IMAGING OPTICAL SYSTEM, PROJECTION TYPE IMAGE DISPLAY APPARATUS USING THE SAME AND IMAGING APPARATUS

Japanese Patent JP2016105191

A

PROBLEM TO BE SOLVED: To provide a small size imaging lens system capable of properly correcting distortion aberration while ensuring a wide angle of view.SOLUTION: The imaging lens system includes: a first optical system 1 having a positive refractive power which causes an intermediate image conjugate with an image plane at the expansion side; and a second optical system 2 which has a positive refractive power which causes the intermediate image conjugate with an image plane at the compaction side. Defining the focus distance of the first optical system 1 as fF; and the focus distance of the second optical system 2 as fR, 0