WO2017013794A1 - 投射型映像表示装置及びそれに用いる投射レンズの防振装置 - Google Patents
投射型映像表示装置及びそれに用いる投射レンズの防振装置 Download PDFInfo
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- WO2017013794A1 WO2017013794A1 PCT/JP2015/070998 JP2015070998W WO2017013794A1 WO 2017013794 A1 WO2017013794 A1 WO 2017013794A1 JP 2015070998 W JP2015070998 W JP 2015070998W WO 2017013794 A1 WO2017013794 A1 WO 2017013794A1
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- vibration
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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
- G03B21/142—Adjusting of projection optics
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/16—Optical objectives specially designed for the purposes specified below for use in conjunction with image converters or intensifiers, or for use with projectors, e.g. objectives for projection TV
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- 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
-
- 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
Definitions
- the present invention relates to a projection type image display device and a vibration isolator for a projection lens used therefor.
- a projection type image display device that projects an image on a screen or the like
- an image formed by a display element such as a liquid crystal panel
- a projection lens vibrates, the screen shake projected on the screen is enlarged and displayed, so that the quality of the image is lowered and unsightly.
- Patent Document 1 discloses that when the focusing motor starts rotating, the lens apparatus shakes due to the impact and prevents the screen on the screen from shaking. Further, a configuration is disclosed in which the focusing lens portion side and the rack portion side are mechanically separated and an elastic member is interposed in the separation portion.
- the projection lens is used with an optional lens for short focus or long focus instead of the standard lens.
- an optional lens for a short focal point such as an ultrashort projection lens
- the lens unit becomes large and its weight increases in order to cope with various projection sizes at a short projection distance.
- a certain impact is received from the outside, it is transmitted to the projection lens via the projector body, causing the projection lens to vibrate (self-resonance).
- it is effective to increase the rigidity of the projector body and the mounting portion of the projection lens.
- the entire projector becomes large and costs increase.
- a mechanism for adjusting the projection position and the projection direction with respect to the screen is incorporated in the projection lens mounting portion. Since these adjustment mechanisms are adjusted by using a spring force, not only does the countermeasure for increasing the rigidity become difficult, but rather the vibration of the projection lens is likely to occur.
- Patent Document 1 The structure for preventing screen shaking described in Patent Document 1 is intended to prevent the vibration of the lens device caused by the impact when the focusing motor is driven. Therefore, the self-vibration of the projection lens generated by the impact received by the projector body as described above is not taken into consideration, and the vibration modes are different.
- elastic members such as rubber materials and springs are used to attenuate vibrations. However, in order to operate these elastic members effectively, they must be inserted in a compressed and compressed state. Don't be. At that time, it is necessary to have a configuration that does not hinder the function of the lens adjustment mechanism described above, and it is difficult to achieve both the projection lens adjustment function and the projection lens image stabilization function.
- An object of the present invention is to provide a projection-type image display device that efficiently attenuates vibrations of a projection lens without impairing the projection lens adjustment function, and a vibration-proof device for the projection lens used therefor.
- the present invention relates to a projection-type image display device that projects a video by attaching a projection lens to a display device body, and includes a vibration-proof device that suppresses vibration of the projection lens, and the vibration-proof device is fixed to the display device body.
- a friction sliding mechanism provided on the vibration isolating base, the lens sliding member moving in conjunction with the projection lens, and the base sliding that is a part of the vibration isolating base. It is characterized in that the vibration of the projection lens is attenuated by bringing the members into contact with each other in a pressurized state and sliding the both sliding members.
- a vibration isolator for a projection lens that suppresses vibration of a projection lens mounted on a projection video display device, and is provided on a vibration isolation base that is fixed to a main body of the projection video display device.
- the friction sliding mechanism has a pressure contact between the lens side sliding member that moves in conjunction with the projection lens and the base side sliding member that is a part of the vibration proof base.
- the vibration of the projection lens is attenuated by friction sliding of both sliding members.
- a projection-type image display device that displays a high-quality image by efficiently attenuating the vibration of the projection lens caused by an external impact and suppressing the shake of the projection image.
- a user-friendly device can be provided without impairing the adjustment function of the projection lens such as the projection position and the projection direction.
- FIG. 1 is an external view (a stationary type) showing an example of a projector.
- FIG. 2 is an external view (ceiling type) illustrating an example of a projector.
- the figure (propagation path) which shows the vibration of a projection lens in the case of having no anti-vibration mechanism.
- the figure (vibration waveform) which shows the vibration of a projection lens in the case of having no anti-vibration mechanism.
- the figure (propagation path) which shows vibration of a projection lens at the time of attaching an anti-vibration mechanism.
- the figure (vibration waveform) which shows the vibration of a projection lens at the time of attaching an anti-vibration mechanism.
- the figure explaining a shift adjustment function The figure which shows the structure of the vibration isolator corresponding to a shift adjustment.
- FIG. 1 and 2 are external views showing an example of a projection-type image display device (projector).
- FIG. 1 is a view from the top of the desk when used in a stationary state on a desk or the like (stationary type), and FIG. 2 shows a case of being used on a ceiling (ceiling type).
- a projection-type image display device (projector) 100 includes a projection lens 2 mounted on a display device main body (projector main body) 1, and a projection lens vibration isolator (hereinafter referred to as an anti-vibration device) 4 for preventing vibration of the projection lens 2. It is attached.
- an anti-vibration device hereinafter referred to as an anti-vibration device
- the vibration isolator 4 is attached and fixed to the bottom side of the projector body 1 with screws 5.
- the projector main body 1 to which the vibration isolator 4 is attached is attached to the ceiling or the like with the ceiling suspension bracket 6. In either case, a common vibration isolator 4 is used.
- the case of the stationary type will be described, but the case of the ceiling type is the same by simply turning the drawing upside down.
- the side facing the projection lens 2 of the vibration isolator 4 in each drawing is described as the lens side, and the opposite side is described as the bottom side.
- FIG. 3 shows a side view of the projector and the projection lens image stabilizer.
- the projector main body 1 houses components for constituting the projection type video display device.
- a display element transmission type liquid crystal panel, reflection type liquid crystal panel, DMD (Digital Micromirror Device (registered trademark) panel, etc.)
- a light source high-pressure mercury
- condensing the illumination light from the above light sources making the illumination light more uniform and irradiating the display elements, and supplying power for each part of the light source Power supply unit, cooling unit for releasing heat generation from the light source to suppress high temperature
- video input unit and audio input unit for inputting external video signals and audio signals, and outputting input audio signals
- An audio output unit a display element driving unit for sending a driving signal corresponding to the video signal to the display element, a memory unit for storing data when
- the projection lens 2 has a plurality of lenses and / or mirrors housed in a lens holding unit, and has a magnification function, a focus function, a zoom function, and the like.
- the projection distance to the screen is short, and an ultrashort projection lens that projects obliquely upward is shown.
- image plane adjustment such as curvature and blur at the end of the projected image is performed, so the number of lenses increases and the projection lens weight increases.
- the projection lens vibration isolator 4 is a device that is disposed on the lower surface side of the projection lens 2 and attenuates the vibration of the projection lens 2.
- the inside of the vibration isolator 4 is shown enlarged on the lower side of FIG.
- the anti-vibration device 4 is fixed to the projector body 1, and the displacement (vertical vibration) of the projection lens 2 is transmitted to the anti-vibration device 4 via the lens fixing member 3 attached to the projection lens 2.
- the fitting portion 7 is a portion to which the lens fixing member 3 is connected and which receives the vibration of the projection lens 2.
- the movement of the lens fixing member 3 is transmitted to the lens side sliding member 14 and the sliding washer 17 via the fitting portion 7, and the sliding member 14 and the sliding washer 17 vibrate up and down in synchronization with the projection lens 2.
- the base side sliding member 11 in the vibration isolator 4 is a stationary portion connected to the projector main body 1.
- the friction sliding mechanism 8 is configured in a state in which the lens side sliding member 14 and the sliding washer 17 are pressurized with the base side sliding member 11 interposed therebetween.
- these sliding members perform friction sliding with each other, and the friction force acts as a braking force to attenuate the vertical vibration.
- FIG. 4 is a view showing a mounting structure of the projection lens and the vibration isolator.
- the lens fixing member 3 is attached to the surface of the projection lens 2 on the vibration isolator 4 side with screws 31.
- the protruding portion of the lens fixing member 3 has a shape that can be inserted into the fitting portion 7 of the vibration isolator 4.
- FIG. 5 shows an external view of the vibration isolator.
- the vibration isolator 4 includes the fitting portion 7 and the friction sliding mechanism 8 mounted on the vibration isolating base 10 and a cover 26 attached to the bottom surface side.
- the anti-vibration base 10 is integrally formed with a portion fixed to the bottom surface of the projector body 1 and a portion on which the fitting portion 7 and the frictional sliding mechanism 8 are mounted.
- FIG. 6 shows an exploded view of the vibration isolator.
- the anti-vibration device 4 includes an anti-vibration base 10 made of a metal material, a guide member 12, a lens side sliding member 14, and a cover 26 as main components.
- the anti-vibration base 10 has a base-side sliding member 11 whose end in the projection direction is bent in the vertical direction, and reinforcing members 13 are attached to both sides with screws 23 to increase the rigidity of the anti-vibration base 10. ing.
- rubber feet 24 and anti-vibration rubber 25 are attached to the anti-vibration base 10 in order to suppress external vibration.
- a sliding washer 17 and a friction adjusting spring 18 are assembled to the lens side sliding member 14 by a sliding portion fixing bolt 21 and a nut 29 so as to be slidably attached to the base side sliding member 11.
- a fitting spring 15 as a fitting portion 7 and a spring fixing screw 16 are attached to the lens side sliding member 14.
- the guide member 12 is attached to the anti-vibration base 10 and restricts the movement of the lens side sliding member 14.
- the cover 26 is attached to the vibration isolation base 10 with screws 27.
- FIG. 7 shows an enlarged exploded view of the friction sliding mechanism.
- a lens-side sliding member 14 is disposed on the inner sliding surface S2 side with respect to the base-side sliding member 11 of the vibration-proof base 10.
- the rear surface of the lens side sliding member 14 has an extended portion 14 a of the sliding member 14, and a fitting spring 15 is attached to this by a spring fixing screw 16 to constitute the fitting portion 7.
- a fitting spring 15 is attached to this by a spring fixing screw 16 to constitute the fitting portion 7.
- the washer 20 the collar 19, the friction adjustment spring 18, the washer 28, and the sliding washer 17 are attached by the sliding portion fixing bolt 21 and the nut 29.
- the guide member 12 is attached to the sliding surface S2 side of the vibration-proof base 10 with a screw 22, and restricts the movement of the lens-side sliding member 14 in the vertical direction.
- FIG. 8 shows an assembly state diagram of the friction sliding mechanism.
- a sliding washer 17 is arranged on the outer sliding surface S1 of the base side sliding member 11 and is attached in a state where it is pressurized by a friction adjusting spring 18.
- FIG. 9 shows an enlarged sectional view of the friction sliding mechanism.
- the sliding washer 17 is in contact with the outer sliding surface S 1 of the base side sliding member 11, and the lens side sliding member is contacted with the inner sliding surface S 2 of the base side sliding member 11. 14 is in contact.
- the sliding washer 17 and the lens side sliding member 14 are connected by the sliding portion fixing bolt 21 and the nut 29 and are pressed against the sliding surfaces S1 and S2 by the friction adjustment spring 18.
- the length of the friction adjusting spring 18 at the time of assembly, that is, the applied pressure can be made constant by inserting the collar 19 having a predetermined length into the sliding portion fixing bolt 21.
- the fitting portion 7 provided on the back surface of the lens side sliding member 14 is connected to the lens fixing member 3 on the projection lens 2 side by an extension portion 14 a of the sliding member and a fitting spring 15.
- FIG. 10 is a diagram for explaining the frictional sliding operation of the frictional sliding mechanism.
- the axial position of the sliding portion fixing bolt 21 is denoted by reference numeral 21 '.
- the lens side sliding member 14 and the sliding washer 17 connected by the sliding portion fixing bolt 21 are displaced up and down in conjunction with the projection lens 2.
- a case of displacement downward (V ⁇ 0) and a case of displacement upward (V> 0) are shown.
- the sliding washer 17 and the lens side sliding member 14 are pressed against the base side sliding member 11 by a friction adjusting spring 18.
- the sliding surface S1 between the sliding washer 17 and the base side sliding member 11 and the sliding surface S2 between the lens side sliding member 14 and the base side sliding member 11 are in the sliding direction.
- a frictional force is generated, and this becomes a braking force to attenuate the vertical displacement, that is, vibration.
- the frictional force generated at this time depends on the friction coefficient of the sliding surfaces S 1 and S 2 and the pressure applied by the friction adjustment spring 18.
- the sliding surfaces of the sliding members 11 and 14 and the sliding washer 17 may be smooth and subjected to surface treatment so as to obtain a desired coefficient of friction.
- the vibration isolator 4 (anti-vibration base 10) moves as a unit with the projection lens 2, and self-vibration that combines the two is performed.
- the effect of suppressing the vibration of the projection lens 2 is not expected.
- FIG. 11A and FIG. 11B are diagrams showing the vibration of the projection lens when there is no anti-vibration mechanism for comparison.
- FIG. 11A shows a propagation path of vibration.
- vibration (impact) V1 When vibration (impact) V1 is applied to the desk 9 on which the projector is installed, it propagates to the projector body 1 and causes vibration V2. Further, the self-vibration V3 propagated to the projection lens 2 and enlarged is caused, and the projection screen is shaken.
- the self-vibration V3 is a neck vibration determined by the weight and length of the projection lens 2.
- FIG. 11B is a measurement example of the vibration waveform, and shows the vibration waveform V3 of the projection lens 2 when a predetermined impact is applied from the outside. In this example, the maximum amplitude was ⁇ 0.15 mm and the vibration duration was about 1 sec.
- FIG. 12A and FIG. 12B are diagrams showing the vibration of the projection lens when the vibration isolation mechanism of this embodiment is attached.
- FIG. 12A shows a propagation path of vibration.
- vibration (impact) V1 is applied to the desk 9 on which the projector is installed, vibration V2 of the projector body 1 and self-vibration V3 of the projection lens 2 are generated.
- the vibration V3 is attenuated and becomes smaller.
- FIG. 12B shows a measurement example of the vibration waveform, which was reduced to a maximum amplitude of ⁇ 0.1 mm (60%) and a vibration duration of 0.3 sec (30%).
- the amount of shaking of the projection screen is greatly reduced and the shaking time is shortened, so that the user's discomfort can be eliminated.
- FIG. 13 is a diagram illustrating a configuration of a vibration isolator that supports tilt adjustment.
- the projector includes a tilt adjustment function for adjusting the projection direction (elevation angle) of the projection lens 2 in accordance with the screen position.
- a tilt mechanism is provided in the mounting portion of the projector main body 1 to which the projection lens 2 is mounted so that the projection lens 2 can be rotated up and down by ⁇ ⁇ around a fulcrum.
- the lens-side sliding member extension portion 14a and the fitting spring 15 are formed in a clip shape in the fitting portion 7 connected to the lens fixing portion 3. And the lens fixing
- FIG. 14 is a diagram for explaining the shift adjustment function.
- the projector has a shift adjustment function of the projection lens 2 in order to adjust the projection position according to the screen position.
- a shift mechanism is provided in the mounting portion of the projector main body 1 to which the projection lens 2 is mounted, and the projection lens 2 is translated in the vertical direction ( ⁇ Y) and the horizontal direction ( ⁇ X). .
- FIG. 15A is a diagram illustrating a configuration of a vibration isolation device corresponding to shift adjustment.
- the sliding hole 11a is formed in the base side sliding member 11 where the sliding portion fixing bolt 21 intersects in accordance with the shift adjustment.
- the size of the sliding hole 11a is a size obtained by adding the vibration width of the projection lens 2 while the sliding portion fixing bolt 21 can move by the shift adjustment amounts ⁇ Y and ⁇ X.
- FIG. 15B and FIG. 15C are diagrams showing the position of the sliding portion fixing bolt after the shift adjustment.
- FIG. 15B shows a case where the shift is adjusted in the + Y direction, and the fixing bolt 21 moves to the vicinity of the upper side of the sliding hole 11a.
- FIG. 15C shows a case where the shift is adjusted in the ⁇ Y direction, and the fixing bolt 21 moves to the vicinity of the lower side of the sliding hole 11a.
- FIG. 16 is a diagram showing a contact state of the sliding surface during shift adjustment.
- the state of the sliding surfaces S1 and S2 when shifted upward (+ Y) and downward ( ⁇ Y) is shown.
- the sliding washer 17 and the lens-side sliding member 14 are in contact with each other with a sufficient area between the base-side sliding member 11 and can generate a necessary frictional force.
- the vibration isolator 4 of the present embodiment can surely attenuate the vertical vibration of the projection lens 2 without hindering the shift adjustment of the projection lens 2.
- Example 4 a configuration in which the lens side sliding member 14 in Example 1 is integrally provided on the projection lens 2 side will be described.
- FIG. 17 is a diagram showing a configuration of a projector using a lens-integrated sliding member.
- A shows the state which attached the lens-integrated sliding member 30 to the vibration isolator 4 side of the projection lens 2.
- the lens-integrated sliding member 30 corresponds to the lens-side sliding member 14 in the first embodiment.
- B shows a state where the vibration isolator 4 is attached to the lower side of the projection lens 2, and
- c) shows a cross section of the sliding mechanism.
- the lens-integrated sliding member 30 is in contact with the base-side sliding member 11 in the sliding mechanism to form a sliding surface S2.
- the other sliding surface S1 is the same as that of the first embodiment, and the sliding washer 17 and the base-side sliding member 11 are in contact with each other.
- the lens-integrated sliding member 30 integrally vibrates up and down, and the sliding washer 17 connected thereto moves up and down so that the vibration is attenuated by the frictional force generated on the sliding surfaces S1 and S2. Is done.
- the vibration isolator 4 is provided with one sliding member (reference numeral 11) and a sliding washer 17.
- the fitting portion is unnecessary, the configuration is simple.
- a projection-type image display device that displays high-quality images by efficiently attenuating the vibration of the projection lens caused by an external impact and suppressing the shake of the projection image. It can. At that time, since the adjustment function of the projection lens such as the projection position and the projection direction is not impaired, a user-friendly device can be provided.
- the present invention is not limited to the above-described embodiments, and the following modifications are possible.
- a resin material may be partially used for weight reduction.
- a desired frictional force can be obtained by appropriately performing a surface treatment.
- each embodiment has a configuration having two sliding surfaces S1 and S2
- a configuration having only one sliding surface is also possible.
- a simple configuration consisting of one sliding surface is obtained.
- a configuration having three or more sliding surfaces to increase the frictional force is also possible.
- 1 Projector body (display device body), 2: Projection lens 3: Lens fixing member, 4: Projection lens vibration isolator, 7: fitting part, 8: friction sliding mechanism, 10: Anti-vibration base, 11: Base side sliding member, 11a: sliding hole, 12: Guide member, 14: Lens side sliding member, 14a: extension part, 15: mating spring, 16: Spring fixing screw, 17: sliding washer, 18: Friction adjustment spring, 19: Color, 21: sliding part fixing bolt, 26: Cover, 29: nut, 30: Lens-integrated sliding member, 100: Projector (projection-type image display device).
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Abstract
Description
図5は、防振装置の外観図を示す。防振装置4は、防振ベース10に嵌合部7と摩擦摺動機構8を搭載し、底面側にはカバー26を取り付ける。防振ベース10は、プロジェクタ本体1の底面に固定される部分と、嵌合部7や摩擦摺動機構8を搭載する部分とが一体で形成されている。
図11Aと図11Bは、比較のために防振機構なしの場合の投射レンズの振動を示す図である。図11Aは振動の伝播経路を示す。プロジェクタを設置した机9に振動(衝撃)V1を与えると、プロジェクタ本体1に伝播して振動V2を引き起す。さらに投射レンズ2に伝播して拡大された自己振動V3を引き起こし、投射画面に揺れが発生する。自己振動V3は投射レンズ2の重量や長さで決まる首ふり振動である。図11Bは振動波形の測定例であり、外部から所定の衝撃を与えたときの投射レンズ2の振動波形V3を示す。この例では、最大振幅±0.15mm、振動継続時間約1secであった。
図13は、チルト調整に対応した防振装置の構成を示す図である。プロジェクタは、スクリーン位置に合わせて投射レンズ2の投射方向(仰角)を調整するためにチルト調整機能を備えている。具体的には、投射レンズ2を装着するプロジェクタ本体1の装着部にあおり機構を設けて、支点を中心に投射レンズ2を±θだけ上下方向に回転移動できる構成としている。チルト調整により投射レンズ2の姿勢(方向)が変化すると、投射レンズ2に取り付けたレンズ固定部3の姿勢も±θだけ変化することになり、防振装置4はこれに対応しなければならない。
図14はシフト調整機能を説明する図である。プロジェクタは、スクリーン位置に合わせて投射位置を調整するために投射レンズ2のシフト調整機能を備えている。具体的には、投射レンズ2を装着するプロジェクタ本体1の装着部にシフト機構を設けて、投射レンズ2を上下方向(±Y)と左右方向(±X)に平行移動させる構成となっている。
各実施例の防振装置及び摺動部材には金属材料を用いたが、軽量化のため一部に樹脂材料を用いてもよい。特に摩擦摺動面において、金属材料の代わりに樹脂材料や弾性材料で置き換えても、適宜表面処理を施すことで所望の摩擦力を得ることが可能である。
2:投射レンズ、
3:レンズ固定部材、
4:投射レンズ防振装置、
7:嵌合部、
8:摩擦摺動機構、
10:防振ベース、
11:ベース側摺動部材、
11a:摺動穴、
12:ガイド部材、
14:レンズ側摺動部材、
14a:延長部、
15:嵌合バネ、
16:バネ固定ネジ、
17:摺動ワッシャ、
18:摩擦調整バネ、
19:カラー、
21:摺動部固定ボルト、
26:カバー、
29:ナット、
30:レンズ一体型摺動部材、
100:プロジェクタ(投射型映像表示装置)。
Claims (11)
- 表示装置本体に投射レンズを装着して映像を投射する投射型映像表示装置において、
前記投射レンズの振動を抑える防振装置を備え、
前記防振装置は、前記表示装置本体に固定する防振ベースと、該防振ベース上に設けた摩擦摺動機構を有し、
前記摩擦摺動機構は、前記投射レンズに連動して動くレンズ側摺動部材と、前記防振ベースの一部であるベース側摺動部材とを加圧した状態で接触させ、両者の摺動部材が摩擦摺動することで前記投射レンズの振動を減衰させることを特徴とする投射型映像表示装置。 - 請求項1に記載の投射型映像表示装置であって、
前記摩擦摺動機構は、前記ベース側摺動部材を挟んで前記レンズ側摺動部材の反対側に摺動ワッシャを配置し、該摺動ワッシャと前記レンズ側摺動部材は摺動部固定ボルトと摩擦調整バネにより連結され、前記ベース側摺動部材に対して加圧した状態で摩擦摺動することを特徴とする投射型映像表示装置。 - 請求項1に記載の投射型映像表示装置であって、
前記投射レンズには、前記防振装置に振動を伝達するレンズ固定部材を取り付け、
前記防振装置には、前記レンズ固定部材と嵌合し、該レンズ固定部材の動きを前記レンズ側摺動部材に伝達する嵌合部を有することを特徴とする投射型映像表示装置。 - 請求項3に記載の投射型映像表示装置であって、
前記嵌合部は、前記レンズ固定部材を保持する部分をクリップ形状とし、前記投射レンズのチルト調整により前記レンズ固定部材の姿勢が傾斜しても、前記レンズ固定部材を線接触にて保持することを特徴とする投射型映像表示装置。 - 請求項2に記載の投射型映像表示装置であって、
前記ベース側摺動部材には前記摺動部固定ボルトを通す摺動穴を形成し、
前記摺動穴の大きさは、前記投射レンズのシフト調整により前記摺動部固定ボルトが移動できるサイズとしたことを特徴とする投射型映像表示装置。 - 投射型映像表示装置に装着された投射レンズの振動を抑える投射レンズの防振装置において、
前記投射型映像表示装置の本体に固定する防振ベースと、
前記防振ベース上に設けた摩擦摺動機構を有し、
前記摩擦摺動機構は、前記投射レンズに連動して動くレンズ側摺動部材と、前記防振ベースの一部であるベース側摺動部材とを加圧した状態で接触させ、両者の摺動部材が摩擦摺動することで前記投射レンズの振動を減衰させることを特徴とする投射レンズの防振装置。 - 請求項6に記載の投射レンズの防振装置であって、
前記摩擦摺動機構は、前記ベース側摺動部材を挟んで前記レンズ側摺動部材の反対側に摺動ワッシャを配置し、該摺動ワッシャと前記レンズ側摺動部材は摺動部固定ボルトと摩擦調整バネにより連結され、前記ベース側摺動部材に対して加圧した状態で摩擦摺動することを特徴とする投射レンズの防振装置。 - 請求項6に記載の投射レンズの防振装置であって、
前記投射レンズに取り付けられたレンズ固定部材と嵌合し、該レンズ固定部材の動きを前記レンズ側摺動部材に伝達する嵌合部を有することを特徴とする投射レンズの防振装置。 - 請求項8に記載の投射レンズの防振装置であって、
前記嵌合部は、前記レンズ固定部材を保持する部分をクリップ形状とし、前記投射レンズのチルト調整により前記レンズ固定部材の姿勢が傾斜しても、前記レンズ固定部材を線接触にて保持することを特徴とする投射レンズの防振装置。 - 請求項7に記載の投射レンズの防振装置であって、
前記ベース側摺動部材には前記摺動部固定ボルトを通す摺動穴を形成し、
前記摺動穴の大きさは、前記投射レンズのシフト調整により前記摺動部固定ボルトが移動できるサイズとしたことを特徴とする投射レンズの防振装置。 - 投射型映像表示装置に装着された投射レンズの振動を抑える投射レンズの防振装置において、
前記投射型映像表示装置の本体に固定する防振ベースと、
前記防振ベース上に設けた摩擦摺動機構を有し、
前記摩擦摺動機構は、前記投射レンズに一体で取り付けたレンズ一体型摺動部材と、前記防振ベースの一部であるベース側摺動部材とを加圧した状態で接触させ、両者の摺動部材が摩擦摺動することで前記投射レンズの振動を減衰させることを特徴とする投射レンズの防振装置。
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018124311A (ja) * | 2017-01-30 | 2018-08-09 | セイコーエプソン株式会社 | 投写光学装置、およびプロジェクター |
JP2022089480A (ja) * | 2020-12-04 | 2022-06-16 | カシオ計算機株式会社 | 投影装置及び投影装置の拡張ユニット |
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Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030112416A1 (en) * | 2001-12-17 | 2003-06-19 | Samsung Electronics Co., Ltd. | Apparatus for fixing an optical system |
JP2005128506A (ja) * | 2003-09-30 | 2005-05-19 | Sanyo Electric Co Ltd | 手持ち式プロジェクタ |
JP2005352293A (ja) * | 2004-06-11 | 2005-12-22 | Tamron Co Ltd | リアプロジェクション型映像装置 |
JP2006084781A (ja) * | 2004-09-16 | 2006-03-30 | Canon Inc | 発熱体保持ユニット、光学装置及び画像投射装置 |
JP2008170594A (ja) * | 2007-01-10 | 2008-07-24 | Nikon Corp | プロジェクタ光学系、プロジェクタ、及び、投影方法 |
JP2008250281A (ja) * | 2007-03-06 | 2008-10-16 | Sanyo Electric Co Ltd | 投写型表示装置 |
JP2012027324A (ja) * | 2010-07-26 | 2012-02-09 | Canon Inc | 表示装置、表示装置の制御方法、表示システム |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58123508A (ja) * | 1982-01-20 | 1983-07-22 | Hitachi Ltd | オ−トフオ−カス装置 |
JP2003107311A (ja) * | 2001-09-27 | 2003-04-09 | Nikon Corp | 光学素子保持装置、鏡筒及び露光装置並びにデバイスの製造方法 |
DE102004020297B4 (de) | 2004-04-26 | 2007-06-21 | Infineon Technologies Ag | Verfahren zur Herstellung resistiv schaltender Speicherbauelemente |
JP2007100714A (ja) * | 2005-09-30 | 2007-04-19 | Alps Electric Co Ltd | 防振装置及びこれを用いたカメラ装置 |
US7758027B2 (en) * | 2006-04-28 | 2010-07-20 | Hitachi, Ltd. | Vibration damper |
US7967453B2 (en) * | 2007-03-06 | 2011-06-28 | Sanyo Electric Co., Ltd. | Holding structure for holding a member in an external cabinet |
JP5038387B2 (ja) | 2009-12-22 | 2012-10-03 | 株式会社コシナ | プロジェクタのレンズ装置 |
-
2015
- 2015-07-23 WO PCT/JP2015/070998 patent/WO2017013794A1/ja active Application Filing
- 2015-07-23 US US15/746,280 patent/US10133159B2/en active Active
- 2015-07-23 CN CN201580081867.7A patent/CN107850824B/zh active Active
- 2015-07-23 JP JP2017529421A patent/JP6401863B2/ja active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030112416A1 (en) * | 2001-12-17 | 2003-06-19 | Samsung Electronics Co., Ltd. | Apparatus for fixing an optical system |
JP2005128506A (ja) * | 2003-09-30 | 2005-05-19 | Sanyo Electric Co Ltd | 手持ち式プロジェクタ |
JP2005352293A (ja) * | 2004-06-11 | 2005-12-22 | Tamron Co Ltd | リアプロジェクション型映像装置 |
JP2006084781A (ja) * | 2004-09-16 | 2006-03-30 | Canon Inc | 発熱体保持ユニット、光学装置及び画像投射装置 |
JP2008170594A (ja) * | 2007-01-10 | 2008-07-24 | Nikon Corp | プロジェクタ光学系、プロジェクタ、及び、投影方法 |
JP2008250281A (ja) * | 2007-03-06 | 2008-10-16 | Sanyo Electric Co Ltd | 投写型表示装置 |
JP2012027324A (ja) * | 2010-07-26 | 2012-02-09 | Canon Inc | 表示装置、表示装置の制御方法、表示システム |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2018124311A (ja) * | 2017-01-30 | 2018-08-09 | セイコーエプソン株式会社 | 投写光学装置、およびプロジェクター |
JP2022089480A (ja) * | 2020-12-04 | 2022-06-16 | カシオ計算機株式会社 | 投影装置及び投影装置の拡張ユニット |
JP7205730B2 (ja) | 2020-12-04 | 2023-01-17 | カシオ計算機株式会社 | 投影装置及び投影装置の拡張ユニット |
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