Illumination device capable of changing irradiation direction of irradiation light from light-emitting portion, imaging apparatus, and method of controlling the same
AssigneeCanon Kabushiki Kaisha
InventorJunji Takai
Life of this patent
Estimating the term…
Abstract
A drive unit changes an irradiation direction of irradiation light from a light-emitting portion. A setting unit sets the irradiation direction of the irradiation light from the light-emitting portion. A control unit controls the drive unit. Depending on a cause of which the irradiation direction of the irradiation light from the light-emitting portion changes from the irradiation direction that is set by the setting unit, the control unit changes responsiveness of the drive unit that changes the irradiation direction of the irradiation light from the light-emitting portion into the irradiation direction that is set by the setting unit.
Claims17
An illumination device comprising:
- a light-emitting portion;
- a drive unit that changes an irradiation direction of irradiation light from the light-emitting portion;
- a setting unit that sets the irradiation direction of the irradiation light from the light-emitting portion;
- and
- a control unit that controls the drive unit,
- wherein depending on a cause of which the irradiation direction of the irradiation light from the light-emitting portion is changed from the irradiation direction that is set by the setting unit, the control unit changes timing at which the drive unit starts an operation for changing the irradiation direction of the irradiation light from the light-emitting portion into the irradiation direction that is set by the setting unit.
An imaging apparatus that is removably equipped with an illumination device including a light-emitting portion, a drive unit that changes an irradiation direction of irradiation light from the light-emitting portion, and a setting unit that sets the irradiation direction of the irradiation light from the light-emitting portion, the imaging apparatus comprising:
- a control unit that controls the drive unit,
- wherein depending on a cause of which the irradiation direction of the irradiation light from the light-emitting portion is changed from the irradiation direction that is set by the setting unit, the control unit changes timing at which the drive unit starts an operation for changing the irradiation direction of the irradiation light from the light-emitting portion into the irradiation direction that is set by the setting unit.
A method of controlling an irradiation direction of irradiation light from an illumination device including a light-emitting portion, a drive unit that changes the irradiation direction of the irradiation light from the light-emitting portion, and a setting unit that sets the irradiation direction of the irradiation light from the light-emitting portion, the method comprising:
- changing, depending on a cause of which the irradiation direction of the irradiation light from the light-emitting portion is changed from the irradiation direction that is set by the setting unit, time at which the drive unit starts an operation for changing the irradiation direction of the irradiation light from the light-emitting portion into the irradiation direction that is set by the setting unit.
Dependencies are inferred from the claim text.