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公开(公告)号：US12204114B2
公开(公告)日：2025-01-21
申请号：US18422554
申请日：2024-01-25
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee
IPC: G02B27/09 , G06F3/03 , G06F3/0354
Abstract: There is provided an illumination system of a navigation device including a light beam shaping optics, and a first light source and a second light source having different characteristics. The light beam shaping optics is used to shape light beams emitted by the first light source and the second light source to illuminate a work surface with substantially identical incident angles and/or beam sizes.
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公开(公告)号：US12105297B2
公开(公告)日：2024-10-01
申请号：US18235884
申请日：2023-08-21
Applicant: PixArt Imaging Inc.
Inventor： Hun-Kwang Lee , Sai-Mun Lee , Priscilla Tze-Wei Goh , Lye-Pin Chu
IPC: G02B27/09 , G06F3/03 , G06F3/0354
CPC classification number: G02B27/0994 , G06F3/0304 , G06F3/03543
Abstract: An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.
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公开(公告)号：US10937773B2
公开(公告)日：2021-03-02
申请号：US16235118
申请日：2018-12-28
Applicant: PixArt Imaging Inc.
Inventor： Chee-Pin T'ng , Sai-Mun Lee
Abstract: There is provided an image module package including a substrate, a photo sensor chip, a molded transparent layer and a glass filter. The substrate has an upper surface. The photo sensor chip is attached to the upper surface of the substrate and electrically connected to the substrate. The molded transparent layer covers the photo sensor chip and a part of the upper surface of the substrate, wherein a top surface of the molded transparent layer is formed with a receptacle opposite to the photo sensor chip. The glass filter is accommodated in the receptacle.
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公开(公告)号：US11550161B2
公开(公告)日：2023-01-10
申请号：US17197336
申请日：2021-03-10
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee
IPC: G02B27/09 , G06F3/03 , G06F3/0354
Abstract: There is provided an illumination system of a navigation device including a light beam shaping optics, and a first light source and a second light source having different characteristics. The light beam shaping optics is used to shape light beams emitted by the first light source and the second light source to illuminate a work surface with substantially identical incident angles and/or beam sizes.
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公开(公告)号：US11048342B2
公开(公告)日：2021-06-29
申请号：US16730046
申请日：2019-12-30
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee
IPC: G06F3/0354 , G06F3/0338 , G06F3/0362 , G06F3/0346 , G06F3/01 , G06F3/03
Abstract: There is provided a dual mode optical navigation device. The dual mode optical navigation device is configured to operate in a first mode or a second mode on a working surface. The dual mode optical navigation device includes an image sensor and a processor. The image sensor captures an image frame of the working surface. The processor calculates a ratio of a bright area and a dark area in one image frame capture by the image sensor, enters the first mode in response to the calculated ratio being larger than a ratio threshold, and enters the second mode in response to the calculated ratio being within a ratio threshold range. The ratio threshold range is smaller than the ratio threshold.
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Patent Agency Ranking
公开(公告)号：US10558279B2
公开(公告)日：2020-02-11
申请号：US16237786
申请日：2019-01-02
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee
IPC: G06F3/0354 , G06F3/0338 , G06F3/0362 , G06F3/0346 , G06F3/01 , G06F3/03
Abstract: There is provided a mode switching method of a dual mode optical navigation device. The dual mode optical navigation device is configured to be operated on a working surface and has a first bottom surface and a second bottom surface having an included angle with the first bottom surface. The mode switching method includes: determining whether the first bottom surface or the second bottom surface contacts with the working surface; switching the dual mode optical navigation device to a first mode when identifying that the first bottom surface contacts with the working surface; and switching the dual mode optical navigation device to a second mode when identifying that the second bottom surface contacts with the working surface.
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公开(公告)号：US10209787B2
公开(公告)日：2019-02-19
申请号：US15919698
申请日：2018-03-13
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee
IPC: G06F3/0354 , G06F3/0346 , G06F3/0362 , G06F3/0338 , G06F3/03 , G06F3/01
Abstract: There is provided a mode switching method of a dual mode optical navigation device. The dual mode optical navigation device is configured to be operated on a working surface and has a first bottom surface and a second bottom surface having an included angle with the first bottom surface. The mode switching method includes: determining whether the first bottom surface or the second bottom surface contacts with the working surface; switching the dual mode optical navigation device to a first mode when identifying that the first bottom surface contacts with the working surface; and switching the dual mode optical navigation device to a second mode when identifying that the second bottom surface contacts with the working surface.
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公开(公告)号：US12230621B2
公开(公告)日：2025-02-18
申请号：US18424903
申请日：2024-01-29
Applicant: PixArt Imaging Inc.
Inventor： Sai-Mun Lee , Lye-Pin Chu
IPC: H01L25/16 , G06F3/0354 , G06F3/042 , H01L27/146
Abstract: There is provided an optical navigation module including an optical package and a light reflective element. The optical package includes an image sensor which has a sensor surface. The light reflective element is configured to reflect light propagating parallel to the sensor surface to light propagating perpendicular to the sensor surface to impinge on the sensor surface thereby performing the lateral detection.
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公开(公告)号：US20250025010A1
公开(公告)日：2025-01-23
申请号：US18907619
申请日：2024-10-07
Applicant: PixArt Imaging Inc.
Inventor： KEEN-HUN LEONG , Sai-Mun Lee , Ching-Geak Chan
Abstract: There is provided a mobile robot including a light source, an image sensor and a processor. The image sensor respectively captures bright image frames and dark image frames corresponding to the light source being turned on and turned off. The processor identifies that the mobile robot faces a cliff when a gray level variation between the bright image frames and the dark image frames is very small, and controls the mobile robot to stop moving forward continuously.
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公开(公告)号：US20240419010A1
公开(公告)日：2024-12-19
申请号：US18820322
申请日：2024-08-30
Applicant: PixArt Imaging Inc.
Inventor： HUN-KWANG LEE , Sai-Mun Lee , Priscilla Tze-Wei Goh , Lye-Pin Chu
IPC: G02B27/09 , G06F3/03 , G06F3/0354
Abstract: An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.
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