Short Pass Filter Short Wave Pass Filter Shortpass Filter

Shortpass filters are an essential tool in optics and photonics designed to transmit shorter wavelengths of light while blocking or attenuating longer wavelengths. They are commonly used in various applications, including spectroscopy, fluorescence microscopy, telecommunications, and laser systems. By selectively allowing only shorter wavelengths to pass through, short-pass filters enable researchers, engineers, and scientists to manipulate light for various purposes.

 

Our Shortpass Filter, an exquisite creation born from cutting-edge technology and unrivaled precision, accompanies you on your extraordinary optical expedition. With its razor-sharp cutoff wavelength, the Shortpass Filter becomes your trusted companion, granting unparalleled control over the transmitted wavelength range. Every beam of light is sculpted with exquisite accuracy, ensuring that only the desired wavelengths are permitted to pass through. In contrast, the longer ones are gently held back, their influence diminished.

 

Crafted with the utmost care, our Shortpass Filter exemplifies exceptional optical quality. Each layer and coating is meticulously engineered, delivering uniform transmission, minimal distortion, and remarkable spectral stability. The light that dances through the filter remains true to its essence, unaltered by imperfections. With this filter as your guide, your results are assured to be reliable and accurate every step of the way. Contact us today to embark on your scientific odyssey and witness the transformative power of our Shortpass Filter.

 

Features

- Sharp Cutoff

- High Transmission Efficiency

- Adequate Blocking

- Low Optical Distortion

- Spectral Stability

- Wide Angle of Incidence Range

- Durability and Reliability

 

Parameters

Product Name	CWL	Transmission Rate	Blocking Depth	Blocking Range	Tolerance	Diameter
SP450nm	450nm	>90% of the common	OD6 or custom	450-1200nm	±0.01-0.1mm	φ25mm or custom
SP500nm	500nm	>90% of the common	OD6 or custom	500-1200nm	±0.01-0.1mm	φ25mm or custom
SP532nm	532nm	>90% of the common	OD6 or custom	532-1200nm	±0.01-0.1mm	φ25mm or custom
SP650nm	650nm	>90% of the common	OD6 or custom	650-1200nm	±0.01-0.1mm	φ25mm or custom
SP800nm	800nm	>90% of the common	OD6 or custom	800-1200nm	±0.01-0.1mm	φ25mm or custom
SP850nm	850nm	>90% of the common	OD6 or custom	850-1200nm	±0.01-0.1mm	φ25mm or custom

 

Spectrum transmission curve

 

Construction

- Substrate: The filter begins with a transparent substrate, such as glass or quartz, which provides a solid foundation for the filter.

- High Refractive Index Layer: A layer of material with a high refractive index is deposited on top of the substrate. This layer helps to enhance the filter's performance by creating interference effects.

- Low Refractive Index Layer: Above the high refractive index layer, a layer of material with a low refractive index is deposited. This alternating pattern of high and low refractive index layers continues to create the desired interference effects.

- Layer Repetition: The deposition process is repeated multiple times, creating a stack of alternating high and low refractive index layers. The number of layer repetitions and their respective thicknesses are carefully designed to achieve the desired optical properties, including the cutoff wavelength.

- Antireflection Coating (Optional): In some cases, an additional antireflection coating may be added to the top and bottom surfaces of the filter. This coating helps to minimize unwanted reflections and enhance the overall transmission efficiency.

 

Production process

 

Applications

Short-pass filters find widespread use in scientific research, particularly in fields such as spectroscopy and fluorescence imaging. In spectroscopy, they are employed to separate and analyze different light source components, allowing researchers to study specific wavelengths of interest. In fluorescence microscopy, shortpass filters are crucial for separating the excitation light from the emitted fluorescence, enhancing image quality and signal-to-noise ratio.

 

Additionally, short-pass filters are vital components in optical telecommunications systems. They are utilized to selectively transmit signals within specific wavelength bands while suppressing unwanted noise and interference from other wavelengths. Shortpass filters contribute to the efficient and reliable operation of fiber optic communication networks by ensuring that the correct wavelengths are sent and received.

 

How to select an excellent short-pass filter

When selecting a short-pass optical filter, consider the desired wavelength range, cutoff slope, transmission efficiency, blocking content, visual quality, substrate material, angle of incidence, environmental factors, and supplier support.

- Determine the wavelengths you want to transmit while blocking longer ones and choose a filter with a sharp cutoff slope for precise wavelength control.

- Look for high transmission efficiency within the desired range and adequate blocking of longer wavelengths.

- Evaluate the filter's optical quality for uniform transmission and minimal distortion, and consider the substrate material for compatibility and thermal stability.

- Assess the filter's performance at different angles of incidence if necessary.

- Consider environmental conditions and choose a reputable supplier with technical support and reliable customer service.

 

Why choose us

- Unmatched Expertise

As one of the leading optical filters manufacturer, we possess extensive expertise and knowledge in the field. With over 20 years of experience, we have honed our skills to deliver exceptional filter solutions tailored to your needs.

 

- Superior Quality

Quality is at the core of everything we do. Our commitment to excellence ensures that each optical filter we produce undergoes stringent quality control processes. We utilize advanced manufacturing techniques and premium materials to guarantee superior quality, durability, and long-term performance.

 

- Customization Options

We understand that every application is unique, and one size does not fit all. That's why we offer extensive customization options to meet your specific requirements. From wavelength ranges and bandwidths to form factors and substrate materials, we provide flexible solutions that perfectly align with your application needs.

 

- Cutting-edge Technology

Our dedication to staying at the forefront of technological advancements drives us to invest in cutting-edge research and development continuously. By harnessing the latest innovations, we can deliver state-of-art optical filters that provide exceptional performance, enhanced accuracy, and precise control over light wavelengths.

 

- Exceptional Customer Support

We believe in building strong and lasting relationships with our customers. Our dedicated customer support team is always ready to assist you, whether you need technical advice, product recommendations, or after-sales support. We prioritize your satisfaction and are committed to ensuring a seamless and positive experience throughout your partnership with us.

 

FAQs

Q1: Can I order some samples for our testing?

A1: Sure, we welcome sample orders to test and check the quality

 

Q2: What is your MOQ?

A2: Usually, our MOQ is 10-20pcs. But we accept lower quantities for your trial order and can also tell you the EOQ(cold processing and coating).

 

Q3: How long will it take to deliver?

A3: For sample orders, shipping by air or express is about 2-7 days, depending on the destination. For formal orders, shipping by sea takes 35-50 days, depending on different destinations.

 

Q4: How likely are UV bandpass filters to break in shipping?

A4: The mirrors are unlikely to break in shipping due to how we package them. If there's a broken mirror, take photos of the mirror and packaging (with the label shown in the image), and we can send a replacement.

 

Q5: What services can we provide?

A5: Accepted Delivery Terms: FOB, CFR, CIF, EXW, FCA, DDP, DDU, Express Delivery;

Accepted Payment Currency: USD, EUR, CAD, HKD, GBP, CNY;

Accepted Payment Type: T/T, L/C, D/P, D/A, MoneyGram, Credit Card, Paypal, Western Union, Cash

Language Spoken: English, Chinese

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