12.5 x 17.68 x 1mm NIR, Elliptical Plate Beamsplitter

Product Details Circular Profile at 45° Visible and NIR Coating Options Offered Ideal for Diffuse Axial and In-line Illumination TECHSPEC Elliptical Plate Beamsplitters maximize beamsplitting efficiency while minimizing required mounting space. These beamsplitters are ideal for diffuse axial and in-line illumination. When oriented at 45°, the beamsplitters create a circular aperture equal to the diameter of the minor axis. TECHSPEC Elliptical Plate Beamsplitters are available with either a visible or NIR 50% reflection/50% transmission beamsplitter coating and feature a high efficiency multi-layer anti-reflection (AR) coating to reduce back reflections. The beamsplitters are offered in either a 1 or 3mm thickness, in a range of major and minor axis measurements and wavelength ranges. Specifications General Type: Standard Beamsplitter Physical & Mechanical Properties Clear Aperture (%): >80 Construction: Plate Edges: Cut with 0.25mm maximum edge chip Major Axis (mm): 18.68 +0.0/-0.40 (physical length) Minor Axis (mm): 12.50 +0.0/-0.10 Parallelism (arcmin): <1 Thickness (mm): 1.00 ±0.1 Optical Properties Coating: NIR Coating Specification: Surface 1: 50R/50T (R abs ±5% @ 900nm, R avg ±10% @ 700 - 1100nm) Surface 2: R avg ≤1.0%, R abs ≤2.0% @ 700 - 1100nm Reflection/Transmission Ratio (R/T): 50/50 Substrate: Many glass manufacturers offer the same material characteristics under different trade names. Learn More N-BK7 Surface Flatness (P-V): <2λ (per inch) Surface Quality: 60-40 Wavelength Range (nm): 700 - 1100 Regulatory Compliance RoHS 2015: Compliant × Certificate of Conformance: View × Reach 247: Compliant ×