Overview:

Double-Concave (DCV) Lens, also referred to as bi-concave lens, has two inward curved surfaces. They have a negative focal length and are best used to diverge a converging beam. Double-concave lenses can diverge a collimated beam to a virtual focus and are commonly used for image reduction and to spread light. Star Optic provides double-concave lenses in a variety of substrates and anti-reflection coating options.

General Specifications N-BK7 Double Concave (DCV) Spherical Lens:

Material	N-BK7, UV FS, N-SF11, CaF2, Si, Ge, ZnSe, Sapphire
Design Wavelength	546.1nm
Surface Flatness	N<3(0.5)@632.8nm
Surface Quality	60/40 scratch-Dig
Diameter Tolerance	+0/-0.2mm
Thickness Tolerance	±0.2mm
Centration	<3 arc minutes
Focal Length Tolerance	±2%
Clear Aperture	>90%
Chamfer	Protective<0.5mmx45°

Standard Products N-BK7 Double Concave (DCV) Spherical Lens:

Coating Options Of N-BK7 Double Concave (DCV) Spherical Lens:

Star Optic's above standard double concave spherical lenses are uncoated. In order to reduce the amount of light reflected from each surface of the lens, antireflection coatings including singer layer MgF2, multi-layer AR coating, Broadband multi-layer AR coating and Dual wavelength AR coating are also available.

Single Layer MgF2 Coating	Multi-layer Anti-Reflective Coating
Boradband Anti-Reflective Coating	Dual Wavelength Anti-Reflective Coating

Mounting Options For Double-Concave (DCV) Spherical Lens:

Star Optic's above standard double concave spherical lenses are not mounted. However, we can provide fixed mount and adjustable mount for our lenses.

Custom Your Own Lens:

You have your full design freedom, and we are able to work with complex designs to get you exactly what you need including optical design, mechanical design and optical coating design.

Who We Are?

Wuhan Star Optic Technology Co., Ltd as a registered Hi-Tech company has been focusing on manufacturing high precision of optical components ever since its foundation in 2017. It is located in Wuhan Optics Valley of China and was founded as a masterwork of our founders with more than 20 years background in production, R&D and supply chain of optical components. The company holds 30+ patents for design, production and inspection allows us to manufacturing professionally and technologically. With high quality standard, meticulous workmanship, strict quality control, professional service, Star Optics aims to provide our customers and partners with win-win cooperation.

What We Do?

1, Products and Applications:

Products: our products mainly fall into the following five categories.

• Optical Elements: Optical Materials, Lenses, Windows, Mirrosr, Beamsplitters, Prisms, Filters
• Polarizing Optics: Waveplates, Polarizers, Polarizing Beamsplitters, Depolarizers, Brewster Windows, Quartz Polarization Rotatosr, Optical Isolators, Lateral Displacement Polarization Beamsplitters
• Crystals: Laser Crystals, Nonlinear Crystals, Passive Q-Switch Crystals, E-O Crystals, Birefringent Crystals
• Coatings: Anti-Reflective Coatings, Partial Reflective Coatings, High Reflective Coatings, Polarization Beamsplitter Coatings, Non-Polarizing Beamsplitter Coatings, Dichroic Coatings, Interference Filter Coatings
• Optomechanics: Optical Mounts

Applications: our products are widely used in Lasers, Laser Processing Machines, Precision Measuring Instrument, Automation Equipment, Micro Measurement Systems, Surveying Equipment, Non-Destructive Testing, Medical and Biological Imaging, Fiber Communication, and etc. With the company concept of Result-driven, Detail-oriented, Client-focused, our products are well acknowledged and widely used in industry and science by North America, Europe and Southeast Asia. 

2, Design:

You have full design freedom, and we are able to work with complex designs to get you exactly what you need including optical design, mechanical design and optical coating design.

3, Production:

Have the ability to transfer designs into production from prototyping to serial production. Production process like grinding, polishing, centering, coating and measuring process are carried out by both manual and CNC machines.

4, Inspection:

The measurement process during and after production are carried out with precision metrology equipment, high sensitive interferometers and spectrometers. Measurement reports either e-version or paper-version will be provided upon shipment.

5, Packing:

Safe and dust-free packing are chosen to ensure you receive your products safe and sound and can use directly in your production lines.

6, Measuring Service:

You might have had experiences that you are using a product, but not clear about the exact specifications making you hesitate to source better options. Sending us a sample will allow us to help you figure out the details and transfer it to production.

Please contact us by follow ways if you don’t see what you are looking for in our standard product lines.