Inventor
HENNEQUIN JEAN-CLAUDE
FR5 patents
Patents
5 patentsUS4714330ADec 22, 1987
Device for detecting and/or measuring visual deficiencies
ESSILOR INT8 citations70
US4591246AMay 27, 1986
Ocular parameter measuring device
ESSILOR INT17 citations70
US5033840AJul 23, 1991
Interpupillary distance measuring device with no moving parts
ESSILOR INT12 citations69
US4597651AJul 1, 1986
Apparatus for the detection of eye sight defects and cassette for the operation of such an apparatus
ESSILOR INT8 citations66
US4391527AJul 5, 1983
Process and device for the positioning of an optical measuring instrument and a spectacle frame in relation to each other
ESSILOR INT5 citations59