ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
ZnS Optical Components | Infrared Windows, Lenses & Custom Fabrication
Price
US $6.56-9.56
Model
FE-GXQZ-0120
MOQ
5 piece

Item specifics

Chemical Name
Zinc Sulfide (ZnS)
Transmission Range
3 μm – 14 μm
Refractive Index (10 μm)
2.25
Density
4.09 g/cm³
Mohs Hardness
3.0
Coating Option
IR Anti-Reflection Coating (single side / double side)
Standard Dimensional Tolerance
±0.02 mm
Surface Quality
Standard optical grade
Working Temperature
-40℃ ~ 80℃ (normal environment)
Applications
Defense & EO/IR Systems,Aerospace Infrared Optics,Laboratory

Review

Description

ZnS Optical Components | IR Windows, Lenses & Custom ZnS Optics Manufacturer

Zinc Sulfide (ZnS) is a classic infrared optical material with outstanding transmittance across mid-wave and long-wave infrared spectra. It features stable physical properties, moderate hardness, good machinability and low thermal distortion. Our factory supplies high-purity ZnS optical blanks, windows, lenses and machined components, supporting single-side / double-side anti-reflection coating and full customization per drawings. Widely deployed in thermal imaging, infrared detection, defense EO/IR systems, industrial monitoring and scientific optical instruments.


Core Advantages 

  • Broad IR transmission range: covers 3 μm ~ 14 μm, ideal for mainstream infrared working bands
  • Good mechanical strength and scratch resistance, suitable for field and harsh working environments
  • Easy precision machining, capable of complex shape processing and tight dimensional tolerance
  • Low absorption rate and stable optical performance under normal temperature
  • Compatible with various infrared anti-reflection coatings to maximize light transmittance
  • Strict raw material screening and full inspection, consistent batch quality

Available Products

  1. ZnS Optical Windows: Round, square, rectangular flat windows; customized aperture & edge treatment
  2. ZnS Lenses: Plano-convex, double-convex, meniscus and custom infrared lenses
  3. ZnS Optical Blanks: Unprocessed raw material blocks for secondary machining
  4. Custom Machined ZnS Parts: Special profiles, grooving, drilling and shaped optical components


Key Technical Specifications

ItemParameter
Chemical NameZinc Sulfide (ZnS)
Transmission Range3 μm – 14 μm
Refractive Index (10 μm)2.25
Density4.09 g/cm³
Mohs Hardness3.0
Coating OptionIR Anti-Reflection Coating (single side / double side)
Standard Dimensional Tolerance±0.02 mm
Surface QualityStandard optical grade
Working Temperature-40℃ ~ 80℃ (normal environment)



Main Applications 

  • Defense & EO/IR Systems
  • Thermal Imaging Cameras & Infrared Detection Equipment
  • Industrial Temperature Monitoring & Non-contact Measurement
  • Aerospace Infrared Optics
  • Laboratory Infrared Spectroscopy Instruments

Custom Service 

We provide one-stop customized service for ZnS optical components:
  • Custom size, thickness, shape and radius according to CAD drawings / samples
  • Professional edge grinding, chamfering and surface finishing
  • Custom infrared coating solutions for different spectral requirements
  • Small batch trial order and mass production are both acceptable

Call to Action 

Get Custom Quote | View More Infrared Optical Components

Related Links 

  • Related Products: ZnSe Optical Components, Infrared Optical Windows
  • Related Articles: [Knowledge Center] ZnS vs ZnSe: Difference & Selection Guide


Product Page Dedicated FAQ

Q1: What is ZnS used for in optics?

A: ZnS is a widely used infrared optical material, mainly manufactured into windows and lenses for thermal imaging, infrared detection, defense optoelectronic systems and industrial temperature measurement devices. It performs stably in the common mid and far infrared bands.

Q2: What is the difference between ZnS and ZnSe?

A: Both are mainstream IR materials. ZnS has lower cost, better mechanical strength and good machinability, fit for conventional infrared equipment. ZnSe has wider transmission range and higher transmittance, more suitable for high-precision infrared lasers and high-end optical systems.

Q3: Can you apply anti-reflection coating on ZnS components?

A: Yes. We offer professional infrared anti-reflection coating on single side or double side, which can effectively improve infrared light transmittance and reduce reflection loss.

Q4: What is your minimum order quantity for custom ZnS optics?

A: We support small batch orders. Standard parts are in stock, and customized products can start from a single piece.

Q5: Is ZnS suitable for outdoor long-term use?

A: ZnS has stable physical properties under normal temperature and dry outdoor environment. For high humidity or severe corrosive conditions, we suggest adding protective coating to extend service life.