Our high quality apertures for medical endoscopes provide excellent edge acuity and accuracy. Opto-Line addresses our customers’ individual needs on a project by project basis. Call us today to learn more (978) 658-7255 or visit us online at opto-line.com.

Typically utilizing our proprietary low-reflecting black chrome, our apertures have become the benchmark for endoscope manufacturers.

Our black chrome is very durable, low-reflecting in visible with Rave <5% , OD > 4.0. Excellent edge acuity and accuracy (± 1μm). We can also deposit other required materials such as high reflective protected aluminum, gold, etc.


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Opto-Line is dedicated to the highest quality custom optical patterns and coatings.

Since 1967, Opto-Line International has built a reputation for excellence, providing companies in the medical, optometry, aerospace, industrial, science and defense sectors with the very best custom precision optical patterns and thin film coatings available.

We’d love to hear from you. Please tell us more about your custom optical pattern needs.

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