Patent ID: 9158146
Filing Date: 2015-10-13
Classification: F21V,G02B,G02F,G03B,H04L,H04N

Abstract:
1. A projector comprising: a connecting unit for mounting the projector to a power supply terminal for lighting equipment; a light source configured to emit light with electric power supplied to the connecting unit; a light modulating unit configured to convert the light emitted by the light source into modulated light specified by an image signal; a diffusion adjusting unit configured to adjust a diffusion degree of the light made incident on the light modulating unit or the light emitted from the light modulating unit; a communication unit configured to receive predetermined information via a communication network; and a control unit configured to update the image signal and control the adjustment of the diffusion degree by the diffusion adjusting unit on the basis of contents of the predetermined information received by the communication unit, wherein the control unit switches, on the basis of the contents of the predetermined information, an illumination mode for causing the diffusion adjusting unit to diffuse the light and a projection mode in which the diffusion degree is lower than the diffusion degree in the illumination mode.