JPH0290834U

JPH0290834U -

Info

Publication number: JPH0290834U
Application number: JP17026688U
Authority: JP
Priority date: 1988-12-30
Filing date: 1988-12-30
Publication date: 1990-07-18

Description

[Brief explanation of drawings]

第１図はこの考案の一実施例による液晶プロジ
エクタ全体の概略構成図、第２図ａは同液晶プロ
ジエクタの要部拡大図、第２図ｂは光源装置から
発せられた平行照明光の光束断面形状を示した図
、第２図ｃは光路変更プリズムを透過した平行照
明光の光束断面形状を示した図、第３図は同液晶
プロジエクタにおける液晶表示パネルのチヤート
面とこれに照射された平行照明光とを示した図で
ある。３……光源装置、４……光路変更プリズム、６
……液晶表示パネル、６ａ……チヤート面、８…
…投影レンズ、１２……スクリーン、ａ，ａ′…
…平行照明光。 Figure 1 is a schematic diagram of the overall configuration of a liquid crystal projector according to an embodiment of this invention, Figure 2a is an enlarged view of the main parts of the same liquid crystal projector, and Figure 2b is a cross-section of a beam of collimated illumination light emitted from a light source device. Fig. 2c shows the cross-sectional shape of the parallel illumination light transmitted through the optical path changing prism, and Fig. 3 shows the chart surface of the liquid crystal display panel in the same liquid crystal projector and the parallel light irradiated on it. It is a figure showing illumination light. 3... Light source device, 4... Optical path changing prism, 6
...Liquid crystal display panel, 6a...Chart surface, 8...
...projection lens, 12...screen, a, a'...
...Parallel illumination light.

Claims

[Claims for Utility Model Registration] A liquid crystal projector that irradiates light from a light source device onto the chart surface of a transmissive liquid crystal display panel and enlarges and projects the image displayed on the liquid crystal display panel onto a screen using a projection lens, comprising: A light source device is arranged so that its optical axis is different from an axis perpendicular to the chart surface of the liquid crystal display panel, and an optical path changing prism is arranged between the light source device and the liquid crystal display panel, and the optical path changing prism A liquid crystal projector characterized in that the light from the light source device is refracted and compressed so as to be incident perpendicularly to the chart surface of the liquid crystal display panel.