发明名称 Transmitted-light projector
摘要 The invention relates to a transmitted-light projector, consisting of a light source, a condenser, a slide stage, and an objective (lens). It is the object of the invention to create a transmitted-light projector which is suitable in particular for the projection of LCDs and which is distinguished by the fact that when the distance of the projector from the projection screen is altered it is no longer necessary to alter the position in terms of height of the projected picture so that, by means of this projector, pictures can be projected without distortion onto horizontal projection screens independently of the size of the projected picture area. The invention consists in that the lower edge ray in the optical beam path which runs through the upper part of the condenser and the upper edge of the picture to be projected and ends in the lower edge of the picture projected is arranged horizontally or approximately horizontally and that the condenser is arranged at an acute angle with respect to the slide stage.
申请公布号 DE3828562(A1) 申请公布日期 1990.03.08
申请号 DE19883828562 申请日期 1988.08.23
申请人 GRUNWALD PROJEKTOREN AG, RUGGELL, LI 发明人 VERZICHT DES ERFINDERS AUF NENNUNG
分类号 G03B21/00 主分类号 G03B21/00
代理机构 代理人
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