Glass Double-Sided Polishing/Fused Silica CNC Polishing/Aspherical Lens Polishing/Quartz CNC Manufacturing

• After-sales Service: 3r Quality Warranty-Return, Replace, Refund
• Warranty: 12months
• Usage: Lighting, Medical, Optical, Photography, Laser System
• Type: All Types
• Transmittance: as Per The Demand
• Shape: All Shapes
• Model NO.: RAY-LH290#
• Material: Optical Glass/Fused Silica/Borosillice Glass/CaF2
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE, ISO14000 & BV
• Customized: Customized
• Coating: Polishing/Coating/Uncoating, etc
• Polishing Materials Type I: Quartz/Silicon/Sapphire Ingot/Graphite
• Polishing Materials Type II: Fused Slica/Sic/CaF2/Baf2/Zns/Znse
• Max.Polishing Size: D800mm
• Min.Polishing Thickness: 0.1mm
• Polishing Surface Roughness: 5 a RMS
• Alignment: Less Than 1 Arc Second
• Bow / Warp: 5um
• Surface Quality: 60-40 to 10-5 Scratch-Dig
• Transport Package: Carton & Wood Case
• Specification: Custom as per demand
• Trademark: Raytek
• Origin: China
• HS Code: 281122900
• Production Capacity: 1000000PCS Per Year

Product Description

General Introduction: 
From prototype to high-volume production Raytek Optics is dedicated to manufacturing custom plano optics to meet your precise specifications. Since 2017, Raytek Optics has built a worldwide reputation in custom optics manufacturing pairing traditional craftsmanship with leading-edge technology. Our 50,000 sq. ft. facility houses the larger collection of cnc cutting machines,cnc milling machine centers, double-sided polishing machines,PIB polishing machine, MRF polishing machines, etc in Shanghai,China.

Custom Manufacturing Capacity 5: Double-sided Grinding & Polishing
Double-sided grinding and polishing, also known as double-sided lapping and polishing is performed with particles suspended in a liquid vehicle to abrade parts equally from both surfaces. The process produces a relatively stress-free environment that induces minimal thermal distortion making it compatible with most optical materials. The double-sided manufacturing process uses planetary action, with the combination of a top and bottom plate, resulting in outstanding transmitted wavefront error, parallelism, surface quality and surface roughness.
Raytek Optics provides ultra-precision double-side grinding & polishing for the exceptional Transmitted Wavefront Error, Total Thickness Variation, and Parallelism for sizes up to 800mm in diameter and thickness down to 0.10 mm
Raytek Optics is home to the larger collection of double-sided polishing machines in Shanghai,China. With over 40 state-of-the-art double-sided machines our manufacturing capabilities are endless. From prototype to production volumes, Raytek Optics will be there every step of the way. Raytek Optics double-sided polishing process produces parts with exceptional sub-second parallelism and fractional wavefront error.Raytek Optics technicians and engineers have perfected run-to-run consistency which make every part be the same batch after batch, year after year even with the most stringent requirements. Raytek Optics also can achieve a greater economy of scale by using a batch-processing method. So whether you need just a few parts, or tens of thousands, Raytek Optics will analyze the most efficient process to save you both time and money.

Main Processing Technical Capacity Data:

Specifications	Manufacturing Limits
Processing Workcrafts	Lapping & Double-side grinding & polishing
Diameter	≤800mm (± 0.010mm)
Length	≤800mm (± 0.010mm)
Width	≤800mm (± 0.010mm)
Thickness	≥0.1mm (± 0.003mm)
Bow / Warp	5um
Surface Roughness	≥ 5 Å rms
Parallelism	≤ 1 arc second
Surface Quality	60-40 to 10-5
Reflected Wavefront Error (RWE) - before coating	≥ 1/10 wave over 25mm sub-aperture
Transmitted Wavefront Error (TWE) - before coating	≥ 1/20 wave over clear aperture
Materials For Cutting	fused silica / fused quartz/Silicon/CaF2/BaF2/ZnS/ZnSe
Materials For CNC Machining	all glass types (results vary by material)

Main Cutting Technologies Advantages:
Polishing refers to the use of mechanical, chemical or electrochemical effects to reduce the surface roughness of the workpiece, in order to obtain bright, smooth surface processing method. Is the use of polishing tools and abrasive particles or other polishing media to modify the surface of the workpiece processing, with the following characteristics.
1).High parallelism of polishing;
2).It is especially suitable for cold working of large aspect ratio or thin components;
3).High quality polishing plane precision;
4).It is suitable for rough grinding, intermediate grinding, fine grinding and fine polishing;
5).High efficiency, high quality and stability, make every piece and batch of polishing quality consistent

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 & OEM & ODM service with "3R" policy--return, replace & refund policy.
For any inferior-quality products, Ruitaiphotoelectric(Raytekoptics) is responsible for return, replacement and refund.