K9 Frosted Optical Glass Plate 11.7mm×9mm×0.5mm High Transmittance Diffuser For

The K9 Frosted Optical Glass Plate measuring 11.7mm * 9mm * 0.5mm is a precision-engineered optical component fabricated from high-grade K9 optical glass with single or double-sided frosted surface treatment. K9 optical glass is renowned for its exceptional optical homogeneity, minimal bubble and inclusion content, and stable refractive index of 1.5163, making it the preferred substrate material for demanding optical applications. Through a meticulous fine sandblasting process, the frosted surface achieves a uniformly diffused light transmission pattern with consistent haze levels and zero stray light artifacts, delivering reliable and repeatable optical performance across machine vision, automated inspection, optical instrument, and precision imaging systems. The ultra-thin 0.5mm profile combined with tight dimensional tolerance control of 11.7mm * 9mm makes this component ideally suited for integration into miniaturized optical assemblies, compact sensor modules, handheld diagnostic devices, and space-constrained industrial vision setups where both optical quality and mechanical precision are critical design requirements.

• Premium K9 Optical Glass Substrate: Manufactured from genuine K9 borosilicate crown glass with a refractive index of 1.5163 and Abbe number of 64.1, featuring exceptionally low bubble and inclusion density that ensures distortion-free light transmission and superior optical clarity compared to ordinary float glass. The consistent melt quality guarantees batch-to-batch reproducibility for OEM production environments.
• Uniform Frosted Surface Treatment: Both single-sided and double-sided frosting options are available, achieved through a precision-controlled fine sandblasting process that produces a highly consistent matte surface with uniform haze distribution. The frosted texture effectively eliminates specular reflections and hot spots while preserving high base transmittance in the visible wavelength range, making it the ideal diffuser element for even illumination requirements.
• High Visible Band Transmittance: Unlike conventional frosted glass that significantly attenuates light, the K9 substrate maintains excellent base transmittance across the visible spectrum from 400nm to 700nm. The frosting treatment softens and diffuses the transmitted beam without excessive luminous flux loss, ensuring sufficient signal levels for downstream detectors, cameras, and optical sensors in machine vision pipelines.
• Ultra-Thin 0.5mm Profile with Precision Dimensions: The finished plate measures just 0.5mm in thickness with tightly controlled length and width tolerances of 11.7mm * 9mm, enabling seamless integration into compact optical paths, slim imaging modules, and miniaturized measurement instruments. The precision-cut edges are burr-free and optically clean, eliminating edge scattering artifacts that could compromise system performance.
• Excellent Mechanical and Thermal Stability: K9 optical glass exhibits a Knoop hardness of 610, providing excellent scratch resistance and surface durability that withstands repeated handling, cleaning cycles, and long-term operational use without surface degradation. Its thermal expansion coefficient of 7.1 * 10⁻⁶/K and strain point of 500℃ deliver reliable dimensional stability across typical laboratory and industrial operating temperature ranges.
• Versatile Application Across Optical Systems: The 11.7mm * 9mm form factor combined with the frosted diffuser functionality enables deployment across a wide spectrum of applications including machine vision illumination homogenizers, optical instrument beam diffusers, laser speckle reducers, backlight uniformity filters for LCD inspection, medical endoscope calibration targets, and photographic light meter diffusers. Custom sizes and frosting patterns are available upon request for specialized OEM integration projects.
• Chemical Durability and Cleanroom Compatibility: K9 glass demonstrates excellent resistance to water, alkaline solutions, and common organic solvents, allowing safe cleaning with standard optical cleaning agents including isopropyl alcohol,and lens cleaning solutions. The material is compatible with ISO Class 5 and above cleanroom environments, making it suitable for semiconductor inspection equipment, pharmaceutical quality control systems, and biomedical optical devices.

The K9 Frosted Optical Glass Plate serves as an indispensable optical component across numerous high-technology and scientific disciplines. In the rapidly evolving field of machine vision and industrial automation, this frosted glass plate functions as a critical beam homogenizer and diffuser element placed between the illumination source and the inspection target, transforming uneven light distribution into a smooth and uniform illumination field that dramatically improves the accuracy and repeatability of automated optical inspection algorithms for surface defect detection, dimensional measurement, and pattern recognition tasks. Within high-end optical testing laboratories, the precisely controlled frosting characteristics make it an ideal calibration standard for evaluating imaging system modulation transfer function performance, stray light analysis, and lens veiling glare measurements. The consistent diffuse properties also render it essential for optical power meter calibration, spectrophotometer baseline correction, and integrating sphere reference measurements conducted in metrology and research institutions. In the display and lighting industry, the plate is utilized as a compact diffuser window for LED backlight uniformity enhancement in LCD panel inspection stations, projector light engine homogenization, and microscopy illumination field flattening applications where optical quality directly determines measurement reliability. For precision imaging equipment including scientific cameras, medical endoscopes, and confocal microscopes, the K9 optical glass substrate provides the necessary refractive index stability and surface quality to function as a beam shaping or reference element without introducing chromatic aberration or geometric distortion. Additional applications include laser safety diffuser windows, photometric sensor cosine correctors, photographic exposure meter calibration targets, fiber optic faceplate diffusers for intensified camera systems, and fluorescence microscopy excitation light homogenizers. For OEM customers developing customized optical instruments, our engineering team offers tailored solutions with custom dimensions from sub-millimeter to large format plates, specified frosting grades from light matte to heavy diffuse, selective area frosting patterns, coated or uncoated variants with anti-reflection or protective overcoat options, and edge finishing including beveled, radiused, or polished configurations to meet exact integration requirements.

Every K9 Frosted Optical Glass Plate undergoes comprehensive quality inspection before shipment, including dimensional verification with precision micrometers and optical comparators, surface quality examination under controlled illumination at multiple magnification levels, haze uniformity assessment using calibrated haze meters, and transmittance verification across the visible wavelength band with spectrophotometric measurement equipment. Products are individually separated with optical-grade lint-free tissue paper and securely packed in custom-fitted anti-static foam trays within reinforced export-quality cartons, ensuring complete protection against mechanical shock, vibration, and surface contamination during transit. For high-volume OEM orders, vacuum-sealed cleanroom packaging with desiccant inserts is available to maintain pristine optical surface conditions during extended storage periods. Each shipment includes a detailed certificate of conformity, material traceability documentation, and dimensional inspection report. Our quality management system is certified to ISO 9001 standards, and all products undergo final outgoing quality assurance checks by trained optical inspection technicians using standardized acceptance criteria. With over 25 years of specialized expertise in optical glass processing and precision component manufacturing, our dedicated application engineering team provides comprehensive technical consultation, prototype fabrication support, and responsive after-sales service. Whether you require standard catalog items or fully customized optical solutions with non-standard dimensions and frosting specifications, please contact our sales engineering department for a detailed quotation, lead time estimation, and complimentary sample evaluation program details.