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公开(公告)号：US20220224839A1
公开(公告)日：2022-07-14
申请号：US17712665
申请日：2022-04-04
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Takuto TSUKAMOTO , Tetsuya YOSHIDA , Yoshihiro SEKIMOTO
IPC: H04N5/232
Abstract: An image stabilization actuator is used to displace a movable unit in a first direction, and a position in the first direction when an AF-axis position detection signal reaches a peak value is detected. Similarly, the image stabilization actuator is used to displace the movable unit in a second direction, and a position in the second direction when the AF-axis position detection signal reaches a peak value is detected. A reference position based on the position in the first direction and the position in the second direction thus obtained is stored. Correction information indicating a relationship between a displacement amount, from the reference position, of the movable unit displaced by the image stabilization actuator and a correction amount of the position detection signal is stored.
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公开(公告)号：US20210311283A1
公开(公告)日：2021-10-07
申请号：US17348030
申请日：2021-06-15
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Akihito SAITO , Yoshihiro SEKIMOTO
Abstract: A position detection unit generates a position detection value PFB that indicates the position of a control target. A temperature detection unit generates a temperature detection value that indicates the temperature. A correction unit corrects the position detection value PFB. A controller generates a control instruction value SREF such that the position detection value PFB_CMP subjected to the correction matches a position instruction value PREF that indicates the target position of the control target. A driver unit applies a driving signal that corresponds to the control instruction value SREF to an actuator. The correction unit corrects the position detection value PFB such that the relation between the position detection value PFB and the actual position exhibits linearity that is uniform independent of the temperature.
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公开(公告)号：US20200336664A1
公开(公告)日：2020-10-22
申请号：US16921209
申请日：2020-07-06
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Akihito SAITO , Yoshihiro SEKIMOTO
Abstract: An imaging device includes an imaging lens, an imaging element that captures an image transmitted through the imaging lens, a blur detection part configured to detect a blur, an actuator configured to determine a position of the imaging lens, and an actuator driver configured to control the actuator in accordance with a blur detection signal from the blur detection part. The shift of the image occurring when forcibly changing the position of the imaging lens is corrected by shift of an effective pixel area of the imaging element according to the forcible change amount of the position of the imaging lens.
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公开(公告)号：US20180100985A1
公开(公告)日：2018-04-12
申请号：US15726802
申请日：2017-10-06
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Akihito SAITO , Yoshihiro SEKIMOTO
CPC classification number: G02B7/028 , G01D3/036 , G01D3/0365 , G01D5/145 , G01J1/0403 , G01K13/00 , G02B7/08 , H02K11/215 , H02K11/22
Abstract: A position detection unit generates a position detection value PFB that indicates the position of a control target. A temperature detection unit generates a temperature detection value that indicates the temperature. A correction unit corrects the position detection value PFB. A controller generates a control instruction value SREF such that the position detection value PFB_CMP subjected to the correction matches a position instruction value PREF that indicates the target position of the control target. A driver unit applies a driving signal that corresponds to the control instruction value SREF to an actuator. The correction unit corrects the position detection value PFB such that the relation between the position detection value PFB and the actual position exhibits linearity that is uniform independent of the temperature.
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公开(公告)号：US20190045095A1
公开(公告)日：2019-02-07
申请号：US16051813
申请日：2018-08-01
Applicant: ROHM CO., LTD.
Inventor： Hiromichi TANIMUKAI , Akihito SAITO , Jun MAEDE , Yoshihiro SEKIMOTO
CPC classification number: H04N5/2254 , G02B7/04 , G02B7/08 , G02B27/646 , H04N5/2252 , H04N5/23212 , H04N5/23258 , H04N5/23287
Abstract: An actuator positions a movable portion including a lens in a first direction (Z-axis direction). An acceleration sensor generates first acceleration information ACC that indicates the acceleration applied to the image capture apparatus in the first direction. An actuator driver IC superimposes a correction value that corresponds to the first acceleration information on a base instruction value that corresponds to the target position to be set for the lens in the first direction. The actuator driver IC controls the actuator according to a corrected instruction value thus obtained.
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Patent Agency Ranking
公开(公告)号：US20180343393A1
公开(公告)日：2018-11-29
申请号：US15989821
申请日：2018-05-25
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Akihito SAITO , Hiromichi TANIMUKAI , Yoshihiro SEKIMOTO
CPC classification number: H04N5/23287 , G03B5/02 , G03B5/04 , G03B2205/0015 , G03B2205/0053 , G03B2217/005 , H04N5/23254 , H04N5/23258
Abstract: An imaging device includes: imaging lens displaceable in first and second directions in plane perpendicular to optical axis; actuator positioning the imaging lens in the first and second directions; position detector generating first and second position detection signals Hx and Hy, Hx including crosstalk component caused by displacing the imaging lens in the second direction, and Hy including crosstalk component caused by displacing the imaging lens in the first direction; crosstalk compensator correcting Hx and Hy to reduce crosstalk components included in Hx and Hy; and driver controlling the actuator based on corrected first and second position detection signals Hx′ and Hy′, wherein when ratio of Hy to Hx while driving the imaging lens in the first direction is α and ratio of Hx to Hy while driving the imaging lens in the second direction is β, the crosstalk compensator reduces crosstalk components included in Hx and Hy.
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公开(公告)号：US20180295286A1
公开(公告)日：2018-10-11
申请号：US15944097
申请日：2018-04-03
Applicant: ROHM CO., LTD.
Inventor： Jun MAEDE , Akihito SAITO , Yoshihiro SEKIMOTO
Abstract: An imaging device includes an imaging lens, an imaging element that captures an image transmitted through the imaging lens, a blur detection part configured to detect a blur, an actuator configured to determine a position of the imaging lens, and an actuator driver configured to control the actuator in accordance with a blur detection signal from the blur detection part. The shift of the image occurring when forcibly changing the position of the imaging lens is corrected by shift of an effective pixel area of the imaging element according to the forcible change amount of the position of the imaging lens.
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公开(公告)号：US20180249082A1
公开(公告)日：2018-08-30
申请号：US15902506
申请日：2018-02-22
Applicant: ROHM CO., LTD.
Inventor： Akihito SAITO , Hiromichi TANIMUKAI , Jun MAEDE , Yoshihiro SEKIMOTO
Abstract: An imaging device includes: an imaging element; a lens disposed on a path of incident light to the imaging element; an actuator configured to displace the lens in a plane perpendicular to an optical axis; a position detecting element configured to generate a position detection signal indicating a displacement of the lens; and an actuator driver configured to feedback-control the actuator based on the position detection signal and a target code indicating a target displacement of the lens. The actuator driver includes: a correction circuit that converts a first detection code corresponding to the position detection signal into a second detection code having a linear relationship with an actual displacement of the lens; and a control circuit that controls the actuator so that the second detection code approaches the target code.
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公开(公告)号：US20220157503A1
公开(公告)日：2022-05-19
申请号：US17437801
申请日：2020-03-12
Applicant: ROHM CO., LTD.
Inventor： Akihito SAITO , Isamu NISHIMURA , Yoshihiro SEKIMOTO
Abstract: A coil module includes a substrate, a conductor layer, at least one element, and a sealing resin. The substrate includes a semiconductor material. The conductor layer is formed on the substrate and includes a wiring section and a coil section of a helical shape. The at least one element is mounted on the wiring section. The sealing resin covers the obverse surface of the substrate, the conductor layer, and the at least one element. The at least one element includes, for example, a magnetic detection element.
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10.发明申请公开(公告)号：US20220059266A1
公开(公告)日：2022-02-24
申请号：US17438868
申请日：2020-03-12
Applicant: ROHM CO., LTD.
Inventor： Akihito SAITO , Isamu NISHIMURA , Yoshihiro SEKIMOTO
Abstract: A coil module includes a conductor layer, at least one element, and a sealing resin. The conductor layer is formed along a predetermined plane and includes a wiring portion and a helical-shaped coil portion. The at least one element is mounted on the wiring portion. The sealing resin covers the conductor layer and the at least one element. The sealing resin is integrally formed of a single type of resin material and has a predetermined thickness in a first direction perpendicular to the plane.
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