Dielectric Film Coating
Your Professional Dielectric Film Coating Supplier
Perfect Optics is a leading technology company dedicated to the research and development of advanced optical equipment and processes, as well as the design and manufacturing of high-precision optical components and systems. We are committed to delivering superior optical solutions to clients across various industries through our unwavering focus on technological excellence and exceptional customer service.
Professional Team
Our team comprises highly skilled and experienced professionals with extensive expertise in the optical field. With decades of collective experience, we have perfected the manufacturing process for optical components, achieving precision at the nanometer level and even sub-nanometer accuracy.
Quality Control
To ensure the highest quality standards, we utilize state-of-the-art measurement instruments such as ZYGO, LUPHOSCAN, coordinate measuring machines, and 4D dynamic interferometers.
Custom Service
We offer customized lenses and optical systems designed to meet specific customer requirements, ensuring tailored solutions that address unique needs.
Advanced Equipment
Our in-house capabilities enable us to develop cutting-edge optical manufacturing equipment, providing an optimal environment for producing efficient and highly precise optical components.
Parameters
|
DC Resistivity (Ω-cm, 25°C) |
> 1020 |
|
Density (g/cm3) |
2.27 |
|
Dielectric Constant |
3.8 - 3.9 |
|
Dielectric Strength (V/cm) |
5 - 10 x 106 |
|
Energy Gap (eV) |
~9 |
|
Etch Rate (BOE, Å/min) |
1000 |
|
Linear Expansion Coefficient (cm/cm ¡C) |
5.0 x 10-7 |
|
Melting Point (°C) |
~1700 |
|
Molecular Weight |
60.08 |
|
Molecules/cm3 |
2.3 x 1022 |
|
Refractive Index |
1.46 |
|
Specific Heat (J/g°C) |
1.0 |
|
Stress in film on Si (dyne/cm2) |
2 - 4 x 109 |
|
Thermal Conductivity (W/cm °C) |
0.014 |
Types of Dielectric Film Coating
The dielectric film coatings provided by our company mainly include the following types:
Reflective Coating
Reflective film is a kind of thin film material widely used in optical field, which can reflect, transmit and absorb light. The main parameters include reflectivity, transmittance and film thickness, which determine the application of reflective film in different fields.
Anti-Reflection Coating
Anti-reflection film is a kind of thin film material with high transmittance and filtration ability, and its main parameters include transmittance, reflectivity, pulverization resistance, durability and chemical stability. Among them, the transmittance is one of the most important parameters of the antireflection film, which determines how much light the object treated by the antireflection film can transmit for observation or imaging.
Highly Reflective Film Coating
Highly reflective film is a kind of thin film material used in optical field, which has the characteristics of high reflectivity. Compared with traditional reflective films, highly reflective films have better performance in optical properties, can make more effective use of light energy, and are widely used in many fields.
Benefits of Dielectric Film Coatings
Increased Light Transmittance
The most direct and observable benefit of these coatings is the enhancement of light transmittance. When light passes through an uncoated glass surface, about 4% is reflected back, reducing the amount of light that successfully transmits through. dielectric film coatings can significantly reduce this light loss, allowing more light to pass through, resulting in brighter and clearer images.
Reduced Glare and Reflections
By minimizing the reflection of light, these coatings drastically cut down glare, a major advantage in optical devices like eyeglasses and camera lenses. This reduction in glare also helps to improve the contrast of the image, making it easier to discern details.
Enhancing Visual Comfort
For eyewear users, dielectric film coatings significantly enhance visual comfort. By reducing the reflections on the front and back surfaces of eyeglass lenses, these coatings can increase the amount of light that reaches the eyes, thereby providing a more comfortable and natural vision.
Aesthetic Appeal
Eyeglasses with anti-reflective coatings look better. The coatings virtually eliminate reflections from the front surface of the eyeglass lenses, making the eyes of the wearer more visible and reducing the intensity of reflections in photographs or during televised appearances. This makes eyeglasses with these coatings more aesthetically pleasing.
Increased Durability and Scratch Resistance
Dielectric film coatings are often combined with other types of coatings that increase the durability and scratch resistance of optical surfaces. This makes devices like cameras and eyeglasses not only more effective in their operation, but also more resistant to everyday wear and tear.
Improved Night Vision
These coatings are particularly beneficial when it comes to night vision. For drivers, dielectric film coatings on eyeglasses can significantly reduce the glare from oncoming headlights, making it safer to drive at night.
Energy Savings
In the context of solar panels, the use of anti-reflective coatings maximizes the absorption of sunlight, thus maximizing the conversion efficiency of the solar panels. This leads to significant energy savings and makes solar energy a more viable alternative to conventional energy sources.
Applications of Dielectric Film Coating
● Anti-reflection coatings
● Highly reflecting laser mirrors or partially transmissive output couplers
● Dichroic mirrors (treating different wavelengths differently)
● Various kinds of optical filters (e.g. for attenuation of certain wavelength regions)
● Beam splitters
● Heat reflectors
● Solar cell covers
● Thin-film polarizers
Coating Methods for Dielectric Film Coating
Spin Coating
This method involves placing a droplet of coating solution on a spinning substrate. Centrifugal force distributes the solution evenly across the substrate, forming a thin film. It is commonly used for small-scale and high-precision coating applications due to its ability to produce uniform and thin films.
Dip Coating
In this method, the substrate is dipped into a bath of coating solution and then withdrawn at a controlled speed. The solution adheres to the substrate as it is withdrawn, forming a film. Dip coating is suitable for large-scale and simple-shaped substrates.
Spray Coating
This method involves atomizing the coating solution and spraying it onto the substrate. The solution forms a film as it dries on the substrate. Spray coating is versatile and can be used for various substrate shapes and sizes.
Printing Methods
Various printing techniques, such as screen printing, inkjet printing, and flexographic printing, can be used to apply dielectric films. These methods are particularly suitable for patterning and depositing films on specific areas of the substrate.
Packaging And Shipping
|
Packaging |
Wooden crate package for standard exporting package. |
|
Shipping |
We will help you to choose the best shipping way according to your detail requirements. By sea, by air, or by express, etc. |
Our Certificate
FAQ
We're well-known as one of the leading dielectric film coating manufacturers and suppliers in China. If you're going to buy customized dielectric film coating made in China, welcome to get pricelist from our factory. For price consultation, contact us.
Highly Reflective Film Coating, Dielectric Film Coating, High Laser Damage Threshold Resistant Coating