发明名称 PROJECTION TYPE DISPLAY DEVICE
摘要 PROBLEM TO BE SOLVED: To provide a projection type display device that is capable of a quick projection after a lens is interchanged.SOLUTION: The projection type display device capable of interchanging a lens includes: a main body section; a lens unit that is mountable and demountable to and from the main body section; a lens cover that is attached to the main body section so as to protect the lens unit; a lens interchange detection section that detects an attachment/mounting and a detachment/demounting of the lens cover or the lens unit; and a control section that determines an attachment/mounting and detachment/demounting states of the lens cover or the lens unit on the basis of a signal from the lens interchange detection section. When it is determined that the lens cover or the lens unit is removed on the basis of the signal in a state where a power source of the projection type display device is turned on, the control section transitions a mode from a projection mode to a lens interchange mode.
申请公布号 JP2014137513(A) 申请公布日期 2014.07.28
申请号 JP20130006750 申请日期 2013.01.17
申请人 CANON INC 发明人 NAGAHAMA DAISAKU
分类号 G03B21/14;H04N5/74 主分类号 G03B21/14
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