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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 correction is required. Because of their superior optical quality, ROLYN Achromats may be used in microscopes, telescopes, magnifiers, eyepieces and many other scientific instruments.
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Panasonic aspherical glass lenses are a key device of optical electronics, with high product reliability and stability achieved by a wide range of glass material and a variety of designs. Panasonic's unique manufacturing process, "One-Shot" precision moulding, as well as their excellent aspherical designs, enable devices using these aspherical glass lenses to be smaller and lighter with higher performance.
Lens Features
* High numerical aperture based on aspherical design
* Compact and lightweight based on short focal length design
* Equal optical characteristics achieved by high precision moulding method
* Unaffected by extremes of temperature or humidity
* High product reliability and stability
Applications
* Pick up lens for optical drive devices
* Collimator lens for laser beam printers
* Coupling lens for optical communication systems
* Image formation lens for sensors
* Collimator lens for WDM couplers
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Aspheric lenses are designed to be diffraction limited. They usually achieve a smaller spot size than both the plano-convex and positive meniscus lens. This provides the highest power density at the lens workpiece with equivalent focal length.
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Due to the use of aspherical surfaces we can achieve substantially better results in the quality of imaging.
Once the tool has reached the required accuracy, we can precisely reproduce it for all lenses of this design. This is a big advantage of the production of plastic aspherical lenses.
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Molded lenses are used in a variety of photonic products: barcode scanners, laser diode to fiber couplings, optical data storage, and medical lasers, to name a few. In many of these applications, the material of choice is optical glass because of its durability and performance stability over a wide environmental range. High power transmittance is also an added advantage.
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Aspheric Lenses
Aspheric lenses offer better performance by reducing spherical aberrations at low f-numbers. These lenses are ideal for high-throughput condensing, collimating and imaging applications. MediVision Optics offers unique manufacturing capabilities by grinding and polishing aspheres during the production process. Unlike conventional manufacturing techniques, our capabilities allow us to produce components which offer better surface finish and tighter tolerances.
Materials: Bk7 or equivalent
Diameter Range : 4mm to 50mm
Diameter Tolerance: +/- .2mm
Paraxial Focal Length Tolerance : /- 3%
Surface Quality : 60-40
Rear Surface: Spherical Convex or Concave
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An asphere is an optic with one or more surfaces that are defined by a polynomial equation. Aspheres are often used to reduce the number of elements, aberrations, and the weight of an optical system and are commonly found in telescopes, camera lenses, and diagnostic instruments.
Manufacturing aspheres demands the utmost in talent and technology. Just as important, however, is the actual measurement of the aspheric profile to assure adherence to specification. Optimax utilizes surface profilers to inspect to /- 1 micron tolerances, and null lenses with interferometers to certify parts with tighter tolerances.
Optimax inspects 100% of all optics and provides test data with prototype orders. We utilize state-of-the-art metrology and provide on-time delivery guarantees to ensure your satisfaction!
Optimax can provide optics complete with BBAR, V-coat, and mirror coatings. We have four electron-beam coaters supported by a Perkin-Elmer Lambda 900 Spectrophotometer. For more details please see our Coatings data sheet.
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ROLYN Aspheric Lenses are highest quality molded and fire polished lenses, designed to minimize spherical aberrations which are of major concern in condensing systems.
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Aspherical elements eliminate monochromatic aberrations (e.g. spherical aberration) and improve focusing and collimating accuracy. They replace a multiple spherical element assembly, thereby combining weight reduction and a more compact design. Thus the number of back reflections is reduced, and a higher transmission is achieved.
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Ball Lenses
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 anti-reflection (AR) coating..
The effective focal length of a ball lens is given by the following formula:
BFL = F – D/2 and EFL = nD/4(n-1)
The Numerical Aperture, NA, of a ball lens is dependent on the focal length of the ball and on the input diameter, d.
NA = 2d(n-1)/nD
Specifications
Material: BK7 grade A optical glass
Diameter tolerance: ±0.005mm
Sphericity: ±0.003mm
Surface Quality: 40/20
Coating: none
Drum Lenses
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.
Specifications
Material: BK7 grade A optical glass
Diameter tolerance: +0.0/-0.05mm
Length: ±0.005mm
Surface Quality: 40/20
Coating: none
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To cope with the increasing demand of enviromental friendly optical glasses suitable for precision molding processes SCHOTT has extended its glass portfolio and has identified several low transformation temperature glasses that are suitable for precision molding.
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Made of high quality BK7, UV FS or FS material lenses are offered for various applications. Wide selection of different shapes are guaranteed: conical, plano-convex, biconvex, plano-concave, biconcave, plano-convex cylindrical lenses and plano-concave cylindrical lenses. Lens kits of one inch diameter research quality lenses of all four basic shapes for optics study and research purposes are available.
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Optida Co. design and produce various configuration optical components with require coatings upon your request:
High-Reflection Mirrors, Windows, Prisms, Lenses, Polarizer's, Beamsplitters, Partial Reflectors, Interference filters, Astronomical filters, etc.
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Collimating Optics: Plano-convex lenses; copper total reflectorReflective and transmissive collimating optics are used in beam delivery systems to maintain beam collimation between the laser resonator and the focusing optics. Reflective collimators typically use Cu total reflectors, while transmissive collimators typically use ZnSe lenses.
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- High numerical aperture for maximum collection efficiency
- Compact, single lens design
- Diffraction limited performance
- Molded Black Diamond™ Infrared Lens
- RoHS Compliant
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Two axicones together will produce a thick-walled hollow "pipe" of light
An axicone followed by a spherical lens will produce an annular focus
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As the name suggests, cylindrical lenses are either round or rectangular objects with cylindrically shaped surfaces. They differ from spherical lenses in that they focus a beam to a focal line rather than a focal point.
Transmission is improved by applying an anti-reflection coating on both sides, and multilayer coatings are available for various areas of the light spectrum. Cylindrical lenses can be made from ZnSe, Ge, Si, and other IR materials.
Applications include laser scanners, laser diode systems, spectrophotometers, projectors, and optical data storage and retrieval systems.
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A cylinder is a surface that is circular in one direction and flat in the orthogonal direction. A cylindrical optic has one or more cylindrical surfaces. Cylindrical optics are used in medical instruments, graphic arts, laser printers, and semiconductor processing equipment.
Optimax uses several interferometric techniques including plano reference flats, spherical transmission lenses, and diffractive optical elements to verify the plano axis and power axis of the optic.
Optimax inspects 100% of all optics and provides test data with prototype orders. We utilize state-of-the-art metrology and provide on-time delivery guarantees to ensure your satisfaction!
Optimax can provide optics complete with BBAR, V-coat, and mirror coatings. We have four electron-beam coaters supported by a Perkin-Elmer Lambda 900 Spectrophotometer. For more details please see our Coatings data sheet.
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Standard Products
As a system supplier, we primarily manufacture highly precise customer-specific optical components and optoelectronic systems.
We offer a small assortment of our standard products:
CMOS camera module
collimator lenses
planconvex lenses
biconvex lenses
Delivery is made ex works.
Most of our products can be delivered immediately. For technological reasons, we cannot guarantee availability for all inquired lot sizes. If a separate production becomes necessary, delivery time is approximately 2 weeks.
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GRADIUM® lenses are made from LightPath's proprietary axial gradient index glass. Its unique refractive qualities can be exploited to reduce spherical aberrations - resulting in performance similar to single term aspheres. GRADIUM® lenses provide a cost-effective solution for many high-performance applications.
Ideal for high power applications, GRADIUM® lenses and their gradient-index structure often allow a GRADIUM® singlet to replace a conventional spherical doublet. GRADIUM® lenses can be custom designed for visible or near infrared applications in diameters from 5mm to over 100mm. GRADIUM® doublets are also available for better achromatic performance and can equal the performance of conventional triplets.
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In addition, our range of products also comprises lens systems for focusing or collimating of infrared lasers.
These IR lens systems are specifically optimized for wavelengths of 1.5 µm - coatings for other wavelengths are available on request.
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New BGA Lens MX-BGAZ II:
Normal mode and wide mode
Zoom ring for adjusting magnification, focus ring and wide focus.
Option: Backlight arm
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Meniscus lenses are designed to minimize spherical aberration producing a minimum focal spot size for incoming collimated light.
In addition to the standard focal lengths listed below, II-VI maintains an extensive inventory of test plates and tooling, resulting in no additional tooling charges for focal length fabrication.
Besides the plano-convex, meniscus, and aspheric lens shapes offered in this catalog, II-VI routinely fabricates biconvex and negative focal length lenses upon request. Our in-house optical engineers can design the component or optical system which provides the exact performance you require. Please contact our sales and engineering staff for a quotation.
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Micro-Optics and Optical Precision Structures
The miniaturisation of components and assemblies for equipment necessitates the miniaturisation of optical components.
Micro structures such as Fresnel and diffractive optics are required to achieve certain optical effects. Many of these mini and micro optical elements can only be manufactured using plastics.
Micro components have diameters less than 3 mm, sometimes less than 1 mm. Micro-optical parts, which are integrated in larger components, often measure only a fraction of a square millimeter and weigh only a few milligrams.
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JENOPTIK Polymer Systems GmbH and MEMS Optical Inc. (also belonging to the Jenoptik group) have developed a double-sided microlens array in plastic. Due to a unique proprietary tooling this array can be reproduced for series production.
A double-sided microlens array enables, among others, homogenization of laser sources as well as beam guidance in laser projection systems. The new technology allows for an array precisely aligned front-to-back in the µ-area.
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Features:
Diameter: 0.995" +/- 0.005"
Wedge: 8° +/- 1º
Surface Quality: 60/40 S & D
Surface Accuracy: 2
Edge Bevel: 0.010" Maximum @ 45º
P2S: Polished two sides
Quantity: Volume Discounts available
Custom: VPG manufactures witnesses with varying wedge, (1° - 20°) diameters, materials, flatness and surface finish.
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Plano-convex lenses, the most economical transmissive focusing elements available, are ideally suited for laser heat treating, welding, cutting, and infrared radiation collection where spot size or image quality is not critical. They are also the economical choice in high f-number, diffraction limited systems where lens shape has virtually no effect on system performance.
For proper performance with a plano-convex lens, the curved surface should face toward the incoming collimated beam or the longer conjugate distance (the object and image distances together are referred to as the conjugate distance).
In addition to the standard focal lengths listed here, II-VI maintains an extensive inventory of test plates and tooling. This enables fabrication of many other focal lengths without additional tooling charges.
Besides the plano-convex, meniscus, and aspheric lens shapes offered in this catalog, II-VI routinely fabricates biconvex and negative focal length lenses upon request. Our in-house optical engineers can design the component or optical system which provides the exact performance you require.
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The plano convex lenses listed are made with BK7 glass however any glass type may be used. The lenses are designed to work best at infinity or near infinite conjugates.
The lenses have a standard AR coating but any type of multilayer coating may be ordered. Most lenses are in stock and can be shipped within 24 hours. Westech can produce a custom lens from any drawing or specification.
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Singlets are available in a wide variety of shapes. Plano-convex and biconvex lenses have a positive focal length, plano-concave and biconcave lenses have a negative focal length. Meniscus (convex-concave) lenses may be either positive or negative and are used when very long focal lengths are required. Aspheric lenses have one aspherical surface and one spherical or plano surface. They are used principally as light condensers. Spherical ball lenses are ideal for fiber-to-fiber and diode laser-to-fiber coupling. Gradient-index (GRIN) lenses combine refraction at the surfaces with continuous refraction throughout the thickness of the optic.
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Optical lenses
