Double Convex Lenses/K9 Double Convex Lenses/UV Fused Silica Double Convex Lenses/Calcium Fluoride (CaF2) Double Convex Lenses

• Substrate: Schott Borofloat 33 or Equivalent
• Surface Quality: 40-20 Scratch-Dig or Custom Manufacturing
• Surface Flatness: Lambda/10 at 632.8nm with Power Removed
• Coating Type: Dielectric Coating
• Wavelength Range: 488-694 Nm/700-950nm
• Transport Package: Cartons or Wood Case
• Model NO.: RAY-LH053#
• Specification: 12.7mm/25.4mm/50.8mm or custom manufacturing
• Trademark: Raytek
• Origin: China
• HS Code: 9002909090
• Production Capacity: 100000PCS Per Year

Product Description

General introduction:A lenticular lens is a lenticular lens sheet, which includes an incident surface and an exit surface, and is characterized in that the focal length of the middle part of the lens surface is longer, and the focal length of the end parts of each lens surface is shorter. Lenticular lenses are primarily used to focus light from point sources or to transmit images to other optical systems.

Product Description:Double Convex Lenses consist of two convex surfaces of equal radius that focus light into a point with a positive focal length. Due to the symmetrical shape on both sides, it is a more suitable unit for 1:1 imaging applications. It is often used in imaging relay systems and object imaging at limited conjugate distances or beam focusing, collimation, beam expansion, etc. The characteristic of a biconvex lens is that the larger the conjugate ratio, the larger the aberration produced. The biconvex lens is suitable for the case where the object and the image are on both sides of the lens, and the ratio of the image distance to the object distance (conjugate ratio) is between 0.2 and 5.

Product material classification:
1) K9 Double Convex Lenses (K9 Double Convex Lenses) is a double convex lens with K9 optical glass as the base material:
K9 optical glass is an excellent wide-spectrum transmissive optical material with high transmittance in the 350nm-2000nm band, high hardness, and can withstand a variety of physical and chemical stimuli. The content of bubbles and impurities is low, so it is often As a base material for various optical elements.

Material	Fine annealed H-K9L optical glass
Design wavelength	587.6nm
Diameter error	+0.0/-0.1mm
Center thickness error	±0.2mm
Irregular surface shape	λ/[email protected]
Effective focus error	±2%
Lens centering error	3 arcmin
Surface finish	40/20~60/40
Chamfer	0.2mmX45°

2) UV Fused Silica Double Convex Lenses (UV Fused Silica Double Convex Lenses) are biconvex lenses based on UV fused silica:
Ultraviolet fused silica glass material has a wider spectral range (185nm-2.1μm) than K9 optical glass, excellent transmittance in the ultraviolet band, lower refractive index, better uniformity, smaller thermal expansion coefficient, and at the same time There are also features such as higher chemical resistance and very low fluorescence, which can be used to make a variety of optical components.

Material	UV Fused Silica
Design wavelength	587.6nm
Diameter error	+0.0/-0.1mm
Center thickness error	±0.2mm
Irregular surface shape	λ/[email protected]
Effective focus error	±2%
Lens centering error	3 arcmin
Surface finish	20/10~40/20
Chamfer	0.2mmX45°

3) Calcium Fluoride (CaF2) Double Convex Lenses are biconvex lenses with calcium fluoride as the base material:
The calcium fluoride material has a wide transmission spectrum range (180nm-8.0μm), has the characteristics of high damage threshold, low fluorescence, high uniformity, etc., soft physical properties, easy to scratch the surface, often used in laser Collimation, used as a substrate for a variety of optical components.

Material	calcium fluoride single crystal
Design wavelength	587.6nm
Diameter error	+0.0/-0.1mm
Center thickness error	±0.1mm
Effective focus error	±1%
Lens centering error	<3 arc minutes
Surface finish	40/20~60/40
Chamfer	0.2mmX45°

4) Zinc Selenide (ZnSe) Double Convex Lenses are biconvex lenses based on zinc selenide:
Zinc selenide is a commonly used optical glass material in the infrared band. The transmission band is 600nm-16μm. It has the characteristics of low absorption and thermal shock resistance. It is often used in thermal imaging systems and can also be used in some visible light optical systems. As a substrate for a variety of optical components.

Material	CVD Laser Grade Zinc Selenide
Design wavelength	10.6μm
Diameter error	+0.0/-0.1mm
Center thickness error	±0.2mm
Effective focus error	±1%
Lens centering error	<3 arc minutes
Surface finish	40/20~60/40
Chamfer	0.2mmX45°

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.