JPS6031184A - Color display for analyzer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] (a) Industrial application field This invention UEPMA (Electron Pr
The present invention relates to a color display device in an analytical instrument such as an OBE Micro Analyzer.

(b) Prior Art Conventionally, in analytical instruments such as EPMA, a color display device as shown in FIG. 1 has been used as means for displaying the scanned image in color. That is, this color display device a includes a control calculation section b1 an external storage device C1 an image display memo +) d, and a display e such as a CRT. Then, the X-ray intensity is measured while moving the EPMA sample stage or electron beam two-dimensionally in the X and Y directions, and the X-ray intensity measured at each point and the data of its position The data is stored at a predetermined address location in the external storage device via the external storage device. When identifying and quantifying a substance, the control calculation section reads out stored data in the external storage device C, and also performs various calculation processes. On the other hand, when displaying a scanned image in color, the control calculation unit reads out the data in the external storage device C one by one, performs calculations for color classification, and then transfers the data to the image display memory d in red, blue, and green. By reading out the image signals stored in the image display memory d by television scanning, a color-coded scanned image is displayed on the display e.

By the way, in such a conventional color display device a, the external storage device C and the image display memo IJd must be provided separately, and the control calculation section or the storage data must be read out for each pixel from the external storage device C to perform calculations. Because of the need for processing, the more pixels the display e has, the longer the access time required to configure the screen. Furthermore, when changing the display color, it is necessary to rewrite the entire contents of the image display memory d, which poses a problem that processing operations become complicated.

(c) Purpose In view of the above-mentioned problems, the present invention shortens the calculation time for reading data for screen display and for color classification.・') Structure To achieve such an object, the present invention provides a data storage/image display memory for storing data measured by an analytical instrument such as an EPMA, and a data storage/image display memory that stores data measured by an analytical instrument such as an EPMA. A look-up table memory for converting color tone is provided between the data storage/image display memory and the display.

(e) Example Hereinafter, the present invention will be explained in detail based on the example shown in FIG. In this example, EPMA was used as the analytical instrument.
We will explain the case where it is applied to.

FIG. 2 is a configuration diagram of an EPMA and a color display device provided in the EPMA. In the same figure, 1 is EPMA
, 2 is a color display device. Reference numeral 4 denotes a control/arithmetic unit that controls the reading of measurement data of scanning positions x, y and X-ray intensity (count values) from EPMAl, and performs various arithmetic processes. Reference numeral 6 denotes a data storage/image display memory (hereinafter referred to as
This dual-purpose memory 6 has a storage area corresponding to a pixel of a display device 8, which will be described later, and each storage area is composed of n bits. 81-i color CR
This is a T indicator. Reference numeral 10 denotes a look-up table memory for converting color tones, and this look-up table memory is configured with a storage capacity of 8U2" x m bits (where m is the number of outputs of the look-up table memory 10, therefore 3 in this example). It is provided between the dual-purpose memory 6 and the display 8. Numeral 12 is a multiplexer that simultaneously turns on and off the output of the n-bit data of the dual-purpose memory 6.

The operation of each part when displaying a scanned image of EPMAl on the color display device 2 having the above configuration will be described.

EPMAi measures the X-ray intensity at each point on the sample surface while moving the sample stage or electron beam in two dimensions in the X and Y directions. Data on the X-ray intensity and its scanning position are sequentially taken into the control calculation section 4. The control calculation unit 4 inputs the scanning position X from the EPMAi to the dual-purpose memory 6.

A predetermined address is designated based on the y data, and the X-ray intensity measurement data is sequentially stored as n-bit data in the storage area of that address. On the other hand, the n-bit data in the dual-purpose memory 6 is read out in parallel in synchronization with the scanning signal of the display 8. This read data is input via multiplexer 12 to look-up table memory 10 as an addressing signal. In the lookup table memory 10, the control calculation unit 4
Code data corresponding to red, blue, and green color tones are stored in advance in a classified manner. Therefore, when the address designation signal is input to the lookup table memory 10, it designates the address of the lookup table memory 10, and in response, the designated address is sent from the lookup table memory 10. A color display signal at the address position is output, and this color display signal is input to the next stage display 8VC. As a result, a scanned image color-coded according to the X-ray intensity is displayed on the screen of the display 8.

When it is desired to change the display color due to the characteristics of the element to be analyzed or other measurements, the control calculation unit 4 first turns off the multiplexer 12 and outputs the dual-purpose memory 6 during the raster retrace period of the display 20. After shutting off and rewriting the code data in the lookup table memory 10 during that time, the multiplexer 12 is turned on. In other words, dual-purpose memory 6
The data stored in the lookup table memory 10 is left as is, and only the data stored in the lookup table memory 10 is rewritten. This causes the display color to change. Also,
When performing qualitative or quantitative determination of the substance to be measured, the data stored in the dual-purpose memory 6 is read into the control calculation unit 4, and the data is processed by the control calculation unit 4.

In this embodiment, an EPMA was used as the analytical instrument, but it goes without saying that the present invention can be widely applied to other analytical instruments such as IMA and SAM.

(f) Effects As described above, according to the present invention, one memory can be used both as a memory for data measured by an analytical instrument and as a memory for displaying images of that data. The calculation time for color classification is greatly reduced.

In addition, the color display can be changed by simply rewriting the lookup table memory, and the processing operation is simple, providing excellent effects.

[Brief explanation of drawings]

FIG. 1 shows a conventional example, and FIG. 2 shows an embodiment of the present invention. Both FIG. 1 and FIG. 2 are configuration diagrams of an EPMA and a color display device attached to the EPMA. 1... Analytical instrument (EPMA), 2... Color display device, 6... Memory for data storage and image display, 8...
Display unit, 10... Lookup table memory. Applicant Shimadzu Corporation Agent Patent Attorney Kazuhide Okada

Claims (1)

[Claims] (1) A data storage/image display memory for storing data measured by an analytical instrument such as an EPMA, and a display for displaying an image of the data stored in the data storage/image display memory; A color display device for an analytical instrument, characterized in that a look-up table memory for converting color tone is provided between a data storage/image display memory and a display device.