640nm narrow bandpass filter
Item#:NBPF640/10
Price:$100
CWL:640nm
Type: narrow bandpass filter
FWHM:10nm
Specifications:
Substrate material: Float glass
Dimension: Ø12.5x6(mounted),Custom
Angle of incidence: 0
Center wavelength: 640nm(+2/-2nm)
Full width at half maximum: 10nm(+2/-2nm)
Min. transmission: >50% @ 640nm,cut-off from 200nm to 1100nm(typical),T<0.01%
Min. clear aperture: >85% of diameter
Note: Other dimension and specification are available upon request.
Knowledge & Tips
Mega-9 Optical produces high performance optical filters in large volumes or single-piece quantities for all requirements of spectral light measurement and control.
1. An optical filter comprising: a first optical element including a first reflective element for receiving light and reflecting a first wavelength band of the light centered at a first reflective wavelength, the first reflective element characterized by a first reflective filter function; and a second optical element, optically connected to the first a second optical element to receive the reflected first wavelength band of the light, including a second reflective element for reflecting a second wavelength band of the light centered at a second reflection wavelength, the second reflective element characterized by a second reflective filter function, whereby at least one of the first reflective filter function and the second reflective filter function is not substantially flat over a substantial portion of the respective first or second reflective filter function, and the first wavelength band and the second wavelength band overlap spectrally. 21. The optical filter of claim 1 further includes a heating element for varying the temperature of the first optical element to tune the first reflective element to reflect the selected first wavelength band. 22. The optical filter of claim 1, wherein the at least one of the first and second optical waveguides has outer dimensions along perpendicular axial and transverse directions, a first portion of the at least one of the first and second optical waveguides having an outer dimension being at least 0.3 mm along said transverse direction, at least a portion of the first portion having a transverse cross-section which is continuous and comprises a substantially homogeneous material; and the at least one of the first and second optical waveguides being axially strain compressed so as to change the at least one of the first and second reflection wavelengths. 23. The optical filter of claim 22, wherein both of the first and second optical waveguides is tunable to change each of the respective first and second reflection wavelengths.
Mega-9 Optical supplies advanced 640nm narrow bandpass filter,high quality,fast delivery,tel:86-21-57784688,Mega-9 Optical custom-designs and produces high performance optical filters and coatings in large volumes or single-piece quantities for all requirements of spectral light measurement and control.. 640nm narrow bandpass filter, optical filters, fluorescence filter sets, astronomy, custom, interference, photolithography, spectroscopy, microscopy, flow cytometry, uv-ir filters, custom coatings, rejection band, curvomatic, e-commerce, analytical, raman, color enhancement, narrowband, longpass, shortpass, laser line, neutral density, thin film coatings, oem services
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