BK7 Glass Neutral Density Filters Datasheets

400nm to 2000nm Neutral Density Filters
from Gurley Precision Instruments

Wide selection of neutral density filters [See More]

  • Substrate Material: BK7 glass; Corning 7059
  • Filter Shape: Circular
  • Neutral Density Filter Type: Reflective
  • Filter Diameter, Side Length, or Rectangular Length: 25.4
Circular Step Neutral-Density Filter -- CSND-1-100.0M
from CVI Laser Optics

Circular step neutral-density filters are used for calibrating illumination systems from 370 nm to 2600 nm. The filter consists of a spectrally flat neutral density metallic coating deposited on one surface of a circular glass substrate. The density variation takes place in discrete steps as the... [See More]

  • Substrate Material: BK7 glass
  • Filter Shape: Circular
  • Neutral Density Filter Type: Variable
  • Filter Diameter, Side Length, or Rectangular Length: 100
Mounted ND Filter N-BK7 0.04-2.0 Optical Density -- NT46-504
from Edmund Optics Inc.

Edmund Optics now offers TECHSPEC ® circular stepped density filters. These filters are available with 11 steps and are made from BK7 or Fused Silica substrates for visible and UV light applications. The circular filters are also available mounted. The durable anodized aluminum mount has an... [See More]

  • Substrate Material: BK7 glass
  • Surface Quality: 60-40 Scratch / Dig
  • Optical Density: 0.0400 to 2
Circular Variable Metallic Neutral Density Filters
from Newport Corporation

The circular variable ND filters allow users to finely tune the power of a transmitted beam, or to split a beam with an arbitrary power ratio easily by simply rotating the filter. Filter OD varies continously with rotation angle. Dual purpoased as variable beamsplitter. Withstands moderate energy. [See More]

  • Substrate Material: BK7 glass; UV grade Fused Silica; N-BK7
  • Filter Diameter, Side Length, or Rectangular Length: 127
  • Filter Shape: Circular
  • Optical Density: 0.0500 to 2