JPH046039U - - Google Patents
Info
- Publication number
- JPH046039U JPH046039U JP4574690U JP4574690U JPH046039U JP H046039 U JPH046039 U JP H046039U JP 4574690 U JP4574690 U JP 4574690U JP 4574690 U JP4574690 U JP 4574690U JP H046039 U JPH046039 U JP H046039U
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- overhead projector
- air
- light source
- 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
- 238000009423 ventilation Methods 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims 1
- 238000007599 discharging Methods 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図および第２図は本考案によるオーバーヘ
ツドプロジエクタの第１実施例を示す断面図およ
び斜視図、第３図はそのガイド部材を示す概略図
、第４図は本考案の第２実施例を示す断面図、第
５図は本考案の第３実施例を示す断面図、第６図
は本考案の第４実施例を示す断面図、第７図は本
考案の第５実施例を示す断面図、第８図は本考案
の第６実施例を示す断面図、第９図は本考案の第
７実施例を示す断面図である。第１０図および第
１１図は従来のオーバーヘツドプロジエクタをそ
れぞれ示す斜視図、第１２図は液晶表示体の一例
を示す斜視図である。
１……オーバーヘツドプロジエクタ、２……ハ
ウジング、４……光源、６，２７……フアン（送
風手段）、２０……液晶表示体、２１……液晶パ
ネル、２２……ケース（通風路）、２３……排気
口、２４……仕切室（通風路）、２６……空間（
通風路）。
1 and 2 are a sectional view and a perspective view showing a first embodiment of an overhead projector according to the present invention, FIG. 3 is a schematic diagram showing a guide member thereof, and FIG. 4 is a second embodiment of the present invention. FIG. 5 is a cross-sectional view showing the third embodiment of the present invention, FIG. 6 is a cross-sectional view showing the fourth embodiment of the present invention, and FIG. 7 is a cross-sectional view showing the fifth embodiment of the present invention. 8 is a sectional view showing a sixth embodiment of the present invention, and FIG. 9 is a sectional view showing a seventh embodiment of the present invention. 10 and 11 are perspective views showing a conventional overhead projector, respectively, and FIG. 12 is a perspective view showing an example of a liquid crystal display. DESCRIPTION OF SYMBOLS 1...Overhead projector, 2...Housing, 4...Light source, 6, 27...Fan (ventilation means), 20...Liquid crystal display, 21...Liquid crystal panel, 22...Case (ventilation path) , 23...Exhaust port, 24...Partition room (ventilation path), 26...Space (
ventilation ducts).
Claims (1)
体の透過光によつて液晶画像を投影するオーバー
ヘツドプロジエクタにおいて、前記液晶表示体と
光源とにかけて空気が流れるように設けられた通
風路と、前記光源から液晶表示体へ流れる方向の
空気を前記通風路に供給する送風手段とを備えて
いることを特徴とするオーバーヘツドプロジエク
タ。 (2) 前記送風手段は、前記液晶表示体から光源
へ流れる方向の空気を通風路に供給するように設
けられていることを特徴とする請求項第(1)項記
載のオーバーヘツドプロジエクタ。 (3) 前記通風路の終端に空気を外部に放出する
排気口が設けられていることを特徴とする請求項
第(1)項または第(2)項記載のオーバーヘツドプロ
ジエクタ。[Claims for Utility Model Registration] (1) In an overhead projector that projects a liquid crystal image by irradiating light from a light source onto a liquid crystal display and transmitting light from the liquid crystal display, 1. An overhead projector comprising: a ventilation passage provided to allow air to flow; and a blowing means for supplying air to the ventilation passage in a direction in which air flows from the light source to the liquid crystal display. (2) The overhead projector according to claim (1), wherein the ventilation means is provided to supply air in a direction flowing from the liquid crystal display toward the light source to the ventilation passage. (3) The overhead projector according to claim (1) or (2), wherein an exhaust port for discharging air to the outside is provided at an end of the ventilation path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4574690U JPH046039U (en) | 1990-04-26 | 1990-04-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4574690U JPH046039U (en) | 1990-04-26 | 1990-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH046039U true JPH046039U (en) | 1992-01-21 |
Family
ID=31560197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4574690U Pending JPH046039U (en) | 1990-04-26 | 1990-04-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH046039U (en) |
-
1990
- 1990-04-26 JP JP4574690U patent/JPH046039U/ja active Pending
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