METHOD AND LABEL FOR RECOGNIZING FIGURE BY INFRARED VISION IN ANY ENVIRONMENT

Abstract

A label comprising some figures that can be recognized by infrared vision devices. The main object is to put a figure surface on or near a reference surface and cooling one of these surfaces, in order to achieve cool surface and warm surface, enabling infrared vision devices to discriminate between the surfaces. The cooling of the surface is achieved by a Latent heat effect due to a evaporation of a liquid absorbed on said surface.

Claims

1. A method for recognizing a figure or figures, by infrared vision devices, using a related combination of a first and a second surfacea reference surface and a figure surface or vice versawherein, said first surface, either the reference or the figure, is made of material with a capability to absorb evaporated liquid, wherein the evaporation of said liquidwhen existscools down said surface; said second surface, either the reference or the figure, is made of a low emissivity material; and using the emissivity difference, between two said surfaces, to recognize said figure.

2. The method of claim 1, wherein using for said second surface a material that further is a hydrophobic material.

3. The method of claim 1, used by attaching said figure surface on said reference surface.

4. The method of claim 1, used by printing said figure surface on said reference surface, using a dedicated ink.

5. The method of claim 1, used by laying both surfaces on mutual base, nearby.

6. The method of claim 1, further includes a step of wetting the surface that made of material with a capability to absorb liquid.

7. The method of claim 6, further using a material that changes its color while wetted for said surface with a capability to absorb liquid.

8. A label with at least one figure, said figure can be recognized by infrared vision devices, wherein said label made of a related combination of first and second surfacesa reference surface and a figure surface or vice versawherein, said first surface, either the reference or the figure, is made of material with a capability to absorb evaporated liquid, wherein the evaporation of said liquidwhen existscools down said surface; and said second surface, either the reference or the figure, is made of a low emissivity material.

9. The label of claim 8, wherein said figure surface is attached on said reference surface.

10. The label of claim 8, wherein said figure surface is printed on said reference surface.

11. The label of claim 8, wherein said high emissivity material is made of a non-absorbing.

12. The label of claim 8, wherein said material with a capability to absorb evaporate liquid, has the capability to change its color while it is wet.

13. The label of claim 8, wherein said figure is made of a number of elements or zones, wherein said elements or zones having a gradient emissivity that enables to discriminate between elements or zones.

14. The label of claim 8, wherein said second surface is made a material that further is a hydrophobic material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other features and attendant advantages of the present invention will be more fully appreciated from the following detailed description when considered in connection with the accompanying drawings in which like reference characters designate like or corresponding parts throughout the several views, and wherein:

[0032] FIG. 1 illustrates a label according to the present invention.

[0033] FIG. 2 illustrates side by side surfaces method.

[0034] FIG. 3 illustrates label with gradient image.

DETAILED DESCRIPTION OF THE ILLUSTRATED EMBODIMENTS

[0035] The principles and operation of the method and the label, according to the present invention, may be better understood with reference to the drawing and the accompanying description.

[0036] FIG. 1 illustrates a label according to the present invention. The label 10 is made of a reference surface 11 and a figure surface 12. FIG. 1A illustrates the label from the front view and FIG. 1B illustrates the label from the side view. The reference surface 11 can be made of material with a capability to absorb evaporate liquid, while the figure surface 12 is made of a low emissivity material preferably non-absorbing materialor vice versathe reference surface 11 can be made of a low emissivity material preferably non-absorbing material, while the figure surface 12 is made of material with a capability to absorb evaporate liquid.

[0037] Liquid absorbing material, can be any material that can get wet and doesn't repels liquid, not limited to fabrics and paper. It needs to have a higher emissivity than 0.7 in order to get cooler from the evaporation effect.

[0038] FIG. 2 illustrates side by side surfaces method. FIG. 2A illustrates a front view and FIG. 2B illustrates side view. In this figure the reference surface 11 and the figure surface 12 are laid side by side of on a mutual base 13. As described in FIG. 1, one of the surfaces can be made of material with a capability to absorb evaporate liquid, while the other is made of a low emissivity material preferably non-absorbing material.

[0039] FIG. 3 illustrates label with gradient image. In another configuration, the figure surface 12 can be made to create gradient image 14 in the thermal device by using a gradient emissivity surface that have different emissivity zones or graphics that will be differently affected by the absorbing layer or alternatively, a gradient can be created with the absorbing layer by using different density or different absorbing capability.