宇宙・天文光学EXPO K-48
1: Solar spectrum analogue filter: high transmittance, perfect control of mismatch factor and current.
2: Narrow band filter: accurate wavelength positioning, high transmittance, perfect cut-off depth,unique halo-control function.
3: Fluorescent filter: low spontaneous fluorescence and high signal-to-noise ratio.
4: Cut-off filter: high transmittance, wide cut-off range, and accurate wavelength.
Parameter
Central wavelength: 656nm
Half bandwidth: 7nm
Peak transmittance: T-peak<85%
Cut off range: 300-1100nm
Cut off depth: OD2-OD7 (customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
Filter substrate: optical glass
Filter thickness: 2 inches×1.85mm;
Bandwidth: 3nm
Cut off depth: OD6-OD7 (customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
0°incidence
Central wavelength: 505+/- 5nm
Bandwidth: 25nm
Cut off range: 400nm-750nm
Cut off depth: OD6-OD7 (customizable)
Transmittance: T-peak>90%
Parameter
Peak transmittance: T-peak>95%
Cut off range: 300-1050nm
Cut off depth: OD6-OD7(customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
Transmittance: (486.1nm, 496nm, 501nm) O-III>90%, (656.3nm) Ha>80%
Cut off range: 200-460nm, 544-630nm, 680-1000nm
Cut off depth: OD5 Tmax<0.2% Tave<0.1%
Thickness: 1.85mm
Shape: λ/ 4
Glass material: Schott B270
Fineness: 60/40 (American standard MIL-O-13830)
Material: The filter frame is made of high-quality aviation aluminum, precision CNC integrated molding.
Process: fine sand blasting and anodic treatment;extinction treatment to the frame
Polishing: optical high-precision double-sided polishing, ensuring parallelism is higher than 30 ""and shape is 1/4 λ to control halo
1: Solar spectrum analogue filter: high transmittance, perfect control of mismatch factor and current.
2: Narrow band filter: accurate wavelength positioning, high transmittance, perfect cut-off depth,unique halo-control function.
3: Fluorescent filter: low spontaneous fluorescence and high signal-to-noise ratio.
4: Cut-off filter: high transmittance, wide cut-off range, and accurate wavelength.
Parameter
Central wavelength: 656nm
Half bandwidth: 7nm
Peak transmittance: T-peak<85%
Cut off range: 300-1100nm
Cut off depth: OD2-OD7 (customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
Filter substrate: optical glass
Filter thickness: 2 inches×1.85mm;
Bandwidth: 3nm
Cut off depth: OD6-OD7 (customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
0°incidence
Central wavelength: 505+/- 5nm
Bandwidth: 25nm
Cut off range: 400nm-750nm
Cut off depth: OD6-OD7 (customizable)
Transmittance: T-peak>90%
Parameter
Peak transmittance: T-peak>95%
Cut off range: 300-1050nm
Cut off depth: OD6-OD7(customizable)
Fineness: 60/40
Shape: λ/ 4
Parallelism: 30 seconds
Parameter
Transmittance: (486.1nm, 496nm, 501nm) O-III>90%, (656.3nm) Ha>80%
Cut off range: 200-460nm, 544-630nm, 680-1000nm
Cut off depth: OD5 Tmax<0.2% Tave<0.1%
Thickness: 1.85mm
Shape: λ/ 4
Glass material: Schott B270
Fineness: 60/40 (American standard MIL-O-13830)
Material: The filter frame is made of high-quality aviation aluminum, precision CNC integrated molding.
Process: fine sand blasting and anodic treatment;extinction treatment to the frame
Polishing: optical high-precision double-sided polishing, ensuring parallelism is higher than 30 ""and shape is 1/4 λ to control halo