Suppression of flare ghosting, low-reflective black plating compatible with ultraviolet to infrared.
Low-reflective black plating is a surface treatment technology that significantly suppresses light reflection through a special fine surface structure (moth-eye structure), reducing the occurrence of flare and ghosting. It accommodates a wide range of wavelengths from ultraviolet to visible to infrared, contributing to stray light prevention and resolution enhancement in optical devices and cameras. It achieves a specular reflectance of less than 0.1% and a total reflectance of less than 5%, demonstrating excellent low-reflective performance. It can be applied to various metals such as aluminum, copper, iron, and stainless steel, and is compatible with complex shapes. Furthermore, it is an environmentally friendly plating technology that complies with RoHS2. The selection of surface shapes is also possible according to the required performance.
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basic information
- Specular reflectance: 0.1% or less (incident angle 5 degrees) - Total reflectance: 5% or less (incident angle 8 degrees) - Applicable wavelength: Ultraviolet to visible to infrared range - Film thickness: 0.2 to 0.3 μm - Surface structure: Moth-eye structure (fine unevenness of 20 to 50 nm) - Applicable materials: Aluminum, copper, iron, stainless steel, etc. - Shape compatibility: Uniform film formation possible even on complex shapes - Features: High low-reflectance performance due to light confinement effect - Environmental compliance: RoHS2 compliant (hexavalent chromium below 100 ppm and below detection limit) - Customization: Surface shape selection possible according to required performance * We offer optimal low-reflective coatings tailored to your applications, from solving optical performance issues to mass production. For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
- Internal camera components (lens barrel, aperture parts): flare and ghost reduction, improved image quality - Surveillance cameras / in-vehicle cameras: suppression of stray light in backlighting, improved visibility - Optical sensors / measuring instruments: improved measurement accuracy through reduced stray light - Internal laser equipment: stable light control through reflection suppression - Projectors / video equipment: improved contrast, reduced unwanted reflections - Infrared devices / inspection equipment: improved detection performance through low reflection across a wide wavelength range - Semiconductor and electronic components: prevention of optical interference, reduced malfunction - Proven application on aluminum and stainless steel parts - Proven adoption of low reflection in optical device applications - Proven uniform film formation on complex-shaped parts Contributing to improved optical performance through optimal design tailored to applications. *For more details, please refer to the PDF materials or feel free to contact us.
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Company information
Kyushu Denka conducts surface treatment of various metals and has established a research and development department to flexibly respond to advanced order requirements through multifaceted technical research. The specialized staff who work diligently on research here are an important presence that supports the company from a technical standpoint. They continue to challenge themselves in pursuit of cutting-edge technology that leads the plating industry.
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