49-470 35.0 x 35.0 mm N-BK7 Precision Protective Flat Window; t=3 mm Uncoated

The 49-470 is a 35.0 x 35.0 mm N-BK7 Precision Protective Flat Window with a thickness of 3 mm, sourced from the reputable optical components vendor, Edmund Optics. This uncoated window is designed to provide robust protection for optical systems while minimizing optical losses.

The window is fabricated from N-BK7, a high-quality borosilicate glass known for its excellent optical properties. This material is characterized by a low coefficient of thermal expansion, making it suitable for applications involving temperature fluctuations. The window's geometry, with a width and length of 35 mm each, ensures a generous aperture for a wide range of applications.

The window's 3 mm thickness provides a balance between mechanical strength and optical performance. A thicker window offers increased durability, while a thinner one reduces optical aberrations. This window, with its 3 mm thickness, provides a good compromise between these two factors.

Notably, this window is uncoated, meaning it does not have any anti-reflective or other coatings. While coatings can enhance performance in specific applications, an uncoated window is often preferred when simplicity, cost-effectiveness, or broadband transmission are priorities.

The window's flat design ensures excellent optical quality, with minimal distortion or aberration. This makes it suitable for use in various applications, including imaging systems, beam delivery, and laser applications.