JP3214041B2 - 3D planetarium equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planetarium that allows a celestial body to be viewed three-dimensionally.

[0002]

2. Description of the Related Art A conventional planetarium is designed to artificially reproduce the constellation of an astronomical object by optically projecting light onto a dome-shaped screen to imitate the constellation of an astronomical object. However, when you look at the celestial body from the earth, you cannot see it in three dimensions. Therefore, the expression of celestial bodies was limited to the expression of light. For this reason, it was difficult to visually grasp the relative positional relationship between each planet, orbit, period, size, and the like.

[0003] It is conceivable to solve the above problem by projecting a 3D video onto a dome-shaped screen.

[0004]

However, a 3D image formed by a video projector is provided on a part of the dome-shaped screen.
When an image is projected, a sense of discomfort occurs inside and outside the frame of the 3D image. That is, in the frame of the 3D image, the presence of the screen disappears because the image is far and near, whereas the existence of the screen itself is too conspicuous in the outside of the frame to express the vastness of the universe. become.

[0005]

A lamp is attached to a lamp holder provided with a mechanism for changing the distance between the left and right sides, and a pair of lamp holders covering the respective lamp surfaces with polarizing plates orthogonal to each other is used for 3D. The present invention provides a three-dimensional planetarium screen device attached to a video screen.

[0006]

When a 3D image is projected on a part of the dome-shaped screen by a video projector, the image has a perspective within the 3D image frame, and the presence of the screen surface disappears. Outside the 3D image frame, the plurality of pairs of lamps of the present proposal represent stars with perspective, so that the presence of the screen disappears as in the 3D image frame.

[0007] The boundary between the inside and outside of the frame of the 3D image is removed, so that the 3D image and the light having a perspective obtained from the present apparatus have the effect of expanding the viewing angle. Therefore, it is possible to express the relative positional relationship, orbit, period, size comparison, and the like of a constellation moving in a wide field of view.

[0008]

FIG. 1 is a side view of a planetarium,
Reference numerals 1 to 9 denote a lamp interval variable mechanism, which will be described later, and show the mounting position of the lamp interval variable device on the dome screen. Reference numeral 10 denotes a video projector. The planetarium includes a dome screen for projecting constellations and a front screen for projecting image information.

FIG. 2 is a front view of the planetarium building, showing a mounting state of a plurality of variable lamp interval devices in which a pair of left and right lamps are horizontally arranged. 2-1L, 2-2L,
2-3L, 2-4L, 2-5L, 2-6L, 2-7L,
2-8L, 2-9L and 2-1R, 2-2R, 2-3
R, 2-4R, 2-5R, 2-6R, 2-7R, 2-8
R and 2-9R represent polarizing plates that cover the lamp surface of the variable lamp interval mechanism, where the polarization directions on the L side are all horizontal directions and the polarization directions on the R side are all vertical directions.

[0010] Of the pair of lamps arranged side by side, for example, the surface of the left lamp is covered with a polarizing plate having a vertical polarization direction, and the surface of the right lamp is covered with a horizontal polarizing plate. The polarization direction of the polarizing plate covering the lamp surface may be horizontal on the left and vertical in the right. However, it should be noted that the perspective is reversed in the 3D effect, and that the depth is different in the 3D effect due to the difference between the pair of left and right lamps.

The variable lamp spacing device is mounted symmetrically on the dome screen. Further, in addition to the dome-shaped screen, a pair of left and right lamp spacing variable devices equipped with a polarizing plate can be mounted, for example, by suspending in a hollow part in a building, mounting on a structure in the building, or mounting on a movable structure. Is also good. FIG. 3 shows a side view of a lamp case attached to the variable lamp interval device. 3-1 polarizing plate, 3-2 lamp, 3-3 reflecting plate, 3-4 polarizing plate mounting bracket, and 3-5 lamp case.

FIG. 4 is a three-dimensional perspective view of the lamp case.
The light emitted from 2 passes through the polarizing plate 3-1 without leaking to the other. 3-3, a reflecting mirror 3-5, a light shielding case, and 3-4, a polarizing plate mounting cap. FIG. 5 shows the relationship between the polarization direction of the polarizing plate attached to the lamp case and the polarization glasses. Specifically, the polarization directions of the right eye of the polarization glasses 5-3 and 5-1R and 5-2R are the same. Direction.
The polarization direction of the polarizing plate and the polarizing glasses attached to the lamp case is shown. The polarization direction of the right eye side of the 5-3 polarizing glasses is a vertical direction, and the polarization direction of the left eye side is a parallel direction.

The polarization directions of the 5-1L, 5-1L and 5-2L polarizers are horizontal, 5-1R, 5-1R ', 5-
The polarization direction of the 2R polarizing plate is the vertical direction. Therefore, 5-
The lamps at the back of 1R and 5-2R are visible to the right eye, and the left eye side is not visible because the polarization directions are orthogonal. 5-1L, 5-2L
Is the same polarization direction as the left eye side of the polarizing glasses 5-3. Therefore, the lamps behind 5-1L and 5-2L can be seen by the left eye and cannot be seen by the right eye because the polarization directions are orthogonal to each other. Since the human eye always adjusts the left and right viewpoints to one point, the information obtained from the left and right eyes is almost the same with only a slight parallax.

Therefore, whether the viewpoints of the left and right eyes are parallel with the polarizing plate,
Alternatively, if there is a visible object on the left and right even if separated at the intersection, there is a habit of searching for a common part from the visible information and concentrating the viewpoint there. Therefore,
First, set the left eye to 5-2L and the right eye to 5-2R.
When stereoscopically viewed based on this, 5-1L and 5-1R are 5-
It looks deeper than 2L ・ 5-2R.

Next, when the distance between 5-1L and 5-1R is changed to 5-1L 'and 5-1R', respectively,
5-1L · 5-1R, which was seen from the back from 2R, gradually advances from the back from 5-2L · 5-2R as the interval is widened, and eventually, at the position of 5-1L ', 5-1R',
5-1L'.5-1R 'appears to be bidding ahead of 5-2L.5-2R.

FIG. 6 shows the polarizing plates on the surface of the left and right lamp cases attached to the plurality of variable lamp interval mechanisms, respectively, and the left and right lamp intervals are different from each other as in the arrangement example. The polarization direction of the polarizing plate is 6-1L, 6-2L,
6-3L, 6-4L, 6-5L, 6-6L are horizontal,
6-1R, 6-2R, 6-3R, 6-4R, 6-5R,
6-6R is the vertical direction. By the way, when the lamp of the above arrangement is stereoscopically viewed with the polarized glasses as shown in FIG. 5, 6-3L · 6
-3R appears at the back.

Next, 6-2L-6-2R, 6-1L-6-
1R6-4L 6-4R, 6-5L 6-5R, 6-6
L-6-6R exist in the hollow in the order of 6-6L, 6-6
R appears to be bidding to the nearest side. FIG. 7 shows the lamp arrangement of FIG. 6 in which the lamp interval is changed by a variable lamp interval mechanism. The lamp case attached to the variable-lamp-interval mechanism with respect to the vertical movement was rearranged in an upward or downward direction in conjunction with the variable-lamp-interval mechanism by a vertically movable mechanism while maintaining the horizontal position. By the way, when the arrangement of FIG. 7 is stereoscopically viewed, 6-3L and 6-3R appear at the innermost position as in the case of FIG.

The following are 6-1L 'and 6-1R', 6-2L '
6-2R ', 6-4L', 6-5L'6-5R, 6
In the order of -6L 'and 6-6R', 6-6L 'and 6-6R' can be seen in the foreground as in FIG. FIG.
FIG. 9 shows an operation diagram of the variable lamp interval mechanism, and FIG. 9 shows a perspective view of FIG. 8-1 and 8-2 are the lamp cases shown in FIGS. 3 and 4, 8-3 and 8-6 are fixed shafts, 8-4, 8-5 and 8-7.
Is a guide pin 8-8 is a cam, 8-9 is a motor, 8-1
Reference numerals 0 and 8-11 indicate a lamp case, and 8-12 indicates a spring.
First, the 8-8 cam rotates by the power of the 8-9 motor. When the guide pin is pushed depending on the rotation angle of the cam, the ramp interval increases and the 8-12 spring extends at the same time. Eventually, when the rotational position of the cam changes and the force for pressing the guide pin recedes, the interval between the left and right lamp holders becomes smaller due to the contraction force of the spring.

In the above-described embodiment, the lamp is housed in the lamp case of the variable lamp interval mechanism. However, if you do not need much brightness as a light source, if the installation location is small, and if you want to avoid the temperature rise of the lamp,
When it is difficult to mount the lamp for safety, or when the lamp cannot be used directly in the case of weight reduction, use the fiber indirectly, and use the fiber from the lamp installation location to use the fiber as shown in FIG. May be guided. FIG. 10 is a view in which the lamp case portion of FIG. 9 is replaced for a fiber, and the lamp interval variable mechanism has the same structure as that of the first embodiment. 1
0-1 is a fiber, 10-2 is a lamp. 10-3 shows a polarizing plate. Further, an element such as an EL may be used as a light source.

[0020]

According to the present invention, when a 3D image is projected on a part of the dome-shaped screen by a video projector, a sense of perspective is generated in the 3D image frame, and the presence of the screen surface disappears. Outside the 3D image frame, the plurality of pairs of lamps of the present proposal represent stars with perspective, so that the presence of the screen disappears as in the 3D image frame.

Therefore, the boundary between the inside and the outside of the frame of the 3D image is removed, and the 3D image and the light having the perspective obtained from the present apparatus have the effect of expanding the combined viewing angle. In addition, since the present apparatus can freely change each star in the perspective direction, up and down, and left and right, it is possible to systematize operations related to 3D video. Therefore, it is easy to express the relative positional relationship, orbit, period, size comparison, and the like of a constellation moving in a wide field of view.

[Brief description of the drawings]

FIG. 1 shows a side view of a planetarium according to the present invention.

FIG. 2 shows a front view of a planetarium according to the present invention.

FIG. 3 shows a side view of a lamp socket part of the variable lamp interval mechanism.

FIG. 4 is a perspective view of a lamp socket portion of the variable lamp interval mechanism.

FIG. 5 is a diagram showing a polarization direction relationship between a polarizing plate attached to a lamp case and polarizing glasses.

FIG. 6 shows polarizing plates on the left and right lamp case surfaces respectively attached to a plurality of variable lamp interval mechanisms.

FIG. 7 is a diagram showing a state in which the lamp interval of the lamp arrangement of FIG. 6 is changed by a lamp interval variable mechanism.

FIG. 8 is a diagram showing an operation state of a variable lamp interval mechanism.

FIG. 9 is a perspective view of a lamp interval variable mechanism.

FIG. 10 is a perspective view of another embodiment of the present invention in which a lamp case portion is replaced for a fiber.

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G09B 27/00 G02B 27/26 G03B 37/00

Claims (5)

(57) [Claims] 1. A video screen comprising a plurality of lamp interval variable mechanisms comprising: a pair of lamp holders covering respective lamp surfaces with polarizing plates orthogonal to each other; and a mechanism for varying an interval between the lamp holders. A three-dimensional planetarium device characterized by being installed. 2. The three-dimensional planetarium apparatus according to claim 1, wherein the lamp is a light source introduced by an optical fiber. 3. The three-dimensional planetarium apparatus according to claim 1, wherein the lamp interval variable mechanism is a mechanism for displaying light to represent a planet. 4. The three-dimensional planetarium apparatus according to claim 1, wherein said lamp holder has a diameter corresponding to the size of a planet. 5. The three-dimensional planetarium apparatus according to claim 1, wherein said video screen comprises a dome-shaped screen and a front screen.