JPH06148744A - Original projecting device - Google Patents

Abstract

PURPOSE:To execute the carrying control for exchanging a projection original as a lecturer keeps facing a screen, without taking labor and time such that remote controls are turned toward a receiving part and operated whenever the projection original is exchanged by a remote control operation. CONSTITUTION:A panel 10 on which plural original carrying mode patterns are displayed is arranged so as to be adjacent to one end of an original platen 4 on which the projection original 3 is set and the carrying mode pattern of the panel 10 is projected on the screen 9 together with an original image by a display lamp 13. When the specific pattern of a carrying mode projected on the screen 10 is indicated with the rays of the light of a light emitting type indicator 18, the light emitted from the original spot and finished to pass the panel 10 is detected by an optical sensor 14 and a control means executes drive control so as to carry the projection original corresponding to the carrying mode of the specific pattern based on the detection signal.

Description

Detailed Description of the Invention

[0001]

The present invention is used in lectures and the like.
The present invention relates to a document projection device provided with a document transport mechanism, and more particularly to a document transport control means for the document projection device.

[0002]

2. Description of the Related Art In a document projection apparatus equipped with a document transport mechanism, speakers use a remote controller such as a wired remote controller, a wireless remote controller or an infrared remote controller to control the transport of a projected document in order to enhance the presentation effect. I do. On the other hand, a description will be given while showing the main points of the image projected on the screen using a pointing stick or a light emitting type pointer (pointer). Therefore, the speaker is
It is a burden on the operator to hold the pointing stick in one hand and the remote control in the other hand.

Therefore, it is conceivable that the pointer and the remote control are integrated, but in this case, there is a high possibility that the operation button of the remote control and that of the pointer are mixed and the operation is mistaken. Furthermore, in the case of a directional infrared remote control, etc., the remote control should be pointed at the remote control receiver installed on the projector body and the operation button should be pressed. Audiences in the vicinity may be irradiated with the light beam (for example, laser beam) of the light emitting type indicator, which is extremely dangerous.

Further, since the remote control is directed to the receiving section every time the remote control is operated, there is a problem that the flow of the presentation is cut off.

[0005]

SUMMARY OF THE INVENTION The present invention is intended to solve the above-described problems, and requires time and effort such as operating the remote controller toward the receiving section each time the projection original is replaced by operating the remote controller. It is an object of the present invention to provide a document projection device that allows a speaker to control conveyance for exchanging a projected document while facing the screen.

[0006]

In order to achieve the above object, the present invention provides: (1) a plurality of document transport mode patterns are displayed and are arranged adjacent to one end of a document table on which a projection document is set. A panel, a transport mode pattern projecting means for projecting the transport mode pattern of the panel adjacent to an original image projection area on the screen, and a transport mode projected on the screen, which is arranged in the device inside the panel. When the pattern is indicated by the light beam of the light emitting type indicator, the light receiving means for receiving the light emitted from the light spot and passing through the panel, and the output signal of the light receiving means, the transfer mode of the specific pattern instructed by the light emitting type indicator And a control means for controlling the driving so as to convey the corresponding projected original.

(2) A plurality of original conveyance mode patterns which are displayed adjacent to one end of the projection image on the projection original and are projected on the screen together with the projection image, and a conveyance mode when the projection original is set on the original table. It is placed inside the device inside the part where the pattern is located, and when the specific pattern of the transport mode projected on the screen is pointed by the light beam of the light emitting type indicator, the transport mode pattern part of the projection original is emitted from the light spot. A configuration including a light receiving unit that receives the light that has passed through and a control unit that performs drive control based on an output signal of the light receiving unit so as to carry a projected original corresponding to a carrying mode of a specific pattern designated by a light emitting type indicator. And

(3) In the configuration of (2), a light source for projecting the transport mode pattern displayed on the projection original on the screen is further provided.

(4) The structure of (2) and (3) above, wherein
Readable information corresponding to the displayed transport mode pattern is recorded on the projected original, and a reading unit for reading information corresponding to the transport mode pattern when the original is transported,
A storage means for storing the read information is further provided.

(5) Further, in the above-mentioned (1) to (4), the control means is such that the instruction time of the specific conveyance mode on the screen by the light beam of the light emission type indicator exceeds a predetermined time. In this case, the control is performed so that the document transport operation is performed.

[0011]

According to the above structure, a plurality of document transport mode patterns displayed on the panel arranged adjacent to the document table or on the projected document itself are projected on the screen together with the document image, and the projected image is transported on the screen. The light emitted from the light spot is received by the light receiving means by indicating the specific pattern of the mode with the light beam of the light emitting type indicator.
Upon receiving the output signal of the light receiving means, the control means drives and controls so as to carry the projected original corresponding to the carrying mode of the specific pattern designated by the light emitting type indicator.

In addition, in the above (4), in addition to the original document projection function, the function can be expanded by a special use method.

Further, a designated time by the light emitting type indicator is set, and when the set value is not reached, the document transport operation is prevented from occurring, and reliable transport control is performed.

[0014]

Embodiments will be described in detail below with reference to the drawings. FIG. 1 shows the outer appearance of a first embodiment of the present invention, in which reference numeral 1 is a so-called transmitted light type document projection apparatus. Reference numeral 2 denotes an original storage unit for storing a plurality of projection originals 3, and when the projection originals are taken out, it is provided with a moving means for moving up and down so that a desired projection original comes to the take-out position. Reference numeral 4 denotes a document table on which the projection document 3 is set at the time of projection, and the document storage 2
A document transport mechanism 5 transports the projected document between the document table 4 and the document table 4. As shown in FIG. 2, a projection lamp 6 is installed in the apparatus inside the platen 4, and the light emitted from the projection lamp 6 passes through the platen 4 made of a Fresnel lens and then onto it. The projected original 3 that has been set is transmitted. The transmitted light corresponding to the original image is projected onto the screen via the projection lens 7 and the mirror 8.

Reference numeral 10 denotes a panel on which a plurality of original document transport mode patterns are displayed, and is arranged adjacent to one end of the original document table 4 together with the Fresnel lens 11. Furthermore, in the device inside them, a half mirror 12, an indicator lamp 13, an optical sensor
14 are arranged as shown in FIG.

Next, the operation of this embodiment will be described with reference to FIG. When the projection document 3 set on the document table 4 is irradiated with the light of the projection lamp 6, the transmitted light corresponding to the document image is projected on the screen 9 through the projection lens 7 and the mirror 8 and the projection image 16 is displayed. . On the other hand, the indicator lamp
The light of 13 is transmitted through the half mirror 12 and the Fresnel lens 11 and is applied to the panel 10, and the transmitted light corresponding to the plurality of document transport mode patterns displayed on the panel 10 is transmitted through the projection lens 7 and the mirror 8 to the screen 9 Projected on the projected image
17 is projected.

Reference numeral 18 is a light emitting type indicator which is used by the speaker to explain the main points of the projected image projected on the screen by using light rays.
(For example, a laser pointer). Now, when the explanation of the image being projected is finished and the next projection manuscript is started, the speaker specifies the light beam of the light-emitting indicator 18 among the plurality of transport mode patterns projected on the screen 9. Illuminate the pattern. The irradiated light beam is diffusely reflected on the specific pattern, and the light from the light spot passes through the specific pattern portion of the panel 10 via the mirror 8 and the projection lens 7 and is reflected by the half mirror 12 to be reflected by the optical sensor 14. Incident on. A detection signal from the optical sensor 14 is sent to a control unit (not shown), and the control unit drives and controls so as to carry the projected original corresponding to the carrying mode of the specific pattern instructed by the light emitting type indicator.

In the present embodiment thus constructed, the lecturer does not emit the light beam of the light emitting type indicator toward the receiving section installed in the document projection apparatus, but conveys the image displayed on the screen 9. It suffices to fire it toward a specific one of the mode patterns, and therefore, it is possible to perform conveyance control for exchanging the projected original while facing the screen.

FIGS. 4 and 5 show a second embodiment of the present invention, in which 20 is a so-called reflected light type original projection device. The same reference numerals as those in the first embodiment represent the same parts, 21 is a lamp house, 22 is a document table made of a mirror Fresnel lens, and 23 is a half mirror Fresnel lens.

The light emitted from the projection lamp 6 of the lamp house 21 is reflected by the document table 22, passes through the projection document 3 and becomes a light image corresponding to the document image, and the projection lens 7 and the mirror 8 are provided.
And then projected onto the screen. In addition, the light of the projection lamp 6 is similarly reflected by the half mirror Fresnel lens 23 to display a plurality of original transport mode patterns on the panel.
After passing through 10, it is projected on the screen through the projection lens 7 and the mirror 8. In the present embodiment, unlike the first embodiment, the dedicated display lamp for displaying the transport mode pattern is not necessary, and the projection lamp 6 also serves as the display lamp.

FIG. 6 is a diagram for explaining the operation of this embodiment, in which light from the specific pattern in the original transport mode on the screen 9 designated by the light emitting type indicator 18 is reflected by the mirror 8 and the projection lens 7.
After passing through the specific pattern portion of the panel 10 through the half mirror Fresnel lens 23, the light enters the optical sensor 14.

It goes without saying that the present embodiment also has the same operational effects as the first embodiment. In the first and second embodiments, the projected image 17 of the original transport mode pattern displayed on the panel 10 can be formed on the screen even when the original image is not projected on the screen. The document switching operation by the light emitting type indicator 18 can be performed.

7 and 8 show a third embodiment of the present invention. Here, a panel on which a plurality of document transport mode patterns are displayed is not provided, and the document transport mode patterns are displayed adjacent to one end of the projected image of the projected document 3. Therefore, when the projection document 3 set on the document table 4 is projected by the projection lamp 6, the document transport mode pattern is also projected on the screen 9 together with the document image as shown in FIG.

Therefore, when a specific pattern in the original transport mode pattern on the screen 9 is designated by the light emitting type indicator 18, the light from the light spot is transmitted through the mirror 8 and the projection lens 7 to the specific pattern portion of the projected original 3. Passes through, is reflected by the half mirror 12, and enters the optical sensor 14. Also in this embodiment, the lecturer can perform the conveyance control for exchanging the projected original while facing the screen 9.

FIG. 10 shows a fourth embodiment in which, in the embodiment of FIG. 8, a dedicated display lamp 13 for projecting the transport mode pattern displayed on the projection original on the screen is further provided outside the projection lamp 6. It shows an example. Also,
In this case, as shown in FIG. 11, when the light emission type indicator 18 indicates the original transport mode pattern on the screen 9, the light passing through the transport mode pattern portion of the projection original 3 and reflected by the half mirror 12 is transmitted. Optical sensor that reflects again
A second half mirror 25 leading to 14 is also provided.

In this way, if the display lamp 13 dedicated to the transfer mode pattern projection is provided, the speaker intentionally adds the lighting / turn-off mode of the projection lamp 6 to the outside of the transfer mode pattern. Can be turned off to temporarily stop the projection of the original image. Except when explaining while referring to the manuscript image, this is the projected manuscript (by turning off the projection lamp or covering the manuscript platen) in order to concentrate the attention of the listener on the talk of the speaker. This is because it is often performed by temporarily suspending the projection of.

FIGS. 12 and 13 show a fifth embodiment of the present invention, which is a reflected light type document projection device and shows a document transport mode pattern on a part of the projected document 3. is there. In this case, at least a part of the document table 22 composed of a mirror Fresnel lens is a half mirror Fresnel lens 23.
And need to. The document table 22 may also be composed of a half mirror Fresnel lens.

The operation and effect of this embodiment are substantially the same as those of the other embodiments, as shown in FIG.

FIG. 15 is a block diagram showing the sixth embodiment of the present invention, in which the readable information corresponding to the displayed transport mode pattern is displayed on the projection original 3.
For example, a reading unit which is recorded by magnetism or a bar code and reads the conveyance mode information when the projection original is conveyed.
31 and a storage means 32 for storing the read information are further provided.

Therefore, information is read when the projected original is conveyed, and the read content is converted into a signal and stored in the storage means 32. When the conveyance mode is instructed by the light emitting type indicator 18 and the instruction light is received by the light receiving section 33, the control section 34 controls the conveyance of the projected original according to the instruction.

In such a configuration, it is possible to set the document transport mode for each projected document, and various applications are conceivable. For example, "-" is written on the transport mode display portion, and the question and four answers are written on the projected original. In the image projected on the screen, if you specify, the correct answer, and if you specify ,, it is incorrect. Now, if is instructed, the projection original is conveyed so that the next question will be presented, but if is instructed, the projection original of the corresponding explanation of the question is conveyed. In this way, in addition to the original projection document conveyance control, the functions can be expanded by a special usage method.

By the way, while the projected image 16 formed on the screen 9 is shown by the light emitting type indicator 18, the light beam happens to pass over a specific pattern of the projected image 17 in the document transport mode. However, it is inconvenient that light is incident on the optical sensor 14 and the replacement operation of the projection document occurs. Therefore, the light emitting type indicator 18 must be operated only when there is a reliable conveyance instruction.

For that purpose, the drive control unit is provided with the optical sensor 14
Means for detecting the light receiving time, and when the light receiving time does not exceed the set value, the operation of carrying the projected original is prohibited, or when the light receiving time exceeds the set value, the carrying operation is started. The operation flow is shown in FIG.

[0034]

As described above, according to the present invention,
The speaker exchanged the projection manuscript while facing the screen,
The transfer control can be performed, the operation load on the speaker can be reduced, and the presentation flow can be improved without interrupting the flow of explanation.

Further, unlike the conventional case, since it is not necessary to emit a light emitting type indicator (for example, a laser pointer) toward the projection apparatus main body, it is possible to avoid the risk of accidentally irradiating the listener with laser light. , High safety.

Further, in the case where the transport mode pattern can be independently displayed on the screen, the projected image of the projected original can be erased so that the listener's attention can be focused on the lecturer's explanation.

Further, in the structure in which the information corresponding to the transport mode pattern is read and stored by the reading means,
In addition to the original document projection function, it is possible to expand functions by special usage.

In any case, the conveying operation of the projection original does not occur only when the light beam of the light emitting type indicator simply crosses the conveying mode pattern on the screen, and the conveying operation is executed by instructing for a predetermined time. It enables reliable transport control.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of an essential part of the first embodiment.

FIG. 3 is an operation explanatory diagram of the first embodiment.

FIG. 4 is a perspective view showing an appearance of a second embodiment of the present invention.

FIG. 5 is a cross-sectional view of main parts of the second embodiment.

FIG. 6 is an operation explanatory diagram of the second embodiment.

FIG. 7 is a perspective view showing an appearance of a third embodiment of the present invention.

FIG. 8 is a cross-sectional view of main parts of the third embodiment.

FIG. 9 is an operation explanatory diagram of the third embodiment.

FIG. 10 is a cross-sectional view of essential parts of a fourth embodiment of the present invention.

FIG. 11 is an operation explanatory diagram of the fourth embodiment.

FIG. 12 is a perspective view showing the appearance of a fifth embodiment of the present invention.

FIG. 13 is a cross-sectional view of an essential part of the fifth embodiment.

FIG. 14 is an operation explanatory diagram of the fifth embodiment.

FIG. 15 is a block diagram of a sixth embodiment of the present invention.

FIG. 16 is an operation flowchart for preventing malfunction by detecting the light receiving time of the light receiving unit.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Transmissive-type document projection device, 2 ... Document storage unit, 3
… Projection document, 4,22… Document table, 6… Projection lamp,
9 ... Screen, 10 ... Panel, 12 ... Half mirror, 13 ... Indicator lamp, 14 ... Optical sensor, 18 ...
Light emitting type indicator, 20 ... Reflected light type document projection device, 21 ...
Lamphouse, 23… Half mirror Fresnel lens,
31 ... Reading means, 32 ... Storage means.

Claims (5)

[Claims] 1. A document projector equipped with a projection document transport mechanism, wherein a plurality of document transport mode patterns are displayed, a panel is disposed adjacent to one end of a document table on which a projection document is set, and a transport of the panel. Conveyance mode pattern projecting means for projecting the mode pattern adjacent to the original image projection area on the screen, and a light emitting type indicator arranged in the device inside the panel for displaying the specific pattern of the conveyance mode projected on the screen. Light receiving means for receiving the light emitted from the light spot and passing through the panel when instructed by the light beam, and the projection signal corresponding to the transport mode of the specific pattern instructed by the light emitting type indicator by the output signal of the light receiving means. An original document projection apparatus, comprising: a control unit that controls driving so as to convey an original document. 2. A document projector having a projection document transport mechanism, a plurality of document transport mode patterns displayed adjacent to one end of a projected image on a projected document and projected on a screen together with the projected image; When a document is set on the platen, it is placed in the device inside the part where the transport mode pattern is located, and when the specific pattern of the transport mode projected on the screen is indicated by the light beam of the light emitting type indicator, the light spot And a light receiving means for receiving light that has passed through the transport mode pattern portion of the projection document and a transport of the projection document corresponding to the transport mode of the specific pattern instructed by the light emitting type indicator by the output signal of the light receiving means. A document projection apparatus, comprising: a control unit that controls driving so as to perform the following. 3. The original document projection device according to claim 2, further comprising a light source for projecting the transport mode pattern displayed on the projected original document on a screen. 4. A readable information corresponding to the displayed transport mode pattern is recorded on the projected original, and a reading unit for reading the information corresponding to the transport mode pattern when the original is transported, and the read information. 4. The document projection apparatus according to claim 2, further comprising a storage unit for storing, and setting a conveyance mode for each projection document. 5. The control means controls to carry out the operation of carrying the projected original when the designated time of the specific carrying mode on the screen by the light beam of the light emitting type indicator exceeds a predetermined time. The document projection apparatus according to any one of claims 1 to 4.