Technology / product information

The "Synthetic Fused Silica Bi-Concave Lens" features concave surfaces on both sides and excels in its ability to diffuse light. With a negative focal length, it is perfect for optical systems requiring image reduction and light dispersion. This lens is used in illumination systems, telescopes, cameras, laser systems, as well as optical devices like door scopes and flashlights.

Made from synthetic fused silica, the lens achieves high UV wavelength transparency, thermal expansion resistance, and heat shock resistance, making it suitable for high-temperature environments and UV-based applications.

SUGITOH OPTICAL (THAILAND) CO., LTD., based in Samut Sakhon, Thailand, offers high-quality optical products grounded in advanced Japanese technology.

■ Features
・Negative focal length for light dispersion and image reduction
・High UV transparency and heat resistance
・Enhances flexibility in optical system design
・Customizable: anti-reflection coatings available
・Precision tolerance management: ±0.2mm for center thickness, ±2% for focal length

■ Specifications
・Material: Synthetic Fused Silica
・Refractive Index: 1.4585/nd
・Design Wavelength: 587.6nm
・Dimensions: Diameters from 5mm to 100mm
・Tolerances:
Diameter: +0mm/-0.1mm
Center Thickness: ±0.2mm
Focal Length: ±2%
Decentration: Within 3' (arc minutes)
・Surface Quality: MIL 60-40 standard

■ Applications
・Telescopes and binoculars
・Laser systems
・Cameras and illumination systems
・Door scopes and flashlights

About SUGITOH OPTICAL (THAILAND) CO., LTD.Located in Samut Sakhon, Thailand, SUGITOH OPTICAL (THAILAND) CO., LTD. specializes in the production of optical components powered by advanced Japanese technology. Its high-quality lenses are trusted by customers domestically and internationally, serving diverse fields such as industrial and research applications.

For more information, download the PDF or contact us directly.