Selección de longitud de onda LiDAR
Common LiDAR wavelengths include 850nm, 905nm, 940nm, and 1550nm. Match the filter to the emitter line, detector response, and ambient-light rejection target.
Filtros ópticos LiDAR para 850, 905, 940 y 1550nm
Compare filtros LiDAR para 850, 905, 940 y 1550nm por longitud de onda central, FWHM, profundidad de bloqueo y estabilidad térmica. Revise parámetros antes de solicitar cotización para sensores de distancia o mapeo 3D.
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Cómo elegir
Haga coincidir el CWL del filtro con la longitud de onda del láser o emisor, luego elija el FWHM según la tolerancia de la fuente y el rechazo de luz ambiental. Confirme AOI, estabilidad térmica, profundidad de bloqueo, tamaño de apertura y restricciones del encapsulado del sensor.
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Filtros para aplicaciones LiDAR
Las longitudes de onda principales para LiDAR son 905nm y 1550nm, con 850nm y 940nm también utilizadas en aplicaciones específicas. Los filtros paso banda LiDAR de OPTOStokes ofrecen alta transmitancia y bloqueo profundo fuera de banda para mediciones de distancia fiables en vehículos autónomos, navegación UAV y sistemas de mapeo 3D. Los filtros de recubrimiento duro de esta sección mantienen un rendimiento estable en amplios rangos de temperatura de operación.
LiDAR Bandpass Filters
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| Model | Longitud de onda central (nm) | Transmitancia | Ancho a mitad de altura (nm) | Densidad óptica | Note |
|---|---|---|---|---|---|
| STO-BP850/10 | 850±2 | T≥90% | 10±2 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP850/30 | 850±3 | T≥90% | 30±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP850/50 | 850±5 | T≥90% | 50±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP905/10 | 905±2 | T≥90% | 10±2 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP905/30 | 905±3 | T≥90% | 30±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP905/50 | 905±5 | T≥90% | 50±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP940/10 | 940±2 | T≥90% | 10±2 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP940/30 | 940±3 | T≥90% | 30±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP940/50 | 940±5 | T≥90% | 50±3 | OD≥3@300-1100 | Other parameters can be customized |
| STO-BP1550/10 | 1550±2 | T≥90% | 10±2 | ODave≥4@600-2000 | Other parameters can be customized |
| STO-BP1550/30 | 1550±3 | T≥90% | 30±3 | ODave≥4@200-1700 | Other parameters can be customized |
| STO-BP1550/50 | 1550±5 | T≥90% | 50±3 | ODave≥4@200-1700 | Other parameters can be customized |
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| Model | AOI | Wavelength (nm) | Reflectivity | Coating Type | Note |
|---|---|---|---|---|---|
| 850nm-reflector | 45-deg | 800-900 | Rav>99% | Hard coating | Other parameters can be customized |
| 905nm-reflector | 45-deg | 890-920 | Rave>99% | Hard coating | Other parameters can be customized |
| 940nm-reflector | 45-deg | 900-980 | Rave>99% | Hard coating | Other parameters can be customized |
| 1550nm-reflector | 45-deg | 1500-1600 | Rave>99% | Hard coating | Other parameters can be customized |
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| Model | AOI | Wavelength (nm) | Transmitancia | Coating Type | Note |
|---|---|---|---|---|---|
| 850nm-window glass | 0 | 800-900 | Tave≥99% | Hard coating | |
| 905nm-window glass | 0 | 890-920 | Tave≥99% | Hard coating | |
| 940nm-window glass | 0 | 900-980 | Tave≥99% | Hard coating | |
| 1550nm-window glass | 0 | 1500-1600 | Tave≥99% | Hard coating |
Notas técnicas relacionadas
Bloqueo para uso exterior
Outdoor LiDAR often needs strong solar background suppression. Check the blocking range around visible and NIR background, not only peak transmission.
FWHM y deriva térmica
A narrow passband improves rejection but leaves less room for source drift, angle shift, and temperature variation.
Preguntas frecuentes
¿Qué longitudes de onda son comunes para filtros LiDAR?
Common LiDAR wavelengths include 850nm, 905nm, 940nm, and 1550nm depending on the emitter, detector, and safety requirements.
¿Por qué es importante el bloqueo en LiDAR?
Strong out-of-band blocking reduces ambient sunlight and background noise, improving signal-to-noise ratio.
¿Se pueden suministrar filtros LiDAR para módulos compactos?
Yes. Custom sizes, thicknesses, and coating targets can be produced for compact sensor modules and OEM assemblies.
Quality & Compliance
Documentation-ready optical filter supply
For OEM programs, laboratory instruments, and industrial systems, OPTOStokes keeps quality, material compliance, and engineering support visible from the start of supplier evaluation.
Quality system
ISO 9001 managed production
Process control, inspection records, and repeatable coating workflows for production optical components.
Material compliance
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Compliance documentation can be prepared for qualified projects and regulated supply chains.
Factory-direct
Custom coating and dimensions
Wavelength, FWHM, substrate, AOI, size, and mounting requirements can be reviewed with engineering.
Procurement ready
Quote and data review
Share target wavelength, blocking level, transmittance, and drawing requirements for a focused quote.
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