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    Polarizer

    polarizer,rocoes

    Precision Linear Optical Polarizers & Polarizing Filters

    Precision optical polarizers (also known as polarizing filters or linear polarization optics) are engineered optical components that selectively transmit light waves of a specific polarization state while blocking or reflecting orthogonally polarized light components.

    Functions:
    Constructed by laminating high-dichroic polarizing thin films between optical glass substrates or applying wire-grid micro-patterning/dielectric coatings on glass. Polarizers allow light oscillating along a single axis to pass through while attenuating cross-axis light. By aligning two linear polarizers in sequence and adjusting their relative rotation angle (0° to 90° cross-polarization), system light transmittance can be smoothly controlled from peak transmission down to near extinction (0% to ~38% total unpolarized throughput), eliminating unwanted glare, reducing surface reflections, and enhancing image contrast.

    Applications:
    Glare-suppression illuminators
    Polarimetric measurement instruments
    Stress/strain optical inspection equipment
    Liquid crystal display (LCD) backlight modules
    Professional photography and camera lens setups
    Automated Optical Inspection (AOI) vision systems

       polarizer,rocoes

    ITEM NO: PL

    Spectral Characteristics

    Tave=38 +/-2% @ 400-800nm

    Physical Characteristics

    2.5mm

    Round: Dia48, Dia50mm

    Suggested use environment:

            

    Temperature: -20~60°C

            

    Humidity: 10~45%RH
    Information and Notes

    1. Precision optical polarizers are manufactured by laminating high-dichroic polarizing films between high-flatness optical glass substrates or depositing micro-wire-grid structures to achieve high extinction ratios and high damage thresholds.

    2. Transmittance for unpolarized light reaches up to 38%–42% for a single linear polarizer. Using two polarizers in a crossed configuration (90° relative rotation) enables variable light attenuation down to near complete extinction (OD3+).

    3. Optical glass encapsulation protects the internal polarizing layer against ambient humidity, thermal degradation, and mechanical abrasion, ensuring long-term optical performance.

    4. Transmittance and polarization efficiency curves reflect actual physical sample measurement data captured at normal incidence (0° angle of incidence) and are subject to minor production tolerances within engineering limits.

    5. Custom dimensions, mounted frames, and anti-reflection (AR) outer surface coatings are available upon request to reduce secondary reflections.

    6. Explore related products and technical solutions:

      
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