投影レンズ

projector (projection) lens

[目次：レンズ系]

結像レンズ系の最終レンズ。中間レンズで拡大された像をさらに拡大し、蛍光板あるいは検出器上に結像する。倍率は固定で～150倍。

The "projector (projection) lens" is the final lens in the imaging lens system. The projector lens further magnifies the image magnified by the intermediate lens, and then forms the final image on the fluorescent screen or the detector. The magnification of this lens is fixed at a value of ～150×.