JPH0446435U - - Google Patents
Info
- Publication number
- JPH0446435U JPH0446435U JP8884190U JP8884190U JPH0446435U JP H0446435 U JPH0446435 U JP H0446435U JP 8884190 U JP8884190 U JP 8884190U JP 8884190 U JP8884190 U JP 8884190U JP H0446435 U JPH0446435 U JP H0446435U
- Authority
- JP
- Japan
- Prior art keywords
- fresnel lens
- guide posts
- flat plate
- mounting frame
- side plate
- 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
- 238000005452 bending Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Overhead Projectors And Projection Screens (AREA)
- Transforming Electric Information Into Light Information (AREA)
Description
第１図は本考案の一実施例を示す画像表示用ス
クリーン装置の斜視図、第２図はレンチキユラー
レンズとフレネルレンズの取り付け状態を示す画
像表示用スクリーン装置の上面からみた概念図で
ある。
１……上部取り付け枠、２，１２……前面側板
、３，４，１３，１４……側板、５，６，１５，
１６……後部側板、７，８，９，１０……ガイド
ポスト、１１……下部取り付け枠、１７……レン
チキユラーレンズ、１８……フレネルレンズ。
FIG. 1 is a perspective view of an image display screen device showing an embodiment of the present invention, and FIG. 2 is a conceptual diagram seen from the top of the image display screen device showing how a lenticular lens and a Fresnel lens are attached. . 1... Upper mounting frame, 2, 12... Front side plate, 3, 4, 13, 14... Side plate, 5, 6, 15,
16... Rear side plate, 7, 8, 9, 10... Guide post, 11... Lower mounting frame, 17... Lenticular lens, 18... Fresnel lens.
Claims (1)
取り付け枠と下部取り付け枠と、同上部取り付け
枠と下部取り付け枠間を連結した２本の第１ガイ
ドポストと２本の第２ガイドポストとからなり、
前記２本の第１ガイドポストを上部取り付け枠と
下部取り付け枠の長手方向の前面側板と平行して
平板の長手方向の両端に位置するように設けて、
前記前面側板と２本の第１ガイドポスト間でレン
チキユラーレンズの左右の両端部分を挾持して固
定し、前記２本の第２ガイドポストを上部取り付
け枠と下部取り付け枠の長手方向の後部側板と平
行して平板の長手方向の両端より中央側に位置す
るように設けて、前記平板の短辺方向に設けられ
た側板と前記後部側板とのコーナに各々フレネル
レンズの左右両端を突き当てるようにしてフレネ
ルレンズを定置せしめ、前記２本の第２ガイドポ
ストで同フレネルレンズの左右両端を前面に押し
出すようにしてフレネルレンズ面を支えて略弓状
に撓ませて、前記レンチキユラーレンズ面に前記
フレネルレンズ面を密着させることを特徴とする
画像表示用スクリーン装置。 (2) 前記平板の短辺方向に設けられた側板のす
くなくとも一方を着脱自由にしたことを特徴とす
る請求項(1)記載の画像表示用スクリーン装置。 (3) 前記上部取り付け枠の平板面と前記フレネ
ルレンズの上端部分間に空間を設けたことを特徴
とする請求項(1)記載の画像表示用スクリーン装
置。[Claims for Utility Model Registration] (1) An upper mounting frame and a lower mounting frame each having a side plate on each side of a rectangular flat plate, and two first guide posts connecting the upper and lower mounting frames. and two second guide posts,
The two first guide posts are provided so as to be located at both ends of the flat plate in the longitudinal direction in parallel with the front side plates in the longitudinal direction of the upper mounting frame and the lower mounting frame,
Both left and right end portions of the lenticular lens are clamped and fixed between the front side plate and the two first guide posts, and the two second guide posts are attached to the longitudinal rear portions of the upper and lower mounting frames. A Fresnel lens is provided parallel to the side plate so as to be located toward the center from both ends in the longitudinal direction of the flat plate, and both left and right ends of the Fresnel lens are abutted against the corners of the side plate and the rear side plate provided in the short side direction of the flat plate, respectively. In this way, the Fresnel lens is fixed, and the two second guide posts push both left and right ends of the Fresnel lens to the front, supporting the Fresnel lens surface and bending it into a substantially arched shape. An image display screen device, characterized in that the Fresnel lens surface is brought into close contact with the surface. (2) The image display screen device according to claim (1), wherein at least one of the side plates provided in the short side direction of the flat plate is detachable. (3) The image display screen device according to claim (1), wherein a space is provided between the flat plate surface of the upper mounting frame and the upper end portion of the Fresnel lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8884190U JPH0446435U (en) | 1990-08-24 | 1990-08-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8884190U JPH0446435U (en) | 1990-08-24 | 1990-08-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0446435U true JPH0446435U (en) | 1992-04-20 |
Family
ID=31822410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8884190U Pending JPH0446435U (en) | 1990-08-24 | 1990-08-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0446435U (en) |
-
1990
- 1990-08-24 JP JP8884190U patent/JPH0446435U/ja active Pending
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