Patents by Inventor Chang Hyuck LEE
Chang Hyuck LEE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11393112Abstract: A camera module according to an embodiment of the present invention includes a structured light projector configured to generate structured light of a specific pattern and changes an optical path of the structured light into units of subpixels of an image sensor for each image frame to project the structured light onto a subject, and a structured light camera configured to photograph the subject onto which the structured light is projected to generate a plurality of low-resolution image frames and generate a high-resolution depth map from the plurality of low-resolution image frames.Type: GrantFiled: April 26, 2019Date of Patent: July 19, 2022Assignee: LG INNOTEK CO., LTD.Inventors: Chang Hyuck Lee, Kang Yeol Park, Seong Ha Jang
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Publication number: 20220210393Abstract: According to an embodiment of the present invention, disclosed is a camera module comprising: an optical output unit for outputting an optical signal to an object; an optical unit for transmitting the optical signal reflected from the object; a sensor for receiving the optical signal transmitted through the optical unit; and a control unit for acquiring the depth map of the object by using the optical signal received by the sensor, wherein the sensor includes an effective area in which a light receiving element is arranged and a non-effective area excluding the effective area, and includes a first row area in which the effective area and the non-effective area are alternately arranged in a row direction, and a second row area in which the effective area and the non-effective area are alternately arranged in the row direction, and in which the effective area is arranged in a column direction at a position not overlapping with the effective area of the first row area, light reaching the effective area of the fiType: ApplicationFiled: April 27, 2020Publication date: June 30, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Yang Hyun JOO, Chang Hyuck LEE
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Patent number: 11368665Abstract: A camera module according to one embodiment of the present invention comprises: a lighting unit for outputting an output light signal emitted at an object; a lens unit including an infrared (IR) filter and at least one sheet of a lens arranged on the IR filter, and condensing an input light signal reflected from the object; a tilting unit for shifting the optical path of the input light signal by controlling the tilt of the IR filter; an image sensor unit for generating an electric signal from the input light signal condensed by the lens unit and shifted by the tilting unit; an image control unit for extracting depth information of the object by using a phase difference between the output light signal and the input light signal received by the image sensor unit; and a detection unit for detecting tilt information of the IR filter and providing the tilt information of the IR filter to the image control unit.Type: GrantFiled: June 5, 2019Date of Patent: June 21, 2022Assignee: LG INNOTEK CO., LTD.Inventors: Eun Song Kim, Seong Ha Jang, Chang Hyuck Lee
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Publication number: 20220155443Abstract: An optical device includes a light receiving element for detecting light reflected and transmitted from a subject; a voltage part for providing a first bias voltage or a second bias voltage to the light receiving element; and a controller for controlling the voltage part so that the second bias voltage provided from the voltage part is synchronized with a light output of a light emitting part to be provided to the light receiving element.Type: ApplicationFiled: January 24, 2022Publication date: May 19, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Chang Hyuck LEE, Lee Im KANG, Ji Sung KIM, Yang Hyun JOO
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Publication number: 20220120909Abstract: A camera device according to one embodiment of the present disclosure, comprises: a light output unit which outputs an output-light signal irradiated on an object; a lens unit which comprises an infrared (IR) filter and at least one lens arranged on the IR filter, and condenses an input-light signal reflected from the object; an image sensor which generates an electrical signal from the input-light signal condensed by the lens unit; a tilting unit which shifts the optical path of the input-light signal according to a predetermined rule; and an image control unit which acquires depth information of the object by using a phase difference between the output-light signal and the input-light signal received at the image sensor, wherein the image control unit acquires the depth information of the object by using data extracted during a plurality of periods during which the optical path of the input-light signal is repeatedly shifted according to the predetermined rule, and the image control unit corrects the differType: ApplicationFiled: September 26, 2019Publication date: April 21, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Eun Song KIM, Chang Hyuck LEE
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Publication number: 20220116537Abstract: A camera module according to the present embodiment includes a light emitting part configured to output a light signal to an object, a filter configured to allow the light signal to pass therethrough, at least one lens disposed on the filter and configured to collect the light signal from the object, a sensor configured to generate an electric signal from the light signal collected by the lens, the sensor including a plurality of pixels arranged in an array form, and a tilting part configured to tilt the filter to repeatedly move an optical path of the light signal having passed through the filter according to a predetermined rule. The optical path of the light signal passing through the filter is moved in one direction among diagonal directions of the sensor with respect to an optical path corresponding to the filter being disposed parallel to the sensor.Type: ApplicationFiled: January 6, 2020Publication date: April 14, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Chang Hyuck LEE, Young Kil SONG
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Publication number: 20220094830Abstract: A camera module according to the present embodiment comprises: a light-emitting unit for outputting light to an object; a filter allowing the light to pass therethrough; at least one sheet of lens disposed on the filter and condensing the light reflected from the object; a sensor including a plurality of pixels aligned in an array and generating an electrical signal from the light condensed by the lens; and a tilt unit for tilting the filter such that an optical path of the light having passed through the filter is repeatedly moved according to a predetermined rule, wherein the tilt unit includes: a tilting driver for generating an output signal synchronized with an exposure cycle of the sensor on the basis of a trigger signal input from the sensor; and a tilting actuator for tilting the filter diagonally by the output signal.Type: ApplicationFiled: January 6, 2020Publication date: March 24, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Woong LEE, Chul KIM, Chang Hyuck LEE
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Patent number: 11262439Abstract: Provided are a light-receiving device and lidar comprising the light-receiving device. The light-receiving device comprises: a first lens comprising a first lens surface for receiving light from an outside and a second lens surface for changing the path of the light received by the first lens surface and outputting the light to the outside; and a sensor on which light transmitted through the second lens surface is incident, wherein the first lens surface is a spherical surface, the second lens surface is an aspherical surface, and the focus of the first lens deviates from the sensor surface of the sensor.Type: GrantFiled: July 25, 2017Date of Patent: March 1, 2022Assignee: LG INNOTEK CO., LTD.Inventors: Chang Hyuck Lee, Lee Im Kang, Ji Sung Kim, Yang Hyun Joo
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Publication number: 20220012908Abstract: According to one embodiment, disclosed is a method by which a camera module capable of acquiring depth information controls the output time point and the reception time point of light. By controlling both the output time point and the reception time point of light, the camera module can acquire the light of phases in which adjacent reception pixels differ from one another despite controlling light sources or reception pixels in line units.Type: ApplicationFiled: October 7, 2019Publication date: January 13, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Yang Hyun JOO, Chang Hyuck LEE, Hyeong Jin KIM
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Publication number: 20220003873Abstract: A camera device according to an embodiment of the present invention includes: an light output unit which outputs output light signals to be emitted to an object and includes a plurality of light sources arrayed according to predetermined rules; a lens unit which includes an infrared (IR) filter and at least one lens disposed on the IR filter, and focuses input light signals reflected from the object; an image sensor which generates electrical signals from the input light signals focused by the lens unit; an image processing unit which acquires depth information about the object by using phase differences or time differences between the output light signals and the input light signals received in the image sensor; and a control unit which controls the light output unit, the lens unit, the image sensor, and the image processing unit, wherein the plurality of light sources are divided into at least two light source groups, the control unit controls the output light signals to be output sequentially for each lighType: ApplicationFiled: September 26, 2019Publication date: January 6, 2022Applicant: LG INNOTEK CO., LTD.Inventors: Ju Un PARK, Chang Hyuck LEE, Seong Ha JANG
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Publication number: 20210383561Abstract: A camera module according to an embodiment of the present invention comprises: a light output portion for successively outputting a first output light signal and a second output light signal, which are emitted to an object, during a single period; a lens portion for concentrating a first input light signal and a second input light signal, which are reflected from the object, the lens portion comprising an infrared (IR) filter and at least one lens disposed on the IR filter; an image sensor for generating a first electric signal and a second electric signal from the first input light signal and the second input light signal, which have been concentrated by the lens portion; a tilting portion for shifting optical paths of the first input light signal and the second input light signal according to a predetermined rule; and an image control portion for acquiring depth information of the object by using the first electric signal and a phase difference between the first output light signal and the first input lightType: ApplicationFiled: September 20, 2019Publication date: December 9, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Woong LEE, Seong Ha JANG, Chang Hyuck LEE
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Publication number: 20210263136Abstract: An embodiment provides a method and a device for outputting a light, which can output a light in a safe manner. Specifically, disclosed are a method and a device for outputting a light, which control an output light to prevent the output light from being concentrated on a specific area.Type: ApplicationFiled: July 9, 2019Publication date: August 26, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Yang Hyun JOO, Kang Yeol PARK, Chang Hyuck LEE
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Publication number: 20210263259Abstract: A camera module according to an embodiment includes an image sensor configured to output a plurality of image frames; a lens assembly disposed on the image sensor, the lens assembly forming an optical path of light incident on the image sensor from outside; a controller configured to generate a control signal to adjust at least one of the optical path of the lens assembly or the position of the image sensor relative to the lens assembly; and an image synthesizer configured to synthesize the plurality of image frames to generate a composite image, wherein the composite image has a higher resolution than the plurality of image frames, and wherein the plurality of image frames are respective image frames generated along respectively different optical paths changed by the lens assembly or respective image frames generated by change in the position of the image sensor relative to the lens assembly.Type: ApplicationFiled: November 19, 2018Publication date: August 26, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Eun Sung SEO, Se Kyu LEE, Chang Hyuck LEE
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Publication number: 20210266519Abstract: An image sensor according to an embodiment of the present invention includes: a pixel array in which a plurality of pixels are arrayed in a grid shape, and which converts reflection light signals reflected from an object into electrical signals; an image processor which converts the electrical signals to generate subframes, and extracts pieces of second depth information having a higher resolution than pieces of first depth information extracted from a plurality of the subframes; and a memory for storing the pieces of first depth information, wherein the reflection light signals are input to the pixel array through mutually different optical paths shifted in sub-pixel units of the pixel array, and the memory stores a plurality of the pieces of first depth information that correspond to the mutually different optical paths.Type: ApplicationFiled: June 20, 2019Publication date: August 26, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Seong Ha JANG, Woong LEE, Chang Hyuck LEE
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Publication number: 20210250535Abstract: A camera module according to an embodiment of the present invention includes a lighting unit configured to output an incident light signal to be emitted to an object, a lens unit configured to concentrate a reflected light signal reflected from the object, an image sensor unit configured to generate electric signals from the reflected light signal concentrated by the lens unit, a tilting unit configured to shift an optical path of at least one of the incident light signal and the reflected light signal for each image frame in units of subpixels of the image sensor unit, and an image control unit configured to extract depth information of the object using a phase difference between the incident light signal and the reflected light signal. The image control unit includes an image controller configured to extract the depth information having a higher resolution than a plurality of subframes generated using the electric signals on the basis of the subframes.Type: ApplicationFiled: June 7, 2019Publication date: August 12, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Chang Hyuck LEE, Eun Song KIM, Ji Hyouk CHUNG
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Publication number: 20210235059Abstract: A camera module according to one embodiment of the present invention comprises: a lighting unit for outputting an output light signal emitted at an object; a lens unit including an infrared (IR) filter and at least one sheet of a lens arranged on the IR filter, and condensing an input light signal reflected from the object; a tilting unit for shifting the optical path of the input light signal by controlling the tilt of the IR filter; an image sensor unit for generating an electric signal from the input light signal condensed by the lens unit and shifted by the tilting unit; an image control unit for extracting depth information of the object by using a phase difference between the output light signal and the input light signal received by the image sensor unit; and a detection unit for detecting tilt information of the IR filter and providing the tilt information of the IR filter to the image control unit.Type: ApplicationFiled: June 5, 2019Publication date: July 29, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Eun Song KIM, Seong Ha JANG, Chang Hyuck LEE
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Publication number: 20210223369Abstract: An optical device provided by the present invention can comprise: a light transmitting unit for generating a first beam for photographing a certain area; a light receiving unit for sensing a second beam returning from the certain area; a light separating unit for distinguishing and transmitting the first beam from the second beam; and a detection unit including a micro electro-mechanical system mirror (MEMS mirror) for transmitting the first beam by changing an optical axis up to a first steering angle, and for receiving the second beam.Type: ApplicationFiled: April 5, 2021Publication date: July 22, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Chang Hyuck LEE, Young Seop MOON
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Publication number: 20210181413Abstract: An optical array waveguide grating-type multiplexer and demultiplexer according to an embodiment of the present invention comprise: a first substrate, a plurality of first waveguides disposed on the first substrate to be superposed in the vertical direction, which is the thickness direction of the first substrate; a 1-1st cladding layer disposed between the first substrate and a 1-1st waveguide, which is nearest to the first substrate among the plurality of first waveguides; a 1-2nd cladding layer disposed between the plurality of first waveguides; and a 1-3rd cladding layer disposed on a 1-2nd waveguide, which is furthest from the first substrate among the plurality of first waveguides.Type: ApplicationFiled: March 2, 2021Publication date: June 17, 2021Applicant: LG INNOTEK CO., LTD.Inventors: Lee Im KANG, Chang Hyuck LEE
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Publication number: 20210166408Abstract: A camera module according to one embodiment of the present invention comprises: an illumination unit for outputting a signal of incident light irradiated to an object; a lens unit for collecting a signal of reflection light reflected from the object, an image sensor unit for generating an electric signal from a reflection light signal collected by the lens unit, a tilting unit for shifting an optical path of the reflection light signal, and an image control unit for extracting a depth map of the object by using a phase difference between the incident light signal with respect to a frame having shifted by the tilting unit and the reflection light signal received by the image sensor unit, wherein the lens unit is disposed on the image sensor unit and includes an infrared (IR) filter disposed on the image sensor unit and at least one lens disposed on the infrared filter, and the tilting unit controls tilt of the infrared filter.Type: ApplicationFiled: April 12, 2019Publication date: June 3, 2021Inventors: Eun Song KIM, Woong LEE, Chang Hyuck LEE
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Patent number: 10996321Abstract: An optical device provided by the present invention can comprise: a light transmitting unit for generating a first beam for photographing a certain area; a light receiving unit for sensing a second beam returning from the certain area; a light separating unit for distinguishing and transmitting the first beam from the second beam; and a detection unit including a micro electro-mechanical system mirror (MEMS mirror) for transmitting the first beam by changing an optical axis up to a first steering angle, and for receiving the second beam.Type: GrantFiled: August 3, 2016Date of Patent: May 4, 2021Assignee: LG INNOTEK CO., LTD.Inventors: Chang Hyuck Lee, Young Seop Moon