JP2021526224A - 移動可能な環境に適合した小型oct用分光計 - Google Patents
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Abstract
Description
y[2]=a1x[1]+a0x[2]+a1x[3]+a2x[4]+a3x[5]
y[3]=a2x[1]+a1x[2]+a0x[3]+a1x[4]+a2x[5]+a3x[6]
y[4]=a3x[1]+a2x[2]+a1x[3]+a0x[4]+a1x[5]+a2x[6]+a3x[7]…
y[n]=a3x[n−3]+a2x[n−2]+a1x[n−1]+a0x[n]+a1x[n+1]+a2x[n+2]+a3x[n+3]…
y[N−3]=a3x[N−6]+a2x[N−5]+a1x[N−4]+a0x[N−3]+a1x[N−2]+a2x[N−1]+a3x[N]
y[N−2]=a3x[N−5]+a2x[N−4]+a1x[N−3]+a0x[N−2]+a1x[N−1]+a2x[N]
y[N−1]=a3x[N−4]+a2x[N−3]+a1x[N−2]+a0x[N−1]+a1x[N]
y[N]=a3x[N−3]+a2x[N−2]+a1x[N−1]+a0x[N]
y[n]:n番目ピクセルで実際に測定された値
a0:一ピクセルで元々測定されるべきの値対比該ピクセルで実際に測定された値の比率
a1:一ピクセルで元々測定されるべきの値対比、1番目に隣接したピクセルで実際に測定された値の比率
a2:一ピクセルで元々測定されるべきの値対比、2番目に隣接したピクセルで実際に測定された値の比率
a3:一ピクセルで元々測定されるべきの値対比、3番目に隣接したピクセルで実際に測定された値の比率
N:ピクセルの個数
「X=A−1Y」
Claims (13)
- ハンドヘルド用小型OCT(optical coherence tomography)分光計において、
分光計光学係モジュールと、
前記分光計光学係モジュールの一側に結合し、前記分光計光学係モジュールから受信した光を電気信号に変換するセンサーを含むセンサーボードと、
前記分光計の外部の他の回路から受信したコントロール信号と電力信号を前記センサーボードに供給し、前記センサーボードから受信した信号を外部の他の回路に伝達するように構成されるコネクターと、を含み、
前記センサーボードは、前記分光計光学係モジュールと共にパッケージングされ、
前記センサーは、前記センサーボードの表面から突出されるように形成され、前記センサーの受光部は、前記パッケージングされた部品の内部に向けるように構成され、前記分光計光学係モジュールから光を収集する、ハンドヘルド用小型OCT分光計。 - 前記センサーの自体は、単一パッケージング工程を介さず、前記センサーボード上に埋設されるように製作される、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記センサーの受光部の上端には、カバーガラスが含まれていない、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記センサーを構成する複数のピクセルは、それぞれ10μm以内の幅を有する、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記センサーは、既に設定された入力電源で動作できるように低電力回路を構成する、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記センサーが受信する光信号の波長成分が有する焦点のサイズを前記ピクセルの幅よりも小さく設計することで、前記光検出感度の劣化を最小化する、請求項4に記載のハンドヘルド用小型OCT分光計。
- 前記センサーボードは、電圧変換部を備え、前記コネクターから既に設定された電圧を受信できない場合、前記電圧変換部を通じて前記コントロール信号から電源供給に必要な他の電圧に変換する、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記センサーボードは、前記センサーから受信したアナログ信号をデジタル信号に変換し、前記コネクターに伝達するアナログデジタル変換器を更に含み、
前記アナログデジタル変換器は、入力を受ける前記アナログ信号の電圧範囲が雑音フロアから前記センサーのFull well capacityに対応する電圧範囲を含むように設定され、
前記Full well capacityは、前記センサー内の各ピクセルで光を受信し、既に設定された時間の間に蓄積できる最大電子の量を意味する、請求項1に記載のハンドヘルド用小型OCT分光計。 - 前記コネクターは、前記アナログデジタル変換器から発生されたデジタル信号を、前記分光計内のメインボードに転送する、請求項1に記載のハンドヘルド用小型OCT分光計。
- 前記分光計は、
前記センサーの各ピクセルで測定した電気信号値に対する補正を行う補正モジュールを更に含み、
前記補正モジュールは、各ピクセルの光電変換特性値が異なることによる前記電気信号値の間の相違と、光入力がない時に、各ピクセルの雑音フロア(noise floor)特性値の相違をそれぞれ減殺できるように補正する、請求項1に記載のハンドヘルド用小型OCT分光計。 - 前記補正モジュールは、
各ピクセルで測定された電気信号値に、各ピクセルのオフセット(OFFSET)値の間の相違を示すファクター(factor)を引算し、前記引算された値に入力光の量に応じて各ピクセルの利得(GAIN)値を示すファクター(factor)を除算することで前記補正を行う、請求項10に記載のハンドヘルド用小型OCT分光計。 - 前記補正モジュールは、
前記分光計の光センサーの漏話(crosstalk)を補正するために、一ピクセルに光信号が入力された時、理想的な電気信号値対比、隣接ピクセルに漏話され、実際に測定される電気信号値の比率、分光計の実際の動作状況で、各ピクセルで実際に測定された電気信号値及び漏話が除去された理想的な状況の電気信号値を用いて、数式を算出し、前記数式を通じて前記各ピクセルで測定される前記電気信号値を補正する、請求項10に記載のハンドヘルド用小型OCT分光計。 - 前記補正モジュールは、
前記ピクセルに入射される前記光信号の非線形(nonlinearity)電気信号値を補正するために、
非線形的な領域での同じ前記光信号に対応する非線形電気信号値及び線形電気信号値をそれぞれ算出及び対応させた順覧表(lookup table)または関数を既に生成し、前記分光計が実際に前記光信号を入射して前記非線形的な電気信号値を受信すれば、前記順覧表または前記関数に基づいて前記線形電気信号値を算出して補正を行う、請求項10に記載のハンドヘルド用小型OCT分光計。
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KR10-2018-0086004 | 2018-07-24 | ||
KR1020180086004A KR102092331B1 (ko) | 2018-06-05 | 2018-07-24 | 이동 가능한 환경에 적합한 소형 oct용 분광기 |
PCT/KR2019/006762 WO2019235829A1 (ko) | 2018-06-05 | 2019-06-04 | 이동 가능한 환경에 적합한 소형 oct용 분광기 |
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EP (1) | EP3791772A4 (ja) |
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KR102436950B1 (ko) | 2020-12-22 | 2022-08-26 | 주식회사 마하테크 | 시료 계측을 위한 분광기 시스템 |
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US11815397B2 (en) | 2023-11-14 |
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US20210116301A1 (en) | 2021-04-22 |
CN112236068A (zh) | 2021-01-15 |
EP3791772A1 (en) | 2021-03-17 |
KR20190138547A (ko) | 2019-12-13 |
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