JP2004287252A - Image projection device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating environment by which a user can observe images comfortably. <P>SOLUTION: The same image output signal as a main image 12 outputted from an image reproducing device B is used and a peripheral part image is projected to the peripheral part of the main image 12 simultaneously with the output of the main image. Thereby the peripheral part image is blurred and flickered as compared with the main image 12. The peripheral light of the main image is reflected by a reflector 5 to form the peripheral part image. A movable reflector is used as the reflector 5 when necessary. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an image projection device that can provide a lighting environment in which an image can be viewed comfortably.
[0002]
[Prior art]
Conventional artificial lighting devices for living spaces are intended to provide humans with sufficient brightness or to show colors close to nature, and in some cases, to arbitrarily provide a light intensity distribution. However, the present invention is characterized in that an illumination light source that does not change as much as possible over time is supplied. Generally, when viewing an image, it is considered that the lighting environment or the dark environment without lighting (such as a movie theater) is used.
[0003]
[Patent Document 1]
JP-A-2002-299078
[0004]
However, the part where the image is reflected is a part within the human visual field, and walls, furniture, and the like are reflected around the visual field. For this reason, even when watching an image, the image and the scenery around the visual field can be seen at the same time, so that there is no sense of reality as an image, so that the image and the person watching it are in different worlds. There is a drawback to feel. Further, if an image is projected over the entire field of view to solve this problem, there is a disadvantage in that the movement of one image cannot be completely followed by eyes.
[0005]
[Problems to be solved by the invention]
Although this kind of invention has not existed conventionally, Patent Document 1 is an invention of a comfortable artificial lighting environment created by the applicant, and the present invention is an extension of the invention or within the scope of the system. As described above, a problem to be solved (objective) of the present invention is to provide a new image projection device for enhancing comfort and a sense of reality when watching a video.
[0006]
[Means for Solving the Problems]
Therefore, the inventor of the present invention has conducted intensive studies to solve the above-described problems. As a result, the present invention uses the same video output signal as the main video output from the video playback device, and simultaneously executes the main video with the main video. This problem has been solved by providing an image projection device that can project a peripheral image onto the peripheral portion of the image. According to another aspect of the present invention, there is provided an image projection apparatus in which the peripheral image is blurred and fluctuated as compared with the main image to achieve the above object.・ The presence can be enhanced.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a simplified block diagram showing a first embodiment, in which 10 is a video playback device, B is a video projection device, 20 is a speaker, 21 is a video output line, 22 is an audio output line, 23 is a screen, S Is an illuminated space.
[0008]
The image projection device B has a structure as shown in FIG. Referring to FIG. 2, 1 and 2 are convex lenses, 3 is an aperture, 4 is a mirror, and 5 is a reflecting plate having a large number of folds and provided with a large number of uneven surfaces 5a. Specifically, as shown in FIG. 2 (C), a large number of folds are formed on an extremely thin metal plate (which may be a metal foil), and a large number of protrusions are formed so that a large number of protrusions are formed. An uneven surface 5a is formed. 6 is glass. FIG. 2A is a schematic cross-sectional view of the image projecting device B as viewed in plan, and FIG. 2B is a perspective view of the image projecting device B cut longitudinally. The mirror 4 is in close contact with the inside of the stop 3, and has an angle such that the light incident on the mirror 4 is reflected by the uneven portion 5 a of the reflection plate 5. The reflecting plate 5 is installed at a certain angle so that most of the light reflected from the reflecting plate 5 does not overlap the image reflected on the screen 23 as much as possible.
[0009]
FIG. 3 shows an image seen when the image projection device B is used. Reference numeral 11 denotes main image information, 12 denotes a main image reflected on a screen 23, and 13 denotes a fluctuation image. A part of the light having the main image information 11 sent from the image reproducing apparatus 10 is reflected by the mirror 4 to the reflecting plate 5 having the uneven surface. The light impinges on the reflecting plate 5 having the uneven surface to become light having unevenness in intensity. The light passes through the glass 6 and is projected on the periphery of the main image 12 reflected on the screen 23 as a peripheral image. This is the fluctuation image 13. With such a configuration, this light changes in accordance with the main image, and unlike the conventional time-uniform illumination, it is possible to realize an appropriate change synchronized with the image of the main image information 11. Therefore, a high sense of reality can be given to a person watching the video.
[0010]
There is also a method of using a movable reflector 50 as shown in FIG. 4 instead of the reflector 5 having an uneven surface. The movable reflector 50 is an assembly of movable mirrors 51, each of which moves one by one as shown in FIG.
[0011]
The movable reflector 50 will be described with reference to FIG. 4. FIG. 4A is a configuration diagram of the movable reflector 50, in which a movable mirror 51 is laid. FIG. 4B is a diagram illustrating a mechanism of the movable mirror 51. The movable mirror 51 includes a small mirror 52, an iron core 53, a spring 54, and an electromagnet 55. By passing a current through any one of the four electromagnets 55 installed in four directions around the small mirror 52, the iron core 53 is drawn to the electromagnet 55 and the small mirror 52 moves. When a current is applied to two adjacent electromagnets, the two electromagnets can be moved in the middle, that is, diagonally.
[0012]
With such a structure, the movable reflecting plate 50 can change the pattern of the reflected light which has not changed when the reflecting plate 5 having the uneven surface is used. As a result, it is expected that the person watching the image is given a higher sense of reality.
[0013]
Further, in the image projection apparatus B, a structure as shown in FIG. Referring to FIG. 5, reference numeral 7 denotes a half mirror, 8 denotes a filter having the same transmittance as the half mirror 7, and the other components are the same as those in FIG.
[0014]
An image which is seen when this device is used will be described with reference to FIG. Part of the light having the main image information 11 sent from the image reproducing device 10 is reflected by the reflection plate 5 by the half mirror 7, and part of the light passes through the convex lens 1 as it is. Light at the center of the main image 12 enters the convex lens 1 through the filter 8. The light reflected by the half mirror 7 illuminates the reflecting plate 5 having the uneven surface, and becomes light having uneven intensity. The light passes through the glass 6 and is projected on the periphery of the main image 12 reflected on the screen 23. This is the fluctuation image 13. At this time, the fluctuation image 13 does not overlap with the main image 12 reflected on the screen 23. With such a configuration, this light changes in accordance with the image, and unlike conventional time-uniform illumination, it is possible to realize an appropriate change synchronized with the image of the main image information 11. Therefore, it is possible to give a high realism to a person watching the image. When the screen 23 is viewed from the front, it is the same as FIG.
[0015]
In the apparatus shown in FIG. 5, the main video information 11 passes through the half mirror 7 and the filter 8. Therefore, it is necessary to make the transmittance of the half mirror 7 and that of the filter 8 equal so that the main image 12 projected on the screen 23 is normally projected. It is considered that the transmittance of the half mirror 7 and the filter 8 is preferably about 70 to 80%. The light intensity of the fluctuation image 13 does not need to be so large because it is information on the periphery of the visual field. This is because it is more important to care for the brightness of the main image 12 reflected on the screen 23. In the apparatus of FIG. 5, the main video information 11 passes through the half mirror 7 and the filter 8, so that the main video 12 reflected on the screen 23 becomes dark. Therefore, it is necessary to increase the light intensity of the light source.
[0016]
The image projection apparatus B shown in FIGS. 2 and 5 has a structure in which the glass 6 can be covered. When the fluctuation image 13 is not required, the user can view the conventional image by attaching the cover.
As described above, in the first embodiment, it is possible to easily realize an environment that gives a higher sense of reality than ever before when watching a video.
[0017]
As shown in FIGS. 6 and 7, the second embodiment is of an external type with respect to an independent conventionally known main video projector 30. This may have the function of a projector. FIG. 8A will be described with reference to the drawings. The first embodiment (see FIG. 1) of the video reproduction device 10, the speaker 20, the video output line 21, the audio output line 22, the screen 23, and the illuminated space S Is the same as By attaching the donut-shaped filter 31 to the lens portion of the main image projection device 30, a part of the light output from the main image projection device 30 is refracted and scattered, and the blurred light appears around the image. Since this light is output from the main image projection device 30, it fluctuates in synchronization with the image, and this light can give the viewer a sense of realism.
[0018]
As shown in FIGS. 6 (B) and 6 (C), the donut-shaped filter 31 is a cap, which is substantially a tubular portion and its front annular portion. The front annular portion is made of glass or acrylic. On the front surface, a large number of irregular irregularities are formed, the center of which is formed with an opening 31a, the periphery of the opening 31a is formed as a slope 31b, and the slope 31b is formed in a direction in which incident light is diffused. An anti-reflection film 31c is attached so as to proceed. It is preferable that the antireflection film 31c has excellent transmittance. Due to the presence of the antireflection film 31c, the light impinging thereon is prevented from being reflected and diffused outward so as not to affect the main image.
[0019]
FIG. 7 is a diagram of an apparatus in which the first embodiment of the present invention is externally attached. 7A, the video playback device 10, the speaker 20, the video output line 21, the audio output line 22, the screen 23, and the illuminated space S are the same as those in the first embodiment (see FIG. 1). It is. A fluctuation illumination generator 32 is placed in front of the lens of the main video projector 30. As shown in FIG. 7 (B), the fluctuation illumination generator 32 has a small mirror 33 at a certain angle in front of the lens of the main image projection device 30 and is reflected by the small mirror 33. The light impinges on the reflector 34 having the uneven surface. The reflection plate 34 is installed so that light reflected from the reflection plate 34 is slightly emitted so as not to overlap the main image reflected on the screen 23 as much as possible. The reflected light hitting the reflection plate 34 is reflected around the main image 12 as a fluctuating image 13 having an irregular pattern and similar to the first embodiment. Since the fluctuation illumination generating device 32 is output from the main image projecting device 30, it fluctuates in synchronism with the main image 12, and can give a sense of realism to a person watching by this light.
[0020]
There is a method of using a movable reflector 50 as shown in FIG. 4 instead of the reflector 34 having the uneven surface. This movable reflector 50 is the same device as that used in the first embodiment of the present invention.
[0021]
When the apparatus according to the second embodiment is used, when the screen is viewed from the front, a fluctuation image 13 is projected around the main image 12 reflected on the screen, as in FIG. 3B. At this time, the fluctuation image 13 partially overlaps with the main image 12 reflected on the screen 23. Since the fluctuation image 13 is output from the main image projection device 30, the fluctuation image 13 fluctuates in synchronization with the image, and this light can give the viewer a sense of realism. Also in the above-described second embodiment, it is possible to easily realize an environment that gives unprecedented high realism when watching a video.
[0022]
Next, a third embodiment of the present invention will be described with reference to the drawings. FIG. 8A is a block diagram showing a third embodiment of the present invention, in which a video playback device 10, a speaker 20, and a video output line 21 are provided. , The audio output line 22, the screen 23, and the illuminated space S are the same as in the first embodiment (see FIG. 1). Reference numeral 40 denotes an image projection device, which comprises an existing image projection device 41 similar to an existing projector for projecting an image and an illumination control device 42 as shown in FIG. As shown in FIG. 8 (c), the lighting control device 42 includes a video central processing unit (CPU) 43, a video reproduction data signal input means 44, a video / lighting signal conversion for converting a video reproduction data signal and a lighting control signal. It comprises a means 45, an illumination data storage means 46 for storing an illumination control signal, an illumination control signal output section 47 and an illumination light source 48.
[0023]
In order to operate this, in the video reproduction device 10, as shown in the flow chart of FIG. 9, the video data signal is converted into the illumination control signal by the illumination control device 42 (S1), and the illumination control signal is To illuminate the screen 23 (S2). Specifically, for example, a DVD on which an arbitrary video is recorded is played back by the video playback device 10, and the video playback data for control is controlled by the illumination control device 42 via the video output line 21 connected to the video projection device 40. The video / lighting signal conversion means 45 converts the video reproduction data signal as a lighting control signal, stores the lighting control signal in the lighting data storage means 46 as a lighting data signal, and outputs a lighting control signal output unit 47 To the illumination light source 48 to change the illumination intensity and the like. In addition, the image output from the device 41 similar to the existing projector and the light output from the illumination light source 48 do not overlap on the screen. With such a configuration, the illumination light source 48 changes in response to the image, and unlike the conventional temporally uniform illumination, it is possible to realize an appropriate variation synchronized with the image of the illumination light source 48. Therefore, it is possible to give a high realism to a person watching the image.
[0024]
A fourth embodiment of the present invention will be described with reference to the drawings. FIG. 10 is a block diagram showing a fourth embodiment of the present invention, in which a video reproducing device 10, a speaker 20, a video output line 21, and an audio output line 22 are provided. , The screen 23 and the illuminated space S are the same as in the first embodiment (see FIG. 1). Further, main video projectors 60 and 61 are provided. The main video projectors 60 and 61 only need to have the function of a projector. The main video projectors 60 and 61 have the same configuration as the main video projector 30. Reference numeral 24 denotes a sub-video output line connecting the video reproduction device 10 and the main video projection device 61, and 62 denotes a reflector provided with an uneven surface. The video signal from the video playback device 10 is output from the main video projection device 60 and the main video projection device 61, respectively. The main video 12 output from the main video projector 60 is projected on the screen 23 as it is. The main image 12 output from the main image projecting device 61 is once projected on a reflector 62 having an uneven surface, and the reflected light is applied to the periphery of the image output from the main image projecting device 60. Due to such an arrangement, light that varies in synchronization with the image and has uneven intensity appears on the periphery of the image output from the main image projection device 60. This light can give the viewer a sense of realism. When the screen 23 is viewed in this environment, the state is the same as that of FIG.
[0025]
In the fourth embodiment, there is a method in which the movable reflector 50 is used instead of the reflector 62 having the uneven surface. The movable reflector 50 has the same structure as that used in the first embodiment of the present invention.
[0026]
The genre of the video is completely arbitrary, but in general, so-called healing video has a more relaxing effect on humans. It can be expected to bring each effect.
[0027]
Taking a case where a healing video in the sea is viewed as an example, the video in the sea output from the video playback device 10 is reflected on the screen 23. Since the blue color of the sea changes in synchronization with the movement of the image in the peripheral portion of the screen 23, the viewer can feel as if they are in the sea, and can expect a high healing effect to be obtained.
[0028]
For example, when an action movie having an explosion scene is viewed, the action movie output from the video playback device 10 is displayed on the screen 23, and the peripheral portion of the screen 23 changes in synchronization with the motion of the video. I have. In the explosion scene, since the periphery of the screen 23 turns red in synchronization with the image reflected on the screen 23, the viewer can feel as if the explosion is in front of the eyes and a high elation feeling can be obtained. Can be expected.
[0029]
In the first, second, third and fourth embodiments, the speaker 20 for music reproduction is described. However, by outputting sound from the speaker 20, not only the visual sense but also the auditory sense can give a sense of realism to the video. The effect can be expected.
[0030]
It is desirable to separately output a sound that makes the user feel more realistic in accordance with the image in which the sound is also being viewed. For example, in the case of an image of a forest, it is a twitter of a small bird.
[0031]
FIG. 11 is an example of a conversion curve 49 between the video reproduction output intensity and the illumination light source intensity in the third embodiment. The relationship between the video reproduction output intensity and the illumination light source intensity is obtained by, for example, setting the video reproduction output intensity to the video reproduction output intensity by using an arbitrary curve as shown in FIG. It can be changed with any relationship. Obtaining the above-described conversion curve 49 is referred to as having a unique relationship between the video reproduction output intensity and the illumination light source intensity.
[0032]
【The invention's effect】
In the present invention, as described above, for example, by using a video signal, it is possible to output fluctuations and fluctuations synchronized with the video being viewed from the image projection apparatus, and the fluctuation illumination is applied to a peripheral portion of the video being viewed. By hitting, information (light) synchronized with the image enters from the periphery of the field of view instead of information such as walls and furniture that is not at all related to the image, so it is as if you are in the image There is an advantage that can be obtained.
[0033]
According to the present embodiment, an excellent effect of easily realizing an environment that gives a high sense of realism when watching a video is achieved.
[Brief description of the drawings]
FIG. 1 is a schematic diagram of a first embodiment of the present invention; FIG. 2A is a simplified cross-sectional view of the video projection device of the first embodiment; FIG. 2B is a longitudinal perspective view of the video projection device of the first embodiment; FIG. 3 (A) is a perspective view of a main part of a reflection plate. FIG. 3 (A) is a simplified sectional view of a state where the image is projected on a screen using an image projection device. FIG. FIG. 4A is a configuration diagram of a movable reflector, FIG. 4B is a side view of a movable mirror, FIG. 4C is a configuration diagram of a movable mirror, and FIG. FIG. 5 is a simplified cross-sectional view of the video projection device of the first embodiment when a half mirror is used. FIG. 6A is a schematic diagram of a second embodiment of the present invention, and FIG. FIG. 7A is a partially cutaway perspective view of the donut-shaped filter, and FIG. 7A is a cross-sectional view of the donut-shaped filter according to the second embodiment. Schematic diagram (B) of another second embodiment of the present invention is a cross-sectional perspective view of the fluctuation illumination generator of the second embodiment. FIG. 8 (A) is a schematic diagram (B) of a third embodiment of the present invention. FIG. 9 is a block diagram of a lighting control device according to a third embodiment. FIG. 9 is a block diagram of an illumination control device according to a third embodiment. FIG. 9 is a flowchart of a third embodiment of the present invention. FIG. FIG. 11 is a graph of a conversion curve between video reproduction output intensity and illumination light source intensity according to a third embodiment of the present invention.
B: Video projection device S: Illuminated space 10, 40 Video reproduction device 12: Main video 13: Fluctuation video 30, 60, 61: Main video projection device 50: Movable reflector 41: Existing video projection device 48: Illumination light source

Claims (8)

An image projection apparatus, wherein a peripheral video is projected onto a peripheral portion of the main video simultaneously with the main video by using the same video output signal as the main video output from the video reproducing apparatus. 2. The image projection device according to claim 1, wherein the peripheral portion image is blurred and fluctuates as compared with the main image. 3. The image projection device according to claim 1, wherein ambient light of the main image is formed as the peripheral image using a reflector. 4. The image projection device according to claim 1, wherein ambient light of the main image is formed as the peripheral image by using a movable reflector. 5. The device according to claim 1, wherein the main image is an independent main image projecting device, and the main image is detachably mounted on the main image projecting device so that the peripheral image can be projected. Image projection device. 6. The image projection device according to claim 1, wherein the correspondence between the intensity of the video output signal and the intensity of the peripheral image in the video reproduction device is an arbitrary one. . An illumination light source is arranged in a space to be illuminated, and the intensity or wavelength of the illumination light source is controlled by an illumination control device to control the intensity or wavelength of the illumination light source, and the intensity and wavelength of the illumination light source are temporally and spatially varied. An image projection apparatus characterized in that: As a means for outputting the same video from two existing video projectors and projecting a video that gives a sense of realism to the periphery of the main video at the same time as the main video, the video output from one of the projectors is reflected with an uneven surface. An image projection device characterized by being projected via a plate.

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