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| Coad | 670088 | Substrate | UVFS | |
| Type | High-Performance Bandpass Filter | OD | abs≥5@300-659nm；avg≥6@300-659nm；abs≥3@725.5-900nm | |
| Diameter(mm) | 25.00 | Diameter Tolerance | +0.0/-0.1mm | |
| Clear Aperture | 22.0mm | Parallelism | - | |
| Thickness(mm) | 3.50 | Thickness Tolerance | +0.0/-0.1mm | |
| Surface Quality | 60-40 | Wavelength(nm) | 690 | |
| Surface Flatness | - | FWHM | - | |
| Transmittance | Tavg≥93%@668-717nm | Mechanical Housing | - | |
| Shell Diameter | - | Housing Diameter Tolerance | - | |
| Outer Shell Thickness | - | Operating Temperature | - | |
| Laser Damage Threshold | - | Transmission Wavefront Deviation | λ@633nm | |
| Coating Radial Angle | - | Coating Type | Dielectric Coating | |
| Protective Chamfer | - | AOI | 0° | |
| Coating Specifications | - | |||
LBTEK offers CHROMA high-performance bandpass filters with a diameter of 25 mm and a mechanical retaining ring. These filters allow only the center wavelength to be fully transmitted, with stopband optical densities reaching OD5 and OD6. Manufactured using magnetron sputtering coating technology, LBTEK CHROMA high-performance bandpass filters feature high transmission, deep blocking, and steep spectral edges. In applications such as fluorescence imaging, where a high signal-to-noise ratio is critical, high-performance bandpass filters effectively block stray light to reduce background noise while efficiently transmitting the fluorescence signal from the sample, thereby maximizing signal collection and achieving superior imaging results.
LBTEK offers CHROMA high-performance bandpass filters with a diameter of 25 mm and a mechanical retaining ring. The retaining ring is engraved with an arrow indicating the incident direction, ensuring correct alignment and convenient installation. Light should propagate along the arrow direction. When used at an incidence angle deviating from the design angle, the center wavelength will shift; therefore, it is recommended to operate at the specified design angle for optimal performance.
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