Samsung Electronics Co., Ltd.

Ulsan National Institute of Science and Technology

Seoul National University

Yonsei University

Leland Stanford Junior University

Sungkyunkwan University

Korea University Research and Business Foundation

Snu Rdb Foundation

Younggeun Roh

Yeonsang Park

Hyochul Kim

Jaesoong Lee

Unjeong Kim

Jineun Kim

Changwon Lee

Youngzoon Yoon

Chanwook Baik

Sangmo Cheon

Seungmin Yoo

Soojin Park

Suyeon Lee

Byoungho Lee

Jisoo Kyoung

Hyunyong Choi

Moonil Jung

Jaehyun Kwon

Chihun In

Hongseok Lee

Sungwoo Hwang

Mark Luitzen Brongersma

Jinyoung Park

Wonjae Joo

Kyungsang Cho

Woo-Shik Kim

Jaeseok Kim

Youngmo Jeong

Younghee Lee

Alexey Dmitrievich Lantsov

Maxim Vladimirovich Riabko

Sungmo Ahn

Weonkyu Koh

Jinsoo Jeong

Q Han Park

Majid Esfandyarpour

Inhwan Ryu

Hyungjoo Kim

Heonsu Jeon

Hyeyun Jeong

Jiwoon Yeom

An optical filter includes an active filter region including at least one of a spectral filter and a polarizing filter; and a reference filter region configured to sense an amount of light passing through the active filter region, wherein the reference filter region includes a gray filter and at least one of a black filter and a transparent filter, wherein the gray filter has a transmittance that is higher than a transmittance of the black filter and lower than a transmittance of the transparent filter.

Optical filter, and image sensor and electronic device including optical filter

Provided is a spectral filter, and an image sensor and an electronic device each including the spectral filter. The spectral filter includes: at least one first filter having a central wavelength in a first wavelength region; and at least one second filter having a central wavelength in a second wavelength region. The first filter includes: a plurality of first metal reflection layers vertically spaced apart from each other; and at least one first cavity provided between the plurality of first metal reflection layers. The second filter includes: a second metal reflection layer and a Bragg reflection layer vertically spaced apart from each other; and at least one second cavity disposed between the second metal reflection layer and the Bragg reflection layer.

Spectral filter, and image sensor and electronic device including spectral filter

An image acquisition apparatus includes: a first image sensor configured to acquire a first image based on a first wavelength band; a second image sensor configured to acquire a second image based on a second wavelength band of 10 nm to 1,000 nm, and a processor configured to register the first image and the second image, which are respectively output from the first image sensor and the second image sensor, to obtain a registration image based on the first image and the second image, and perform color conversion on the registration image by using an illumination value estimated from the second image.

Image acquisition apparatus including a plurality of image sensors, and electronic apparatus including the image acquisition apparatus

An image sensor and an image processing method of the image sensor are provided. The image sensor includes: a spectral filter including a plurality of unit filters arranged in two dimensions and having different wavelengths; an image sensor including a pixel array receiving light transmitted through the spectral filter and outputting image signals; and a processor performing image processing on image signals output from the pixel array.

Image sensor and image processing method, and electronic device including the image sensor

Provided is a polarization spectral filter, including: a first reflector and a second reflector disposed to face each other in a first direction; and a grating layer disposed between the first reflector and the second reflector. The grating layer includes a plurality of first grating elements and a plurality of second grating elements, the plurality of first grating elements and the plurality of second grating elements being alternately arranged in a second direction perpendicular to the first direction. The plurality of first grating elements include a first dielectric material having a first refractive index. The plurality of second grating elements include a second dielectric material having a second refractive index different from the first refractive index.

Polarization spectral filter, polarization spectral filter array, and polarization spectral sensor

A spectral filter may include a plurality of filter arrays each including a plurality of unit filters having different center wavelengths from each other. Each of the plurality of unit filters may include a first metal reflection layer and a second metal reflection layer which are disposed to be apart from each other; a cavity including a first pattern and being arranged between the first metal reflection layer and the second metal reflection layer; and a lower pattern film being disposed under the first metal reflection layer and including a second pattern. In unit filters having a same center wavelength in each of the plurality of unit filters corresponding to the plurality of filter arrays, the first pattern of the cavity and the second pattern of the lower pattern film may vary according to a position of the unit filters.

Spectral filter, and image sensor and electronic device including the spectral filter

Provided are a dual image sensor including an image sensor including a first area and a second area, the first area and the second area including a plurality of pixels, respectively, a band-pass filter layer provided on the first area, the band-pass filter layer configured to transmit light emitted by an object and having a specific wavelength corresponding to physical property information of the object to the image sensor, and a planarization layer provided on the second area and on the same plane as the band-pass filter layer.

Dual image sensor

Provided are an optical filter and a spectrometer including the optical filter. The optical filter includes at least one first filter element having a first center wavelength of a first wavelength band, and at least one second filter element arranged on a same plane as the at least one first filter element, the at least one second filter element having a second center wavelength of a second wavelength band. The at least one first filter element includes a first bandpass filter including a plurality of first Bragg reflective layers and at least one first cavity provided between the plurality of first Bragg reflective layers, and a first multi-layer provided on the first bandpass filter, the first multi-layer having a center wavelength different than the first center wavelength of the first Bragg reflective layers in order to block light of a wavelength band other than the first wavelength band.

Optical filter and spectrometer including the same

Provided are a spectral filter, a method of manufacturing the same, and an image sensor and an electronic device each including the spectral filter. The spectral filter includes a plurality of first reflective layers provided spaced apart from each other, and a plurality of cavities provided between the plurality of first reflective layers. The cavities have different thicknesses according to a center wavelength. Each of the cavities includes a plurality of etch stop layers having a constant total thickness according to the center wavelength, and at least one dielectric layer having a total thickness which changes according to the center wavelength, wherein the etch stop layers include materials having etch selectivities different than that of the dielectric layer.

A light filter and a spectrometer including the light filter are disclosed. The light filter includes a plurality of filter units having different resonance wavelengths, wherein each of the plurality of filter units includes a cavity layer configured to output light of constructive interference, a Bragg reflection layer provided on a first surface of the cavity layer, and a pattern reflection layer provided on a second surface of the cavity layer opposite to the first surface and configured to cause guided mode resonance of light incident on the pattern reflection layer, the pattern reflection layer including a plurality of reflection structures that are periodically arranged.

Light filter and spectrometer including the same

Provided is a spectral imaging apparatus. The spectral imaging apparatus includes: an optical filter including a plurality of band filter units having different center wavelengths; a sensing device configured to receive light passing through the optical filter; an imaging lens array including a plurality of lens units which respectively correspond to the plurality of band filter units and each implement imaging on the sensing device; and a transparent substrate which is apart from the sensing device. At least one of the optical filter and the imaging lens array is provided on the transparent substrate.

Spectral imaging apparatus

A biological information measuring apparatus, a method of acquiring biological information, and a biological information measuring band are provided. The biological information measuring apparatus may emit light beams in a direction, which is actively or passively adjusted, to a region of interest inside a target object, detect the light beams returning from the target object along trajectories different from one another, and select an optimum light beam among the detected light beams.

Apparatus and method for acquiring biological information and band for acquiring biological information

Growing community of inventors

Seoul, South Korea

Younggeun Roh