Custom & OEM
We design, coat and build optics to spec — by market and application — from prototype to serial OEM supply.
- All-in-one Service
- Research & Development
- Manufacturing-as-a-Service
- System Integration
- Testing & Measurement
- Defense & Space
- Laser Manufacturers
- Medical & Life Sciences
- Semiconductor
- Industrial
- Laser Fusion
- Scientific & Research
Shop by Category
Custom Optics by Market
Pick a market and explore our optics manufacturing capabilities.

Engineered for mission-critical defense systems
European photonics excellence for next-generation defense systems. As an EU-based, ITAR-free partner we offer flexible production — from small-batch custom orders to dedicated OEM lines for high-scale defense production.
Explore Defense & Space Applications
Optics & crystals for the laser sources you build
Vertically integrated optics, crystals and electro-optics for OEM laser builds — from first prototype to qualified serial supply, all manufactured and tested in-house.
Explore Laser Manufacturers Applications
Optics for medical lasers and bio-imaging
Crystals, electro-optics and precision optics for medical laser OEMs — ISO 9001 traceability and consistent serial quality from prototype batch to dedicated OEM line.
Explore Medical & Life Sciences ApplicationsOptics for lithography, inspection and processing
High-LIDT UV and DUV optics, harmonic crystals and beam delivery lenses for semiconductor laser tools — low-absorption coatings from 190 nm with full in-house traceability.
Explore Semiconductor Applications
Optics that survive high-power environments
Protective windows, F-theta lenses and high-power mirrors with extreme-LIDT coatings — built for continuous industrial duty, from single replacements to volume OEM supply.
Explore Industrial Applications
Large-aperture, high-damage-threshold optics
Large-aperture conversion crystals, Pockels cells and damage-resistant transport optics for MJ/PW-class beamlines — coatings up to ø1100 mm, LIDT beyond 100 J/cm².
Explore Laser Fusion Applications
Precision optics for labs and institutes
One of the broadest crystal and optics catalogs in photonics, plus fast custom manufacturing — from a single specialty crystal to complete lab infrastructure.
Explore Scientific & Research ApplicationsIn-house Manufacturing Capabilities
Coating, polishing, lens manufacturing, metrology and assembly — owned and operated by us. That vertical integration is what lets us quote custom optics fast and hold quality across serial OEM runs.
Materials we process
From an R&D Project to a Full OEM Program
Define the target — wavelength, coating, damage threshold, tolerances — and we take it from design and prototype to full serial production in-house, scaling the same part from a single R&D piece to OEM volumes.
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1
Specify
Share your target spec, expectation, or just the problem. Speak directly to one of our engineers.
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2
Design & quote
We propose substrate, coating and tolerances with a costed, manufacturable design.
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3
Prototype
In-house cutting, polishing and coating with full interferometric QC and certs.
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Serial OEM supply
Repeatable, traceable production scaled to your volumes and schedule.
Not sure if it's a stock part or a custom build?
Send us your spec — we'll tell you what we have on the shelf and what we'd make for you.

Manufacturer in Vilnius
Eksma Optics is a manufacturer and global supplier of precision optical components, optical systems, laser & nonlinear frequency conversion crystals, opto-mechanics and electro-optical Pockels cells with drivers used in lasers and other optical instruments.
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