40-20 Scratch / Dig Spherical Lenses
Description
40-20 Scratch / Dig Spherical Lenses are optical components characterized by their surface quality, which is defined by the size and number of surface defects such as scratches and digs. The "40-20" designation indicates that the average diameter of the digs is 0.20 mm and the average length of the scratches is 0.40 mm. These lenses are designed to meet specific optical performance criteria, ensuring a balance between quality and cost-effectiveness.
Working Principle
Spherical lenses work by refracting light that passes through them, focusing or diverging the light rays depending on the lens shape. The 40-20 scratch/dig specification ensures that the lens surface is smooth enough to minimize scattering and distortion of light, which is crucial for maintaining the integrity of the optical path. This level of surface quality is particularly important in applications where precision and clarity are required, as it helps to reduce optical aberrations and improve image quality.
Applications
40-20 Scratch / Dig Spherical Lenses are commonly used in various optical systems where moderate surface quality is acceptable. They are suitable for applications in imaging systems, such as cameras and microscopes, where high precision is not the primary concern but cost-effectiveness is. These lenses can also be used in educational settings for demonstrations and experiments where the highest optical quality is not necessary.
Advantages over other Spherical Lenses
Compared to lenses with lower surface quality ratings, such as 60-40 or 80-50, 40-20 Scratch / Dig Spherical Lenses offer improved optical performance with fewer surface defects. This results in better light transmission and reduced scattering, making them a more suitable choice for applications that require a balance between performance and cost. They provide a higher level of precision than lenses with higher scratch/dig numbers, making them a preferred option for mid-range optical systems.
Limitations
One limitation of 40-20 Scratch / Dig Spherical Lenses is that they may not be suitable for high-precision applications, such as laser systems, where even minor surface defects can lead to significant performance issues. In such cases, lenses with a higher surface quality rating, like 20-10, would be more appropriate. Additionally, these lenses may not be ideal for environments with extreme conditions, as their surface quality might not withstand harsh usage without degradation.
Considerations
When selecting 40-20 Scratch / Dig Spherical Lenses, it is important to consider the initial costs and operating expenses. These lenses offer a cost-effective solution for applications that do not require the highest level of optical precision. However, their durability and maintenance requirements should be evaluated based on the specific application environment. While they provide a good balance between quality and cost, frequent replacement or maintenance might be necessary in demanding conditions, potentially increasing long-term expenses.
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Surface Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Lens Application: Visible
- Lens Form: Concave-Concave
- Focal Length: -250 to -20
from Newport MKS
The KBC016AR.18 Bi-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 12.7 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-concave lenses are... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -101
- Lens Form: Concave-Concave; Bi-Concave
- Diameter: 12.7
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 Quality: 40-20 Scratch / Dig
- Surface Flatness: λ/4
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Lens Application: Visible
- Lens Form: Convex-Convex
- Focal Length: 25 to 500
from Newport MKS
The KBC037AR.18 Bi-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 25.4 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-concave lenses are... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -101
- Lens Form: Concave-Concave; Bi-Concave
- Diameter: 25.4
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 Quality: 40-20 Scratch / Dig
- Surface Flatness: λ/4
from CASTECH, Inc.
Other sizes and focal length are available upon request. Also the lens ring mounts are available upon request. [See More]
- Surface Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Lens Application: Visible
- Lens Form: Concave-Concave
- Focal Length: -100 to 1000
from Newport MKS
The KBC082AR.18 Bi-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 50.8 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-concave lenses are... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -101
- Lens Form: Concave-Concave; Bi-Concave
- Diameter: 50.8
from CASTECH, Inc.
Other diameter, focus length ,and material are available upon request. [See More]
- Surface Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Lens Application: Visible
- Lens Form: Plano-Concave
- Focal Length: -500 to -10
from Newport MKS
The KBC010AR.18 Bi-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 6.35 mm diameter, N-BK7 Bi-concave lens with an effective focal length of -12.7 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-concave lenses are... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -13.29
- Lens Form: Concave-Concave; Bi-Concave
- Diameter: 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]
- Surface Quality: 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Lens Application: Visible
- Lens Form: Plano-Convex
- Focal Length: 4 to 1000
from Newport MKS
The KBX022AR.18 N-BK7 Bi-Convex Lens is a 1/2 inch (12.7 mm) diameter, 1000 to 1550 nm anti-reflection coated, N-BK7 bi-convex lens with an effective focal length of 12.7 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-convex... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: 10.26
- Lens Form: Convex-Convex; Bi-Convex
- Diameter: 12.7
from Newport MKS
The KBX064AR.18 N-BK7 Bi-Convex Lens is a 1 inch (25.4 mm) diameter, 1000 to 1550 nm anti-reflection coated, N-BK7 bi-convex lens with an effective focal length of 100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-convex... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: 98.47
- Lens Form: Convex-Convex; Bi-Convex
- Diameter: 25.4
from Newport MKS
The KBX154AR.18 N-BK7 Bi-Convex Lens is a 2 inch (50.8 mm) diameter, 1000 to 1550 nm anti-reflection coated, N-BK7 bi-convex lens with an effective focal length of 100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-convex... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: 96.83
- Lens Form: Convex-Convex; Bi-Convex
- Diameter: 50.8
from Newport MKS
The KBX013AR.18 N-BK7 Bi-Convex Lens is a 1/4 inch (6.35 mm) diameter, 1000 to 1550 nm anti-reflection coated, N-BK7 bi-convex lens with an effective focal length of 12.7 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision bi-convex... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: 11.37
- Lens Form: Convex-Convex; Bi-Convex
- Diameter: 6.35
from Newport MKS
The CAPX10 is a Plano-Convex Infrared Lens, made of CaF2 material. It has a diameter of 12.7 mm, and an effective focal length of 25.4 mm. Calcium Fluoride lenses are an excellent choice of material for making lenses for UV to NIR wavelengths (180 nm - 8 μm). It has high average transmission... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Diameter: 12.7
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 3
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 Quality: 40-20 Scratch / Dig
- Focal Length: -102
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 2.5
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 Quality: 40-20 Scratch / Dig
- Focal Length: -152
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 2.5
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 Quality: 40-20 Scratch / Dig
- Focal Length: -28.96
- Lens Form: Plano-Concave; Plano-Concave
- Center Thickness: 6
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 Quality: 40-20 Scratch / Dig
- 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]
- Surface Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- 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 Quality: 40-20 Scratch / Dig
- Focal Length: 16.98
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 12.79
from Newport MKS
The CSX12 Plano-Convex Cylindrical Lens is an uncoated, 12.50 mm diameter, UV Fused Silica plano-convex cylindrical lens with an effective focal length of 50.00 mm. It is designed to meet the demanding requirements of laser electro-optic applications. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: 48.63
- Lens Form: Plano-Convex; Plano-Convex
- Center Thickness: 2
from Newport MKS
The KPC016AR.18 N-BK7 Plano-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 12.7 mm diameter, N-BK7, plano-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision plano-concave... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -102
- Lens Form: Plano-Concave; Plano-Concave
- Diameter: 12.7
from Newport MKS
The KPC034AR.18 N-BK7 Plano-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 25.4 mm diameter, N-BK7, plano-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision plano-concave... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -102
- Lens Form: Plano-Concave; Plano-Concave
- Diameter: 25.4
from Newport MKS
The KPC076AR.18 N-BK7 Plano-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 50.8 mm diameter, N-BK7, plano-concave lens with an effective focal length of -100 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision plano-concave... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -102
- Lens Form: Plano-Concave; Plano-Concave
- Diameter: 50.8
from Newport MKS
The KPC013AR.18 N-BK7 Plano-Concave Lens is a 1000 to 1550 nm anti-reflection coated, 6.35 mm diameter, N-BK7, plano-concave lens with an effective focal length of -12.5 mm. It is designed to meet the demanding requirements of laser electro-optic applications. Newport's N-BK7 precision plano-concave... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Focal Length: -14.14
- Lens Form: Plano-Concave; Plano-Concave
- Diameter: 6.35
from Tower Optical Corporation
Ball lenses are used for various tasks such as improving the coupling between optical fibers and the emitters or detectors they interface with. Standard size lenses range from 1.0mm to 5.0mm. Custom made sizes or special materials are also available. All Ball lenses can be ordered with full-surface... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Materials: BK7 Glass (optional feature); Ultra-violet grade Fused Silica (optional feature)
- Diameter: 1 to 10
- Lens Features: Antireflection Coating (optional feature)
from HG Optronics, Inc.
Double Concave Lenses are used in beam expansion, image reduction, or light projection applications. These lenses are also ideal for expanding the focal length of an optical system. Double Concave Lenses, which have two concave surfaces, are Optical Lenses with negative focal lengths. HG OPTRONICS... [See More]
- Surface Quality: 10-5 Scratch / Dig; 40-20 Scratch / Dig
- Focal Length: -500 to -10
- Lens Form: Concave-Concave
- Diameter: 10 to 50
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 Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig; 80-50 Scratch / Dig
- 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 Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig; 80-50 Scratch / Dig
- Materials: Calcium Fluoride; Zinc Selenide
- Lens Application: Infrared; Visible; Ultraviolet
- Surface Flatness: λ/2; λ/4; λ/5; λ/8; λ/10; λ/20
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 Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 6
from Edmund Optics Inc.
Discounts up to 80% Off. Quantities Extremely Limited. Final Sale, No Returns. Shop the EO Mega Clearance presentations for the hottest deals on component-level products. Quickly browse the best optics, imaging, and photonics deals you will ever see. Quantities are extremely limited and are sold on... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Diameter: 6.25
- Focal Length: 25
- Center Thickness: 2.3
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 Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig
- 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 Flatness: λ/4; λ/10
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Focal Length: 50 to 2000
- Lens Application: Visible
- Diameter: 6 to 200
from Rainbow Research Optics, Inc.
Your One-Stop Source for Spherical Lenses. From prototype to production, Rainbow Research Optics, Inc (RROI) designs, manufactures and coats spherical lenses. Spherical lenses are one of the most basic optical components to produce. With complete in-house capabilities, RROI is able to offer... [See More]
- Surface Quality: 10-5 Scratch / Dig; 20-10 Scratch / Dig; 40-20 Scratch / Dig
- Lens Application: Infrared; Visible; Ultraviolet
- Lens Form: Convex-Convex (optional feature); Concave-Concave (optional feature)
- Diameter: 3 to 406
from Tower Optical Corporation
A Drum Lens is a variation of a ball lens where a portion of the ball is ground down to a smaller diameter. These lenses are used in similar applications to those of ball lenses. The Drum Lens adds the ability to handle and package it in a different way. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Materials: BK7 Glass
- Diameter: 2 to 4
from HG Optronics, Inc.
Double Convex Lenses are used in image relay applications, or for imaging objects at close conjugates. Double Convex Lenses have positive focal lengths, along with two convex surfaces with equal radii. Aberrations will increase as the conjugate ratios increase. Double-Convex Lenses are used in a... [See More]
- Surface Quality: 10-5 Scratch / Dig; 40-20 Scratch / Dig
- Focal Length: 10 to 500
- Lens Form: Convex-Convex
- Diameter: 10 to 50
from Ross Optical Industries
Bi-concave lenses have two inward curved surfaces. These lenses have a negative focal length. Our catalog bi-concave lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion are cancelled out due to the symmetry. They are used... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Concave-Concave
- Focal Length: -5
from Edmund Optics Inc.
AR Coated to Provide <0.4% Reflectance per Surface for 425 - 675nm. Designed for 0 ° Angle of Incidence. Double-Convex (DCX) Lenses have two outward curved surfaces, a positive focal length and are useful for 1:1 imaging and in multi-element systems.These lenses are available uncoated or... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Visible
- Lens Form: Convex-Convex
- Focal Length: 10
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Diameter: 6 to 200
- Focal Length: 50 to 2000
- Center Thickness: 2 to 50
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 Quality: 40-20 Scratch / Dig
- Materials: Ultra-violet grade Fused Silica; Schott, Ohara, CDGM, Corning Fused Silica and JGS1
- Diameter: 1 to 15
- Surface Flatness: λ/4
from Ross Optical Industries
Bi-convex lenses have a positive focal length. Our catalog bi-convex lenses have an identical curvature on both sides of the lens and are therefore symmetric. At unit conjugation, coma and distortion cancel out due to the symmetry. They can be used to focus incoming light. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 6
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Focal Length: -2000 to -50
- Lens Form: Concave-Concave
- Diameter: 2 to 300
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 Quality: 40-20 Scratch / Dig
- Materials: Sapphire; Ultra-violet grade Fused Silica; Optical glass, Fused Silica, Silicon, Sapphire, crystals
- Diameter: 10 to 200
- Surface Flatness: λ/4
from Ross Optical Industries
Similar to standard Bi-Convex Lenses but smaller in diameter, these micro Bi-Convex Lenses are ideal for low conjugate ratios systems. Used for converging light beams. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 3
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Focal Length: 50 to 2000
- Lens Form: Convex-Convex
- 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 Quality: 10-5 Scratch / Dig; 40-20 Scratch / Dig
- Focal Length: -500 to -8
- Lens Form: Plano-Concave
- Diameter: 6 to 50.8
from Ross Optical Industries
Fused Silica material has advantages over regular optical glasses. It is often used in deep UV or NIR systems due to its high transmission in those spectral regions. Due to the material ’s inherently hard SiO2 amorphous structure and its exceptional chemical homogeneity, it displays high laser... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Plano-Convex
- Focal Length: 15
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Diameter: 2 to 300
- Focal Length: -2000 to -50
- Center Thickness: 2 to 20
from HG Optronics, Inc.
The Positive Meniscus Lenses are a convex-concave lens, but it is thicker at the center than at the edges. They are felt polished and are used universally in the ophthalmic industry where convention dictates that lens power be specified in Diopters. The Negative Meniscus Lenses are a convex-concave... [See More]
- Surface Quality: 10-5 Scratch / Dig; 40-20 Scratch / Dig
- Lens Application: Infrared
- Lens Form: convex-concave
- Focal Length: -600 to 100
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 Quality: 40-20 Scratch / Dig
- Lens Application: Infrared; Visible (optional feature); Ultraviolet (optional feature)
- Lens Form: Convex-Convex
- Focal Length: 10
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 Quality: 20-10 Scratch / Dig; 40-20 Scratch / Dig; 60-40 Scratch / Dig
- Focal Length: -2000 to -50
- Lens Form: Plano-Concave
- 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 Quality: 10-5 Scratch / Dig; 40-20 Scratch / Dig
- Lens Application: Ultraviolet
- Lens Form: Plano-Convex
- Focal Length: 8 to 250
from Ross Optical Industries
Negative Achromats consist of two optical components, a crown and a flint glass lens, cemented together. The crown is usually a bi-concave lens. As is true to all Achromats, they are corrected for color and on-axis spherical aberration. They are used predominantly to extend focal lengths in... [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Concave-Concave
- Focal Length: -20
from Ross Optical Industries
These lenses have one flat surface and one concave surface. They have a negative focal length and are used to diverge incoming light, or to increase focal length in an existing optical system. They can be used in beam expanders and projection systems. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Plano-Concave
- Focal Length: -10
from Ross Optical Industries
Similar to standard Plano-Convex lenses but smaller in diameter, these Micro Plano-Convex lenses are ideal for lightweight and compact instruments. [See More]
- Surface Quality: 40-20 Scratch / Dig
- Lens Application: Infrared (optional feature); Visible; Ultraviolet (optional feature)
- Lens Form: Plano-Convex
- Focal Length: 1.6