BK7 Glass Cylindrical Lenses
Last Updated: April 1, 2025
Description
BK7 Glass Cylindrical Lenses are optical components designed to focus or expand light in one dimension. These lenses are crafted from BK7 glass, a high-quality optical glass known for its excellent transmission and low inclusion content. The primary function of these lenses is to manipulate light into a linear form, which is essential for various optical systems.
Working Principle
The working principle of BK7 Glass Cylindrical Lenses involves the refraction of light through their curved surfaces. These lenses can either converge or diverge light along a single axis, depending on their specific design, such as plano-concave or plano-convex configurations. This ability to control light in one dimension makes them particularly useful for applications requiring precise light manipulation, such as focusing a laser beam into a line or expanding a beam for scanning purposes.
Applications
BK7 Glass Cylindrical Lenses are widely used in laser scanners, spectrometers, and optical processors. For instance, in laser scanning systems, these lenses can transform a collimated laser beam into a line of light, which is crucial for scanning and imaging applications. They are also employed in spectrometers to focus light onto a detector array, enhancing the accuracy and efficiency of spectral analysis.
Advantages over other Cylindrical Lenses
One of the significant advantages of BK7 Glass Cylindrical Lenses is their high optical quality, which ensures minimal distortion and high transmission of light. This makes them preferable in applications where precision and clarity are paramount. Additionally, BK7 glass is known for its durability and resistance to environmental factors, providing a longer lifespan compared to lenses made from other materials.
Limitations
A notable limitation of BK7 Glass Cylindrical Lenses is their unsuitability for ultraviolet (UV) wavelengths. The material properties of BK7 glass do not support efficient transmission in the UV spectrum, which restricts their use in applications requiring UV light manipulation.
Considerations
When considering BK7 Glass Cylindrical Lenses, it is essential to evaluate the initial costs, which can be higher due to the quality of the material and manufacturing precision. However, their durability and low maintenance requirements can offset these initial expenses over time. The accuracy of these lenses is generally high, but regular calibration and cleaning may be necessary to maintain optimal performance. Replacement and maintenance costs are typically low, given the robustness of BK7 glass, but should still be factored into long-term operational budgets.
from Changchun Yutai Optics Co., Ltd.
K9 cylindrical lenses are optical components that are commonly used in lasers, imaging and optical systems. What are the applications of K9 cylindrical lenses?. Laser systems: for beam shaping, beam expansion or focusing. Imaging systems: to correct dispersion or to realize specific optical effects. [See More]
- Materials: BK7 Glass
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared; Visible; Ultraviolet
- Surface Flatness: λ/4
from Newport MKS
The CKIT-2AR.18-P Introductory Cylindrical Lens Set is a 1000-1500 nm antireflection coated lens set containing 5 lenses. Newport's cylindrical lens sets provide a selection of research quality plano-convex and plano-concave lenses in convenient focal lengths from -200 to 300 mm. All lenses are edge... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Lens Features: Antireflection Coating
from CRYSTECH, Inc.
CRYSTECH is dedicated to manufacturing high precision spherical lens for solid-state leaser systems. We have over 20 years of experience in lens manufacturing, design, and coating. We provide these lenses with the material of BK7, fused silica, sapphire, CaF2, ZnSe(ZnS) and other glass raw material. [See More]
- Materials: BK7 Glass; Calcium Fluoride; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica
- Lens Application: Infrared; Visible
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Surface Flatness: λ/2 (optional feature); λ/4
from CASTECH, Inc.
Note: Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Materials: BK7 Glass
- Length: 25.4
- Lens Form: Plano-Concave
- Width: 6.35
from CeNing Optics Co., Ltd.
CeNing Optics specializes in manufacturing high precision optical components, including optical lenses, prisms, beam splitters, waveplates, polarizers, interference filters, laser mirrors, BBO crystals, achromatic lenses, cylindrical lenses, and CaF2 windows. CeNing Optics produces optical... [See More]
- Materials: BK7 Glass
- Lens Application: Visible
- Lens Form: Plano-Concave
- Focal Length: -500 to -8
from Newport MKS
The CKV025AR.33 Plano-Concave Cylindrical Lens is a 1064 nm anti-reflection coated, 1 inch (25.4 mm) length by 1/2 inch (12.7 mm) width, N-BK7 plano-concave cylindrical lens with an effective focal length of -25 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Focal Length: -28.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
from CASTECH, Inc.
Note: Other sizes and focal are available upon request. Also the lens ring mounts are available upon request. [See More]
- Materials: BK7 Glass
- Length: 25.4
- Lens Form: Plano-Convex
- Width: 12.7
from CeNing Optics Co., Ltd.
CeNing Optics specializes in manufacturing high precision optical components, including optical lenses, prisms, beam splitters, waveplates, polarizers, interference filters, laser mirrors, BBO crystals, achromatic lenses, cylindrical lenses, and CaF2 windows. CeNing Optics produces optical... [See More]
- Materials: BK7 Glass
- Lens Application: Visible
- Lens Form: Plano-Convex
- Focal Length: 8 to 500
from Newport MKS
The CKV006AR.33 Plano-Concave Cylindrical Lens is a 1064 nm anti-reflection coated, 1 inch (25.4 mm) length by 1/4 inch (6.35 mm) width, N-BK7 plano-concave cylindrical lens with an effective focal length of -6.4 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Focal Length: -10.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
from Newport MKS
The CKV075 Plano-Concave Cylindrical Lens is an uncoated, 2 inch (50.8 mm) length by 1 inch (25.4 mm) width, N-BK7 plano-concave cylindrical lens with an effective focal length of -75 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Focal Length: -78.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
from Newport MKS
The CKX14 Plano-Convex Cylindrical Lens is an uncoated, 0.5 inch (12.50 mm) diameter, N-N-BK7 plano-convex cylindrical lens with an effective focal length of 100.00 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-N-BK7 precision cylindrical... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Focal Length: 98.68
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 2
from Newport MKS
The CKX150 Plano-Convex Cylindrical Lens is an uncoated, 2 inch (50.8 mm) length by 2 inch (50.8 mm) width, N-BK7 plano-convex cylindrical lens with an effective focal length of 150 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Lens Form: Plano-Convex; Plano-Convex
from Newport MKS
The CKX18-C Plano-Convex Cylindrical Lens is a Magnesium Fluoride (MgF2) coated,1.0 inch (25.00 mm) diameter, N-N-BK7 plano-convex cylindrical lens with an effective focal length of 100.00 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-N-BK7... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Focal Length: 97.98
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 3.16
from Newport MKS
The CKX019AR.33 Plano-Convex Cylindrical Lens is a 1064 nm anti-reflection coated, 1 inch (25.4 mm) length by 1/2 inch (12.7 mm) width, N-BK7 plano-convex cylindrical lens with an effective focal length of 19.0 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Lens Features: Antireflection Coating
- Lens Form: Plano-Convex; Plano-Convex
from Newport MKS
The CKX025 Plano-Convex Cylindrical Lens is an uncoated, 2 inch (50.8 mm) length by 1 inch (25.4 mm) width, N-BK7 plano-convex cylindrical lens with an effective focal length of 25.4 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Lens Form: Plano-Convex; Plano-Convex
from Newport MKS
The CKIT-1AR.18-P Master Cylindrical Lens Set is a 1000-1500 nm antireflection coated lens set containing 13 lenses. Newport's cylindrical lens sets provide a selection of research quality plano-convex and plano-concave lenses in convenient focal lengths from -200 to 300 mm. All lenses are edge... [See More]
- Materials: BK7 Glass; Grade A N-BK7
- Lens Features: Antireflection Coating
from Changchun Sunday Optics Co., Ltd.
Ball lens is used to improve the signal coupling between optical fiber, transmitter and detector, improve the signal quality, and can also be used in endoscopy, bar code scanning, aspherical lens preprocessed materials, sensors, etc. The ball lens has a short focal length, which minimizes the... [See More]
- Materials: BK7 Glass; Sapphire; BK7 JGS1 Sapphire
- Surface Quality: 20-10 Scratch / Dig
- Lens Application: Infrared
- Surface Flatness: λ/4
from Thorlabs, Inc.
At Thorlabs, we constantly reinforce our desire to serve at the pleasure of our customers. From this comes our desire to be connected to our industry in a way that far exceeds what would typically be expected of a vendor. Thorlabs lives this core principle by seeking to enhance, at every turn, the... [See More]
- Materials: BK7 Glass; SF5 Glass; SF11 Glass; S-LAH64,N-SF-10, N-SF-2
- Lens Application: Infrared; Visible; Ultraviolet
- Lens Form: Plano-Convex; Plano-Concave
- Focal Length: -1000 to 1000
from Foctek Photonics, Inc.
Cylindrical lenses are used to correct astigmatism in the eye and in rangefinders, to produce astigmatism, stretching a point of light into a line, they are widely used in bar code scanning, projection optics systems, laser measurement systems and holography. Cylindrical lenses are available in... [See More]
- Materials: BK7 Glass; H-K9, Fused Silica, N-SF10, Silicon
- Surface Quality: 60-40 Scratch / Dig
- Lens Form: Plano-Convex; Plano-Concave
- Surface Flatness: λ/2; λ/4
from Intrinsic Crystal Technology Co., Ltd. (ICC)
A cylindrical lens is typically used to focus, condense or expand incoming light. A cylindrical lens has one cylindrical surface, causing light to be focused in a single dimension or axis. It can also be used to expand the output of a laser diode into a symmetrical beam. ICC supply various kinds... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Ultra-violet grade Fused Silica; Silicon, Other
- Lens Application: Infrared; Visible; Ultraviolet
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Length: 1.2 to 350
from Hangzhou Shalom Electro-optics Technology Co., Ltd.
Features: • Substrate materials: Fine Annealed N-BK7. • Ideal for one-dimensional magnification of images, laser line generation, and diode laser beam shaping. • Various focal lengths (-3.9mm to -700mm) and dimensions. • Standard coating options: uncoated, 350-650nm, 650-1050nm,... [See More]
- Materials: BK7 Glass; N-BK7
- Focal Length: -100
- Lens Form: Plano-Concave; Plano-concave Cylindrical Lens
- Center Thickness: 3
from Tower Optical Corporation
Material : BK7 or equal [See More]
- Materials: BK7 Glass
- Focal Length: -500 to -12.7
- Lens Form: Plano-Concave
- Center Thickness: 2 to 3
from Rocky Mountain Instrument/RMI Laser
Cylindrical Lenses focus incoming light in one dimension only, such as in transforming a point image into a line image or changing the height of an image without changing its width or vice versa. RMI Cylindrical Lenses are designed per customer wavelength. Both sides can be coated with an RMI high... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica; Fused Silica, Cleartran, Barium fluoride, Magnesium Flouride, Silicon
- Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Surface Flatness: λ/4
from Daheng New Epoch Technology, Inc.
Similar to a Plano-Concave lens in profile, but only as cylinder instead of a sphere, this cylindrical lens focuses light only in one as a cylinder dimension. It can be used with cylindrical plano-convex lens together in beam expander applications. [See More]
- Materials: BK7 Glass
- Focal Length: -100 to -25
- Lens Form: Plano-Concave
- Center Thickness: 3 to 3.5
from EKSMA OPTICS
These lenses are symmetrical with equal radii on both sides. The biconcave lenses are often used to expand light beams or to increase focal lengths in optical systems, and are normally used in combination with other lenses. Among the many devices utilising biconcave lenses are laser beam expanders,... [See More]
- Materials: BK7 Glass; Ultra-violet grade Fused Silica
- Focal Length: 12.5 to 500
- Lens Form: Concave-Concave
- Center Thickness: 1.7 to 4.8
from Knight Optical (UK) Ltd
As the name suggests cylindrical lenses have surfaces which are sections of a cylinder rather than the normal sphere normally used. Cylindrical lenses (cylinder lenses) are often used to change the profile of laser beams, for example to correct for astigmatism and ellipticity in diode lasers or to... [See More]
- Materials: BK7 Glass
- Focal Length: 12.5
- Lens Form: Plano-Convex; Plano-Concave
- Edge Thickness: 1.5
from Ross Optical Industries
Negative cylinders have one flat surface and one concave surface and have a negative focal length. [See More]
- Materials: BK7 Glass
- Lens Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
- Lens Form: Plano-Concave
- Focal Length: -6.35
from Rainbow Research Optics, Inc.
Cylindrical lenses are designed for applications requiring one-dimensional shaping of a light source. They are offered in either plano-concave or plano-convex configurations, which are meant to expand or focus light, respectively. Your One-Stop Source for Cylindrical Lenses. From prototype to... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Ultra-violet grade Fused Silica; VUV CaF2
- Lens Application: Infrared; Visible; Ultraviolet
- Lens Form: Plano-Convex (optional feature); Plano-Concave (optional feature)
- Surface Quality: 20-10 Scratch / Dig
from Edmund Optics Inc.
PCV Cylinder lenses are commonly used to turn a collimated laser source into a line generator. PCV and PCX oblong cylinder lenses can be used together for beam expander applications.The thin lens approximation for the length of a line generated by a negative cylinder lens is: L = 2 * (r0/f) * (z +... [See More]
- Materials: BK7 Glass
- Center Thickness: 2
- Focal Length: -100
- Edge Thickness: 2.38
from Hangzhou Shalom Electro-optics Technology Co., Ltd.
Features: • Substrate materials: Fine Annealed N-BK7. • Ideal for one-dimensional condensation of images, laser line generation, and diode laser beam shaping. • Various focal lengths (4mm to 1000mm) and diversified dimensions. • Standard coating options: 350-650nm, 650-1050 nm,... [See More]
- Materials: BK7 Glass; N-BK7
- Focal Length: 10
- Lens Form: Plano-Convex; Plano-convex Cylindrical Lens
- Center Thickness: 2.61
from Daheng New Epoch Technology, Inc.
Similar to a Plano-Convex lens in profile, but only as a cylinder instead of a sphere, this cylindrical lens focuses light only in one dimension. It can also transform a point image into a line image or charging the height of an image without affecting its width. There are two circumference shapes,... [See More]
- Materials: BK7 Glass
- Focal Length: 25 to 400
- Lens Form: Plano-Convex
- Center Thickness: 3.2 to 12
from EKSMA OPTICS
Biconvex lenses are all symmetrical, having equal radii on both sides. They are recommended for virtual imaging of real objects, and for positive conjugate ratios from 0.2 up to 5. Outside of this ratios range plano-convex lenses are usually more suitable. Biconvex lenses are used as magnifiers,... [See More]
- Materials: BK7 Glass
- Focal Length: 12.7 to 1200
- Lens Form: Convex-Convex
- Center Thickness: 2 to 15
from Ross Optical Industries
Positive cylinders have one flat surface and one convex surface. [See More]
- Materials: BK7 Glass
- Lens Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
- Lens Form: Plano-Convex
- Focal Length: 6.35
from EKSMA OPTICS
Plano-convex axicons have one conical and one plano surface. Axicons can be defined by their apex angle. Conical lenses are used to transform the light into a ring or to create an approximation of non-diffractive Bessel beam from collimated Gaussian beam in the near field. A combination of axicons... [See More]
- Materials: BK7 Glass; Ultra-violet grade Fused Silica
- Length: 25.4 to 30
- Lens Form: Plano-Convex
- Surface Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
from Ross Optical Industries
Rod lenses are polished on the circumference and ground on both ends. Optical performance is similar to a cylinder lens. Collimated light passing through the diameter of the rod will be focused into a line. These components are used in a variety of laser and imaging applications. [See More]
- Materials: BK7 Glass
- Lens Application: Infrared (optional feature); Visible (optional feature); Ultraviolet (optional feature)
- Lens Form: Rod
- Length: 2
from EKSMA OPTICS
These lenses are used in laser scanners, spectroscopy, dye lasers, acousto-optics, optical processors and other similar applications. They are the best for circularization of diode laser outputs. Earlier remarks made about plano-convex and plano-concave spherical lenses, with regard to aberrations... [See More]
- Materials: BK7 Glass; Ultra-violet grade Fused Silica
- Focal Length: 15 to 500
- Lens Form: Plano-Convex
- Center Thickness: 1.4 to 3.8
from EKSMA OPTICS
These lenses are thicker at the edge than in the centre and flat on one side. The plano-concave lenses are used to expand light beams or to increase focal lengths in optical systems. They are often employed for beam expansion of high peak power pulsed lasers. A beam incident on a concave surface... [See More]
- Materials: BK7 Glass; Calcium Fluoride; Ultra-violet grade Fused Silica
- Focal Length: 25 to 5000
- Lens Form: Plano-Concave
- Center Thickness: 1.3 to 4.7
from EKSMA OPTICS
These lenses are used to focus light to a thin line in laser scanners, spectroscopy, dye lasers, acousto-optics, optical processors and other similar applications. They are the best for circularization of diode laser outputs, energy collection for linear detectors or for coupling to a slit input. [See More]
- Materials: BK7 Glass; Ultra-violet grade Fused Silica
- Focal Length: 15 to 1500
- Lens Form: Plano-Convex
- Center Thickness: 2.2 to 10