摘要:
Provided is an optical scanning device including: a mirror portion having a reflecting surface for reflecting incident light; a first actuator that allows the mirror portion to swing around a first axis located in a plane including the reflecting surface of the mirror portion in a stationary state; a second actuator that allows the mirror portion to swing around a second axis which is located in the plane including the reflecting surface of the mirror portion in the stationary state and is orthogonal to the first axis; a pair of first angle detection sensors that output a signal corresponding to an angle of the mirror portion around the first axis, the pair of first angle detection sensors being disposed at positions facing each other across the first axis or the second axis; and at least one processor, in which the processor generates a first angle detection signal representing the angle of the mirror portion around the first axis by adding or subtracting a pair of first output signals output from the pair of first angle detection sensors.
摘要:
The production method for a liquid ejection head is provided, in which a first head module (200B) is set (S26), a second candidate head module is selected (S 18), a first representative value (V typ1 ) of the first head module is acquired (S20), a second representative value (V typ2 ) of the second candidate head module is acquired (S20), an average value (V ave ) of the first representative value and the second representative value is derived (S24), and the second candidate head module by which the derived average value is 0.76-fold or more and 1.24-fold or less of an average ejection volume target value (G) is set as a second head module (S26).
摘要:
An optical scanning device, a driving method of an optical scanning device, and an image drawing system that can suppress a decrease in image quality of a drawn image are obtained. A driving controller derives a first shift time that is a shift time used for correcting a generation timing of a first reference signal representing that an angle of a mirror portion around a first axis is equal to a first reference angle, and is a shift time of a point in time when the angle of the mirror portion around the first axis is equal to the first reference angle with respect to a point in time when an output signal of a first angle detection sensor represents that the angle of the mirror portion around the first axis is equal to the first reference angle, based on an output signal of a photodetector.
摘要:
The production method for a liquid ejection head is provided, in which a first head module (200B) is set (S26), a second candidate head module is selected (S 18), a first representative value (V typ1 ) of the first head module is acquired (S20), a second representative value (V typ2 ) of the second candidate head module is acquired (S20), an average value (V ave ) of the first representative value and the second representative value is derived (S24), and the second candidate head module by which the derived average value is 0.76-fold or more and 1.24-fold or less of an average ejection volume target value (G) is set as a second head module (S26).
摘要:
A processor applies a first driving signal having a first driving frequency to a first actuator, applies a second driving signal having a second driving frequency to a second actuator, generates a first angle detection signal by performing first frequency filter processing based on the first driving frequency on an output signal of a first angle detection sensor, generates a second angle detection signal by performing second frequency filter processing based on the second driving frequency on an output signal of a second angle detection sensor, derives a first angle, which is an angle of a mirror portion around a first axis, based on the first angle detection signal, derives a second angle, which is an angle of the mirror portion around a second axis, based on the second angle detection signal, adjusts the first driving signal based on the first angle, and adjusts the second driving signal based on the second angle.
摘要:
An optical scanning device, a driving method of an optical scanning device, and an image drawing system that can suppress a decrease in image quality of a drawn image are obtained. A driving controller provides a first driving signal having a first driving frequency to a first actuator, provides a second driving signal having a second driving frequency to a second actuator, derives a first average phase delay time by averaging a first phase delay time of an output signal of a first angle detection sensor with respect to the first driving signal in a plurality of cycles, derives a second average phase delay time by averaging a second phase delay time of an output signal of a second angle detection sensor with respect to the second driving signal in a plurality of cycles, generates a first reference signal based on the first driving signal and the first average phase delay time, and generates a second reference signal based on the second driving signal and the second average phase delay time.
摘要:
A piezoelectric device, including the following on a substrate in the order listed below: a lower electrode, a piezoelectric film which contains a Pb containing perovskite oxide represented by a general expression (P) below, and an upper electrode, in which the piezoelectric film has a layer of pyrochlore oxide on the surface facing the lower electrode, and the average layer thickness of the pyrochlore oxide layer is not greater than 20 nm. AaBbO3 (P) where, A: at least one type of A-site element containing Pb as a major component, B: at least one type of B-site element selected from the group consisting of Ti, Zr, V, Nb, Ta, Cr, Mo, W, Mn, Sc, Co, Cu, In, Sn, Ga, Zn, Cd, Fe, and Ni, and O: an oxygen element.
摘要:
The liquid ejection head (21) has a structure in which three or more head modules (200) including a plurality of ejection elements (281) are arranged along a single direction, and the liquid ejection head (21) includes a first head module (200B), a second head module (200C) and a third head module (200D) which are arranged in ascending order of slope of ejection volume distribution in the single direction or are arranged in descending order of the slope of the ejection volume distribution in the single direction, the slope of the ejection volume distribution in the single direction being evaluated by subtracting an ejection volume at one end part in the single direction from an ejection volume at the other end part in the single direction.
摘要:
The liquid ejection head (21) has a structure in which three or more head modules (200) including a plurality of ejection elements (281) are arranged along a single direction, and the liquid ejection head (21) includes a first head module (200B), a second head module (200C) and a third head module (200D) which are arranged in ascending order of slope of ejection volume distribution in the single direction or are arranged in descending order of the slope of the ejection volume distribution in the single direction, the slope of the ejection volume distribution in the single direction being evaluated by subtracting an ejection volume at one end part in the single direction from an ejection volume at the other end part in the single direction.