Inventor
HUMPHREY WILLIAM E
US31 patents
⚠️ This page may combine multiple inventors who share the name “HUMPHREY WILLIAM E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUMPHREY INSTRUMENTS INC
27 patentsUS4732466AMar 22, 1988
Fundus camera
HUMPHREY INSTRUMENTS INC58 citations96
US4420228ADec 13, 1983
Method and apparatus for analysis of corneal shape
HUMPHREY INSTRUMENTS INC65 citations96
US4730910AMar 15, 1988
Wide angle lens system having flare rejection properties
HUMPHREY INSTRUMENTS INC41 citations92
US4675736AJun 23, 1987
Superimposed analog video image on plotted digital field tester display
HUMPHREY INSTRUMENTS INC31 citations92
US4669835AJun 2, 1987
Objective refractor for the eye
HUMPHREY INSTRUMENTS INC31 citations92
US4650301AMar 17, 1987
Objective refractor for the eye
HUMPHREY INSTRUMENTS INC34 citations92
US4640596AFeb 3, 1987
Objective refractor for the eye
HUMPHREY INSTRUMENTS INC35 citations92
US4540254ASep 10, 1985
Keratometer having peripheral light entrance and exit paths
HUMPHREY INSTRUMENTS INC43 citations92
US4199816AApr 22, 1980
Optical calibration apparatus and procedure
HUMPHREY INSTRUMENTS INC38 citations92
US4043644AAug 23, 1977
Elastically compensated off-axis mirror
HUMPHREY INSTRUMENTS INC36 citations92
US4415239ANov 15, 1983
Reflection rejection spherical optical train composed of tipped lens elements
HUMPHREY INSTRUMENTS INC27 citations82
US4407572AOct 4, 1983
Keratometer
HUMPHREY INSTRUMENTS INC20 citations82
US4180325ADec 25, 1979
Lens meter with automated readout
HUMPHREY INSTRUMENTS INC29 citations82
US4098002AJul 4, 1978
Apparatus for locating inter-pupilary of nose bridge mounted spectacles to lens meter
HUMPHREY INSTRUMENTS INC30 citations82
US3947097AMar 30, 1976
Process and apparatus for astigmatic and spherical subjective testing of the eye
HUMPHREY INSTRUMENTS INC23 citations82
US4707090ANov 17, 1987
Objective refractor for the eye
HUMPHREY INSTRUMENTS INC9 citations74
US4607922AAug 26, 1986
Method for aligning an eye examination instrument with the eye under examination
HUMPHREY INSTRUMENTS INC10 citations74
US4561738ADec 31, 1985
Field tester
HUMPHREY INSTRUMENTS INC17 citations74
US4560259ADec 24, 1985
Objective refractor for the eye
HUMPHREY INSTRUMENTS INC7 citations74
US4182572AJan 8, 1980
Lensmeter utilizing non-parallel light
HUMPHREY INSTRUMENTS INC17 citations74
US4130361ADec 19, 1978
Lens meter without relatively moving optical parts
HUMPHREY INSTRUMENTS INC17 citations74
US4113363ASep 12, 1978
Process and apparatus for astigmatic and spherical subjective testing of the eye
HUMPHREY INSTRUMENTS INC17 citations74
US4015899AApr 5, 1977
Eye test apparatus with physician routed patient input adjustment to variable optical elements
HUMPHREY INSTRUMENTS INC18 citations74
US3964818AJun 22, 1976
Remote stereo microscope with field mirror reflected ocular paths
HUMPHREY INSTRUMENTS INC13 citations74
US4739410AApr 19, 1988
Superimposed analog video image on plotted digital field tester display
HUMPHREY INSTRUMENTS INC7 citations73
US5303022AApr 12, 1994
Lensometer with guided lens movement for progressive addition lens
HUMPHREY INSTRUMENTS INC16 citations72
US4189215AFeb 19, 1980
Method and apparatus for the corneal positioning of a patient's eye
HUMPHREY INSTRUMENTS INC2 citations63
OPTIGON RES & DEV CORP
3 patentsUS3964817AJun 22, 1976
Optical stabilizer having space referenced motion
OPTIGON RES & DEV CORP12 citations73
US3944325AMar 16, 1976
Semi-liquid stabilized optices
OPTIGON RES & DEV CORP8 citations73
US4131333ADec 26, 1978
Optical stabilizer having space referenced motion
OPTIGON RES & DEV CORP5 citations62