The short pass filter is to transmit shorter wavelengths of light while rejecting longer wavelengths. The design of this type of filter makes it easier to separate excitation and emission wavelengths within the desired range, effectively isolating longer wavelength light without interfering with specific wavelengths.
Features of Short Pass Filter
High Transmittance: short wave pass filter have high transmittance and high cut-off depth, with transmittance typically reaching over 90%.
High Cut-off Steepness: These filters have a narrow cut-off bandwidth and high cut-off steepness, effectively separating excitation and emission wavelengths without interfering with the wavelengths of interest.
High Background Light Density: They possess a high background light density, effectively reducing background light interference.
Material Diversity: Short pass filter can be made from materials such as UV fused silica or optical-grade float glass, offering different transmission characteristics and cut-off wavelengths.
Application Fields of shortpass filter
Fluorescence Excitation Spectroscopy: Used to eliminate interference light outside the usable wavelength band, improving imaging clarity and system sensitivity.
Raman Spectroscopy Applications: Crucial for noise reduction in spectra and isolating specific spectral regions.
Worldhawk can providea precision filters for many applications, including bandpass interference filter, Cut off filters, UV bandpass filter, Narrow bandpass filter, ND filter, Negative Filter or Notch filters, dichroic, color substrate.
Optical Filters are used to selectively transmit or reject a wavelength or range of wavelengths. Optical Filters are used in applications such as fluorescence microscopy, clinical chemistry, spectroscopy, or machine vision inspection. Optical Filters are ideal for life science, imaging, industrial, or defense industries.
Custom filters are available for both large manufacturing needs and in prototype volumes. Contact us for more information or to arrange a quote.
Hanzhong Brisun Optics Co., Ltd. Is the high High precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.
Filter is a kind of optical element with targeted selection of spectral wavelength transmission, reflection, cut-off and attenuation. According to its function, it can be divided into band-pass filter, long wave-pass filter, short wave-pass filter, dichroic filter, neutral density filter (ND filter), notch filter, cold mirror, thermal mirror, color filter, etc. The color filter is divided into interference filter and absorption filter.
These filters are widely used in spectral analysis, biomedicine, machine vision, fluorescence microscopy, industrial automation and other industries and product fields.
The band-pass filter selectively allows and prevents the transmission of a certain spectral wavelength within its spectral range;
Neutral density filter reduces the luminous flux by reducing the transmittance in the specified spectral wavelength range, which is conducive to the protection of sensors / electronic components. It is widely used in the field of laser optics / optoelectronics;
Cold / hot mirrors can reflect and transmit light with long wavelength in the spectral range. They are widely used in lighting systems, which is conducive to eliminating the heat generated in the lighting system.
Borisun Optics is a standard optical filter supplier. We not only provide a large number of standard filters in stock, but also customize filters according to your needs.
Technical parameters:
Material: optical glass, H-K9L (N-BK7), quartz
Radius of curvature: ± 1mm - ± 50000mm ± 1%
Outer circle: 3mm-500mm ± 0.1mm
Center thickness tolerance: ± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation: 3²(we can process to 30 ³with high precision)
Surface accuracy: / 8 (high precision, we can process to 1 / 10)
Surface quality: 60/40 (we can process to 10-5 with high precision)
Effective caliber: 90%
Coating: according to the customer requirements
In addition, we have thousands of kinds of stock, such as quartz plano convex lens, quartz plano concave lens, quartz biconvex lens, quartz biconvex lens, cylindrical lens, prism, filters, windows, beamsplitter and so on. The price is preferential and the quality is excellent, which can meet your demand for a small order.
If you are interested it, welcome to inquiry us or search "Hanzhong Borisun Optics Co.,Ltd "to know about more details.
Product features
Witlan ir series plastic filter is based on our proprietary ir management technology, it is high transparent to 800-1600nm nir and blocks 300-700nm uv and visible light.
Witlan ir filters are made from high performance engineering plasticsï¼?it exhibit high heat resistance and good anti-scratch performance.
To fit your specific applications, witlan ir series plastic filter can be customized dimensions and ir pass curves.
Applications
Witlan ir filter is the best choice for ir windows or visual shielding for various applications such as ir surveillance devices, cameras, instruments, lasers, and various other optical devices.
SPECIFICATIONS:LSBPF3-C-229-A
Frequency range:3.7 4.2GHz
Insertion loss: 0.5dB
VSWR: 1.5
Average input power: 10W
Impedance: 50 ohms
Rejection: 25dBc@3.625-4.25GHz
60dBc@3.55-4.35GHz
70dBc@3.5-4.4GHz
Waveguide Flange:FDM40/CPR229G(input),FDP40/CPR229F(output)
Dimensions(LxWxH)mm:120 x 100 x 70
Weight: 700g
Environmental conditions:
Operating temperature -40 ~85
Storage temperature -65 ~125
We supply Filter,Diplexer,Combiner,Coupler,Antenna 30MHz-50GHz for RF and Microwave with high quality and competitive price. Hope to cooperate with you!
TLLPF-0225 low pass filter, passive integrated multi-layer LTCC process, adopted using surface-mount micro-encapsulation technology, it integrates high-reliability design and has a three-dimensional structure structure, extremely small volume and other characteristics. Its high performance and stable temperature characteristics can be widely used in radio frequency microwave communication and aerospace fields.
Model Number: UIYBPF6038A
Frequency range: 1700~2600MHz
Insertion Loss: 1.0 dB
VSWR:1.5
Rejection:40dB@1300MHz&3000MHz
60dB@1000MHz&4000MHz
Power:50W
Connector Type: N SMA
Temperature: -40~+85â??
Dimension:60*38*14mm
UHF Band Pass Filter
Frequency range 130-3000MHz, from 1MHz to full bandwidth.
Military, space and commercial applications.
Low insertion loss, high isolation, high power handling.
Custom design available upon request.
Model Number:UIYBPF125125A
Frequency Range:300~500MHz
Insertion Loss:0.5dB
VSWR:1.22
Rejection:60dB@Fc�±20MHz
Connector Type N SMA
Power:100W
High RF performance, ultra-competitive price.
Military, space and commercial applications.
Custom design available upon request.
Guaranteed for one year standard.
