OPB-40S03-P 40 x 40 mm N-BK7 Square Optical Parallel Flat Window; t=3 mm Uncoated

The OPB-40S03-P is a 40 x 40 mm N-BK7 Square Optical Parallel Flat Window, boasting a thickness of 3 mm and uncoated surfaces. This optical window is sourced from OptoSigma, a reputable vendor known for its high-quality optical elements.

The window is designed with a rectangular base shape, making it suitable for a wide range of optical applications. The geometry of the window is defined by its length and width, both measuring 40 mm, and a thickness of 3 mm, providing sufficient structural integrity while maintaining a thin profile.

The material of the window is N-BK7, a type of borosilicate glass known for its excellent optical properties. This material is often used in high-precision optical systems due to its low coefficient of thermal expansion and high Abbe number. The N-BK7 used in this window is specifically from Schott, a leading manufacturer of optical glass, ensuring top-tier quality.

The window is designed to operate at a wavelength of 588 nm, making it suitable for applications that operate within this wavelength range. The window's shape is that of a thin lens, further expanding its potential applications.

Notably, the window is uncoated, meaning it does not have any anti-reflective or other coatings. This may be beneficial in applications where such coatings are not required or desirable. However, users should be aware of the potential for reflection at the air-glass interfaces, which can be mitigated with appropriate coatings.