optical glasses

Windows

RWN ● Rectangular Windows
　　RWN series are rectangular windows, designed for a wide variety of optical windows and beamsplitting applications (please turn to the “Beamsplitters” chapter for more details). By cutting stock substrates, we can quickly supply other rectangular dimensions. Dielectric and metal coatings can be deposited on RWN series rectangular windows.
·High energy AR coatings available
·Beamsplitter coatings
·Partial reflective coatings
　

Specifications

Substrate Materia
BK7 glass
UV grade fused silica

Transmitted Wavefront
λ/4 @ 632.8nm

Surface Quality
40-20

Dimension Tolerance
+ 0.00mm, - 0.20mm

Thickness Tolerance
± 0.20mm

Wedge Tolerance
See the table

Chamfer
0.35mm x 45°

Clear Aperture
≥85% of central Area
　

Rectangular Windows

	5′	1′	30 ″
L x W x T (mm)	Part No.	Part No.	Part No.

12.7 x 6.35 x 3.18	RWN101	RWN201	RWN301
20.0 x 10.0 x 6.35	RWN102	RWN202	RWN302
28.6 x 14.3 x3.18	RWN103	RWN203	RWN303
35.0 x 20.0 x 9.53	RWN104	RWN204	RWN304
40.0 x 35.0 x 9.53	RWN105	RWN205	RWN305
50.0 x 40.0 x 12.7	RWN106	RWN206	RWN306

Note: Substrates wedge tolerance less than 10 seconds for other sizes are available upon requests.


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