Color identifying device for identifying colors of reaction surfaces produced by chemical reaction and gas identifying device

Abstract

A color identifying device includes a mount block, a color detector, a lens and a color identifier. A reactive board having a plurality of surfaces to be measured in respective predetermined positions is mounted in the mount block. The color detector has a plurality of color measuring areas corresponding respectively to the reaction surfaces of the reactive board mounted in the mount block. The lens forms images of the surfaces of the reactive board mounted in the mount block on the respective color measuring areas. The color identifier identifies the colors of the surfaces based on output signals from the corresponding color measuring areas.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram of a gas identifying device according to the present invention;

FIG. 2 is a perspective view of a reactive board of the gas identifying device shown in FIG. 1;

FIG. 3 is a view showing a CCD of the gas identifying device shown in FIG. 1;

FIG. 4 is a view showing the CCD with images formed thereon;

FIG. 5 is a view showing a CCD with a linear variable filter (LVF);

FIG. 6 is a view showing a memory of the gas identifying device shown in FIG. 1;

FIG. 7 is a flowchart of an operation sequence of the gas identifying device shown in FIG. 1;

FIG. 8 is a block diagram of a gas identifying device according to a first embodiment of the present invention;

FIG. 9 is a view of a reactive board of the gas identifying device shown in FIG. 8;

FIG. 10 is a view showing a CCD of the gas identifying device shown in FIG. 8;

FIGS. 11A and 11B are views showing the relationship of the reactive board mounted in a mount block, a lens, a filter, and the CCD;

FIG. 12 is a view showing the CCD on which the images of reaction surfaces are formed by the lens;

FIG. 13 is a diagram showing an example of data stored in a spectrum database of the gas identifying device shown in FIG. 8;

FIG. 14 is a view showing a memory of the gas identifying device shown in FIG. 8;

FIG. 15 is a diagram showing an example of spectral data representative of color changes of a reaction surface which are stored in the memory;

FIG. 16 is a flowchart of an operation sequence of the gas identifying device shown in FIG. 8;

FIG. 17 a through 17c are diagrams illustrative of a method of identifying spectral information;

FIG. 18 is a block diagram of a gas identifying device according to a second embodiment of the present invention;

FIG. 19 is a view of a reactive board and a color CCD of the gas identifying device shown in FIG. 18; and

FIG. 20 is a view showing a memory of the gas identifying device shown in FIG. 18.

Claims

1. A color identifying device comprising: a mount block for mounting a board to be measured which has a plurality of surfaces to be measured in predetermined positions, respectively;a color detector having a plurality of color measuring areas corresponding respectively to said surfaces while said board is mounted on said mount block;a lens for forming respective images of said surfaces of said board mounted on said mount block, respectively on said color measuring areas corresponding respectively to said surfaces; anda color identifier for identifying colors of said surfaces which correspond respectively to said color measuring areas, based on output signals from said color measuring areas corresponding respectively to said surfaces.

2. The color identifying device according to claim 1, wherein said output signals from said color measuring areas represent spectrums of the colors of said surfaces which correspond respectively to said color measuring areas.

3. The color identifying device according to claim 1, wherein said output signals from said color measuring areas represent three components of the colors of said surfaces which correspond respectively to said color measuring areas.

4. The color identifying device according to claim 3, wherein said output signals from said color measuring areas represent red, green and blue components of the colors of said surfaces which correspond respectively to said color measuring areas.

5. A gas identifying device comprising: a mount block for mounting a reactive board having a plurality of reaction surfaces disposed in predetermined positions, respectively, said reaction surfaces having colors variable by chemical reactions between a gas to be identified and chemical reagents;a color detector having a plurality of color measuring areas corresponding respectively to said reaction surfaces while said board is mounted on said mount block;a lens for forming respective images of said reaction surfaces of said board mounted on said mount block, respectively on said color measuring areas corresponding respectively to said surfaces; anda gas identifier for identifying said gas based on output signals from said color measuring areas corresponding respectively to said surfaces.

6. The gas identifying device according to claim 5, wherein said output signals from said color measuring areas represent spectrums of the colors of said reaction surfaces which correspond respectively to said color measuring areas.

7. The gas identifying device according to claim 5, wherein said output signals from said color measuring areas represent three components of the colors of said reaction surfaces which correspond respectively to said color measuring areas.

8. The gas identifying device according to claim 7, wherein said output signals from said color measuring areas represent red, green and blue components of the colors of said reaction surfaces which correspond respectively to said color measuring areas.