Premium Sapphire Round Filter for Crystal Clear Vision

• Customization: Available
• Certification: CE, ISO, BV
• Application: Rubber, Plastic, Chemical, Construction, Metallurgy, Ceramic, Casting, Glass, Astronomy, Medicine, Biology, Communication, Milit
• Model NO.: RAYTEK-OG-0013#
• Type: Optical Sapphire
• Substrate: Optical Sapphire
• Uniaxial Negative: Uniaxial Negative;No = 1.768 Ne = 1.760
• DN/Dt (0.6um): 13*10(-6)/Celsuis Degree (Visible Range)
• Spectral Emittance: 0.1 (1600 Celsuis Degree)
• Spectral Absorption Coefficient: 0.1 to 0.2 Cm(-1) (0.66 Micron,1600celsuis)
• Transport Package: Wood Case
• Specification: D2000mm*(H)300mm
• Trademark: Raytek
• Origin: Germany
• HS Code: 2811229000
• Production Capacity: 100000kg Per Year
• Package Size: 50.00cm * 50.00cm * 50.00cm
• Package Gross Weight: 8.000kg

Product Description

                                                                               Optical Sapphire Glass Custom Round Sapphire Glass Window for Optical Filters

We can custom-made all kinds of type optical glass lens ,prisms ,glass filter ,optical window plate and optical reflective mirror according to your request~

Sapphire window panels are mainly used as high-end optical components and are widely used in optical fields that require high hardness, high transparency, high temperature resistance, and corrosion resistance. Specifically, the role of sapphire window panels is reflected in the following aspects:

1.Protecting sensors and detectors: Sapphire window plates are commonly used as protective windows for sensors and detectors. Due to their high hardness, they can resist scratches, maintain transparency and clarity for a long time, and ensure the accuracy and stability of sensors and detectors.

2. Transmitting light with a wide wavelength range: Sapphire window plates have a wide transmission range from ultraviolet to mid infrared, suitable for various optical applications. For example, it can be used in infrared detection devices such as infrared thermal imagers and infrared point thermometers to achieve high-definition imaging and temperature measurement of targets.

3 .High temperature and corrosion resistance: Sapphire window panels can be used in high temperature and corrosive environments, withstand temperatures up to 1000ºC or higher, and are insoluble in water, common acids or bases. This gives it unique advantages in industrial, defense, and scientific research fields, especially in optical applications that require high temperature resistance and corrosion resistance.

4 .Provide a safe observation window: In hazardous areas such as electrical cabinets and high-temperature equipment, sapphire window panels can be used as observation windows to avoid harm to users caused by harsh environments such as electromagnetic radiation, high voltage, and high temperature.

At the same time, they facilitate internal inspection and preventive maintenance.

5.Suitable for applications with strict requirements such as laser systems: Due to its extremely high surface hardness, high thermal conductivity, high dielectric constant, and resistance to chemical acids and bases, sapphire window plates are very suitable for applications with strict requirements for optical components such as laser systems.

In summary, sapphire window plates play an important role in multiple fields due to their excellent physical and chemical properties, and are one of the indispensable opticald components in the high-end optical field.

General Introduction:
Good Sapphire, as one of the hardest, most durable and scratch resistant materials, offers a broad transmission range from UV to mid infrared wavelengths (250 - 5000 nm). The material is able to withstand extreme environmental conditions and temperature changes.  Raytek offers sapphire materials, Raytek offers the machining process in different supply forms, dimensions, and in customized processing stages.

Products Name: Optical Sapphire
Alias: Optical Sapphire, Optical apphire windows, Optical Sapphire materials, Sapphire optical materials, etc

Main Characteristics:
1).Extreme hardness & high mechanical strength (withstands extreme environmental conditions)
2).Excellent thermal conductivity/heat resistance
3).High transmittance (UV to IR)
4).Low dn/dT
5).High electrical resistance (1014 Ohm x cm)
6).High dielectric constant (9.39 from 1.0 MHz to 8.5 GHz)

Thermal Properties:

Items	Value
Thermal conductivity (60° to c-axis) at 25 °C	27.21 W/ (m x K)
Linear thermal expansion coefficient (60° to c-axis) α(25 °C; 800 °C)	8.4 10- 6 / K
Specific heat at 25 °C	774.4 J / kg x K
Heat capacity at 25 °C	77.87 J / K x mol

Mechanical Properties:

Items	Value	Value
Tensile strength	40,000 - 60,000 psi (design criterion)	0.27 - 0.41 GPa
Flexural strength	70,000 -130,000 psi (design criterion)	0.48 - 0.89 GPa
Young's Modulus, E (25 °C) (Modulus of Elasticity)	50 x 106 psi	345 GPa
Compressive Modulus, K	55 x 106 psi	379 GPa
Flexural Modulus (Modulus of Rupture)	52 x 106 psi	358 GPa
Shear Modulus, G (Modulus of Rigidity)	21.5 x 106 psi	148 GPa
Bulk Modulus, k (Volumetric Modulus of Elasticity) Poisson's Ratio	35 x 106 psi 0.29	241 GPa

Optical Properties:

Items	Value
Uniaxial Negative	no = 1.768 ne = 1.760
Birefringence	0.008
dn/dt (0.6 µm)	13 x 10-6/°C (visible range)
Spectral Emittance	0.1 (1600 °C)
Spectral Absorption Coefficient	0.1 to 0.2 cm-1 (0.66 micron,  1600 °C)
Electrical Volume Resistivity	1016 Ohm x cm (25 °C) 1011 Ohm x cm (500 °C) 106  Ohm x cm (1000 °C)
Dielectric Strength	480,000 volts/cm (1,200 volts/mil)
Dielectric Constant	11.5 (103 to 109 Hz, 25 °C) parallel to c-axis 9.3 (103 to 109 Hz, 25 °C) perpendicular to c-axis
Loss Tangent	8.6 x 10-5 (@1010 Hz, 25 °C) parallel to c-axis 3.0 x 10-5 (@1010 Hz, 25 °C) perpendicular to c-axis
Magnetic Susceptibility	- 0.21 x 10-6 parallel to c-axis - 0.25 x 10-6 perpendicular to c-axis

Main Applying Fields:

Applying Fields:	1).Infrared applications (e. g. radiometry, guidance, gas analysis, medicine, safety and security) 2).High-pressure and shock-loading applications(e. g. chamber or heater windows in chemical process equipment) 3).Optical applications (e. g. optical components from UV to IR) 4).Scratchproof sapphire watch glasses
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Matching Custom Manufacturing Serivce:
Including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.
Matching processing equipments;
1).Single side lapping and polishing machines
2).Duble sided polishing machines
3).Ring throwing machines
4).DMG five-axis five-linkage spherical milling machine
5).DMG ultrasonic machining center
6).Super large scale gantry cnc machining center (2.0*2.0m)
7).Super large scale surface grinder (1.6m*1.6m)
8).CNC cutting machines
9).Thin plate cleaning machines
10).Ultrasonic trough cleaning machines
11).Plane interferometers
12).Two dimensional detectors
13).Ion beam polishing machines
14).Magnetorheological polishing equipments

Main Export Countries & Areas: 
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.

Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;

Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with "3R" policy--return, replace & refund policy.
For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.