Product Announcements:
Optical Windows

Sapphire is transparent from 170nm to 5.3um. possessing high strength, hardness and chemical stability, it is excellent material for severs environments. Being five times stronger than glass and heat resistant up to 2000°C, sapphire is often employed as pressure windows. Read more...

Windows are applied to isolate different physical environments while allowing light to pass through.When selecting windows,it’s impossible to consider materials, transmission, scattering, wavefront distortion, parallelism and resistance to certain environment. Dayoptics offer all kinds of windows,which are made from different materials.Windows of special sizes and materials are ava... Read more...

Effective aperture (%): 90.00 diameter (mm): 40.00

Dimensional tolerance (mm): +0.0/-0.1 thickness (mm): +4.00

Coating: BBAR (3000-5000 nm) Coating Specification: Ravg < 3% @ 3-5 micron

Parallelism (arc points): <1 Poisson's ratio: 0.28

Base: Germanium (Ge) surface smoothness: lambda/10@ 10.6 um

Surface quality: 60-40 Read more...

Our stock and custom Domes are available for a range of underwater Remotely Operated Underwater Vehicles (ROVs), Pyranometers and high-pressure Viewport applications, and are commonly specified for high-end imaging applications due to their excellent Transmitted Wavefront Error (TWE) benefits. Read more...

CaF2 is transparent in the ultraviolet to infrared (180 nm - 8.0 m) wavelength range. It has a refractive index of 1.428 at 1.064 m and high mechanical and environmental stability. CaF2 is very suitable for applications requiring low damage threshold, low fluorescence and high uniformity. It is often used in Excimer lasers, spectrometers and cooling and thermal imaging. Read more...

Germanium window(coating DLC/BBAR)

Effective aperture (%): 90.00 dimensional tolerance (mm): +0.0/-0.1

Thermal expansion coefficient CTE (10-6/C): 6.1 density (g/cm3): 5.33

Refractive index nd: 4.002 @ 11 m Knoop hardness (kg/mm2): 780.00

Parallelism (arc points): <1 Poisson's ratio: 0.28

Base: Germanium (Ge) Surface Quality: 60-40

Thick... Read more...

Coating we can do:

1.antireflective coatings in 3-5 micron

2.antireflective coatings in 3-12 micron

3.antireflective coatings in 8-12 micron band are suitable for thermal imaging applications. Germanium optical materials are also suitable for antireflective coatings (AR) with design wavelengths of 8-12 microns. Read more...

flame detector

Usually the most popluar material should be sapphire and ultraviolet fused silica, and some special security application need coated hard-AR/AR Germanium, optical silicon, and uncoated calcium fluoride window. Read more...

Effective aperture (%): 90 dimensional tolerance (mm): +0.0/-0.1

Thermal expansion coefficient CTE (10-6/C): 7.57 density (g/cm3): 5.27

Refractive index nd: 2.631 Knoolp hardness (kg/mm2): 105

Poisson's ratio: 0.28 substrate: Zinc Selenide (ZnSe) Read more...

• General specification Effective aperture (%): 90 substrate: N-BK7 Surface quality: 60-40 thickness tolerance (mm): +0.20