JPS61100832A - Three-dimensional spectrum displaying device - Google Patents

Abstract

PURPOSE:To quantitatively handle spectrum intensities, by reading out the spectrum intensity of optional one point designated by a cursol controlling device from a storage device and displaying the spectrum intensity. CONSTITUTION:In case where spectra having two parameters of, for example, excitation wavelength and fluorescent wavelength are handled, the excitation wavelength is fixed by a fluorescent spectrophotometer 1 and spectrum signals obtained when the fluorescent wavelength is scanned are sent to a spectrum storage device 2 at every fixed wavelength interval. Then the storage device 2 reads the excitation and fluorescent wavelengths and stores the spectrum signals at corresponding addresses. Thereafter, the spectrophotometer 1 returns the fluorescent wavelength to the start and performs the similar scanning by driving the excitation wavelength by a fixed quantity. After scanning, the spectrophotometer 1 causes the storage device 2 to store spectrum signals obtained by the scan. These operations are repeated until the excitation wavelength reaches the final wavelength and total spectrum signals are stored. The stored information is displayed by means of a picture image displaying device 3 and the spectrum signal of one point designated by a cursol controlling device 4 is displayed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a three-dimensional spectrum display device, and particularly to a three-dimensional spectrum display device suitable for quantitatively handling a spectrum having two parameters.

[Background of the invention]

Some spectra are determined as a function of two parameters. For example, the excitation wavelength and fluorescence wavelength of a fluorescence spectrum, and the retention time and wavelength of a chromatography. These have three-dimensional information including spectral intensity, and are displayed in a map form using equal straight lines. Regarding this spectral representation method, see Chi+aia, 37. 5 in (1983)
“Total Luminescence” by Uter et al.
This conventional method has the disadvantage that it is not suitable for quantitative treatment because the spectral intensity cannot be accurately read between isolines.

[Object of the Invention] The present invention has been made in view of the above, and its purpose is to effectively display a three-dimensional spectrum having two parameters in a two-dimensional space and to quantitatively treat it. The object of the present invention is to provide a three-dimensional spectrum display device that can perform the following.

[Summary of the invention]

The first feature of the present invention is that an image display device that reads information stored in a storage device that stores spectral signals and displays it on a screen uses two factors of the spectral signal, P and P2.
A cursor control device for specifying any one point on the coordinate system, and a spectrum at any one point specified by this cursor control device. The present invention further comprises a display means for reading out the intensity from the storage device and displaying it at the top of the screen of the image display device. Second
is characterized in that the cursor control device is configured to specify two arbitrary points on the coordinate system, and the display means displays the spectral intensity on a cross section defined by the two arbitrary points specified by the cursor control device. is read out from the storage device and displayed as a two-dimensional spectrum on the Pl or P2 axis on the screen of the image display device.

[Embodiments of the invention]

The present invention will be explained in detail below using the embodiments shown in FIGS. 1 to 7.

FIG. 1 is a block diagram showing an embodiment of the three-dimensional spectrum display device of the present invention. In Figure 1, 1 is excitation,
A spectrofluorometer having two spectrometers for fluorescence; 2 is a spectral storage device that inputs the spectral signal from the spectrofluorometer 1 and stores the spectral information in an address corresponding to the wavelength; 3 is an image display device; CRT display 4 is a cursor control device for specifying any point on the screen of the CRT display. The spectrofluorometer 1 first fixes the excitation wavelength and scans the fluorescence wavelength, and sends the resulting spectrum signal to the spectrum storage device 2 at regular wavelength intervals. The excitation wavelength and fluorescence wavelength of the device are read, and the spectral signals are stored in the addresses corresponding to them. That is, when the fluorescence wavelength scan is completed, the spectrofluorometer 1 returns the fluorescence wavelength to the start wavelength, drives the excitation wavelength by a certain amount, and then starts the fluorescence wavelength scan,
The spectrum signal is stored in the spectrum storage device 2. By repeating this operation until the excitation wavelength reaches the final wavelength, the total fluorescence spectrum signal is stored in the spectrum storage device 2. After that, the image display device 3 reads the information stored in the spectrum storage device 2,
Find the excitation wavelength and fluorescence wavelength at which the spectral intensity is equal to a certain value, and plot them on a screen with the fluorescence wavelength on the horizontal axis and the excitation wavelength on the vertical axis.

By performing this for all spectrum signals stored in the spectrum storage device 2, a spectral contour map is obtained on the screen of the image display device 3.

An example of the above procedure is shown in the second flowchart.

The cursor control device 4 in FIG. 1 specifies an arbitrary point on the contour map by moving the cursor on the image display device 3. Thereby, the image display device 3 calculates the excitation wavelength and fluorescence wavelength corresponding to the cursor position, and further,
Spectral signals corresponding to the excitation wavelength and fluorescence wavelength are read from the spectrum storage device 2, and these values are displayed on the screen of the image display device 3.

An example of the above procedure is shown in the flowchart of FIG. 3, and an example of the screen at that time is shown in FIG. In FIG. 4, numeral 5 is a cursor, and numerals 6, 7, and 8 are excitation wavelength, fluorescence wavelength, and fluorescence spectral intensity, respectively.

According to the embodiment of the present invention described above, an arbitrary point on the spectrum contour map is designated with the cursor 5, and the spectrum signal at that position is directly read from the spectrum storage device 2 and displayed on the screen of the image display device 3. This has the advantage that the spectrum at any position can be read accurately.

Other embodiments of the present invention will be described below with reference to FIGS. 5 to 7. FIG. 5 is a spectral isoline map in another embodiment of the present invention. In Figure 5, 9 and 10
are two cursors arbitrarily set on the contour map. In this case, the image display device 3 uses the cursor 9
Calculate the corresponding excitation wavelength and fluorescence wavelength on the straight line connecting
It is displayed on a graph with the excitation wavelength as the horizontal axis and the spectral intensity as the vertical axis. FIG. 6 is a diagram showing one embodiment thereof. FIG. 7 is a flowchart showing an example of the procedure at that time.

In this case, two isolinear maps are shown in Fig. 5, but in such a case, there are two straight lines connecting the two points specified by the two cursors 9 and 10 as shown in the figure. It is desirable to configure the cursor control device 4 to specify two points that pass through the peak of the isoline map. In this way, a graph can be displayed as shown in FIG.

According to this embodiment, an arbitrary two-dimensional spectrum can be obtained from an isoline map, and there is an effect that correspondence with a conventional two-dimensional spectrum is facilitated.

In addition, in the above embodiment, the fluorescence spectrum was taken as an example, and the case where the parameters were the excitation wavelength and the fluorescence wavelength was described. Good too. In addition, the spectrum storage device v12, the image display device 3, and the cursor control device, or
Since it can be easily realized using computer software, it may also be replaced with a program.

〔Effect of the invention〕

As explained above, according to the present invention, a three-dimensional spectrum having two parameters can be effectively displayed in a two-dimensional space, and can be handled quantitatively, allowing reading of spectrum values and expansion of the two-dimensional spectrum. This has the effect of making it easier.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing an embodiment of the three-dimensional spectrum display device of the present invention, and FIG. 2 is a flowchart showing an embodiment of the procedure for displaying spectrum contour lines in FIG. 1.
FIG. 3 is a flowchart showing one embodiment of the procedure for reading the spectrum signal in FIG. 1, FIG. 4 is a diagram showing one embodiment of the screen, and FIGS. 5 and 6 show other embodiments of the present invention. FIG. 7 is a diagram showing an example of an isoline map and a graph with the excitation wavelength on the horizontal axis and the spectral intensity on the vertical axis for explanation, and FIG. 7 is a flowchart showing an example of the procedure at that time. DESCRIPTION OF SYMBOLS 1... Spectrofluorophotometer, 2... Spectral storage device, 3... Image display device, 4... Cursor control device,
5... Cursor, 6... Excitation wavelength, 7... Fluorescence wavelength, 8... Fluorescence spectrum intensity, 9, 10... Two cursors.

Claims (1)

[Claims] 1. A storage device that stores a spectral signal, and an image display device that reads information stored in the storage device and displays it on a screen, and the spectral signal is determined by two factors P_
1 and P_2, and the image display device is configured to display a contour map on a coordinate system consisting of the P_1 and P_2 of the storage device, in which any point on the coordinate system The method further comprises a cursor control device for specifying a point, and a display means for reading out the spectrum intensity at any one point specified by the cursor control device from the storage device and displaying it on the screen of the image display device. Characteristic three-dimensional spectrum display device. 2. A storage device that stores a spectral signal, and an image display device that reads information stored in the storage device and displays it on a screen, and the spectral signal is determined by two factors P_
1 and P_2, and the plane image display device displays a contour map on the coordinate system consisting of the P_1 and P_2 of the storage device, and the area image display device specifies any two points on the coordinate system. a cursor control device to
The spectral intensity on the cross section determined by any two points specified by the cursor control device is read from the storage device and displayed as P_1 or P on the screen of the image display device.
A three-dimensional spectrum display device comprising: display means for displaying a two-dimensional spectrum on two axes. 3. The cursor control device is configured to designate a straight line connecting two specified points to pass through peak points of at least two contour maps when there are two or more contour maps. A three-dimensional spectrum display device according to scope 2.