JP2014170208A - 後ろ向きの瞳孔径センサを有する電子眼科用レンズ - Google Patents
後ろ向きの瞳孔径センサを有する電子眼科用レンズ Download PDFInfo
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- G02C7/081—Ophthalmic lenses with variable focal length
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- A—HUMAN NECESSITIES
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/14—Eye parts, e.g. lenses, corneal implants; Implanting instruments specially adapted therefor; Artificial eyes
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- A—HUMAN NECESSITIES
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- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
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Abstract
【解決手段】 後ろ向きの瞳孔径感知システムは、眼科用レンズ内に組み込まれた電子システムの一部である。電子システムは、1つ又は2つ以上のバッテリ又は他の電源、電力管理回路、1つ又は2つ以上のセンサ、クロック発生回路、制御アルゴニズム及び回路、並びにレンズドライバ回路を含む。後ろ向きの瞳孔径感知システムは、瞳孔位置を判定し、この情報を使用して、眼科用レンズの様々な態様を制御するために利用される。
【選択図】 図1
Description
1.使用者が、陽性まばたき検出のために実行する意図的な「まばたきシーケンス」を定義する。
2.まばたきシーケンスの検出及び無意識のまばたきの拒絶と一致する速度で、入射する光レベルをサンプリングする。
3.サンプリングされた光レベルの履歴を、まばたきテンプレートの値によって画定される、期待される「まばたきシーケンス」と比較する。
4.例えば、移行の間際等、比較の間に無視されるテンプレートの部分を示すために、まばたき「マスク」シーケンスを任意で実装する。これは、プラス又はマイナス1の誤差の時間枠等、使用者が所望の「まばたきシーケンス」から外れることを許容し得、レンズの作動、制御、及び焦点変更のうちの1つ又は2つ以上が起こり得る。更に、これは使用者のまばたきシーケンスのタイミングの変化を許容し得る。
1.0.5秒間まばたき(閉)する
2.0.5秒間開く
3.0.5秒間まばたき(閉)する
blink_template=[1,1,1,0,0,0,0,0,1,1,1,1,1,0,0,0,0,0,1,1]によって得られる。
blink_mask=[1,1,1,0,1,1,1,1,0,1,1,1,1,0,1,1,1,1,0,1]によって得られる。
blink_mask=[1,1,0,0,1,1,1,0,0,1,1,1,0,0,1,1,1,0,0,1]によって得られる。
blink_template=[1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1]によって得られる。
matched=not(blink_mask)│not(xor(blink_template,test_sample))、
式中、test_sampleはサンプル履歴である。整合した値は、まばたきテンプレート、サンプル履歴、及びblink_maskと同じ長さを有するシーケンスである。整合したシーケンスがすべて論理1である場合、優れた整合性が生じる。更に説明すると、not(xor(blink_template,test_sample))は、各不整合性に対して論理0、及び各整合性に対して論理1を与える。反転したマスクで論理和をとること(Logic oring)は、整合したシーケンスの各場所を、マスクが論理0であるような論理1に強制する。したがって、値が論理0として特定されるようなまばたきマスクテンプレートにおける場所がより多いほど、人のまばたきに関してより広い誤差の範囲が許容される。MATLAB(登録商標)は、高級言語による数値計算、可視化及びプログラミングのための処理であり、MathWorks、Natick、Massachusettsの製品である。まばたきマスクテンプレートにおいて論理0の数が大きくなる程、期待される又は意図されるまばたきパターンに整合する誤検出への可能性がより大きくなることにも留意すべきである。多様な期待される又は意図されるまばたきパターンは、1度に1つ又は2つ以上を作動化してデバイスにプログラミングされてもよいことが理解されなければならない。より具体的には、複数の期待される又は意図されるまばたきパターンが、同じ目的又は機能性のために、あるいは異なる又は代替の機能性を実行するために利用されてもよい。例えば、1つのまばたきパターンが、レンズに、意図される物体にズームイン又はズームアウトをさせるために利用されてもよく、一方で、別のまばたきパターンが、例えば、ポンプ等のレンズ上の他のデバイスに治療薬の投与を送達させるために利用されてもよい。
(1) 電動眼科レンズであって、
光学ゾーンと、周縁ゾーンとを含むコンタクトレンズと、
瞳孔径を測定するための前記コンタクトレンズ内に組み込まれた瞳孔径センサシステムであって、少なくとも1つのセンサと、前記少なくとも1つのセンサに動作的に関連付けられ、かつ前記瞳孔の直径を判定し、瞳孔径に基づいて制御信号を出力するように構成されたシステムコントローラと、前記出力制御信号を受信し、所定の機能を実装するように構成された少なくとも1つのアクチュエータとを含む、瞳孔径センサシステムと、を備える、電動眼科レンズ。
(2) 少なくとも1つのセンサが、完全に収縮した瞳孔及び完全に拡張した瞳孔を感知することができるように、前記光学ゾーンにわたって装着された薄いストリップを備える、実施態様1に記載の電動眼科レンズ。
(3) 前記薄いストリップが、目の虹彩に向かって内側に向くように装着された光センサのアレイを備える、実施態様2に記載の電動眼科レンズ。
(4) 前記光センサのアレイが、透明な光センサを備える、実施態様3に記載の電動眼科レンズ。
(5) 光検知器の前記アレイが、薄いシリコン光センサを備える、実施態様3に記載の電動眼科レンズ。
(7) 前記単独センサのアレイが、光センサを備える、実施態様6に記載の電動眼科レンズ。
(8) 瞳孔拡張センサは、前記少なくとも1つのセンサから信号を受信し、ディジタル信号処理を実行し、前記システムコントローラに1つ又は2つ以上の信号を出力するように構成された信号処理装置を更に備える、実施態様1に記載の電動眼科レンズ。
(9) 前記信号処理装置が、関連した記憶装置を備える、実施態様8に記載の電動眼科レンズ。
(10) 前記瞳孔径センサシステムが、電源装置を備える、実施態様1に記載の電動眼科レンズ。
(12) 前記少なくとも1つのセンサが、神経筋活動センサを備える、実施態様1に記載の電動眼科レンズ。
Claims (12)
- 電動眼科レンズであって、
光学ゾーンと、周縁ゾーンとを含むコンタクトレンズと、
瞳孔径を測定するための前記コンタクトレンズ内に組み込まれた瞳孔径センサシステムであって、少なくとも1つのセンサと、前記少なくとも1つのセンサに動作的に関連付けられ、かつ前記瞳孔の直径を判定し、瞳孔径に基づいて制御信号を出力するように構成されたシステムコントローラと、前記出力制御信号を受信し、所定の機能を実装するように構成された少なくとも1つのアクチュエータとを含む、瞳孔径センサシステムと、を備える、電動眼科レンズ。 - 少なくとも1つのセンサが、完全に収縮した瞳孔及び完全に拡張した瞳孔を感知することができるように、前記光学ゾーンにわたって装着された薄いストリップを備える、請求項1に記載の電動眼科レンズ。
- 前記薄いストリップが、目の虹彩に向かって内側に向くように装着された光センサのアレイを備える、請求項2に記載の電動眼科レンズ。
- 前記光センサのアレイが、透明な光センサを備える、請求項3に記載の電動眼科レンズ。
- 光検知器の前記アレイが、薄いシリコン光センサを備える、請求項3に記載の電動眼科レンズ。
- 前記少なくとも1つのセンサが、前記光学ゾーンの周辺周囲に位置付けられた単独センサのアレイを備える、請求項1に記載の電動眼科レンズ。
- 前記単独センサのアレイが、光センサを備える、請求項6に記載の電動眼科レンズ。
- 瞳孔拡張センサは、前記少なくとも1つのセンサから信号を受信し、ディジタル信号処理を実行し、前記システムコントローラに1つ又は2つ以上の信号を出力するように構成された信号処理装置を更に備える、請求項1に記載の電動眼科レンズ。
- 前記信号処理装置が、関連した記憶装置を備える、請求項8に記載の電動眼科レンズ。
- 前記瞳孔径センサシステムが、電源装置を備える、請求項1に記載の電動眼科レンズ。
- 前記少なくとも1つのセンサが、インピーダンスセンサを備える、請求項1に記載の電動眼科レンズ。
- 前記少なくとも1つのセンサが、神経筋活動センサを備える、請求項1に記載の電動眼科レンズ。
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US13/780,135 US9468372B2 (en) | 2013-02-28 | 2013-02-28 | Electronic ophthalmic lens with rear-facing pupil diameter sensor |
US13/780,135 | 2013-02-28 |
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JP2014170208A true JP2014170208A (ja) | 2014-09-18 |
JP2014170208A5 JP2014170208A5 (ja) | 2017-11-30 |
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US (1) | US9468372B2 (ja) |
EP (1) | EP2772787B1 (ja) |
JP (1) | JP6516954B2 (ja) |
KR (1) | KR101992108B1 (ja) |
CN (1) | CN104013382B (ja) |
AU (1) | AU2013204435B2 (ja) |
BR (1) | BR102014004476A2 (ja) |
CA (1) | CA2843125A1 (ja) |
ES (1) | ES2711194T3 (ja) |
HK (1) | HK1201594A1 (ja) |
IL (1) | IL225663B (ja) |
RU (1) | RU2570287C2 (ja) |
SG (1) | SG2013021373A (ja) |
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Also Published As
Publication number | Publication date |
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CN104013382B (zh) | 2018-10-12 |
RU2013128239A (ru) | 2014-12-27 |
AU2013204435A1 (en) | 2014-09-11 |
AU2013204435B2 (en) | 2015-08-27 |
KR101992108B1 (ko) | 2019-06-25 |
TW201433847A (zh) | 2014-09-01 |
ES2711194T3 (es) | 2019-04-30 |
TWI574074B (zh) | 2017-03-11 |
CA2843125A1 (en) | 2014-08-28 |
EP2772787B1 (en) | 2018-12-19 |
BR102014004476A2 (pt) | 2015-12-01 |
JP6516954B2 (ja) | 2019-05-22 |
EP2772787A1 (en) | 2014-09-03 |
US20140240665A1 (en) | 2014-08-28 |
IL225663B (en) | 2018-04-30 |
US9468372B2 (en) | 2016-10-18 |
IL225663A0 (en) | 2013-09-30 |
HK1201594A1 (en) | 2015-09-04 |
CN104013382A (zh) | 2014-09-03 |
KR20140108077A (ko) | 2014-09-05 |
RU2570287C2 (ru) | 2015-12-10 |
SG2013021373A (en) | 2014-09-26 |
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