Laser Optical Am I a good candidate for optical laser treatment?
I am in my 30's and have been wearing glasses since childhood but I am now thoroughly sick of them and I am considering laser treatment. Would anyone know If I make a good candidate with the following optical prescription:-
Right: Sphere +4.75, Cyl -1.75, Axis 82, Add+1.00
Left: Sphere +4.25, Cyl -0.75, Axis 110, Add+1.00
In fact if anyone could help me decipher the prescription I would be happy.
Your prescription is of little consequence. The real questions that they relay on are...how long has your rx been stable? Hmmm...how thick or thin are your corneas? Do you have a healthy enough tear layer? There are so many factors it is not just age or Rx. You have hyperopic astigmatism. and you are also presbyopic. So, there ya go. You are technically far sighted with a bit of astigmatism and you need a bifocal. You should be wearing a multifocal of some sort full time. your best bet is to consult your doctor!
This textbook provides senior undergraduates studying modern optics with a comprehensive account of optics and optical electronics. A large number of solved and unsolved problems are included in the book. The extensive coverage makes it valuable to postgraduates, and also to optical engineers, as a source of basic design information.The initial chapters cover the basic principles involved in the propagation of electromagnetic waves. These are followed by a description of diffraction and its application to spatial frequency filtering and holography. Laser theory and the various types of laser are covered, as well as the theory of optical waveguides, fibre optics and integrated optics. The final chapters cover electrooptics, acoustooptics, and nonlinear optical effects. Author: Ghatak, A. K./ Thyagarajan, K./ Thyagarajan, K. Binding Type: Paperback Number of Pages: 640 Publication Date: 1989/07/20 Language: English Dimensions: 9.30 x 7.55 x 1.32 inches
HighlightsReplacement optical laser pick-up part for Nintendo WiiFixes long loading times and read disc errorsSave on expensive repairs with the replacement optical laser pick-up part for the Nintendo WiiMade from high quality componentsNote:The replacement optical laser pick-up part should only be installed by trained technicians. Improper installation of may result in permanent damage to the Nintendo Wii console and game discs. Please note that MiniInTheBox cannot be held responsible for any damage that occurs from improper installation of console components. MiniInTheBox staff will not dispense instructions or advice about the installation of console components.
For years scientists turned to the CRC Handbook of Laser Science Technology for reliable data on optical materials. Out of print for several years, that standardsetting work now has a successor: the Handbook of Optical Materials. This new handbook is an authoritative compilation of the physical properties of materials used in all types of lasers and optical systems. In it, scientist, author, and editor Dr. Marvin J. Weber provides extensive data tabulations and references for the most important optical materials, including crystals, glasses, polymers, metals, liquids, and gases. The properties detailed include both linear and nonlinear optical properties, mechanical properties, thermal properties together with many additional special properties, such as electro, magneto, and elastooptic properties. Using a minimum of narration and logically organized by material properties, the handbooks unique presentation simplifies the process of comparing different materials for their suitability in particular applications. Appendices furnish a wealth of other useful information, including lists of the many abbreviations and acronyms that proliferate in this field. The Handbook of Optical Materials is simply the most complete onestop source available for materials data essential to lasers and optical systems. Author: Weber, Marvin J./ Weber, Weber J. Series Title: CRC Press Laser Optical Science Technology Binding Type: Hardcover Number of Pages: 536 Publication Date: 2002/09/24 Language: English Dimensions: 10.52 x 6.92 x 1.32 inches
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Author: Osche, Gregory R./ Osche Series Title: Wiley Series in Pure and Applied Optics Binding Type: Hardcover Number of Pages: 424 Publication Date: 2002/08/08 Language: English Dimensions: 9.21 x 6.14 x 1.00 inches
This book covers optical chemical sensing by means of optical waveguides, from the fundamentals to the most recent applications. The book includes a historical review of the development of these sensors, from the earliest laboratory prototypes to the first commercial instrumentations. The book reprints a lecture by the Nobel Laureate Charles Townes on the birth of maser and laser, which lucidly illustrates the development of new science and new technology. Author: Baldini, F./ Chester, A. N./ Homola, J. Series Title: NATO Science Series II: Mathematics, Physics and Chemistry Series Number: 224 Binding Type: Paperback Number of Pages: 567 Publication Date: 2006/04/26 Language: English Dimensions: 9.21 x 6.14 x 1.16 inches
High Quality Content by WIKIPEDIA articles Catastrophic optical damage is a failure mode of highpower semiconductor lasers. It occurs when the semiconductor junction is overloaded by exceeding its power density and absorbs too much of the produced light energy, leading to melting and recrystallization of the semiconductor material at the facets of the laser. This is often colloquially referred to as blowing the diode. The affected area contains a large number of lattice defects, negatively affecting its performance. If the affected area is sufficiently large, it can be observable under optical microscope as darkening of the laser facet, and/or as presence of cracks and grooves. The damage can occur within a single laser pulse. Catastrophic optical damage is one of the limiting factors in increasing performance of semiconductor lasers. It is the primary failure mode for AlGaInP/AlGaAs red lasers. Shortwavelength lasers are more susceptible to COD than longwavelength ones. The typical values for COD in industrial products range between 1220 MW/cm2. Author: Miller, Frederic P./ Vandome, Agnes F./ McBrewster, John Binding Type: Paperback Number of Pages: 68 Publication Date: 2010/06/27 Language: English Dimensions: 5.98 x 9.01 x 0.16 inches
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Optical Spectroscopy bridges a gap by providing a background on optics while focusing on spectroscopic methodologies, tools and instrumentations. The book introduces the most widely used steadystate and timeresolved spectroscopic techniques, makes comparisions between them, and provides the methodology for estimating the most important characteristics of the techniques such as sensitivity and time resolution. Recent developments in lasers, optics and electronics has had a significant impact on modern optical spectroscopic methods and instrumentations. Combining the newest lasers, advanced detectors and other high technology components researchers are able to assemble a spectroscopic instrument with characteristics that were hardly achievable a decade ago. This book will help readers to sourse spectroscopy tools to solve their problems by providing information on the most widely used methods while introducing readers to the principles of quantitative analysis of the application range for each methodology. In addition, background information is provided on optics, optical measurements and laser physics, which is of crucial importance for spectroscopic applications. provides an overview of the most popular absorption/emission spectroscopy techniques discusses application range, advantages and disadvantages are compared for different spectroscopy methods provides introductions to the relevant topics such as optics and laser physics Author: Tkachenko, Nikolai V. Binding Type: Hardcover Number of Pages: 307 Publication Date: 2006/05/01 Language: English Dimensions: 9.50 x 6.72 x 0.70 inches
The spatial beam structure that is formed in the laser cavity together with the active element constitute the most critical laser elements. The engineering devices, such as excitation systems, lasing gas circulation systems, etc., are usually at the top of the agenda of scientific meetings: the divergence problem has never previously been discussed by a broad community of experts. The conversion of scientific and technological experience accumulated during the development of high power military laser, where efficiency was not necessarily the major driving force, into commercially viable industrial lasers will require attention to be focused on the general problems of beam divergence. The present book presents a dialogue between specialists in resonator cavity design from NATO and Cooperating Partner countries. The book is divided into four parts: Theory, in which fundamental questions of resonator physics and optical design are addressed; Theoretical and Practical Problems; The Design of Optical Elements; and The Optimization of Designs. Author: Kossowsky, Ram/ Jelinek, Miroslav/ Novak, Josef Series Title: NATO Science Partnership SubSeries 3: High Technology Binding Type: Hardcover Number of Pages: 516 Publication Date: 1998/02/28 Language: English Dimensions: 6.14 x 9.21 x 1.12 inches
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Hubei Province in central China electronics industry is represented. Electronic information industry in Hubei Province in 2008 sales revenue of 109.9 billion yuan, an increase of 36%, faster than the industry average level of China's 9 percent, industrial-scale in six provinces in central China listed first.
At present, Hubei electronic information industry has been basically formed a six industrial clusters: optical communication industry groups; mobile communication industry groups; display industry groups; software industry group; electronic-based materials industry base and automotive electronics industries.
Wuhan is the capital of Hubei province and the electronic city, the electronic information industry has become an important pillar of the city's industrial development, one in 2008 the province's electronic information industry output value accounted for 90%, mainly distributed in the East Lake New Technology Development Zone, Wuhan Economic and Technological Development Zone, Caidian Economic Development Zone, East and West Lake Wujiashan Taiwanese Investment Zone, Jianghan Economic and Technological Development Zone and other urban industrial parks. Among them, the planning area of 224 square kilometers, an area of about 90 square kilometers have been built in Wuhan East Lake New Technology Development Zone, known as the "Optics Valley of China" reputation is China building world-class hi-tech park's six state-level technology development pilot and one of the city's electronic information industry accounted for more than 80% year on year growth of more than 30%. As of the end of 2008, the district is 12,784 registered enterprises at home, high-tech enterprises accounted for about 2,100 homes.
"Electronic Engineering Times" Total analyst Yorbe Zhang made a special trip to visit the East Lake High-tech Zone management, laboratory and representatives of enterprises, we present the development of central China's electronics industry, and characteristics.
China's Optical Valley
Wuhan East Lake High-tech Zone was established in October 1988 to March 1991 by the State Council approved the first state-level high-tech industrial development zones. In 2001, was approved by the former State Planning Commission and the Ministry of Science and optoelectronic industry base for the country, namely, "Optics Valley of China."
Optics Valley of the development of the earliest in 1984 originated in a proposal put forward by the industry in China's intellectual-intensive areas in the idea of the establishment of experimental area, occur within the next few years, such as Zhongguancun, East Lake and some other high-tech zones. With regard Wuhan in light of scientific research efforts and talent advantages, as well as other specialized optical Expo exhibition, so Wuhan in light industries has been rapid growth and industry recognition. Now, we park in China's electronic information industry, the combined effects of power in the top six. "Wuhan East Lake New Technology Development Zone Management Committee Counterattack a brief introduction, deputy director of China Optics Valley of the development process.
"East Lake High-tech Zone to play the advantages of optoelectronic information industry gathering, initially formed the information industry as the leading optoelectronics, biotechnology, energy, environmental protection, modern equipment manufacturing, software and service outsourcing industry, striving to develop high-tech industries such as industrial structure," said Counterattack China , "in which optical communication, mobile communication, modern equipment manufacturing, energy and environmental protection, bio-industry, software and service outsourcing and other six are more than 10 billion yuan industrial scale."
In the park, and light-related industries, including optical communications, mobile communications, optical devices, laser, LED lighting, etc., occupied the park in 2008 about half of the output, opto-electronics information industry here, an absolute dominant: in optical communications industries, high-tech zones optical fiber and cable production scale to achieve world's second largest domestic market share of 50%, international market share of 12%, while the existing mobile communications equipment, terminal and supporting product manufacturing enterprises in 30, formed a relatively complete industrial chain of a new generation of mobile communication; optoelectronic device market share of 60% of the domestic and international market share of 6%; in the semiconductor lighting and photovoltaic industries, in 2007, a successful high-tech zones large package out of 1,500 watts power LED light source, is the world's largest power of artificial light; in laser industry, the current laser equipment production enterprise 53, the domestic market share has remained at about 50% of the laser equipment is an important production base.
"In the promotion of light industry development process, we also actively support and promote the development of surrounding cities to form a wide range of industrial chain." Counterattack the people added. At present, Wuhan, in collaboration with its surrounding Yellowstone, Ezhou, Huanggang, Xiaogan, days of the door, Xianning, Xiantao, Qianjiang 8 in the 100 km radius of the city, forming a "1 +8" Optical Valley Circle.
Photoelectric light industry, national laboratories to strengthen the cohesion
Wuhan National Laboratory for Optoelectronics Science and Technology of China in November 2003 approved the establishment of five national laboratories is one of the national science and technology an integral part of the innovation system as well as "Optics Valley of China" in innovative research base. The lab is put into use in 2005, currently has 300 researchers, graduate students more than 700 people.
"Laboratory both leading-edge basic research in the application of systematic in-depth strategic and forward-looking research work, as part of academic gradually advanced until the leading position to achieve; must also focus on resolving the country's major professional development of optoelectronics key technologies issue, "" because of Wuhan optoelectronic industry is relatively developed, so settle down here. "
The laboratory studies of the area belonging to traditional industries, including: 1. Laser industry: mainly intense laser, laser medical equipment, laser processing integrated, high-power lasers, etc.; 2. Fiber optic cable; 3. Optoelectronic devices, that is used in optical communication electronic devices, including communications lasers, optical amplifiers. About the Author
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