JPH0365879A - Camera incorporating projection display function - Google Patents
Camera incorporating projection display functionInfo
- Publication number
- JPH0365879A JPH0365879A JP1200203A JP20020389A JPH0365879A JP H0365879 A JPH0365879 A JP H0365879A JP 1200203 A JP1200203 A JP 1200203A JP 20020389 A JP20020389 A JP 20020389A JP H0365879 A JPH0365879 A JP H0365879A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- camera
- projection display
- light valve
- crystal light
- 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.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 18
- 238000003384 imaging method Methods 0.000 claims description 7
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 24
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000001454 recorded image Methods 0.000 description 1
Classifications
-
- 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
- H04N9/3173—Constructional details thereof wherein the projection device is specially adapted for enhanced portability
- H04N9/3176—Constructional details thereof wherein the projection device is specially adapted for enhanced portability wherein the projection device is incorporated in a camera
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Cameras In General (AREA)
- Liquid Crystal (AREA)
- Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
- Projection Apparatus (AREA)
- Transforming Electric Information Into Light Information (AREA)
Abstract
Description
【発明の詳細な説明】
（発明の属する技術分野）
本発明はレンズ系により結像した被写体像をエリアセン
サにより撮像するカメラにおいて、その撮像手段に加え
て投影表示手段を一筐体内に一体に収容してなる投影表
示機能一体型カメラに関する。Detailed Description of the Invention (Technical field to which the invention pertains) The present invention relates to a camera that uses an area sensor to image a subject image formed by a lens system, in which a projection display means is integrated in a single housing in addition to the imaging means. The present invention relates to a camera with an integrated projection display function.
（従来の技術）
従来、レンズ系により結像した被写体像をエリアセンサ
を用いて撮像する画像入力技術として、ビデオカメラが
普及している。(Prior Art) Video cameras have been widely used as an image input technology for capturing a subject image formed by a lens system using an area sensor.
このビデオカメラは小型・軽量化が進み手軽に持ち運べ
るため、設置場所を固定することなく。This video camera is small and lightweight, making it easy to carry, so you don't need to set it in a fixed location.
いつ何処においてでも容易に撮像が可能となってきた。It has become possible to easily take images anytime and anywhere.
このような従来のビデオカメラで撮像した画像を再生す
る場合は、録画したビデオテープをビデオカメラから取
り出し、これをビデオデツキ等の再生装置に入れて、こ
れより再生信号を取り出し、これをＣＲＴなどの表示装
置に入力して画像の再生を行っている。To play back images captured with such a conventional video camera, remove the recorded videotape from the video camera, insert it into a playback device such as a video deck, extract the playback signal from it, and transfer it to a CRT or other playback device. The image is played back by inputting it to the display device.
最近、再生機能を一体化したビデオカメラが発売されて
いるが、この場合にはカメラからの再生信号をそのまま
表示装置に入力している。Recently, video cameras with an integrated playback function have been released, but in this case, the playback signal from the camera is directly input to the display device.
（発明が解決しようとする課題）
上記従来のビデオカメラでは録画して画像を再生する場
合には必ずＣＲＴ等の表示装置が必要となっていた。こ
のため、例えば旅先等での外出先で録画した画像を宿泊
先ですぐに再生して見たい場合が生じても、表示装置が
なければ再生できないという問題があった。(Problems to be Solved by the Invention) The conventional video camera described above always requires a display device such as a CRT when recording and playing back images. For this reason, there is a problem in that even if a person wants to immediately play back an image recorded while away from home, such as while traveling, at a place where the user is staying, the user cannot play back the image without a display device.
また、仮に通常のテレビ受像機等の表示装置が設置され
ていても、接続端子の規格が一致しないときにはケーブ
ルを接続できずやはり再生ができない。Furthermore, even if a normal display device such as a television receiver is installed, if the specifications of the connection terminals do not match, the cable cannot be connected and playback cannot be performed.
また、従来のビデオカメラのなかには２〜３インチ程度
の小さな表示装置が一体化されている場合もあるが、こ
れは撮像時のモニタ用であって解像度は極めて小さく、
また白黒である場合が多く、観賞用としては全く画品質
が不十分である。In addition, some conventional video cameras are integrated with a small display device of about 2 to 3 inches, but this is used for monitoring when taking images, and the resolution is extremely low.
Furthermore, they are often black and white, and the image quality is completely inadequate for viewing purposes.
（発明の目的）
本発明は上記従来のビデオカメラの欠点を解決するため
、投影表示機能を一体化し、ビデオテープに録画した画
像をＣＲＴ等の表示装置が設置されていない場合におい
ても高品質画像で再生しうろことを目的とする。(Object of the Invention) In order to solve the above-mentioned drawbacks of the conventional video camera, the present invention integrates a projection display function to display high-quality images even when a display device such as a CRT is not installed. The purpose is to play with scales.
（課題を解決するための手段）
本発明は上記目的は達成するため、第１図に本発明の基
本構成図を示すように投影用のレンズ１は別に設けるこ
となく既存の撮像用のレンズ１を共用する。これを可能
にするためカメラ内のレンズ１の後方に光学的手段を用
いた光路分割手段２を備える。そして分割された一方の
光路上の結像面位置にはエリアセンサ３を配置する。ま
た、他方の分割された光路上には投影表示装置等で用い
られている小面積の液晶ライトバルブ４を配置する。こ
の液晶ライトバルブ４の後方には投影用の光源５を配置
したものである。(Means for Solving the Problems) In order to achieve the above object, the present invention does not require the projection lens 1 to be provided separately, as shown in FIG. 1, which is a basic configuration diagram of the present invention. to share. To make this possible, an optical path splitting means 2 using optical means is provided behind the lens 1 in the camera. An area sensor 3 is placed at the imaging plane position on one of the divided optical paths. Further, on the other divided optical path, a small-area liquid crystal light valve 4 used in a projection display device or the like is arranged. A projection light source 5 is arranged behind the liquid crystal light valve 4.
（作 用）
上述の手段を用いれば、１台のビデオカメラで撮像と投
影表示による再生が可能になる。すなわち、再生を行う
場合は録画したビデオテープからの再生信号を液晶ライ
トバルブ４に入力し、後方の光源５から液晶ライトバル
ブ４を照射すればよい。照射光はレンズ１を通してカメ
ラの外に出るが、この光が液晶ライトバルブに出力され
た画像をカメラから一定の距離において拡大像として結
像するため、投影表示が可能になる。(Function) By using the above-mentioned means, it becomes possible to capture an image and reproduce it by projection display using one video camera. That is, when performing playback, a playback signal from a recorded video tape may be input to the liquid crystal light valve 4, and the liquid crystal light valve 4 may be illuminated from the light source 5 at the rear. The irradiation light exits the camera through the lens 1, and this light forms an enlarged image of the image output to the liquid crystal light valve at a certain distance from the camera, making projection display possible.
一方、撮像はエリアセンサ３により通常のビデオカメラ
と同様に行うことができる。したがって、撮像してビデ
オテープに録画した画像は直ちに投影表示機能により高
品質な画像として再生することができる。On the other hand, imaging can be performed using the area sensor 3 in the same way as a normal video camera. Therefore, images captured and recorded on videotape can be immediately reproduced as high-quality images using the projection display function.
（実施例） 夫厳箆よ 本発明の第１の実施例の構成を第２図に示す。(Example) Hugen Seki! The configuration of the first embodiment of the present invention is shown in FIG.
第２図において１１はレンズ、１２はハーフミラ−１３
はＣＣＤエリアセンサ、１４は液晶ライトバルブ、１５
は光源、１６は信号処理回路、１７はビデオテープ、１
８は記録用磁気ヘッド、１９は再生用磁気ヘッド、２０
は信号再生回路、２１はビデオ信号出力端子である。In Fig. 2, 11 is a lens, 12 is a half mirror 13
is a CCD area sensor, 14 is a liquid crystal light valve, 15 is
1 is a light source, 16 is a signal processing circuit, 17 is a video tape, 1
8 is a recording magnetic head, 19 is a reproducing magnetic head, 20
2 is a signal reproducing circuit, and 21 is a video signal output terminal.
本実施例ではハーフミラ−１２を光路分割手段として使
用した。ＣＣＤエリアセンサ１３には２／３インチ系の
インタライン方式の３８万画素ＣＣＤセンサを使用した
。液晶ライトバルブ１４は単純マトリクス方式とし大き
さを２０ｍＸ１５■１画素数を４００ Ｘ ３００とし
た。この液晶ライトバルブ１４の１辺の長さはＣＣＤエ
リアセンサ１３のイメージエリアに比べ約２倍となって
いる。このためレンズ１１から液晶ライトバルブ１４ま
での光路長は、レンズ１１からＣＣＤエリアセンサ１３
までの光路長に比べ２倍となっている。In this embodiment, a half mirror 12 was used as the optical path splitting means. As the CCD area sensor 13, a 2/3 inch interline type 380,000 pixel CCD sensor was used. The liquid crystal light valve 14 was of a simple matrix type and had a size of 20 m x 15 cm and a pixel count of 400 x 300. The length of one side of this liquid crystal light valve 14 is approximately twice as long as the image area of the CCD area sensor 13. Therefore, the optical path length from the lens 11 to the liquid crystal light valve 14 is from the lens 11 to the CCD area sensor 13.
The optical path length is twice that of the previous one.
レンズ１１より入射してくる光はハーフミラ−１２を通
過しＣＣＤエリアセンサ１３面上に被写体像を結像する
。撮像時には、従来のビデオカメラと同様にこの被写体
像をＣＣＤエリアセンサ１３で光電変換し、光電変換さ
れた画信号を信号処理回路１６で必要な処理を行った後
、記録用ヘッド１８によりビデオテープ１７に記録する
。The light incident from the lens 11 passes through the half mirror 12 and forms a subject image on the surface of the CCD area sensor 13. When capturing an image, the subject image is photoelectrically converted by the CCD area sensor 13 in the same way as in a conventional video camera, and the photoelectrically converted image signal is subjected to necessary processing in the signal processing circuit 16, and then recorded on a video tape by the recording head 18. Recorded on 17th.
一方、ビデオテープ１７に記録した画信号を再生すると
きは、再生用ヘッド１９でビデオテープ１７がら画信号
を読み出し、これを信号再生回路２ｏに入れ、適当な信
号処理を行った後、液晶ライトバルブ１４に入力する。On the other hand, when reproducing an image signal recorded on the video tape 17, the reproducing head 19 reads out the image signal from the video tape 17, inputs it into the signal reproducing circuit 2o, performs appropriate signal processing, and then displays the image signal on the liquid crystal display. input to valve 14;
これと同期させて液晶ライトバルブ内に内蔵されている
駆動回路で走査を行えば、液晶表示面に再生画像が表示
される。光源１５からの光はこの再生画像をハーフミラ
−１２で反射させてレンズ１１に入れ、カメラ外に投影
像を表示させる。If a drive circuit built into the liquid crystal light valve performs scanning in synchronization with this, a reproduced image is displayed on the liquid crystal display screen. The light from the light source 15 reflects this reproduced image by the half mirror 12 and enters the lens 11, so that the projected image is displayed outside the camera.
このように本実施例では投影表示が可能なほか、ビデオ
出力端子２１からの信号を用いれば従来のビデオカメラ
と同様にＣＲＴでの表示も可能である。In this way, in addition to being capable of projection display in this embodiment, by using the signal from the video output terminal 21, display on a CRT is also possible in the same way as a conventional video camera.
失凰夏至 本発明の第２の実施例の構成を第３図に示す。summer solstice FIG. 3 shows the configuration of a second embodiment of the present invention.
第３図において２２および２３はミラー、２４は補助レ
ンズである。本実施例では光路分割手段としてミラーの
回転を利用した。すなわち、撮像時にはミラー２２を図
の実線の位置に配置し、レンズ１１からの光を直進させ
、ＣＣＤエリアセンサ１３面上に被写体像を結像させる
。In FIG. 3, 22 and 23 are mirrors, and 24 is an auxiliary lens. In this embodiment, rotation of a mirror was used as the optical path splitting means. That is, at the time of imaging, the mirror 22 is placed at the position indicated by the solid line in the figure, and the light from the lens 11 is made to travel straight to form a subject image on the surface of the CCD area sensor 13.
一方、投影表示をする場合は、ミラー２２を図の破線の
位置まで回転させる。そして、光：ｇ１５から発し、液
晶ライトバルブ１４．ミラー２３．補助レンズ２４を通
過してきた光をこのミラー２２で反射させてレンズ１１
の外に出して投影像を表示する。On the other hand, for projection display, the mirror 22 is rotated to the position indicated by the broken line in the figure. And light: emitted from g15, liquid crystal light valve 14. Mirror 23. The light that has passed through the auxiliary lens 24 is reflected by this mirror 22 and is reflected by the lens 11.
to display the projected image.
本実施例では液晶ライトバルブ１４をアクティブマトリ
クス方式として大きさを３０ｍＸ２３ｍ、１１素数を６
００ Ｘ ４００とした。１辺の長さは前記第２図に示
す実施例１に比べ大きくなっており、このため本実施例
では、液晶ライトバルブ１４上の表示エリアとレンズ１
１の光学系サイズの整合をとるため補助レンズ２４を使
用した。In this embodiment, the liquid crystal light valve 14 is of an active matrix type, the size is 30 m x 23 m, and the prime number of 11 is 6.
00 x 400. The length of one side is larger than that of Embodiment 1 shown in FIG.
An auxiliary lens 24 was used to match the size of the optical system.
本実施例においてＣＣＤエリアセンサ１３を取り込んだ
画像をビデオテープ１７に録画する方法、およびビデオ
テープ１７に録画した画像を液晶ライトバルブ１４に表
示する方法は前記第１の実施例で用いた方法と同じであ
る。In this embodiment, the method of recording the image captured by the CCD area sensor 13 on the videotape 17 and the method of displaying the image recorded on the videotape 17 on the liquid crystal light valve 14 are the same as the method used in the first embodiment. It's the same.
なお１本実施例でのビデオ出力端子２１からの信号を用
いれば従来のビデオカメラと同様にＣＲＴでの表示を可
能としている。Note that if the signal from the video output terminal 21 in this embodiment is used, it is possible to display on a CRT in the same way as a conventional video camera.
以上は本発明の２つの実施例を示したに留まり、本発明
の精神を逸脱することなく種々の変更が可能であること
は言うまでもない０例えば、上記実施例では撮像素子に
ＣＣＤエリアセンサを使用したがＣＣＤエリアセンサの
代わりにＭＯ８型エリアセンサや、あるいは小型撮像管
の使用も可能であり、撮像素子の種類に関係なく本発明
を実施できることは明らかである。The above describes only two embodiments of the present invention, and it goes without saying that various changes can be made without departing from the spirit of the present invention.For example, in the above embodiments, a CCD area sensor is used as the image sensor. However, instead of the CCD area sensor, it is also possible to use an MO8 type area sensor or a small image pickup tube, and it is clear that the present invention can be practiced regardless of the type of image pickup device.
また、上記実施例では投影表示用の表示デバイスとして
液晶ライトバルブを使用したが、投影表示用として使用
できるものであれば表示デバイスの種類に関係な〈実施
できる。Further, in the above embodiment, a liquid crystal light valve was used as a display device for projection display, but any type of display device that can be used for projection display may be used.
さらに、本発明は最近普及され始めているエリアセンサ
で静止画を撮像しこの画像をフロッピディスクに記録す
る電子スチルカメラにおいても同様に適用可能である。Furthermore, the present invention can be similarly applied to electronic still cameras that capture still images using area sensors and record the images on floppy disks, which have recently become popular.
なお、上記実施例では本発明のカメラで入力した画像を
表示する例について述べたが、別のカメラで撮像した画
像を記録したテープやフロッピーディスク等、からの画
像の表示や、テレビチューナに接続してテレビ画像の表
示等、通常のデイスプレィとしての使用も可能である。In the above embodiment, an example was described in which images inputted by the camera of the present invention are displayed, but it is also possible to display images from a tape or floppy disk that records images captured by another camera, or to connect to a TV tuner. It can also be used as a normal display, such as displaying television images.
（発明の効果）
以上説明したように本発明は、第１図の基本構成図に示
すように従来のビデオカメラに新たに液晶ライトバルブ
と光源と光路分割手段を付加するのみで、撮像と投影表
示ができる簡単な構成である。(Effects of the Invention) As explained above, the present invention enables imaging and projection by simply adding a liquid crystal light valve, a light source, and an optical path splitting means to a conventional video camera as shown in the basic configuration diagram of FIG. It has a simple configuration that can be displayed.
本発明のビデオカメラを用いると再生装置やＣＲＴ等の
表示装置が設置されていない場所に匿いても録画した画
像を白い紙や壁、あるいは襖等を利用して何処でも高品
質な画像で再生することができる。By using the video camera of the present invention, recorded images can be played back with high quality anywhere using white paper, walls, sliding doors, etc. even if hidden in a place where a playback device or display device such as a CRT is not installed. can do.
また、従来のビデオカメラの構成に新たに液晶ライトバ
ルブと光源と光路分割手段を追加するが。Additionally, a new liquid crystal light valve, light source, and optical path splitting means are added to the configuration of a conventional video camera.
これらの重量はビデオカメラ全体の重量に比べればはる
かに軽いこと、および従来のビデオ力、ミラでは全重量
のうちレンズの重量が占める割合がきわめて大きいが本
発明では表示用として新たにレンズを用いず撮像用を共
有している等の理由から、本発明のビデオカメラは従来
のビデオカメラと同様に手軽に持ち運びが可能な程度の
重量で実現できる。These weights are much lighter than the weight of the entire video camera, and in the conventional video camera and Mira, the weight of the lens accounts for an extremely large proportion of the total weight, but in the present invention, a new lens is used for display purposes. The video camera of the present invention can be realized with a weight that allows it to be easily carried like a conventional video camera, because the video camera uses a shared imaging device.
第１図は本発明の基本構成図、第２図は本発明の第１の
実施例の構成図、第３図は本発明の第２の実施例の構成
図である。
１．１１・・・レンズ、 ２・・・光路分割手段、３
・・・エリアセンサ、 ４，１４・・・液晶ライトバル
ブ、 ５，１５・・・光源、１２・・・ハーフミラ−１
３・・・ＣＣＤエリアセンサ、１６・・・信号処理回路
、１７・・・ビデオテープ、１８・・・記録用磁気ヘッ
ド、１９・・・再生用磁気ヘッド、２０・・・信号再生
回路、２１・・・ビデオ信号出力端子、２２、２３・・
・ ミラー、２４・・・補助レンズ。FIG. 1 is a basic block diagram of the present invention, FIG. 2 is a block diagram of a first embodiment of the present invention, and FIG. 3 is a block diagram of a second embodiment of the present invention. 1.11... Lens, 2... Optical path splitting means, 3
...Area sensor, 4,14...Liquid crystal light valve, 5,15...Light source, 12...Half mirror-1
3... CCD area sensor, 16... Signal processing circuit, 17... Video tape, 18... Magnetic head for recording, 19... Magnetic head for reproduction, 20... Signal reproducing circuit, 21 ...Video signal output terminal, 22, 23...
・Mirror, 24...Auxiliary lens.
Claims (1)
撮像するカメラにおいて、光路分割手段を介して配置さ
れた投影表示手段が、前記撮像手段のレンズ系を共用す
るように配置されことを特徴とする投影表示機能一体型
カメラ。A camera that images a subject image formed by a lens system using an area sensor, wherein a projection display means arranged via an optical path splitting means is arranged so as to share the lens system of the imaging means. Camera with integrated display function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200203A JPH0365879A (en) | 1989-08-03 | 1989-08-03 | Camera incorporating projection display function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1200203A JPH0365879A (en) | 1989-08-03 | 1989-08-03 | Camera incorporating projection display function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0365879A true JPH0365879A (en) | 1991-03-20 |
Family
ID=16420518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1200203A Pending JPH0365879A (en) | 1989-08-03 | 1989-08-03 | Camera incorporating projection display function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0365879A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4312653A1 (en) * | 1992-04-17 | 1993-10-21 | Gold Star Co | Video camera system with viewfinder and projector function |
| DE4312652A1 (en) * | 1992-04-17 | 1993-10-21 | Gold Star Co | Video camera system and method for displaying a video signal therein |
| US5528297A (en) * | 1992-01-29 | 1996-06-18 | Deutsche Thomson-Brant Gmbh | Convertible video camera/projector |
| JPH08304751A (en) * | 1995-05-01 | 1996-11-22 | Nec Corp | Liquid crystal projection device |
| JP2003015218A (en) * | 2001-07-03 | 2003-01-15 | Ricoh Co Ltd | Projection display device |
| JP2003044839A (en) * | 2001-07-26 | 2003-02-14 | Nitto Kogaku Kk | Device for inputting and outputting image |
| EP1813982A1 (en) * | 2004-11-19 | 2007-08-01 | Nikon Corporation | Projector device and mobile telephone |
| WO2009010099A1 (en) * | 2007-07-18 | 2009-01-22 | Osram Gesellschaft mit beschränkter Haftung | Device having a camera function and an image projection function |
| WO2009117939A1 (en) * | 2008-03-26 | 2009-10-01 | 清华大学深圳研究生院 | Dual-purpose optical lens module for projection and image pickup |
| JP2010171699A (en) * | 2009-01-22 | 2010-08-05 | Fujinon Corp | Imaging apparatus with projection display function and portable photography projector |
| US7891826B2 (en) | 2004-09-21 | 2011-02-22 | Nikon Corporation | Projector |
| JP2011145641A (en) * | 2010-01-18 | 2011-07-28 | Ability Enterprise Co Ltd | Photographic and projection device |
| US8147066B2 (en) | 2004-09-21 | 2012-04-03 | Nikon Corporation | Portable information device having a projector and an imaging device |
| JP2015028655A (en) * | 2014-09-24 | 2015-02-12 | セイコーエプソン株式会社 | Projector |
| JP2016114925A (en) * | 2014-12-15 | 2016-06-23 | テスト リサーチ， インク． | Optical system and image compensation method for optical device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207073A (en) * | 1986-03-07 | 1987-09-11 | Canon Inc | Video equipment |
| JPH0213071A (en) * | 1988-06-30 | 1990-01-17 | Matsushita Electric Ind Co Ltd | Camera unifying type video tape recorder |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62207073A (en) * | 1986-03-07 | 1987-09-11 | Canon Inc | Video equipment |
| JPH0213071A (en) * | 1988-06-30 | 1990-01-17 | Matsushita Electric Ind Co Ltd | Camera unifying type video tape recorder |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5528297A (en) * | 1992-01-29 | 1996-06-18 | Deutsche Thomson-Brant Gmbh | Convertible video camera/projector |
| DE4312653A1 (en) * | 1992-04-17 | 1993-10-21 | Gold Star Co | Video camera system with viewfinder and projector function |
| DE4312652A1 (en) * | 1992-04-17 | 1993-10-21 | Gold Star Co | Video camera system and method for displaying a video signal therein |
| JPH08304751A (en) * | 1995-05-01 | 1996-11-22 | Nec Corp | Liquid crystal projection device |
| JP2003015218A (en) * | 2001-07-03 | 2003-01-15 | Ricoh Co Ltd | Projection display device |
| JP4620909B2 (en) * | 2001-07-26 | 2011-01-26 | 日東光学株式会社 | Image input / output device |
| JP2003044839A (en) * | 2001-07-26 | 2003-02-14 | Nitto Kogaku Kk | Device for inputting and outputting image |
| US8147066B2 (en) | 2004-09-21 | 2012-04-03 | Nikon Corporation | Portable information device having a projector and an imaging device |
| US7891826B2 (en) | 2004-09-21 | 2011-02-22 | Nikon Corporation | Projector |
| EP1813982A4 (en) * | 2004-11-19 | 2010-04-21 | Nikon Corp | Projector device and mobile telephone |
| US7798656B2 (en) | 2004-11-19 | 2010-09-21 | Nikon Corporation | Projector device and portable telephone |
| EP1813982A1 (en) * | 2004-11-19 | 2007-08-01 | Nikon Corporation | Projector device and mobile telephone |
| WO2009010099A1 (en) * | 2007-07-18 | 2009-01-22 | Osram Gesellschaft mit beschränkter Haftung | Device having a camera function and an image projection function |
| WO2009117939A1 (en) * | 2008-03-26 | 2009-10-01 | 清华大学深圳研究生院 | Dual-purpose optical lens module for projection and image pickup |
| JP2010171699A (en) * | 2009-01-22 | 2010-08-05 | Fujinon Corp | Imaging apparatus with projection display function and portable photography projector |
| JP2011145641A (en) * | 2010-01-18 | 2011-07-28 | Ability Enterprise Co Ltd | Photographic and projection device |
| JP2015028655A (en) * | 2014-09-24 | 2015-02-12 | セイコーエプソン株式会社 | Projector |
| JP2016114925A (en) * | 2014-12-15 | 2016-06-23 | テスト リサーチ， インク． | Optical system and image compensation method for optical device |
| US9686517B2 (en) | 2014-12-15 | 2017-06-20 | Test Research, Inc. | Optical system and image compensating method of optical apparatus |
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