JPS6354135U

JPS6354135U -

Info

Publication number: JPS6354135U
Application number: JP14723186U
Authority: JP
Priority date: 1986-09-26
Filing date: 1986-09-26
Publication date: 1988-04-12

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図〜第１１図はこの考案の一実施例を示し
たもので、第１図、第２図および第３図は光源装
置の縦断正面図、一部切開平面図および一部切開
側面図、第４図および第５図は液晶プロジエクタ
の縦断正面図および一部切開平面図、第６図、第
７図および第８図は表示装置の正面図、平面図お
よび縦断側面図、第９図は表示ユニツトの一部切
開正面図、第１０図および第１１図は第９図の
―線および―線に沿う拡大断面図であ
る。第１２図は従来の液晶プロジエクタの原理構
成図である。１０……プロジエクタケース、３０……表示装
置、４３……液晶表示パネル、５０……光源装置
、５１……光源ボツクス、５２……高電圧アーク
ランプ、５３……リフレクタ、５６……防爆筒、
５７……防爆ガラス。 Figures 1 to 11 show an embodiment of this invention, and Figures 1, 2, and 3 are a longitudinal sectional front view, a partially cutaway plan view, and a partially cutaway side view of the light source device. , FIGS. 4 and 5 are a longitudinal sectional front view and a partially cutaway plan view of the liquid crystal projector, FIGS. 6, 7, and 8 are a front view, a plan view, and a longitudinal sectional side view of the display device, and FIG. 10 is a partially cutaway front view of the display unit, and FIGS. 10 and 11 are enlarged sectional views taken along lines - and - in FIG. 9. FIG. 12 is a diagram showing the basic structure of a conventional liquid crystal projector. 10...Projector case, 30...Display device, 43...Liquid crystal display panel, 50...Light source device, 51...Light source box, 52...High voltage arc lamp, 53...Reflector, 56...Explosion proof tube ,
57...Explosion-proof glass.

Claims

【実用新案登録請求の範囲】[Scope of utility model registration request]

透過型液晶表示パネルと、前記液晶表示パネル
の後方に設けられた光源装置と、前記液晶表示パ
ネルの表示像をスクリーン面に拡大投影する投影
レンズとを備えた液晶プロジエクタの光源装置で
あつて、前面に開口を設けた光源ボツクス内に、
高電圧アークランプからなる光源ランプと、この
ランプからの照明光を前記液晶表示パネルに向け
て反射させるリフレクタとを設けるとともに、前
記光源ボツクスの前面にその前方に突出する筒状
の防爆筒を取付け、かつこの防爆筒の前端の開口
面を透明な防爆ガラスで覆つたことを特徴とする
液晶プロジエクタの光源装置。 A light source device for a liquid crystal projector, comprising a transmissive liquid crystal display panel, a light source device provided behind the liquid crystal display panel, and a projection lens for enlarging and projecting a display image of the liquid crystal display panel onto a screen surface, Inside the light source box with an opening on the front,
A light source lamp consisting of a high-voltage arc lamp and a reflector that reflects the illumination light from the lamp toward the liquid crystal display panel are provided, and a cylindrical explosion-proof cylinder that protrudes forward is attached to the front surface of the light source box. A light source device for a liquid crystal projector, characterized in that the opening surface at the front end of the explosion-proof cylinder is covered with transparent explosion-proof glass.