WO2014171147A1 - 投写型映像表示装置 - Google Patents
投写型映像表示装置 Download PDFInfo
- Publication number
- WO2014171147A1 WO2014171147A1 PCT/JP2014/002202 JP2014002202W WO2014171147A1 WO 2014171147 A1 WO2014171147 A1 WO 2014171147A1 JP 2014002202 W JP2014002202 W JP 2014002202W WO 2014171147 A1 WO2014171147 A1 WO 2014171147A1
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- WIPO (PCT)
- Prior art keywords
- housing
- projection
- light
- shaft
- unit
- Prior art date
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Classifications
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/145—Housing details, e.g. position adjustments thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
- G03B21/204—LED or laser light sources using secondary light emission, e.g. luminescence or fluorescence
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2066—Reflectors in illumination beam
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B33/00—Colour photography, other than mere exposure or projection of a colour film
- G03B33/06—Colour photography, other than mere exposure or projection of a colour film by additive-colour projection apparatus
Definitions
- the present disclosure relates to a projection display apparatus including a housing including a light source and a support unit that rotatably supports the housing.
- the projector modulates the light emitted from the light source according to the video signal by a spatial light modulation element such as a digital micromirror device (DMD) or a liquid crystal display element, and projects the light onto a screen.
- a spatial light modulation element such as a digital micromirror device (DMD) or a liquid crystal display element
- Patent Document 1 in consideration of these problems, a projection-type image display device that includes a connector that can be attached to an illumination wiring fixture and includes an illumination device on a surface corresponding to the floor surface of the housing is proposed. Yes.
- the projector is desired to have a configuration in which the posture (angle) of the main body can be freely adjusted (see, for example, Patent Documents 2 and 3).
- This disclosure is intended to provide a projection display apparatus that can arbitrarily adjust the emission angle of projection light.
- a projection display apparatus includes a light source unit, a video generation unit that modulates light from the light source unit according to a video input signal to generate video light, and a projection unit that projects the generated video light.
- a first housing that houses the first housing, a second housing, a joint portion that connects the first housing and the second housing, and supports the first housing so as to be rotatable within a predetermined angle range.
- the joint portion includes a ball joint mechanism having a shaft member having a spherical portion, a first holding portion that contains and holds the spherical portion, and a second holding portion. The spherical portion of the shaft member is rotatably held with respect to the first holding portion.
- the first holding unit is configured to be rotatable about a predetermined rotation axis with respect to the second holding unit.
- FIG. 1 is an external perspective view of a projection display apparatus according to a first embodiment of the present disclosure. It is a block diagram which shows the structure of a projection type video display apparatus. It is a figure explaining the optical structure of a projection type video display apparatus. It is a figure explaining the 2nd housing
- FIG. 1 is an external perspective view of the projection display apparatus 100.
- the projection display apparatus 100 includes a first casing 101 that mainly stores an optical member therein, and a second casing 102 that mainly stores a power supply board.
- the first housing 101 has a cylindrical shape.
- the first housing 101 and the second housing 102 are connected by a joint portion 103.
- the joint portion 103 includes a ball joint mechanism and supports the first housing 101 so as to be rotatable. Details of the joint portion 103 will be described later.
- FIG. 2 is a block diagram showing a functional configuration of the projection display apparatus 100.
- the projection display apparatus 100 includes a light source unit 110, a video generation unit 160 that generates video light according to a video input signal, and guides light from the light source unit 110 to the video generation unit 160.
- the illumination unit 120 a projection unit 180 that projects image light generated by the image generation unit 160 onto a screen (not shown), and a control unit 190 that controls the light source unit 110, the illumination unit 120, the image generation unit 160, and the like. And have.
- the light source unit 110 of the present disclosure includes the semiconductor laser element 112, and causes the phosphor to emit light using the light from the semiconductor laser element 112 as excitation light.
- the illumination unit 120 includes optical members such as various lenses, mirrors, and rods, guides light emitted from the light source unit 110, and illuminates the image generation unit 160.
- the video generation unit 160 spatially modulates light according to a video signal using an element such as a digital micromirror device (hereinafter abbreviated as DMD) or a liquid crystal panel.
- DMD digital micromirror device
- the projection unit 180 is composed of an optical member such as a lens or a mirror, and magnifies and projects spatially modulated light.
- FIG. 3 is a diagram illustrating the optical configuration of the projection display apparatus 100 housed in the first housing 101.
- the projection display apparatus 100 includes a light source unit 110, a video generation unit 160 that generates video light according to a video input signal, and illumination that guides light from the light source unit 110 to the video generation unit 160. 120 and a projection unit 180 that projects the image light generated by the image generation unit 160 onto a screen (not shown).
- twelve semiconductor laser elements 112 are two-dimensionally arranged in 3 rows ⁇ 4 columns at regular intervals on the heat sink 114, and lenses 116 are arranged so as to face the respective semiconductor laser elements 112. Is arranged.
- the lens 116 condenses the light emitted from each semiconductor laser element 112 and makes it parallel light.
- a heat sink 118 is disposed on the back surface of the laser element 112 of the heat sink 114.
- the heat sink 118 is for cooling the semiconductor laser element 112.
- the semiconductor laser element 112 emits linearly polarized blue color light having a wavelength width of 440 nm to 455 nm.
- Each semiconductor laser element 112 is arranged such that the polarization direction of the light emitted from the laser element 112 is S-polarized with respect to the incident surface of the dichroic mirror 130.
- the light emitted from the light source unit 110 enters the convex lens 122 and is condensed (smaller in diameter) and emitted to the mirror 124.
- the mirror 124 bends the optical path so that light from the convex lens 122 enters the plano-concave lens 126.
- the mirror 124 is arranged at a predetermined angle (that is, 55 °) with respect to the principal ray of the light emitted from the lens 122.
- the light enters the dichroic mirror 130 at a predetermined angle (55 °).
- the light whose optical path is bent enters the plano-concave lens 126 and is converted again into parallel light.
- the collimated light enters the dichroic mirror 130 via the diffusion plate 128.
- the diffusion plate 128 has a function of reducing the coherence while maintaining the polarization characteristics.
- the dichroic mirror 130 is disposed on the optical path so that light enters and exits at a predetermined angle (55 °) with respect to the dichroic surface.
- the light reflected by the dichroic mirror 130 enters the ⁇ / 4 plate 132 and is converted into circularly polarized light.
- the light converted into the circularly polarized light is condensed by the lens 134 so that the phosphor wheel 136 is irradiated with a spot diameter of 1 to 2 mm.
- the phosphor wheel 136 is formed of an aluminum flat plate, and is coated with a B region that is a diffuse reflection surface region, a G region coated with a phosphor that emits green color light, and a phosphor that emits red color light. It is divided into R regions.
- the light irradiated on the phosphor wheel 136 is reflected as it is in the B region, blue light is converted into green and red light in the G region and R region, and each converted color light is emitted to the lens 134 side.
- Each color light is collimated again by the lens 134 and enters the ⁇ / 4 plate 132.
- the blue color light passes through the ⁇ / 4 plate 132 again, is converted to P-polarized light, and enters the dichroic mirror 130.
- green and red color lights converted by the phosphor also enter the dichroic mirror 130.
- the dichroic mirror 130 has a characteristic of transmitting about 94% or more of P-polarized light and reflecting S-polarized light with a high reflectance of 98% or more with respect to light having a wavelength of 440 nm to 445 nm. . Due to such characteristics, the blue color light incident on the dichroic mirror 130 via the diffusion plate 128 is reflected by the dichroic mirror 130, but the blue color light incident from the ⁇ / 4 plate 132 passes through the dichroic mirror 130. . Therefore, all the light of each color incident from the ⁇ / 4 plate 132 is transmitted through the dichroic mirror 130. Thereby, blue, green, and red color lights are emitted in a time division manner.
- Blue, green, and red color light that has passed through the dichroic mirror 130 is incident on a pair of fly-eye lenses 138 and 140 that are composed of a plurality of lens elements.
- the light beam incident on the first fly-eye lens 138 is divided into a number of light beams. A large number of divided light beams converge on the second fly-eye lens 140.
- the lens element of the first fly-eye lens 138 has an opening shape similar to that of the DMD 162 of the image generation unit 160.
- the focal length of the lens element of the second fly-eye lens 140 is determined so that the first fly-eye lens 138 and the DMD 162 have a substantially conjugate relationship.
- the light emitted from the second fly's eye lens 140 enters the lens 142.
- the lens 142 is a lens for superimposing light emitted from each lens element of the second fly-eye lens 140 on the DMD 162.
- the light emitted from the lens 142 is reflected by the mirror 144, passes through the lens 164, and enters the total reflection prism 166.
- the total reflection prism 166 is composed of two prisms 168 and 170, and a thin air layer 172 is formed on the adjacent surface of each prism.
- the air layer 172 totally reflects light incident at an angle greater than the critical angle.
- Light that has entered the total reflection prism 166 via the lens 164 passes through the total reflection surface and enters the DMD 162.
- the DMD 162 deflects the micromirror into light incident on the projection lens 182 and light traveling outside the effective range of the projection lens 182 according to the video signal. Since the light reflected by the DMD 162 is incident on the air layer 172 at an angle greater than the critical angle, the light is reflected and incident on the projection lens 182. In this way, the image light formed by the DMD 162 is projected on a screen (not shown).
- FIG. 4 is a side view of the second housing 102.
- the first casing 101 mainly accommodates optical components.
- the second housing 102 mainly stores a power supply unit (power supply circuit) that supplies power from the wiring duct rail 90 to the light source unit 110, the illumination unit 120, the video generation unit 160, and the control unit 190. is doing.
- a mounting bracket 191 for attaching the second housing 102 to the wiring duct rail 90 is provided on the upper surface of the second housing 102. Power is supplied to the projection display apparatus 100 from the wiring duct rail 90 via the mounting bracket 191.
- the projection type video display apparatus 100 can be easily installed and the power source can be wired by attaching the mounting bracket 191 to the wiring duct rail 90.
- the joint portion 103 that supports the first housing 101 is attached to the lower side of the front surface 102SF side of the second housing 102. Further, as shown in FIG. 1, the second housing 102 includes an audio output terminal 194A for outputting an audio signal to an external device, and a USB terminal 194U for connecting a USB device.
- the joint part 103 that connects the first housing 101 and the second housing 102 will be described with reference to FIGS. 1 and 5 to 7.
- the joint portion 103 is configured using a ball joint mechanism.
- the joint portion 103 includes a pole 502 (an example of a second holding portion) that connects the first housing 101 and the second housing 102, and a ball shaft 504 (including a ball portion 510).
- a shaft member an example of a shaft member
- a shaft holder 508 an example of a first holding part
- the upper portion of the pole 502 is covered with a pole cover 506 to which a wire (not shown) that suppresses rotation about the vertical axis of the joint portion 103 is connected.
- the lower part of the pole 502 is covered with a shaft holder 508 that holds the pole 502 and the ball shaft 504.
- the ball shaft 504 has a shaft portion 514 connected to the spherical ball portion 510.
- the ball portion 510 is slidably accommodated in the hollow portion of the shaft holder 508.
- the ball portion 510, the shaft portion 514, and the shaft holder 508 constitute a ball joint mechanism.
- the shaft holder 508 is configured to be rotatable in the horizontal direction around the axis A11 in the vertical direction with respect to the pole 502. That is, the shaft holder 508 (that is, the ball shaft 504) can be rotated in the horizontal direction (Yaw) about the vertical axis A11.
- the ball shaft 504 rotates with respect to the shaft holder 508 (specifically, the ball portion 510 of the ball shaft 504 slides against the inner wall of the hollow portion of the shaft holder 508), the ball portion 510 The ball shaft 504 can be turned around the center of rotation. In other words, the ball shaft 504 can freely rotate in various directions with the center of the ball portion 510 as the center of rotation within a range until the ball shaft 504 contacts the end of the shaft holder 508 and can no longer move. . As described above, the orientation of the first housing 101 can be freely set within a predetermined limited angle range by the ball joint mechanism.
- an end wall of the shaft holder 508 is provided with a notch 512 by cutting the outer wall forming the cavity into a substantially semicircular shape in accordance with the outer diameter of the shaft 514. ing.
- the shaft portion 514 of the ball shaft 504 can take a state of being completely accommodated in the notch portion 512, a state of being completely exposed from the notch portion, and a state therebetween. Due to the notch 512, the movable range of the ball shaft 504 is expanded, and in particular, the first casing 101 can be rotated in the roll direction.
- the roll direction refers to a rotation direction when the first casing 101 is rotated about an axis parallel to the optical axis.
- a support portion (protrusion portion) 516 is provided at the end portion of the shaft holder 508 provided with the notch portion 512.
- the notch portion 512 has an inverted L-shape.
- the inverted L-shaped shape includes a region where the shaft portion 514 passes when the shaft portion 514 is moved into the notch portion 512, and a state where the shaft portion 514 is completely accommodated in the notch portion 512. 514, and an area that allows movement in the horizontal direction.
- the notch 512 has an inverted L-shape, the shaft 514 rotates in the horizontal direction in the notch 512 even after being completely accommodated in the notch 512. Is possible.
- the shaft portion 514 is rotated in the roll direction so as to be completely accommodated in the notch portion 512, and then the shaft portion 514 is cut. Shifting in the horizontal direction within the notch 512 can be arranged on the upper portion of the support 516. At this time, the shaft portion 514 is supported from below by the support portion 516 (see FIG. 5C).
- the shaft portion 514 that is, the first housing 101 can be supported against gravity by the support portion 516, and the first housing 101 can be supported. It becomes possible to maintain a stable posture.
- the notch portion 512 has a predetermined range of horizontal rotation of the shaft portion 514 (that is, the first housing 101) depending on its shape. Limit to the range. Specifically, the horizontal rotation range of the shaft portion 514 (that is, the first housing 101) in a state where the shaft portion 514 is completely accommodated in the notch portion 512 is in a range of 0 ° to 90 °. Limited. The range of 0 ° to 90 ° is an example, and the range of angles is not limited to this.
- the shaft portion 514 (that is, the first housing 101) is vertically downward (directly below) from the position where the optical axis of the emitted image light is in the horizontal direction.
- the rotation is possible in a range of 90 ° up to the position.
- the direction in which the first housing 101 can rotate in a state where the shaft portion 514 is accommodated in the notch portion 512 is the position (direction of orientation) between the first housing 101 and the shaft holder 508 (notch portion 512). ) It depends on the relationship. For example, when the orientation of the first housing 101 is held horizontally with the orientation of the back surface of the first housing 101 and the orientation in which the notch 512 is provided in the shaft holder 508 matched, The casing 101 can be rotated as follows. That is, by rotating the first housing 101 so that the shaft portion 514 moves in the notch portion 512 so that the front surface of the first housing 101 is directed downward, the orientation of the first housing 101 is changed. It can be rotated 90 degrees from the horizontal direction to the vertically downward direction.
- the direction of the first housing 101 (that is, the optical axis) can be changed from horizontal to directly below (see FIGS. 10, 11, and 12 described later).
- the first housing 101 The body 101 can be rotated as follows. That is, the first casing 101 is moved around the horizontal axis passing through the center of the ball portion 510 and parallel to the optical axis so as to pull the entire body upward while maintaining the posture of the first casing 101 horizontally.
- the first casing 101 can be rotated 90 degrees in the roll direction (see FIGS. 9 and 13 described later).
- a lock portion 518 is inserted between the pole 502 and the ball shaft 504.
- the lock portion 518 includes a coil spring (not shown), and when the ball shaft 504 rotates around a horizontal axis, the ball portion 510 is moved downward toward the shaft holder 508 by the spring force of the coil spring.
- the position can be fixed without using a screw or the like.
- FIG. 8 to 9 are diagrams for explaining the rotation of the first housing with respect to the second housing 102.
- FIG. 8A when the ball shaft 504 and the shaft holder 508 are integrally rotated with respect to the pole 502, the first housing 101 is horizontally oriented around the vertical axis A11. (Yaw direction). Further, the first housing 101 can also be rotated in the horizontal direction by the ball shaft 504 rotating in the horizontal direction with respect to the shaft holder 508.
- the ball shaft 504 comes into contact with the edge of the shaft holder 508 and cannot move any further. Can be freely rotated in various directions (horizontal direction, up and down direction within a limited range, and roll direction within a limited range).
- FIG. 9 is a diagram illustrating a state when the first housing 101 is rotated 90 ° in the roll direction.
- the shaft portion 514 In the first housing 101, by moving the shaft portion 514 to the notch portion 512, the shaft portion 514 is located vertically below the joint portion 103, and the shaft portion 514 is completely accommodated in the notch portion 512. Any state between the leveling state can be taken. That is, the first housing 101 can be rotated in the roll direction with the axis A14B passing through the center of the ball portion 510 as the rotation axis.
- the optical axis (AO) of the projection unit 180 does not intersect the center of the pole 502, that is, a position shifted from the central axis (AX) of the first housing 101. Is set to
- the ball shaft 504 is further moved to the horizontal axis A13 (to the shaft holder 508).
- the first housing 101 can be rotated in the vertical direction (pitch direction) in a state where vertical position projection is possible as shown in FIG. .
- the shaft portion 514 that is, the ball shaft 504 is supported by the support portion 516
- the direction of the axis A13 in which the shaft portion 514 can rotate is different from the direction of the rotation axis A11.
- the ball shaft 504 in the state where the shaft portion 514 is housed in the notch portion 512 (including the state where the shaft portion 514 is supported by the support portion 516), the ball shaft 504 is included. Can rotate with respect to the shaft holder 508 with the axis of the ball shaft 504 as the rotation axis. That is, the ball shaft 504 can freely rotate in the vertical direction. On the other hand, in the horizontal direction, the ball shaft 504 can first rotate in the region of the notch 512.
- the ball shaft 504 When the ball shaft 504 is in contact with the end surface of the notch 512 (shaft holder 508) and the ball shaft 504 is further rotated in the direction of the end surface, the ball shaft 504 is integrated with the shaft holder 508 and centered on the axis A11. Can be rotated as That is, since the shaft holder 508 can be rotated around the axis A11 with respect to the pole 502, the shaft 514 is horizontally oriented around the axis A11 even when the shaft 514 is housed in the notch 512. It can be rotated.
- the first housing 101 can be rotated at an arbitrary angle in each of the horizontal direction and the vertical direction, and the first housing 101, that is, the light The direction of the axis can be set freely. Note that by appropriately adjusting the force of pressing the ball portion 510 of the lock portion 518, even when the ball shaft 504 is not in contact with the end surface of the notch portion 512 (shaft holder 508), The shaft holder 508 may be integrated with the shaft holder 508 so that it can be rotated in the horizontal direction.
- FIG. 11 to 13 are diagrams illustrating examples of specific postures that the first housing 101 can take with respect to the second housing 102.
- FIG. FIG. 11 shows a posture when the first housing 101 is maintained vertically downward.
- FIG. 12 shows the posture when the first housing 101 is held obliquely downward.
- FIG. 13 shows a posture when the first housing 101 is rotated by 90 ° in the roll direction and the shaft portion 514 is maintained in a horizontal state by the support portion 516.
- the joint unit 103 allows the first housing 101 to be in various postures by the rotation axis A11 in the vertical direction with respect to the pole 502 of the shaft holder 508 and the ball joint mechanism including the shaft holder 508 and the ball unit 510. It is possible to set to. That is, the projection display apparatus 100 of the present embodiment includes a rotation axis A14B expanded by the notch 512 and a rotation axis A14B expanded by the notch 512, in addition to the rotation axis A14 having the center of the ball portion 510 as the rotation center, and 360 ° rotation. By combining with the movable vertical axis A11, it is possible to freely project the image light to the space below the height of the device itself.
- the projection display apparatus 100 of the present embodiment includes a light source unit 1110, a video generation unit 160 that generates light by modulating light from the light source unit 110 according to a video input signal, and A projection unit 180 that projects image light, a first casing 101 that houses a light source unit 110, an image generation unit 160, and a projection unit 180, a second casing 102, a first casing 101, and a second casing 102. And a joint portion 103 that supports the first housing 101 so as to be rotatable within a predetermined angle range.
- the joint portion 103 includes a ball shaft 504 (an example of a shaft member) having a ball portion 510 (spherical portion), and a shaft holder 508 (an example of a first holding portion) that encloses the ball portion 510 and holds it rotatably. And a ball joint mechanism having a pole 502 (an example of a second holding portion).
- the ball portion 510 of the ball shaft 504 is held so as to be rotatable with respect to the shaft holder 508.
- the shaft holder 508 is configured to be rotatable about a predetermined rotation axis A11 with respect to the pole 502.
- the projection-type image display apparatus 100 has a vertical axis A11 that can be rotated by 360 ° in addition to the rotation axes A14 and A14B caused by the ball joint mechanism, so that the posture of the first housing is changed. It can be set freely, and the emission angle of the projection light can be arbitrarily adjusted.
- the joint portion 103 is configured by components such as a pole 502, a ball shaft 504, and a shaft holder 508.
- the ball shaft 504 includes a ball portion 510 and a shaft portion 514 as in the first embodiment.
- the shaft holder 508 has a notch 512 and a support 516.
- the pole 502 is provided on the same plane as the optical axis (AO) of the projection unit 180. That is, in the first embodiment, as shown in FIG. 9, the center of the pole 502 intersects the central axis (AX) of the first casing 101. However, in this embodiment, the axis of the pole 602 is the first casing. A pole 602 is attached to the first housing 101 so as not to intersect the central axis (AX) of the 101. Accordingly, when the horizontal rotation about the horizontal axis (A15) is 0 °, the optical axis (AO) of the projection unit 180 is rotated about the vertical axis (A15). It becomes the center of vertical rotation about the horizontal axis (A14), and the convenience of installation is improved.
- FIGS. 16 and 17 are an external perspective view and an external front view of the projection display apparatus according to the third embodiment, respectively.
- the first housing 101 and the second housing 102 are connected by a joint portion 103 that can be rotated around three mutually independent axes.
- the joint portion 103 includes first to third joints 103Y, 103P, 103R.
- the first joint 103Y enables the first casing 101 to rotate in the horizontal direction around the vertical axis.
- the second joint 103 ⁇ / b> P allows the first casing 101 to swing in the vertical direction about the horizontal axis.
- the first joint 103 ⁇ / b> R is a third that enables rolling along the circumferential direction of the first casing 101 about the center line (center axis) of the cylinder of the first casing 101 having a substantially cylindrical shape. This is the joint 103R.
- the configuration of the joint unit 103 that connects the first housing 101 and the second housing 102 of the projection display apparatus 100 according to the present disclosure will be described.
- the joint portion 103 includes the first joint 103Y that can rotate around the vertical axis, and the second joint that is a horizontal axis that enables the first casing 101 to swing in the vertical direction. It has a joint 103P and a third joint 103R that allows the first housing 101 to rotate in the circumferential direction about a substantially cylindrical center axis (or an axis parallel to the optical axis) as a rotation axis. That is, the projection display apparatus 100 is configured to be rotatable about three orthogonal axes.
- an aluminum hinge 402 and a hinge arm 404 are connected so as to be rotatable about a vertical axis, and this connecting portion constitutes the first joint 103Y. ing.
- the hinge arm 404 is connected to a hinge holder 406 that constitutes a part of the side surface of the first housing 101, and the connecting portion has a second joint 103 ⁇ / b> P that enables the first housing 101 to swing in the vertical direction. It is composed.
- the hinge holder 406 includes a first hinge holder 408 and a second hinge holder 410 for fixing components inside the first housing 101, and a third hinge holder 412 provided with a guide (not shown) on the inner wall.
- a guide (not shown) on the inner wall.
- the guide is provided in the range of 0 ° or more and 90 ° or less, and the optical component or the like is configured to be rotatable in the range of 0 ° to 90 °.
- a scale (not shown) is provided on the outer wall of the third hinge holder 412, and this scale can be used as a guide when the user sets the first housing 101 at a desired angle.
- the rotation axis of the third joint 103R is parallel to the optical axis of the projection unit 180 (projection lens 182). Therefore, by rotating the third joint 103R by 90 °, the projection display apparatus 100 can display a portrait (portrait).
- the projection display apparatus 100 since it is configured to be rotatable in the range of 0 ° to 90 ° on one side, it is possible to easily set the portrait display and return to the normal state.
- an angle sensor such as a gyro sensor inside the first casing 101, the attitude of the first casing 101 is detected, and the portrait display and the normal display are automatically switched based on the detected attitude. You can also.
- the projection display apparatus 100 is used as an illumination device (illumination mode) and the power is turned off in the illumination mode, the next time the power is turned on, the projector is activated in the illumination mode to project an image (projection mode).
- illumination mode illumination mode
- projection mode projection mode
- the first to sixth embodiments have been described as examples of the technology disclosed in the present application.
- the technology in the present disclosure is not limited to this, and can also be applied to embodiments in which changes, replacements, additions, omissions, and the like have been made as appropriate.
- the shape of the first casing 101 of the projection display apparatus is a cylindrical shape
- the shape of the first casing 101 is not limited to this.
- the shape of the first housing 101 may be a shape whose cross section is a rectangle, an ellipse, or an ellipse.
- chamfering or R may be appropriately provided, and considering the affinity (designability) with the installation space, it is possible to consider not only a columnar shape but also a barrel shape.
- the configuration has been described in which the normal (landscape) display mode and the portrait display mode can be changed by rotating the hinge holder in the range of 0 ° to 90 °.
- the display is not limited to the two types of portraits, and an oblique angle may be displayed. At this time, if a scale is provided in the third hinge holder, the oblique angle can be easily adjusted.
- a projection display apparatus is used as an example of an electronic apparatus to which the concept of the present disclosure can be applied.
- the concept of the present disclosure can be applied to other electronic apparatuses. That is, a first object (parts, members, housing, chassis, case, etc.), a second object (parts, members, housing, chassis, case, etc.), and a joint part connecting them,
- the above-described idea of the joint part can be applied to an electronic device in which the joint part rotatably supports the first object or the second object.
- This disclosure can be applied to a projection display apparatus such as a projector.
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- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
1.投写型映像表示装置の全体構成
投写型映像表示装置について、以下に図を用いて説明する。図1は、投写型映像表示装置100の外観斜視図である。図1に示すように、投写型映像表示装置100は、主に光学部材を内部に収納する第1筐体101と、主に電源基板を内部に収納する第2筐体102とを有する。第1筐体101は円柱形状を有する。第1筐体101と第2筐体102とはジョイント部103によって接続される。ジョイント部103は、ボールジョイント機構を備え、第1筐体101を回動自在に支持する。ジョイント部103の詳細は後述する。
本開示に係る投写型映像表示装置の第1筐体101内部の構成について、図3を用いて説明する。図3は、第1筐体101に収納される、投写型映像表示装置100の光学的な構成を説明した図である。
本開示の投写型映像表示装置100の第2筐体102内部の構成について、図4を用いて説明する。図4は第2筐体102の側面図である。
第1筐体101と第2筐体102とを接続するジョイント部103の構成について、図1、図5~図7を用いて説明する。ジョイント部103はボールジョイント機構を用いて構成されている。
本実施形態の投写型映像表示装置100は、光源部1110と、光源部110からの光を映像入力信号に応じて変調して映像光を生成する映像生成部160と、生成された映像光を投写する投写部180と、光源部110、映像生成部160および投写部180を収納する第1筐体101と、第2筐体102と、第1筐体101と第2筐体102とを接続し、第1筐体101を所定の角度範囲で回動可能に支持するジョイント部103と、を備える。ジョイント部103は、ボール部510(球状部分)を有するボールシャフト504(シャフト部材の一例)と、ボール部510を内包して回動可能に保持するシャフトホルダ508(第1保持部の一例)と、ポール502(第2保持部の一例)とを有するボールジョイント機構を含む。ボールシャフト504のボール部510は、シャフトホルダ508に対して回動可能に保持される。シャフトホルダ508は、ポール502に対して所定の回転軸A11を中心として回動可能に構成されている。
本開示に係る第1筐体と第2筐体とを接続するジョイント部のさらに他の構成について、図14および図15を用いて説明する。なお、以下では、主として第1実施形態と異なる点について説明する。
本開示に係る第1筐体101と第2筐体102とを接続するジョイント部103のさらに他の構成について、図16および図17を用いて説明する。なお、以下では、主として第1実施形態と異なる点について説明する。図16、図17はそれぞれ、第3実施形態の投写型映像表示装置の外観斜視図、外観正面図である。
以上のように、本出願において開示する技術の例示として、第1実施形態~第6実施形態を説明した。しかしながら、本開示における技術は、これに限定されず、適宜、変更、置き換え、付加、省略などを行なった実施形態にも適用可能である。また、上記の第1実施形態~第6実施形態で説明した各構成要素を組み合わせて、新たな実施形態とすることも可能である。そこで、以下、他の実施形態を例示する。
Claims (8)
- 光源部と、
光源部からの光を映像入力信号に応じて変調して映像光を生成する映像生成部と、
生成された前記映像光を投写する投写部と、
前記光源部、前記映像生成部および前記投写部を収納する第1筐体と、
第2筐体と、
前記第1筐体と前記第2筐体とを接続し、前記第1筐体を所定の角度範囲で回動可能に支持するジョイント部と、を備え、
前記ジョイント部は、球状部分を有するシャフト部材と、前記球状部分を内包して保持する第1保持部と、第2保持部とを有するボールジョイント機構を含み、
前記シャフト部材の球状部分は、前記第1保持部に対して回動可能に保持され、
前記第1保持部は、前記第2保持部に対して所定の回転軸を中心として回動可能に構成されている
ことを特徴とする投写型映像表示装置。 - 前記保持部はその端部において前記球状部分を内包する空洞部を有し、前記空洞部を形成する外壁の一部に切欠き部が設けられていることを特徴とする請求項1記載の投写型映像表示装置。
- 前記保持部において前記切欠き部が設けられた端部に支持部が設けられ、
前記支持部は、前記第1筐体が前記ジョイント部により吊下げられて支持された状態において前記シャフト部材が前記支持部の上に配置された場合に、前記シャフト部材を下方より支持することを可能とする部材である、
ことを特徴とする請求項2記載の投写型映像表示装置。 - 前記所定の回転軸の方向は、前記シャフト部材が支持部に支持されているときにシャフト部材が回動可能な軸の方向と異なる、ことを特徴とする請求項3に記載の投写型映像表示装置。
- 前記所定の回転軸は、前記第1筐体が前記ジョイント部により吊下げられて支持されている場合の鉛直方向の軸であることを特徴とする請求項1ないし4のいずれかに記載の投写型映像表示装置。
- 前記所定の回転軸の回転方向は当該回転軸の軸方向と直交する方向である、ことを特徴とする請求項1ないし4のいずれかに記載の投写型映像表示装置。
- 前記ジョイント部は、前記保持部内で前記球状部分を押圧するロック部をさらに有することを特徴とする請求項1ないし4のいずれかに記載の投写型映像表示装置。
- 前記第2筐体は、前記光源部および前記映像生成部へ電力を供給する電源部を収納することを特徴とする請求項1ないし4のいずれかに記載の投写型映像表示装置。
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CN201480016326.1A CN105164584A (zh) | 2013-04-18 | 2014-04-18 | 投射型影像显示装置 |
JP2015512319A JP6390973B2 (ja) | 2013-04-18 | 2014-04-18 | 投写型映像表示装置 |
US14/857,126 US20160011495A1 (en) | 2013-04-18 | 2015-09-17 | Projection type image display device |
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US20160011495A1 (en) | 2016-01-14 |
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