83-473 25.0 x 25.0 mm N-BK7 Precision Protective Flat Window; t=4 mm NIR I 600-1050nm

The 83-473 is a 25.0 x 25.0 mm N-BK7 Precision Protective Flat Window with a thickness of 4 mm, specifically designed for use in the near-infrared (NIR) spectrum, covering the wavelength range of 600-1050nm. This window is sourced from the reputable optical components vendor, Edmund Optics.

The window is made from N-BK7, a popular borosilicate glass known for its excellent optical properties, making it suitable for various applications. It boasts a high refractive index and low dispersion, ensuring minimal chromatic aberration. The window's rectangular shape, with dimensions of 25.0 x 25.0 mm, provides a generous aperture, allowing for efficient light transmission.

The 83-473 is equipped with EDM NIR-I standard curve coatings on both the front and back surfaces. These coatings are designed to enhance the window's performance in the NIR spectrum, reducing reflection and increasing transmission. The coating specifications are not explicitly stated, but the 'std curve' suggests a broadband anti-reflection coating, which is typically used to maximize transmission across a wide range of wavelengths.

The window's thin lens shape further enhances its functionality. While it does not have any refractive power, its shape allows it to be used in conjunction with other optical elements to form more complex systems. This window is an excellent choice for applications that require a high-quality, NIR-transmitting optical surface.

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