Analyzer, Testing Equipment
61-6947-96 ［Discontinued］Reflective ND Filter (Aluminum Type) VNDA-90C1.5
Product Description
Product Model: 61-6947-96Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6947-96
Product Brand: SIGMAKOKI CO., LTD.
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 ***d 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 ca*** 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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