Last Updated： Aggregation Period:Jul 16, 2025～Aug 12, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jul 16, 2025～Aug 12, 2025
This ranking is based on the number of page views on our site.
Last Updated： Aggregation Period:Jul 16, 2025～Aug 12, 2025
This ranking is based on the number of page views on our site.
1～15 item / All 18 items
Midopt Long Pass Filter
A long pass filter transmits light with wavelengths longer than visible light and near-infrared light, while blocking shorter wavelengths. Primarily used in monochrome image processing applications, the long pass filter can enhance contrast, resolution, and color while maximizing the brightness of the surroundings of the inspected or monitored object.
Steep cutoff (laser wavelength <0.2%) - high blocking performance - high transmittance.
The Nanoedge long pass filter is a high-performance hard coat filter that features a steep edge transition (less than 0.2% of the laser wavelength) at a specific wavelength, allowing it to transmit longer wavelengths while reflecting shorter wavelengths, thus enabling spectral separation. In particular, in Raman spectroscopy, it is necessary to separate Rayleigh scattered light (laser wavelength) from weak Raman scattered light, and the steep edge transition and high blocking performance make it easy to measure Raman spectra.
High-performance hard coat filter with excellent edge steepness, high blocking performance, and high transmittance.
- Excellent edge steepness: Edge steepness < 0.2% @ laser wavelength, compatible with low wavenumber Raman from several tens of cm-1 - High blocking performance: OD > 6 - High transmittance: Average transmittance > 90%, capable of detecting weak Raman scattered light - High durability: Usable for long periods In addition to Raman spectroscopy, it is ideal for integration into optical measurement systems such as confocal microscopy systems. We also accommodate a wide range of custom orders, prototypes, and OEM requests, so please feel free to consult with us.
High-performance hard coat filter with excellent edge steepness, high blocking performance, and high transmittance.
- Excellent edge steepness: Edge steepness < 0.5% @ laser wavelength - High blocking performance: OD > 6 - High transmittance: Average transmittance > 90%, detectable even with weak Raman scattered light - High durability: Usable for long periods In addition to Raman spectroscopy, it is ideal for integration into optical measurement systems such as confocal microscope systems. We also offer a wide range of custom, prototype, and OEM solutions beyond standard products, so please feel free to consult with us.
High-performance hard coat filter with excellent edge steepness, high blocking performance, and high transmittance.
- Excellent edge steepness: Edge steepness ~1.25% @ laser wavelength - High blocking performance: OD > 6 - High transmittance: Average transmittance > 90%, detectable even with weak Raman scattered light - High durability: Usable for long periods In addition to Raman spectroscopy, it is ideal for integration into optical measurement systems such as confocal microscope systems. We also offer a wide range of custom, prototype, and OEM options beyond standard products, so please feel free to consult with us.
High-performance hard coat filter with excellent edge steepness, high blocking performance, and high transmittance.
- Incident angle: 0 to 2° - Excellent edge steepness: Compatible with low-frequency Raman from several tens of cm⁻¹ - High blocking performance: OD > 6 - High transmittance: Average transmittance > 90%, detectable even with weak Raman scattered light - High durability: Usable for long periods In addition to Raman spectroscopy, it is ideal for integration into optical measurement systems such as confocal microscopy systems. We also offer a wide range of custom, prototype, and OEM options beyond standard products, so please feel free to consult with us.
High blocking performance, high transmittance high-performance hard coat filter.
- High transmittance: Average transmittance > 90%, capable of detecting weak Raman scattered light - High reflectance: Average reflectance > 90% - High durability: Usable for long periods In addition to Raman spectroscopy, it is ideal for integration into optical measurement systems such as confocal microscope systems. We also offer a wide range of custom, prototype, and OEM options beyond standard products, so please feel free to consult with us.
Steep cutoff (laser wavelength <0.5%) • High transmittance • Wide blocking range
The ultra steep long pass filter is a high-performance hard-coated filter with high transmission rates and a wide blocking range. It features a steep edge transition (less than 0.5% of the laser wavelength) at a specific wavelength, allowing it to transmit longer wavelengths while reflecting shorter wavelengths, enabling spectral separation. In particular, in Raman spectroscopy, it is necessary to separate Rayleigh scattered light (laser wavelength) from weak Raman scattered light, and the steep edge transition and high blocking performance make it easy to measure Raman spectra.
