Infrared Optics · Precision Machining · Custom Sealing

We make cameras see heat.

A 20-year precision optics factory with a dedicated international team. Lens, housing and seal — one sealed assembly, certified to IP68.

BAND: LWIR · MWIR · SWIR OPERATING: −60°C, EVERY UNIT NETD: ≤ 40–50 mK SEAL: IP68 ORIGIN: HANGZHOU, CN
01 / Who We Are

A national-programme factory, now open to the world.

For two decades our main customers were China's national research institutes and government procurement — buyers who check every number.

Put simply: we make the lenses, metal housings and seals that let cameras see heat — in the dark, through fog and smoke, from desert heat to Arctic cold.

We build the optical front-end; our customers add the detector, electronics and software. We're now also enabled to build lens, sensor, imaging electronics and augmentation together as a finished unit.

A serious factory and a real export team, under one roof.

You talk to people who speak your language and understand your timeline — backed by a plant that has supplied demanding national programmes for 20 years.

20+
Years in continuous production
3
IR bands covered — LWIR / MWIR / SWIR
±0.01mm
CNC tolerance, single-piece construction
IP68
Sealed assembly, factory-certified
02 / Our Factory

Built for precision. Run on Western-class equipment.

Infrared optics are unforgiving — expensive materials, aspheric diamond-turned surfaces, exact coatings. We run the same class of equipment as leading European, US and Japanese makers.
01

AMETEK Precitech Nanoform® Lathes

Single-point diamond turning of aspheric and diffractive infrared surfaces — the same machines used by top Western optics houses. This is what holds shape and repeatability lens after lens.

02

CVAC Vacuum Coating Systems

All infrared coatings deposited in-house — AR, protective and custom spectral coatings controlled end to end, keeping lead times short.

03

Full Optical Metrology

MTF curves, EFL statistics and environmental test data produced as standard for every product line — not on request.

04

Precision CNC Machining

Metal parts to ±0.01 mm tolerance, single-piece integrated construction, much of it hand-finished.

05

In-House Rubber Plant

From industrial seals up to medical- and food-grade silicone — all under our own roof, so optics, metal and rubber ship as one certified, sealed assembly.

03 / Why We Works In Your Favour

Nord & Co foreign-trade capital, on your side of the table.

Nord & Co is based in Sweden, a country with many years of expertise in lenses and housing — that turns into real, practical advantages for you.
A

One Team, Start to Finish

You deal with us directly. We handle the commercial side, documentation and logistics, with the full factory behind us — no layers, no middlemen marking up the price.

B

Fast, Fluent Communication

An English-speaking international team that answers quickly and understands how overseas buyers actually work.

C

Logistics on the Doorstep

We sit beside the Yangtze River Delta and the ports of Shanghai and Ningbo — two of the busiest in the world. Shipping is quick and well-priced.

D

Direct-Factory Pricing

Our LWIR germanium lenses match Ophir on specification at roughly 20% below OEM pricing, with shorter lead times.

04 / What The Product Is

One optics platform. Three infrared bands.

Infrared optics focus heat instead of visible light, so a camera can form a clear image in total darkness, see through smoke and fog, and read temperature differences the eye cannot.

LWIR — The Workhorse

Night vision, perimeter security, firefighting, marine and automotive. Best fog and smoke penetration of the three bands — the default choice for most thermal-imaging systems.

Best suited toNight vision · security · marine · automotive
Key strengthFog & smoke penetration
Material optionsGermanium · Chalcogenide glass

MWIR — High Sensitivity

High sensitivity and long-range detection for specialist systems — where reach and detail matter more than raw fog penetration.

Best suited toLong-range & specialist detection systems
Key strengthSensitivity, detection range
Material optionsGermanium · Silicon · ZnSe · ZnS

SWIR — Sees Through Silicon

Sees through silicon and many plastics — built for wafer inspection, fill-level checking and material sorting rather than open-air surveillance.

Best suited toWafer inspection · fill-level · material sorting
Key strengthTransmits through silicon & plastics
Material optionsSilicon · ZnSe · ZnS · Sapphire
Focal length
Fixed 4 mm – 300 mm · continuous zoom up to 10×
Aperture (F#)
F0.9 – F1.2 — fast optics for low-light sensitivity
Detector formats
256×192 / 384×288 / 640×512 / 1280×1024 · 12 µm & 17 µm pixel pitch
Thermal sensitivity (NETD)
≤ 40–50 mK
Athermalization
Passive — stays in focus across temperature swings, no manual refocus
Operating temperature
Factory-tested to −60 °C, every unit
Documentation
Full MTF curves, EFL statistics, environmental test data as standard

Everything above is build-to-order.

05 / What We Can Customize

Almost nothing is fixed.

This is usually the most useful part for matching us to a project.
Core options
  • Germanium (Ge) — premium LWIR/MWIR standard, top image quality
  • Chalcogenide glass — cost-effective germanium alternative, great for volume
Broadband & extreme-environment
  • Silicon, ZnSe, ZnS, sapphire — for MWIR/SWIR, broadband, and extreme-environment windows
Protection & field conditions
  • DLC (Diamond-Like Carbon) — hard outer protection against sand, rain, salt and abrasion
  • Hydrophobic / anti-fog and custom spectral coatings for field conditions and specific detector/filter needs
Coating combinations
  • Ge: DLC+AR · HD+AR · AR+AR (max transmission, indoor/protected use)
  • Chalcogenide: HC+AR (factory self-designed hard carbon) · AR+AR
Materials & build
  • Materials: pure titanium, aviation-grade aluminum, stainless steel, salt-fog-resistant finishes
  • Build: one-piece construction, ±0.01 mm tolerance, custom to drawing, much of it hand-polished
Forms
  • Lens barrels · gimbal/PTZ parts · drone payload frames
  • Handheld shells · sensor bases
Grades
  • Industrial · marine (EPDM, salt-water & UV resistant)
  • Food-grade and medical-grade silicone
Techniques
  • Precision O-rings and gaskets · over-molding
  • Anti-slip grips · vibration dampers
06 / Where It Is Used

One optics-plus-enclosure platform. Many industries.

Defence, marine, security, industrial, medical and agricultural markets all run on the same core technology.

Defence & EO/IR Systems

Sighting, surveillance, targeting and reconnaissance optics for integrators.

Our edgeSpec-matched germanium LWIR, full MTF/environmental data

Marine & Naval

Vessel night navigation, obstacle avoidance, search-and-rescue.

Our edgeSalt-fog-proof titanium/stainless housings, passive athermalization

Security & Borders

Perimeter towers, long-range surveillance, edge terminals.

Our edgeSuper-telephoto optics, IP68 weatherproofing

Industrial Maintenance

Grid inspection, data-center cooling, early fire warning.

Our edgeHigh-NETD optics, rugged enclosures

Semiconductor & Vision

Wafer-defect, fill-level, material sorting (SWIR).

Our edgeSWIR optics, micron-precision mounts

Automotive & ADAS

Fog/snow driving aids, pedestrian and animal detection.

Our edgeLightweight molded barrels, sealed housings

Forestry & Environment

Fire-detection towers, UAV patrol payloads.

Our edge≤40 mK sensitivity, −60 °C tested

Medical & Life Sciences

Non-contact screening, vascular & endoscopic optics.

Our edgeISO 13485-grade parts, autoclave-safe rubber
07 / Quality & Documentation

Documentation is second nature here.

Twenty years of supplying national research institutes and government programmes has made documentation second nature.

With every order you get the data an engineer needs to qualify the part — full MTF curves, EFL statistics, and environmental test results across temperature, humidity and vibration.

Need data for a specific focal length or test condition? We send it straightaway.

MTF curvesIncluded / standard
EFL statisticsIncluded / standard
Environmental test dataTemp · humidity · vibration
Cold-chamber test−60 °C, every unit
Custom test conditionsOn request
ComplianceExport-control & trade compliance as applicable
Talk To Us

Tell us your specification.
We'll arrange a sample lens for evaluation.

Focal length, band, detector format, environment — send what you have and our team will come back with fit, pricing and lead time.

Products are offered for civilian and commercial applications. Specifications are typical and may be tailored per project. Cross-border supply is handled in line with applicable export-control and trade-compliance requirements; end-use / end-user documentation can be provided on request.