Premium Grade Plano Concave Cylindrical Lenses Manufactured with Precision Grinding and Polishing for Superior Surface Finish

• Warranty: 1 Year
• Usage: Optical
• Type: Concave Lens
• Model NO.: FSCL
• Transmittance: 90%-95%
• Shape: Cylindrical Shaped Lens
• Material: Optical Glass
• Lenses Color: Clear
• Certification: RoHS, ISO9001, CE
• Customized: Customized
• Diameter (mm): 50.8
• Effective Focal Length (Efl) (mm): 250
• Surface Finish: 20/10-40/20
• Diameter Tolerance: +0.0 / -0.1
• Transport Package: Foam Carton Inner, Then Cartons to Pack Them
• Trademark: FS
• Origin: Tianjin

Product Description

Product Description

Plano-Concave Cylindrical Lenses A Unique Player in the World of Optics

In the field of optics, plano-concave cylindrical lenses stand out as optical components with distinctive characteristics. Composed of one flat surface and one concave cylindrical surface, this unique structure endows them with specialized optical functions unlike any other.

Fushi Optics can provide customers with a variety of replicated grating products such as diffraction gratings, transmission gratings and holographic gratings to meet different needs.
 

Specification

PRODUCT NAME	Plano-Concave Cylindrical Lens
SURFACE PERFECTION	20/10-40/20
DIAMETER	50.8MM
DIAMETER TOLERANCE	+0.0/-0.1
MATERIAL	K9 GLASS
TRANSMITTANCE	91%
TYPE	Cylindrical Lens

Optical Applications‌

From an optical standpoint, the behavior of these lenses differs significantly from that of conventional spherical lenses. While spherical lenses uniformly refract light in all directions, plano-concave cylindrical lenses diverge light only along a specific axis. When parallel rays strike such a lens, they pass through unchanged along the direction parallel to the cylinder's axis—experiencing no refraction—while in the perpendicular direction, the rays spread apart, as if being "pushed outward." This selective divergence makes plano-concave cylindrical lenses indispensable in numerous optical systems.

In practical applications, their uses are diverse and impactful. In laser technology, they are frequently employed for beam shaping. Laser beams typically exhibit a Gaussian intensity profile, and in many cases, modifying their shape is essential to meet specific operational needs. By diverging the beam in one direction, these lenses can transform a circular beam into an elliptical or even rectangular profile, enhancing both the efficiency and effectiveness of the laser. For instance, in industrial applications like laser cutting and welding, using plano-concave cylindrical lenses to reshape the beam allows for more uniform energy distribution across the working area, thereby improving processing quality and precision.

These lenses also play a critical role in imaging systems, particularly in correcting optical aberrations such as astigmatism. Astigmatism occurs when light rays traveling in different planes come to focus at different points, resulting in blurred images. Plano-concave cylindrical lenses help realign rays along specific axes, enabling them to converge more precisely at a common focal point, thus enhancing image clarity. In high-end optical instruments like microscopes and telescopes, they are often integrated to boost resolution and overall image sharpness.

Company Profile

Tianjin Fushi Optics Co., Ltd.

Tianjin Fushi Optics Co., Ltd. is a comprehensive optoelectronic enterprise integrating R&D, production, sales, and after-sales service. Since its establishment in 2012, the company has been dedicated to technological innovation and industrial application in the field of optical components, with its manufacturing base located in China's core optical industry zone. The product portfolio covers a full range of optical basic components, including lenses, prisms, mirrors, optical windows, and filters, with particular technical expertise in the design and manufacturing of diffraction gratings.  
In 2017, Fushi Optics established a professional optical laboratory in Dongli District, Tianjin, committed to integrating optical theoretical research with engineering practice. After years of technical accumulation, the laboratory has gained wide academic recognition for its research achievements in spectral analysis, precision optical processing, and other fields, forming an integrated "industry-academia-research-application" technological innovation system. It continues to provide high-performance optical solutions for the optoelectronic industry.

FAQ

Q: How can I get samples from you?
Just send us your requirements, and we will send samples accordingly. 
 
Q: How long is your delivery time? · 
Regarding inventory, it is 3 working days;
For customized one, it's about 15-25 working days, depending on exact quantity and order date. 
 
Q: Can I customize the products based on my requirements?
Yes, we can customize the material, specifications and optical coating for your optical components as per your requirements.

Q: Are you a factory? 
Yes, we are a professional manufacturer of optical components. We have more than 20 years of experience in optical cold working.
 
Q: How do you control the quality?
More than four times of quality inspection during the production process; we can provide the Quality Test Report.

Packing & Delivery

We attach great importance to every detail in production and communication. Should you have any questions, suggestions, or comments, please do not hesitate to share them with us. Your feedback is invaluable in our pursuit to become a worthy, trusted, and reliable supplier. Thank you for yo