JPH03160426A - Projector device - Google Patents

Projector device

Info

Publication number
JPH03160426A
JPH03160426A JP1301047A JP30104789A JPH03160426A JP H03160426 A JPH03160426 A JP H03160426A JP 1301047 A JP1301047 A JP 1301047A JP 30104789 A JP30104789 A JP 30104789A JP H03160426 A JPH03160426 A JP H03160426A
Authority
JP
Japan
Prior art keywords
images
image
frame image
screen
circumference
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
Application number
JP1301047A
Other languages
Japanese (ja)
Other versions
JP2819695B2 (en
Inventor
Ryuji Takauchi
龍治 高内
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu General Ltd
Original Assignee
Fujitsu General Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fujitsu General Ltd filed Critical Fujitsu General Ltd
Priority to JP1301047A priority Critical patent/JP2819695B2/en
Publication of JPH03160426A publication Critical patent/JPH03160426A/en
Application granted granted Critical
Publication of JP2819695B2 publication Critical patent/JP2819695B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Projection Apparatus (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

PURPOSE:To allow the distinct discrimination of the formed images and circumference of even the projector system of a front type and to improve audio visual environment by projecting the intrinsic images and the light image to form a frame image enclosing the circumference of the intrinsic images on a screen. CONSTITUTION:Signals of R (red) images, G (green) images and B (blue) images are respectively inputted to projecting tubes 11 to 13 and while the projecting light rays of the corresponding R, G, B colors are scanned perpendicularly by a vertical synchronizing signal V and a horizontal synchronizing signal H, the light rays are scanned horizontally and the images of the respective colors R, G, B are thereby synthesized on the surface of the reflection type screen 2. The color images are thus formed on the surface of the reflection type screen 2 and are reflected. The levels of the signals R, G, B inputted to the projecting tubs 11 to 13 are fixed at prescribed levels in the vertical blanking period and horizontal blanking period so that the frame image 22 is projected to the circumference of the intrinsic images 21 projected on the reflection type screen 2. The intrinsic images 21 and the visual recognizing environment of the circumference are distinctly discriminated by the frame image 22 in this way and the more easily visible images 21 are formed.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、光画像を投射してスクリーン上に結像させる
プロジェクタ装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a projector device that projects an optical image and forms the image on a screen.

〔従来の技術〕[Conventional technology]

プロジェクタシステムとして、反射型スクリーンの前方
にプロジェクタ装置を設置して、そのプロジェクタ装置
から光画像を投射してその反射型スクリーン面に結像さ
せるフロントタイプのものと、透過型スクリーンにその
背面からプロジェクタ装置より・光画像を投射して、そ
の透過型スクリーンに結像させるリアタイプのものがあ
る.後者のリアタイプのものは、通常ではシステム全体
が箱体内に収納されるので、透過型スクl八−ンの周囲
を例えば黒色のベゼルで囲むことが行われ、その透過型
スクリーンに結像される画像を周囲と明確に区別できる
There are two types of projector systems: a front type, in which a projector device is installed in front of a reflective screen, and a light image is projected from the projector device and formed on the surface of the reflective screen; From the device: There is a rear type that projects a light image and forms it on a transmissive screen. In the latter rear type, the entire system is usually housed in a box, so the transmissive screen is surrounded by a black bezel, for example, and the image is formed on the transmissive screen. images can be clearly distinguished from their surroundings.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

ところが、前者のフロントタイプのものは、反射型スク
リーンの周囲に余白が残ったり、叉はそこが壁或いは空
間である場合がほとんどであり、このため結像画像と周
囲との区別が明確でなくなり、その画像が見ずらいとい
う問題があった。
However, with the former front type, there is often a blank space around the reflective screen, or the space is a wall or space, making it difficult to clearly distinguish between the image formed and the surroundings. , there was a problem that the image was difficult to view.

本発明の目的は、フロントタイプのプロジェクタシステ
ムにおいても、結像画像と周囲とが明確に区別できるよ
うにして、視聴環境を向上させるようにしたプロジェク
タ装置を提供することである。
An object of the present invention is to provide a projector device that improves the viewing environment by making it possible to clearly distinguish between a formed image and the surroundings even in a front-type projector system.

〔課題を解決するための手段〕[Means to solve the problem]

このために本発明は、光画像をスクリーン上に投射して
、該スクリーン上に画像を結像させるプロジエクタ装置
において、上記スクリーン上に本来の画像及び該本来の
画像の周囲を囲む枠画像を結像させる光画像を投射する
ように構威した。
To this end, the present invention provides a projector device that projects an optical image onto a screen and forms the image on the screen, in which an original image and a frame image surrounding the original image are formed on the screen. It was designed to project a light image.

〔実施例〕〔Example〕

以下、本発明の実施例について説明する。第l図はその
一実施例のフロントタイプのプロジェクタシステムの例
を示す図である。lはプロジェクタ装置であり、3個の
投射管を使用する方式のものが使用される。2は反射型
のスクリーンであり、天井からの吊り下げ、スタンドに
よる起立、壁面ヘの吊り下げ等により、該プロジエクタ
装置1のレンズの合焦点位置にくるように設定される。
Examples of the present invention will be described below. FIG. 1 is a diagram showing an example of a front type projector system according to one embodiment. 1 is a projector device that uses three projection tubes. Reference numeral 2 denotes a reflective screen, which is set to be at the focal point of the lens of the projector device 1 by hanging it from the ceiling, standing up on a stand, hanging it on a wall, or the like.

第2図はこのプロジェクタ装置1の投射管11〜13を
示す図であり、この投射管11〜13にはR(赤)画像
、G(緑)画像、B(青)画像の信号が各々人力して、
対応すRGBの色の投射光が垂直同期信号■、水平同期
信号Hにより垂直方向に走査されながら水平方向に走査
され、これによりRGBの各色の画像が反射型スクリー
ン2の面で合威されて、カラー画像がその反射型スクリ
ーン2の面に結像され、反射される。
FIG. 2 is a diagram showing the projection tubes 11 to 13 of this projector device 1. Signals for an R (red) image, a G (green) image, and a B (blue) image are transmitted manually to the projection tubes 11 to 13, respectively. do,
The projected lights of the corresponding RGB colors are scanned in the vertical direction and horizontally by the vertical synchronization signal ■ and the horizontal synchronization signal H, so that the images of each RGB color are combined on the surface of the reflective screen 2. , a color image is formed on the surface of the reflective screen 2 and reflected.

本実施例では、この投射管11〜13に入力させるRG
Bの信号のレベルを垂直プランキング期間、水平プラン
キング期間において所定レベルに固定し、これにより反
射型スクリーン2に映し出される本来の画像21の周囲
に枠画像22を投射するようにした。この結果、この枠
画像22により本来の画像21と周囲の視認環境とが明
確に区別され画像21が見易くなる。
In this embodiment, the RG input to the projection tubes 11 to 13 is
The level of the B signal is fixed at a predetermined level during the vertical planking period and the horizontal planking period, thereby projecting a frame image 22 around the original image 21 projected on the reflective screen 2. As a result, the frame image 22 clearly distinguishes the original image 21 from the surrounding viewing environment, making the image 21 easier to see.

第3図はこの枠画像22をB(青〉色で形成するための
RGB信号のタイもングチャートである.まず、枠画像
22の内の上部分22aは、垂直プランキング期間の内
の時間T1の間だけ、B信号のみを全水平走査期間に亘
って一定の値に設定して形成する。次に、枠画像22の
内の左右部分22b、22cについては、本来の画像2
1の領域の時間T2において、水平プランキング期間の
内の最初の時間T21、最後の時間T22の間だけ、B
信号のみを上記の一定の値に設定して形成する.更に、
枠画像22の内の下部分22dについては、垂直プラン
キング期間の内の時間T3の間だけ、B信号のみを全水
平走査期間に亘って上記した一定の値に設定して形成す
る。以上から、画像2lを囲む枠画像22がB(青)色
で形成されることになる。
FIG. 3 is a timing chart of RGB signals for forming this frame image 22 in the color B (blue). First, the upper part 22a of the frame image 22 is displayed at the time within the vertical planking period. Only during T1, only the B signal is set to a constant value over the entire horizontal scanning period.Next, regarding the left and right portions 22b and 22c of the frame image 22, the original image 2
At time T2 in the region 1, B only during the first time T21 and the last time T22 of the horizontal planking period.
Form by setting only the signal to the above constant value. Furthermore,
The lower portion 22d of the frame image 22 is formed by setting only the B signal to the above-mentioned constant value over the entire horizontal scanning period only during the time T3 of the vertical planking period. From the above, the frame image 22 surrounding the image 2l is formed in B (blue) color.

なお、この枠画像22の色は、上記したようにその部分
を走査する期間のRGB信号のレベル設定により任意の
色に選択できる.また、同様の処理によりこの枠画像2
2を任意の線叉は色の模様により形成することも当然な
がら可能となる.本実施例では、画像21の周囲に枠画
像22を形成しているので、予めこの枠画像22が結像
される反射型スクリーンの縁部に、光センサを設けてお
き、該光センサが検出すべきパターンを枠画像22とし
て投射すれば、反射型スクリーン2に対するプロジェク
タ本体1の各投射管11〜13のコンバーゼンスを、上
記した光センサで検出した信号により自動的に行わせる
ことも可能となる。
Note that the color of this frame image 22 can be selected to any color by setting the levels of the RGB signals during the period during which the portion is scanned, as described above. Also, by similar processing, this frame image 2
Of course, it is also possible to form 2 with any wire or color pattern. In this embodiment, since the frame image 22 is formed around the image 21, an optical sensor is provided in advance at the edge of the reflective screen on which the frame image 22 is formed, and the optical sensor detects the By projecting the desired pattern as a frame image 22, it becomes possible to automatically converge the projection tubes 11 to 13 of the projector main body 1 with respect to the reflective screen 2 using the signal detected by the above-mentioned optical sensor. .

また、本実施例では反射型スクリーンを使用する場合に
ついて説明したが、透過型スクリーンを使用する場合に
も同様に適用できることは勿論である。
Furthermore, although this embodiment has been described with reference to the case where a reflective screen is used, it goes without saying that the present invention can be similarly applied to a case where a transmissive screen is used.

〔発明の効果〕 以上説明したように本発明のプロジェクタ装置によれば
、スクリーンに結像される本来の画像の周囲に枠画像が
結像されるので、その本来の画像が枠画像によりスクリ
ーンの外側と明確に区別され、画像が見易くなるという
利点がある.また、枠画像の結像されるスクリーンの部
分に光センサを設けると共に枠画像を所定のパターンに
設定すると、コンバーゼンス調整用の信号を光センサか
ら得ることができるという利点もある。
[Effects of the Invention] As explained above, according to the projector device of the present invention, a frame image is formed around the original image formed on the screen. This has the advantage that it is clearly distinguished from the outside, making the image easier to see. Further, by providing a photosensor in the part of the screen where the frame image is formed and setting the frame image in a predetermined pattern, there is an advantage that a signal for convergence adjustment can be obtained from the photosensor.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例のフロントタイプのプロジエ
クタシステムの説明図、第2図はプロジェクタ装置の投
射管の説明図、第3図は枠画像形成のためのタイミング
チャートである。 1・・・プロジエクタ装置、1l〜13・・・投射管、
2・・・反射型スクリーン、21・・・本来の画像、2
2・・・枠画像。
FIG. 1 is an explanatory diagram of a front type projector system according to an embodiment of the present invention, FIG. 2 is an explanatory diagram of a projection tube of the projector device, and FIG. 3 is a timing chart for frame image formation. 1... Projector device, 1l to 13... Projection tube,
2... Reflective screen, 21... Original image, 2
2...Frame image.

Claims (3)

【特許請求の範囲】[Claims] (1)、光画像をスクリーン上に投射して、該スクリー
ン上に画像を結像させるプロジェクタ装置において、上
記スクリーン上に本来の画像及び該本来の画像の周囲を
囲む枠画像を結像させる光画像を投射するようにしたこ
とを特徴とするプロジェクタ装置。
(1) In a projector device that projects a light image onto a screen and forms the image on the screen, light that forms an original image and a frame image surrounding the original image on the screen. A projector device characterized in that it projects an image.
(2)、上記枠画像を所定の色や模様で形成することを
特徴とする特許請求の範囲第1項記載のプロジェクタ装
置。
(2) The projector device according to claim 1, wherein the frame image is formed in a predetermined color or pattern.
(3)、上記スクリーンの上記枠画像が結像される部分
に光センサを配備し、上記枠画像を所定のパターンで形
成し、該所定のパターンの画像の一部を上記光センサで
検出して該検出信号をコンバーゼンス調整用信号とした
ことを特徴とする特許請求の範囲第1項記載のプロジェ
クタ装置。
(3) An optical sensor is provided in a portion of the screen where the frame image is formed, the frame image is formed in a predetermined pattern, and a part of the image of the predetermined pattern is detected by the optical sensor. 2. The projector device according to claim 1, wherein the detection signal is used as a convergence adjustment signal.
JP1301047A 1989-11-20 1989-11-20 Projector device Expired - Fee Related JP2819695B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1301047A JP2819695B2 (en) 1989-11-20 1989-11-20 Projector device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1301047A JP2819695B2 (en) 1989-11-20 1989-11-20 Projector device

Publications (2)

Publication Number Publication Date
JPH03160426A true JPH03160426A (en) 1991-07-10
JP2819695B2 JP2819695B2 (en) 1998-10-30

Family

ID=17892224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1301047A Expired - Fee Related JP2819695B2 (en) 1989-11-20 1989-11-20 Projector device

Country Status (1)

Country Link
JP (1) JP2819695B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6018331A (en) * 1996-12-04 2000-01-25 Nec Corporation Frame display control in an image display having a liquid crystal display panel
JP2007295049A (en) * 2006-04-21 2007-11-08 Casio Comput Co Ltd Projector, and video image projection method and program
JP2010503886A (en) * 2006-09-14 2010-02-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Laser projector with warning light
CN113709433A (en) * 2021-08-26 2021-11-26 歌尔光学科技有限公司 Method, device and equipment for detecting brightness of projection picture and computer storage medium
CN113709433B (en) * 2021-08-26 2024-07-30 歌尔光学科技有限公司 Method, device, equipment and computer storage medium for detecting brightness of projection picture

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215640A (en) * 1982-06-10 1983-12-15 Canon Inc Reader printer
JPS6293203U (en) * 1985-11-27 1987-06-15
JPS63245076A (en) * 1987-03-31 1988-10-12 Matsushita Electric Ind Co Ltd Television receiver
JPH02150186A (en) * 1988-12-01 1990-06-08 Sony Corp High-definition projection tv screen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58215640A (en) * 1982-06-10 1983-12-15 Canon Inc Reader printer
JPS6293203U (en) * 1985-11-27 1987-06-15
JPS63245076A (en) * 1987-03-31 1988-10-12 Matsushita Electric Ind Co Ltd Television receiver
JPH02150186A (en) * 1988-12-01 1990-06-08 Sony Corp High-definition projection tv screen

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6018331A (en) * 1996-12-04 2000-01-25 Nec Corporation Frame display control in an image display having a liquid crystal display panel
JP2007295049A (en) * 2006-04-21 2007-11-08 Casio Comput Co Ltd Projector, and video image projection method and program
JP4720595B2 (en) * 2006-04-21 2011-07-13 カシオ計算機株式会社 Projector, video projection method and program
JP2010503886A (en) * 2006-09-14 2010-02-04 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Laser projector with warning light
CN113709433A (en) * 2021-08-26 2021-11-26 歌尔光学科技有限公司 Method, device and equipment for detecting brightness of projection picture and computer storage medium
CN113709433B (en) * 2021-08-26 2024-07-30 歌尔光学科技有限公司 Method, device, equipment and computer storage medium for detecting brightness of projection picture

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JP2819695B2 (en) 1998-10-30

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