Hyperion Optics
ENGLISH
Menu
What are you looking for?

Zinc Sulfide Lenses

  • Introduction

With the rapid development of military weaponry and correlative targeting and monitoring systems, ZnS is widely utilized in multi-spectral IR applications. Its relatively high transmittance through 3-5µm and 8-10µm enable ZnS being an ideal choice for multi-spectral applications. Further, within NIR and SWIR range, CLEARTRAN CVD ZnS can also be considered as indispensable alternative for optical designers.


CLEARTRAN ZnS


Hyperion Optics uses CLEARTRAN ZnS multi-spectral material from ROHM&HAAS, typical material arrival lead time is 2 weeks. CLEARTRAN ZnS is modified by post-deposition hot isostatic process from CVD Zinc Sulfide, which contributes to transmittance from visible till far infrared ranges (0.35 to 14µm). Therefore, ZnS has become an imperative choice for IR lenses, laser windows and thermal imaging applications.


Hyperion Optics’ ZnS lenses are especially suitable for systems that involve visible camera, mid-wave and long-wave detectors, and further laser rangefinders to designate targets. Our CLEARTRAN ZnS windows also can be used for external windows for particular sensor applications.


ZnS is comparatively soft cubic crystal in manufacturing, meaning it is easily to leave scratches in grinding and polishing processes, which lead to a complicated quality control of both cosmetic and surface accuracy. Hyperion Optics invested heavily in ZnS component manufacturing capability improvement, enables our engineers master the optimal processing techniques in return helps Hyperion Optics to meet customers’ expectation without compromise. ZnS aspheric lenses are also available for your application; please refer toIR Aspheric Lenses for more information. ZnS Dome optics is also available in our Domecategory.


Our ZnS lenses are also available with AR coating according to specific requirement. Please take great care when handling, mounting and cleaning ZnS lenses, further, For your safety, please follow all proper precautions, including wearing gloves when handling these lenses and thoroughly washing your hands afterward.


Find out what we can help you with ZnS components today, we will be more than happy to evaluate your part and provide our professional suggestions from production perspective.



ZnS (CLEARTRAN) Refractive Index vs. Wavelength

Wavelength (µm)

Index

Wavelength (µm)

Index

Wavelength (µm)

Index

Wavelength (µm)

Index

0.4047

2.54515

0.6678

2.34033

1.5296

2.27191

9.000

2.21290

0.4358

2.48918

0.7065

2.33073

2.0581

2.26442

10.000

2.20084

0.4678

2.44915

0.7800

2.31669

3.000

2.25772

11.250

2.18317

0.4800

2.43691

0.7948

2.31438

3.500

2.25498

12.000

2.17101

0.5086

2.41279

0.8521

2.30659

4.000

2.25231

13.000

2.15252

0.5461

2.38838

0.8943

2.30183

4.500

2.24955



0.5876

2.36789

1.0140

2.29165

5.000

2.24661



0.6438

2.34731

1.1287

2.28485

8.000

2.22334




Zinc Sulfide

COMMERCIAL GRADE

FACTORY STANDARD

PRECISION GRADE

Diameter Tolerance(mm)

+0/-0.20

+0/-0.10

+0/-0.025

Center Thickness(mm)

±0.20

±0.15

±0.025

Radius (%)

±2%

±1.5%

±1%

Focal Length Tolerance (%)

<3%

<1.0%

<1.0%

Cosmetic(MIL-C-13830A)

80-50

60-40

40-20

Figure Tolerance in λ(Pow/irreg)

5 - 2

2 - 1/2

1 - 1/4

Centration (Arc min)

5'

3'

1'

Dia. To Thick Ratio

9~50:1

Coating (R% avg)

<2.0%@ VIS-SWIR , <1.5% @ 3~5µm or 8~12µm

Materials

CVD Zinc Sulfide and CLEARTRAN CVD ZnS



Related Content
  • Parabolic Mirrors

    Parabolic Mirrors

    March 14, 2017Parabolic reflectors are used to collect energy from a distant source (for example sound waves or incoming star light). Since the principles of reflection are reversible, parabolic reflectors can also...view
  • YAG Crystal

    YAG Crystal

    March 14, 2017Undoped YAG Crystal is an excellent material for UV-IR optical windows, particularly for high temperature and high energy density applications. The mechanical and chemical stability is comparable to s...view
  • Roof Prism Amici Prism

    Roof Prism Amici Prism

    February 17, 2017A roof prism is a reflective optical prism containing a section where two faces meet at a 90° angle. Reflection from the two 90° faces returns an image that is flipped laterally across the axis wher...view

Corporate Info

Contact

  • TEL:+86-25-83307137
  • FAX:+86-25-86626312
  • EMAILrfq@hypoptics.com
  • ADDRESS:DanYang Industrial Zone Danjie Road #100, Danyang,China
    BaoXiang Road#6, Nanjing,China