A light source unit is provided with: a display device capable of displaying an image; a first prism sheet on which light emitted from the display device is incident; and an imaging optical system. The imaging optical system includes an input element to which the light emitted from the first prism sheet is incident and an output element to which the light passing through the input element is incident, and forms a first image corresponding to the image with the light emitted from the output element. The imaging optical system has great telecentricity on the first image side. The light emitted from the display device has a substantially Lambert-type light distribution.
一种光源单元,其具备:显示装置,其能够显示图像;第一棱镜片,其供从上述显示装置射出的光入射;成像光学系统。上述成像光学系统包含从上述第一棱镜片射出的光入射的输入元件、和经由上述输入元件的光入射的输出元件,使从上述输出元件射出的光形成与上述图像对应的第一像。上述成像光学系统在上述第一像侧具有大致远心性。从上述显示装置射出的光具有大致朗伯型配光。
Light source unit and image display device
光源单元及影像显示装置
2025-01-17
Patent
Electronic Resource
Chinese