λ/4 Spherical Lenses
Description
?/4 Spherical Lenses are specialized optical components designed to manipulate light by focusing or diverging it. These lenses are characterized by their spherical surfaces and are typically used to control the phase of light waves, particularly in applications requiring precise optical path adjustments.
Working Principle
The working principle of ?/4 Spherical Lenses involves the manipulation of light waves to achieve a quarter-wavelength phase shift. This is accomplished by the lens's spherical geometry, which allows it to focus or diverge light effectively. The phase shift is crucial in applications where interference patterns or precise wavefront control is necessary. These lenses are useful because they can minimize spherical aberrations, which are common in traditional spherical lenses, thereby improving the quality and accuracy of optical systems.
Applications
Specific applications of ?/4 Spherical Lenses include their use in laser systems for beam shaping and phase correction. They are also employed in optical instruments where precise wavefront control is required, such as interferometers and certain types of microscopes. Additionally, these lenses can be used in telecommunications for fiber optic systems to manage light coupling and signal integrity.
Advantages over other Spherical Lenses
?/4 Spherical Lenses offer advantages over traditional spherical lenses by providing enhanced control over light phase and minimizing spherical aberrations. This results in improved image quality and resolution, making them ideal for high-precision optical systems. Their ability to achieve a quarter-wavelength phase shift is particularly beneficial in applications requiring fine wavefront adjustments.
Limitations
One limitation of ?/4 Spherical Lenses is their complexity in manufacturing, which can lead to higher costs compared to standard spherical lenses. Additionally, their specialized nature means they may not be suitable for all optical applications, particularly those that do not require precise phase control.
Considerations
When considering ?/4 Spherical Lenses, it is important to account for the initial costs, which can be higher due to their specialized design and manufacturing requirements. Operating expenses may also be elevated if the lenses require precise alignment and maintenance to ensure optimal performance. Durability and accuracy are generally high, but regular maintenance may be necessary to maintain their precision. Replacement and maintenance costs should be factored into the overall budget for systems utilizing these lenses.
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Surface Flatness: λ/4
- Diameter: 6.35
- Lens Form: Concave-Concave
- Radius of Curvature: -6.85
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]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Concave-Concave
- Focal Length: -250 to -20
from Newport MKS
The CSV100AR.10 Plano-Concave Cylindrical Lens is a 245 to 440 nm anti-reflection coated, fused silica plano-concave cylindrical lens with a 2 inch (50.8 mm) length and a 1 inch (25.4 mm) width and an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: -102
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 2.5
from Changchun Yutai Optics Co., Ltd.
What is the difference between monocrystalline and polycrystalline silicon?. Monocrystalline silicon: structurally ordered, excellent performance, suitable for high-end applications, but high cost. Polycrystalline silicon: structured polycrystalline, slightly inferior performance, suitable for... [See More]
- Surface Flatness: λ/4
- Surface Quality: 40-20 Scratch / Dig
- Materials: Silicon
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Surface Flatness: λ/4
- Diameter: 6.35
- Lens Form: Convex-Convex
- Radius of Curvature: 5.62
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]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Convex-Convex
- Focal Length: 25 to 500
from Newport MKS
The CSV150AR.10 Plano-Concave Cylindrical Lens is a 245 to 440 nm anti-reflection coated, fused silica plano-concave cylindrical lens with a 2 inch (50.8 mm) length and a 2 inch (50.8 mm) width and an effective focal length of -150 mm. It is designed to meet the demanding requirements of laser... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: -152
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 2.5
from Changchun Yutai Optics Co., Ltd.
A Plano-Convex (PCX) or Double-Convex (DCX) lens causes light to focus to a point, while a Plano-Concave (PCV) or Double-Concave (DCV) lens causes the light traveling through the lens to diverge. Yutai's N-BK7(H-K9L) plano-convex lenses are available uncoated or with a variety of antireflection... [See More]
- Surface Flatness: λ/4
- Surface Quality: 40-20 Scratch / Dig
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Surface Flatness: λ/4
- Diameter: 6.35
- Lens Form: Plano-Concave
- Radius of Curvature: -6.46
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]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Concave-Concave
- Focal Length: -100 to 1000
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]
- Surface Flatness: λ/2; λ/4
- Focal Length: -28.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
from CASTECH, Inc.
Other diameter, focus length ,and material are available upon request. [See More]
- Surface Flatness: λ/4
- Diameter: 6.35
- Lens Form: Plano-Convex
- Radius of Curvature: 6.56
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]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Plano-Concave
- Focal Length: -500 to -10
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]
- Surface Flatness: λ/2; λ/4
- Focal Length: -10.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
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]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Plano-Convex
- Focal Length: 4 to 1000
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]
- Surface Flatness: λ/2; λ/4
- Focal Length: -78.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
from Newport MKS
The CSX025AR.33 Plano-Convex Cylindrical Lens is a 1064 nm anti-reflection coated, fused silica, plano-convex cylindrical lens with a 2 inch (50.8 mm) length, a 19.0 mm width and an effective focal length of 25.4 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 20.2
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 7.88
from Newport MKS
The CSX100AR.33 Plano-Convex Cylindrical Lens is a 1064 nm anti-reflection coated, fused silica, plano-convex cylindrical lens with a 2 inch (50.8 mm) length, a 1 inch (25.4 mm) width and an effective focal length of 100 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 92.98
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 4.79
from Newport MKS
The CSX150AR.33 Plano-Convex Cylindrical Lens is a 1064 nm anti-reflection coated, fused silica, plano-convex cylindrical lens with a 2 inch (50.8 mm) length, a 2 inch (50.8 mm) width and an effective focal length of 150 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 145
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 7.85
from Newport MKS
The CKX012AR.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 12.7 mm. It is designed to meet the demanding requirements of laser electro-optic... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 7.49
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 7.9
from Newport MKS
The CKX150AR.14 Plano-Convex Cylindrical Lens is a 430 to 700 nm anti-reflection coated, 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... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 145
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 7.28
from Newport MKS
The CKX025AR.14 Plano-Convex Cylindrical Lens is a 430 to 700 nm anti-reflection coated, 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... [See More]
- Surface Flatness: λ/2; λ/4
- Focal Length: 16.98
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 12.79
from HG Optronics, Inc.
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. Achromatic Lenses, which... [See More]
- Surface Flatness: λ/2; λ/4
- Diameter: 6 to 25.4
- Focal Length: -50 to 120
- Materials: Crown Glass; Flint Glass; Crown Glass&Flint Glass CDGM, Schott, Ohara etc
from Foctek Photonics, Inc.
FOCtek provides five kinds of spheric lens forms, or shapes, that determine the imaging Characteristics. of the lenses, they are plano-convex, plano-concave, Double-convex, Double-concave and Meniscus. Plano-convex lens has a positive focal length, which makes it ideal for collecting and focusing... [See More]
- Surface Flatness: λ/4
- Materials: BK7 Glass; Calcium Fluoride; Sapphire; H-K9, Fused Silica, N-SF10, Silicon
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Surface Quality: 10-5 Scratch / Dig; 60-40 Scratch / Dig
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]
- Surface Flatness: λ/2; λ/4
- Lens Application: Infrared; Visible; Ultraviolet
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Focal Length: -1000 to 750
from Fairfield Crystal Technology, LLC.
OPTICAL COMPONENT MANUFACTURING. Fairfield Crystal provides component manufacturing for your most challenging designs and applications. Combined with our expertise in crystal growth our component fabrication team is able to manufacture highly polished single crystal lenses, prisms, wedges,... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10; λ/20
- Materials: Calcium Fluoride; Zinc Selenide
- Lens Application: Infrared; Visible; Ultraviolet
- Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig; 80-50 Scratch / Dig
from Ross Optical Industries
Similar to Standard Achromats but smaller in diameter, these Micro Achromats provide good spherical and chromatic correction, enabling them to be used in laser applications. [See More]
- Surface Flatness: λ/4
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 6
from Changchun Sunday Optics Co., Ltd.
The H-K9L Bi convex lens has excellent transmittance from visible to near infrared (350-2000nm) and is commonly used in limited imaging applications.H-K9L(N-BK7) is a commonly used optical glass for the preparation of high-quality optical elements. When the additional advantages of UV melting quartz... [See More]
- Surface Flatness: λ/4
- Lens Application: Infrared; Visible
- Lens Form: Plano-Convex
- Materials: Sapphire; H-K9L, JGS1, Sapphire
from Artifex Engineering
Double-Concave (DCV) lenses have two inward curved surfaces. DCV lenses have a negative focal length and are used for image reduction or to spread light. [See More]
- Surface Flatness: λ/4
- Lens Application: Visible
- Lens Form: Concave-Concave
- Focal Length: -30 to -6.3
from ECOPTIK (CHANGCHUN) LTD
Achromatic Lenses are used to minimize or eliminate chromatic aberration. The achromatic design also helps minimize spherical aberrations. Achromatic Lenses are ideal for a range of applications, including fluorescence microscopy, image relay, inspection, or spectroscopy. An Achromatic Lens, which... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Focal Length: 50 to 2000
- Lens Application: Visible
- Diameter: 6 to 200
from Rocky Mountain Instrument/RMI Laser
Spherical Lenses are the most common lenses in optical systems design. RMI manufactures standard and custom spherical lenses from a wide range of materials with a wide range of size and shape specifications. Both sides can be coated with an RMI high efficiency narrowband, anti-reflective coating. [See More]
- Surface Flatness: λ/4; λ/10
- Materials: BK7 Glass; Calcium Fluoride; Germanium; Sapphire; Zinc Selenide; Ultra-violet grade Fused Silica; Fused Silica, Cleartran, Barium fluoride, Magnesium Flouride, Silicon
- Lens Form: Plano-Convex; Plano-Concave; Convex-Convex; Concave-Concave
- Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig
from HG Optronics, Inc.
Rod Lenses are used for fiber coupling and laser diode beam shaping, lenses with a 0mm working distance are ideal for collimation of single and multi-mode optical fibers and laser diodes because the lens can be positioned and glued directly to the emission source. For focusing applications, or in... [See More]
- Surface Flatness: λ/4
- Materials: Ultra-violet grade Fused Silica; Schott, Ohara, CDGM, Corning Fused Silica and JGS1
- Diameter: 1 to 15
- Surface Quality: 40-20 Scratch / Dig
from Ross Optical Industries
Our catalog Laser Achromats are designed primarily for a diode laser with an 830nm wavelength. They perform well through the near-infrared spectrum. They have been corrected for spherical aberration, coma and astigmatism. They are intended to be used for diode beam manipulation. [See More]
- Surface Flatness: λ/4
- Lens Application: Infrared; Visible (optional feature); Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 10
from Changchun Sunday Optics Co., Ltd.
The roles of aspheric is to Simplify the system structure, shorten the tube length, reduce the weight of the system, improve the imaging quality, and make the optical system extend to the infrared and ultraviolet bands.With the development, , the cost of aspheric surface processing has been... [See More]
- Surface Flatness: λ/4
- Lens Application: Infrared; Ultraviolet
- Lens Form: Plano-Convex
- Materials: Polycrystal CaF2, Singlecrystal CaF2
from ECOPTIK (CHANGCHUN) LTD
A cemented cylindrical lens can minimize chromatic aberration, so it can be used to focus a single direction of a multi-color light beam. Unlike a spherical lens that produces a point focusing spot, a cylindrical lens can produce a linear focusing spot. Our cylindrical achromatic doublets are... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Diameter: 6 to 200
- Focal Length: 50 to 2000
- Center Thickness: 2 to 50
from HG Optronics, Inc.
Optical domes are lenses with two concentric spherical surfaces. Sometimes they are being referred to as bent plan parallel plates. Consequently it is customary to define parallelism between two surfaces as the maximum thickness variation between the two surfaces. In perfect domes the convex radius... [See More]
- Surface Flatness: λ/4
- Materials: Sapphire; Ultra-violet grade Fused Silica; Optical glass, Fused Silica, Silicon, Sapphire, crystals
- Diameter: 10 to 200
- Surface Quality: 40-20 Scratch / Dig
from ECOPTIK (CHANGCHUN) LTD
A double concave lens has negative focal length, thereby causing collimated incident light to diverge. Double concave lens has equal radius of curvature on both side of lens. They are generally used to expand light or increase focal length in existing system, such as beam expander and projection... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Focal Length: -2000 to -50
- Lens Form: Concave-Concave
- Diameter: 2 to 300
from HG Optronics, Inc.
Plano Concave Lenses are ideal for beam expansion, light projection, or for expanding an optical system's focal length. Plano Concave Lenses, which have one concave surface, are Optical Lenses with negative focal lengths. Plano-Concave Lenses should be shaped with the plano, or flat, surface towards... [See More]
- Surface Flatness: λ/4; λ/10
- Focal Length: -500 to -8
- Lens Form: Plano-Concave
- Diameter: 6 to 50.8
from ECOPTIK (CHANGCHUN) LTD
The double convex lens is symmetrical across both its horizontal and vertical axis. Each of the lens' two faces can be thought of as originally being part of a sphere. The fact that a double convex lens is thicker across its middle is an indicator that it will converge rays of light that travel... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Focal Length: 50 to 2000
- Lens Form: Convex-Convex
- Diameter: 2 to 300
from HG Optronics, Inc.
A Plano-Convex lens causes light to focus to a point,it has a positive focal length,which is ideal for light collimation or for focusing applications utilizing monochromatic illumination, in a range of industries. HG OPTRONICS offers Plano-Convexlenses with a variety of coating options. 1.1. What is... [See More]
- Surface Flatness: λ/4; λ/10
- Lens Application: Ultraviolet
- Lens Form: Plano-Convex
- Focal Length: 8 to 250
from ECOPTIK (CHANGCHUN) LTD
BRD Optical provide meniscus lens in both positive and negative focal lengths. These lenses are useful when used with another lenses to increase or decrease the focal length. This lens element configuration does not introduce any additional coma or spherical aberrations [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Diameter: 2 to 300
- Focal Length: -2000 to -50
- Center Thickness: 2 to 20
from ECOPTIK (CHANGCHUN) LTD
Plano concave lens bend parallel input rays so they diverge from one another on the output side of the lens and hence have a negative focal length. The spherical aberration of the plano concave lenses is negative and can be used to balance aberrations created by other lenses. Similar to the plano... [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10
- Focal Length: -2000 to -50
- Lens Form: Plano-Concave
- Diameter: 2 to 300
from ECOPTIK (CHANGCHUN) LTD
Plano-convex lenses are positive focal length elements that have one spherical surface and one flat surface. These lenses are designed for infinite conjugate (parallel light) use or simple imaging in non-critical applications. These optic lenses are ideal for all-purpose focusing elements. [See More]
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10; λ/20
- Diameter: 2 to 300
- Lens Form: Convex-Convex
- Materials: Sapphire; Optical Glass, Fused Silica