JPH0241244U - - Google Patents
Info
- Publication number
- JPH0241244U JPH0241244U JP12013788U JP12013788U JPH0241244U JP H0241244 U JPH0241244 U JP H0241244U JP 12013788 U JP12013788 U JP 12013788U JP 12013788 U JP12013788 U JP 12013788U JP H0241244 U JPH0241244 U JP H0241244U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- stage
- image
- translucent
- crystal display
- 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
- 239000004973 liquid crystal related substance Substances 0.000 claims description 7
- 239000011521 glass Substances 0.000 claims description 6
- 230000006870 function Effects 0.000 claims 3
- 230000001678 irradiating effect Effects 0.000 claims 1
- 230000001568 sexual effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Description
第１図は本考案のオーバーヘツドプロジエクタ
ーの一実施例とその周辺装置を示す概略構成図で
ある。第２図は本実施例の要部を説明するための
概略構成図である。第３図は本考案の一実施例の
制御回路系のブロツク図である。
１４……透光性ステージ、１５……光源、１７
……投映レンズ、１８……屈折レンズ、１６……
液晶デイスプレイ、２５……上部ガラス板、２６
……下部ガラス板、１９……画像メモリ、２０…
…イメージ信号入力部、２１……ＬＣＤ駆動部、
２２……ＯＨＰ制御部、２４……中央制御部。
FIG. 1 is a schematic diagram showing an embodiment of the overhead projector of the present invention and its peripheral equipment. FIG. 2 is a schematic configuration diagram for explaining the main parts of this embodiment. FIG. 3 is a block diagram of a control circuit system according to an embodiment of the present invention. 14...Translucent stage, 15...Light source, 17
...Projection lens, 18...Refraction lens, 16...
Liquid crystal display, 25... Upper glass plate, 26
... lower glass plate, 19 ... image memory, 20 ...
...image signal input section, 21...LCD drive section,
22... OHP control section, 24... Central control section.
Claims (1)
置面を有する透光性ステージと、該透光性ステー
ジ上の原像を該透光性ステージを介して照射する
光源と、前記透光性ステージの上方に配設されて
いる投映レンズと、前記透光性ステージと前記光
源との間に配設されていて該光源からの光線を前
記投映レンズに集光させる屈折レンズとを備えて
なるオーバーヘツドプロジエクターにおいて、前
記透光性ステージの前記載置面と前記屈折レンズ
との間に透過性の液晶デイスプレイを配備してい
ることを特徴とするオーバーヘツドプロジエクタ
ー。 ２ 前記液晶デイスプレイは前記投映レンズ側に
位置する上部ガラス板と、前記屈折レンズ側に位
置する下部ガラス板と、これら両ガラス板との間
に封止してなる液晶部材とを備えており、上記透
光性ステージは前記上部ガラス板と兼用されてい
ることを特徴とする請求項１記載のオーバーヘツ
ドプロジエクター。 ３ 前記オーバーヘツドプロジエクターは、イメ
ージを格納する画像メモリと、該画像メモリに格
納するためのイメージ信号の供給を受けるイメー
ジ信号入力部と、前記液晶デイスプレイを駆動す
るＬＣＤ駆動部と、前記透光性ステージと前記投
映レンズの相対距離を調節するＯＨＰ制御部と、
前記イメージ信号入力部からのイメージ信号を前
記画像メモリに格納する機能、前記ＬＣＤ駆動部
を制御して前記画像メモリ内のイメージ信号を前
記液晶デイスプレイに表示する機能、及び前記Ｏ
ＨＰ制御部を制御する機能をそれぞれ実行する中
央制御部と、を備えていることを特徴とする請求
項１又は２記載のオーバーヘツドプロジエクター
。[Claims for Utility Model Registration] 1. A translucent stage having a mounting surface for placing a translucent sheet having an original image thereon, and irradiating the original image on the translucent stage through the translucent stage. a projection lens disposed above the translucent stage; and a projection lens disposed between the translucent stage and the light source to condense light from the light source onto the projection lens. A transparent liquid crystal display is provided between the mounting surface of the translucent stage and the refracting lens. Ector. 2. The liquid crystal display includes an upper glass plate located on the projection lens side, a lower glass plate located on the refractive lens side, and a liquid crystal member sealed between both glass plates, 2. An overhead projector according to claim 1, wherein said light-transmitting stage also serves as said upper glass plate. 3. The overhead projector includes an image memory for storing an image, an image signal input section receiving an image signal to be stored in the image memory, an LCD driving section for driving the liquid crystal display, and an LCD driving section for driving the liquid crystal display. an OHP control unit that adjusts the relative distance between the sexual stage and the projection lens;
a function of storing an image signal from the image signal input section in the image memory; a function of controlling the LCD driving section to display the image signal in the image memory on the liquid crystal display;
3. The overhead projector according to claim 1, further comprising a central control section that respectively executes a function of controlling the HP control section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12013788U JPH0241244U (en) | 1988-09-13 | 1988-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12013788U JPH0241244U (en) | 1988-09-13 | 1988-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0241244U true JPH0241244U (en) | 1990-03-22 |
Family
ID=31365978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12013788U Pending JPH0241244U (en) | 1988-09-13 | 1988-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241244U (en) |
-
1988
- 1988-09-13 JP JP12013788U patent/JPH0241244U/ja active Pending
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