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Technological Capabilities

Optomechanical Assembling

Altechna has opened a new chapter in its optical manufacturing journey: with an increase in demand for optomechanical and optical assemblies, the company is strengthening and expanding its service by introducing a new line – bespoke assemblies and subassemblies based on customers’ designs:

  • Optical parts: prisms, waveplates, lenses, and other glass parts optically contacted or cemented together.
  • Optomechanical parts: optics mounted on various types of metal mounts and housings, either fixed or shifting.

Type of work offered

Altechna offers a variety of assembly and manufacturing solutions. Starting with exact build-to-print projects based on customer instructions, and ending with fully custom-designed solutions,these are tailored to fit the specific end-user needs.

 

Any work is accompanied by:

  • Rapid reviews of project needs by a dedicated engineering team
  • A design-to-cost mentality
  • A clear information flow, strict deadlines, and full customer involvement
  • Quality control pre- and post-manufacturing, all carried out in-house
  • Full traceability of each manufacturing stage

Our goal is to provide a service whereby we can help the end-user to gain the following additional benefits:

  • Time and resource savings: the complex, multi-stage processes required to build optomechanical sub-assemblies demand a large amount of internal resources and time.
  • Simplicity: the pre-built, aligned, and cleanroom-packed modules can be immediately incorporated into the systems of users.
  • Increased yield: reducing customer headaches from damages caused to precision optics when being built into assemblies.
  • Space-saving: with goods coming from Altechna, a company‘s own cleanroom areas and manufacturing lines can be reallocated to other projects.
  • Cost saving: a skilled team of technical experts is ready to help with your needs for the most competitive price on the market.

Benefits

Coating types

Highly reflective
Anti-reflective
Partially reflective
Wavelength separating
Broadband coatings
Polarizing coatings

Available Coating Technologies

Magnetron Sputtering

Magnetron Sputtering

Magnetron Sputtering (MS) is the best option for high-volume production for coatings comparable to Ion Beam Sputtering, at the expense of a slight reduction in surface quality.

Performance
Capacity
  • 518 pcs. of Ø 25.4 mm
  • 126 pcs. of Ø 50.8 mm
  • 42 pcs. of Ø 76.2 mm
  • 14 pcs. of Ø 200 mm
  • 5 pcs. of Ø 260 mm
  • Coating and highly customized mechanical solutions for custom-shaped substrates possible
Range
  • 400-3000 nm
Materials
  • Nb2O5, SiO2, Ta2O5

Ion Beam Sputtering

Ion Beam Sputtering

Ion Beam Sputtering (IBS) is the best option when extreme process control is required to achieve the highest lossless spectral performance possible in small volumes.

Performance
  • Minimum reflectance <0.1%
  • Maximum reflectance >99.99%
  • Extinction ratio 1:1000
Capacity
  • 53 pcs. of Ø 25.4 mm
  • 11 pcs. of Ø 50.8 mm
  • 6 pcs. of Ø 76.2 – 101.6 mm
  • 3 pcs. of Ø 101.6 mm
  • 1 pcs. of Ø 150 mm
  • Coating and mechanical solutions for custom-shaped substrates possible.
Range
  • 340-3000 nm
Materials
  • Al2O3, HfO2, Nb2O5, SiO2, Ta2O5, TiO2
  • Materials mixture

Electron Beam Evaporation

Electron Beam Evaporation

Electron Beam Evaporation (E-beam) is the best solution for a broad range of applications and wavelengths for which price-performance ratio is key.

Performance
  • Minimum reflectance <0.25%
  • Maximum reflectance >99.5%
  • Extinction ratio 1:200
Capacity
  • 90 pcs. of Ø 25.4 mm
  • 18 pcs. of Ø 50.8 mm
  • 6 pcs. of Ø 76.2 – 101.6 mm
  • Limited coating and mechanical solutions for custom-shaped substrates possible.
Range
  • 200-5000 nm
Materials
  • Ag, Al, Au
  • Al2O3, HfO2, Nb2O5, Ta2O5, TiO2, ZrO2
  • LaF3, MgF2

E-beam with Ion Assisted Deposition

E-beam with Ion Assisted Deposition

E-beam with plasma assistance (IAD) when you need to enhance coating environmental stability and push E-beam capabilities further.

Performance
  • Minimum reflectance <0.2%
  • Maximum reflectance >99.8%
  • Extinction ratio 1:200
Capacity
  • 90 pcs. of Ø 25.4 mm
  • 18 pcs. of Ø 50.8 mm
  • 6 pcs. of Ø 76.2 – 101.6 mm
  • Limited coating and mechanical solutions for custom-shaped substrates possible.
Range
  • 340-5000 nm
Materials
  • HfO2, Nb2O5, Ta2O5, TiO2, ZrO2

Technology Comparison

Magnetron Sputtering Ion Beam Sputtering Electron Beam Evaporation Ion Assisted Deposition
Spectral ranges 400-3000 nm 340-3000 nm 200-5000 nm 340-5000 nm
Capacity 1"* 518 53 90 90
Density Near bulk Near bulk Porous Dense
Aging effects No No Yes No
Environmental resistance High High Low Mid
Maximum reflectivity >99.9% >99.99% >99.5% >99.8%
Minimum reflectivity <0.1% <0.1% <0.25% <0.2%
Extinction ratio 1:1000 1:1000 1:200 1:200
Price** ●● ●●●

* Maximum capacity varies depending on required spectral specifications.
** On a scale from 1 to 3. Number “1” marks the price as low.

Spectral range by technology

ISO 7 Cleanroom Working areas

In recent years, Altechna has strengthened by investing in areas of manufacturing including a newly built cleanroom area, and new manufacturing equipment, as well as investing in team members’ technical training sessions.

Currently, we offer:

  • A 21 m² ISO 7 cleanroom working area, including active particle monitoring with relative humidity and temperature controls.
  • A choice of various acrylic-based and epoxy adhesives.
  • Vacuum outgassing oven, with temperatures up to 110 °C and <0.5 mbar.
  • Dedicated four-stage ultrasonic cleaning plant that provides spot-free zero-residue results.
  • Custom measurement-system set-ups based on the final application, replicating the customer’s system and requirements to test the goods.

Experienced Team

With dedicated engineering, quality control, and manufacturing teams, we achieve the lowest possible product-return rate.

 

This is guaranteed by:

  • Excellent tooling design, assembly processes, and quality control all carried out in-house by experienced teams.
  • Experience working with a wide variety of metal, glass, and plastic materials.
  • Strong emphasis on customer support to identify critical aspects of projects.