JP2006338146A - Information presentation system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information presentation system presenting information of an object such as real object information or circumferential environmental information through tactile sense. <P>SOLUTION: This information presentation system comprises an information presentation device 200' including a projecting means projecting a concentric circle stripe pattern light while instructing an object; imaging means 120 and 130 detecting the stripe pattern light projected from the information presentation device; an arithmetic processing means 140 calculating an instruction position of the projecting means based on information obtained from the imaging means; an information storage means 142 storing information of the object instructed by the projection means; and an information transmitting means 141 transmitting the stored information of the object corresponding to the calculated instruction position. The information presentation device 200' receives the information of the object transmitted from the information transmitting means, and presents the received information of the object through tactile sense. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an information presentation system, and more particularly to an information presentation system that can present information about an object such as actual object information and surrounding environment information via a tactile sense.

  2. Description of the Related Art Conventionally, as a technique for experiencing a tactile sensation of an actual object, for example, techniques disclosed in Patent Document 1 and Patent Document 2 below are known. These technologies are so-called electronic museums, and by touching an object displayed on a computer screen with the mouse cursor, the tactile sensation such as the material texture and texture of the object can be obtained via the mouse. Is a simulated experience. That is, the mouse has a movable part that moves according to the unevenness of the object, while tactile information is stored in advance in a computer.

In addition, according to the following Patent Document 3 and Patent Document 4, a guide system for informing a visually handicapped person in advance of the surrounding situation by voice or vibration is already known. According to this guide system, visually handicapped persons can receive information according to the surrounding situation through voice guides such as “Immediately crossing” or “Ticket is right”, or vibration by vibrating members. , You can feel as vibration. Thereby, it becomes possible for a visually handicapped person to safely arrive at a destination, for example.
JP 2001-100880 A JP 2003-99177 A JP-A-5-220007 JP-A-7-292627

  However, the techniques disclosed in Patent Document 1 and Patent Document 2 described above allow the user to virtually experience the tactile sensation while virtually confirming the target object indirectly on the computer screen. Therefore, the reality was poor.

  For example, when referring to visual information, you go to a place where the target object actually exists, for example, a museum, where you can directly display exhibits such as dinosaurs and stuffed animals, sculptures and plaster moldings, etc. There is nothing better than the feeling you get when you witness. That is, humans can recognize objects realistically from the shadows, textures, and depths seen in the exhibits. Furthermore, if the user can touch the exhibit at the same time as viewing the realistic exhibit, the human can deepen their understanding of the exhibit.

  However, it is common that museum exhibits cannot be touched, and tactile information on the exhibits cannot be obtained directly from the exhibits. On the other hand, with the technology disclosed in the prior art described above, tactile information can be acquired, but tactile information cannot be acquired at the same time as viewing an actual object. There was a problem that the degree of understanding of was limited.

  In addition, the techniques disclosed in Patent Document 3 and Patent Document 4 described above perform guidance by transmitting information by voice or vibration. However, in such a guide system, for example, at intersections with heavy traffic or heavy traffic, voice information may not be transmitted due to ambient noise, and visually impaired persons may not be able to judge the situation, and there may be danger. It was pointed out that the amount of information alone was not sufficient and the situation could not be judged accurately. In other words, the guide system in the prior art has a problem that it is impossible to safely guide a visually impaired person to the destination. Therefore, a system that allows a visually impaired person to know the surrounding situation in advance is required. It was.

  In view of the above-described problems in the prior art, the present invention provides an information presentation system capable of presenting object information such as actual object information and surrounding environment information via a tactile sense. Objective.

  More specifically, an object of the present invention is to provide an information presentation system that allows a user to experience the tactile sensation of an object that is difficult to touch while witnessing the object in a museum or the like. .

  In addition, the present invention can provide information presentation that enables a visually handicapped person to know in advance what the surrounding objects are, for example, and thereby guide the visually handicapped person safely to the destination. The purpose is to provide a system.

  The above object is based on projection means for instructing an object to project concentric striped light, imaging means for detecting striped light emitted from the projection means, and information obtained from the imaging means. Calculation processing means for calculating the indicated position of the projection means, information storage means for storing information on the object indicated by the projection means, and the stored object corresponding to the calculated indicated position Information transmitting means for transmitting object information, information receiving means for receiving object information transmitted from the information transmitting means, and tactile information presenting means for presenting the received object information via tactile sensation This is achieved by an information presentation system comprising:

  Here, the arithmetic processing means can set the center position of the striped pattern light calculated from the detected striped pattern light as an instruction position of the projection means. The projection unit, the information receiving unit, and the tactile information presentation unit can be housed in the same casing. Furthermore, the information on the object may include surface information on the object. The tactile information presentation unit may include a vibration unit for presenting surface information of the object. The projection unit may include an optical system for emitting a focused beam. The information on the target object may include a name of the target object. The tactile information presenting means may include a Braille display means for presenting the name of the object, and the Braille display means may include a plurality of protrusions movable up and down.

  Further, the information presentation device according to the present invention projects a concentric striped pattern light indicating an object, calculates the indicated position based on information obtained by detecting the striped pattern light, Information used for an information presentation system that stores in advance information on an object corresponding to an indicated position and presents the information on the object based on the stored information on the object corresponding to the calculated indicated position A projecting unit that projects the concentric striped light by instructing the object, an information receiving unit that receives information on the stored object corresponding to the designated position of the projecting unit, and Tactile information presenting means for presenting the received information of the object through the tactile sense. Here, the tactile information presentation unit may include a vibration unit for presenting surface information of the object. The projection unit may include an optical system for emitting a condensed beam. Further, the tactile information presenting means can include a Braille display means for presenting the name of the object, and the Braille display means can include a plurality of protrusions that are movable up and down.

  ADVANTAGE OF THE INVENTION According to this invention, the information presentation system which can show information of objects, such as real object information and surrounding environment information, via a tactile sense can be obtained. This makes it possible, for example, to see an exhibit that cannot be touched with the eye while touching it at the same time, so that the understanding of the exhibit can be further deepened. It is possible to guide safely to the destination.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
1 and 2 are diagrams showing a configuration example of a position measurement system used in an information presentation system according to the present invention.

<Position measurement system using concentric striped light>
This position measurement system can be configured using, for example, the technique described in Japanese Patent Application Laid-Open No. 2004-28977. In this position measurement system, light (striped pattern light) 115 that generates a concentric striped pattern due to interference is emitted from the projection unit 100. The internal structure of the projection unit 100 will be described later in detail with reference to FIG. In the information presentation system according to the present invention, the projection unit 100 irradiates the object 200 to be instructed with the concentric striped light 115 generated by the interference. On the other hand, a pair of imaging means 120, 130 (for example, a digital camera equipped with a normal CCD, etc.) disposed at positions separated from each other in the predetermined space including the object 200 (in this example, both upper ends of the object 200) ), A part of the irradiated concentric striped light 115 is imaged. The concentric striped light may be created by means different from that in this example.

  Next, an image of a part (arc) of the concentric striped light 115 acquired by the imaging means 120 and 130 is configured by a computer (hereinafter simply referred to as “PC”) shown in FIG. Transfer to the arithmetic processing means 140. The arithmetic processing means (PC) 140 executes the arithmetic processing described below using, for example, computer software, and specifies the position indicated by the projection means 100. In this example, the PC 140 is connected with information transmitting means 141 that transmits information wirelessly, but it is also possible to transmit information by wire. The information transmission unit 141 generates information on the target object such as actual object information or surrounding environment information based on the specification of the designated position by the projection unit 100, and at a predetermined timing, the following FIG. And it transmits to the information receiving means shown in FIG.

  The PC 140 is connected or built in advance with information storage means 142 for storing object information such as actual object information and surrounding environment information. That is, the information storage unit 142 stores, for example, object surface unevenness information and environmental information such as intersections, traffic lights, and pedestrian crossings that exist around the object as object information.

  The PC 140 calculates the center of the concentric striped pattern light 115 from the arc acquired by the imaging means 120 and 130 by the mounted arithmetic processing means as described later. Then, the calculated center position of the concentric striped pattern light 115 is set as the indicated position of the projection unit 100 in the position measurement system.

  As a method for obtaining the center position from the arcs acquired by the imaging means 120 and 130, for example, as shown in FIG. 3, two arbitrary points on the arc 30 are extracted, and a straight line connecting the two points is drawn. Draw a normal passing through the midpoint of the line. This is performed at two places to obtain two normal lines 31 and 32. Next, a point where the two normal lines 31 and 32 intersect is obtained, and this is set as the center 33 of the arc. By performing such processing on a plurality of images, the position detection accuracy can be increased. Then, the center position of the arc is set as the instruction position of the projection unit 100.

<Light projection means for generating concentric striped light by interference>
Next, FIG. 4 shows a detailed structure of the projection unit 100 that is housed and formed in the same housing. In this example, in addition to the projection unit 100, the information reception unit 101 and the tactile information presentation unit 102 are included in the same casing, and these constitute the information presentation device 200.

  As shown in the top cross-sectional view of FIG. 4A, the information presentation apparatus 200 displays information transmitted from the information transmission unit 141 shown in FIG. 2 in, for example, a bar or a cylindrical housing. For example, information receiving means 101 for receiving wirelessly, tactile information presentation means 102 including, for example, an electromagnetic plunger or a magnetostrictive element, a light emitting source 103 made of a semiconductor laser, and laser light emitted from the light emitting source are parallel light. And a projection unit 100 including a special interference lens 105 for causing the laser beam to interfere. The interference lens 105 emits laser light at a wide angle as striped light 115 that generates concentric interference fringes, which will be described later. Moreover, the code | symbol 107 in a figure shows the battery for supplying required electric power with respect to said component. These are accommodated in the same housing as shown in the figure.

  In addition, as shown in the side view of FIG. 4B, the information presentation apparatus 200 includes a vibration unit 108 that constitutes a part of the tactile information presentation unit 102 on the upper surface of a substantially central portion of the housing. It is attached. In other words, the user who carries the information presentation device 200 in his / her hand is provided with information from the vibration unit 108 via the sense of touch. The information receiving means 101 receives the information transmitted by the information transmitting means 141 in FIG. 2 and sends the received information to the tactile information presenting means 102. The tactile information presenting means 102 presents (represents) the information by the vibration or vertical movement of the vibration unit 108 based on the received information. The vibration unit 108 constituting the tactile information means has a structure that can vibrate up and down, and the magnitude (amplitude) and frequency of the vibration depend on the object information sent from the information transmission means 131. Determined.

  Further, FIG. 5 shows a side sectional view of a so-called laser pointer mounting type information presentation apparatus 200 ′ which is another embodiment of the information presentation apparatus. As is apparent from the figure, the information presentation apparatus 200 ′ emits a focused beam 116 so that the user can easily confirm the indicated position with the eyes in addition to the configuration shown in FIG. For this reason, an optical system is provided. That is, the projection unit 100 of the present embodiment includes a light emitting source 103 made of a semiconductor laser, a collimating lens 104 for making the laser light emitted from the light emitting source parallel light, and a special interference lens 105 for making the laser light interfere. In addition, a transmission / reflection mirror 109, a reflection mirror 110, and a condenser lens 111 are included. As a result, the projection unit 100 emits the striped pattern light 115 and separates the output light from the light source 103 at a predetermined ratio by the transmission / reflection mirror 109 and reflects it by the reflection mirror 110 to change the direction. Further, this is emitted as a condensed beam 116 through a condenser lens 111. For example, if the output light of the light emitting source 103 made of a semiconductor laser is red, the striped pattern light 115 is emitted with a large spread, so the indicated position is not displayed as a red dot. On the other hand, since the condensed beam 116 collects red light, the indicated position is displayed as a red dot. As a result, the indicated position can be easily visually confirmed.

Here, the interference lens 105 used for the projection unit 100 will be described.
FIGS. 6A and 6B are diagrams showing an embodiment of an optical lens system in which light passing through the upper half of the lens and light passing through the lower half form concentric interference fringes.
In this embodiment, as shown in FIG. 6A, an optical axis target ring-shaped lens 1-3 having a depression in the optical axis is used. In FIG. 6B, a lens 1-3 shows a cross-sectional view of the lens, and a lens 1-3u shows a front view of the lens viewed from the light source direction. Here, the lens outer diameter was 3 mm. The entrance surface of the lens on the plane on the optical axis is an aspherical surface of x = 0.5 * (y−1.5) ^1.5 (unit is mm). Here, x is the optical axis and the light traveling direction is positive, and y is a radial axis perpendicular to the optical axis. The light exit surface of the lens 1-3 was a flat surface. The refractive index of the lens material was 1.51.

  Light emitted from the laser light source 2 enters the optical lens 1-3 via the collimator lens 1c. The light that has passed through the upper side of the optical axis is irradiated onto the object 10 via the ray trajectory 2-3-1. Similarly, the light that has passed through the lower side of the optical axis is irradiated onto the object 10 via the ray trajectory 2-3-2. The light that reaches the same point (interference point) 5 on the object 10 interferes because it is a laser beam emitted from the same light source. In this way, the laser light emitted from one light source is projected onto the object so that it is virtually emitted from the two light sources 2-1 and 2-2 on the plane on the optical axis. . In this embodiment, the light from the point light source is converted into parallel light using a collimator lens and is incident on the lens. However, the parallel light can be considered as an infinite light source. The lens is used as two light sources virtually.

  It was examined by simulation how interference fringes are formed when light emitted from the semiconductor laser 2 is incident on the lens 1-3 as parallel light by the collimator lens 1c. Since the light of the semiconductor laser generally has a Gaussian distribution intensity distribution, the intensity of the light passing through the outer diameter part of the lens outer diameter of 3 mm is 3.4 of the intensity of the light passing through the lens center part (optical axis). The simulation was carried out as decreasing to%. As a result, it was found that concentric interference fringes having a diameter of about 4 m were formed on the object 4 m ahead. A part of the interference pattern is shown in FIG. FIG. 7 shows concentric interference fringes at positions 1000 mm to 1010 mm away from the center of the circle. In this graph, it can be confirmed that concentric circles are formed at exactly 1.0 mm pitch.

  Subsequently, an embodiment of the information presentation system according to the present invention using the position measurement system including the projection unit 100 whose detailed structure has been described above will be described below.

<Information presentation system at museums>
For example, referring to FIG. 8, an operation for obtaining tactile information such as unevenness and tactile sensation of an exhibit that cannot be directly touched with a hand while viewing an exhibit such as a dinosaur at the site in a museum will be described. To do. As shown in the figure, in the space (exhibition room) in which the exhibit 80 is placed, the above-described imaging means 120 and 130 are provided in order to image a part of the irradiated concentric striped light. ing. In this example, the imaging means 120 and 130 are respectively arranged at both corners of the ceiling in the exhibition room. In addition, the information storage unit 142 of the PC 140 (not shown) includes actual object information related to the exhibit, that is, the object information including the numerical value (amplitude) indicating the degree of unevenness and touch feeling of the exhibit, for example. Information is stored in advance. For example, as shown in FIG. 8B, there is a “+1” protrusion at position P1, “± 0” at position P2, no protrusion or depression, and “−2” at position P3. In addition, information on the object is stored corresponding to each position in the space (exhibition room).

  Next, the operation will be described. First, in the exhibition room, the user 117 designates a place where he / she wants to know tactile information in the exhibition by using the information presentation device 200 ′ held and carried by the hand. For example, as indicated by an arrow in the drawing, the surface of the exhibit 80 is traced (scanned) in a non-contact manner while the information presentation device 200 ′ is moved. Thereby, the centers of the striped light beams emitted from the information presentation device 200 ′ and formed concentrically by interference are sequentially detected by the imaging units 120 and 130, and the detection signals are respectively transferred to the PC 140. The PC 140 calculates the indicated position 118 scanned by the above-described arithmetic processing as position information. As a result, object information (see FIG. 8B) corresponding to the traced (scanned) position information is transmitted from the information transmission unit 141 of the PC 140.

  The signal transmitted from the information transmitting unit 141 is received by the information receiving unit 101 built in the information presenting apparatus 200 ′ carried by the user 117, and further transmitted to the tactile information presenting unit 102 so that the tactile information presenting unit 102. The vibration part 108 moves up and down, for example. That is, the information transmission unit 141 is supplied with an electric signal having an amplitude corresponding to the unevenness of the actual object at a frequency (period) that matches the scanning speed of the information presentation device 200 ′ to drive the vibration unit 108. Therefore, the user 117 holding the information presentation device 200 ′ in his / her hand can experience the unevenness of the exhibit in a pseudo manner by the tactile sensation such as a finger touching the vibration unit 108.

  In the example shown in FIG. 8, the information presentation apparatus carried by the user is an example using the information presentation apparatus 200 'of the type shown in FIG. According to this laser pointer-mounted information presentation device 200 ′, the user can easily confirm the indicated position by the condensed beam emitted simultaneously with the concentric interference fringe light emitted at a wide angle. . However, it goes without saying that the information presentation apparatus 200 shown in FIG. 4 can be used instead.

<Information presentation system for visually handicapped persons (braille protrusions mounted type)>
Next, as another example of the information presenting system according to the present invention using the position measurement system described above, a visually handicapped person in advance obtains information on the surrounding environment such as information on an object such as a pedestrian crossing, a traffic light, or an intersection in advance. An information presentation system that can be surely known and thereby allow a visually impaired person to be safely guided to a destination will be described below with reference to FIGS.

  First, FIG. 9 shows the internal structure of an information presentation apparatus used in an information presentation system for visually impaired persons. As shown in FIG. 9A, the information presenting apparatus 200 ″ has the same basic configuration as the information presenting apparatus 200 shown in FIG. 4, but its tactile information presenting means. 102 includes braille display means 112 for displaying braille by protrusions instead of the vibrating part 108. The protrusions 113 of the braille display means 112 each include, for example, an electromagnetic plunger or a magnetostrictive element. The braille display means 112 of this example is configured to sequentially form the braille one by one, but a plurality of the braille display means 112 are arranged side by side vertically and / or horizontally. Or you may comprise so that several braille may be formed at once.

  FIG. 9B shows an enlarged top view of the Braille display means 112 which is the tactile information presentation means for the visually impaired, and FIG. 9C shows an enlarged side view thereof. That is, the braille display means 112 includes six protrusions 113 that can move up and down in three rows and two rows, and displays one braille. These six protrusions 113 move up and down in accordance with the information transmitted to the tactile information presentation unit 102 via the information receiving unit 101 to display braille, and sequentially follow the braille at regular intervals. Is displayed.

  Further, in this information presentation system for the visually impaired, the imaging means 120 and 130 for detecting the concentric striped light emitted from the information presentation device 200 ″ are arranged in advance in a public place, for example. The PC that performs the arithmetic processing is connected to the image capturing means 120 and 130, for example, via a communication line, or includes a processing PC (for example, a center server) in the center, and the image capturing means 120 and 130. It is also possible to process the image transmitted from the terminal and transmit the object information via the PC of the terminal.

  Next, with respect to a visually impaired person carrying the information presenting apparatus 200 ″, a method for providing surrounding environmental information as information on surrounding objects before reaching the spot, that is, in advance, is described with reference to FIG. To explain.

  As shown in FIG. 10, the visually handicapped person 119 carries the information presentation device 200 ″ for the visually handicapped person in his hand when going out, for example. In this example, the visually handicapped person 119 is at the intersection as an example. In other words, the visually impaired person 119 indicates the direction he / she wants to go using the information presentation device 200 ″. Thereby, the concentric striped light emitted from the information presentation device 200 ″ is detected by the imaging means 120 and 130 (in this example, attached to the traffic signal device), and the detection signal is not shown here. On the other hand, on the PC 140 side, the indicated position indicated by the information presenting apparatus 200 ″, that is, the position where the visually handicapped person 119 is currently heading is calculated by the above-described arithmetic processing, and information on necessary objects is obtained. Is transmitted via the information transmitting means 141. The information presenting apparatus 200 ″ receives the transmitted information by the information receiving unit 101, and transmits the surrounding environment information to the visually impaired person 119 via the tactile information presenting unit 102 and the Braille display unit 112. Provide information about the object.

  Specifically, in the example of FIG. 10, when the visually handicapped person 119 approaches the intersection and indicates the direction of the information presentation device 200 ″, the Braille display unit 112 is formed according to the indicated position. 9D, for example, as shown in FIG. 9D, Braille indicating “Kousaten” (intersection) or “Shingo” (signal) as the name of the object appears in time series. Using this as a clue, the visually impaired person 119 can know in advance that, for example, a dangerous intersection exists in the direction he or she is heading, before reaching the intersection.

Further, for example, in the vicinity of an entrance of a transportation facility, when the ticket gate is instructed as an object by the information presenting apparatus 200 ", as shown in FIG. ) In such a manner that the braille corresponding to) appears in time series on the protrusion of the braille display means 112. In this case, the imaging means 120 and 130 and the information transmission means 141 are provided near the ticket gate, and the images acquired from these imaging means are sent to a center server (not shown). An instruction position indicated by the information presenting apparatus 200 ″ held by the visually impaired person is calculated by the arithmetic processing means mounted on the center server, and information such as the name of the object related to the indicated position is transmitted to the information receiving means 101. This is the same as described above.
In FIG. 10, the information presentation device 200 ″ and the cane of the visually impaired person 119 are separated, but the information presentation device 200 ″ is mounted in the cane, and the cane and the information presentation device 200 ″ are integrated. The information presentation device 200 ″ is mounted at a position where the hand touches the cane, and light is emitted in a direction perpendicular to the longitudinal direction of the cane, for example. Accordingly, the visually handicapped person 119 can carry the information presenting apparatus 200 ″ at the same time by holding the cane, and can point in a desired direction with the information presenting apparatus 200 ″ with the cane attached.

It is a figure which shows the structural example of the position measurement system utilized in the information presentation system which concerns on this invention. It is a figure which shows the structural example of the position measurement system utilized in the information presentation system which concerns on this invention. It is a figure for demonstrating the method of calculating the center position of concentric striped pattern light. It is a figure which shows one Example of the information presentation apparatus which concerns on this invention. It is a figure which shows the other Example of the information presentation apparatus which concerns on this invention. (A), (b) is a figure which shows the optical lens system in which the light which passed the upper half of the lens, and the light which passed the lower half form the interference fringe on a concentric circle. It is a figure which shows a part of concentric interference pattern obtained by simulation. (A) is a figure explaining one Example of the information presentation system which concerns on this invention, (b) is a figure which shows an example of the actual object information memorize | stored in an information storage means. (A)-(c) is a figure which shows the further another Example of the information presentation apparatus which concerns on this invention, (d) is a figure which shows the example of the Braille presented by the protrusion part of the Braille display means of the said information presentation apparatus It is. It is a figure explaining the other Example of the information presentation system which concerns on this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Projection means 101 Information receiving means 102 Tactile information presentation means 103 Light emission source 104 Collimating lens 105 Interference lens 107 Battery 108 Vibration part 109 Transmission reflection mirror 110 Reflection mirror 111 Condensing lens 112 Braille display means 113 Projection part 115 Stripe pattern light 120, 130 imaging means 140 arithmetic processing means (PC)
141 Information transmission means 142 Information storage means 200, 200 ', 200 "Information presentation device

Claims (14)

  Projection means for instructing an object and projecting concentric striped light, imaging means for detecting striped light emitted from the projection means, and the projection means based on information obtained from the imaging means Calculation processing means for calculating the indicated position, information storage means for storing information on the object indicated by the projection means, and information on the stored object corresponding to the calculated indicated position. Information transmitting means for transmitting, information receiving means for receiving information on the object transmitted from the information transmitting means, and tactile information presenting means for presenting the received information on the object via tactile sensation An information presentation system characterized by   The information presentation system according to claim 1, wherein the arithmetic processing unit sets a center position of the striped pattern light calculated from the detected striped pattern light as an indication position of the projection unit.   The information presentation system according to claim 1, wherein the projection unit, the information reception unit, and the tactile information presentation unit are housed in the same casing.   The information presentation system according to claim 1, wherein the information of the object includes surface information of the object.   The information presentation system according to claim 4, wherein the tactile information presentation unit includes a vibration unit for presenting surface information of the object.   6. The information presentation system according to claim 1, wherein the projection unit includes an optical system for emitting a condensed beam.   The information presentation system according to claim 1, wherein the information on the object includes a name of the object.   The information presentation system according to claim 7, wherein the tactile information presentation unit includes a Braille display unit for presenting a name of the object.   The information presentation system according to claim 8, wherein the Braille display means has a plurality of protrusions movable up and down.   An object is indicated, concentric stripe light is projected, the indicated position is calculated based on the information obtained by detecting the stripe light, and information on the object corresponding to the indicated position is obtained in advance. An information presentation device for use in an information presentation system that stores information and presents information on the target object based on information on the stored target object corresponding to the calculated instruction position, Projecting means for projecting concentric striped light, information receiving means for receiving information on the stored object corresponding to the indicated position of the projecting means, and tactile information about the received object information. An information presentation apparatus comprising tactile information presentation means for presenting via a tactile information.   The information presentation apparatus according to claim 10, wherein the tactile information presentation unit includes a vibration unit for presenting surface information of the object.   12. The information presentation system according to claim 10, wherein the projection unit includes an optical system for emitting a focused beam.   The information presentation apparatus according to claim 10, wherein the tactile information presentation unit includes a Braille display unit for presenting a name of the object.   The information presentation apparatus according to claim 13, wherein the Braille display means has a plurality of protrusions movable up and down.

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