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公开(公告)号：US20240351077A1
公开(公告)日：2024-10-24
申请号：US18762163
申请日：2024-07-02
CPC分类号： B08B7/02 , H04N23/811 , B60S1/56 , G02B27/0006
摘要： A vibration device includes a light transmitter, a vibrator to vibrate the light transmitter, a driver to drive the vibrator, and a controller configured or programmed to control the driver and determine a high-frequency-band resonant frequency of the vibrator according to a state of the driver obtained by changing a drive frequency of the driver within a high frequency band higher than or equal to about 100 kHz, and estimate a temperature of the light transmitter from the determined high-frequency-band resonant frequency.
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公开(公告)号：US20240280804A1
公开(公告)日：2024-08-22
申请号：US18652021
申请日：2024-05-01
发明人： Yuuki ISHII , Yuka TANAKA , Katsuhiro TABUCHI , Noritaka KISHI , Hitoshi SAKAGUCHI , Takahide NAKADOI , Nobumasa KITAMORI
CPC分类号： G02B27/0006 , H10N30/2047
摘要： An optical module includes a translucent body, a tubular vibrator supporting the translucent body, a piezoelectric element located at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator, in which a first gap is located between the translucent body and the inner-layer optical component, a second gap is located between the piezoelectric element and the inner-layer optical component, at least one of a first dimension of the first gap in a vibration direction of the translucent body and a second dimension of the second gap in the vibration direction of the vibrator is in a range of about [(n×λ/2)+0.1 mm] or more and about [{(n+1)×λ/2}−0.1 mm] or less, and n indicates an integer of 0 or more, and λ indicates a wavelength of an acoustic wave generated by vibration.
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公开(公告)号：US20240280803A1
公开(公告)日：2024-08-22
申请号：US18652018
申请日：2024-05-01
发明人： Yuuki ISHII , Yuka TANAKA , Katsuhiro TABUCHI , Takahide NAKADOI , Noritaka KISHI , Hitoshi SAKAGUCHI
CPC分类号： G02B27/0006 , B06B1/06 , B08B7/026
摘要： An optical module includes a translucent portion, a tubular vibrator supporting the translucent portion, a piezoelectric element at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator. A recess recessed in a thickness direction of the translucent portion and includes a curvature at a surface of the translucent portion facing the inner-layer optical component, the inner-layer optical component includes an inner-layer lens that faces the translucent portion and includes a first portion that protrudes toward the translucent portion and includes a curvature and a second portion at an outer periphery of the first portion, a first gap is located between the first portion and the translucent portion in the outer periphery of the first portion, a second gap is located between the second portion and the translucent portion, and the second gap is larger than the first gap.
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公开(公告)号：US20240288685A1
公开(公告)日：2024-08-29
申请号：US18655584
申请日：2024-05-06
发明人： Yuuki ISHII , Yuka TANAKA , Katsuhiro TABUCHI , Takahide NAKADOI , Noritaka KISHI , Hitoshi SAKAGUCHI
CPC分类号： G02B27/0006 , B06B1/0651 , G02B7/02
摘要： An optical module includes a translucent body, a vibrator that is tubular and supports the translucent body, a piezoelectric element located at the vibrator to vibrate the vibrator, and an inner-layer optical component at an inner side portion of the vibrator. The inner-layer optical component includes an inner-layer lens that faces the translucent body, a recess that is recessed in a thickness direction of the inner-layer lens and includes a curvature on a surface of the inner-layer lens facing the translucent body, and a gap is located between the translucent body and the recess of the inner-layer lens.
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