Doublet Lens Insulation Filter Glass Coating Glass

10 month ago

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12 month

Product details

OEM CPL/PL glass filter plate with thread mount

CPL (Circular Polarizing Filter) and PL (Polarizing Filter) glass filters are essential optical components, mainly used to eliminate unwanted glare, reduce reflections from non-metallic surfaces, enhance color saturation and improve image contrast. Made of Transparent Glass Windiow, they are widely applied in professional imaging, industrial detection and various optical equipment, with easy thread mount installation and full OEM customization available.

Difference Between PL (Polarizing Filter) & CPL (Circular Polarizing Filter)

- Working Principle: PL uses a linear polarizing film to block polarized light in a single direction; CPL adds a quarter-wave plate to convert linear polarized light into circular polarized light, avoiding light interference.

- Application Scenarios: PL is suitable for simple optical devices (e.g., basic cameras, industrial detectors) and non-autofocus systems; CPL is ideal for modern cameras, camcorders, and autofocus/auto-exposure equipment, as it does not affect the camera’s internal metering and focusing systems.

- Compatibility: PL may cause incorrect metering or focusing in autofocus cameras; CPL is fully compatible with autofocus and auto-exposure systems, with wider applicability.

Size of glass	12mm~198mm or OEM as needed
Mount	P0.5/0.75mm
Mount with screw	M25.5~M58

Coating Filter Glass/Optical Colored Filter Glass

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Haian Subei Optical Glass Factory

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Main Product: optical filter glass, optical lens, optical prism, borosilciate window pyrex sheet, ar glass lens , transparent glass window quartz sheet

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