High Flatness 370x360x20mm Optical Glass Sheet

This high flatness optical glass sheet, sized 370x360x20mm, delivers uniform light transmission and excellent optical consistency. With precision flatness and stable optical properties, it serves as an ideal sealing window, protective sight glass and observation cover for optical instruments, industrial vision inspection, laboratory equipment and medical devices.

Product Parameters

Key Features

• High Flatness Surface – Precision polished to superior flatness with no optical distortion, ensuring accurate light transmission without refractive deviation for precision imaging.
• Uniform Light Transmission – Consistent optical properties across the entire sheet surface, critical for machine vision inspection systems and optical instrument windows.
• Optical Consistency – Stable and repeatable optical performance with high uniformity, suitable for spectrum and transmittance testing as a reference substrate.
• Chemical Resistance – Resistant to common weak acids and alkalis encountered in laboratory and industrial environments, maintaining surface quality over time.
• Precision Tolerance – Tight dimensional control from precision machining for reliable fit in optical equipment assemblies and sealed window applications.

Applications

1. Optical Instruments

Sealing window for optical equipment viewfinders and light paths, blocking dust and moisture without distorting light transmission to ensure imaging and detection accuracy. Optical experiment reference substrate for spectrum and transmittance testing.

2. Industrial Automated Inspection

Protective sight glass for machine vision equipment and inspection chamber observation windows, blocking cutting fluid and dust while withstanding typical workshop corrosive conditions.

3. Laboratory Equipment

Observation cover plate for physical and chemical experiments and reaction equipment visual windows, resistant to routine weak acid and alkali immersion.

4. Medical & Precision Equipment

Instrument protective sight window and detection equipment transparent cover plate, meeting cleanroom and dust-free operating environment requirements.

Advantages over Ordinary Float Glass

Compared to standard float glass, this optical glass sheet offers significantly higher optical uniformity and flatness without distortion, precision tolerance machining, and stable light transmission properties free from refractive deviation. Combined with moderate chemical corrosion resistance, it is the preferred choice for precision optical and high-end equipment applications.