Infrared Windows

Among other materials for Hyperion Optics showing good transmission in 2-15 µm range. Due to high refractive index Ge lenses became very useful components of IR imaging systems operating in both “atmosphere windows”: 3-5 and 8-12 microns.





Both monocrystalline and polycrystalline Ge may be used for manufacturing of optical components. We produce Germanium lenses and IR Windows for infrared thermal imaging applications and pyrometry (see our webpage Germanium windows and lenses for thermography). Also such components for spectroscopy as ATR prisms,detector windows, and IR Polarizers are available.



Ge is also good electromagnetic interference (EMI) shielding material. Its special grade called EMI for its ability to shield against electromagnetic interference has become increasingly important for modern military applications where other signals (within millimeter and centimeter range) can be strong enough to make nearby IR systems ineffective. Typical resistance for EMI grade Germanium is about 4 Ohm x cm but it depends on required level of spurious signal suppression. Using Ge window with such resistance these signals are effectively shorted out and the IR system shows good performance.



If you are looking for a reliable optical assembly manufacturing company, please choose us, and we will be your best partner.



Hyperion's manufacturing capabilities span across the spectrum. From UV, VIS, to IR, we fabricate custom optical components that meet unique and specialized application requirements. Our quick turnaround is a compelling advantage for Low Rate Initial Production (LRIP) projects.

Germanium Window

Uncoated Germanium Window Transmission Wavelength VS AR-Coated Ge Plano Window Transmission Wavelength



In the range of 2-12 μm, germanium is the most commonly used material for the production of spherical lenses and windows for high-efficiency infrared imaging systems. Germanium has a high refractive index (about 4.0 through 2-14μm band), usually does not need to be modified due to its low chromatic aberration in low-power imaging systems.



Hyperion Optics utilizes precision double polishers to produce Germanium windows at competitive pricing. We strictly control every critical parameter at different processing stages, such as surface accuracy and every physical dimension, to meet the tolerance requirements. We provide special power-controlled windows, i.e., one surface with low power, while polishing the other side with a high-power ring. Please talk to one of our technicians for further information.



Comparison of Germanium Windows Grades

Germanium Windows COMMERCIAL GRADE FACTORY STANDARD PRECISION GRADE

Diameter Tolerance(mm) +0/-0.05 +0/-0.03 +0/-0.025

Center Thickness(mm) ±0.01 ±0.03 ±0.025

Parallelism (Arc min) 6 <3 <1

Cosmetic(MIL-C-13830A) 100-80 40-20 20-10

Figure Tolerance inλ(Pow/irreg) 5 - 2 2 - 1 1 - 1/4

Coating (T% avg) 96% @ 3-5um/7-14um. 95% @ 4-12um

Materials Optical Grade Germanium

Aside of conventional Germanium window products, Hyp Design Optics provides Ultra-thin germanium uncoated substrates for coating application. Upon custom requirement, we are able to fulfill as thin as 0.20-0.31 mm in center thickness, diameter as small as 3-5mm. Outer diameter special treatment is also available upon request, with extreme precise control of beveling<0.1mm for each face. Our Ultra-thin products are measured 100% individually to secure quality. Check our Ultra-thin category inventory list to match your potential demand.

Ge Ultra-thin Windows Diameter Tol (mm) Center Thickness(mm) Power (Lambda) Cosmetic Bevel(mm) Chips(mm)

Dia 6 mm +0/-0.05 0.31±0.02 <1 L 40/20 <0.15 <0.10

Dia 8 mm +0/-0.05 0.49±0.02 <1 L 40/20 <0.10 <0.10

Dia 9.5 mm +0/-0.05 0.49±0.02 <1 L 40/20 <0.15 <0.10

Dia 11 mm +0/-0.05 1.00±0.02 <1 L 40/20 <0.10 <0.10

Dia 12 mm +0/-0.05 0.31±0.02 <1 L 40/20 <0.15 <0.10

Dia 12 mm +0/-0.05 0.20±0.02 <1 L 40/20 <0.10 <0.10

Dia 12 mm +0/-0.05 0.29±0.02 <1 L 40/20 <0.20 <0.10

Dia 15 mm +0/-0.05 1.00±0.02 <1 L 40/20 <0.20 <0.10

Dia 15 mm +0/-0.05 0.49±0.02 <1 L 40/20 <0.20 <0.10

Dia 18 mm +0/-0.05 0.31±0.02 <1 L 40/20 <0.15 <0.10

Dia 21 mm +0/-0.05 1.00±0.03 <1 L 40/20 <0.20 <0.10



We can also offer kinds of camera lens for sale, anything you need, please contact us.

Borosilicate Windows

Borosilicate Windows are ideal for high temperature and harsh environment applications. With its excellent shock and thermal resistance property, borosilicate window products can maintain flatness in different environmental conditions.





Unlike common borosilicate that is drawn flat, is produced by a float technique that yields superior surface flatness — typically 4 - 6λ per inch. For more information per material property, please refer to Schott official brochure.



Hyperion Optics orders directly from Schott, offer two grades of custom borosilicate or equivalent windows, float grade which are cut from standard float sheet material and polished grade which are further intensively polished for better flatness and surface quality according to application requirement. We have been providing our standard and custom optical window for filter, first surface mirrors, protection windows utility.



Please check our precision grade and thickness available.



Standard Thickness

CT (mm) Tol (mm) CT (mm) Tol (mm)

0.70 ± 0.05 8.00 ± 0.30

1.10 ± 0.05 9.00 ± 0.30

1.75 ± 0.05 11.00 ± 0.30

2.00 ± 0.05 13.00 ± 0.30

2.25 ± 0.10 15.00 ± 0.50

2.75 ± 0.10 16.00 ± 0.50

3.30 ± 0.20 18.00 ± 0.50

3.80 ± 0.20 19.00 ± 0.50

5.00 ± 0.20 20.00 ± 0.70

5.50 ± 0.20 21.00 ± 0.70

6.50 ± 0.20 25.40 ± 1.00

7.50 ± 0.30



Polished Borosilicate Windows COMMERCIAL GRADE FACTORY STANDARD PRECISION GRADE

Diameter Tolerance(mm) ±0.05 ±0.03 ±0.0125

Center Thickness(mm) ±0.01 ±0.03 ±0.025

Parallelism (Arc min) 6 <3 <1

Cosmetic(MIL-C-13830A) 100-80 40-20 10-5

Figure Tolerance inλ(Pow/irreg) 3 - 1 2 - 1/4 1 - 1/10

Coating (T% avg) 96-98% 99% 99.5%

Materials Borosilicate Glass



As an optical design manufacturing company, we will do our best to meet all the needs of customers.

Windows

High Precision Windows, VIS Windows, IR Windows





Hyperion Optics supply a range of custom precision grade windows, elliptical windows to seal optical enclosures especially suited to small power laser applications. Windows can be provided uncoated, or AR coated on single or both faces, or to your custom wavelength requirement. Our custom windows can also be coated with beamsplitter and mirror coatings to meet your bespoke customer needs.



Our precision optical windows range from UV to VIS, NIR, SWIR further MWIR and LWIR applications. We offer a variety of substrates, such as Germanium (Ge), Silicon (Si), N-BK7, UV Fused Silica, Zinc Selenide (ZnSe), or Multiple anti-reflection coating options are available for the Ultraviolet (UV), Visible, or Infrared (IR). Please also refer to our IR optics category for more information.



We are confident to provide our valued customer the best cost-effective offer which can improve your instrumentation and supply chain experience.



Borosilicate Windows

Infrared Windows

ZnSe ZnS window

Light Guides

Quartz Fused Silica Windows

Germanium Window

Brief Introduction of Optical Window

The Imaging Features of Windows

Application of Windows



As an optical assembly manufacturing company, we will do our best to meet all the needs of customers.

Bandpass Filter

 Band pass filter can separate a band of monochromatic light, the ideal transmittance of band-pass filter through the bandwidth is 100%, while the actual band-pass filter pass band is not the ideal square. The actual band-pass filter generally has a center wavelength λ0, a transmittance T0, a half width of the pass band (FWHM, a distance between two positions where the transmittance in the pass band is half the peak transmittance), the cutoff range and other key parameters to describe.

 

Uv bandpass filter is divided into narrow-band filter and broadband filter.

 

In general, a very narrow bandwidth or high cut-off steepness will make the product more difficult to process; meanwhile the pass band transmittance and cut-off depth is also a contradictory indicator

 

Hyperion optical bandpass filter are composed of a stack of equally spaced dielectric layers. The number of layers and thicknesses are calculated with excellent cut-off depth (typically up to OD5 or higher), better steepness and a high transmittance (70% narrowband, 90% broadband).

 

Applications:

 

1. Fluorescence microscopy

 

2. Raman fluorescence detection

 

3. Blood component testing

 

4. Food or fruit sugar detection

 

5. Water quality analysis

 

6. Laser interferometer

 

7. Robot welding

 

8. Astronomical telescope observation celestial nebula

 

9. Laser ranging and so on

 

For more information about optical design manufacturing and  bandpass filter design, please feel free to contact us!

 

We can also provide kinds of optical materials for sale, if you are interested, please contact us.

 

 

 

Optical Dome

 Glass domes are widely used for commercial applications which require protective boundary between different environments; domes perform as windows, providing protection to electronic sensors or detectors without sacrificing field of view.

 

Composed of two parallel optical surfaces, domes have no optical effect on design optical path. In lead element in an optical system, a dome is exposed to the environment, N-BK7 is good choice for visible to near infrared lead applications, which will withstand wind and rain erosion. Typically in single-use defense applications and ocean exploration. Shapes can vary from hemispheric to custom size with coatings.

 

At Hyperion Optics, we have strict control of wall thickness variation spec by utilizing most reliable deterministic CNC machine tools, we grind and polish optical glass, fused silica and zinc sulfide for applications range from visible to infrared.

 

N-BK7 and H-K9L domes: N-BK7 domes are available directly from stock, and are used primarily in meteorology applications. BK7 offers excellent transmission from 300nm up to 2µm. BK7 is a relatively hard material, with excellent bk7 glass transmission durability. Our custom BK7 domes are practically free from bubbles and inclusions, making them perfect for high performance visible applications.

 

UV fused silica domes: For applications operating in the deeper UV range, we offer a range of UV fused silica optical domes. Fused silica domes are commonly used in underwater applications at extremely high pressures. Our Corning 7890 2G and Spectrosil 2000 fused silica both offer over 85% transmission at wavelengths as low as 185nm.

 

Zinc Sulfide domes: For infrared applications we can provide sapphire domes. Sapphire is an extremely hard material with transmission of over 80% in the 2-5µm wavelength range. As with fused silica, sapphire is able to withstand extreme pressures, making it the perfect material for underwater camera and infrared-guided missile applications.

 

Factory Standard – Contact us for manufacturing limit or custom specifications

 

Material: BK7 and more

Diameter: 20～300mm

Wall Thickness>1mm（Diameter20）

Surface accuracy: 3lambda

Dimensional Tolerance: +/-0.1mm

scratch & dig: 60/40

C-A:145+0/-0.05mm

Radius:R1=76mm，R2=80mmDome shall provide angular transmissions >=93%, between incident angles of ±25 degrees

 

There are many glass dome manufacturers, but we are one of the best choices for you.

 

For more information about optical design manufacturing and optical materials, please feel free to contact us!

 

 

Dome

 Hemispherical domes

Dome

Sapphire Dome, Ge Dome, ZnS Dome, ZnSe Dome, glass dome, hemisphere dome

 

At Hyperion Optics, we have strict control of wall thickness variation spec by utilizing most reliable deterministic CNC machine tools, we grind and polish optical glass, fused silica and zinc sulfide for applications range from visible to infrared.

 

Optical dome are widely used for commercial applications which require protective boundary between different environments; domes perform as windows, providing protection to electronic sensors or detectors without sacrificing field of view.

 

Composed of two parallel optical surfaces, Optical Glass Dome have no optical effect on design optical path. In lead element in an optical system, a hemispherical domes is exposed to the environment, N-BK7 is good choice for visible to near infrared lead applications, which will withstand wind and rain erosion.

 

Typically in single-use defense applications and ocean exploration. Shapes can vary from hemispheric to custom size with coatings.

 

For more information about optical design manufacturing and optical materials, please feel free to contact us!