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1. 发明申请

US20180164607A1 OPHTHALMIC SYSTEM HAVING ADJUSTABLE ACCOMMODATION BASED ON PHOTODETECTION 有权
公开(公告)号：US20180164607A1
公开(公告)日：2018-06-14
申请号：US15891031
申请日：2018-02-07
申请人： Verily Life Sciences LLC
发明人： Robert F. Wiser , Jennifer Han , Brian Otis , Nathan Pletcher
IPC分类号： G02C7/08 , G02B27/00 , G02C7/04 , A61B3/113 , G02C7/02
CPC分类号： G02C7/083 , A61B3/113 , G02B27/0093 , G02C7/024 , G02C7/04 , G02C7/049
摘要： Techniques and mechanisms for determining an amount of accommodation for an ophthalmic system are described. In an embodiment, the ophthalmic system includes a first circuit and a second circuit, each comprising a respective photodiode. The second circuit is configured to provide a light response profile that is more linear than a light response profile provided by the first circuit. Light sensing by the first circuit results in generation of a first signal indicating a level of ambient light in a surrounding environment. Other light sensing by the second circuit results in a second signal being generated. An amount of accommodation is determined based at least in part on the second signal.

2. 发明授权

US09880401B2 Method, device and system for accessing an eye-mountable device with a user interface 有权
公开(公告)号：US09880401B2
公开(公告)日：2018-01-30
申请号：US14702528
申请日：2015-05-01
申请人： VERILY LIFE SCIENCES LLC
发明人： Nathan Pletcher , Robert F. Wiser , Daniel J. Yeager , Shung-neng Lee
IPC分类号： G02C7/08 , G02C7/04 , G02C11/00 , G06F3/01 , G06F3/0484 , G06F3/0481
CPC分类号： G02C7/083 , G02C7/04 , G02C11/10 , G06F3/013 , G06F3/04812 , G06F3/04842
摘要： Techniques and mechanisms for providing access to an accommodation-capable eye-mountable device via a user interface of an auxiliary device. In an embodiment, the user interface provides prompts for a user of the eye-mountable device to perform various viewing actions, where the eye-mountable device receives from the auxiliary device communications indicating respective times of the viewing actions. Based on the communications, the eye-mountable device generates configuration information indicating a correspondence of respective states of the eye-mountable device to respective characteristics of the viewing actions. In another embodiment, operational modes of the eye-mountable device are defined based on the configuration information.

3. 发明授权

US10416477B2 Ophthalmic system having adjustable accommodation based on photodetection 有权
公开(公告)号：US10416477B2
公开(公告)日：2019-09-17
申请号：US15891031
申请日：2018-02-07
申请人： Verily Life Sciences LLC
发明人： Robert F. Wiser , Jennifer Han , Brian Otis , Nathan Pletcher
IPC分类号： G02C7/02 , G02C7/04 , G02C7/08 , A61B3/113 , G02B27/00
摘要： Techniques and mechanisms for determining an amount of accommodation for an ophthalmic system are described. In an embodiment, the ophthalmic system includes a first circuit and a second circuit, each comprising a respective photodiode. The second circuit is configured to provide a light response profile that is more linear than a light response profile provided by the first circuit. Light sensing by the first circuit results in generation of a first signal indicating a level of ambient light in a surrounding environment. Other light sensing by the second circuit results in a second signal being generated. An amount of accommodation is determined based at least in part on the second signal.

4. 发明授权

US09772510B2 Apparatus, system and method for photodetection with a transimpedance amplifier of an eye-mountable device 有权
公开(公告)号：US09772510B2
公开(公告)日：2017-09-26
申请号：US14842703
申请日：2015-09-01
申请人： VERILY LIFE SCIENCES LLC
发明人： Robert F. Wiser
IPC分类号： G02C7/04 , G02C7/08 , G02C11/00
CPC分类号： G02C7/04 , G02C7/081 , G02C7/083 , G02C11/10
摘要： Techniques and mechanisms to perform photodetection with an eye-mountable device. In an embodiment, the eye-mountable device includes an enclosure material and light sensor circuitry formed therein, the enclosure material to be disposed in or on an eye of a user. The light sensor circuitry comprises a transimpedance amplifier circuit including a differential amplifier, one or more feedback paths coupled across the differential amplifier, a photodiode and a capacitor coupled between the photodiode and an input terminal of the differential amplifier. Incidence of light upon the photodiode results in some charging of the capacitor, where an amplified signal is provided at an output terminal of differential amplifier based on such charging. The capacitor mitigates static power consumption by the photodiode. In another embodiment, the amplified signal is evaluated based on at least two threshold values to detect a direction of gaze by the user.

5. 发明申请

US20170059883A1 APPARATUS, SYSTEM AND METHOD FOR PHOTODETECTION WITH A TRANSIMPEDANCE AMPLIFIER OF AN EYE-MOUNTABLE DEVICE 有权
标题翻译：用于使用可伸缩装置的放大放大器进行光电转换的装置，系统和方法
公开(公告)号：US20170059883A1
公开(公告)日：2017-03-02
申请号：US14842703
申请日：2015-09-01
申请人： VERILY LIFE SCIENCES LLC
发明人： Robert F. Wiser
IPC分类号： G02C7/08 , G02C11/00 , G02C7/04
CPC分类号： G02C7/04 , G02C7/081 , G02C7/083 , G02C11/10
摘要： Techniques and mechanisms to perform photodetection with an eye-mountable device. In an embodiment, the eye-mountable device includes an enclosure material and light sensor circuitry formed therein, the enclosure material to be disposed in or on an eye of a user. The light sensor circuitry comprises a transimpedance amplifier circuit including a differential amplifier, one or more feedback paths coupled across the differential amplifier, a photodiode and a capacitor coupled between the photodiode and an input terminal of the differential amplifier. Incidence of light upon the photodiode results in some charging of the capacitor, where an amplified signal is provided at an output terminal of differential amplifier based on such charging. The capacitor mitigates static power consumption by the photodiode. In another embodiment, the amplified signal is evaluated based on at least two threshold values to detect a direction of gaze by the user.
摘要翻译：用眼睛安装装置进行光电检测的技术和机制。在一个实施例中，眼睛安装的装置包括形成在其中的外壳材料和光传感器电路，所述外壳材料将被布置在使用者的眼睛中或眼睛上。光传感器电路包括跨阻抗放大器电路，其包括差分放大器，耦合在差分放大器两端的一个或多个反馈路径，耦合在光电二极管和差分放大器的输入端之间的电容器。在光电二极管上的光线导致电容器的一些充电，其中在基于这种充电的差分放大器的输出端提供放大的信号。电容器可以缓解光电二极管的静态功耗。在另一个实施例中，基于至少两个阈值来评估放大的信号，以检测用户注视的方向。

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