Control device for variable focus lenses, control method for variable focus lenses, and electronic glasses
AssigneeMitsui Chemicals, Inc.
InventorsSatoko Machida, Kouji Sone
Life of this patent
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Abstract
A control device (4) controls a varifocal lens (2) having a first substrate (20), a second substrate (22) facing the first substrate (20), and a varifocal component (14) disposed between the first substrate (20) and the second substrate (22). When an off signal is inputted to the varifocal component (14), the control device (4) stops applying voltage to the varifocal component (14), then applies voltage for a specific length of time, and finally stops the voltage. This reduces the duration of hazing that occurs during the switching of voltage application to the varifocal component (14).
Claims15
A control device that controls a varifocal lens having a first substrate, a second substrate facing the first substrate, and a varifocal component disposed between the first substrate and the second substrate, the control device comprising:
- an input component that receives signals inputted from a sensor;
- a processor that determines whether a specific switching signal is inputted, wherein the specific switching signal is a signal which indicates that a state of the varifocal lens is to be switched to a high refractive index state, and, when it is determined that the specific signal indicating that a state of the varifocal lens is to be switched to a high refractive index state is received, outputs command signals to switch a state of the varifocal lens to a no-voltage application state, the command signals being signals to initially stop applying voltage to the varifocal component, to then apply voltage to the varifocal component for a specific length of time, and to then finally stop applying voltage to the varifocal component.
A control method for controlling a varifocal lens having a first substrate, a second substrate facing the first substrate, and a varifocal component disposed between the first substrate and the second substrate, the method comprising:
- receiving signals inputted from a sensor;
- determining whether a specific switching signal is inputted, wherein the specific switching signal is a signal which indicates that a state of the varifocal lens is to be switched to a high refractive index state, and,
- when it is determined that the specific signal indicating that a state of the varifocal lens is to be switched to a high refractive index state is received, outputting command signals to switch a state of the varifocal lens to a no-voltage application state, the command signals being signals to initially stop applying voltage to the varifocal component, to then apply voltage to the varifocal component for a specific length of time, and to then finally stop applying voltage to the varifocal component.
Electronic eyeglasses, comprising:
- a varifocal lens having a first substrate, a second substrate facing the first substrate, and a varifocal component disposed between the first substrate and the second substrate;
- an eyeglass frame to which the varifocal lens is attached;
- a sensor provided at the eyeglass frame, the sensor being configured to detect at least one of a user operation and a change in an angle of the eyeglass frame and output a switching signal;
- and
- a control device that controls a varifocal lens having a first substrate, a second substrate facing the first substrate, and a varifocal component disposed between the first substrate and the second substrate, the control device comprising:
- an input component that receives signals inputted from the sensor;
- a processor that determines whether a specific switching signal is inputted, wherein the specific switching signal is a signal which indicates that a state of the varifocal lens is to be switched to a high refractive index state, and, when it is determined that the specific signal indicating that a state of the varifocal lens is to be switched to a high refractive index state is received, outputs command signals to switch a state of the varifocal lens to a no-voltage application state, the command signals being signals to initially stop applying voltage to the varifocal component, to then apply voltage to the varifocal component for a specific length of time, and to then finally stop applying voltage to the varifocal component.
A control device that controls a varifocal lens having a first substrate, a second substrate facing the first substrate, and a varifocal component disposed between the first substrate and the second substrate, said control device comprising:
- an input component configured to receive an input of a specific signal;
- a determination component configured to receive the specific signal from the input component and determine whether to switch voltage to the varifocal component on or off according to the specific signal;
- an output component configured to output a command signal to switch the voltage to the varifocal component on or off according to a determination result received from the determination component;
- and
- a driver configured to receive the command signal from the output component, the driver being configured to, when the command signal is a signal to switch off the voltage to the varifocal component, initially stop applying voltage to the varifocal component, then apply voltage to the varifocal component for a specific length of time, and finally stop applying voltage to the varifocal component.
Dependencies are inferred from the claim text.