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Supplier: Knight Optical Ltd.
Description: Doublet lens. negative. 63mmf.l x 25mmdia Doublet lenses are used to produce a higher quality image than singlet lenses of which they easily out perform, even in monochromatic light. Doublet lenses are made up of two different types of glass, a flint and crown glass. These doublet lenses
- Lens Type: Achromats
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Supplier: Newport Corporation
Description: MIL-M-13508, MIL-C-675C, MIL-C-14806, 150°C cement limitation
- Number of Lenses: Doublet
- Lens Application: Infrared, Visible
- Surface Quality: 40-20 Scratch / Dig
- Surface Flatness:
/8
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Supplier: Knight Optical Ltd.
Description: Doublet lens. commercial. 99mmf.l x 26mmdia These commercial achromatic doublets are similar the quality versions but suitable for general purpose use.
- Lens Type: Achromats
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Supplier: Gurley Precision Instruments
Description: Made of two lenses cemented together to create a doublet, Single Layer MgF2 coatings are recommended for these lenses
- Number of Lenses: Doublet
- Surface Quality: 60-40 Scratch / Dig
- Lens Type: Achromats, Spherical Lens
- Materials: Other
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Supplier: Optarius
Description: 635 nm wavelength region
- Number of Lenses: Doublet
- Lens Application: Visible
- Surface Quality: 60-40 Scratch / Dig
- Antireflection Coating: Yes
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Supplier: Universe Kogaku (America) Inc.
Description: Achromatic doublet
- Number of Lenses: Doublet
- Lens Application: Visible
- Antireflection Coating: Yes
- Mounted: Yes
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Supplier: Thorlabs, Inc.
Description: This AR-coated, air-spaced achromatic doublet lens provides excellent transmission in the 3 - 5 µm range. It incorporates two AR-coated lenses, one with a germanium substrate and another with a silicon substrate. Each achromatic doublet has three design wavelengths: 3 µm, 4 µm
- Number of Lenses: Doublet
- Lens Application: Infrared
- Surface Quality: 60-40 Scratch / Dig
- Antireflection Coating: Yes
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Supplier: Knight Optical Ltd.
Description: with an achromatic doublet to create a lens pair with a shorter focal length than one lens can achieve. We can offer custom meniscus lenses to meet your requirements or alternatively edge stock lenses for a quick turnaround, please enquire. Please note we also stock a full range of negative
- Lens Form: Meniscus
- Lens Type: Meniscus
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Supplier: Rolyn Optics Company
Description: Achromatic doublets are far superior to simple lenses because they are corrected for two color lines, specifically C(656.27nm) and F(486.13nm). Focal length is specified for the D line (589.3nm) in an air medium with parallel incident light. Air spaced achromats may be used where even greater
- Number of Lenses: Doublet
- Lens Application: Visible
- Surface Quality: 80-50 Scratch / Dig
- Antireflection Coating: Yes
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Supplier: Thorlabs, Inc.
Description: a plano-convex lens (rather than a bi-convex lens which also causes collimated incident light to converge). Also, when image quality is not critical, plano-convex lenses can also be used as an economical substitute for achromatic doublets.
- Lens Type: Spherical Lens
- Lens Application: Visible
- Materials: BK7 Glass
- Surface Quality: 20-10 Scratch / Dig
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Why Use an Achromatic Lens?
An achromatic lens consists of two optical components cemented together, usually a positive low-index (crown) element and a negative high-index (flint) element. The additional design freedom provided by using doublets allows for further optimization of performance not possible with singlets
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System Design Relating to Lens Assemblies (.pdf)
diameter. solutions printed on either transparent glass or chromium-. plano-convex BK-7 uncoated lens (lens 2) and a (typically). coated microscope slides. The chromium surface has the. 150200 mm fl, anti-reflection coated, achromatic doublet. advantage of being reflective (reflectivity $60%), which
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Focusing Objective Theory (.pdf)
properties. to correct for chromatic aberrations. Achromatic Focusing. Aberration Correction. Objectives are aberration corrected at two wavelengths. A Bestform lens singlet is corrected for minimal spheri-. simultaneously. A doublet consisting of two lenses of differ-. cal aberration. However, other
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Focusing Objective Theory
properties. to correct for chromatic aberrations. Achromatic Focusing. Aberration Correction. Objectives are aberration corrected at two wavelengths. A Bestform lens singlet is corrected for minimal spheri-. simultaneously. A doublet consisting of two lenses of differ-. cal aberration. However, other
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Fiber Optic Collimators
into a single lens, either spherical or aspherical, their focal distances are different, often called chromatic aberration. Achromatic doublets are frequently used to reduce the effect. SINGLEMODE OR MULTIMODE: Singlemode fibers produce almost mathematically perfect Gaussian beams. A collimated Gaussian beam
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Adaptive wavefront correction in two-photon microscopy using coherence-gated wavefront sensing
, Germany), near-infrared achromatic doublets L1 (focal length 5 cm, NT45–803; Edmund Optics), L2 (focal length 8 cm, 322393; Linos), L3 (focal length 7.5 cm, AC254–075-B; Thorlabs, Newton, NJ), L4 (focal length 15 cm, AC254–150-B; Thorlabs), L5 (focal length 20 cm, AC254–200-B; Thorlabs), L6 (focal
Engineering Web Search: Achromatic Lens Doublet Top
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Lens (optics) - Wikipedia, the free encyclopedia
For other uses, see Lens. A lens. Lenses can be used to focus light.
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Achromatic lens - Wikipedia, the free encyclopedia
An achromatic doublet brings red and blue light to the same focus, and is the earliest example of an achromatic lens.
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Achromatic Lenses | Edmund Optics
The two elements composing an achromatic doublet lens (literally, "a lens with no color") are paired together for their ability to correct the color
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Why Use an Achromatic Lens? - Edmund Optics
In other words, an achromatic lens corrects for red and blue, independent of it being a doublet or triplet configuration.
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achromatic lens - definition of achromatic lens in the Medical...
achromatic lens Also found in: Dictionary/thesaurus, Encyclopedia, Wikipedia
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Achromatic Lens
Achromatic Lens by Tammy Plotner on September 27, 2009
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20-10 Scratch / Dig Optical Lenses Datasheets
25mm Dia Calibration Grade Aspheric Lens, 0.66 NA, Uncoated -- NT69-141 , 50mm Dia Calibration Grade Aspheric Lens, 0.50 NA, Uncoated -- NT69-144 ,
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Microscope Lenses and Objectives Specifications on GlobalSpec
Kellner or achromatic eyepieces are composed of an achromatic doublet and a convex-flat lens.
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Chromatic aberration
The earliest lens pair that produced this phenomenon was the Achromatic Doublet invented by John Dollond (1706?1761) in the 1750s.
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Microscope Eyepieces
A variation of the Ramsden, the Kellner eyepiece (after Carl Kellner) replaces the Eye Lens with an achromatic doublet.