JPH046041U

JPH046041U -

Info

Publication number: JPH046041U
Application number: JP4574990U
Authority: JP
Priority date: 1990-04-26
Filing date: 1990-04-26
Publication date: 1992-01-21

Description

[Brief explanation of the drawing]

第１図ないし第１２図は本考案の一実施例を示
す図であり、第１図はオーバーヘツドプロジエク
タを収納したケースの側面図、第２図は第１図中
の−矢視断面図、第３図はスクリーンの断面
図、第４図は下部ケースを示す第２図中のＮ−Ｎ
矢視断面図、第５図は投影時のオーバーヘツドプ
ロジエクタを示す側面図、第６図はケースの解放
時の斜視図、第７図ないし第９図はその他のスピ
ーカの取付け構造を示す側面図、第１０図は投影
レンズを示す側面断面図、第１１図は位置補正用
レンズを示す側面断面図、第１２図はその他の位
置補正用レンズの装着例を示す側面断面図、第１
３図および第１４図は従来のオーバーヘツドプロ
ジエクタの各例の斜視図、第１５図はこれらに使
用される液晶表示体の斜視図、第１６図は液晶パ
ネルの内部構造の断面図、第１７図は他の従来の
オーバーヘツドプロジエクタの斜視図である。１０……オーバーヘツドプロジエクタ（ＯＨＰ
）、１１……ケース、１４……スクリーン、１８
……スクリーン保護部材、３５……投影レンズ、
３８……位置補正用レンズ。 1 to 12 are views showing one embodiment of the present invention, in which FIG. 1 is a side view of a case housing an overhead projector, and FIG. 2 is a sectional view taken along the - arrow in FIG. 1. , Figure 3 is a cross-sectional view of the screen, and Figure 4 shows the lower case from N-N in Figure 2.
5 is a side view showing the overhead projector during projection, FIG. 6 is a perspective view when the case is released, and FIGS. 7 to 9 are side views showing other speaker mounting structures. 10 is a side sectional view showing the projection lens, FIG. 11 is a side sectional view showing the position correction lens, and FIG. 12 is a side sectional view showing an example of mounting other position correction lenses.
3 and 14 are perspective views of examples of conventional overhead projectors, FIG. 15 is a perspective view of a liquid crystal display used in these, FIG. 16 is a sectional view of the internal structure of the liquid crystal panel, and FIG. FIG. 17 is a perspective view of another conventional overhead projector. 10... Overhead projector (OHP
), 11...Case, 14...Screen, 18
... Screen protection member, 35 ... Projection lens,
38...Lens for position correction.

Claims

[Claims for Utility Model Registration] (1) In an overhead projector housed in a portable case, the case is provided with a screen for projecting an optical image, and the screen is protected so as to be layered with the screen when the projector is housed. An overhead projector characterized by being provided with a member. (2) In an overhead projector that is housed in a portable case, the case is provided with a screen for projecting an optical image, and a position correction lens is detachable or movable from the projection lens that projects the optical image onto the screen. An overhead projector characterized by being provided with a.