Projector and method for controlling projector using a slidable lens shutter

摘要

A projector can not only perform power on/off operation in synchronization with open/close action of a shutter but also provide a screen mute function achieved by the shutter. When the shutter is located in an OFF position and the period timed by a timer is longer than or equal to a predetermined period during the operation of the projector, the projector is powered off. In this process, after the timing operation performed by the timer and notification from a notification unit are terminated, a light source is turned off and the projector is caused to enter a standby state.

主权项

1. A projector comprising:
an image projection unit that modulates light emitted from a light source in accordance with image information and projects the modulated light on a projection surface; an enclosure that accommodates the image projection unit; an opening which is provided in the enclosure and through which the projected light from the image projection unit passes; a shutter capable of blocking and unblocking the opening; a shutter position detection unit that detects the position of the shutter; and a control unit that turns off a power source of the projector when the shutter has been held in a predetermined OFF position for a predetermined period based on the detection result from the shutter position detection unit, wherein the shutter blocks the opening when the shutter is located in a predetermined closed position, wherein the OFF position is a position to which the shutter is moved with respect to the opening from the predetermined closed position while the shutter continues to block the opening, and wherein the predetermined closed position is a different position than the OFF position and a screen mute process is activated when the shutter is in the predetermined closed position.