公开(公告)号：US3395295A

公开(公告)日：1968-07-30

申请号：US39496164

申请日：1964-09-08

Applicant: STANFORD RESEARCH INST

Inventor： CRANE HEWITT D

IPC: G01L1/16 ,  H03D1/08

CPC classification number: H03D1/08 ,  G01L1/162

公开(公告)号：US3394347A

公开(公告)日：1968-07-23

申请号：US40965564

申请日：1964-11-09

Applicant: STANFORD RESEARCH INST

Inventor： CRANE HEWITT D

IPC: G06K9/18

CPC classification number: G06K9/183

公开(公告)号：US3614214A

公开(公告)日：1971-10-19

申请号：US3614214D

申请日：1970-09-09

Applicant: STANFORD RESEARCH INST

Inventor： CORNSWEET TOM N ,  EILERS GEORGE J ,  CRANE HEWITT D

IPC: A61B3/14 ,  A61B3/15 ,  A61B3/10 ,  G01B9/00

CPC classification number: A61B3/156

Abstract: An optical system and method for photographing an eye fundus in which a fundus camera having a focus control is aligned with the position of an eyelens. An automatic optometer is coupled to the fundus camera and is adapted to sense refractive power of the eye. Means are coupled to the automatic optometer and the fundus camera for controlling the focus of the fundus camera and activating the fundus camera to take a photograph when the focus of the fundus camera matches the instantaneous refractive power of the eye.

公开(公告)号：US3145367A

公开(公告)日：1964-08-18

申请号：US82963959

申请日：1959-07-27

Applicant: STANFORD RESEARCH INST

Inventor： CRANE HEWITT D

IPC: G06K9/22

CPC classification number: G06K9/22

公开(公告)号：US3915015A

公开(公告)日：1975-10-28

申请号：US45184674

申请日：1974-03-18

Applicant: STANFORD RESEARCH INST

Inventor： CRANE HEWITT D ,  TAENZER JON C ,  ANDEEN GERRY B

IPC: G01L5/00 ,  B43K29/08 ,  G01L1/22 ,  G01L5/16 ,  G01L9/04 ,  G01P5/02 ,  G01P13/02 ,  G01P13/04 ,  G06F3/033 ,  G06F3/041 ,  G06K9/24

CPC classification number: G06K9/24 ,  B43K29/08 ,  G01L1/22 ,  G01L5/161 ,  G01L9/04 ,  G01P5/02 ,  G01P13/02 ,  G06F3/03545

Abstract: A writing instrument is provided which generates electrical signals indicative of the force applied and the direction of motion taken by the writing instrument as one is writing with it. The writing instrument uses strain gauges for providing these signals.

Abstract translation: 提供了一种书写工具，其产生指示施加的力的电信号和由书写工具随着其书写而采取的运动方向。 书写工具使用应变计来提供这些信号。

公开(公告)号：US3536383A

公开(公告)日：1970-10-27

申请号：US3536383D

申请日：1967-10-09

Applicant: STANFORD RESEARCH INST

Inventor： CORNSWEET TOM N ,  CRANE HEWITT D

IPC: A61B3/103 ,  A61B3/15 ,  A61B3/10 ,  A61B3/00

CPC classification number: A61B3/103 ,  A61B3/156

公开(公告)号：US3353027A

公开(公告)日：1967-11-14

申请号：US40972664

申请日：1964-11-09

Applicant: STANFORD RESEARCH INST

Inventor： BLISS JAMES C ,  CRANE HEWITT D

IPC: G01S3/789 ,  H04N3/02

CPC classification number: H04N3/02 ,  G01S3/789