JPH05235141A - Electronic measuring instrument - Google Patents

Abstract

PURPOSE:To prevent the tube face of the title instrument from being electrified. CONSTITUTION:An electronic measuring instrument 1 such as an oscilloscope, a waveform monitor or the like is provided with a tube face 4 equipped with a touch sensor function. In the electronic measuring instrument, an acrylic plate 6 to which a transparent conductive film 5 has been executed is attached to the tube face 4 and the transparent conductive film 5 is grounded to a ground 7. Thereby, it is possible to economically and simply prevent the electrification of static electricity. In addition, even when, e.g. the color reproduction characteristic or the defect level of a CCD is measured by using the electronic measuring instrument, it is possible to prevent the trouble of the CCD due to an electrostatic breakdown or electrification.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic measuring instrument such as an oscilloscope or a vectorscope, which has a tube surface with a touch sensor function provided with antistatic measures.

[0002]

2. Description of the Related Art A conventional technique will be described with reference to FIG. Figure 2
FIG. 3 is a partial perspective view of an electronic measuring device showing a tube surface portion of a conventional technique.

In FIG. 2, reference numeral 1 generally indicates an electronic measuring instrument such as an oscilloscope or a waveform monitor. Reference numeral 2 indicates a case, reference numeral 3 indicates an operating portion in which switches and the like are arranged, and reference numeral 4 indicates a tube surface with a touch sensor function (hereinafter, simply referred to as “tube surface”).

In recent years, the number of electronic measuring instruments of this type in which the operation keys are changed by touching the tube surface 4 with the hands is increasing, and it is also used for the inspection of semiconductor integrated circuit devices (hereinafter simply referred to as "IC"). ing. For example, the color reproducibility characteristic of a solid-state imaging device (CCD), the defect level, etc. are measured.

The tube surface 4 of the electronic measuring instrument 1 as described above is normally not protected against static electricity even though static electricity of 1000 V or more is charged.

[0006]

Therefore, when the electronic measuring instrument 1 having such a tube surface 4 is used in an IC inspection line, the tube surface 4 is touched by hand even though it is charged. , If you grab the IC as it is, the IC may be destroyed by static electricity, or it may become charged with other obstacles, for example,
It causes the generation of noise. This invention made it a subject to eliminate such an inconvenience.

[0007]

Therefore, in the present invention, the above problem is solved by attaching a transparent conductive film to the front surface of the tube surface and grounding the transparent conductive film to the ground.

[0008]

By taking such means, static electricity will not be accumulated on the tube surface.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a partial perspective view of an electronic measuring instrument showing a tube surface portion of the present invention. The same parts as those of the conventional electronic measuring instrument shown in FIG. 2 are designated by the same reference numerals.

In this embodiment, a transparent acrylic plate 6 having a transparent conductive film 5 such as ITO on its surface is attached to the tube surface 4, and the transparent conductive film 5 is grounded to the ground 7 of the case 2. The transparent acrylic plate 6 provided with such a transparent conductive film 5 may be attached by a cover method or may be directly attached to the tube surface 4.

[0011]

As described above, since the electronic measuring instrument of the present invention can take antistatic measures with a simple structure,
It is very economical and can prevent damage to ICs and other obstacles due to electrification.

[Brief description of drawings]

FIG. 1 is a partial perspective view of an electronic measuring instrument showing a tube surface portion, which is an embodiment of the present invention.

FIG. 2 is a partial perspective view of an electronic measuring device showing a tube surface portion of a conventional technique.

[Explanation of symbols]

 1 electronic measuring instrument 2 case 3 operation part 4 tube surface with touch sensor function 5 transparent conductive film 6 transparent acrylic plate 7 ground

Claims (1)

[Claims] 1. An electronic measuring instrument characterized in that a transparent conductive film is attached to the front surface of a tube surface having a touch sensor function and the transparent conductive film is grounded.