Optic AR Coating Machine For IR And Laser Coatings

1. Product Description:

The Optical Coating Systems manufactured by Guotai are designed to maximize coating uniformity and production throughput, and have supported to a wide range of coating applications to include anti-reflection and highly reflective coatings, edge filters, beam splitters, optical filters, laser diodes, polarizers, gain flattening filters, and other complex non-quarter wave design including low stress and high laser damage threshold coatings.

2. Main Features:

• Flexible Configuration

The system can be carefully tailored to support client’s specific coating application and production requirements. Chamber sizes ranges from 400mm to 2700mm, which can be used as laboratory or mass production equipment. Configuration options include Thermal Evaporation, Electron Beam Evaporation, and Electron Beam Evaporation with Ion Assist; Substrate fixturing is available in single rotation, planetary, calotte, flip planetary, and unique arrangement for specific requirements; Support front side heating or back side heating, or both.

• Excellent Performance and Reliability

Guotai recognizes that user-friendliness and reliability of optical coating equipment is paramount to client’s success. The system incorporates proven design features based on decades of experience that produce exceptional results with easy to use software and dependable run to run consistency. We strive to continuously obtain customer feedback from coating engineers, operators, and maintenance personnel to improve design features that will minimize system downtime and increase overall productivity. Subsystem equipment of our systems are from reliable and brand manufacturers such as Baosi, Edwards, Inficon, Burkert, Omron to name a few. This allows our clients to benefit from the depths of Guotai and its vendors for the availability of service and spare parts.

• Coating Process Capability and Support

The system includes optional process development, system calibration, film characterization and uniformity adjustment to less than 0.5%. They can be delivered with multiple, fully developed, production-ready coating processes, pre-programmed to minimize system downtime between production changeover's and to maximize run efficiencies and product yields. Calibration of the process is so consistent that new designs may be supplier to the operator from a remote site with the results from a test run analyzed and a small adjustment in calibration made before final production. Designed for run-to-run repeatability and to deliver excellent results after a minimum number of test coatings, the system lends itself to a fully automatic operation reducing time, manpower, and costs-even with high layer counts and complex layer stacks.

3. Model & Specifications:

4. About Us

Guotai is an ISO 9001& ISO14001 certified manufacturer of high-performance optical filters and thin-film coating systems. Registered in 2013, Guotai has rapidly grown from a small startup to a China-based leader in precision optical thin film systems. Guotai's engineering team has been instrumental in achieving this growth by refining our advanced E-Beam deposition process, designing and building our coating equipment, and dedicating a large amount of resources to research and development of optical coating process. By so far, Guotai has obtained more than 30 patents regarding the coating systems and a few of national and regional prizes.

Guotai Provides:
Design & Development & Manufacture : Vacuum Coating Machine / Mechanical Parts / Electrical Parts / Coating Process
Services: Equipment Installation / Maintenance / Repair / Technical Support / Thin Film Production

[Principle of anti-reflection coating]
The anti-reflection coating is based on the wave of light and interference phenomena. If two light waves with the same amplitude and wavelength are superimposed, then the amplitude of the light wave will increase; if the two light waves have the same origin, the wave lengths are different, and if the two light waves are superimposed, they cancel each other out.
1) Amplitude condition: The refractive index of the film material must be equal to the square root of the refractive index of the lens base material.
2) Phase conditions: The thickness of the film layer should be 1/4 wavelength of the reference light. When d=λ/4 λ=555nm, d=555/4=139nm
For the anti-reflection coating, many spectacle lens manufacturers use light waves (wavelength of 555nm) that are more sensitive to the human eye. When the thickness of the coating is too thin (<139nm), the reflected light will appear light brownish yellow, if it is blue, it means that the thickness of the coating is too thick (>139nm). The purpose of coating the reflective layer is to reduce the reflection of light, but it is impossible to achieve no reflection of light. There will always be residual color on the surface of the lens. We will also find that the curvature of the convex and concave surfaces of the residual color on the lens also makes the coating speed different. Therefore, the yang part of the lens is green, and the edge part is lavender red Or other colors.
3) Anti-reflective coating technology: The difficulty of coating the organic lens is higher than that of the glass lens. Glass materials can withstand high temperatures above 300 °C, while organic lenses will turn yellow when it exceeds 100 °C and then quickly decompose.