Description
General Introduction: The laser level optical window of Raytek has excellent parallelism of < 30 arc seconds, which can minimize the transmission beam offset. Both sides of the window have broadband antireflection coatings, which can be used for visible or infrared applications.
N-bk7 is an excellent lens material for most visible and near infrared applications. It is the most common borosilicate optical glass, which can provide excellent performance and moderate price. N-bk7 is a good choice for transmission optics because of its high uniformity, less bubbles, low impurities and easy fabrication.
Products Name: N-BK7 Parallel Window
Alias: N-BK7 Parallel Window, N-BK7 windows, N-Bk7 optical window, Parallel N-BK7 window, Parallel N-Bk7 optical window, N-bk7 laser window, N-BK7 optical windows, N-BK7 optics windows,etc
Lens Substrates:
N-BK7
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Optional I: |
N-BK7 from CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,ETC |
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Optional II: |
Equivalent N-BK7 Made in China, C-laser own brands |
Coating:
Broadband visible antireflection coating
Raytek's AR.14 broadband multilayer antireflection coating can significantly improve the transmittance of these lenses by reducing the surface reflection in the wavelength range of 430-700 nm. The antireflection coating can be used in multiple visible wavelengths and tunable lasers without using multiple optical elements. Broadband visible antireflection coating
Raytek's AR.14 broadband multilayer antireflection coating significantly improves the transmittance of these lenses by reducing the surface reflection in the wavelength range of 430-700 nm. The antireflection coating can be used in multiple visible wavelengths and tunable lasers without using multiple optical elements.
Broadband multilayer Infrared Antireflective Coating
Raytek offers two multilayer antireflection coating options for infrared and near infrared applications. Our ar.16 coating is recommended for near infrared applications in the range of 650-1000 nm. Our ar.18 coating is suitable for infrared applications in the range of 1000-1550 nm
Main Applying:
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Applying Fields I: |
Visible applications Infrared applications. |
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Applying Fields II: |
Other |
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***** |
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Products Highlights:
1).These n-bk7 parallel windows achieve the highest accuracy in the manufacturing process
2).Laser grade for the most demanding applications
3).Surface flatness <=λ/20, 10-5 scratch-dig
4).Parallel to less than 30 arcsec, so that the transmission beam offset is minimum
5).Wide band antireflective coatings are suitable for visible or near infrared applications 6).Different grades materials for option.
7).High precision & high surface roughness;
8).Sizes can be customized as per the customers’ request
9).Quick lead time and delivery time.
10).Matching super optics custom and processing capacity, including Moulding, CNC machining, Polishing, Particle beam processing, Magnetic flux conversion processing, Grinding, Coating, Lightweighting, Custom Shaping, Counterbores, Drilling & Coring, Edge & Bevel Polishing,3D Contouring, Bevels & Chamfers, Steps & Slots, Laser Cutting & Marking, Metrology & Inspection, Precision Pitch Polishing, Double-Sided Polishing, Optical Assembly, Measuring, etc.
11).Excellent post-sale quality warranty, with “3R”-return, replace & refund policy
Main Optical Tech Specification:
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Lens Shape |
Optical Parallel Window |
Surface Accuracy Irregularity |
- |
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Lens Material |
N-BK7 |
Diameter Tolerance |
+0/-0.15 mm |
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Antireflection Coating |
Broadband coating |
Chamfers |
12.7 &
25.4 mm: 0.25-0.75 mm face width |
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Coating Type |
245nm to 1550nm |
Chamfers Angle/Tolerance |
45° ±15° |
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Damage Threshold |
7.5 J/cm2, 10 ns pulses, 20 Hz for coated models |
Transmitted Beam Deviation |
±30 arc sec |
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Thickness Tolerance |
±0.25 mm |
Wedge |
≤30 arc sec |
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Surface Quality |
10-5 scratch-dig |
Clear Aperture |
Central 85% of diameter |
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Surface Flatness |
λ/20 at 632.8nm |
OEM/ODM |
Accepted |
Popular Physical Size Specification:
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Basic Data |
Value |
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Popular Dia.Value I |
12.7mm/25.4mm/50.8mm,etc |
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Matching Thickness I |
6.0mm/10.0mm,etc |
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Surface Flatness I |
10-5 scratch-dig |
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Parallelism(Wedge) I |
≤3 arc min; ≤3.5arc min; |
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AR. Coating Model I |
Uncoated 430-700nm/650-1000nm/1000-150nm |
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Popular Dia.Value II |
- |
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Matching Thickness II |
- |
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Surface Flatness II |
- |
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Parallelism II |
- |
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Other Size Speicification |
Custom manufacturing as per demand |
Main Cooperation Materials Manufacturers:
CORNING, OHARA, SCHOTT, LEONI, AGC,HELLMA, NIKON,VITRON,C-LASER,ETC
Main Export Countries & Areas:
Usa, Uk, Japan, Germany, Spain, France, Swiss, Korea, Russia, Pakistan, India, Portugal, Canada, New Zealand, Australia, Saudi Arab, Turkey, Finland, Poland ,etc.
Raytekoptics Extra value added services offered:
1). Optical workcraft & process solution design;
2). Rough processing raw materials;
3). Semi finishing raw materials;
4). Fabricate custom sizes and shapes;
5). Design and supply custom coatings;
6). Modify and resurface customer supplied materials;
7). Drill holes, notch glass and provide beveled substrates;
8). Precision polish optics with non-standard aspect ratios;
Payment Method: by T/T or Western Union.
Delivery time: 7-10 days.
Quality Warranty: Ruitaiphotoelectric(Raytekoptics) offers quality warranty for our optics products with “3R” policy. For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.
