G - Physics – 01 – B
Patent
G - Physics
01
B
G01B 3/02 (2006.01) B25H 7/00 (2006.01) B25H 7/04 (2006.01) B43L 7/00 (2006.01)
Patent
CA 2510983
A transparent measuring device (32) with enhanced visibility lines (44) formed on a transparent substrate having opposing planar front and back surfaces and with at least one opaque line (40) formed on one of the front and back surfaces and at least one transparent line formed on one of the front and back surfaces to be colinear with the at least one opaque line to present a composite line where the transparent line permits viewing of material on which the device is placed while highlighting the at least one opaque line for enhanced visibility. The transparent line may be formed of excitable pigment that reacts to light, such as a black light, or that retains luminance after exposure to light.
L'invention concerne un dispositif de mesure transparent comprenant des lignes plus visibles formées sur un substrat transparent ayant des surfaces planes avant et arrière opposées ; au moins une ligne opaque formée sur la surface avant ou la surface arrière et au moins une ligne transparente formée sur la surface avant ou arrière de manière colinéaire avec la ou les ligne(s) opaque(s) pour former une ligne composite, la ligne transparente permettant de voir le matériau sur lequel le dispositif est placé tout en faisant ressortir la ou les ligne(s) opaque(s) pour une meilleure visibilité. La ligne transparente peut être constituée de pigments excitables qui réagissent pour éclairer à la manière d'une lumière noire ou qui retiennent la luminance après exposition à la lumière.
Borden Ladner Gervais Llp
Rulersmith Ip Inc.
Schafer Margaret D.
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