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Product Parameters
| Specs | Bandpass Filter |
| Dimension | Custom-designed |
| CWL(Center wavelength) | Custom-designed |
| Full width at half maximum | Custom-designed |
| CWL tolerance | ±2nm |
| FWHM tolerance | ±2nm |
| Surface quality | 20-10 S/D |
| Material | Custom-designed |
| Incident angle | ±3° |
| Specs | Notch Filter | ND (Neutral Density) Filter |
| Dimension | Custom-designed | |
| CWL | Custom-designed | |
| Average transmission in passband | ＞90% | |
| Reflectance | ＞99.5% | |
| Cutoff | OD≥6 | |
| Surface quality | 20-10 S/D | |
| Specs | LWP (Long Wave Pass) Filter | Dichroic Filter | ||
| Characteristics | Transmits long waves and cuts off short waves | High transmittance at specific wavelengths; High reflectivity at cutoff wavelengths. | ||
| Dimension | Custom-designed | |||
| CWL(Center wavelength) | Custom-designed | |||
| Transmission band | Custom-designed | |||
| Cutoff band | Custom-designed | |||
| Blocking | ≥OD6 | |||
| Surface quality | 20-10 S/D | |||
| Incident angle | 0° | |||
Product Introduction
Optical filters are optical components that can not only attenuate light intensity but also alter spectral composition or restrict planes of vibration. The working principle of an optical filter primarily relies on physical phenomena such as interference, diffraction, absorption, and reflection of light. By precisely designing and adjusting parameters such as the film material, thickness, and refractive index within the filter, precise control over specific wavelengths of light can be achieved. It is commonly used in optical paths as a planar glass or plastic device that selectively transmits different wavelengths of light through dyeing or interference coatings. Optical filters are applied in numerous fields, including fiber-optic communications, industrial lasers, automation equipment, biometric identification, medical instruments and devices, and beauty equipment. Rising-EO supports the customization of the following types of optical filters:
Bandpass Filters: These are used to selectively transmit a portion of the spectrum while blocking other wavelengths.
LWP (long wave pass) Filters: These transmit long wavelengths and block short wavelengths.
SWP (short wave pass) Filters: These transmit short wavelengths and block long wavelengths.
Dichroic Filters: These exhibit high transmittance for specific wavelengths and high reflectance for blocking wavelengths.
Notch Filters: These selectively block a portion of the spectrum while transmitting other wavelength bands.
ND (neutral density) Filters: These uniformly reduce transmittance across part of the spectral range by absorbing or reflecting a portion of the light energy to attenuate it.
Product Parameters
| Specs | Bandpass Filter |
| Dimension | Custom-designed |
| CWL(Center wavelength) | Custom-designed |
| Full width at half maximum | Custom-designed |
| CWL tolerance | ±2nm |
| FWHM tolerance | ±2nm |
| Surface quality | 20-10 S/D |
| Material | Custom-designed |
| Incident angle | ±3° |
| Specs | Notch Filter | ND (Neutral Density) Filter |
| Dimension | Custom-designed | |
| CWL | Custom-designed | |
| Average transmission in passband | ＞90% | |
| Reflectance | ＞99.5% | |
| Cutoff | OD≥6 | |
| Surface quality | 20-10 S/D | |
| Specs | LWP (Long Wave Pass) Filter | Dichroic Filter | ||
| Characteristics | Transmits long waves and cuts off short waves | High transmittance at specific wavelengths; High reflectivity at cutoff wavelengths. | ||
| Dimension | Custom-designed | |||
| CWL(Center wavelength) | Custom-designed | |||
| Transmission band | Custom-designed | |||
| Cutoff band | Custom-designed | |||
| Blocking | ≥OD6 | |||
| Surface quality | 20-10 S/D | |||
| Incident angle | 0° | |||
Product Introduction
Optical filters are optical components that can not only attenuate light intensity but also alter spectral composition or restrict planes of vibration. The working principle of an optical filter primarily relies on physical phenomena such as interference, diffraction, absorption, and reflection of light. By precisely designing and adjusting parameters such as the film material, thickness, and refractive index within the filter, precise control over specific wavelengths of light can be achieved. It is commonly used in optical paths as a planar glass or plastic device that selectively transmits different wavelengths of light through dyeing or interference coatings. Optical filters are applied in numerous fields, including fiber-optic communications, industrial lasers, automation equipment, biometric identification, medical instruments and devices, and beauty equipment. Rising-EO supports the customization of the following types of optical filters:
Bandpass Filters: These are used to selectively transmit a portion of the spectrum while blocking other wavelengths.
LWP (long wave pass) Filters: These transmit long wavelengths and block short wavelengths.
SWP (short wave pass) Filters: These transmit short wavelengths and block long wavelengths.
Dichroic Filters: These exhibit high transmittance for specific wavelengths and high reflectance for blocking wavelengths.
Notch Filters: These selectively block a portion of the spectrum while transmitting other wavelength bands.
ND (neutral density) Filters: These uniformly reduce transmittance across part of the spectral range by absorbing or reflecting a portion of the light energy to attenuate it.
