40-20 Scratch / Dig Pellicle Beamsplitters
from National Photocolor Corp.
NPC Standard Pellicle Frames are stocked in 1",2",3",4",5" and 6" circular rings, plus 5"x7" rectangles. Top surfaces are beveled. The frame is black anodized, then lapped to create a flat at the inner edge. The membrane is then stretched over the flat and firmly adhered to the beveled area. The... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Clear Aperture: 25.4
- Diameter: 34.92
- Thickness: 4.76
from Edmund Optics Inc.
No Ghost Images from Second Surface Reflections. No Chromatic Aberration with Converging Beams. No Change in Optical Path Length. Pellicle Beamsplitters are very thin nitrocellulose membranes bonded to lapped aluminum frames that feature no ghost images from second surface reflections. To ease... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Clear Aperture: 25.4
- Diameter: 34.92
- Thickness: 0.0020
from Newport Corporation
The PBS-2C Pellicle Beamsplitter is 74.9 mm in diameter with a 51.6 mm Clear Aperture in a 12.7 mm thick housing. This coated pellicle provide equal reflectance and transmission over the 375-2400 nm range by means of a neutral, semi-absorbing coating. The R/T curves below show average values,... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Clear Aperture: 51.6
- Diameter: 74.9
- Thickness: 12.7