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Celebrating successful 40 years in business – Light Solutions for Life

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“Monozukuri” – Sigma Koki Group is your global supplier of quality solutions for use in applications from R&D to production equipment, willing to respond to customer’s patronage through constant efforts with “Appreciation, Challenge and Creation”.


The parent company was founded in 1977 in Japan, putting nearly 40 year’s experiences in manufacturing optical component and opto-mechanical component to scientific research and photonic industry at your service. Our presence is strong in Europe, Asia and in the USA with 8 out of 10 researchers know about OptoSigma brand of SIGMAKOKI Group.



SigmaKoki and OptoSigma would like to express sincere gratitude and appreciation for your patronage over the years, and thank customers for your loyalty and support making these past 40 years in business so successful.

OptoSigma Europe was established in early 2014 in the heart of Europe (France) to provide support to our distributors and get closer to the European customers. Our structure in France is sales support and manage the European logistic center.



OPTOSIGMA EUROPE – Your First Source for Optics and Hardware. The goal at OptoSigma is simple – working to build a long-standing partnership with customers by earning trust and confidence as your Optical component; Thin Film Coatings, Opto-Mechanics, Manual and Motorized positioning supplier of choice … continuously working to bring the best products, with the best selection from stock, at the best prices, all together with the best service available. Everyone at OptoSigma is committed to your satisfaction.



The daily standard optics and opto-mechanics can be shipped to you in 24 hours. For new users, we would like to reassure you that all our opto-mechanics are available in Metric and Inch size and they are compatible with the standard product from other makers. If you need a drawing to evaluate the compatibility, please visit our web site and select your product and download a DXF or 3D drawing from our web site.



For your daily optics and opto-mechanics needs, you can order on OSE online catalog or ask for your paper catalogue by sending us your request by email to a.sales@optosigma-europe.com, guaranteeing that you will get an answer in less than 24 hours.



Today 50% of the sales are customs optics and customs opto-mechanics. We have 6 factories and design center in the world, our capabilities in offering you any of your most challenging inquiries in optics and in opto-mechanics without breaking the bank. The reason of this large customization capability and flexibility is because OptoSigma was founded to manufacture the photonics components on demand from the scientific and researchers. We have this in our DNA and we continue to do it.



  • Adhesives
  • Attenuators
  • Autocollimators
  • Beam Delivery Systems
  • Beam Profilers
  • Beam Shapers and Expanders
  • Beam Splitters /Re-combiners
  • CCD devices
  • Ceramics
  • Cleaning equipment
  • Cleanroom equipment
  • Coatings and Thin Films
  • Collimators
  • Diffractive Optics
  • Filters
  • Gas lasers
  • Glasses
  • Gratings
  • High-speed Cameras
  • Image processing
  • Interferometers
  • IR optics
  • Lamps
  • Laser Crystals
  • Laser safety equipment
  • LEDs
  • Lenses
  • Light-sensitive materials
  • Micro-optics
  • Microscopy
  • Mirrors
  • Mounts and Positioning equipment
  • MTF measurement
  • Nonlinear Optical Materials
  • Nonlinear Optics
  • Optical design services
  • Optical waveguides, couplers
  • Polarizers
  • Polishing and grinding
  • Shutters
  • UV Optics
  • Wave plates
  • Windows and Prisms