五鈴精工硝子 List of Products and Services

【Product Introduction: IOP Series】 This is a diffusion glass that uniformly diffuses incident light and has characteristics close to a Lambertian light source. The milky white color is due to the glass itself, not an opal coating. It has higher diffusivity than frosted glass. A feature of this product is that the spectral transmittance can be adjusted by changing the thickness. 【Features】 ■ Uniform diffusion glass close to a Lambertian light source ■ Higher diffusivity than frosted glass diffusion plates ■ Transmittance can be adjusted by modifying thickness and manufacturing conditions ■ Ideal for optical applications in machine vision, LED lighting, and observation systems

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**Product Introduction: Glass Molded Lenses** Glass molded lenses, created through die-casting molding, achieve complex shapes that are difficult to produce through polishing, as well as lens structures that previously required assembly, all in a single molding process. Most products are fully customized according to customer requests. We can flexibly accommodate everything from prototypes to mass production. In addition to the lens molding technology we have cultivated over many years, we utilize our unique measurement and inspection techniques to provide high-precision products. We cater to a variety of shapes and specifications, including not only lens arrays but also aspherical lenses, Fresnel lenses, rod lenses, and irregular lenses. **Features** ■ Integrated glass lenses through molding ■ Achieves complex shapes and integrated structures, enabling shapes that are difficult to polish ■ Fully customized support from prototype to mass production ■ Proven track record with various shapes including aspherical lenses, Fresnel lenses, rod lenses, and irregular lenses ■ High quality guaranteed through unique measurement and inspection technologies

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Product Introduction: Original Optical Glass Filters The optical glass filters from Gohsui Seiko Glass are original products manufactured through melting based on our unique composition. They comply with RoHS directives and REACH regulations. They are adopted in a wide range of fields, including optoelectronics, office automation equipment, photographic equipment, lighting fixtures, and medical devices. Features: - Designed with spectral functions inherent to the glass material itself - High-quality finish with minimal bubbles and striations due to strict quality control - Excellent physical and chemical stability - Customizable to desired shapes - Complies with RoHS directives and REACH regulations, contributing to green procurement

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**Product Introduction: ISK Series** The infrared absorption filter "ISK Series" is an optical glass filter designed to block almost all thermal rays (infrared) while allowing visible light to pass through with a high transmission rate. It is widely used in various fields such as laser protective glasses, heat-resistant filters, YAG laser blocking applications, and medical devices. **Features** ■ Almost completely blocks infrared (thermal) rays ■ Extremely high transmission rate for visible light ■ Available in ultraviolet transmission types, offering a wide range of applications ■ Numerous achievements in YAG laser blocking applications both domestically and internationally

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• Other filters
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**Product Introduction: ITY Series** The "ITY Series" is a filter that has less dependence on the angle of incidence compared to multilayer membrane filters and minimizes the deviation of the ultraviolet cut-off wavelength. It is adopted in various fields that require protection from ultraviolet light, including image processing devices, liquid crystal panel protection, and camera equipment. **Features** - Less angle of incidence dependence than multilayer membrane filters - Minimizes deviation of ultraviolet cut-off wavelength - Steep sharp cut characteristics at the onset - Effective in reducing chromatic aberration during camera shooting

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• Other filters
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Product Introduction: IEC Series The "IEC Series" is a color correction filter that has a high transmittance in the blue to green wavelength range and features steep spectral characteristics that efficiently absorb red light. Leveraging this property, it is incorporated into smartphones, digital cameras, surveillance cameras, and in-vehicle cameras, contributing to color correction in image sensors. It is widely adopted in various fields, including color correction for image sensors and laser protection. Features: ■ High transmittance in the blue to green wavelength range ■ Steep spectral characteristics that absorb red light ■ Can also be used as a near-infrared cut filter ■ Ideal for color correction in image sensors

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• Other filters
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Product Introduction: IUV Series The "IUV Series" is a bandpass filter with a peak transmission rate in the ultraviolet range. It absorbs visible light and selectively transmits only specific wavelengths in the ultraviolet range. Additionally, it can also be used as a neutral density filter, making it suitable for solar observation during events like solar eclipses. This series allows for the capture of images with a slightly reddish impression when viewed through the filter. It is widely adopted in various fields, including ultraviolet light meters and UV sensors. Features ■ Bandpass filter with a peak transmission rate in the ultraviolet range ■ Absorbs visible light and transmits only specific wavelengths of ultraviolet light ■ Usable as a neutral density filter for solar observation ■ Capable of capturing images with a reddish impression

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• Other filters
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【Product Introduction: IHU Series】 The "IHU Series" is an optical glass filter that has a transmission cutoff wavelength in the ultraviolet range and offers high weather resistance to ultraviolet light. It functions as a short-wavelength cut filter, absorbing light shorter than the set wavelength and transmitting light of longer wavelengths. There are also glass materials that can be molded using molds, allowing us to accommodate requests for lens arrays and aspheric lenses. It is used in various fields, including exposure devices, UV sterilization devices, and analytical instruments. 【Features】 ■ Capable of manufacturing lens arrays and other products with moldable glass materials ■ Has a transmission cutoff wavelength in the ultraviolet range ■ Excellent weather resistance, suitable for outdoor applications ■ Short-wavelength cut filter

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• Other filters
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【Product Introduction: IND Series】 The "IND Series" is a neutral density filter designed to maintain a constant spectral transmittance across the entire visible light spectrum. It allows for a reduction in light intensity when capturing images of intense light sources such as the sun, enabling the performance of cameras and sensors to be fully utilized. It is suitable for reducing the amount of light entering the camera when photographing strong light sources like the sun. Additionally, in astronomical photography such as solar eclipses, this filter allows for shooting with the aperture wide open or slowing down the shutter speed. It is widely adopted in various fields including cameras, machine vision, and analytical instruments. 【Features】 ■ Flat spectral transmittance design across the entire visible light spectrum ■ Effectively adjusts light intensity during the capture of intense light sources ■ Enhances freedom of shutter speed and aperture ■ Customizable density (optical density) according to application needs

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• Other filters
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**Product Introduction: IVG Series** The "IVG Series" is an optical filter that transmits light in a relatively narrow band, centered around the green wavelength region. It is suitable for applications that require a high transmission rate at specific wavelengths and is used for precise wavelength selection in combination with sharp cut filters. It is widely adopted in various fields such as optoelectronics, displays, video equipment, and inspection devices. **Features** - A filter that transmits wavelengths in a relatively narrow band centered around the green wavelength region - Maximizes transmission rate at specific wavelengths - Used for wavelength selection in combination with sharp cut filters

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• Other filters
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Product Introduction: IIR-SF Series The "IIR-SF Series" is a glass filter primarily composed of sulfides, designed to transmit infrared light in the range of 8 to 13 μm. Thanks to glass molding technology, it can accommodate the production of complex shapes such as lens arrays and aspheric lenses. Additionally, it contains no harmful substances such as arsenic or selenium, ensuring consideration for the environment and safety. It is widely used in various fields, including infrared sensors, surveillance cameras, and night vision. Features ■ Glass filter primarily composed of sulfides ■ Transmits infrared light in the range of 8 to 13 μm ■ Capable of manufacturing lens arrays and aspheric lenses ■ Completely free of harmful substances such as arsenic and selenium ■ Can accommodate complex shapes that cannot be formed by polishing, and is suitable for mass production

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• Other filters
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【Product Introduction: IEB Series】 The "IEB Series" is a UV-blue transmission filter (blue filter) that primarily transmits in the ultraviolet to blue wavelength range. It is used for wavelength selection and color correction. It is utilized in fields such as medical devices, inspection equipment, and imaging devices. 【Features】 ■ Transmits primarily in the ultraviolet to blue wavelength range ■ UV-blue transmission filter ■ Used for wavelength selection and color correction

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• Other filters
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【Product Introduction: ILB Series】 The "IVB Series" is a blue bandpass filter that primarily transmits light in the blue wavelength range. It is used for wavelength selection and color correction. It is utilized in fields such as medical devices and imaging equipment. 【Features】 ■ Primarily transmits light in the blue wavelength range ■ Blue bandpass filter ■ Used for wavelength selection and color correction

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• Other filters
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The "ILA Series" is an amber filter that lowers color temperature. It is used for reducing the color temperature of light sources and adjusting the color temperature of shooting light. Additionally, it can be adjusted in thickness, allowing us to create filters with color temperature conversion capabilities that meet your specific needs. Various filters from Isuzu Seiko Glass are used in a wide range of fields, including optoelectronics, office equipment, photographic equipment, lighting fixtures, and medical devices. 【Features】 ■ Amber filter that lowers color temperature ■ Used for reducing the color temperature of light sources and adjusting the color temperature of shooting light ■ Thickness adjustment is possible *For more details, please refer to the PDF materials or feel free to contact us. *Please feel free to consult us for orders of filters with characteristics other than those in the catalog.

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• Other filters
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The "ILB Series" is a blue filter that raises color temperature. It is used for increasing the color temperature of light sources and adjusting the color temperature of shooting light. Additionally, the thickness can be adjusted, allowing us to create filters with color temperature conversion capabilities tailored to your preferences. Various filters from Isuzu Seiko Glass are used in a wide range of fields, including optoelectronics, office equipment, photographic equipment, lighting fixtures, and medical devices. 【Features】 ■ Blue filter that raises color temperature ■ Used for increasing the color temperature of light sources and adjusting the color temperature of shooting light ■ Thickness adjustment is possible * For more details, please refer to the PDF materials or feel free to contact us. * Please feel free to consult us for orders of filters with characteristics other than those in the catalog.

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• Other filters
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Product Introduction: IHU250H The "IHU250H" is a glass that functions as an optical glass filter that transmits ultraviolet light, while also being usable as a molding material. Its lower processing temperature compared to quartz and thermal expansion rate closer to that of metals make it suitable for metallization. For detailed optical properties, please refer to the downloadable materials. Features ■ Processing temperature range is lower than that of quartz (1600-1700°C) (IHU250H: 563°C) ■ Thermal expansion rate is closer to that of metals than quartz, making it suitable for metallization ■ Available for sale as molding materials such as block materials, rod materials, and ball lenses.

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• Other filters
• Other optical parts