ROGER FRANK BARTHOLOMEW
Pilots at Overbrook Rd, Painted Post, NY

License number
New York A4147939
Issued Date
Nov 2015
Expiration Date
Nov 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
8 Overbrook Rd, Painted Post, NY 14870

Professional information

Roger Bartholomew Photo 1

Rare Earth Doped Optical Glasses

US Patent:
6356699, Mar 12, 2002
Filed:
Aug 7, 1998
Appl. No.:
09/130800
Inventors:
Roger F. Bartholomew - Painted Post NY
Heather D. Boek - Corning NY
Michelle D. Pierson - Painted Post NY
Carlton M. Truesdale - Corning NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
G02B 600
US Classification:
385142, 385143, 385144, 385145, 313468
Abstract:
A glass component in an optical system, which may be a lazing or an optical amplifying medium, comprising a silicate base glass doped with at least two Group III B elements, the glass, and a method of preventing clustering of a rare earth metal ion in the glass.


Roger Bartholomew Photo 2

Hydration Of Silicate Glasses In Alcohol-Water Solutions

US Patent:
4133665, Jan 9, 1979
Filed:
Sep 1, 1977
Appl. No.:
5/829731
Inventors:
Roger F. Bartholomew - Painted Post NY
William L. Haynes - Painted Post NY
Leon M. Sanford - Corning NY
Assignee:
Corning Glass Works - Corning NY
International Classification:
C03C 1500, C03B 2100
US Classification:
65 30E
Abstract:
The present invention is concerned with the production of sodium and/or potassium hydrosilicate glass bodies. The basis of the invention resides in the hydration of anhydrous sodium and/or potassium silicate glass bodies in aqueous alcohol solutions to impart enhanced mechanical strength and thermoplastic properties thereto. The hydrating process, which permits close control to be maintained over the water content absorbed in the glass, can be carried out in liquid solutions of water and relatively short chain, i. e. up to about five carbon atoms, aliphatic alcohols or in gaseous atmospheres of such solutions. An ion exchange reaction of Li. sup. + ions or protons with Na. sup. + and/or K. sup. + ions can be promoted at temperatures above the transformation range of the hydrated glass, and an exchange of K. sup. + ions for Na. sup.


Roger Bartholomew Photo 3

High Refractive Index Hydrated Glasses

US Patent:
4099978, Jul 11, 1978
Filed:
Oct 20, 1977
Appl. No.:
5/843798
Inventors:
Roger F. Bartholomew - Painted Post NY
Che-Kuang Wu - Horseheads NY
Assignee:
Corning Glass Works - Corning NY
International Classification:
C03C 310, C03C 330
US Classification:
106 53
Abstract:
The present invention is directed to the preparation of hydrated glasses in the Na. sub. 2 O-K. sub. 2 O-PbO-SiO. sub. 2 base composition system containing an amount of BaO and/or Y. sub. 2 O. sub. 3 and/or ZnO and/or ZrO. sub. 2 effective to cause the hydrated glass to be essentially colorless. Such glasses are transparent, exhibit refractive indices higher than 1. 60, and which demonstrate intrinsic thermoplastic properties thereby enabling such to be readily molded into optical quality components at relatively low temperatures. The operable glasses in the anhydrous state consist essentially, in mole percent on the oxide basis, of 8-18% Na. sub. 2 O, 2-6% K. sub. 2 O, 10-23% Na. sub. 2 O + K. sub. 2 O, >15 but <21% PbO, 55-67% SiO. sub. 2, the mole ratio PbO:SiO. sub.


Roger Bartholomew Photo 4

Solution Doping Of Porous Preforms

US Patent:
5151117, Sep 29, 1992
Filed:
Jun 14, 1991
Appl. No.:
7/715348
Inventors:
Roger F. Bartholomew - Painted Post NY
Andrea L. Sadd - Corning NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
C03C 2502
US Classification:
65 312
Abstract:
Disclosed is a method of forming a doped glass body. The glass body is formed by adding a dopant to a glass preform, at least part of which has interconnective pores. The porous preform is immersed in a solution of a salt of the dopant dissolved in an organic solvent having no OH groups. The solvent is removed, and the porous glass preform is heat treated to consolidate it into a non-porous glassy body containing the dopant dispersed throughout at least a portion of the body. An OH-free solvent is selected because of its beneficial effect on the preform during the drying step. Whereas OH-containing solvents such as water and alcohol caused cracking and/or flaking of the outer surface of the porous preform following the drying step, an undamaged surface is formed by the present invention.


Roger Bartholomew Photo 5

Rare Earth-Doped, Stabilized Cadmium Halide Glasses

US Patent:
5346865, Sep 13, 1994
Filed:
Jul 6, 1993
Appl. No.:
8/086048
Inventors:
Bruce G. Aitken - Corning NY
Frank A. Annunziata - Horseheads NY
Roger F. Bartholomew - Painted Post NY
Mark A. Newhouse - Corning NY
Mark L. Powley - Campbell NY
Andrea L. Sadd - Corning NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
C03C 332, C03C 410
US Classification:
501 40
Abstract:
This invention is directed to the production of transparent glasses exhibiting transmission far into the infrared regime of the radiation spectrum. The glasses consist essentially, in mole percent, of 42-55% CdF. sub. 2 and/or CdCl. sub. 2, 30-40% NaF and/or NaCl, 2-20% total of BaF. sub. 2 and/or BaCl. sub. 2 +KF and/or KCl, consisting of 0-15% BaF. sub. 2 and/or BaCl. sub. 2 and 0-7% KF and/or KCl, 1-12% total of at least one stabilizing metal halide selected from the group LiX, BeX. sub. 2, MgX. sub. 2, MnX. sub. 2, PbX. sub. 2, TlX, COX. sub. 2, and ZnX. sub. 2, and 0,005-0. 5% REX. sub. 3, wherein Re is at least one rare earth metal selected from the lanthanide series of rare earth metals and X is at least one halide selected from the group consisting of fluoride, chloride, and bromide. The preferred glasses contain at least 2% each of BaF. sub. 2 and/or BaCl. sub.


Roger Bartholomew Photo 6

Hydration Of Silicate Glasses In Aqueous Solutions

US Patent:
3948629, Apr 6, 1976
Filed:
Apr 29, 1974
Appl. No.:
5/465243
Inventors:
Roger F. Bartholomew - Painted Post NY
Larry E. Campbell - Corning NY
Stanley S. Lewek - Corning NY
Joseph E. Pierson - Painted Post NY
Stanley D. Stookey - Painted Post NY
Assignee:
Corning Glass Works - Corning NY
International Classification:
C03C 1700
US Classification:
65 30R
Abstract:
The present invention relates to a method for hydrating fine-dimensioned alkali metal-containing silicate glass bodies so as to impart the property of thermoplasticity thereto. More particularly, this invention contemplates contacting fine-dimensioned alkali metal silicate glass bodies with an aqueous solution at elevated temperatures and pressures to develop at least a surface layer thereon having a water content ranging up to about 36% by weight, said aqueous solution having a pH less than 6 as measured at room temperature. The hydrated bodies can approach certain properties of high-polymer organic plastics and exhibit the capability of being thermoplastically formed at relatively low temperatures.


Roger Bartholomew Photo 7

Cuprous Copper And/Or Silver Halophosphate Glasses

US Patent:
4226628, Oct 7, 1980
Filed:
Jul 30, 1979
Appl. No.:
6/061901
Inventors:
Roger F. Bartholomew - Painted Post NY
William G. Dorfeld - Lindley NY
James A. Murphy - Painted Post NY
Joseph E. Pierson - Painted Post NY
Stanley D. Stookey - Painted Post NY
Paul A. Tick - Corning NY
Assignee:
Corning Glass Works - Corning NY
International Classification:
C03C 316
US Classification:
106 47R
Abstract:
This invention is related to the production of glasses having compositions within the copper and/or silver-halide-phosphate field, wherein at least one halide is present selected from the group of fluoride, chloride, bromide, and iodide, such glasses exhibiting softening points below about 400. degree. C. , coefficients of thermal expansion (25. degree. -300. degree. C. ) in excess of about 180. times. 10. sup. -7 /. degree. C. , high electrical conductivity, and electrochromic behavior. The copper-containing glasses may also demonstrate thermochromic properties.


Roger Bartholomew Photo 8

Packaging Of High Power Semiconductor Lasers

US Patent:
5629952, May 13, 1997
Filed:
Jun 7, 1995
Appl. No.:
8/481008
Inventors:
Roger F. Bartholomew - Painted Post NY
Paul A. Jakobson - Corning NY
Douglas W. Hall - Corning NY
Julia A. Sharps - Corning NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
H01S 300, H01L 2336
US Classification:
372 33
Abstract:
A package for a high power semiconductor laser comprising a hermetically sealed container filled with a dry gaseous medium containing oxygen. The presence of oxygen in the laser atmosphere is counter to standard practice in the art which teaches the use of an atmosphere of a dry inert gas. The package also includes a getter for organic impurities, e. g. , a getter composed of a porous silica or a zeolite. The hydrogen content of the materials used to form the package are reduced by baking at an elevated temperature for an extended period of time, e. g. , at 150. degree. C. for 200 hours.


Roger Bartholomew Photo 9

Packaging Of High Power Semiconductor Lasers

US Patent:
5770473, Jun 23, 1998
Filed:
Apr 7, 1997
Appl. No.:
8/833548
Inventors:
Douglas W. Hall - Corning NY
Paul A. Jakobson - Corning NY
Julia Alyson Sharps - Corning NY
Roger F. Bartholomew - Painted Post NY
Assignee:
Corning Incorporated - Corning NY
International Classification:
H01L 2100
US Classification:
438 26
Abstract:
A package for a high power semiconductor laser comprising a hermetically sealed container filled with a dry gaseous medium containing oxygen. The presence of oxygen in the laser atmosphere is counter to standard practice in the art which teaches the use of an atmosphere of a dry inert gas. The package also includes a getter for organic impurities, e. g. , a getter composed of a porous silica or a zeolite. The hydrogen content of the materials used to form the package are reduced by baking at an elevated temperature for an extended period of time, e. g. , at 150. degree. C. for 200 hours.


Roger Bartholomew Photo 10

Rare Earth Doped Optical Glasses

US Patent:
2002007, Jun 20, 2002
Filed:
Nov 15, 2001
Appl. No.:
09/991422
Inventors:
Roger Bartholomew - Painted Post NY, US
Heather Boek - Corning NY, US
Michelle Pierson - Painted Post NY, US
Carlton Truesdale - Corning NY, US
International Classification:
G02B006/16, C03B037/018, C03C003/095
US Classification:
385/142000, 385/123000, 359/343000, 065/413000, 501/064000
Abstract:
A glass component in an optical system, which may be a lazing or an optical amplifying medium, comprising a silicate base glass doped with at least two Group III B elements, the glass, and a method of preventing clustering of a rare earth metal ion in the glass.