Elliptical Beamsplitters can be conveniently and accurately installed in various rounded lens tube, which can save space and produce a round spot. Tuniu Optics provide elliptical plate Beamsplitters with front surface coatings and beamsplitting and rear side coatings with various types of AR coatings to suit your application.
Note: This series is intended for unpolarized light splitting only. For intensity splitting of polarized light (partially polarized, linearly polarized, circularly polarized, elliptically polarized), use depolarizing beam-splitting prisms.
| Materia | H-K9L Optical Glass | Transmission Wavefront Error | ＜λ/4@633 nm |
| Parallelism | ＜30 arcsec | Surface Quality | 40-20 |
| Clear Aperture | 90% | Minor Axis Tolerance | + 0.0/ -0.1 mm |
| Thickness | 1 mm ± 0.1 mm | Bevel | Protective Bevel 0.2~0.5 mm x 45° |
| Angle of Incidence (AOI) | 45° Design | Coating | S1 BS Coating: R/T 50: 50 ± 10%(AVG of Designed Bandwidth) S2 AR Coating: Ravg＜1%(AVG of Designed Bandwidth) |
Model
| Major Axis, mm | Minor Axis, mm | Wavelength, nm | R/T |
| 17.68 35.36 70.71 | 12.5 25 50 | 350~700, 700~1100, 900~1700 | 50R/50T |