| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical system for projection for forming an intermediate image, which has high projection performance with the aberrations corrected at wide angle while suppressing the cost, and also provide a projection type display device including the optical system for projection.SOLUTION: The optical system for projection substantially includes in the order from the reduction side: a first optical system G1 including a plurality of lenses and forming an image on an image display element as an intermediate image; and a second optical system G2 including a plurality of lenses and forming the intermediate image on a magnified side conjugate surface. The following conditional expression (1) is satisfied: (1) 1.50<f2/|f|<2.80.SELECTED DRAWING: Figure 1 |
