Optical: systems and elements – Diffusing of incident light
Patent
1995-11-27
1998-07-14
Callahan, Timothy P.
Optical: systems and elements
Diffusing of incident light
359515, 362341, F21V 700
Patent
active
057813426
ABSTRACT:
The present invention is an improved material and method for use for providing diffuse transflectance of light. By employing an expanded polytetrafluoroethylene (PTFE) comprising a microstructure of polymeric nodes and fibrils, the material of the present invention demonstrates exceptional diffuse reflectivity and transmission of light across a wide spectrum of ultraviolet, visible, and infrared light. Additionally, the material of the present invention provides many properties that have been previously unavailable in highly diffuse transflective material, including a high degree of malleability, moldability and flexibility, and effective reflectivity even at relatively thin cross-sections.
REFERENCES:
patent: 3953566 (1976-04-01), Gore
patent: 3962153 (1976-06-01), Gore
patent: 4035085 (1977-07-01), Seiner
patent: 4096227 (1978-06-01), Gore
patent: 4152618 (1979-05-01), Abe et al.
patent: 4187390 (1980-02-01), Gore
patent: 4354741 (1982-10-01), Mano et al.
patent: 4463045 (1984-07-01), Ahr et al.
patent: 4523319 (1985-06-01), Pfost
patent: 4571448 (1986-02-01), Barnett
patent: 4764932 (1988-08-01), Peterson et al.
patent: 4772124 (1988-09-01), Wooten et al.
patent: 4805181 (1989-02-01), Gibson et al.
patent: 4902423 (1990-02-01), Bacino
patent: 4912720 (1990-03-01), Springsteen
patent: 4994673 (1991-02-01), Perna et al.
patent: 5037618 (1991-08-01), Hagre
patent: 5116115 (1992-05-01), Lange et al.
patent: 5227634 (1993-07-01), Ruyo et al.
patent: 5241280 (1993-08-01), Ishaque et al.
patent: 5263042 (1993-11-01), Kojima et al.
patent: 5410791 (1995-05-01), Wirth et al.
patent: 5422756 (1995-06-01), Weber
patent: 5462705 (1995-10-01), Sprinsteen
patent: 5488473 (1996-01-01), Springsteen et al.
patent: 5596450 (1997-01-01), Hannon et al.
Robert D. Saunders and Henry J. Kostkowski, "Roughened Quartz Surfaces and Teflon as small angle diffusers and depolarizers between 200 and 400 nm," Applied Optic, vol. 28, No. 15, Aug. 1, 1989 pp. 3242-3245.
Victor R. Weidner and Jack J, Hsia, "Reflection Properties of Pressed Polytetrafluoroethylene Powder," J. Optical Society of America, vol. 71, No. 7, Jul. 1981, pp. 856-861.
S. Nutter, C. R. Bower, M. W. Gebhard, R. M. Heinz and G. Spiczak, "Sintered Holan as a Diffuse Reflecting Liner for Light Integration Boxes," Nuclear Instruments & Methods in Physics Research vol. A310, No. 3, Dec. 15, 1991, pp. 665-670.
Literature: TK Lewellen, RS Miyaoka, SG Kohlmyer, "Improving the Performance of the SP-3000 PET Detector Modules," University of Washington, Seattle, Washington, Nov. 1991, pp. 1604-1608.
Literature: K. Wisshak, F. Kappeler, and H. Muller, "Prototype Crystals For the Karlsruhe 411 Barium Fluoride Detector," Physics Research A251 (1986) 101-107.
Literature: Carol J. Bruegge, Albert E. Steigman, Daniel R. Coulter, Robert R. Hale, David J. Diner, "Reflectance stability analysis of Spectralon diffuse calibration panels," SPIE vol. 1493 (1991), pp. 132-142.
Literature: A. W. Springsteen, "A Novel Class of Lambertian Reflectance Materials for Remote Sensing Application," Labsphere, Inc., SPIE, vol. 1109, Optical Radiation Measurements II (1989) pp. 133-141.
Hannon Gregory E.
McGregor Gordon L.
Minor Raymond B.
Callahan Timothy P.
Johns David J.
Kim Jung Ho
W.L. Gore & Associates, Inc.
LandOfFree
High light diffusive and low light absorbent material and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High light diffusive and low light absorbent material and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High light diffusive and low light absorbent material and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1888302