Optical: systems and elements – Signal reflector – 3-corner retroreflective
Patent
1996-01-19
1998-01-06
Phan, James
Optical: systems and elements
Signal reflector
3-corner retroreflective
359530, G02B 5122, G02B 5124
Patent
active
057061327
ABSTRACT:
A cube corner retroreflective sheeting construction comprising alternating zones of cube corner element arrays disposed at approximately ninety degrees orientations to provide exactly two principal plane of improved retroreflective performance in response to light incident on the sheeting at high entrance angles is disclosed. According to one embodiment the sheeting includes a body layer which has an elastic modulus less than 7.times.10.sup.8 pascals and cube corner elements formed from a material which has an elastic modulus greater than 16.times.10.sup.8 pascals. According to a second embodiment the sheeting includes an overlay film having two major surfaces and comprising a first polymeric material and a plurality of arrays of substantially independent cube corner elements bonded to a major surface of the overlay film having a minimal, fractured land.
REFERENCES:
patent: 3190178 (1965-06-01), McKenzie
patent: 3450459 (1969-06-01), Haggerty
patent: 3632695 (1972-01-01), Howell
patent: 3684348 (1972-08-01), Rowland
patent: 3689346 (1972-09-01), Rowland
patent: 3700305 (1972-10-01), Bingham
patent: 3712706 (1973-01-01), Stamm
patent: 3810804 (1974-05-01), Rowland
patent: 3811983 (1974-05-01), Rowland
patent: 3830682 (1974-08-01), Rowland
patent: 3924929 (1975-12-01), Holmen et al.
patent: 3926402 (1975-12-01), Heenan et al.
patent: 3935359 (1976-01-01), Rowland
patent: 3992080 (1976-11-01), Rowland
patent: 4025159 (1977-05-01), McGrath
patent: 4066236 (1978-01-01), Lindner
patent: 4066331 (1978-01-01), Lindner
patent: 4202600 (1980-05-01), Burke et al.
patent: 4243618 (1981-01-01), Van Arnam
patent: 4332847 (1982-06-01), Rowland
patent: 4349598 (1982-09-01), White
patent: 4414316 (1983-11-01), Conley
patent: 4486363 (1984-12-01), Pricone et al.
patent: 4555161 (1985-11-01), Rowland
patent: 4576850 (1986-03-01), Martens
patent: 4582885 (1986-04-01), Barber
patent: 4588258 (1986-05-01), Hoopman
patent: 4601861 (1986-07-01), Pricone et al.
patent: 4668558 (1987-05-01), Barber
patent: 4775219 (1988-10-01), Appeldorn et al.
patent: 4801193 (1989-01-01), Martin
patent: 4895428 (1990-01-01), Nelson et al.
patent: 4938563 (1990-07-01), Nelson et al.
patent: 5066098 (1991-11-01), Kult et al.
patent: 5077117 (1991-12-01), Harper et al.
patent: 5117304 (1992-05-01), Huang et al.
patent: 5138488 (1992-08-01), Szczech
patent: 5175030 (1992-12-01), Lu et al.
patent: 5183597 (1993-02-01), Lu
patent: 5189553 (1993-02-01), Smith
patent: 5213872 (1993-05-01), Pricone et al.
patent: 5229882 (1993-07-01), Rowland
patent: 5236751 (1993-08-01), Martin et al.
patent: 5264063 (1993-11-01), Martin
patent: 5272562 (1993-12-01), Coderre
patent: 5376431 (1994-12-01), Rowland
patent: 5450235 (1995-09-01), Smith et al.
Yoder, P.R. Jr., "Study of Light Deviation Errors in Triple Mirrors and Tetrahedral Prisms," J. Optical Soc. of America, vol. 48, No. 7, Jul. 1959, pp. 496-499.
Priola, A., et al., Proceedings of the XIII International Conference in Organic Coatings Science and Technology, Athens, Greece, Jul. 7-11, 1987, pp. 308-318.
Finster, Schmidt-Clausen, "Optimum Identification of Trucks for Real Traffic Situations", Report on Research Proj. 1.9103 of the Fed. Hwys. Agency, Apr. 1992.
Leighton, J. et al., "RF Welding of PVC and Other Thermoplastic Compounds," ANTEC, 1992, pp. 724-728 No Month.
Benson Gerald M.
Frey Cheryl
Kelliher John C.
Lasch James E.
Nestegard Susan K.
Caven Jed W.
Jensen Stephen C.
Jordan Robert H.
Minnesota Mining and Manufacturing Company
Phan James
LandOfFree
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