JPS6451926U - - Google Patents
Info
- Publication number
- JPS6451926U JPS6451926U JP14635687U JP14635687U JPS6451926U JP S6451926 U JPS6451926 U JP S6451926U JP 14635687 U JP14635687 U JP 14635687U JP 14635687 U JP14635687 U JP 14635687U JP S6451926 U JPS6451926 U JP S6451926U
- Authority
- JP
- Japan
- Prior art keywords
- document
- screen
- optical axis
- document table
- condensing lens
- 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
- 238000005286 illumination Methods 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図は本考案に係る透過型オーバーヘツドプ
ロジエクタの原稿台と集光レンズ及び反射鏡の位
置関係を示す概略側面図であり、第２図Ａ，Ｂは
上記プロジエクタとスクリーンとの位置関係を示
す概略的な平面図及び正面図である。第３図は原
稿台に対し集光レンズと反射鏡を平行移動自在と
した本考案に係るプロジエクタを示す概略斜視図
である。第４図は４倍の原稿台とスクリーンを有
するプロジエクタを示す概略側面図である。第５
図Ａ，Ｂは従来のプロジエクタとスクリーンとの
位置関係を示す概略的な平面図及び正面図である
。
１……原稿台、２……照明光源、３……装置本
体、４……集光レンズ、５……スクリーン、６…
…反射鏡。
FIG. 1 is a schematic side view showing the positional relationship between the document table, the condensing lens, and the reflecting mirror of the transmission type overhead projector according to the present invention, and FIGS. 2A and 2B are the positional relationships between the projector and the screen. FIG. 2 is a schematic plan view and a front view. FIG. 3 is a schematic perspective view showing a projector according to the present invention in which a condensing lens and a reflecting mirror are movable in parallel with respect to a document table. FIG. 4 is a schematic side view showing a projector having a four-fold document table and a screen. Fifth
Figures A and B are a schematic plan view and front view showing the positional relationship between a conventional projector and a screen. 1... Original table, 2... Illumination light source, 3... Apparatus main body, 4... Condensing lens, 5... Screen, 6...
…Reflector.
Claims (1)
になされた照明光源と、 上記原稿を透過した光をスクリーンに投影して
原稿の像をスクリーン上に結像させるための集光
レンズと反射鏡とを有し、 上記集光レンズと上記反射鏡によつて形成され
る光軸と上記原稿台の中心軸および上記光軸と上
記スクリーンの投影面の中心とがずれるようにな
されるとともに、上記光軸と上記原稿台の面およ
び上記光軸と上記スクリーンの投影面とがなす角
を略直角としたことを特徴とする透過型オーバー
ヘツドプロジエクタ。[Scope of Claim for Utility Model Registration] A document table on which a document is placed, an illumination light source arranged below the document to illuminate the document, and a light source that projects light transmitted through the document onto a screen. a condensing lens and a reflecting mirror for forming an image of the original on a screen; an optical axis formed by the condensing lens and the reflecting mirror, a central axis of the document table, and the light beam; The optical axis and the center of the projection surface of the screen are offset from each other, and the angles formed by the optical axis and the surface of the document table and the angles formed by the optical axis and the projection surface of the screen are substantially right angles. Transparent overhead projector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14635687U JPS6451926U (en) | 1987-09-28 | 1987-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14635687U JPS6451926U (en) | 1987-09-28 | 1987-09-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6451926U true JPS6451926U (en) | 1989-03-30 |
Family
ID=31415765
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14635687U Pending JPS6451926U (en) | 1987-09-28 | 1987-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451926U (en) |
-
1987
- 1987-09-28 JP JP14635687U patent/JPS6451926U/ja active Pending
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