JP2002341433A - Light shielding mask - Google Patents
Light shielding maskInfo
- Publication number
- JP2002341433A JP2002341433A JP2001142038A JP2001142038A JP2002341433A JP 2002341433 A JP2002341433 A JP 2002341433A JP 2001142038 A JP2001142038 A JP 2001142038A JP 2001142038 A JP2001142038 A JP 2001142038A JP 2002341433 A JP2002341433 A JP 2002341433A
- Authority
- JP
- Japan
- Prior art keywords
- light
- plate
- shielding
- shielding plate
- base
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Optical Elements Other Than Lenses (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Mounting And Adjusting Of Optical Elements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、投写型ディスプレ
イ装置の投写レンズ前面に搭載され、投写レンズの光量
を調整するための遮光調整機構を備えた遮光マスクに関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-shielding mask mounted on a front surface of a projection lens of a projection display apparatus and provided with a light-shielding adjusting mechanism for adjusting a light amount of the projection lens.
【０００２】[0002]
【従来の技術】従来より、大画面に映像を表示する装置
には、例えばその一例として、図４に示すような投写型
ディスプレイ装置が知られている。2. Description of the Related Art Conventionally, as a device for displaying an image on a large screen, for example, a projection display device as shown in FIG. 4 is known.
【０００３】この投写型ディスプレイ装置１０の構成に
ついて簡単に説明すると、光源ランプ１からの高輝度の
光は、凹面反射鏡２で集束され、フィールドレンズ３を
通過して蛍光面４に入射し、蛍光面４は映像信号に基づ
いて画素の透過率を制御し、その画像を投写レンズ５を
介して拡大させてスクリーン６に拡大された画像７を投
写するという構成である。The structure of the projection display apparatus 10 will be briefly described. High-intensity light from a light source lamp 1 is focused by a concave reflecting mirror 2 and passes through a field lens 3 to enter a fluorescent screen 4; The fluorescent screen 4 controls the transmittance of pixels based on a video signal, enlarges the image via a projection lens 5, and projects an enlarged image 7 on a screen 6.
【０００４】上記投写型ディスプレイ装置１０によって
スクリーン６に投写される画像７には光源ランプ１の高
輝度特性が要求されるため、一台の投写型ディスプレイ
装置１０で投写できる画像７の大きさにはおのずと限界
がある。Since the image 7 projected on the screen 6 by the projection display device 10 requires high luminance characteristics of the light source lamp 1, the size of the image 7 that can be projected by one projection display device 10 is reduced. There is naturally a limit.
【０００５】そこで、スクリーン６に投写される画像７
においてさらに大画面を得たい場合には、図５に示すよ
うに、上記投写型ディスプレイ装置１０を上下左右に複
数個組み合わせ、各投写レンズ５，５，…からスクリー
ン６に投写される複数の画像７−１，７−２，…，７−
ｎを合成して一つの画面を構成する必要があり、このよ
うなマルチビジョンディスプレイを採用すれば、スクリ
ーン６に投写される画像７の輝度を下げることなく高精
細な画像の大画面を得ることができる。Therefore, an image 7 projected on the screen 6
When it is desired to obtain an even larger screen, as shown in FIG. 5, a plurality of the above-mentioned projection type display devices 10 are combined vertically and horizontally, and a plurality of images projected on the screen 6 from the respective projection lenses 5, 5,. 7-1, 7-2, ..., 7-
It is necessary to compose one screen by combining n. If such a multi-vision display is adopted, a large screen of a high-definition image can be obtained without lowering the brightness of the image 7 projected on the screen 6. Can be.
【０００６】上記のようなマルチビジョンディスプレイ
では、投写型ディスプレイ装置１０，１０間において、
投写された画像７−１，７−２，…，７−ｎに輝度のバ
ラツキがあると、合成された大画面の画像７’上に輝度
ムラを生じたり、複数の画像７−１，７−２，…，７−
ｎ同士の接触部分に継ぎ目が現れたりするため、各投写
型ディスプレイ装置１０により投写される画像７，…の
一部を重複させた上で、各投写レンズ５から投写される
光量の調整作業を行なう必要がある。In the above-described multi-vision display, between the projection display devices 10, 10,
If the projected images 7-1, 7-2,..., 7-n have variations in luminance, luminance unevenness may occur on the synthesized large-screen image 7 ', or a plurality of images 7-1, 7- -2, ..., 7-
Since a seam appears at a contact portion between n, a part of the images 7,... projected by the projection display devices 10 are partially overlapped, and then the adjustment work of the amount of light projected from each projection lens 5 is performed. You need to do it.
【０００７】しかしながら、従来の光量の調整方法は、
光量の多い投写レンズ５からの投写光路を遮断するため
に、投写レンズ５の表面に遮光板８を粘着テープ等によ
って直接貼りつけて光量の調整を行なう方法を採用して
いるため、スクリーン６に投写された大画面の画像７’
の輝度ムラや継ぎ目を確認した上で、その輝度ムラや継
ぎ目のパターンに応じて最適な形状の遮光板８を形成し
なければならず、光量の微調整が利かないため、大画面
の画像７’における重複部分７ａの画面が周囲の画面よ
りも明るくなり、合成された画面全体が均一な明るさと
ならず不自然な画面となってしまうという問題があっ
た。However, the conventional method of adjusting the light amount is as follows.
In order to cut off the projection optical path from the projection lens 5 having a large amount of light, a method of adjusting the amount of light by directly attaching a light shielding plate 8 to the surface of the projection lens 5 with an adhesive tape or the like is adopted. Large screen image 7 'projected
After checking the brightness unevenness and the seam, the light-shielding plate 8 having an optimal shape must be formed according to the brightness unevenness and the seam pattern. There is a problem that the screen of the overlapping portion 7a in the 'is brighter than the surrounding screen, and the combined screen does not have uniform brightness and is an unnatural screen.
【０００８】[0008]
【発明が解決しようとする課題】本発明は、上記のよう
な問題点に鑑みてなされたものであり、その目的とする
ところは、投写型ディスプレイ装置において、投写レン
ズの光量を微調整することができ、マルチビジョンディ
スプレイにおいて合成された大画面全体に均一な明るさ
を実現できる遮光マスクを提供することにある。SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to finely adjust the amount of light of a projection lens in a projection display device. It is an object of the present invention to provide a light-shielding mask capable of achieving uniform brightness over the entire large screen synthesized in a multi-vision display.
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る遮光マスクは、投写レンズ前面に着脱
可能に搭載するための遮光マスクであって、上記投写レ
ンズの形状に合わせて穿孔されたレンズ孔を有するベー
スと、上記投写レンズの光量を微調整するために上記ベ
ース上に摺動可能に取付け固定された遮光板からなる遮
光調整機構とを具備することを特徴とするものである。In order to achieve the above-mentioned object, a light-shielding mask according to the present invention is a light-shielding mask for detachably mounting on a front surface of a projection lens, and is adapted to the shape of the projection lens. A base having a perforated lens hole, and a light-shielding adjustment mechanism comprising a light-shielding plate slidably mounted and fixed on the base for finely adjusting the amount of light of the projection lens. It is.
【００１０】また、本発明に係る遮光マスクは、上記遮
光調整機構において、上記ベースの一端に所定間隔離隔
して配置され、上記遮光板を摺動可能に支持する一対の
案内板と、上記ベースの他端に所定間隔離隔して配置さ
れ、上記遮光板を引張り固定する弾性体と、上記遮光板
を摺動可能に取付け固定するために、遮光板に取付けら
れた連動板に連結する調整ボルトとを具備することを特
徴とするものである。The light-shielding mask according to the present invention, in the light-shielding adjusting mechanism, includes a pair of guide plates slidably supporting the light-shielding plate, the guide plates being disposed at a predetermined distance from one end of the base, and the base being slidable. An elastic body that is disposed at a predetermined distance from the other end of the light-shielding plate and that pulls and fixes the light-shielding plate, and an adjustment bolt that is connected to an interlocking plate attached to the light-shielding plate to slidably mount and fix the light-shielding plate. And characterized in that:
【００１１】また、本発明に係る遮光マスクは、上記遮
光板の両端が上記案内板間の距離を直径とする円弧形状
に面取りされ、かつ、上記連動板が上記遮光板に対して
揺動可能に一点支持されるとともに、上記遮光板が上記
調整ボルトの長さ方向および上記連動板を軸とする回転
方向に調整可能に取付け固定されていることを特徴とす
るものである。Further, in the light-shielding mask according to the present invention, both ends of the light-shielding plate are chamfered into an arc shape having a diameter equal to a distance between the guide plates, and the interlocking plate can swing with respect to the light-shielding plate. And the light-shielding plate is attached and fixed so as to be adjustable in the length direction of the adjusting bolt and in the rotational direction about the interlocking plate as an axis.
【００１２】また、本発明に係る遮光マスクは、上記投
写レンズが撮影系レンズであることを特徴とするもので
ある。Further, in the light-shielding mask according to the present invention, the projection lens is a photographing lens.
【００１３】また、本発明に係る遮光マスクは、上記遮
光調整機構が上記ベースと同形の外部フレームにより覆
われていることを特徴とするものである。Further, in the light-shielding mask according to the present invention, the light-shielding adjusting mechanism is covered by an external frame having the same shape as the base.
【００１４】また、本発明に係る遮光マスクが搭載され
た投写レンズを上下左右に複数個組み合わせて一つの大
画面を構成する投写型ディスプレイ装置とすることも可
能である。Further, a projection type display device which constitutes one large screen by combining a plurality of projection lenses on which the light-shielding mask according to the present invention is mounted vertically and horizontally can also be provided.
【００１５】投写型ディスプレイ装置の投写レンズの投
写光路を遮光する場合、遮光板の微調整のためには直線
方向と回転方向の両方向のスライド調整機構が必要とな
る。In the case where the projection optical path of the projection lens of the projection display device is shielded, a slide adjusting mechanism in both the linear direction and the rotating direction is required for fine adjustment of the light shielding plate.
【００１６】この両方向のスライド微調整を遮光板単体
にて可能とするために、本発明によれば、一対の案内板
と遮光板との摺動部機構において、摺動面である遮光板
の両端面に案内板間の距離を直径とする円弧形状を採用
することにより、上記直線方向および回転方向のいずれ
の方向にも支障なく遮光板の調整移動が可能となる。According to the present invention, in order to enable the fine adjustment of the sliding in both directions with the light shielding plate alone, in the sliding portion mechanism between the pair of guide plates and the light shielding plate, the light shielding plate as the sliding surface is provided. By adopting an arc shape having a diameter equal to the distance between the guide plates at both end surfaces, it is possible to adjust and move the light shielding plate in both the linear direction and the rotation direction.
【００１７】また、遮光板に取付けられて調整ボルトと
連結する連動板が、遮光板に対して揺動可能に一点支持
されており、遮光板の傾きに応じて自由度が与えられて
いるため、遮光板の調整移動を円滑に行なうことができ
る。Further, an interlocking plate attached to the light-shielding plate and connected to the adjustment bolt is supported at one point so as to be swingable with respect to the light-shielding plate, and is given a degree of freedom according to the inclination of the light-shielding plate. In addition, the adjustment movement of the light shielding plate can be performed smoothly.
【００１８】[0018]
【発明の実施の形態】以下、本発明に係る遮光マスクの
実施形態について、添付図面を参照しながら詳細に説明
する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a light-shielding mask according to the present invention will be described below in detail with reference to the accompanying drawings.
【００１９】図１は本発明に係る遮光マスクの構成を示
す外観斜視図、図２は本発明に係る遮光マスクの遮光調
整機構を示す拡大平面図、図３は本発明に係る遮光マス
クの作用を説明する正面図である。FIG. 1 is an external perspective view showing the structure of a light shielding mask according to the present invention, FIG. 2 is an enlarged plan view showing a light shielding adjusting mechanism of the light shielding mask according to the present invention, and FIG. FIG.
【００２０】図１に示すように、本発明に係る遮光マス
クは、投写レンズ５の形状に合わせて略円形状に穿孔さ
れたレンズ孔１１Ａを有する直方体状のベース１１の外
縁部に、ベース取付孔１１ａ，１１ｂ，１１ｃ，１１ｄ
がそれぞれ穿孔されており、ベース取付孔１１ａ，１１
ｂ，１１ｃ，１１ｄと、投写レンズ５の外枠に設けられ
た取付孔５ａ，５ｂ，５ｃ，５ｄとをネジ止め固定する
ことにより、遮光マスクを投写レンズ５の前面に着脱可
能に搭載することができるように構成されている。As shown in FIG. 1, the light-shielding mask according to the present invention has a base mounting portion formed on an outer edge of a rectangular parallelepiped base 11 having a lens hole 11A formed in a substantially circular shape in accordance with the shape of the projection lens 5. Holes 11a, 11b, 11c, 11d
Are respectively drilled, and the base mounting holes 11a, 11
b, 11c, 11d and mounting holes 5a, 5b, 5c, 5d provided in the outer frame of the projection lens 5 are fixed by screws, so that the light-shielding mask is detachably mounted on the front surface of the projection lens 5. It is configured to be able to.
【００２１】また、ベース１１上の所定箇所には、投写
レンズ５の光量を微調整するために、光学設計上、その
一端が滑らかな曲線状に形成された一枚の遮光板１２か
らなる遮光調整機構が具備されている。In order to finely adjust the amount of light of the projection lens 5 at a predetermined position on the base 11, a light shielding plate 12 is formed by a single light shielding plate 12 whose one end is formed into a smooth curved line due to optical design. An adjustment mechanism is provided.
【００２２】すなわち、ベース１１の一端には、遮光板
１２を摺動可能に支持するために、所定間隔離隔して配
置され、直方体状に形成された一対の案内板１３，１３
がボルトによりネジ止め固定されている。That is, at one end of the base 11, a pair of guide plates 13, 13 which are arranged at predetermined intervals and are formed in a rectangular parallelepiped shape so as to slidably support the light shielding plate 12.
Are fixed by screws with bolts.
【００２３】一方、ベース１１の他端および遮光板１２
表面には、所定間隔離隔して配置された一対のバネ掛け
ピン１４，１４がそれぞれ取付け固定され、バネ掛けピ
ン１４，１４にはスプリング等からなる弾性体１５が掛
止されることにより、遮光板１２は弾性体１５のバネ力
によりレンズ孔１１Ａ方向に引張り固定されている。On the other hand, the other end of the base 11 and the light shielding plate 12
A pair of spring hook pins 14, 14 arranged at a predetermined distance from each other are attached and fixed to the surface, and an elastic body 15 made of a spring or the like is hooked on the spring hook pins 14, 14, thereby shielding light. The plate 12 is pulled and fixed in the direction of the lens hole 11A by the spring force of the elastic body 15.
【００２４】また、遮光板１２を案内板１３，１３間で
直線方向および回転方向に摺動させるために、図２に示
すように、遮光板１２の両端面は案内板１３，１３間の
距離を直径とする円弧（φＤ）形状に面取り加工されて
おり、さらに、遮光板１２表面には、断面Ｌ字形状に形
成された一対の連動板１６，１６が遮光板１２の直線方
向（同図中、Ｘ軸方向で示す）および回転方向（同図
中、Ｚ軸方向）の移動に合わせて揺動し、常に案内板１
３，１３との平行状態を保つように、連動板１６，１６
の一辺１６−１，１６−１が一本の連動板カシメピン１
７，１７により一点支持されている。In order to slide the light shielding plate 12 between the guide plates 13 in the linear direction and the rotating direction, as shown in FIG. And a pair of interlocking plates 16, 16 formed in an L-shaped cross section on the surface of the light shielding plate 12, are chamfered into an arc (φD) shape having a diameter of Swinging in accordance with the movement in the middle and X-axis directions) and the rotation direction (the Z-axis direction in the figure), and always guide plate 1
The interlocking plates 16, 16 are kept parallel to
Side 16-1 and 16-1 are one interlocking plate caulking pin 1
One point is supported by 7,17.
【００２５】また、連動板１６，１６の他辺１６−２，
１６−２およびベース１１上に取付けられた内部フレー
ム１８側面には調整ボルト２０を挿通させるためのボル
ト孔１６ａ，１８ａがそれぞれ穿孔されており、調整ボ
ルト２０をボルト孔１８ａ，１６ａに順次挿通させてネ
ジ止め固定することにより、連動板１６と調整ボルト２
０とは連結されて、連動板１６と調整ボルト２０とが調
整ボルト２０の長さ方向に調整可能に取付け固定される
とともに、遮光板１２はベース１１上で平面度を保つよ
うに押し付け固定される。The other side 16-2 of the interlocking plates 16, 16
Bolt holes 16a, 18a for inserting adjustment bolts 20 are respectively formed in the side surfaces of the inner frame 18 mounted on the base 16-2 and the base 11, and the adjustment bolts 20 are sequentially inserted into the bolt holes 18a, 16a. By screwing and fixing, the interlocking plate 16 and the adjustment bolt 2
0, the interlocking plate 16 and the adjustment bolt 20 are attached and fixed so as to be adjustable in the length direction of the adjustment bolt 20, and the light shielding plate 12 is pressed and fixed on the base 11 so as to maintain flatness. You.
【００２６】なお、図１中、符号１９はベース１１と同
形に形成された外部フレーム、符号１９ａ，１９ｂ，１
９ｃ，１９ｄは外部フレーム１９に穿孔された取付孔で
あり、上記遮光調整機構を構成した後に、外部フレーム
の取付孔１９ａ，１９ｂ，１９ｃ，１９ｄ、ベース取付
孔１１ａ，１１ｂ，１１ｃ，１１ｄ、投写レンズの取付
孔５ａ，５ｂ，５ｃ，５ｄに順次ボルトを挿通させてネ
ジ止め固定することにより、遮光調整機構が外部フレー
ム１９に覆われて保護される構成とすることもできる。In FIG. 1, reference numeral 19 denotes an external frame formed in the same shape as the base 11, and reference numerals 19a, 19b, 1
Reference numerals 9c and 19d denote mounting holes formed in the outer frame 19, and after configuring the light shielding adjustment mechanism, mounting holes 19a, 19b, 19c and 19d of the external frame, base mounting holes 11a, 11b, 11c and 11d, and projection. By sequentially inserting bolts through the lens mounting holes 5a, 5b, 5c, and 5d and fixing them with screws, the light-shielding adjustment mechanism can be covered with the external frame 19 and protected.
【００２７】次に、上記構成からなる遮光マスクの作用
について、詳細に説明する。Next, the operation of the light-shielding mask having the above configuration will be described in detail.
【００２８】投写型ディスプレイ装置の投写レンズ５の
投写光路を遮光板１２により遮光する場合、遮光板１２
の微調整のためには直線方向（Ｘ軸方向）と回転方向
（Ｚ軸方向）の両方向のスライド調整機構が必要とな
る。When the light path of the projection lens 5 of the projection display apparatus is shielded by the light shielding plate 12, the light shielding plate 12
In order to finely adjust the distance, a slide adjustment mechanism in both the linear direction (X-axis direction) and the rotation direction (Z-axis direction) is required.
【００２９】本発明によれば、図２に示すように、一対
の案内板１３，１３と遮光板１２との摺動部機構におい
て、摺動面である遮光板１２の両端面に案内板１３，１
３間の距離を直径とする円弧（φＤ）形状を採用し、遮
光板１２に取付けられて調整ボルト２０，２０と連結す
る連動板１６，１６がそれぞれ遮光板１２に対して同図
中矢印Ｂ方向に揺動可能となるように連動板カシメピン
１７により一点支持され、遮光板１２の傾きに応じて揺
動し、常に案内板１３，１３との平行状態を保つような
自由度が与えられている。According to the present invention, as shown in FIG. 2, in the sliding portion mechanism between the pair of guide plates 13 and 13 and the light shielding plate 12, the guide plates 13 are provided on both end surfaces of the light shielding plate 12 which is a sliding surface. , 1
The interlocking plates 16, 16 attached to the light-shielding plate 12 and connected to the adjustment bolts 20, 20, respectively, adopt an arc B (see FIG. 3) in the drawing. A single point is supported by the interlocking plate caulking pin 17 so as to be able to swing in the direction, and swings in accordance with the inclination of the light shielding plate 12, and is provided with a degree of freedom to always maintain a parallel state with the guide plates 13. I have.
【００３０】したがって、図２，図３に示すように、調
整ボルト２０，２０のうちいずれか一方のみを回せば、
遮光板１２は、回転させた調整ボルト２０に連結された
連動板１６を支持する連動板カシメピン１７を軸とする
回転方向、すなわち、図２中Ｚ軸方向への移動が可能と
なり、また、調整ボルト２０，２０を同時に回せば、遮
光板１２は、回転させた調整ボルト２０に連結された連
動板１６に連動して調整ボルト２０の長さ方向、すなわ
ち、図２中Ｘ軸方向への移動が可能となる。Therefore, as shown in FIGS. 2 and 3, if only one of the adjusting bolts 20 is turned,
The light-shielding plate 12 can be moved in a rotation direction about an interlocking plate caulking pin 17 that supports the interlocking plate 16 connected to the rotated adjustment bolt 20, that is, in the Z-axis direction in FIG. If the bolts 20 are turned at the same time, the light shielding plate 12 moves in the length direction of the adjustment bolt 20, that is, in the X-axis direction in FIG. 2 in conjunction with the interlocking plate 16 connected to the rotated adjustment bolt 20. Becomes possible.
【００３１】このように、投写型ディスプレイ装置の投
写レンズ５の投写光路を遮光するための遮光調整機構に
おいて、遮光板１２の直線方向と回転方向の両方向のス
ライド微調整をいずれの方向にも支障なく、円滑に行な
うことが可能となるため、上記遮光マスク３０が搭載さ
れた投写型ディスプレイ装置を上下左右に複数個組み合
わせて一つの大画面を構成することもでき、大画面にお
ける各投写レンズ５から投写される光量の調整作業を簡
単かつ正確に行なうことができる。As described above, in the light-shielding adjustment mechanism for shielding the projection optical path of the projection lens 5 of the projection display device, fine adjustment of the slide of the light-shielding plate 12 in both the linear direction and the rotation direction is hindered in any direction. Therefore, a single large screen can be formed by combining a plurality of projection display devices on which the light-shielding mask 30 is mounted, vertically and horizontally, and each projection lens 5 on the large screen. The adjustment of the amount of light projected from the projector can be performed easily and accurately.
【００３２】また、各投写型ディスプレイ装置の光量の
微調整が利くため、大画面の画像における重複部分の画
面の明るさと周囲の画面の明るさとを調整すれば、合成
された大画面全体に均一な明るさを実現できる。Further, since the fine adjustment of the light amount of each projection display device is advantageous, if the brightness of the overlapping portion of the large screen image and the brightness of the surrounding screen are adjusted, the uniformity over the entire synthesized large screen can be obtained. Brightness can be realized.
【００３３】なお、上記実施形態においては、本発明に
係る遮光マスクを投写レンズに適用した例について説明
したが、撮影系レンズの遮光調整機構として適用するこ
とも可能である。In the above embodiment, an example is described in which the light-shielding mask according to the present invention is applied to a projection lens. However, the light-shielding mask may be applied as a light-shielding adjustment mechanism of a photographic lens.
【００３４】[0034]
【発明の効果】以上、詳細に説明したように、本発明に
係る遮光マスクによれば、以下のような効果を奏する。As described above, according to the light-shielding mask of the present invention, the following effects can be obtained.
【００３５】（１）一対の案内板と遮光板との摺動部機
構において、摺動面である遮光板の両端面に案内板間の
距離を直径とする円弧形状を採用し、遮光板に取付けら
れて調整ボルトと連結する連動板が、遮光板に対して揺
動可能に一点支持されており、遮光板の傾きに応じて自
由度が与えられているため、調整ボルトの長さ方向およ
び連動板を軸とする回転方向に調整を行なうことができ
る。(1) In the sliding portion mechanism between the pair of guide plates and the light shielding plate, an arc shape having a diameter equal to the distance between the guide plates is adopted on both end surfaces of the light shielding plate which is a sliding surface. The interlocking plate that is attached and connected to the adjustment bolt is pivotally supported at a single point with respect to the light shielding plate, and has a degree of freedom according to the inclination of the light shielding plate. Adjustment can be performed in the direction of rotation about the interlocking plate.
【００３６】（２）遮光板の調整移動を上記いずれの方
向にも支障なく、かつ、円滑に行なうことが可能とな
り、遮光マスクが搭載された投写型ディスプレイ装置を
上下左右に複数個組み合わせて一つの大画面を構成する
こともでき、大画面における各投写レンズから投写され
る光量の調整作業を簡単かつ正確に行なうことができ
る。(2) The adjustment movement of the light-shielding plate can be smoothly performed without any hindrance in any of the above-described directions, and a plurality of projection-type display devices equipped with a light-shielding mask are vertically and horizontally combined. Two large screens can be configured, and the adjustment of the amount of light projected from each projection lens on the large screen can be performed easily and accurately.
【００３７】（３）投写レンズに取付けられた遮光マス
クの調整ボルトを回転させるだけの簡単な作業で各投写
型ディスプレイ装置の光量の微調整を行なうことがで
き、大画面の画像における重複部分の画面の明るさと周
囲の画面の明るさとを調整すれば、合成された大画面全
体に均一な明るさを実現できる。(3) The light amount of each projection display device can be finely adjusted by a simple operation just by turning the adjustment bolt of the light shielding mask attached to the projection lens. By adjusting the brightness of the screen and the brightness of the surrounding screen, uniform brightness can be realized over the entire synthesized large screen.
【図１】本発明に係る遮光マスクの構成を示す外観斜視
図。FIG. 1 is an external perspective view showing a configuration of a light shielding mask according to the present invention.
【図２】本発明に係る遮光マスクの遮光調整機構を示す
拡大平面図。FIG. 2 is an enlarged plan view showing a light shielding adjustment mechanism of the light shielding mask according to the present invention.
【図３】本発明に係る遮光マスクの作用を説明する正面
図。FIG. 3 is a front view illustrating the operation of the light-shielding mask according to the present invention.
【図４】従来の投写型ディスプレイ装置の構成を示す断
面図。FIG. 4 is a cross-sectional view showing a configuration of a conventional projection display device.
【図５】図４における投写型ディスプレイ装置を用いて
大画面を構成する例を示す斜視図。FIG. 5 is an exemplary perspective view showing an example in which a large screen is configured using the projection display device in FIG. 4;
５ 投写レンズ ５ａ，５ｂ，５ｃ，５ｄ 取付孔 １１ ベース １１Ａ レンズ孔 １１ａ，１１ｂ，１１ｃ，１１ｄ ベース取付孔 １２ 遮光板 １３ 案内板 １４ バネ掛けピン １５ 弾性体（スプリング） １６ 連動板 １６−１ 連動板の一辺 １６−２ 連動板の他辺 １６ａ ボルト孔 １７ 連動板カシメピン １８ 内部フレーム １８ａ ボルト孔 １９ 外部フレーム １９ａ，１９ｂ，１９ｃ，１９ｄ 取付孔 ２０ 調整ボルト ３０ 遮光マスク 5 Projection Lens 5a, 5b, 5c, 5d Mounting Hole 11 Base 11A Lens Hole 11a, 11b, 11c, 11d Base Mounting Hole 12 Shielding Plate 13 Guide Plate 14 Spring Pin 15 Elastic Body (Spring) 16 Interlocking Plate 16-1 Interlocking One side of the plate 16-2 Other side of the interlocking plate 16a Bolt hole 17 Interlocking plate caulking pin 18 Internal frame 18a Bolt hole 19 External frame 19a, 19b, 19c, 19d Mounting hole 20 Adjustment bolt 30 Light shielding mask
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成１３年７月２３日（２００１．７．２
３）[Submission date] July 23, 2001 (2001.7.2)
3)
【手続補正１】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正２】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００９[Correction target item name] 0009
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【０００９】[0009]
【課題を解決するための手段】上記目的を達成するため
に、本発明に係る遮光マスクは、投写レンズ前面に着脱
可能に搭載される遮光マスクであって、上記投写レンズ
の形状に合わせて穿孔されたレンズ孔を有するベース
と、上記投写レンズの光量を微調整するための遮光調整
機構とを具備し、上記遮光調整機構は、上記ベースの一
端に所定間隔離隔して配置された一対の案内板間に摺動
可能に支持される遮光板と、上記ベースの他端に所定間
隔離隔して配置され、上記遮光板を引張り固定する弾性
体と、上記遮光板に取付けられた連動板に連結する調整
ボルトと、を具備し、上記遮光板の両端が上記案内板間
の距離を直径とする円弧形状に面取りされ、かつ、上記
連動板が上記遮光板に対して揺動可能に一点支持される
ことにより、上記遮光板が上記調整ボルトの長さ方向お
よび上記連動板を軸とする回転方向に調整可能に取付け
固定されていることを特徴とするものである。In order to achieve the above-mentioned object, a light-shielding mask according to the present invention is a light-shielding mask detachably mounted on a front surface of a projection lens, and has a perforated shape corresponding to the shape of the projection lens. a base having a lenses hole, comprising a light shielding adjustment mechanism for finely adjusting the amount of the projection lens, the light shielding adjustment mechanism of the base one
Sliding between a pair of guide plates arranged at a predetermined distance from each other
Between the light-shielding plate that is supported and the other end of the base for a predetermined distance
Elastic that is placed apart and tensions the light shield plate
Adjustment to connect to the body and the interlocking plate attached to the light shielding plate
And a bolt, wherein both ends of the light shielding plate are between the guide plates.
Chamfered into an arc shape whose diameter is the distance of
An interlocking plate is pivotally supported at one point with respect to the light shielding plate.
In this way, the light-shielding plate is
And can be adjusted in the direction of rotation about the interlocking plate
It is characterized by being fixed .
【手続補正３】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１０[Correction target item name] 0010
【補正方法】削除[Correction method] Deleted
【手続補正４】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１１[Correction target item name] 0011
【補正方法】削除[Correction method] Deleted
【手続補正５】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１２[Correction target item name] 0012
【補正方法】削除[Correction method] Deleted
【手続補正６】[Procedure amendment 6]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１３[Correction target item name] 0013
【補正方法】削除[Correction method] Deleted
【手続補正７】[Procedure amendment 7]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１４[Correction target item name] 0014
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【００１４】本発明に係る遮光マスクが搭載された投写
レンズを上下左右に複数個組み合わせて一つの大画面を
構成する投写型ディスプレイ装置とすることも可能であ
るが、投写型ディスプレイ装置の投写レンズの投写光路
を遮光する場合、遮光板の微調整のためには直線方向と
回転方向の両方向のスライド調整機構が必要となる。 [0014] While it is possible for the light-shielding mask according to the present invention is a projection type display device which constitutes one of the large screen by combining a plurality of onboard projection lens vertically and horizontally, a projection lens of the projection display device Projection light path
When light is shielded, use the linear
A slide adjustment mechanism in both directions of the rotation direction is required.
【手続補正８】[Procedure amendment 8]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】００１５[Correction target item name] 0015
【補正方法】削除[Correction method] Deleted
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ テーマコート゛(参考） Ｇ０３Ｂ 21/14 Ｇ０３Ｂ 21/14 Ｄ Ｈ０４Ｎ 5/74 Ｈ０４Ｎ 5/74 Ｚ Ｆターム(参考） 2H042 AA15 AA28 2H043 AB03 AB05 AB08 AB14 AB18 AB26 2H088 EA12 EA19 HA14 MA04 MA20 2H091 FA26X FA26Z FA34X FA41Z FD12 LA18 LA30 MA07 5C058 BA06 EA02 EA03 EA11 EA42──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. 7 Identification symbol FI Theme coat ゛ (Reference) G03B 21/14 G03B 21/14 D H04N 5/74 H04N 5/74 Z F-term (Reference) 2H042 AA15 AA28 2H043 AB03 AB05 AB08 AB14 AB18 AB26 2H088 EA12 EA19 HA14 MA04 MA20 2H091 FA26X FA26Z FA34X FA41Z FD12 LA18 LA30 MA07 5C058 BA06 EA02 EA03 EA11 EA42
Claims (6)
めの遮光マスクであって、上記投写レンズの形状に合わ
せて穿孔されたレンズ孔を有するベースと、上記投写レ
ンズの光量を微調整するために上記ベース上に摺動可能
に取付け固定された遮光板からなる遮光調整機構とを具
備することを特徴とする遮光マスク。1. A light-shielding mask for detachably mounting on a front surface of a projection lens, the base having a lens hole formed in accordance with the shape of the projection lens, and for finely adjusting the amount of light of the projection lens. A light shielding adjustment mechanism comprising a light shielding plate slidably mounted and fixed on the base.
光板を摺動可能に支持する一対の案内板と、 上記ベースの他端に所定間隔離隔して配置され、上記遮
光板を引張り固定する弾性体と、 上記遮光板を摺動可能に取付け固定するために、遮光板
に取付けられた連動板に連結する調整ボルトとを具備す
ることを特徴とする請求項１に記載の遮光マスク。2. The light-shielding adjusting mechanism is disposed at one end of the base at a predetermined distance from a pair of guide plates for slidably supporting the light-shielding plate, and at a predetermined distance from the other end of the base. An elastic body that is disposed in such a manner as to pull and fix the light shielding plate, and an adjusting bolt that is connected to an interlocking plate attached to the light shielding plate to slidably attach and fix the light shielding plate. The light shielding mask according to claim 1.
を直径とする円弧形状に面取りされ、かつ、上記連動板
が上記遮光板に対して揺動可能に一点支持されるととも
に、上記遮光板が上記調整ボルトの長さ方向および上記
連動板を軸とする回転方向に調整可能に取付け固定され
ていることを特徴とする請求項２に記載の遮光マスク。3. Both ends of the light-shielding plate are chamfered into an arc shape having a diameter equal to a distance between the guide plates, and the interlocking plate is pivotally supported at one point with respect to the light-shielding plate. The light-shielding mask according to claim 2, wherein the light-shielding plate is attached and fixed so as to be adjustable in a length direction of the adjustment bolt and in a rotation direction about the interlocking plate as an axis.
とを特徴とする請求項１に記載の遮光マスク。4. The light-shielding mask according to claim 1, wherein the projection lens is a photographing lens.
外部フレームにより覆われていることを特徴とする請求
項１乃至請求項４に記載の遮光マスク。5. The light-shielding mask according to claim 1, wherein the light-shielding adjustment mechanism is covered by an external frame having the same shape as the base.
を上下左右に複数個組み合わせて一つの大画面を構成す
ることを特徴とする投写型ディスプレイ装置。6. A projection display device comprising a plurality of projection lenses on which said light-shielding mask is mounted, which are vertically and horizontally combined to form one large screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142038A JP3225243B1 (en) | 2001-05-11 | 2001-05-11 | Shading mask |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001142038A JP3225243B1 (en) | 2001-05-11 | 2001-05-11 | Shading mask |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP3225243B1 JP3225243B1 (en) | 2001-11-05 |
| JP2002341433A true JP2002341433A (en) | 2002-11-27 |
Family
ID=18988406
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001142038A Expired - Fee Related JP3225243B1 (en) | 2001-05-11 | 2001-05-11 | Shading mask |
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| Country | Link |
|---|---|
| JP (1) | JP3225243B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107367893B (en) * | 2017-09-15 | 2023-07-07 | 北京威视安业科技有限公司 | Optical fusion device and projection equipment |
| CN117929282B (en) * | 2024-03-25 | 2024-06-11 | 国家海洋技术中心 | Rotary shade for underwater optical sensor |
-
2001
- 2001-05-11 JP JP2001142038A patent/JP3225243B1/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP3225243B1 (en) | 2001-11-05 |
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