LP500 장파장 필터 | 510-1200nm >85% 투과율

LP500 롱패스 필터(T>85%@510-1200nm, OD5@200-490nm)

컷온=500nm / T>85%@510-1200nm // OD5@200-490nm / 직경 12.5mm(미장착)

$50.00

LP500 롱패스 필터(T>85%@510-1200nm, OD5@200-490nm)

SO3040020

컷온 파장

컷온=500nm

전송 // 차단

T>85%@510-1200nm // OD5@200-490nm

차원

SO3040020n-d12.5u

재고 있음

$50.00

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수입 관세 및 세금

이 LP500 장파장 필터는 차단 영역보다 긴 파장을 투과시키면서 단파장 가시광선은 줄이도록 설계되었습니다. 이 필터는 더 긴 파장 신호를 가시광선 여기 또는 단파장 배경과 분리해야 하는 형광 이미징, 광학 검사 및 가시광선 대역 광학 측정 시스템에 적합합니다. 이는 더 긴 파장 방출을 더 짧은 파장 여기에서 분리하고 가시광선 배경 간섭을 줄이는 데 도움이 됩니다.

주요 사양:

파장/주요 사양: 500nm 컷온 파장
대역폭/전이 사양: 전이 특성은 사양표 참조
투과율/차단: 510-1200nm에서 T>85%; 200-490nm에서 OD5
형식/맞춤형 옵션: 직경 25.4mm 및 60x60mm, 장착 옵션으로 사용 가능

LP500 롱패스 필터(T>85%@510-1200nm, OD5@200-490nm) 제품 사양
Part Number
PN	SO3040020
Specifications
Cut-On Wavelength	500nm
Blocking Region	오디5
Filtering Mechanism	Reflective
Operating Condition
Angle of Incidence (AOI)	0 ± 3°
Operating Temperature	-40 to 90 °C
Transmitted Wavefront (RMS)	λ/2
Material & Coating
Substrate	Borosilicate Glass
Coating Method	E-Beam
Filter Construction	Single Piece
Surface Quality	40-20 Before Coating
Mechanical
Size Tolerance	+0.5mm / -0.0mm

LP500 Longpass Filter - Fluorescence Microscopy

Fluorescence Microscopy

This is the most common use. The filter acts as an "emission filter" to block the high-intensity blue or UV excitation light (e.g., 450nm or 488nm) while allowing the camera to capture the faint green or yellow fluorescence (emitted at >500nm) from markers like GFP (Green Fluorescent Protein) or FITC.

Recommended Light Sources

Blue LEDs (450nm - 485nm): Narrow spectral output that minimizes thermal noise and provides a stable, long-lasting excitation source specifically tuned for green fluorophores.
Argon-Ion Lasers (488nm): Extremely high photon density and beam coherence, allowing for deep tissue penetration and high-resolution confocal imaging.
Mercury/Xenon Arc Lamps: Broad-spectrum high intensity across UV and blue wavelengths, making them versatile for multiple fluorophores when paired with the correct excitation filter.
Laser Diodes (473nm/488nm): Compact and cost-effective alternatives to gas lasers that offer high-speed modulation capabilities for specialized imaging techniques.

LP500 Longpass Filter - Environmental Monitoring

Environmental Monitoring

Used in sensors to detect chlorophyll levels or atmospheric conditions by isolating specific bands of visible and near-infrared light.

Recommended Light Sources

Tungsten-Halogen Lamps: Provides a smooth, continuous output from the visible range through the NIR (up to 2500nm), which is essential for measuring broad atmospheric absorption bands.
Broadband White LEDs: Offers a cost-effective, low-power solution for portable sensors, providing consistent illumination across the 500–700nm range where chlorophyll activity is monitored.
Infrared (IR) LEDs: Allows for targeted sensing of atmospheric gases or moisture levels by providing high-intensity light in the NIR region (700nm+) where the LP500 has maximum transmission.
Solar Radiation (Passive Sensing): Uses natural sunlight as the source for remote sensing applications, where the LP500 filter helps isolate the "Red Edge" (approx. 700nm) used to calculate vegetation indices like NDVI.
Xenon Flash Lamps: Delivers high-energy pulses across a wide spectrum, ideal for field instruments that need to overcome high ambient background light during spot measurements.

유사 대역 통과 필터

제품 FAQ

컷온/컷오프 파장은 에지패스 필터가 빛을 투과하기 시작하거나 멈추는 전환 지점입니다. 실제 시스템에서는 어떤 파장 범위가 통과되고 어떤 범위가 감소되거나 차단되는지를 정의합니다.

차단 영역은 필터가 원치 않는 빛을 억제하도록 설계된 파장 범위입니다. 실제 시스템에서는 더 강력하거나 넓은 차단이 배경 신호, 산란광 및 검출기 간섭을 줄이는 데 도움이 됩니다.

차단 깊이 / 광학 밀도(OD)는 차단 영역에서 원치 않는 빛이 얼마나 강하게 억제되는지를 나타냅니다. 예를 들어, OD6 @ 200–1200nm는 필터가 200–1200nm 파장을 약 0.0001% 투과율로 차단하여 미광, 배경 신호 및 감지기 과부하를 줄이도록 설계되었음을 의미합니다.