RSVP Now. View Our Service Certifications. LA: Jan This high level of training, sophisticated equipment, and scientific standards come together to make our optical service department so outstanding. A measurement of contrast, Modulation Transfer Function, or MTF, is the most widely used scientific method of describing lens performance and the criteria by which we measure the image quality of lenses. The Modulation Transfer Function is a measure of the transfer of modulation or contrast from the subject to the image.
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Chapter 5 Surveying EquipmentVIDEO ON THE TOPIC: Optical Instruments
Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Since the early part of this century the manufacturing of optical components and systems has changed dramatically throughout the world, both in the types of products that are made and in the approach that is taken to making them.
Once devoted entirely to passive image-forming components such as lenses and mirrors and to the instruments made from them, the industry now also manufactures a wide range of active elements such as lasers and optical sensors. Until recently, the industry depended heavily on a craftsman-style approach to manufacturing, with much of the work being carried out on an order-by-order basis by very small businesses.
As new mass consumer markets have emerged that rely on optical technology—such as compact disk CD players and laptop computer displays—the implementation of high-volume mass-manufacturing techniques similar to those of the electronics industry has revolutionized this segment of the optics industry.
To take just one example of this new manufacturing technology, more than million diode lasers are now produced each year, on highly automated production lines. The availability of these inexpensive diode lasers has revolutionized entertainment in CD players , made high-quality printing affordable for small businesses and home users in laser printers , and made possible numerous other new products that together account for hundreds of billions of dollars in global business revenue each year.
These changes in manufacturing are exciting, but they are reflected most prominently in the globalization of the optics industry, rather than in the domestic development of U. Indeed, almost all mass. There are only a handful of large U. This U. The main strength of the U. This strategy has produced a strong industry based on the diverse activities of many small companies but lacking the manufacturing base required for expansion into mass consumer markets. There are several thousand small optics and optics-related companies in the United States, with an average of 50 or 60 employees each.
A key finding of this report is that despite the optics industry's significant contribution to the U. The enabling character of optics, a repeated theme of this report, is an especially important consideration for the manufacture of optical components.
The value of a component such as a laser diode or an aspheric lens is usually small compared with the value of the optical system that it enables. It is even smaller compared with the value of the resulting high-level application. Advances in the manufacturing of optical components are greatly magnified into improved capabilities and economic advantages at the systems and applications level.
Advanced optical components cannot be considered commodity items. This chapter addresses two distinct challenges. First, how can we maintain and strengthen the U. Second, how can we ensure the U.
Following a brief history of optics manufacturing in the United States and a short overview of the current state of the industry, the chapter divides into two main parts: 1 low-volume manufacturing of high-performance specialty products.
These numbers are based on a sample of the companies listed in the annual Photonics Directory. The chapter ends with a discussion of some crosscutting issues, such as metrology and design, and the industry's composition, size, and growth. Before about , the U.
Virtually all such products were imported from Europe. World War I stimulated demands for a domestic capability, and the need to provide components for these instruments was the basis for the U. The s and s supported several medium-to-large optical companies, such as Bausch and Lomb, American Optical, and Eastman Kodak—high-volume producers of both traditional and new optical instruments. A well-organized photographic industry provided almost all the cameras demanded by U.
Most microscopes, binoculars, telescopes, and optical inspection equipment were also manufactured domestically. The needs of the military during World War II placed significant demands on the industry's capabilities, and when military contracts ceased abruptly at the end of the war, most optics companies fell on hard times.
Demand for cameras and other optical instruments for consumer and civilian uses grew, but Japanese and European competitors could satisfy this demand more cheaply than most U. The remaining domestic camera and instrument manufacturers cut costs by turning to component suppliers in the Pacific Rim, first in Japan and more recently in China and Malaysia.
From the s through the s, the industry became increasingly divided, with overseas suppliers dominant in the high-volume markets and U. Small companies came to dominate the U. In , the invention of the laser spawned an entirely new segment of optics manufacturing, a segment that has grown astonishingly.
Technologies developed to take advantage of the laser's capabilities have led to additional major markets for optical fibers, optical communications systems, optical sensors, and a broad range of other new applications.
Mass U. The nature of the optics industry continues to change. Mass production techniques are used to manufacture components for an increasing. Among the products manufactured in this way are optical fiber for telecommunications and flat-panel displays for computers. Most of this type of manufacturing currently takes place overseas, not in the United States. At the same time, demand remains strong for high-performance specialty products that are manufactured in small numbers.
There are three main markets for these items: 1 the military, 2 other high-technology scientific and government programs, and 3 specialized industrial applications. Many high-performance military optical systems have very specialized capabilities but low production volumes. Some federal facilities for civilian research and development have similarly specialized needs. A key private-sector market for high-precision optical systems is the electronics industry, in which a relatively small market for photolithography systems enables the huge semiconductor business.
The United States excels in this high-value, low-volume portion of the optics industry. Most of the industry that serves the low-volume, high-accuracy component market remains dependent on very traditional fabrication methods, although it is increasingly facilitated by high-quality interferometric test equipment.
This sector of the industry, made up mostly of small companies, faces increasing competition and must adapt to the new global marketplace. To maintain market share as overseas competitors improve their accuracy, domestic manufacturers will have to develop and use more deterministic fabrication methods that achieve the same results at lower cost with fewer high-skill workers.
For each of these types of manufacturer, an important element in the future growth of the industry is the growing integration of passive image-forming components with active sensors and light processors. The acceleration of this trend will mean a corresponding integration of the traditional optical component industry with the developers and suppliers of electrooptical materials and devices.
The challenges of the future will require new, faster, more flexible approaches to optical component fabrication, with less reliance on skill-intensive, iterative production methods. Some programs have already been established to promote this goal. For example, the Center for Optical Manufacturing has developed a series of computer-controlled generating machines that use diamond tools to produce accurate surfaces on glass elements.
Similar approaches are being implemented overseas. It is not clear, however, that such methods will be enough to revitalize U. Collaborative programs in optics manufacturing should include universities so that students are trained in the latest technical solutions to production problems.
A critically important asset of the U. The development of sophisticated lens design programs, with good interaction with the designer, is remarkable. Programs that will run on a high-level personal computer now give any optical engineer access to modern design tools, and this easy availability has stimulated a widespread interest in optical design.
There is as yet little integration of active components into the design process, however, and comprehensive software for physical optical design is still at a relatively rudimentary stage.
Manufacturing of optical components and systems requires a large skilled and semiskilled workforce, and emerging new mass markets will increase the optics industry's need for trained workers. The quality and availability of optics training at the technician level is a widespread concern. A key challenge for the future is the establishment of standards for the interchangeability of optical components, which is an important driver for cost-effective manufacturing. There continues to be strong demand for high-performance specialty products that are manufactured in small numbers.
For many of these products, the customer is the government, especially DOD, but certain high-value items are also vitally important in the commercial sector. Specialized high-value applications, such as lenses for photolithography, continue to be an area in which the U.
As described in Chapter 4 , military optical systems tend to have high-performance and specialized requirements but low production volumes Joint Precision Optics Technical Group, For example,.
Ring laser gyroscopes require low-scatter surfaces and very high-precision optical components. High-performance aircraft and missiles require unusual aspheric components, conformal to the shape of the airflow.
Affordability is becoming increasingly important to the Department of Defense, but despite its wish to use commercial products off the shelf where possible, DOD supports design and manufacturing development for a number of specialized optical technologies.
The volume of demand for such items, even including the commercial applications, is often too small to ensure the necessary development of fabrication techniques by industry alone. DOD should continue to maintain technology assets and critical skills in optics manufacturing in order to meet future needs. Some government projects require so many specialized optical components that they have a significant impact on the entire optics industry, despite the low volume for each of their individual components.
These two DOE programs will consume thousands of medium-to-large optical components with high-precision surfaces and coatings resistant to high-power lasers. The overall size of these programs allows the private sector to plan some investments in improved machinery and processes. Photolithography for manufacturing electronics is a key private-sector use of high-precision optical systems. The production of short-wavelength photolithography systems of ever-higher quality is essential for continued growth of the semiconductor industry.
The Moore's law trend of increasing semiconductor miniaturization will drive photolithography through deep ultraviolet UV wavelengths and into the soft x-ray region by the turn of the century.
At present, most imaging tools are produced overseas, but there are opportunities for U. Specialized applications such as these incorporate a wide variety of traditional and modern optical technologies, each with its own manufacturing issues. The curved surfaces of a lens cause rays of light from a point on a distant object to come to a focus.
A single lens with spherical surfaces, although quite economical to manufacture, forms an image that is not a perfect point see Figure 6. Optical design has traditionally been a search for combinations of spherical-surfaced components, made of. To reduce this effect, a typical photographic or video lens right consists of many elements.
In general, the wider the field of view or the more extended the spectral range required, the more elements will be needed. The traditional approach to making spherical surfaces has been surface lapping, which can produce high-quality polished surfaces that deviate from the designer's specifications by as little as a few hundredths of a wavelength.
This lapping or averaging method has been very successful in fabricating spherical and flat components, but it is by nature a time-consuming and craftsman-intensive activity. Improvements currently being investigated are directed toward deterministic fabrication, in which the accuracy of surface production is inherent in the machine carrying out the process rather than in the time-varying lapping of surfaces.
Processes that are successful in finishing unusual materials, including optically active materials, have become more important. There have been several attempts to improve and modernize the methods used for serial production. These approaches, however, such as high-speed surfacing, molding, and automated test and assembly machines, are usually directed at reducing the cost of a specific product. The improved production capability rarely extends to other products.
Provide Feedback. Manufacturer and custom manufacturer of optical alignment equipment including micrometers. Types include high resolution and light guide optical micrometers. Specifications include 2 mm to 40 mm measuring range, 0. Features include maximum resolution and accuracy, wear-free, optical fibers, transmitters and receivers and integrated high resolution CMOS or CCD cameras. Offered in different specifications.
Optical Test Equipment
Overview of Fiber Optic Instrumentation. Optical power, required for measuring source power, receiver power and, when used with a test source, loss or attenuation, is the most important parameter and is required for almost every fiber optic test. Backscatter and wavelength measurements are the next most important and bandwidth or dispersion are of lesser importance. Measurement or inspection of geometrical parameters of fiber are essential for fiber manufacturers. And troubleshooting installed cables and networks is required. Fiber Optic Testing Requirements.
Optical Testing Instruments
Micro lens production Novel process for production of micro lenses with increased centering accuracy and imaging performance. High-precision mounted lens production Download. The MultiLens software module also makes quality checks on complex lens assemblies possible. Thanks to a comprehensive selection of optics, adaptation to the sample and measuring situation is possible in UV, VIS and IR as well as for spherical, aspherical and cylindrical lenses and lens assemblies in a diameter range from 0. The alignment, cementing and bonding of lens elements in production can take place both manually and automatically. The necessary measuring tasks can be carried out separately from alignment and production processes or in combination with these.
Not a MyNAP member yet? Register for a free account to start saving and receiving special member only perks. Since the early part of this century the manufacturing of optical components and systems has changed dramatically throughout the world, both in the types of products that are made and in the approach that is taken to making them. Once devoted entirely to passive image-forming components such as lenses and mirrors and to the instruments made from them, the industry now also manufactures a wide range of active elements such as lasers and optical sensors. Until recently, the industry depended heavily on a craftsman-style approach to manufacturing, with much of the work being carried out on an order-by-order basis by very small businesses. As new mass consumer markets have emerged that rely on optical technology—such as compact disk CD players and laptop computer displays—the implementation of high-volume mass-manufacturing techniques similar to those of the electronics industry has revolutionized this segment of the optics industry. To take just one example of this new manufacturing technology, more than million diode lasers are now produced each year, on highly automated production lines. The availability of these inexpensive diode lasers has revolutionized entertainment in CD players , made high-quality printing affordable for small businesses and home users in laser printers , and made possible numerous other new products that together account for hundreds of billions of dollars in global business revenue each year.
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We provide support, services, comprehensive training and the resources you need. Value add services that compliment your VIAVI system solution and instrument portfolio to provide a total cost of ownership. Technical education solutions, product training, and blended learning for technicians who are using new products or working with existing tools.
PCE Instruments PCE is an international supplier of test instruments, tools and equipment for measuring, weighing and control systems. Founded by German engineers nearly two decades ago, PCE offers more than test instruments with applications in industrial engineering and process control, manufacturing quality assurance, scientific research, trade industries and beyond. In addition, PCE can provide custom test instruments on demand. PCE serves customers from government, industry and academia in diverse fields such as acoustical engineering, aerospace, agriculture, archaeology, architecture, automotive, aviation, bioengineering, building inspection, chemistry, civil engineering, computer science, construction, data acquisition, education, electrical engineering, energy, environmental science, food processing, forensics, forestry, geology, government, horticulture, HVAC, hydrology, industrial hygiene, law enforcement, library science, logistics, machining, maintenance, manufacturing, materials science, mechanical engineering, metal working, meteorology, military, mining, nondestructive testing NDT , occupational health and safety, oil and gas, pharmaceuticals, property management, pulp and paper, physics, robotics, structural engineering, supply chain, transportation, tribology, veterinary science, water treatment, welding, woodworking and more. Test instruments can be found in research laboratories as well as in places like automobile repair shops, construction job sites and manufacturing facilities. Test instruments are used in trade industries for troubleshooting as well as for routine inspections of systems and equipment. Everyday consumers also need accurate, affordable test instruments for evaluating home energy efficiency, monitoring wind conditions for outdoor recreational activities, checking soil moisture levels in the garden, and more. For these types of applications, PCE Instruments offers a number of easy-to-use test instruments — no expert knowledge required. PCE's devices are of the highest industry standards, and are used for quality control and product testing in industrial settings, scientific research facilities, commercial businesses, government institutions, professional sports and recreation venues, and military operations. In addition, PCE's test instruments may be used in education for classroom demonstrations and laboratory tests.
PCE Instruments UK: Test Instruments
The traditional use has been for land surveying , but they are also used extensively for building and infrastructure construction , and some specialized applications such as meteorology and rocket launching. It consists of a moveable telescope mounted so it can rotate around horizontal and vertical axes and provide angular readouts. These indicate the orientation of the telescope, and are used to relate the first point sighted through the telescope to subsequent sightings of other points from the same theodolite position. These angles can be measured with great accuracy, typically to milliradian or seconds of arc. From these readings a plan can be drawn, or objects can be positioned in accordance with an existing plan. The modern theodolite has evolved into what is known as a total station where angles and distances are measured electronically, and are read directly to computer memory. In a transit theodolite, the telescope is short enough to rotate through the zenith , otherwise for non-transit instruments vertical or altitude , rotation is restricted to a limited arc. The optical level is sometimes mistaken for a theodolite, but it does not measure vertical angles, and is used only for levelling on a horizontal plane.
Lab & Manufacturing Test
Optical test equipment or optical measuring instruments are used to measure and characterize the physical properties of light. The insatiable demand for higher capacity in communication networks has fueled the need for highly precise optical test solutions. In addition, precision optical measurements are essential to optical research applications for biophotonics, environmental sensing, and consumer products. For more than thirty years, Yokogawa formerly Ando has delivered quality, consistency, ease of use, and market leadership for optical test applications. An Optical Spectrum Analyzer or OSA is a precision instrument designed to measure and display the distribution of power of an optical source over a specified wavelength span. An OSA trace displays power in the vertical scale and the wavelength in the horizontal scale. An optical time domain reflectometer OTDR is a precision instrument used to locate events or faults along a fiber link, typically within an optical communications network.
Optics Handling and Care Tutorial
The delicate nature of optical components requires that special procedures be followed in order to maximize their performance and lifetime. Through everyday use, optics can come in contact with contaminants such as dust, water, and skin oils. These contaminants increase scatter off the optical surface and absorb incident radiation, which can create hot spots on the optical surface, resulting in permanent damage. Optical components with coatings are particularly susceptible to this sort of damage.
A warm welcome to the Armstrong Optical website. We offer a wide range of optical metrology, imaging products and systems to a diverse array of industries with an even broader variety of applications. Please browse our various product pages and if something catches your eye feel free to download the appropriate PDF.
Tools for Optical Workshops
Pricay statement is available under: www. The measurement equipment for lenses and optical systems short: MELOS is the optimum solution for the comfortable and fast determination of the effective focal length , back focal length , radii as well as wedge angles. It is characterised by high accuracy, a particularly large measuring range and convenient adjustment options. The device can be used both for testing the adaptation of lenses directly to the camera and for the similar testing of the flange focal length of interchangeable lenses.
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