JPS62155582U

JPS62155582U -

Info

Publication number: JPS62155582U
Application number: JP4285486U
Authority: JP
Priority date: 1986-03-24
Filing date: 1986-03-24
Publication date: 1987-10-02

Description

[Brief explanation of the drawing]

第１図〜第７図はこの考案の一実施例を示した
もので、第１図は液晶プロジエクタの縦断側面図
、第２図は第１図の―線に沿う断面図、第３
図および第４図はリニアフレネルレンズの正面図
および側面図、第５図は液晶表示パネルに設けら
れる三原色カラーフイルタの正面図、第６図およ
び第７図はリニアフレネルレンズを透過した光の
方向を示す横方向および上方向から見た説明図で
ある。第８図はこの考案の他の実施例を示す液晶
プロジエクタの縦断側面図、第９図は第８図の
―線に沿う断面図である。第１０図は従来の液
晶プロジエクタの縦断側面図、第１１図は第１０
図の―線に沿う断面図である。１……液晶表示パネル、１ａ……表示部、２…
…光源部、３……光源ランプ、４……リフレクタ
、５……投影レンズ、８……カラーフイルタ、９
……リニアフレネルレンズ、Ｓ……スクリーン。 Figures 1 to 7 show an embodiment of this invention, in which Figure 1 is a vertical side view of a liquid crystal projector, Figure 2 is a sectional view taken along the line - in Figure 1, and Figure 3 is a sectional view taken along line - in Figure 1.
Figures 4 and 4 are front and side views of the linear Fresnel lens, Figure 5 is a front view of the three primary color filters provided in the liquid crystal display panel, and Figures 6 and 7 are the directions of light transmitted through the linear Fresnel lens. FIG. FIG. 8 is a longitudinal sectional side view of a liquid crystal projector showing another embodiment of this invention, and FIG. 9 is a sectional view taken along the line -- in FIG. Fig. 10 is a vertical side view of a conventional liquid crystal projector, and Fig. 11 is a vertical side view of a conventional liquid crystal projector.
FIG. 2 is a sectional view taken along the line - in the figure. 1...Liquid crystal display panel, 1a...Display section, 2...
...Light source section, 3...Light source lamp, 4...Reflector, 5...Projection lens, 8...Color filter, 9
...Linear Fresnel lens, S...Screen.

Claims

[Scope of utility model registration request]

A light source unit that irradiates illumination light parallel to the optical axis toward the liquid crystal display panel is provided at the rear of the transmissive liquid crystal display panel whose display unit has a rectangular shape. In a liquid crystal projector that enlarges and projects images onto a screen using a projection lens provided in front of a panel, a beam of illumination light from the light source is transmitted between the light source section and the liquid crystal display panel by narrowing the display section of the liquid crystal display panel. A liquid crystal projector characterized by being equipped with a linear Fresnel lens that focuses light only in the width direction.