SIGMAKOKI CO., LTD.

61-6947-96 [Discontinued]Reflective ND Filter (Aluminum Type) VNDA-90C1.5

Features

  • By creating a tiny dot pattern of an aluminum deposited film and changing the area ratio of the dot pattern, a transmittance distribution is created in the filter.
  • Use to adjust the amount of light.
  • With an AR coat on the back, a high transmittance of 98% can be obtained at maximum transmission.
  • Transmittance varies in proportion to the amount of rotation.
  • (Transmittance Variable Area) * This ND filter cannot be used for laser light.
  • * Use under white or LED light.
  • * If a filter is inserted at a position that is confocal with the observed object, the dot pattern of the filter may cause it to project.
  • * Be careful when placing the dot pattern on the filter so that the image does not form.

Spec

  • [ common specification]
  • Material: BK7 or white plate
  • Both sides: Optical polishing surface
  • Parallelism: <3′
  • Adaptive wavelength: 400 - 700nm
  • Incident angle: 0 degrees
  • Coating: AL + protection membrane (backside multi-layered reflective prevention film), 0 - 45 degrees: T=0%, 45 - 315 degrees: Variable area, 315 - 360 degrees: T≒98%
  • Effective area: φ30mm<, <φ80mm
  • [Individual specification]
  • Product name: Reflective type variable type ND filter (aluminum type)
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Order No. 61-6947-96
Model No. VNDA-90C1.5
Standard price JPY: 40,000 USD: 250.74
Excange rate 1USD= 159.53JPY
Valid price in Japan
Quantity 1piece
  Discontinued
Stock in Japan -