| 摘要 |
This projector (100, 200) includes a laser light generation portion (23, 24, 25), a projection portion (28) scanning laser light, and a speckle noise reducing projection screen (1). The projection screen includes a lens member (11) including a plurality of lens portions (111) splitting the laser light and a member (12) arranged to be opposed to the lens member, having an incident surface (122) and a diffusion portion. The diffusion portion of the diffusion member is arranged at a position apart by a distance larger than the focal length of the lens member along an optical axis (114) with respect to the optical principal surface (113) of the lens member. |
