Silicon Spherical Lens for Middle Infrared Optical Instrument

• Customization: Available
• Usage: Medical, Optical
• Type: Concave Lens
• Transmittance: >95%
• Shape: Single-lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS
• Customized: Customized
• Coating: HC
• Color: Transparent
• Diameter Tolerance: +0.0/-0.15 mm
• Thickness Tolerance: +/-0.1mm
• Parallelism: <3 Arc Minute
• Surface Quality: 60/40,40/20 or Better
• Bevel: 0.25mm×45 °
• Clear Aperture: 90%
• Polished: Yes
• Transport Package: Safety Green Carton
• Origin: Changchun
• HS Code: 9001909090
• Production Capacity: 40000/Year
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 1.000kg
• Lead Time: 30 days (1 - 100 Pieces) ; To be negotiated ( > 100 Pieces)

Product Description

Si Spherical lens and lens assemblies are available from Yutai Optics in a wide range of specifications. These lenses are designed to to meet applicationsfrom microscopy to laser processing and medical research to defense.

Spherical lenses include both converging lenses such as plano-convex and double-convex as well as diverging lenses like the double-convex and plano-concave lens.

If a spherical lens is converging, it features positive focal length, the image will be real and the orientation upright. The center of a converging lens is thicker than the edge, and rays parallel to the principal axis are converged toward the principal focus.

Diverging spherical lenses are thinner in the center and thicker toward the edges. Since parallel rays diverge as they pass through the lens, they seem to come from a virtual focus at a point before the lens (negative focal length). We call this focus virtual because the light doesn't actually pass through it, and an image will appear inverted.

Material	Silicon
Dimension	3mm-300mm
Surface Figure	λ/4
Diameter Tolerance	+0.1, -0.1 mm
Thickness Tolerance	±0.2 mm
Parallelism	30"
Clear Aperture	>90%
Surface Quality	60-40 scratch and dig
Protective Bevel	0.25 mm x 45°

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Factory information

Our Advantage

Sales Team
Yutai Optics has a professinal sales team with excellent service, we tracking from inquiry to delivery of items.We try our best to meet each customers'request.             

Production Team
Yutai Optics has many experienced engineers and advanced machines, they are the important guarantee for the higher quality products.Our advanced production machines list:
Ring polishing machine, Single axis machine,  Two axis machine, Four axis machine,Centering edging machine,Mechanical milling machine,Spectrograph,  Grinding machine,nanotech.250upl,talysurfi120.
                                                                                     
Inspection Team
Advanced testing equipment and methods are important guarantee for the production of high-precision products.Our testing machine is ZYGO, Stereo interferometer,Horizontal interferometer.We provide testing report for each batch for your items.

Process for most optics
Material-cutting-rounding-milling-grinding-polishing-edging-cleaning-coating-gluing-edging-blacking-accembly-packing-shipping

Packaging & Shipping
 1 Package Detail: A. Standard carbon and envelop with plastic foam.
                               B. Safety green carton.
                               C. Customized.
2 Delivery Detail: Within 30 days.(Also depand on the quantity)