[특허]Retroreflective sign having improved legibility

[미국특허] Retroreflective sign having improved legibility 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G09F-013/16
출원번호	US-0438691 (1989-11-17)
발명자 / 주소	Woltman Henry L. (St. Paul MN)
출원인 / 주소	Minnesota Mining and Manufacturing Company (St. Paul MN 02)
인용정보	피인용 횟수 : 33 인용 특허 : 0

초록 ▼

A sign having a face bearing an informational legand thereon, the face comprising at least one legend portion and at least one background portion, and the sign comprising at least one legend segment and at least one background segment, which segments are defined by the legend and background portions, wherein at least part of at least one of the legend and background segments is retroreflective and translucent. The segments of the signs which are translucent and retroreflective exhibit increased luminance under adverse lighting conditions, thereby increasing the conspicuity and legibility of the sign.

대표청구항 ▼

A sign located adjacent a road having a face bearing an informational legend thereon, said face comprising at least one legend portion and at least one background portion, each of said legend portions of said face defining a cross-sectional legend segment of said sign, said legend segment extending from said legend portion through the entirety of said sign, and each of said background portions of said face defining a cross-sectional background segment of said sign, said background segment extending from said background portion through the entirety of said sign, wherein at least one of said legend and background segments is both retroreflective and translucent such that light incident to the front surface of said retroreflective and translucent segment is retroreflected and light incident to the back surface of said retroreflective and translucent segment is transmitted through said front surface.

이 특허를 인용한 특허 (33) 인용/피인용 타임라인 분석

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Blanchard, Jay, Method and apparatus to prevent ghosting in a recycled road sign.
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Blanchard, Jay, Method and apparatus to recycle a road sign.
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Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for automated true object-based image analysis and retrieval.
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Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for automated true object-based image analysis and retrieval.
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Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for automated true object-based image analysis and retrieval.
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Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for automated true object-based image analysis and retrieval.
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Retterath, Jamie E.; Laumeyer, Robert A., Methods and apparatus for automated true object-based image analysis and retrieval.
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Dreyer John F. ; Fleming Madeleine B., Modulating retroreflective article.
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Laumeyer, Robert A.; Retterath, Jamie E., Network-based navigation system having virtual drive-thru advertisements integrated with actual imagery from along a physical route.
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Ley-Owens, Lorraine C., Overlay for signs.
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Adams, William E.; French, Matthew H., Reflective decorative light holder.
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Keil, Stanley, Reflective material for signage, buildings and vehicles.
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Jurkovic,Ivica J., Reflective sign.
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Balint Gregory J.,CAX, Retro-reflective sign.
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Dreyer John F. ; Fleming Madeleine B., Retroreflectors having two optical surfaces and varying retroreflectivity.
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Strum, Brandon Gene; Auer, Ronald Frank, Safety cabinet with interlock mechanism.
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Strum, Brandon Gene; Auer, Ronald Frank, Safety cabinet with interlock mechanism.
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Mueller, Wesley J.; Deedrich, Dennis Michael; Auer, Ronald Frank; Bunting, Jeffrey Dale, Safety cabinet with sequential door-closing system.
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Retterath, James E.; Laumeyer, Robert A., System and assessment of reflective objects along a roadway.
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Retterath, James E.; Laumeyer, Robert A., System and assessment of reflective objects along a roadway.
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Retterath, James E.; Laumeyer, Robert A., System and assessment of reflective objects along a roadway.
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Retterath, Jamie E.; Laumeyer, Robert A., System and assessment of reflective objects along a roadway.
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Drew John T., System and method for evaluating sign legibility.
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Retterath, James E.; Laumeyer, Robert A., System for assessment reflective objects along a roadway.
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Retterath,James E.; Laumeyer,Robert A., System for automated determination of retroreflectivity of road signs and other reflective objects.
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Retterath,James E.; Laumeyer,Robert A., System for automated determination of retroreflectivity of road signs and other reflective objects.
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Retterath, James E.; Laumeyer, Robert A., System for road sign sheeting classification.
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Retterath, Jamie E.; Laumeyer, Robert A., System for the determination of retroreflectivity of road signs and other reflective objects.
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Tanaka Osamu,JPX ; Hiromitsu Kiyohito,JPX ; Fushimi Hidenori,JPX, Ultraviolet luminescent retroreflective sheeting.
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Araki, Yoshinori; Shigeyuki, Takiguchi, Variable image-displaying member.
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Nagaoka Yoshiyuki,JPX ; Nakajima Toshitaka,JPX, Wide angle image-displaying sheet and system.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Retroreflective sign having improved legibility 원문보기