JP2001236172A - Portable information terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a portable information terminal device having an imaging function provided with an input device whose operability is satisfactory. SOLUTION: In this portable information terminal device, an optical member having an effect to expand a viewing angle is attached to a pickup lens for imaging, the optical member can input information by an information input device using light. The portable information terminal device includes the information input device using light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a portable information terminal device in which an optical member having an effect of widening the angle of view is mounted on an imaging lens for imaging, and information can be input by an information input device using light. The present invention relates to a portable information terminal device including an information input device using a personal computer.

[0002]

2. Description of the Related Art Heretofore, as a method of inputting characters to a portable information terminal such as a portable telephone, for example, Japanese Unexamined Patent Publication No.
There is known a method of inputting a mobile phone using two dials as disclosed in Japanese Patent No. 2708. FIG.
FIG. 4 shows a configuration diagram of the character information input device for a portable information terminal. In FIG. 14, reference numeral 30 denotes a mobile phone main body, reference numeral 31 denotes an image display unit, and reference numeral 32 denotes two rotary dials.

In the above conventional example, characters are freely selected and input by combining operations of two dials 32. For example, assuming a character string 33 of a virtual syllabary as shown in FIG. 15, the cursor can be freely controlled by rotating two dials 32 in the character string 33 to select a character. After an arbitrary point on the screen is selected, a method of determining the point is performed by an action of pressing the dial 32.

[0004]

In the conventional portable information terminal device shown in FIG. 14, the cursor in the screen displayed on the image display unit is changed to X, by rotating two dials.
To move the cursor in the diagonal direction in the display screen, for example, to move the cursor in the Y-axis direction, rotate the two dials simultaneously, or in the X-axis direction, the Y-axis direction, or the Y-axis direction, then the X-axis direction. In such a case, it is necessary to perform an operation of moving the cursor to a target point, and the control of the movement of the cursor becomes complicated, and the operability is uncomfortable.

[0005] In the future, portable information terminal devices, in particular, PDAs
(Personal Digital Assista
nce) and PHS (Personal Handy p)
image information is very important as one type of information handled by a phone system, a mobile phone, or the like. Not only the image information transmitted at that time is displayed, but also image capture for acquiring image information for transmission. Means are being equipped in the portable information terminals.

Accordingly, in a portable telephone or a portable information terminal device with an image pickup function, a cursor in a display screen is moved by image information obtained by an image pickup device, instead of character information input by a dial as shown in the conventional example. There is a demand to be able to do. However, in a conventional portable information terminal device, even if an attempt is made to input with an optical information input device such as a light pen, for example, the input is not possible at the imaging lens unit of the portable information terminal device due to the narrow angle of view of the imaging device or imaging lens. It was impossible. If the user dares to input, the light pen must be moved at a position distant from the portable information terminal device, and a stable input operation is difficult.

SUMMARY OF THE INVENTION The present invention has been made to solve the problems of the conventional character information input device.
Provided is a portable information terminal device which is equipped with an optical member having an effect of widening the angle of view on an imaging lens and is capable of inputting information with an information input device using light, and a portable information terminal device including an information input device using light. It is intended to be.

[0008]

According to a first aspect of the present invention, there is provided an image display section for displaying input image information, an image pickup lens for inputting image information, and an information input section using light by widening the angle of view of the image pickup lens. And an optical member for forming

According to a second aspect of the present invention, the optical member is provided on the subject side with respect to the imaging lens.

In a third aspect, the optical member has a diffusion layer for diffusing input light.

According to a fourth aspect of the present invention, the optical member has a filter layer that transmits the light by limiting the wavelength of the input light.

According to a fifth aspect of the present invention, there is provided an image display unit for displaying input image information, an image pickup lens for inputting image information, an optical member for expanding an angle of view of the image pickup lens to form an information input unit by light, An optical information input device for inputting information by light to the optical member.

In a sixth aspect, the optical information input device is a light pen.

According to a seventh aspect of the present invention, the light pen has a mechanism for turning on and off the light source by the pressure of the pen tip.

In an eighth aspect, the image display unit displays a trajectory of light input by the optical information input device.

According to a ninth aspect of the present invention, the image display section displays a character based on the positional information of the light input to the optical member, and further creates a text by selecting the displayed character by the selection means.

According to a tenth aspect, the image display unit displays a character based on position information of light input to the optical member,
Further, the character displayed by the selection means is selected.

According to an eleventh aspect of the present invention, the image display section displays a menu based on positional information of light input to the optical member, and further selects the displayed menu by selecting means.

In a twelfth aspect, the image display section scrolls the display screen in all directions according to the motion information of the light input to the optical member.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a sectional view showing Embodiment 1 of the present invention. Reference numeral 109 denotes an imaging device provided in the portable information terminal device, and 101 denotes an imaging device 109.
, An imaging lens 102 for the imaging device 109, a lens holder 103 for holding the imaging lens 102, a substrate 112 on which the imaging device 101 is mounted, and 104 an imaging device 109 The housing of the portable information terminal device, 105 is an optical member attached to the subject side of the imaging lens 102 to increase the angle of view, 108 is the first surface of the optical member 105, 111 is the second surface of the optical member 105, and 106 is optical A holding component for mounting the member 105 to the housing 104, a light pen 107, and an end surface 110 on the surface 108 of the holding component 106.

The imaging device 109 includes a lens holder 103
And is fixed to the housing 104 in a state where the position is defined.
When the optical member 105 and the holding component 106 are not attached to the housing 104, normal imaging can be performed using the imaging device 109.

The housing 104 has a positioning groove for mounting the optical member 105 held by the holding component 106, so that the positions of the optical member 105 and the imaging lens 102 in the X-axis, Y-axis, and Z-axis directions can be adjusted. Stipulated.

The optical member 105 has a concave second surface 111, which serves to widen the angle of view of the imaging lens 102. Therefore, the first surface 108 having a size that can be easily operated with the light pen 107 can be ensured even at a short distance from the imaging lens 102.

The first surface 108 is designed to secure the flatness as much as possible in consideration of the operation with the light pen 107. Further, in order to define the operation range with the light pen 107 within the imaging range, An end face 110 of the holding component 106 is provided.

In the state where the optical member 105 is attached, only the vicinity of the first surface 108 of the optical member 105 is focused, so that normal imaging cannot be performed. Therefore, after the optical member 105 is mounted, the mode is switched to the light spot detection mode using a light pen or the like. In the light spot detection mode, the optical member 1
The light spot of the light pen 107 projected onto the imaging device 101 through the imaging lens 05 and the imaging lens 102 is, for example, as shown in FIG.
By detecting the projections in the X-axis and Y-axis directions as shown in (1), the XY coordinate position in the imaging screen is obtained.

In this embodiment, when the horizontal angle of view of the imaging lens 102 of the imaging device 109 is, for example, about 55 degrees, the thickness b of the optical member 105 is about 3 mm, the operation range a of the light pen 107 is about 13 mm × 13 mm, and The distance c from the stop position of the imaging lens 102 to the optical member is preferably about 2 mm.

In this embodiment, the optical member having the concave surface on the second surface has been described as the optical member having the effect of widening the angle of view of the imaging lens 102. However, the optical member having another shape having the effect of widening the angle of view has been described. , For example, a Fresnel lens,
It goes without saying that a similar effect can be obtained.

Embodiment 2 In the second embodiment, a portable telephone is shown as an example of the portable information terminal device having the information input section described in the first embodiment.
FIG. 3 is an external view of the mobile phone described in this embodiment.
In FIG. 3, reference numeral 201 denotes a mobile phone main body, and reference numeral 202 denotes an axis rotating mechanism for making the optical member 105 held by the holding component 106 movable.

In the present embodiment, the optical member 105 held by the holding component 106 is set by the shaft rotation mechanism 202 from the side of the mobile phone to the front of the imaging device 109. With this structure, the optical member 105 is prevented from being lost and can be set with one touch.

In the present embodiment, the storage location of the optical member 105 is on the side of the mobile phone. However, as long as the location can be set in the imaging device 109, the same effect can be obtained, for example, on the top of the mobile phone. .

Embodiment 3 The third embodiment shows another mobile phone having the information input unit according to the first embodiment. FIG. 4 is an external view of the mobile phone described in this embodiment. In FIG. 4, reference numeral 201 denotes a mobile phone main body, and reference numeral 301 denotes a groove structure for sliding the optical member 105 held by the holding component 106.

In the present embodiment, the optical member 105 held by the holding component 106 is set in front of the imaging device 109 from the side of the front of the mobile phone by the groove structure 301. With this structure, the optical member 105 is prevented from being lost and can be set with one touch.

Embodiment 4 FIG. Embodiment 4 is different from Embodiment 1 in that the optical member 10
5 is provided with a diffusion sheet 401 mounted thereon.
FIG. 5 is a cross-sectional view of the information input unit according to the present embodiment.

In FIG. 5, reference numeral 401 denotes a diffusion sheet mounted on the first surface 108 of the optical member 105. Since the diffusion sheet 401 diffuses light from the light pen 107 in all directions, the light from the light pen 107 can be input to the imaging lens 102 regardless of the directivity of the light pen 107. Thereby, the light pen 10
The input can be performed even when 7 is handled like a normal pen, and the pen input operation can be performed without discomfort.

In the present embodiment, the diffusion sheet 401 is used for diffusing, but the first surface 108 of the optical member 105 is used.
It is needless to say that the same effect can be obtained even if the processing for finishing the surface is made a diffusion surface.

Embodiment 5 The fifth embodiment is different from the first embodiment in that the optical member 10
5, a filter 501 having a transmission characteristic for limiting the wavelength of incident light is mounted. FIG. 6 is a cross-sectional view of the information input unit according to the present embodiment.

In FIG. 6, reference numeral 501 denotes, for example, 50 in FIG.
This is a filter having transmission characteristics as shown in FIG. At this time, if the light emitting wavelength of the light emitting diode mounted on the light pen 107 is as shown by 503 in FIG. 7, it is possible to cut a part of the disturbance light having a wavelength unnecessary for pen input. The operability of input with the pen 107 is improved. When the imaging device 101 is a color device, the imaging device 109 is equipped with an IR cut filter to cut off near-infrared light. The transmission characteristic of the IR cut filter is often like 504 in FIG. In that case, the transmission characteristic 5 of the attached filter 501
02 and the emission spectrum 50 of the light emitting diode
The transmission characteristic of the band-pass filter is such that only the portion 3 is transmitted, and the transmission characteristics are hardly affected by disturbance light.

In this embodiment, the filter 501 having the transmission characteristic for limiting the wavelength of the incident light is mounted on the upper surface of the optical member 105.
Needless to say, the same effect can be obtained even if the device is installed in any part between the two. Further, the same effect can be obtained even if the optical member 105 itself is made of a material having the transmission characteristic of 502.

Embodiment 6 FIG. The sixth embodiment is directed to a light pen 1 used for the information input unit in the first embodiment.
At 07, the light source is turned on / off according to the pressure of the pen tip. FIG. 8 shows the operation of the light pen used for the information input unit according to the present embodiment.

In FIG. 8, reference numeral 601 denotes a light pen 107.
This is a tact switch with a short stroke, which is built into the pen tip. With the tact switch 601, when input is made with the light pen 107,
The light source turns on. The light source is turned off by moving the pen away from the first surface 108 of the optical member 105 at the end point of the input. With this mechanism, it is not necessary to perform the operation of confirming the pen input by the operation of pressing another button or switch, and the operability of the pen input is improved.

Embodiment 7 FIG. Embodiment 7 shows a mobile phone having the information input unit in Embodiment 1 described above. By inputting the light into the optical member 105 with the light pen 107, the locus of the light spot of the light pen is detected. A line drawing according to the locus is displayed on the image display unit. FIG. 9 illustrates an operation example of the mobile phone of this embodiment.

In FIG. 9, reference numeral 701 denotes an image display unit of the mobile phone, and a line drawing is displayed on the image display unit 701 in accordance with a locus input by the light pen 107. By this operation, it is possible to input, for example, handwritten characters or line drawings other than characters.

Embodiment 8 FIG. Embodiment 8 shows a mobile phone having the information input unit according to Embodiment 1 described above, and the position of the light spot of light pen 107 is detected by inputting light to optical member 105 with light pen 107. , According to the position, a point in the image display unit 701 is selected. FIG. 10 illustrates an operation example of the mobile phone of this embodiment.

In FIG. 10, reference numeral 701 denotes an image display unit of the portable telephone, which selects a point 801 in the image display unit 701 according to the position of the light spot input by the light pen 107. By this operation, for example, an arbitrary hiragana can be selected from a part of the virtual syllabary displayed in the image display unit 701, and a sentence can be freely created. Further, instead of the Japanese syllabary table, a table in which various patterns, designs, cartoon characters and the like are arranged may be prepared and selected as appropriate.

Embodiment 9 FIG. The ninth embodiment is a mobile phone having the information input unit according to the first embodiment, and detects the position of the light spot of the light pen 107 by inputting the light to the optical member 105 with the light pen 107. , The pointing device 901 in the image display unit 701 is controlled. FIG. 11 illustrates an operation example of the mobile phone of this embodiment.

In FIG. 11, reference numeral 701 denotes an image display unit of the portable telephone, and a pointing device 901 in the image display unit 701 moves in accordance with the position of a light spot input by the light pen 107. By this operation, the image display unit 7
Various menus can be selected within 01 to perform functions such as e-mail transmission.

Embodiment 10 FIG. The tenth embodiment is a mobile phone having the information input unit according to the first embodiment, and detects the movement of the light spot of the light pen by inputting the light to the optical member 105 with the light pen 107. The image display unit 701 can be scrolled according to the direction and size. FIG. 12 illustrates an operation example of the mobile phone of this embodiment.

Referring to FIG. 12, reference numeral 701 denotes an image display unit of the portable telephone. The light pen 107 inputs motion vectors 902 and 903. By this operation, for example, a part of the virtual screen as shown in FIG.
01 is displayed, the window 904 of the image display unit 701 moves within the screen according to the motion vector of the light pen 107 of 902 and 903. At this time, the window 904 moves according to the directions and sizes of the motion vectors 902 and 903. In this way, it is possible to configure so that a large virtual screen can be used even with a narrow display screen.

The portable information terminal device of the present invention described above can be applied not only to a portable telephone equipped with an imaging device but also to a portable information terminal device such as a PDA equipped with an imaging device.

[0050]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect of the present invention, an image display unit, an image pickup lens, and an optical member are provided, whereby an information input unit operable by an optical information input device or the like at a position close to the image pickup lens can be formed. Yes, input operability is improved.

In the second aspect, the optical member is provided on the subject side with respect to the imaging lens, so that input operability is improved.

In the third aspect, since the optical member has the diffusion layer for diffusing the input light, it is possible to eliminate the influence of directivity when inputting with a light pen or the like.

In the fourth aspect, since the optical member has the filter layer that transmits the light by limiting the wavelength of the input light, the optical member is less affected by disturbance light at the time of input.

According to a fifth aspect, an image display unit, an imaging lens, an optical member, and an optical information input device are provided.
This makes it possible to form an information input unit that can be operated by the optical information input device at a position near the imaging lens, thereby improving input operability.

In the sixth aspect, the optical information input device is a light pen, so that input operability is improved.

In the seventh aspect, the light pen has a mechanism for turning on and off the light source by the pressure of the pen tip, so that the input operability is improved.

According to the eighth aspect, the image display section can input handwritten characters and line drawings other than characters in order to display the trajectory of light input by the optical information input device.

According to the ninth aspect, the image display unit displays characters based on the position information of the light input to the optical member, and furthermore, creates a text by selecting the displayed characters by the selection means. You can enter sentences.

[0060] In the tenth aspect, the image display section displays the character based on the positional information of the light input to the optical member, and further easily inputs various characters to select the displayed character by the selection means. be able to.

In the eleventh aspect, the image display unit displays a menu based on positional information of light input to the optical member,
Further, since the menu displayed by the selection means is selected, various menus can be easily input.

In the twelfth aspect, the image display section scrolls the display screen in all directions based on the light motion information input to the optical member, so that a large virtual screen can be used even on a narrow display screen. Operability is improved.

[Brief description of the drawings]

FIG. 1 is a sectional view of an information input unit according to Embodiment 1 of the present invention.

FIG. 2 is a diagram illustrating light spot detection in the information input unit according to the first embodiment of the present invention.

FIG. 3 is an external view of the mobile phone according to the second embodiment of the present invention.

FIG. 4 is an external view of a mobile phone according to Embodiment 3 of the present invention.

FIG. 5 is a cross-sectional view of an information input unit according to Embodiment 4 of the present invention.

FIG. 6 is a sectional view of an information input unit according to a fifth embodiment of the present invention.

FIG. 7 is a graph showing transmission characteristics of input light according to the fifth embodiment of the present invention.

FIG. 8 is a diagram illustrating an operation of the light pen according to the sixth embodiment of the present invention.

FIG. 9 is a diagram illustrating a mobile phone according to a seventh embodiment of the present invention.

FIG. 10 is a diagram illustrating a mobile phone according to an eighth embodiment of the present invention.

FIG. 11 is a diagram illustrating a mobile phone according to a ninth embodiment of the present invention.

FIG. 12 is a diagram illustrating an operation of the mobile phone according to the tenth embodiment of the present invention.

FIG. 13 is an explanatory diagram of window movement according to the eleventh embodiment of the present invention.

FIG. 14 is an external view showing a conventional portable information terminal device.

FIG. 15 is a virtual Japanese syllabary used in a conventional portable information terminal device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 101 Image sensor incorporated in imaging device 109 102 Imaging lens used in imaging device 109 103 Lens holder for holding imaging lens 102 104 Housing of portable information terminal device 105 Optical member 106 Holding component of optical member 105 107 Light pen 108 First surface of optical member 105 109 Imaging device mounted on portable information terminal device 110 Holding component 1 on first surface 108 of optical member 105
06 End face 111 Second surface of optical member 105 112 Substrate on which imaging element 101 is mounted 113 Imaging screen 114 Light spot of light pen 107 projected 115 Projection data in X-axis direction of imaging screen 116 Y-axis direction of imaging screen Projection data 201 Mobile phone main body 202 Shaft rotation mechanism 301 Sliding groove structure 401 Diffusion sheet 501 Filter 502 Filter 501 transmission characteristics 503 Emission spectrum of light emitting diode mounted on light pen 107 504 IR cut filter transmission characteristics 601 Tact switch 701 Image display unit of mobile phone 801 Point in image display unit 701 Pointing device 902 in image display unit 902 Motion vector 1 of light pen 107 903 Motion vector 2 904 of light pen 107 Virtual Window in the screen.

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) H04N 5/225 H04N 7/14 9A001 7/14 G06F 1/00 312G 312U (72) Inventor Masanobu Takahashi Tokyo 2-3-2 Marunouchi, Chiyoda-ku, Mitsui Electric Co., Ltd. (72) Inventor Kazuo Hisama 2-3-2, Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsui Electric Co., Ltd. 2H087 KA03 LA30 PA01 PA17 PB01 QA01 QA06 QA18 QA38 5B068 AA11 BB18 BC03 BD02 BD09 BD13 BD22 CD01 5B087 AA09 AE09 BC03 BC32 5C022 AA12 AB68 AC00 AC01 AC41 AC77 AC78 5C064 AA01 AB03 AC02 AC08 AC13 AD02 AD08 AD14 9A001 H33KK

Claims (12)

[Claims] 1. An image display unit for displaying input image information, an image pickup lens for inputting the image information, and an optical member for expanding an angle of view of the image pickup lens to form an information input unit by light. A portable information terminal device characterized by the above-mentioned. 2. The portable information terminal device according to claim 1, wherein the optical member is provided on a subject side with respect to the imaging lens. 3. The portable information terminal device according to claim 1, wherein the optical member has a diffusion layer for diffusing input light. 4. The portable information terminal device according to claim 1, wherein the optical member has a filter layer that transmits the light by limiting the wavelength of the input light. 5. An image display section for displaying input image information, an image pickup lens for inputting the image information, an optical member for forming an information input section by light by widening an angle of view of the image pickup lens, and the optical element. A portable information terminal device comprising: a light information input device for inputting light information to a member. 6. The portable information terminal device according to claim 5, wherein the optical information input device is a light pen. 7. The portable information terminal device according to claim 6, wherein the light pen has a mechanism for turning on and off a light source by pressure of a pen tip. 8. The portable information terminal device according to claim 5, wherein the image display unit displays a trajectory of light input by the optical information input device. 9. The image display unit displays characters according to positional information of light input to the optical member, and further creates a text by selecting the displayed characters by a selection unit. The portable information terminal device according to claim 1. 10. The image display unit according to claim 1, wherein the character is displayed based on positional information of the light input to the optical member, and the displayed character is selected by a selection unit. The portable information terminal device according to claim 8. 11. The image display unit according to claim 1, wherein a menu is displayed based on positional information of the light input to the optical member, and the displayed menu is selected by a selection unit. Item 9. The portable information terminal device according to any one of Items 8. 12. The image display unit according to claim 1, wherein the image display unit scrolls a display screen in any direction based on motion information of light input to the optical member. The portable information terminal device described in the above.