420nm Longpass Filter, Hard Film Coated, High Transmission
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Ships from:
China
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Sold by:
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On FindLight:
since 2016
Description
Shandong Yanggu Constant Crystal Optics, Inc. has been a trusted name in the optical glass components industry since 2006. With a commitment to precision and quality, the company has consistently delivered products that meet the exacting standards of various optical applications. Their expertise in manufacturing is evident in their extensive range of optical components, which are crafted using advanced technology and high-quality materials.
One of their standout products is the 420nm Long Pass Filter, designed to provide superior optical performance. This filter is meticulously engineered with a hard film coating, ensuring durability and a long service life. The precision in its design is further highlighted by its wavelength accuracy and low temperature drift, achieved through advanced ion plating techniques. The filter boasts a central wavelength of 420nm ±3nm, with a cutoff wavelength ranging from 200nm to 410nm, and a cutoff rate of less than 0.05%.
The 420nm Long Pass Filter allows for a passing wavelength of 430nm to 1100nm, with an impressive transmission rate of over 95%. This high penetration rate ensures that the filter effectively allows the desired wavelengths to pass through while blocking out unwanted frequencies. The filter is available in various raw materials, including Fused Silica, B270, Float Glass, and other optical glasses, each chosen for their specific optical properties and suitability for different applications.
With a scratch-dig specification of 60/40, the 420nm Long Pass Filter guarantees a smooth and clear optical surface, enhancing its performance and reliability. The combination of high cut-off depth and exceptional material quality makes this filter an ideal choice for those seeking precision and reliability in optical filtering solutions.
420nm Longpass Filter, Hard Film Coated, High Transmission
Specifications |
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|---|---|
| Transmission Wavelength Range: | 430 – 1100 nm |
| Cut-On Wavelength: | 410 nm |
| Transmission: | 95 % |
| Blocking (Optical Density): | OD>=3 |
| Filter Type: | Longpass Filter |
| Coating Type: | Hard film Coated |
| AOI: | 0°±5° |
| Central Wavelength: | 420nm±3nm |
| Cutoff Wavelength: | 200nm~410nm |
| Cutoff Rate: | <0.05% |
| Passing Wavelength: | 430nm~1100nm |
| Transmission: | >95% |
| Scratch-Dig: | 60/40 |
| Raw Material: | Fused Silica, B270, Float Glass, or other optical glass |
Features
- Raw Material: Fused Silica, B270, Float Glass, or other optical glass
- Advantages:
- Plated with hard, long service life
- Wavelength accuracy
- Ion plating, low temperature drift
- High penetration rate
- High cut-off depth
Applications
- Photographic Enhancements: Improve image quality by blocking unwanted ultraviolet light, allowing only visible light to pass through.
- Scientific Research: Ideal for laboratory experiments that require precise light filtering to study specific wavelengths.
- Optical Instrumentation: Enhance the performance of optical devices by ensuring only desired wavelengths reach the sensors.
- Laser Systems: Protect sensitive components in laser systems by filtering out harmful wavelengths.
- Medical Imaging: Improve the accuracy of imaging systems by filtering out non-essential wavelengths.
- Photography and Videography: Enhance the clarity and color accuracy of images by blocking UV light.
- Astronomy: Enhance telescope observations by filtering out atmospheric interference and unwanted light.
- Industrial Applications: Use in quality control systems to ensure only specific light wavelengths are measured.
Frequently Asked Questions
The 420 nm long pass filter is a Longpass Filter.
The central wavelength of the filter is 420 nm ± 3 nm.
The raw materials used for the filter include Fused Silica, B270, Float Glass, or other optical glass.
The transmission rate of the filter in the passing wavelength range (430 nm to 1100 nm) is greater than 95%.
The cutoff wavelength range for the filter is 200 nm to 410 nm.
The hard film coating provides a long service life, wavelength accuracy, and low temperature drift.
The scratch-dig specification of the filter is 60/40.