
Analyzer, Testing Equipment
61-6930-21 Optical Window With Anti-Reflection Coating φ15mm Thickness 2mm WBMA-15C02-10-550
Product Description
Product Model: 61-6930-21Product Brand: SIGMAKOKI CO., […]
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Product Details
Product Model: 61-6930-21
Product Brand: SIGMAKOKI CO., LTD.
Features
- A high quality window ***d to allow light to pass through the inside of a vacuum vessel or the other side of a partition wall.
- Since the transmittance is increased by an anti-reflection film coat, it can be ***d as a window for observation of a sample or a window for irradiation of a laser.
- By applying an anti-reflection film coat of dielectric multilayer film, reflection of 4% glass surface is kept below 1%.
- Since high-quality materials are ***d, the image is not distorted or the laser beam is not diff***d due to the transmission of glass.
- The angle of the transmitted beam does not change when the window plate is inserted vertically in the laser path.
- * When a laser with a large aperture is ***d, very slight interference fringes may be observed in the luminance distribution of transmitted light.
- Transmittance loss may be slightly greater when using at wavelengths other than the specified wavelength range.
- * Transmittance may be reduced when using at a large incidence angle.
Spec
-
[
common specification]
- Material: BK7
- Substrate surface accuracy: λ/10
- Parallelism: <5″
- Coating: Dielectric volume multi-layered reflective prevention film
- Incident angle: 0°
- Laser durability: 4J/cm2 (pulse width 10ns, Repeat frequency 20Hz)
- Scratch - dig: 40?20
- Effective diameter: 90% of the outer diameter
- [Individual specification]
- Reflective prevention film coat wavelength region: 400 - 700nm
- Outer diameter φD: φ15mm
- Thickness t: 2mm
- RoHS conform product
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