Powered by Made-in-China.com
2.8*2.8mm/2.9*2.9mm/3.0*3.0mm Infared Lp5.5um Silicon Filter Long Pass Si Windows for Thermometer
US$2.00-20.00
10 Pieces
Sample price:US$5.00/piece.Request sample
Product profile
Customization
AvailableUsage
MedicalThickness Range
2mm-5mmColor
BlueType
Thin Film FilterPrinciple
ReflectionMaterial
GlassAngle of incidence
0°Shape
CustomizedCertification
RoHS, CECustomized
CustomizedSurface Quality
60-40Flatness
1/4 LambdaTolerance
+/-0.05mmFwhm
3-50nmTransport Package
100PCS Per BoxSpecification
3-200mmTrademark
Sunday OpticsOrigin
China, ChangchunHS Code
9001909090Production Capacity
50000PCS Per MonthKey features
Customized Shape: Shape is fully customized to meet specific application requirements.
High Reflectivity Coatings: Offers Aluminum (85%), Silver (97%), and Gold/HR (99%) reflective options.
Wide Material Selection: Available in BK7, Sapphire, Fused Silica, ZnS2, CaF2, Si, and Ge.
RoHS and CE Certified: Products comply with RoHS and CE safety and environmental standards.
Precision Flatness: Standard flatness of 1/4 lambda ensures high optical performance.
Comprehensive Test Reports: Full size test reports provided for size, focal length, flatness, and coating.
Low Minimum Order Quantity: Accepts orders starting from just 1 piece.
Fast Sample Delivery: Samples delivered within 10-20 days depending on specifications.
Company profile

Business Type: Manufacturer/FactoryExport Year: 2013-05-09Nearest Port: beijing, shanghai, shenzhenAverage Response Time: ≤15hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CIF, DDP, CIP
AI-Powered supplier vetting
SummaryChangchun Sunday Optics Co., Ltd. is identified as a Chinese manufacturer/factory specializing in optical components, including lenses, prisms, windows, filters, coatings, and optical assemblies. The supplier reports ISO 9001 certification, more than 10 production lines, 41–50 quality-control staff, 6–10 years of combined R&D engineer experience, and annual processing capacity of up to 1 million pieces. It also states that it supports both sample orders and mass production and provides after-sales service. The supplier has exported since 2013 and holds self-operated import and export rights. However, the supplied information does not provide sufficient evidence to assess financial credibility, product-specific customization capability, or the quality and scale of customer cases.
Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory and describes its own optical-component production activities, including lenses, prisms, filters, coatings, and assemblies. This supports direct manufacturing capability rather than only trading or distribution.
CertificationsThe supplier reports holding ISO 9001 certification, indicating that a quality-management-system certification is claimed. No certification number, issuing body, scope, or validity period is provided.
After-Sales capabilityThe supplier explicitly states that it provides after-sales service for product questions to achieve customer satisfaction. The information does not specify response times, service channels, warranty terms, or service coverage.
Production capacityThe supplier reports more than 10 production lines, 41–50 quality-control staff, multiple branches, and annual processing capacity of up to 1 million pieces, with support for sample orders and mass production. Its stated equipment covers cutting, grinding, polishing, coating, and gluing, providing explicit evidence of substantial optical-component production capability.
Product Q&A
Q:Are you a manufacturer and can we see your factory?
A:
Yes, we are a manufacturer and can show you our factory.
Q:Do you have test reports?
A:
Yes, we offer full size test reports covering size, focal length, flatness, coating curve, and coating plate.
Q:What is your production quantity every month?
A:
It depends on the lens size and precision.
Q:What is the Minimum quantity?
A:
1pc.
Q:What is your delivery time?
A:
Samples: 10-20 days.
Send Inquiry
*To:
Changchun Sunday Optics Co., Ltd.
Changchun Sunday Optics Co., Ltd.*Content:
Supplier replies will be sent to your registered email
You may also like
Customized IR Laser Grade Optical 25.4mm/50.8mm Silicon Glass Windows (Si Window)
US$1.00-6.00
30 Pieces(MOQ)
Customized Silicon Germanium Window Infrared Window Optical Glass Window for Laser Focus Lens
US$5.00-15.00
10 Pieces(MOQ)
Custom 400nm Long Pass Filter Gg400 Optical Glass Filter Window Disc
US$2.00-20.00
10 Pieces(MOQ)
Optical Sapphire Bk7 CaF2 Mgf2 Quartz Znse Zns Infrared Silicon Windows
US$5.00-15.00
10 Pieces(MOQ)
Customized K9 Bk7 Window Special Filter Transmittance>98% Optical Window for Medical Endoscope
US$5.00-15.00
10 Pieces(MOQ)
Wholesale Optical Sapphire Glass Windows Custom Sapphire Crystal Glass Plate
US$2.00-20.00
10 Pieces(MOQ)
Laser Big Power Window Quartz 5j 10ns 10Hz
US$10.00-30.00
10 Pieces(MOQ)
ZnSe Zinc Selenide Windows for IR Thermal Detecting, Spectrometer, FLIR Camera
US$20.00-99.00
1 Piece(MOQ)
Optical CaF2 Baf2 Mgf2 Glass Protective Window for Camera
US$2.00-20.00
10 Pieces(MOQ)
Optical Silicon Flats Si Window for Sale
Negotiable
1 Piece(MOQ)
Optical Windows in Stock & Customizable Manufacturer with Various Coating Options for Optics
US$12.00-15.00
1 Piece(MOQ)
Optics Filter Infrared Windows for Measurement Analysis Instrument
US$0.10-10.00
1 Piece(MOQ)
Optical Sapphire Windows Optical Silicon Window
Negotiable
1 Piece(MOQ)
Customized Quartz Fused Optical Glass Window Transparent Quartz Window
US$25.00
10 Pieces(MOQ)
OEM Optical Windows Filter Coating
Negotiable
2 Pieces(MOQ)
Camera Protective Lens Ar Coated Glass Lens Filter Anti-Reflective Optic Window
US$5.50
10 Pieces(MOQ)
Factory Supply Custom Anti Reflective Optic Glass Window for Touch Screen
US$1.00-50.00
1 Piece(MOQ)













