optics for high accuracy at low transmission levels, automatic goniometer for multiple angle measurements
    • High sensitivity, high-speed, spectrometers, thermoelectrically cooled detectors, low stray light, 200-1,200nm with a high quantum efficiency
    • Thermoelectric cooled spectrometer, near-infrared range up to 1,700nm, high resolution 1.7nm, high signal to noise ratio >1,500:1, low stray light <1.2%
    • Automated goniometer spectrometers
    • High speed, automated large area spectrometer, 200-1,200nm, <2 min, 36 points measurements
    • Imaging colorimeter, cooled CCD sensor, 1,000,000:1 dynamic range, pixel array 4250 x 2838, luminance detection as low as 0.000 02 cd/m2, luminance repeatability within +/0.03%
    • Photometric camera
    • Automated large surface spectrophotometer
    • Night vision goggles
    • Haze meter, gloss meter
    • Integrating spheres
    • High ambient light contrast measurement, MIL-L-85762A
  • Testing Capabilities

    • Solar radiation MIL-STD-810, Method 505.5 Procedure I, cyclic exposure, and Procedure II non-cyclic for actinic effects evaluation.
    • Thermal shock, MIL-STD-810G. METHOD 503.5-7, Mil-Std 202G
    • Thermal cycle, MIL-STD-883, 1010.8, Method 501.6,502.6
    • Humidity method 507.6
    • Altitude method 500.5-6 to 80,000 ft
    • Salt fog method 509.6
    • Electromagnetic compatibility MIL-STD-461G
    • Abrasion ASTM D4060 - 19
    • Scratch test ASTM D7027 – 20, ASTM G171 - 03(2017), ASTM C1624
    • Impact resistance ASTM D256, ASTM D1822, ISO 7665-1, ASTM D5420-16
    • Ball drop ASTM F3007 - 19
    • Surface tension tensiometer, Young-Laplace equation, ASTM D971
    • Immersion Method 512.6
    • Peel strength actuation force ASTM D1876, ASTM D903-16
    • Fluid contamination method 504.2
    • Rain Method 506.6
    • Fungus Method 508.7
    • Sand and Dust Method 510.6
    • Explosive Atmosphere Method 511.6
    • Acceleration Method 513.7
    • Vibration Method 514.7
    • Acoustic Noise Method 515.7
    • Shock Method 516.7
    • Gunfire Shock Method 519.7
    • Ballistic Shock Method 522.2
    • Vibro-Acoustic/Temperature Method 523.4
    • Mechanical Vibrations of Shipboard Equipment (Type I – Environmental and Type II – Internally Excited) Method 528.1
  • Thin-Film Coating

    • Optical thin-film coatings 0.3 – 20 microns, plasma sputtering, and IAD Ebeam
    • Products can be as large as 452 square inches.
    • Experience with borosilicate, filter glasses, fused silica, sapphire, 1mm to 500mm
    • Up to 99% passband transmission and OD 7 blocking over detector range
    • FWHM 1-2% of CWL
    • High uniformity over large surfaces
    • Low sensitivity to angles of incidence (AOI)
    • Environmental stability, no shift with humidity and temperature variation
    • Durability MIL-C-48497A and Environmental MIL-STD-810F & MIL-STD-883
    • Filter performance stable across temperature range -55°C to 150°C and thermal shock
  • Standard Coatings (0.3 – 20 microns)

    • Antireflection
    • Beamsplitters
    • Conductive / Indium Tin Oxide (ITO)
    • Dichroics
    • Dielectrics
    • Filters
    • High reflection
    • Metal/Protective
    • Specialty and Custom Designed
  • Clean Manufacturing Environment

    • Clean rooms, ISO 14644-1 Class ISO 3 and ISO 4
    • Laminar flow clean stations, ISO 14644-1 ISO 5
    • Automated aqueous ultrasonic clean line, multiple tanks, large capacity
    • Dust-free surface modification treatment
  • Machining/Finishing

    • CNC milling, router, lathe for metals and polymers
    • Sandblasting
    • Priming, painting, silk screening, rubber stamping, laser engraving
    • Laser marking, cutting, CO2, YAG
    • Stamping and die cutting
  • Engineering Tools

    • Solidworks
    • Mentor Graphics PADS-professional
    • MTBF MIL-Handbook--217F prediction software
    • Zemax OpticStudio, OpticsBuilder
    • MiniTab
    • GO-Optical simulation, transmission, chromaticity radiance
    • Software Spectra, TFCalc
    • Design to MIL-STD-1472, DO-160, MIL-STD810, MIL-STD-3009, MIL-L-85762, MIL-STD-704, MIL-STD-461, IP68, MIL-STD-202
    • Ascalaph designer molecule designs
    • Spartan-chemical structure

Optical Products

  • Are your products RoHs and REACH compliant?

    Yes, all our products satisfy the requirements of RoHs and REACH.

  • Do you have the ability to customize optical filtering components?

    Yes, Cevians is primarily a custom design and manufacturing company with 90% of our products manufactured for one application and one customer. We work closely with customers to define requirements, design, validate, and qualify products. Cevians has extensive material, components, and formulation databases developed over the last 35 years that enables rapid and optimal product development.

  • Can Cevians provide added value to its optical products?

    Yes, Cevians has developed a vast number of electro-mechanical capabilities to support its Displays Business Unit. As a result, our optical products have benefited from expertise that is generally not available to other optics and thin-film coating companies. This added expertise includes mechanical engineering, system engineering, electrical engineering, hardware, and software development.

  • Can you apply coating on customer furnished substrates?

    Yes, Cevians is familiar with a wide range of glass and polymeric materials. We can process your material in accordance with our inventory management procedures that identify and accounts for your material at all times.