Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм
Оптический узкий светофильтр 850 нм

Оптический узкий светофильтр 850 нм


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Products Description


850nm 940nm 1005nm 1145nm 1230nm 1310nm 1480nm 1550nm 1620nm 2000nm band pass glass uv ir cut optical narrow bandpass filter




Custom Window,Mirror,Waveplates, Filters, Beamsplitters, Prisms, Lens, and other optics.
Wavelength
UV
VIS
IR
Other band
Optics
Lens
Prism
Mirror
Beamsplitter plate
BK7 K9
Plano-convex lens
Right-angle prisms
Metallic mirro
Beamsplitter cube
Quartz
Plano-concave lens
Dove prisms
Dielectric mirror
Cylindrical rod lens
Borosilicate
Bi-convex lens
Penta prism
Flat front mirror
Filters
Sapphire
Bi-concave lens
Cube prisms
Flat concave mirror
Fresnel lens
Ruby
Meniscus lens
Triangular prisms
Prism mirror
Windows
CaF2
Achromatic lens
Corner cube prism
Half mirror
Coating & Assembely
ZnSe
Ball and half ball
RGB combiner prism
Special-shaped
Hot sale
Other
Other
Other
Other
Other


Optical Fused silica,sapphire,(BK7)K9,Ge,Si,Zns,ZnSe,CaF2,BaF2 Optics window specification
Product name
UV fused silica dome window
Substrate
Silicon or colored glass
Diameter
5-300mm
Diameter tolerance
±0.1mm
Thickness
1-10mm
Thickness tolerance
±0.1mm
Clear aperture
>90%
Suface quality
60-40 40-20 or better
Surface flatness
λ/2 λ/4 or better
Pallelism
<3 arcmin
Chamfer
0.3mm*45°
Coating
Anti-reflection coating


The passband of a bandpass filter is surrounded by two blockings bands, which allow only part of the wavelengths of the spectrum to pass, and are often used to transmit part of the spectrum while blocking all other wavelengths.
Bandpass filters are suitable for various applications such as spectroscopy, clinical chemistry or imaging.
FRD Optics offers a variety of half-bandwidth bandpass interference filters in a variety of transmittances and sizes.




Optical filter is a type of optical element that selectively selects spectral wavelengths to transmit, reflect, blocking, and attenuate.According to their functions, they can be divided into bandpass filters, long pass filters, short pass filters, dichroic filters, neutral density filters (ND Filters), notch filters, and cold mirrors. , heat mirrors, color filters, etc.Divided into interference filters and color absorption filters. These filters are widely used in spectral analysis, biomedicine, machine vision, fluorescence microscopy, industrial automation and other industries and products.The bandpass filter selectively allows certain spectral wavelengths to pass through and prevents certain spectral wavelengths from passing through in its spectral range;Neutral Density Filter (ND Filter) reduces the luminous flux by reducing the transmittance in the specified spectral wavelength range, which is beneficial to the protection of sensors/electronic components, and is widely used in the field of laser optics/optoelectronics;Cold/hot mirrors can reflect and transmit light with longer wavelengths in the spectral range in a targeted manner, and are widely used in lighting systems to help remove heat generated in lighting systems.FRD Optics Technology is a standard filter optics supplier, we not only provide a large number of standard filters in stock, but also can customize filters for you according to your needs.


Optical Material Overview
Materials name
Refractive Index
Transmission Range(um)
Thermal Expansion Coefficient (10'7K)
Density(g/cm3)
BK7
1.5164 (588nm)
0.330-2.1
7.5
2.52
Fused Silica
1.4858 (308nm)
0.185-2.5
0.58
2.2
Crystal Quartz
n0= 1.5427 ne=1.5518 (633nm)
0.200 - 2.5
13.2||a;7.1||c
2.65
CaF2
1.399 (5000nm)
0.170-7.8
18.85
3.18
MgF2
n0= 1.3836 ne= 1.3957 (405nm)
0.120-7.0
13.7||a;8.48||c
3.17
Sapphire
1.755 (1000nm)
0.180-4.5
8.4
3.98
Silicon
3.426 (5000nm)
1.2-7.0
2.55
2.33
Germanium
4.004 (10000nm)
2.0-14.0
5.5
5.33
ZnSe
2.4028 (10600nm)
0.55-19.0
7.6
5.27
YVO
n0= 1.9500 ne=2.1554 (1300nm)
0.35-4.0
4.43||a; 11.37||c
4.22
Calcite
n0= 1.6557 ne=1.4852 (633nm)
0.210-2.3
5.68||a; 24.39||c
2.7
a-BBO
n0= 1.6749 ne= 1.5555 (532nm)
0.190-3.5
4.0||a; 36.0||c
3.85
LiNbO3
n0=2.2863 ne=2.2027 (633nm)
0.370 - 4.5
14.8||a;4.1||c
4.64


Products Application




Company Information




FRD Optics Technology Co., Ltd is focus on the R&D, production and sales of optical components, optical lenses and infrared thermal image for more than 10 years.Our products are mainly used in electric power monitoring, maritime monitoring, petroleum and petrochemical, metallurgical manufacturing, coal mine safety, airport inspection and quarantine,Oilfield monitoring and scientific research, railway testing, urban security monitoring, border monitoring, highway monitoring, forest fire prevention, fire protection and other industries.


What product FRD can supply:
Products including: Optical element,optical lens,such as UV lens, Visible light lens, Near-infrared short-wave lens, medium-wave cooled lens, infrared long-wave lens, terahertz camera lens,we're an all band optical products supplier.


Lenses customized
Such as Extender/Teleconverter lenses,Field lenses,Terahertz Lenses,Beam Expander,Shot Wave Infrared (SWIR)Lenses,UV Lenses,Telecentric Field Lenses,Prime Athermalized Lens,Continuous Zoom Lens,Dual field of view lens,Medical temperature measuring lens,Uncooled surveillance camera,Laser field lens-Telecentric Scan lens,etc.


Optical element:
Such asdiaphragms speculum lenses,sphere lenses,brewster window,plane waveplate,plane mirror,plano filter,plane windows,attenuance filter, plane attenuator,curved surface mirror,
clindrical lenses,prisms,ellipsoidal mirror,spherical lenses,infared (IR) Filter,axicon lenses,aspherical lenses,aspherical metal lenses,aspherical mirror,spherical mirror,etc.


Module customized
Such as LWIR Uncooled module,Temperature measurement type,LWIR Uncooled module--Alarm type,MWIR cooled module,etc.


Complete equipment
Such as Dual optical path monitoring system,HD Laser Night Vision,Automatic infrared human body thermometer,Thermal Imaging Microscope,Dual light ship navigation aid system,FRD_F series handheld thermal imager,Military Multispectral Handheld Thermal Imager,Dual optical path Forest Fire Monitoring System,etc.


Optical materials
Such as BK7,Fused Silica,Quartz,CaF2,MgF2,Sapphire,Silicon,Germanium,ZnS,etc.




Optical design




Quality assurance




Certificate










FAQ


1. Who are we?
We focus on the R&D, production and sales of optical components, optical lenses and infrared thermal imaging system more than 10 years.

2.How can we guarantee quality?
Professional and experienced team,Use the world's advanced testing equipment such as MTF measment equipment, High & Low Temperature Chamber, Zygo interferometer, Profiler,central deviation measuring instrument.

3. Why choose us?
1. Strong customized service capabilities.
2. More than 10 years of R&D and design team.
3. Perfect pre-sale,in-sale and after-sale service.
4. Reliable quality assurance, North America and Europe certification approved, and lifetime maintenance.

4. What services can we provide?
We design and customize the high quality optics and optical components covering UV, VIS, NIR and IR wavelengths.

5.Your products can be customized?
Yes of course!We accept OEM &ODM orders. Actually most of our products are customized. We will try our best to fulfill your requirements.

6. Do you have the after sales service?
24 hours online service!
Free inspection of product fault!
Problems and faults within the warranty period are exempted from all maintenance costs and material costs.
Free upgrade and calibration of software faults
After the warranty period,the maintenance will only charge the cost of spare parts and provide the customer with the repair test quotation report.


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