The difference between optical coating manufacturers and vacuum coating manufacturers
Difference in nature
1. Optical coating refers to the process of depositing metal or dielectric films on the surface of optical materials. The purpose of coating the surface of optical materials is to reduce or increase reflection, beam separation, color separation, filtering, polarization, etc. The commonly used coating methods include physical coating and chemical coating.
2. Vacuum coating is a method of heating metal or non-metal materials under high vacuum conditions, causing them to evaporate and condense on the surface of the plated part, forming a thin film. For mutants, vampires, chromium chloride coatings, and so on.
Differences in Coating Principles
1. Vacuum coating is a new technology based on vacuum technology, which uses physical or chemical methods to absorb electron beams, molecular beams, ion beams, plasma beams, radio frequency, and magnetic control, providing new processes for scientific research and practical production. Simply put, it is a method of evaporating or sputtering metals, alloys, or compounds in a vacuum to solidify and deposit them on a coated substrate.
2. Optical interference is crucial in thin film optics. The commonly used method for optical thin film technology is vacuum sputtering to deposit thin films on glass substrates. It is usually used to control the reflectivity and transmittance of the incident light beam on a glass substrate to meet different needs.
In recent years, the development of laser technology has put forward higher requirements for the reflectivity and transmittance of coatings, promoting the development of multi-layer high reflection films and broadband anti reflection films. In many applications, polarizing reflective films, color separation films, cold light films, and interference filters are made using high reflective films.
The difference between methods and materials
1. Materials for vacuum coating method:
The main results are as follows: vacuum evaporation: the substrate to be coated is cleaned and placed in the coating chamber. After pumping, the thin film material is heated to a high temperature, with steam reaching around 13.3 Pa, and steam molecules fly to the surface of the substrate to form a thin film.
Cathodic sputtering plating: Place the substrate to be plated opposite the cathode, introduce inert gas (such as argon) into the vacuum chamber, maintain the pressure at 1.33-13.3pa, and then connect the cathode to a 2000V DC power supply to excite glow discharge. Positive argon ions collide with the cathode, causing it to emit atoms, and the sputtered atoms pass through the cathode. Deposition of inert gas on the substrate to form a thin film.
Chemical vapor deposition: The deposition of thin films is achieved through the thermal decomposition of selected metals or organic compounds.
Ion plating: Ion plating is essentially an organic combination of vacuum evaporation plating and cathode sputtering plating, with two process characteristics.
2. Optical coating method materials
Magnesium fluoride: colorless square powder with high purity. The optical coating prepared with it can improve transmittance without producing fracture points.
Silicon dioxide: colorless and transparent crystal with high hardness and melting point. Silicon dioxide has high purity and can be used to prepare high-quality SiO2 coatings. The evaporation state is good and there are no collapse points. According to usage requirements, it can be divided into ultraviolet, infrared, and visible light.
Zirconia: white recrystallized state, high refractive index, high temperature resistance, stable chemical properties, high purity. It can be used to prepare high-quality zirconia coatings without producing fracture points.
Shenzhen Ruicheng Optoelectronic Technology Co., Ltd. adopts the most advanced magnetron sputtering coating technology, focusing on the research and development and production of high-end filters at home and abroad. Its production and export are mainly sold to developed countries such as Europe and America, and it is at a first-class level in the same industry.
1. Optical coating refers to the process of depositing metal or dielectric films on the surface of optical materials. The purpose of coating the surface of optical materials is to reduce or increase reflection, beam separation, color separation, filtering, polarization, etc. The commonly used coating methods include physical coating and chemical coating.
2. Vacuum coating is a method of heating metal or non-metal materials under high vacuum conditions, causing them to evaporate and condense on the surface of the plated part, forming a thin film. For mutants, vampires, chromium chloride coatings, and so on.
Differences in Coating Principles
1. Vacuum coating is a new technology based on vacuum technology, which uses physical or chemical methods to absorb electron beams, molecular beams, ion beams, plasma beams, radio frequency, and magnetic control, providing new processes for scientific research and practical production. Simply put, it is a method of evaporating or sputtering metals, alloys, or compounds in a vacuum to solidify and deposit them on a coated substrate.
2. Optical interference is crucial in thin film optics. The commonly used method for optical thin film technology is vacuum sputtering to deposit thin films on glass substrates. It is usually used to control the reflectivity and transmittance of the incident light beam on a glass substrate to meet different needs.
In recent years, the development of laser technology has put forward higher requirements for the reflectivity and transmittance of coatings, promoting the development of multi-layer high reflection films and broadband anti reflection films. In many applications, polarizing reflective films, color separation films, cold light films, and interference filters are made using high reflective films.
The difference between methods and materials
1. Materials for vacuum coating method:
The main results are as follows: vacuum evaporation: the substrate to be coated is cleaned and placed in the coating chamber. After pumping, the thin film material is heated to a high temperature, with steam reaching around 13.3 Pa, and steam molecules fly to the surface of the substrate to form a thin film.
Cathodic sputtering plating: Place the substrate to be plated opposite the cathode, introduce inert gas (such as argon) into the vacuum chamber, maintain the pressure at 1.33-13.3pa, and then connect the cathode to a 2000V DC power supply to excite glow discharge. Positive argon ions collide with the cathode, causing it to emit atoms, and the sputtered atoms pass through the cathode. Deposition of inert gas on the substrate to form a thin film.
Chemical vapor deposition: The deposition of thin films is achieved through the thermal decomposition of selected metals or organic compounds.
Ion plating: Ion plating is essentially an organic combination of vacuum evaporation plating and cathode sputtering plating, with two process characteristics.
2. Optical coating method materials
Magnesium fluoride: colorless square powder with high purity. The optical coating prepared with it can improve transmittance without producing fracture points.
Silicon dioxide: colorless and transparent crystal with high hardness and melting point. Silicon dioxide has high purity and can be used to prepare high-quality SiO2 coatings. The evaporation state is good and there are no collapse points. According to usage requirements, it can be divided into ultraviolet, infrared, and visible light.
Zirconia: white recrystallized state, high refractive index, high temperature resistance, stable chemical properties, high purity. It can be used to prepare high-quality zirconia coatings without producing fracture points.
Shenzhen Ruicheng Optoelectronic Technology Co., Ltd. adopts the most advanced magnetron sputtering coating technology, focusing on the research and development and production of high-end filters at home and abroad. Its production and export are mainly sold to developed countries such as Europe and America, and it is at a first-class level in the same industry.