Japan Cell receives inquiries from companies, research facilities, and universities around the world, and works with customers in many countries. We will meet the diverse needs of various customers by combining technologies such as special precision processing technology as well as patented bonding technology.
Optical contact, which is also called as direct fusion bonding or adhesive free contact, is the core technology of Japan Cell.
The molecule within amorphous glass is in stable condition that the molecule attract each other with a force. However, the molecule on the surface of precision polished glass is in unstable condition as the molecule on glass surface lose attracting force.
When two precision polished glass of the molecule of unstable condition are contacted, the molecule in contacted glass surface react with each other and shift to stable condition. The process of Optical contact is based on the above bonding theory.
Low-melting-point Glass Frit Bonding
We offer the bonding solution with glass frit that fuses below the melting point of glass.
Special powdered glass frit is sandwiched between the joint surfaces and fired in furnace to vitrify.
It is resistant to chemicals and can bond large glass products.
Organic Solvent Adhesives
Japan Cell possesses deep expertise in many adhesive types, including UV curing and epoxy adhesive.
UV-Curable Adhesive is activated and cured by irradiation with UV light.
UV curing bonding enables highly accurate bonding. It can bond materials that are sensitive to heat, and bond glasses with different coefficients of thermal expansion or thin film substrates at room temperature. It is also possible to bond glass and metal by UV curing.
We also have worked with epoxy adhesive. Some of our assemblies bonded by epoxy adhesive are used under ultra high vacuum condition.
We also do UV bonding and epoxy adhesive even after appling AR coating.
Our core technology, optical contact bonding starts with precision polishing.
Parts necessary for manufacturing various products, including various glass materials and crystal materials, are finished by high-precision polishing to achieve the highest level products with excellent precision and strength.
In addition to plate-shaped polishing such as flat substrates, we can also polish structures with height and depth.
Micro-hole Driling/Inner Bore Polishing
In addition to micro-hole drilling with ultrasonic machining, Japan Cell can accurately polish the inner wall of holes.
Optical Thin Film Coating
Thin film coating such as dielectric/metal coanting and transparent conductive films can be vapor-deposited on the surfaces of various glass and crystal substrates.
By changing the refractive index, thickness, and number of layers of the thin film according, we design a thin film coating program that transmits, reflects, and absorbs light in a specific wavelength range according to the purpose of use.
Critical assemblies for glass parts/optical unit are produced in Japan Cell's ISO Class 6 cleanroom, and there is almost no contamination of fine dust.
Critical assemblies for glass parts/optical unit are produced in Japan Cell's ISO Class 6 cleanroom, which is monitored regularly to measure particulate levelsand there is almost no contamination of fine dust.
In addition, the tools for assembly working are cleaned by ultrapure water to remove tool's dust.
Utilizing a range of processes including micro-hole driling, glass cutting, glass grinding,counterbore, stepping, grooving, machining centers, ultrasonic processing, centerless grinding, centerless polishing, and other processing, we provide an extensive range of glass materials and geometries.
Crystal Material Fabrication
Japan Cell offer the complex shaped optical componets of crystal material such as sapphire. We utilize a range of processes including micro-hole driling, glass cutting, glass grinding,counterbore, stepping, grooving, machining centers, ultrasonic processing, centerless grinding, centerless polishing and other processing, combine with optical contact technology to achive the complex shape.
Optical cells that do not use adhesive at the bonding surface are ideal for analyzers that use laser light.
Optical crystal cell (Sapphire, CaF2)
Japan Cell excel in optical contact bonding of crystal material like sapphire/CaF2.
Custom Optical Components
Japan Cell utilize the precision machining equipments and combine with optical contact technology to achive the shape which is hard to fabricate with machining working only.
Rod Lens Arrays
Drum lens arrays is used for exposure equipment and various light sources that require a uniform and bright illuminance distribution up to the periphery of the irradiation surface.
Magneto-Optical Trap Vacuum Cell
Vacuum Cell: Vacuum cell, also known as the UHV Cell (Ultra High Vaccum Cell), is used for Bose-Einstein Condensate (BEC) and Magneto-Optical Trap (MOT).
Japan Cell's searchlight can be used safely for disaster relief operations even under harsh environments such as adverse weather conditions and dust.