JPH05346835A - Light-transmissive mouse pad, manufacture thereof, mouse and coordinate reader - Google Patents

Abstract

PURPOSE:To provide the mouse pad which can accurately input graphic data by using the mouse provided with the coordinate detector of an optical system for accurately detecting coordinate data. CONSTITUTION:A light-transmissive mouse pad 10 is provided by forming line patterns 12X and 12Y, for which the reflectance of a visible light area is low and the reflectance of an infrared area is high, on the sides of a front face 1a and a rear face 1b of a light-transmissive base plate 1. This mouse pad 10 is set on the graphic data and the graphic data are traced by the mouse so that the data can be accurately inputted to a computer.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mouse and a mouse pad used for controlling a computer-processed image, inputting data and control signals, etc., and more particularly to a mouse and a mouse using optical means. The present invention relates to a translucent mouse pad having a small reflectance in the light region.

[0002]

2. Description of the Related Art Cursor control on an input / output screen of a computer, selection of a function displayed on the screen, input of graphic data to the computer, correction of the graphic, control of the computer and input / output of data, etc. On the other hand, a coordinate input device using a mouse that moves on a mouse pad is widely used. Regarding the configuration of the mouse, a mechanical mouse that largely detects a moving direction and a moving distance using a driving member such as a ball, and a moving direction by optically detecting a line pattern indicating coordinates formed on the mouse pad There are two known optical mice that detect the distance traveled.

The optical mouse is excellent in durability because it has no moving parts. Further, since the moving direction and distance are optically detected instead of mechanical means such as friction, the accuracy of figure input data is high. There are some advantages. However, there is a problem in that the detection circuit becomes complicated because it is necessary to identify lines in two directions, for example, X and Y coordinate lines. The applicant of the present application has proposed several methods for solving such problems, and the contents thereof are disclosed in Japanese Patent Publication No. 1-39128, Japanese Patent Publication No. 3-26851, and the like.

The conventional optical mouse and mouse pad are detailed in the above publications, but as shown in FIG.
As the mouse pad 60, the first line pattern 12X indicating the X coordinate is formed on one surface of the transparent substrate 11, and the second line pattern 12Y indicating the Y coordinate is formed on the other surface. Some have been proposed. These line patterns are light-reflecting parallel fine lines and are formed by a thin film layer of a metal having a high light reflectance, such as Al, deposited on the substrate by the method disclosed in JP-A-62-96670. Has been formed.

On the other hand, as shown in FIG. 37, the mouse 20 has a line reading device 21 fixed to the bottom surface 28a of the housing 28. The line reading device 21 includes an X coordinate detecting device 22X that detects a first line pattern 12X that is an X coordinate and a Y coordinate detecting device 22Y that detects a second line pattern 12Y that is a Y coordinate. .. The coordinate detection devices 22X and 22X are provided with light sources 23X and 23, which irradiate line patterns, respectively.
Y, light receiving elements 24X and 24 for detecting the reflected light rays
Y, these light receiving elements 24X, optical systems 25X and 25Y for forming an image on Y, and support members 26X and 26Y for supporting these detection devices. A slider 27 formed of Teflon (trade name) or the like is attached so that the mouse 20 moves smoothly on the mouse pad 10.

As described above, in the conventional mouse and mouse pad, the X-coordinate and the Y-coordinate can be detected by different detecting devices, and the separation of the coordinate data is omitted and the structure is simple and the position is accurate. It is possible to detect.

[0007]

Although the above mouse and mouse pad can be used to control an image with high accuracy, a mouse pad is required to facilitate the input of graphic data and the like. There has been a demand for making it possible to recognize graphic data and the like via this. That is, the line pattern formed on the conventional mouse pad is formed of an Al thin film layer having a high reflectance as described above. In order to maintain accuracy, the lines are formed on the mouse pad so that the line width is about 0.5 mm and the pitch is about 0.5 mm. Furthermore, X
In order to detect the Y coordinate and the Y coordinate, for example, the reflectance of the first line pattern indicating the X coordinate is set to about 50%, and the reflectance of the second line pattern indicating the Y coordinate is set to 9%.
It should be about 0%.

Therefore, in the mouse pad on which the first and second line patterns are formed, the transparency becomes extremely low due to these line patterns.

On the other hand, when inputting graphic data in a word processor, a work station, etc., it is sometimes desired to trace the graphic data with a mouse. There are also cases where it is desired to plot the numerical values selected from the experimental data output by a recorder or the like with a mouse and input them to the computer. In such a case, install a mouse pad on these graphic data or graphs,
It is desirable to plot or trace the necessary parts from above with a mouse. However, as described above, in the conventional mouse pad, it is difficult to see through the pad from below due to the formed line pattern, and it is difficult to perform the above input.
In order to improve the transparency of the mouse pad, it is possible to reduce the density of the line pattern so that the figure placed under the pad can be seen, but the accuracy of position detection decreases as the density of the line pattern decreases. However, the accuracy of the input data is reduced.

In view of the above problems, the present invention provides a mouse pad and a mouse pad which can recognize a graphic placed under the mouse pad while maintaining the density of the line pattern for discriminating the coordinates. It is intended to realize a mouse used for a mouse pad.

[0011]

In order to solve the above problems, in the present invention, a line pattern formed on a mouse pad, and a transparent layer through which an object can be seen through the line pattern. It is formed by. That is, the translucent mouse pad according to the present invention,
At least a translucent substrate and a line pattern group formed on the substrate and defining coordinates in at least one direction are included. The line patterns included in the line pattern group are visible with a low reflectance in the visible light region. It is characterized by being formed of a light transmitting layer.

It is also possible to employ a transparent electrode or the like as the visible light transmitting layer used as such a line pattern and confirm the coordinates by an electric field or a magnetic field. However, the visible light transmissive layer is provided with a reflectance in at least one of the infrared region and the ultraviolet region as a device capable of detecting coordinates with high accuracy and using almost the same function as the technically established optical mouse. It is desirable to form it by a large visible light reflective layer. Further, when forming a line pattern group that defines coordinates in two or more directions, it is effective to form the line patterns formed by the visible light reflection layer with a certain distance in the thickness direction of the substrate.

And, such a visible reflection layer is made of Zr.
O ₂ , TiO ₂ , InO ₂ , CdS, CdSe, CeO
₂ , HfO ₂ , In ₂ O ₃ , SnO ₂ , MgO, Si
O, Ta ₂ O ₅ , Y ₂ O ₃ , ZnSe, ZnS and Z
It can be formed by a high refractive index layer containing at least any high refractive index material selected from the high refractive index material group consisting of rTiO ₄ . Also, with these high refractive index layers,
Formed by a composite layer in which at least one low refractive index layer containing at least one low refractive index material selected from the low refractive index material group consisting of MgF ₂ , CaF ₂ , Na ₃ AlF ₆ and SiO ₂ is laminated. You can also do it. Of course, it is also possible to combine the line pattern of the high refractive index layer and the line pattern of the composite layer,
It is also possible to combine composite layers of different materials.

Further, it is desirable that the substrate used for the translucent mouse pad is composed of a translucent base and a translucent protective film laminated on at least one surface of the base, which is transparent. In the case of a resin base formed of such a resin, it is effective to form a line pattern via a silicon oxide layer laminated on the surface of the base. Further, the line pattern can be formed on the adhesive surface of the protective film, which is adhered to the substrate. The protective film is preferably attached to the base with a transparent adhesive.

The mouse pad as described above is disclosed in JP-A-62 / 62
Although it can be manufactured by a vapor deposition method using a mask pattern as disclosed in JP-96670-A, a vapor deposition process of vapor depositing an visible light reflection layer and a line pattern is formed from the vaporized visible light reflection layer by a photolithography method. It can also be manufactured by a manufacturing method characterized by having at least an etching step.

The mouse used for these translucent mouse pads is a mouse having a position detecting means for detecting a position using at least one set of electromagnetic waves, and the position detecting means is an infrared region and an ultraviolet ray. It is characterized in that at least a focus forming means capable of collecting electromagnetic waves in at least one of the areas and an electromagnetic wave detecting means capable of detecting the electromagnetic waves collected by the focus system are provided.

In such a mouse, it is desirable to provide a position confirmation means near the position detection means for confirming the position detected by the position detection means. And
As the position confirmation means, use is made of a transmission confirmation means capable of seeing the vicinity of the position detected by the position detection means or a light emission confirmation means capable of projecting visible light to the position detected by the position detection means. Is effective.

A coordinate reading device having at least these translucent mouse pad and mouse is also included in the scope of the present application.

[0019]

As described above, the graphic data is visually recognized through the translucent mouse pad having the line pattern group formed on the translucent substrate using the visible light transmissive layer having a low reflectance in the visible light region. Further, it is possible to maintain the density of the line pattern group and perform precise position detection. Since the visible light transmitting layer is used as the line pattern group, it is impossible to determine the position by detecting visible light reflected from the line pattern group as in the conventional optical mouse. Therefore, a visible light transmitting layer is formed by a transparent electrode or the like, and its electric field or magnetic field is detected,
A means for determining a new position such as confirming the position is required.

However, by paying attention to the electromagnetic waves in the infrared region or the ultraviolet region around the visible light region, it is possible to adopt a mouse having an optical system similar to that of an optical mouse with excellent accuracy and simple structure. You can In other words, although the reflectance in the visible light region is small, by forming the line pattern group by the visible light reflective layer having a large reflectance in the infrared region or the ultraviolet region, the graphic data can be visually recognized, and further, the position detection with high accuracy can be performed. It is possible to realize a translucent mouse pad that is possible.

A line pattern having a high reflectance in the infrared region and a line pattern having a high reflectance in the ultraviolet region are formed on the same surface of the pad, and the reflected electromagnetic waves are dispersed by a prism or the like to be used as a detector for each wavelength. By guiding 2
It is also possible to confirm each of the coordinates above the direction. However, by forming a line pattern group that defines coordinates in two or more directions with a constant distance in the thickness direction of the substrate, even in a mouse that detects coordinates using electromagnetic waves of the same wavelength, each line It is possible to employ an optical system that forms a focus in accordance with the distance reflected for each pattern, and the confirmation can be easily performed for each coordinate.

The visible light reflection layer is a thin film of high refractive index layer made of a high refractive index material having a high refractive index laminated on a substrate, or a high refractive index layer and a low refractive index of a low refractive index layer. It can be formed by reducing the reflectance of visible light and increasing the reflectance in the infrared region or the ultraviolet region by a composite layer of a thin film made of a refractive index material and a low refractive index layer.

The substrate used for the mouse pad is
By comprising a light-transmitting substrate and a light-transmitting protective film laminated on at least one surface of the substrate,
A line pattern group can be formed on the surface of the substrate. Then, these line pattern groups can be protected from damage due to contact with a mouse or the like by the protective film laminated on the surface of the substrate. When this substrate is a resin substrate formed of a transparent resin, the silicon oxide layer is previously formed in order to protect the surface damage of the substrate from the high temperature generated when the visible reflection layer is vapor-deposited. Just stack them. In addition, the surface of the substrate can be protected from high temperature by forming it on the adhesive surface of the protective film that adheres to the substrate. By attaching the protective film to the base with a transparent adhesive, the irregularities of the visible reflection layer formed on the surface of the base can be absorbed, and a transparent mouse pad in which the mouse can be easily moved can be realized. it can.

The mouse used for such a translucent mouse pad is reflected by the line pattern group formed on the mouse pad by the focus forming means capable of collecting electromagnetic waves in at least one of the infrared region and the ultraviolet region. Further, infrared rays or ultraviolet rays are imaged on an electromagnetic wave detecting means capable of detecting the electromagnetic waves. Then, by detecting the image formation, the coordinates can be confirmed from the formed line pattern group, and the distance and direction of the mouse movement can be detected. Further, by providing a position confirming means for confirming the position detected by the position detecting means in the vicinity of the position detecting means composed of the focus forming means and the electromagnetic wave detecting means, the graphic data detected by the mouse and inputted It is possible to confirm. In the mouse used for the translucent mouse pad as described above, as the position confirming means, the graphic data input using the transmitting confirming means capable of seeing the vicinity of the position detected by the position detecting means It can be easily confirmed. Further, as the position confirmation means, it is also possible to use a light emission confirmation means capable of projecting visible light through a translucent mouse pad at the position detected by the position detection means. When such a light confirmation means is used, even if there is a distance between the mouse pad and the input object, it is possible to easily confirm the coordinate data input via the mouse.

[0025]

Embodiments of the present invention will be described below with reference to the drawings.

[Embodiment 1] FIGS. 1 and 2 show the structure of a mouse pad according to Embodiment 1 of the present invention. In the mouse pad 10 of this example, a transparent glass (BK7) is used as a substrate 1, a line pattern 12X defining coordinates in the X direction is formed on the front surface 1a, and a back surface 1b is formed in a Y direction orthogonal to the X direction. Line pattern 12 that defines the coordinates
Y is formed. And the line pattern 12X,
The front surface 1a and the back surface 1b on which 12Y is formed are protected by a transparent protective film 2. The outer side of the protective film 2 is formed of a wear-resistant hard coat film 3, and the running property of the mouse and the wear resistance by the graphic data and the like laid under the mouse pad 10 are secured. .. In addition, the lower part of the hard coat film 3 is for preventing the glass from scattering and ensuring the safety when the substrate 1 is broken,
The holding film 4 is formed, and in this example, a strong polyester film is used. Then, the protective film 2 in which the hard code film 3 and the holding film 4 are laminated
Are bonded to the front surface 1a and the back surface 1b of the base 1 by the transparent adhesive 5.

The line patterns 12X and 12Y formed on the mouse pad 10 of this example are infrared rays (wavelength 950 nm) emitted by a light emitting diode attached to the mouse.
Is a line pattern that can reflect. FIG. 3 shows a cross section of the line pattern 12X that defines the coordinates in the X direction in this example. On the surface 1a of glass (BK7) having a refractive index (n) of 1.51633, first, a high refractive index layer L1.1 made of ZrO ₂ having a high refractive index of n of 2.05 is formed. A low-refractive-index layer L1.2 made of MgF ₂ having a low n of 1.38 is laminated on the high-refractive-index layer L1.1. This low-refractive-index layer L1.2 is further made of ZrO ₂ . The high refractive index layer L1.3 is formed.

On the other hand, a line pattern 1 defining the Y direction
2Y is formed of nine layers as shown in FIG.
Of these layers, the odd-numbered layers as viewed from the back surface 1b of the glass, that is, the layers L2.1, L2.3, L2.5, L
2.7 and L2.9 are high refractive index layers, which are formed of ZrO ₂ . And the even-numbered layers, L2.2,
L2.4, L2.6 and L2.8 are low refractive index layers,
It is formed of MgF ₂ .

As described above, by laminating several layers having different refractive indexes, it is possible to form layers having different reflectance depending on the wavelength. This technology uses interference filters,
This is the same as the cold mirror and the like, and the calculation result of totaling the reflected light from each layer is shown in FIG. The film thickness of each layer forming the line pattern of this example is 240 corresponding to λ / 4 of wavelength 950 nm of infrared rays emitted from a mouse.
It is set to nm.

FIG. 5 shows the reflectance from the line pattern 12X defining the X direction with respect to the wavelength. Figure 5
As can be seen in 400 to 700n which is a visible light region
The reflectance at the wavelength of m is about 10% or less. Therefore,
Since the reflectance of the glass without the film is about 4%, it can be said that this line pattern 12X is almost transparent in the visible light region. On the other hand, the reflectance is about 52% in the wavelength region of 950 nm emitted from the mouse. When a light receiving element similar to that of the conventional mouse described above is used, the reflectance ratio may be about 7: 1 or more in order to recognize the line pattern. The reflectance of the glass in this wavelength region is about 5%, which is almost the same as in the visible light region, and the ratio of the reflectance with the line pattern 12X is about 10: 1. Therefore, it is possible to detect the coordinates by using the same detection device as the conventional mouse.

As described above, by combining the high refractive index layer and the low refractive index layer, the reflectance is small in the visible light region,
It is possible to form a line pattern having a high reflectance in the infrared region, and by using this line pattern, a substantially transparent mouse pad can be formed. FIG. 6 shows reflectance data in a state in which the transparent adhesive 5 (ADHI in the figure) used when adhering the protective film 2 is applied to the line pattern 12X having the three-layer structure shown in FIG. .. Adhesive 5 used in this example
Is an acrylic resin adhesive and has a refractive index of about 1.5, which is almost the same as that of glass. Since the low refractive index layer is laminated on the uppermost layer L1.3, the reflectance is 38.
%. However, the reflectance of glass is also
Similar to the visible light region shown in FIG. 6, it decreases to about 2 to 3%, so that a sufficient ratio can be secured.

Further, as described in Japanese Patent Publication No. 1-39128, in the case of forming two line patterns defining two directions, such as the X and Y directions, at a certain distance in the thickness direction of the mouse pad, It is desirable that the other line pattern can be recognized through the line pattern formed on the side on which the mouse runs. Therefore, for example, when the surface on which the line pattern 12X in the X direction is formed is the running side of the mouse, the reflectance of this line pattern 12X is 3
It is desirable to set the reflectance of the line pattern 12Y formed on the opposite side to about 90% by setting it to about 0 to 50%.
As described above, the line pattern 1 of this example
2X has a reflectance of -50% and is suitable as a line pattern on the running surface side of a mouse.

FIG. 7 shows the reflectance of the line pattern 12Y defining the coordinates in the Y direction with respect to the wavelength. As described above, the line pattern 12Y is formed of nine composite layers in which the high refractive index layers and the low refractive index layers are alternately laminated. Its reflectance is -10 in the visible light range.
%, While at 950 nm, ~ 95%
Shows a high value of. As described above, the line pattern 12Y of this example is also a line pattern having a transparent visible region and a high reflectance in the infrared region, and a transparent mouse pad can be formed by using this line pattern. You can Furthermore, the line pattern 1 of this example
2Y has a very high reflectance. Therefore, the above-mentioned ~ 50
By forming the line pattern 12X having a reflectance of 10% on the running surface side of the mouse and forming the line pattern 12Y on the opposite surface side thereof, a translucent mouse pad in which the XY coordinates can be easily separated is formed. It becomes possible.

A high refractive index material forming a line pattern,
Low refractive index materials and combinations thereof are various, for example:
As the high refractive index material, the materials shown in Table 1 below can be used.

[0035]

[Table 1]

As the low refractive index material, those shown in Table 2 can be used.

[0037]

[Table 2]

Various combinations are conceivable also in the configuration of the line pattern using these materials. For example, the line pattern can be formed by one layer of the high refractive index material. FIG. 8 shows T, which is one of the high refractive index materials.
The calculated values of the reflectance of a single layer line pattern using iO ₂ are shown. The line pattern of this example has a wavelength of 500n.
The reflectivity near m is low, and the reflectivity gradually increases at wavelengths on both sides of the m. The reflectance is ˜32% at 950 nm. Therefore, this line pattern is a line pattern having a transparent color of magenta (magenta), and even if the reflectance ratio is one layer, it is possible to secure about 8: 1 with glass. Therefore, it is suitable for the line pattern on the running surface side of the mouse.

The high refractive index material layer and the low refractive index material layer are 1
Of course, a line pattern in which layers are combined can be formed. FIG. 9 and FIG. 10 show the calculation results of the reflectance with a two-layer line pattern. The line pattern shown in FIG. 9 is a pattern formed by laminating one layer each of TiO ₂ which is one of high refractive index materials and MgF ₂ which is one of low refractive index materials. The reflectance in the visible light region is about 20% or less, and the reflectance at 950 nm is 40%.
%. Further, the line pattern shown in FIG.
This is a pattern formed by laminating one layer each of ZrO ₂ which is one of high refractive index materials and MgF ₂ which is one of low refractive index materials. The reflectance in the visible light region is about 10% or less, and the reflectance at 950 nm is about 30%. Therefore, these two-layer line patterns are suitable for forming a pattern on the side on which the mouse runs. Further, since the S / N ratio is not so high, a detector with high sensitivity is required. However, the line pattern of the TiO ₂ single layer shown in FIG. 8 is used for the running surface side of the mouse and the TiO ₂ shown in FIG.
It is also possible to form a transmissive mouse pad by setting the combination of MgF ₂ and MgF _{2 on} the opposite side.

FIG. 11 shows the calculation results of the reflectance of a line pattern formed by laminating five high refractive index material layers and five low refractive index material layers. The line pattern of this example has a visible light region of about 10%, while 950n
m is about 75%, which is suitable for forming a line pattern on the surface opposite to the surface on which the mouse runs.

As described above, various line patterns can be formed by combining the high refractive index material and the low refractive index material. Of course, in these combinations, it is necessary to take into consideration ease of vapor deposition, film uniformity, film internal stress, and the like. Further, in the method for producing these material layers, as disclosed by the applicant of the present application in Japanese Patent Application Laid-Open No. 62-96670, a method of vapor deposition while rotating electrodes is used and a vapor deposition mask is used to achieve high precision. A line pattern can be formed.

[Embodiment 2] In addition to the method for producing a line pattern using the above vapor deposition mask, a line pattern may be formed by using a photolithography method used for highly accurate processing in a semiconductor or the like. It is possible.

First, a glass plate of 2 to 3 mm is cut to a pad size of about 180 × 220 mm. Then, after the cut glass plate is cleaned by an ultrasonic cleaning device, it is placed in a large-sized vacuum vapor deposition device and a plurality of high refractive index material layers and low refractive index material layers as described above are vapor deposited. Then, after vapor deposition, the glass plate is taken out of the apparatus, and a photoresist layer is applied to both surfaces thereof. A stripe-shaped line pattern 12X is formed on the applied photoresist layer by using a mask pattern for a line pattern, for example, a pattern having a width of 0.25 mm and spaced at 0.25 mm intervals.
Is baked on the vapor-deposited film on the surface of the substrate (glass plate). Further, the line pattern 12Y is similarly formed on the back surface of the substrate.
Bake. Then, this substrate is immersed in an etching solution. As this etching solution, Celtex 16 (trade name: XP, manufactured by Nippon Marcel Co., Ltd.) for a vapor deposition film can be used. In this etching step, the unnecessary deposited film previously deposited is removed, and a line pattern is formed by the pattern covered with the photoresist layer. By removing and cleaning the resist from the etched substrate, it is possible to manufacture a substrate having line patterns 12X and 12Y formed on both surfaces. And
By laminating the protective film on both surfaces of this substrate, it is possible to manufacture a mouse pad similar to that of the first embodiment.

When such a photolithography method is used, InO ₂ or InO ₂ and SnO ₂ which is a high refractive index material which is easy to form a pattern by etching.
It is desirable to use a combination of Although the refractive index of InO ₂ can be changed depending on the vapor deposition conditions, the calculation results of the reflectance when the refractive index is 2.3 or 2.1 are shown in FIGS. FIG. 12 shows InO
_The line pattern is formed by one layer of ₂ .
The reflectance in the visible light region is about 20% or less, and about 30% at 950 nm. In this way, InO
_Even with one layer of ₂ , it is possible to form a line pattern which is almost transparent and has a reflectance ratio with glass of about 8: 1. FIG. 13 is a line pattern in which each layer of InO ₂ and MgF ₂ of a low refractive index material is combined in one layer, and it is possible to improve transparency as compared with the line pattern of one layer of InO ₂ shown in FIG. is there.

Also, in FIG. 14, _two layers of InO ₂ are shown.
The reflectance is shown when a line pattern is formed by alternately laminating one layer and one layer made of MgF ₂ . In this line pattern, the reflectance in the visible light region is 10%
The reflectance is as low as below, and the reflectance at 950 nm is as high as about 55%.
Therefore, the three-layer line pattern is used as the line pattern 12Y that defines the Y direction, and the line pattern of FIG.
By setting the line pattern shown in 3 as the line pattern 12X that defines the X direction on the side where the mouse runs,
The same thing as the translucent mouse pad described in the first embodiment can be manufactured. As described above, by using the photolithography method for the thin film deposited on the substrate, it is possible to form a highly accurate line pattern.

[Third Embodiment] FIG. 15 shows a cross section of a translucent mouse pad 10 according to a third embodiment. In the mouse pad 10 of this example, an acrylic resin plate 31 is used as a substrate, a thin film 32 of silicon oxide is vapor-deposited on the front surface 31a and the back surface 31b, and line patterns 12X and 12Y are formed on the outer side of the thin film 32. ing. Then, a protective film 2 is laminated to protect these line patterns 12X and 12Y. Each configuration is the same as that of the first embodiment.
The same reference numerals are given to those similar to those described in 1 and the description will be omitted.

In Examples 1 and 2, transparent glass is used as the substrate, but a transparent plastic plate such as acrylic resin or hard vinyl chloride resin is used because of its weight, resistance to breakage, and ease of processing. It is also conceivable to use it as a substrate. However, it is difficult to bond these resin surfaces to the dielectric thin film, which is a high refractive index material or a low refractive index material, and there is a problem that the resin surface becomes high temperature during vapor deposition and the surface is damaged. Furthermore, in order to increase the refractive index of the dielectric thin film, reduce the reflectance in the visible light region, and increase the reflectance in the infrared region,
It is necessary to raise the temperature of the vapor deposition surface. In order to solve these problems, in the present embodiment, first, SiO is vapor-deposited on the surface of the acrylic resin base 31 to form the silicon oxide film 32 having excellent adhesion and high temperature strength. There is. By stacking the high-refractive index material layer and the low-refractive index material on the silicon oxide film 32, it is possible to prevent the deformation of the substrate and form a line pattern with good adhesion. Therefore, it is possible to manufacture a mouse pad using a light and durable plastic substrate.

FIGS. 16 and 17 show the results of calculating the reflectance when a silicon oxide layer (SiO) is formed on an acrylic resin (PMMA shown in the figures). FIG.
Is the reflectance of a pattern in which one layer each of ZrO ₂ which is a high refractive index material and MgF ₂ which is a low refractive index material is laminated. In the visible light region, the reflectance is approximately 10% or less and 950 nm.
Is about 38%. Figure 17 shows ZrO
_Two layers of ₂ and one layer of MgF ₂ are alternately laminated to form a pattern, which is about 10% or less in the visible light region and about 48% at 950 nm. As described above, by forming the silicon oxide layer on the surface of the acrylic resin and stacking the patterns, a translucent mouse pad similar to that of the first embodiment can be realized. In addition to the acrylic resin, a transparent hard resin such as a hard vinyl chloride resin can be used as the substrate.

[Fourth Embodiment] FIG. 18 shows a cross section of a mouse pad 10 according to a fourth embodiment. In this example,
The line patterns 12X and 12Y are formed on the surface of the holding film 4 of the protective film 2 facing the substrate 1. The other configurations are the same as those in the first embodiment, and therefore the same numbers are given and the description thereof is omitted.

By forming a line pattern on the protective film 2 as in this example, it is possible to create a line pattern that defines a plurality of coordinates with the same line pattern. That is, it is possible to form a line pattern defining a plurality of coordinates simply by forming a line pattern in a certain direction on the protective film 2 and changing the bonding direction of the protective film 2 having the line pattern formed thereon. .. Further, by forming a line pattern on this film, it is possible to continuously form the line pattern, so that it is possible to manufacture at low cost in view of mass productivity.

Further, the heat distortion temperature is 200 to 220 ° C.
By using a high polyester film (polyethylene terephthalate film) or the like, the surface temperature at the time of vapor deposition of the high refractive index material forming the line pattern can be set high. Therefore, a vapor deposition film having a high refractive index and good adhesion can be formed on the film.

19 and 20 show the calculation results of the reflectance of the line pattern formed on the polyester film (PET shown in the drawings). FIG. 19 shows ZrO _{2 which} is a high refractive index material and M which is a low refractive index material.
It is the reflectance of a pattern in which gF ₂ and 1 layer each are laminated, and is about 10% or less in the visible light region and about 28% at 950 nm. FIG. 20 shows that ZrO ₂
Layer, one layer of MgF _2, and S, which is a low refractive index material
A pattern is formed by a layer made of iO, and it is about 10% or less in the visible light region and about 38% at 950 nm. Similarly, In, which is a high-refractive index material in which a pattern is easily formed by photolithography,
Of course, a single layer of O ₂ or a combination of InO ₂ and SnO ₂ may be used. As described above, by stacking the high refractive index material alone, or the high refractive index material and the low refractive index material on the polyester film, a visible light region is substantially transparent and a line pattern having a high reflectance in the infrared region is formed. be able to.

In the mouse pad in which the line pattern is formed on the protective film side of this example, the substrate does not have to be glass, and it is of course possible to use a transparent hard resin such as acrylic resin or hard vinyl chloride resin. is there.

[Embodiment 5] FIGS. 21 to 24 show a mouse suitable for the translucent mouse pad described above. The mouse 20 of this example has substantially the same configuration as the conventional mouse described above, and the line reading device 21 is attached to the bottom surface 28 a of the housing 28. The line reading device 21 is composed of an X coordinate detecting device 22X that detects the first line pattern 12X that is the X coordinate and a Y coordinate detecting device 22Y that detects the second line pattern 12Y that is the Y coordinate. There is. Further, the coordinate detection device 22X is composed of a light source 23X for irradiating a line pattern, a light receiving element 24X for detecting a reflected light beam thereof, and an optical system 25X for forming an image on these light receiving elements 24X. Coordinate detection device 22
Y has the same configuration, and the light source 23 for irradiating the line pattern is an LED for irradiating infrared rays having a wavelength of 950 nm.
Is used. The optical system 25 and the light receiving element 24 are also designed according to this wavelength. In addition, a slider 2 formed of Teflon (trade name) or the like so that the mouse 20 moves smoothly on the mouse pad 10.
7 is attached to the bottom surface 28a. Housing 28
The two switches 29 attached to the switch are click switches, and are attached to select information input to the computer via the mouse 20. The mouse 20 is connected to the computer by the cord 49.

The point to be noted in the mouse 20 of this example is that the cross-shaped target 4 is provided in front of the mouse 20, that is, in the housing 28 near the line reading device 21.
1 is attached to the target scope 40. The target scope 40 is made of transparent resin and is formed so as to form one row together with the X coordinate detection device 22X and the Y coordinate detection device 22Y.
Therefore, the transparent mouse pad 10 described above is placed on a piece of paper on which graphic data such as a drawing is written, and the mouse 2 placed on the mouse pad 10 is placed.
By driving 0 so that the target 41 traces the graphic data, the graphic data is accurately read,
It becomes possible to input. That is, by tracing the graphic data from above the transparent mouse pad 10 with the target 41 formed on the mouse 20, the line reading device 21 of the mouse 20 determines the moving direction and the moving distance of the mouse 20. The infrared ray reflected from the translucent line patterns 12X and Y formed in the above can be detected and input to the computer as graphic data.

The target 41 does not have to be a cross shape formed on the target scope 40.
Any object that can point to a position, such as a pointer, may be used. In the mouse 20 using the optical system of this example, unlike a mechanical mouse, there is no detection error in distance, direction, etc. due to slippage, etc. Therefore, by tracing the graphic data with the target 41,
It becomes possible to input graphic data accurately.

[Sixth Embodiment] FIGS. 25 and 26 show an outline of a mouse according to a sixth embodiment. Mouse 2 of this example
Similarly to the fifth embodiment, 0 is suitable for the translucent mouse pad 10 described above. In the mouse 20 of this example, a transparent window 42 is formed between the click switches 29, and a cross-shaped target 41 is formed in the window 42. Then, the target 41 is arranged in a row in the vicinity of the X-coordinate detection device 22X and the Y-coordinate detection device 22Y, which are attached to face the bottom surface of the mouse as in the case of the fifth embodiment. Is formed in. Therefore, the target 41 can trace the graphic data via the mouse pad 10, and the graphic data can be accurately input. The other configuration of the mouse 20 of this example is the same as that described in the fifth embodiment, and therefore the same numbers are given and the description thereof is omitted.

As in the mouse of this example, the mouse 20
A part of the housing 28 is transparent and the target 4 is placed there.
In addition to the one in which 1 is formed, for example, a housing 2
Of course, all 8 may be transparent mice 20. Further, the target 41 is not limited to the cross shape, as in the fifth embodiment.

[Seventh Embodiment] FIGS. 27 to 29 show an outline of a mouse 20 according to a seventh embodiment. Like the fifth and sixth embodiments, the mouse 20 of the present embodiment is also suitable when used in combination with the translucent mouse pad 10 described above. The shape of the housing 28 of the mouse 20 is a pen shape, and the mouse 20 can be operated as if holding a pen. That is, in the mouse 20 of this example, the X coordinate detecting device 22X and the Y coordinate detecting device 22Y are provided on the bottom surface 28a of the mouse 20.
It suffices that the window 43 for projecting infrared rays and for guiding the reflected infrared rays be formed. For this reason,
The installation positions of the detection devices 22X and Y can be freely selected as long as an optical system connecting the window 43 and the detection devices 22X and Y can be formed. Therefore, the shape of the mouse 20 is arbitrary, and a pen-shaped mouse like this example can be manufactured.

When the pen-shaped housing 28 is used as in the mouse 20 of this example, the area of the mouse tip is small, so that the position pointed by the mouse 20 can be easily grasped, and the area for covering the figure can be reduced. Since it is small, it is suitable for inputting graphic data. In particular, in this example,
On the transparent mouse pad 10 described above, a target plate 40 having a cross-shaped target 41 is attached to the front of the housing 28 in order to facilitate the input of accurate graphic data.

Similar to the fifth embodiment, the shape of the target 41 is not limited to the cross shape.

Since the other construction of the mouse 20 is the same as that of the above-described fifth embodiment, the same reference numerals are given and the description thereof will be omitted.

[Embodiment 8] FIGS. 30 and 31 show an outline of a mouse 20 according to an embodiment 8. The mouse 20 of this example is also suitable for use in combination with the translucent mouse pad 10 described above, as in the above-described example. In particular, in addition to the X coordinate detecting device 22X and the Y coordinate detecting device 22Y, a visible light laser or a light beam having a small diameter is projected on the coordinates detected by these coordinate detecting devices on the bottom surface 28a of the mouse 20 of this example. A possible projection device 44 is attached. The laser or light beam projected from the projection device 44 passes through the transparent mouse pad 10 and is projected onto the data to be input by the mouse 20, so that the data can be traced more accurately. ..

Further, by using such a projection device 44, it is possible to trace data accurately even when there is a distance between the mouse pad 10 and the input object. Further, a line pattern 12X that defines the X coordinate and a line pattern 1 that defines the Y coordinate.
A translucent mouse pad 10XY on which 2Y is formed,
It is also possible to vertically combine the translucent mouse pad 10Z in which the line pattern 12Z defining the Z coordinate is formed. Then, run the mouse 20XY and 20Z on the mouse pad 10XY and 10Z,
By aiming a point on the three-dimensional object 50 installed in the mouse pads 10XY, 10Z with the projection light 45 from the projection device 44, it is possible to input the three-dimensional data of this point into the computer. Furthermore, by tracing a three-dimensional curve or a three-dimensional surface with these mice 20XY and 20Z, the data of these curves and surfaces can be easily input.

It is possible to individually drive these mice 20XY and 20Z, and various control methods such as interlocking with a servomotor can be used. Further, as in this example, in addition to using a flat mouse pad, it is possible to use a transparent mouse pad having various shapes such as a spherical mouse pad and a cylindrical mouse pad depending on the application. Then, by using such a mouse pad, it becomes possible to input / output data such as designation of a position on a solid body, a moving direction, and a moving distance.
Of course, the line patterns used for these mouse pads are not limited to rectangular coordinates, and line patterns indicating coordinates such as polar coordinates can be formed.

In the above embodiment, 950n
Although the mouse and the mouse pad for detecting the coordinates by using the near infrared region of m are described, it is also possible to detect the coordinates by using the ultraviolet region such as nitrogen or argon laser, and the reflection of the ultraviolet region. Increase the rate,
It is possible to realize the translucent mouse pad as described above by reducing the reflectance in the visible light region.

Further, as shown in FIG. 32, it is possible to connect a conventional mouse pad 60 having a line pattern formed by vapor-depositing a metal film such as Al and the transparent mouse pad 10 according to the present invention. .. Since the metal film has a high reflectance in the infrared region, the coordinates can be detected using the mouse 20 used for the translucent mouse pad. Furthermore, as shown in FIG. 33, an infrared-transmissive protective film 62 that is non-translucent and has irregularities on the surface can be provided on the substrate surface of the translucent mouse pad 10 of this example.
In such a mouse pad, when the graphic data is input, the protective film 62 is removed and the mouse pad is used as a translucent mouse pad. When the graphic data is not input, the mouse pad is used.
By installing this protective film 62, it is possible to prevent diffuse reflection from the mouse pad as a non-translucent type.

Further, the mouse pad 10 used in the horizontally long display 63 as shown in FIG. 34 is shown in FIG.
When used in the vertically long display 64 as shown in FIG. 5, the mouse pad 10 is rotated 90 ° and the coordinate detected by the X coordinate detecting device for detecting the line pattern 12X in the mouse 20 can be used as the Y coordinate. A switching circuit that can switch the coordinates detected by the Y-coordinate detection device that detects the line pattern 12Y to the X-coordinates may be installed in the mouse 20 or in the computer. It is also possible to reverse the front surface and the back surface of the mouse pad 10 to form the line pattern 12Y on the front surface side and the line pattern 12X on the back surface side. In this case, the line pattern 12Y is detected by the X coordinate detecting device 22X of the mouse 20, and the line pattern 12X is detected by the Y coordinate detecting device 22Y.
It is not necessary to install a switching circuit for switching the coordinates because the detection is performed by Furthermore, it is also possible to trace the positions of the displays 63 and 64 via the translucent mouse pad 10.

Then, the graphic information output to the displays 63 and 64 can be corrected.

[0070]

As described above, the translucent mouse pad according to the present invention can detect the coordinates at which the mouse travels by using the visible light transmissive layer having a small reflectance in the visible light region. Therefore, it is possible to confirm the graphic data and the like through the translucent mouse pad, and the mouse can be driven along the graphic data. Therefore, it is possible to accurately input the graphic data.

A thin film layer having a high reflectance in the infrared region or the ultraviolet region can be used as the visible light transmitting layer, and a coordinate detecting device using an optical system with high precision in coordinate detection can be adopted for the mouse. it can. In the mouse pad of the present invention, the protective film is used to protect the line pattern indicating the coordinates from abrasion or the like. Further, these line patterns can be formed by a photolithography method, and a highly accurate line pattern can be created.

The mouse has a target or
By attaching a projection device such as a laser, it is possible to accurately trace graphic data and the like on this translucent mouse pad. As described above, by using the translucent mouse pad and the mouse according to the present invention, it is possible to accurately input atypical data such as graphic information, which was difficult to input manually in the past. Become.

[0073]

[Brief description of drawings]

FIG. 1 is a perspective view showing a part of a translucent mouse pad according to a first embodiment.

FIG. 2 is a cross-sectional view of the translucent mouse pad shown in FIG.

3 is a cross-sectional view of the line pattern 12X shown in FIG.

4 is a cross-sectional view of the line pattern 12Y shown in FIG.

FIG. 5 is a refractive index layer (glass,
_{ZrO 2, MgF 2, ZrO 2} , the reflectance in air) is a graph showing with respect to the wavelength.

FIG. 6 is a refractive index layer (glass,
_{ZrO 2, MgF 2, ZrO 2} , the reflectance in the adhesive), which is a graph showing with respect to the wavelength.

FIG. 7 is a refractive index layer (glass,
_{ZrO 2, MgF 2, ··· ZrO} 2, the reflectance in air) is a graph showing with respect to the wavelength.

FIG. 8: Refractive index layers (glass,
TiO _2, the reflectance in air) is a graph showing with respect to the wavelength.

FIG. 9 is a refractive index layer (glass,
MgF _2, TiO _2, the reflectance in air) is a graph showing with respect to the wavelength.

FIG. 10 is a graph showing the reflectance of a refractive index layer (glass, MgF ₂ , ZrO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 11 is a refractive index layer (glass, ZrO ₂ , MgF ₂ , ZrO ₂ , MgF ₂ , ZrO constituting a line pattern.
₍₂ , air) is a graph showing reflectance with respect to wavelength.

FIG. 12 is a graph showing the reflectance of a refractive index layer (glass, InO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 13 is a graph showing the reflectance of a refractive index layer (glass, MgF ₂ , InO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 14 is a graph showing the reflectance of a refractive index layer (glass, InO ₂ , MgF ₂ , InO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 15 is a cross-sectional view showing a configuration of a translucent mouse pad according to a third embodiment.

FIG. 16 is a graph showing the reflectance of a refractive index layer (acryl, SiO, MgF ₂ , ZrO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 17 is a graph showing the reflectance of the refractive index layer (acryl, SiO, ZrO ₂ , MgF ₂ , ZrO ₂ , air) forming the line pattern with respect to wavelength.

FIG. 18 is a cross-sectional view showing a configuration of a translucent mouse pad according to Example 4.

FIG. 19 is a graph showing the reflectance of a refractive index layer (polyester, MgF ₂ , ZrO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 20 is a graph showing the reflectance of a refractive index layer (polyester, SiO, MgF ₂ , ZrO ₂ , air) forming a line pattern with respect to wavelength.

FIG. 21 is a perspective view showing the outer shape of the mouse according to the fifth embodiment.

22 is an elevation view of the mouse shown in FIG. 21 as seen from the front. FIG.

23 is a side view showing a side surface of the mouse shown in FIG. 21. FIG.

FIG. 24 is a rear view showing the bottom surface of the mouse shown in FIG. 21.

FIG. 25 is a perspective view showing the outer shape of the mouse according to the sixth embodiment.

FIG. 26 is a plan view of the mouse shown in FIG. 25 as seen from above.

FIG. 27 is an elevation view of the mouse according to Example 7 as seen from the front.

28 is a side view showing a side surface of the mouse shown in FIG. 27. FIG.

29 is a rear view showing the bottom surface of the mouse shown in FIG. 27. FIG.

FIG. 30 is a perspective view showing the outer shape of the mouse according to the eighth embodiment.

FIG. 31 is an explanatory diagram showing that the coordinates are specified using the mouse shown in FIG. 30.

FIG. 32 is an explanatory diagram showing a combination of a conventional mouse pad and a translucent mouse pad.

FIG. 33 is a cross-sectional view showing a case where a non-translucent protective film is set on a translucent mouse.

FIG. 34 is an explanatory diagram showing a translucent mouse connected to a horizontally long display.

FIG. 35 is an explanatory diagram showing a translucent mouse connected to a horizontally long display.

FIG. 36 is a perspective view showing an outline of a conventional mouse pad for an optical mouse.

FIG. 37 is an explanatory diagram showing a structure of a conventional optical mouse.

[Explanation of symbols]

 1 ... Base 1a ... Front of substrate 1b ... Back of base 2 ... Protective film 3 ... Hard coat film 4 ... Holding film 5 ... Transparent adhesive 10 ... Mouse Pad 11 ・ ・ ・ Substrate 12X ・ ・ ・ Line pattern defining coordinates in the X direction 12Y ・ ・ ・ Line pattern defining coordinates in the Y direction 20 ・ ・ ・ Mouse 21 ・ ・ ・ Line reading device 22X ・ ・ ・ X coordinates Detection device 22Y ... Y coordinate detection device 23 ... Light source 24 ... Light receiving element 25 ... Optical system 26 ... Support member 27 ... Slider 28 ... Housing 28a ... Bottom surface 29・ ・ ・ Click switch 31 ・ ・ ・ Acrylic resin base 32 ・ ・ ・ Silicon oxide layer 40 ・ ・ ・ Target plate 41 ・ ・ ・ Target 42 ・ ・ ・ Target Window for getting 43 ・ ・ ・ Window for coordinate detecting device 44 ・ ・ ・ Projection device for aiming 45 ・ ・ ・ Laser light 49 ・ ・ ・ Code 50 ・ ・ ・ Three-dimensional data 60 ・ ・ ・ Conventional mouse pad 61・ ・ ・ Graphic data 62 ・ ・ ・ Non-translucent protective film 63 ・ ・ ・ Horizontal display 64 ・ ・ ・ Vertical display

Claims (15)

[Claims] 1. A light-transmitting substrate, and at least a line pattern group formed on the substrate and defining coordinates in at least one direction. The line patterns included in the line pattern group are in a visible light region. A translucent mouse pad, which is formed of a visible light transmitting layer having a low reflectance. 2. The translucent mouse pad according to claim 1, wherein the visible light transmitting layer is a visible light reflecting layer having a high reflectance in at least one of an infrared region and an ultraviolet region. 3. A transparent substrate and at least a line pattern group formed on the substrate and defining coordinates in at least two directions. The line patterns included in the line pattern group are in a visible light region. The visible light reflective layer has a small reflectance and has a large reflectance in at least one of an infrared region and an ultraviolet region, and the line pattern groups are formed at a constant distance in the thickness direction of the substrate. A translucent mouse pad that is characterized. 4. The method according to claim 2 or 3,
The visible light reflection layer forming at least one line pattern included in the line pattern group is ZrO ₂ ,
TiO ₂ , InO ₂ , CdS, CdSe, CeO ₂ , H
fO ₂ , In ₂ O ₃ , SnO ₂ , MgO, SiO, Ta
₂ O ₅ , Y ₂ O ₃ , ZnSe, ZnS and ZrTiO
_1. A translucent mouse pad, which is formed of a high refractive index layer containing at least one high refractive index material selected from the high refractive index material group consisting of ₄ . 5. The method according to claim 2, wherein
The visible light reflection layer forming at least one line pattern included in the line pattern group is ZrO ₂ ,
TiO ₂ , InO ₂ , CdS, CdSe, CeO ₂ , H
fO ₂ , In ₂ O ₃ , SnO ₂ , MgO, SiO, Ta
₂ O ₅ , Y ₂ O ₃ , ZnSe, ZnS and ZrTiO
A high-refractive index layer containing at least one high-refractive index material selected from the high-refractive index material group consisting of ₄ , and MgF ₂ ,
A low refractive index layer containing at least one low refractive index material selected from the low refractive index material group consisting of CaF ₂ , Na ₃ AlF ₆ and SiO ₂ is formed by a composite layer in which at least one layer is laminated. A translucent mouse pad that is characterized. 6. The method according to any one of claims 1 to 5,
A translucent mouse pad, wherein the substrate comprises a translucent base and a translucent protective film laminated on at least one surface of the base. 7. The substrate according to claim 6, wherein the substrate is a resin substrate formed of a translucent resin, and at least one of the line pattern groups is formed with a silicon oxide layer laminated on the surface of the substrate. A translucent mouse pad having two line patterns. 8. The method according to claim 6, wherein at least one line pattern of the line pattern group that defines the coordinates in at least one direction is formed on an adhesive surface of the protective film that adheres to the base body. A translucent mouse pad. 9. The method according to claim 6, wherein
The translucent mouse pad, wherein the protective film is attached to the base with a transparent adhesive. 10. The method of manufacturing a translucent mouse pad according to claim 1, further comprising a vapor deposition step of vapor depositing the visible reflection layer, and photolithography from the deposited visible reflection layer. And a step of forming the line pattern by an etching method. 11. A mouse having a position detecting means for detecting a position using at least one set of electromagnetic waves, wherein the position detecting means forms a focus capable of collecting electromagnetic waves in at least one of an infrared region and an ultraviolet region. A mouse comprising at least a means and an electromagnetic wave detection means capable of detecting an electromagnetic wave collected by the focus system. 12. The mouse according to claim 11, further comprising a position confirming unit near the position detecting unit for confirming a position detected by the position detecting unit. 13. The mouse according to claim 12, wherein the position confirming means is a transparent confirming means capable of seeing the vicinity of the position detected by the position detecting means. 14. The mouse according to claim 12, wherein the position confirmation means is a light emission confirmation means capable of projecting visible light at a position detected by the position detection means. 15. A coordinate reading device comprising at least the translucent mouse pad according to any one of claims 1 to 9 and the mouse according to any one of claims 11 to 14.