| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 201 | Optical members and blanks or synthetic silica glass and method for their production | US535205 | 1990-06-08 | US5086352A | 1992-02-04 | Shigeru Yamagata; Kyoichi Inaki; Toshikatu Matsuya; Ralf Takke; Stephan Thomas; Heinz Fabian |
| The invention relates to lenses, prisms or other optical members which are subjected to high-power ultraviolet light having a wavelength of about 360 nm or less, or ionizing radiation, particularly optical members for use in laser exposure apparatus for lithography, and to blanks for such optical members. The homogeneity of the refractive index distribution and the resistance to optical deterioration when the optical members are exposed for a long period of time to short wavelength ultraviolet light from a laser beam are improved. The optical members are made of high-purity synthetic silica glass material containing at least about 50 wt. ppm of OH groups, and are doped with hydrogen. The refractive index distribution caused by the fictive temperature distribution during heat treatment in the process of producing high-purity silica glass blanks for optical members in accordance with the present invention is offset by the combined refractive index distribution determined by the OH group concentration distribution or by the OH group concentration distribution and the Cl concentration distribution in the glass. | ||||||
| 202 | Method of manufacturing a glass body having a non-uniform refractive index | US183523 | 1988-04-19 | US5049175A | 1991-09-17 | Dieter Ross; Karlheinz Rau; Hans-Ulrich Bonewitz |
| A granular body, from which an article having a nonuniform refractive index may be formed, has grains of two substances which have different refractive indicies in a geometric distribution in the granular body corresponding to the geometric distribution of the substances required for the nonuniform refractive index of the article and a way of shape-stabilizing the granular body. A method of making the granular body comprises controllably feeding the grains into the geometric distribution in the granular body and shape-stabilizing it. Preferably the granular body is compressed into a porous compact which holds itself together and is treated with a gas to achieve desired optic properties in the article. | ||||||
| 203 | Method for the production of cylindrically symmetric bodies with a radial gradient | US52055 | 1987-05-20 | US4986939A | 1991-01-22 | Hans-Jurgen Hoffmann |
| In a method for the production of cylindrically symmetric bodies with given radial gradient of the material properties, for example of the refractive index, at least two rod-shaped molded bodies consisting of materials with different properties are joined in parallel and, following lowering of the viscosity of both materials, the bodies are twisted many times in a spiral around a longitudinal axis, such that a desired radial gradient of the material properties arises, where metallic, semiconducting, or insulating materials may be used, and the viscosity is varied through changing the temperature or adding or removing a solvent. | ||||||
| 204 | Heat treatment of flat photochromic sheet glass | US80903 | 1987-08-03 | US4786305A | 1988-11-22 | Edith M. Ball; Patricia A. Drake; David J. Kerko |
| This invention is directed to a method for heat treating a sheet of a potentially photochromic glass to cause the growth of silver halide crystals therein which impart photochromic properties thereto, wherein the heat treated sheet will be essentially free from thermal deformation and surface defects, and the photochromic properties exhibited therein will be essentially uniform across the area of the sheet. The method involves first placing a sheet of potentially photochromic glass on top of a sheet of carrier glass that exhibits a softening point at least 50.degree. C. higher than the temperature at which the potentially photochromic glass will be heat treated, and thereafter subjecting the stacked sheets to the heat treatment temperature desired for growing silver halide crystals in the glass. | ||||||
| 205 | Method of purifying molten silica | US897636 | 1986-07-07 | US4759787A | 1988-07-26 | John A. Winterburn |
| An improved quality vitreous silica boby and/or improved quality product made at high temperature in a vitreous silica vessel is/are obtained by applying a polarizing potential across the boundary surfaces of the vitreous silica body or vessel to cause migration of impurity ions away from one of the boundary surfaces thereof. Single crystal silicon (10) of reduced alkali content is drawn from melt (12) in a vitreous silica crucible (14) with a polarizing voltage applied across the wall of the crucible. | ||||||
| 206 | Method of manufacturing glass bodies | US839250 | 1986-03-13 | US4681614A | 1987-07-21 | Rolf Clasen; Heinz Scholz |
| A method of manufacturing glass bodies, in which the starting material for the glass body, in the form of microdispersed SiO.sub.2 particles, is used to form an open-pore green body which is subjected to a cyclic purification process in which the impurities present in the green body react with a purifying gas which is heated to a temperature in the range from 600.degree. to 900.degree. C., after which the green body is sintered; in each cycle of the said process, the arrangement holding the green body to be purified being flushed and subsequently evacuated. | ||||||
| 207 | Method of producing a bubble-free vitreous material | US312469 | 1981-10-19 | US4414014A | 1983-11-08 | Rolf Bruning; Poul-Erik Breidenbach; Norbert Cibis; Fritz Aldinger; Waltraud Werdecker |
| For the production of a bubble-free vitreous material, and in particular bubble-free vitreous silica, bubbles-containing vitreous material is exposed in a furnace, at a temperature which reduces its viscosity to a value between 10.sup.13.5 and 10.sup.8 Pa.sec, to the omnidirectional pressure ranging from 100 to 3000 bars of a gas which is insoluble in the vitreous material for a period of not less than 10 minutes and is then cooled. | ||||||
| 208 | Fabrication of optical waveguides | US540920 | 1975-01-13 | US4111520A | 1978-09-05 | Enrique Bernal G. |
| Optical waveguides are fabricated by heating a region of a body of optical material with an energy beam. The region is locally heated to a temperature at which plastic deformation occurs as a result of the constraints placed by the unheated adjacent material. The plastic strain produced at high temperature translates into a residual stress as the material cools which results in a greater index of refraction within the region than in surrounding regions. | ||||||
| 209 | Method for the production of quartz-glass objects by drawing | US630535 | 1975-11-10 | US4032315A | 1977-06-28 | Gerardus Henricus Antonius Maria van der Steen |
| A method for producing quartz glass objects starting from a melt of silicon dioxide in helium and hydrogen atmosphere. The drawn objects are first heated in the temperature range of 800.degree.-1400.degree. C and thereafter at a temperature of at least 1600.degree. C. The result is a considerable reduction in the number of bubbles. | ||||||
| 210 | Method of producing glass for optical waveguides | US3791714D | 1972-03-30 | US3791714A | 1974-02-12 | MAURER R |
| Deuterium is used instead of hydrogen in a process for producing glass having low hydroxyl ion content. In a flame hydrolysis process deuterium gas, or a deuterium compound gas, is passed through a liquid containing a silicon compound such as silicon tetrachloride. The resulting vapor is burned to deposit a film of silicon dioxide on a rotating mandrel. Glass produced in this manner is particularly suitable for use as optical waveguides. The hydroxyl ion normally present in glass produced in the presence of hydrogen is replaced by the deuterium containing ion OD . Absorption peaks normally caused by the presence of the hydroxyl ions are shifted to longer wavelengths at which the absorptions are not troublesome when the waveguide is used to transmit light in the band of approximately 7,000A.
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| 211 | Glass-ceramic and method for making same | US3779856D | 1971-07-23 | US3779856A | 1973-12-18 | PIROOZ P |
| High-strength glass-ceramics and a method of producing glassceramics having high strengths and good thermal shock resistance wherein a thermally crystallizable glass containing a nucleating agent capable of changing valency and which is more effective in the changed valency state is thermally in situ crystallized in a reducing atmosphere to form an at least partially crystalline glass-ceramic having a coefficient of thermal expansion which is considerably lower than that of the parent glass and having a high compressive stress layer on its surface.
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| 212 | Process for producing tempered glass sheet | US3776707D | 1970-09-01 | US3776707A | 1973-12-04 | INOUE T; TERASHIMA K |
| In a process for producing tempered glass sheet which includes a step of tempering treatment comprising heating a glass sheet to a temperature in the vicinity of its softening point and rapidly cooling the heated glass sheet from its surface, the improvement which comprises maintaining the glass sheet, before or after said tempering treatment, at a temperature in the range of 100* to 380*C. for a total period of time which meets the following formula
WHEREIN T is a temperature in degrees centigrade at an optional time, H is a time in minutes which is calculated when T is in the range of 100* to 380*C. and A IS A NUMBER 250 AFTER THE TEMPERING TREATMENT AND 540 BEFORE THE TEMPERING TREATMENT, THEREBY TO IMPART A THERMAL HISTORY TO THE GLASS SHEET, AND REMOVING THOSE GLASS SHEETS WHICH BREAK BY SAID THERMAL HISTORY AND TEMPERING TREATMENT, WHEREBY THE REMAINING TEMPERED GLASS SHEETS DO NOT UNDERGO SPONTANEOUS BREAKAGE. |
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| 213 | Method for making heat resistant transparent optical elements | US3768990D | 1972-08-25 | US3768990A | 1973-10-30 | SELLERS D; ROY D |
| In accordance with the invention a high temperature resistant optical element having transparency in the visible and infrared wave length regions of the electromagnetic spectrum is manufactured by heating to a temperature of from about 800* C to 1,250* C, in a vacuum, a composition containing substantially equal molar amounts of magnesium oxide and aluminum oxide, the composition having a sub-micron particle size and having uniformly mixed therewith from about 0.2 to 4 percent by weight powdered lithium fluoride, and then applying a pressure of at least about 8000 psi to the composition for from about 1/2 to 3 hours after the temperature of the composition has been raised to about from 1300* C to 1600* C.
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| 214 | Methods of making opal glass articles | US3645711D | 1970-01-19 | US3645711A | 1972-02-29 | PIROOZ PERRY P |
| Methods of making thermally opalizable glass compositions suitable for use in making opal glass containers and lowexpansion, heat resistant oven ware consisting essentially of SiO2, Al2O3, B203, Ca0, MgO and Na2O in specified critical amounts. Preferably, an article is formed of the above glass composition, and heat treated to provide an in situ glass-inglass phase separation by maintaining the article at a temperature in the neighborhood of 1,050* to 1,550* F. for about one-fourth to 8 hours.
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| 215 | Furnace for the manufacture of fused quartz | US28964363 | 1963-06-21 | US3320045A | 1967-05-16 | WERNER WEISS; KARL VATTERODT |
| 216 | Method of increasing annealing point of high silica glass | US3874660 | 1960-06-27 | US3113008A | 1963-12-03 | ELMER THOMAS H |
| 217 | Apparatus for applying isotropic pressure at elevated temperature to work pieces | US51188955 | 1955-05-31 | US2888316A | 1959-05-26 | ANDERSON ORSON L |
| 218 | Method of producing optical glass of varied refractive index | US72573747 | 1947-01-31 | US2511517A | 1950-06-13 | SPIEGEL HAROLD H |
| 219 | METHOD FOR LASER-ASSITED SEPARATION OF A PORTION FROM A SHEET-LIKE GLASS OR GLASS CERAMIC ELEMENT | US15996891 | 2018-06-04 | US20180297887A1 | 2018-10-18 | Martin SPIER; Fabian WAGNER; Andreas ORTNER; Georg HASELHORST; Volker PLAPPER |
| A method is provided for separating a portion from a sheet-like glass or glass ceramic element along an intended separation line to divide the element into the portion and a main part. The method includes producing filamentary damages a volume of the glass or glass ceramic element adjacently aligned along the separation line, the filamentary damages are produced by laser pulses of a laser, the glass or glass ceramic element comprises a material that is transparent for the laser pulses; displacing incidence points of the laser pulses on a surface of the glass or glass ceramic element thereof along the separation line; and subjecting the material of the glass or glass ceramic element located in a region of the portion to a phase transition so that the material contracts to detach the portion from the main part at the adjacently aligned filamentary damages along the separation line, while the main part remains intact as a whole. | ||||||
| 220 | OPTICAL FIBER FOR SILICON PHOTONICS | US15888666 | 2018-02-05 | US20180224607A1 | 2018-08-09 | Dana Craig Bookbinder; Ming-Jun Li; Dale Robert Powers; Pushkar Tandon |
| An optical fiber for efficient coupling of optical signals to photonic devices. The optical fiber includes a Cl doped tapered core region with a changing outer diameter and changing maximum core refractive index to provide improved coupling at wavelength of interest to photonic devices. The photonic devices may be, for example, silicon photonic devices with an operating wavelength at or near 1310 nm, or at or near 1550 nm. | ||||||
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