JPH0369139U - - Google Patents
Info
- Publication number
- JPH0369139U JPH0369139U JP13140189U JP13140189U JPH0369139U JP H0369139 U JPH0369139 U JP H0369139U JP 13140189 U JP13140189 U JP 13140189U JP 13140189 U JP13140189 U JP 13140189U JP H0369139 U JPH0369139 U JP H0369139U
- Authority
- JP
- Japan
- Prior art keywords
- screen
- projection device
- image projection
- rectangle
- length
- 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
Landscapes
- Overhead Projectors And Projection Screens (AREA)
Description
第１図は本考案の第１実施例による画像投影装
置用スクリーンの概略正面図、第２図はリーダー
プリンタの側面からみた概略断面図、第３図、第
４図はそれぞれ本考案の第２実施例、第３実施例
による画像投影装置用スクリーンの概略正面図、
第５図は従来の画像投影装置用スクリーンの概略
正面図である。
７……スクリーン、ｌ，ｌ……マーク。
FIG. 1 is a schematic front view of a screen for an image projection device according to a first embodiment of the present invention, FIG. 2 is a schematic sectional view of a reader printer seen from the side, and FIGS. Example, a schematic front view of a screen for an image projection device according to a third example,
FIG. 5 is a schematic front view of a conventional screen for an image projection device. 7...Screen, l, l...mark.
Claims (1)
ある長方形の対角線に相当するマークを表示する
ことを特徴とする画像投影装置用スクリーン。 (2) 前記長方形の縦横の長さの比が１対√２で
あることを特徴とする請求項１記載の画像投影装
置用スクリーン。[Claims for Utility Model Registration] (1) A screen for an image projection device, characterized in that a mark corresponding to the diagonal of a rectangle having a length-to-width ratio of a predetermined value is displayed on the screen. (2) The screen for an image projection device according to claim 1, wherein the ratio of length and width of the rectangle is 1:√2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13140189U JPH0369139U (en) | 1989-11-10 | 1989-11-10 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13140189U JPH0369139U (en) | 1989-11-10 | 1989-11-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0369139U true JPH0369139U (en) | 1991-07-09 |
Family
ID=31678912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13140189U Pending JPH0369139U (en) | 1989-11-10 | 1989-11-10 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0369139U (en) |
-
1989
- 1989-11-10 JP JP13140189U patent/JPH0369139U/ja active Pending