Ohara Optical (M) Sdn Bhd

NANOCERAM^TM is glass-ceramic for which we have further evolved OHARA’s nanocrystallization technology, thus far recognized in all fields, and achieved superior mechanical properties and high transmittance.
New proposals will be possible that cannot be realized with sapphire crystal glass and chemically strengthened glass, such as cover glass for optical devices and mobile devices, which requires shock resistance.

Impact Resistance High Hardness

Compared with general borosilicate glass, NANOCERAM™ has 30% higher hardness and showed more than 10 times higher impact resistance in steel ball drop impact test. In addition, it has a 20% higher hardness than chemically strengthened glass, and showed more than 3 times higher impact resistance in steel ball drop impact test. Also, it has better fracture toughness than sapphire crystal glass, and cracks that cause breakage do not occur even if there are scratches and realizing a characteristic that is resistant to cracking.

Good Processability

Although it has the properties of hard ceramics, the cutting, polishing and moldability realized workability comparable to that of glass. Moreover, it has grinding and polishing property which can shorten process time to about 1 / 20th of sapphire crystal glass.

High Transmittance

Since, crystal grains of glass ceramics are large, so it is difficult to transmit light and never used for optical applications. However, high transparency has been realized by Ohara's nanocrystallization technology (particle diameter about 6 nm) which has a high track record in the space and astronomy fields. NANOCERAM™ is mounted on a high-end lens protector for single-lens reflex interchangeable lenses of domestic manufacturers who are demanding strict optical performance and precise quality, and NANOCERAM™ has received high marks.

Optical glass is used in various optical devices such as mirrorless cameras, projectors, television cameras, automotive cameras, security cameras and medical devices. 
The optical parts of optical devices are composed of combinations of optical components, including spherical lenses, aspherical glass mold lenses, prisms and filters, which are made with multiple types of optical glass with characteristics in its refractive index and/or its transmittance.

At OHARA, we meet all optical design needs with a line-up of over 140 types of optical glasses with the characteristics that enable optical devices to attain higher performances, miniaturization and cost reduction. In addition, depending on requests from our customers, we supply lens blanks in a suitable shape to be processed, finished lenses and so on.

- Polished Lenses: Finished lenses produced by polishing, centering and coating

- Reheat Pressings: Products molded in heat press to shapes suitable for spherical polished lenses and prisms

- Polished Preforms: Spherically polished product in a suitable shape to be processed into aspherical glass mold lenses

- Glass Mold Lenses: Glass Mold Lenses

OHARA provides customers with optical glass products in a wide variety of types, from glass materials to optical components. The cutting-edge glass materials of the highest quality that OHARA provides support people around the world in their smiles and sense of wonder.

It is a solid electrolyte material with high lithium-ion conductivity. Since it is an oxide-based solid electrolyte, it may be treated in the atmosphere and exhibits a high level of safety. With excellent material properties, the LICGC has potential to resolve problems with the environmental performance of products. Its applications include being used as electrolyte in next-generation lithium-ion batteries, separators, CO2 sensors, next-generation capacitors, technology for recovering lithium ions from seawater and other electrochemical devices. 

OHARA has developed and evaluated a Lithium Ion Conducting Glass Ceramic (LICGC^™ ) powder, PW-01, that functions as a cathode additive in lithium ion batteries and enhances battery performance. This unique glass ceramic powder inhibits the growth of resistive layers in the electrode, increases the charge and discharge cycles by 4X, and greatly improves stored energy retention at high temperature.

These materials are optically homogeneous and have excellent internal transmittance and high durability against solarization (coloring by UV). They are used in semi-conductor production equipment (Stepper Cameras) and its peripherals (Illumination Systems, etc.).

– The format of this catalog is identical to OHARA’s master catalog for optical glass so that it may be used for optical systems other than i-line systems. For individual properties, refer to the detailed data [PDF]. However, the properties mentioned below differ from the detailed data [PDF].

– The refractive index represents values for 22 segments of the spectrum ranging from 326 nm to 2325 nm.

– Refractive indices for wavelengths not specified in the catalog may be calculated using Sellmeier’s dispersion formula, as they have traditionally been. Given that the scope of applications for the dispersion formula is broad, the data sheet shows the dispersion formula constant used for the 326 nm to 1129 nm wavelength range. For refractive indices in the 1129 nm to 2325 nm wavelength range, use the dispersion formula constant specified below.

– The internal transmittance shows both the value for the standard sample thickness of 10 mm (τ10) as well as the value for the thickness of 25 mm (τ25), which is suitable for practical application.

OHARA Quartz successfully developed synthetic fused silica SK-1300 as a result of significant improvements made to the conventional VAD (vapor-phase axial deposition) method of optical fiber manufacturing technology.

Unparalleled,ideal characteristics are achieved.

• Ultra-high purity(total metallic impurities less than 0.5ppm)
• The OH content can be controlled to 1ppm to less.
• High heat resistance is ensured.
• High transmission is achieved.(The SK-1310 has excellent characteristics over the entire wavelength range of ultraviolet,visible and infrared.)
• Contain no bubbles or striae.
• Excellent laser resistance properties.
• The material for excelling in the homogeneity and precise optics is prepared.(SK-1320 series)

• - For VLSI manufacturing process: Furnace tubes, various industrial jigs for semiconductors
• - Sputtering targets
• - Photomask substrates for ultra-LSI and LCD.
• - Wafers for various types of devices such as TFT(poly-Si thin-film transistor LCD.), SOI (Silicon on Insulator) etc.
• - Optical elements, Lenses, mirrors and windows, for ultraviolet and vacuum ultraviolet.
• - materials for optical fiber