CIRCULAR, SQUARE AND RECTANGULAR WINDOWS - Tower Optical - #1

Text version of the page

20 561-740-2525 • Fax 561-740-2518 sales@TowerOptical.com • www.TowerOptical.com Cage Code: 1N2U3 SDVO-SB ITAR Compliant Windows and Mirrors BK7 grade A optical glass, Standard WB11 and High WB12 UV grade fused silica, High WB22 Model No. Dia mm Thick Price $ Model No. Dia mm Thick Price Model No. Dia mm Thick Price $ WB11-005 5.0 2.0 12 WB12-005 5.0 2.0 31 WF22-005 5.0 2.0 39 WB11-010 10.0 2.0 18 WB12-010 10.0 2.0 39 WF22-010 10.0 2.0 45 WB11-012 12.5 2.0 19 WB12-012 12.5 6.0 40 WF22-012 12.5 6.0 52 WB11-020 20.0 2.0 21 WB12-020 20.0 6.0 52 WF22-020 20.0 6.0 64 WB11-025 25.0 2.0 25 WB12-025 25.0 6.0 62 WF22-025 25.0 6.0 78 WB11-038 38.0 4.0 29 WB12-038 38.0 10.0 84 WF22-038 38.0 10.0 130 WB11-050 50.0 4.0 39 WB12-050 50.0 10.0 151 WF22-050 50.0 10.0 315 Windows are used to isolate different physical environments while allowing light to pass. The selection of a window should consider the properties of the different optical materials, transmission, wavelength range, and resistance to the environment. Tower offers a wide range of materials and a variety of antireflecting coatings that can be deposited on the windows. Tower Optical manufactures windows from BK7, UV grade fused silica and sapphire. Other materials are available on a custom basis. In addition, we offer three different quality standards as described below. Contact factory for info on sapphire windows. Specifications Standard Grade High Grade Laser Grade High Grade Material BK7 grade A BK7 grade A UV fused silica sapphire Dimensional tolerance +0.0/-0.1 mm +0.0/-0.1 mm +0.0/-0.1 mm ±0.1 mm Flatness (TWF)
/2 @ 632.8 nm
/10 @ 632.8 nm
/10 @ 632.8 nm
/4 per 25.4mm Surface quality 40-20 Scratch-Dig 20-10 Scratch-Dig 20-10 Scratch-Dig 40-20 Scratch-Dig Thickness tolerance ±0.2 mm ±0.2 mm ±0.2 mm ±0.1 mm Parallelism < 1 arc minute < 10 arc seconds < 10 arc seconds <30 arc seconds Bevel 0.2 mm x 45° 0.2 mm x 45° 0.2 mm x 45° — Mirrors have one surface with a highly reflective coating, usually aluminum or silver. Most mirrors for optical applications are called first surface types since the coating is on the front surface thereby eliminating the optical properties of the glass from affecting the incident or reflected light. The rear surface is usually fine ground. All of the following mirrors have a protected aluminum coating applied to the front surface. Specifications Standard grade High grade Material BK7 grade A BK7 grade A or fused silica Dimensional tolerance +0.0/-0.1 mm +0.0/-0.1 mm Flatness:
/5 @ 632.8 nm
/10 @ 632.8 nm Surface quality 40-20 Scratch-Dig 10-5 Scratch-Dig Thickness tolerance ±0.2 mm ±0.2 mm Parallelism < 3 arc minutes < 3 arc minutes BK7 grade A optical glass, Standard MB11 and High MB12 UV grade fused silica, High MF22 Model No. Dia mm Thick Price $ Model No. Dia mm Thick Price $ Model No. Dia mm Thick Price $ MB11-010 10.0 2.0 20 MB12-010 10.0 2.0 36 MF22-010 10.0 2.0 46 MB11-012 12.5 2.0 20 MB12-012 12.5 6.0 36 MF22-012 12.5 6.0 53 MB11-020 20.0 2.0 23 MB12-020 20.0 6.0 46 MF22-020 20.0 6.0 66 MB11-025 25.0 2.0 26 MB12-025 25.0 6.0 56 MF22-025 25.0 6.0 79 MB11-038 38.0 4.0 30 MB12-038 38.0 10.0 63 MF22-038 38.0 10.0 254 MB11-050 50.0 4.0 40 MB12-050 50.0 10.0 122 MF22-050 50.0 10.0 304