日本真空科学研究所 List of Products and Services

High-efficiency polarization conversion element born from thin film manufacturing technology and precision glass processing. 【What is a polarization conversion element?】 Typically, it is possible to select only specific polarization from unpolarized light using a PBS, but since the unwanted polarization components cannot be utilized, the light intensity decreases. Therefore, the polarization exchange element converts the separated unwanted polarization into the necessary polarization to improve utilization efficiency. ● For other functions and details, please download the catalog.

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Adjusting the amount of light transmitted without changing the color tone ND filter beam splitter used in various optical devices 【Features】 ○ Two types are available: one that adjusts the transmittance using special glass or resin that absorbs light, and another that adjusts the transmittance with a half-mirror coating. ○ The half-mirror coating is broadly classified into two categories: dielectric multilayer films and metal films, with chromium (Cr) commonly used as the material for metal films due to its excellent durability. We can propose the optimal solution according to the customer's application. ○ Transmittance and reflectance Dielectric multilayer films have almost zero absorption, so when combined, the transmittance and reflectance total approximately 100%. The transmittance (reflectance) can be set arbitrarily in the range of 0 to 100%. ● For other functions and details, please download the catalog.

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Carbon hard film that combines graphite structure and diamond structure, diamond-like carbon 【Features】 ○ Low friction and wear resistance High Vickers hardness (1,500 to 2,500) and low friction coefficient (0.05 to 0.2) ○ Lubricity: High smoothness of the coating makes it difficult to adhere ○ Infrared permeability: Allows infrared to pass through ○ Stain resistance: Difficult for dirt to adhere ○ Corrosion resistance: Does not dissolve in acids or alkalis ○ Biocompatibility: Gentle on the human body ○ Gas barrier properties: Blocks gases ○ Release properties and low adhesion: Reduces adhesion and seizure of soft metals ● For other functions and details, please download the catalog.

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Dielectric multilayers with various optical properties are created by stacking two or more thin films with different refractive indices. 【Film Formation Method】 Films are produced using the "vacuum deposition method." This method involves heating the film material in a chamber (oven) maintained at a high vacuum, causing it to evaporate, and depositing the vapor onto a substrate (such as glass) positioned above. 【Product List】 ○ Anti-reflective (AR) coating ○ Half-mirror (HM) coating ○ High-reflective mirror coating ○ UV-cut filter coating ○ Dichroic mirror coating ○ Polarizing beam splitter (PBS) coating ● For other functions and details, please download the catalog.

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This is an introduction to various glass processing technologies handled by the Japan Vacuum Science Research Institute. To broadly accommodate the manufacturing of optical components, it is very important to combine film formation technology and various processing technologies in a complementary manner. We are actively working on improving existing technologies and introducing new technologies to meet various demands. 【List of Processing Technologies】 ○ Glass Processing Technology: Technology for processing glass materials into required shapes - Polishing technology / Cutting technology / Molding technology ○ Printing Technology: Technology for screen printing on glass ○ Adhesive Technology: Technology for precisely bonding glass using optical adhesives ○ Assembly Technology: Technology for assembling optical components or sheet metal using adhesives or adhesive tapes ● For other functions and details, please download the catalog.

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Film formation using "vacuum deposition method" that evaporates chemicals in a vacuum, optimizing the film structure according to the type of substrate, achieving high durability with water-repellent and oil-repellent coatings. 【Features】 ○ Since it is a non-heating film formation, it can be applied not only to glass but also to plastics and other materials. ○ Water-repellent coating Ensures visibility even when raindrops adhere, making it ideal for automotive windshields and similar applications. ○ Oil-repellent coating In addition to water repellency, it also possesses oil-repellent properties, allowing for easy removal of sebum and other residues, making it perfect for touch panels and other products that are frequently touched. ● For other functions and details, please download the catalog.

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Hybrid Type Enhanced Reflective Film AL Enhanced Reflective Film [Features] ○ What is AL Enhanced Reflective Film Generally, the metals used as film materials for mirrors include Ag, Al, Cr, etc., but it is quite difficult to find one that satisfies all aspects of optical properties, corrosion resistance, and cost. The solution to this is the hybrid type enhanced reflective film, which stacks a dielectric film on top of the AL film. ○ Types of AL Enhanced Reflective Film AL is deposited on a substrate such as glass, and a two-layer dielectric multilayer film is stacked on top of it, which is commonly referred to as AL Enhanced Reflective (AL-HR) film. Additionally, when the dielectric multilayer film is increased to four layers to further enhance the reflection efficiency, it is called AL Enhanced Enhanced Reflective (AL-HHR) film. ● For other functions and details, please download the catalog.

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Providing high-performance and high-quality films through the deposition method Various metal thin films handled by the Japan Vacuum Science Institute 【Features】 ○ The deposition method allows for precise control of film thickness, enabling not only full reflection mirror coatings but also half-mirror coatings that transmit part of the incident light. ○ We propose the optimal type of film based on required performance, cost, durability, etc. ○ Product List - Aluminum (Al) The most popular metal film, combining high reflectivity and low cost. - Chromium (Cr) Balances low cost with high durability (corrosion resistance and scratch resistance). - Gold (Au) Exhibits extremely high reflectivity in the infrared range, used in optical devices utilizing infrared light. - Additionally, we can also produce films of alloys such as Inconel, Nichrome, Almel, and Chromel. ● For other functions and details, please download the catalog.

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