CA1171707A - Objectif refracteur pour l'oeil - Google Patents

Objectif refracteur pour l'oeil

Info

Publication number
CA1171707A
CA1171707A CA000434248A CA434248A CA1171707A CA 1171707 A CA1171707 A CA 1171707A CA 000434248 A CA000434248 A CA 000434248A CA 434248 A CA434248 A CA 434248A CA 1171707 A CA1171707 A CA 1171707A
Authority
CA
Canada
Prior art keywords
light
eye
knife edge
detector
lens
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA000434248A
Other languages
English (en)
Inventor
William E. Humphrey
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Humphrey Instruments Inc
Original Assignee
Humphrey Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CA000389012A external-priority patent/CA1171706A/fr
Application filed by Humphrey Instruments Inc filed Critical Humphrey Instruments Inc
Priority to CA000434248A priority Critical patent/CA1171707A/fr
Application granted granted Critical
Publication of CA1171707A publication Critical patent/CA1171707A/fr
Expired legal-status Critical Current

Links

Landscapes

  • Eye Examination Apparatus (AREA)
CA000434248A 1980-10-31 1983-08-09 Objectif refracteur pour l'oeil Expired CA1171707A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA000434248A CA1171707A (fr) 1980-10-31 1983-08-09 Objectif refracteur pour l'oeil

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US20253680A 1980-10-31 1980-10-31
US202,536 1980-10-31
CA000389012A CA1171706A (fr) 1980-10-31 1981-10-29 Objectif refracteur pour l'oeil
CA000434248A CA1171707A (fr) 1980-10-31 1983-08-09 Objectif refracteur pour l'oeil

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA000389012A Division CA1171706A (fr) 1980-10-31 1981-10-29 Objectif refracteur pour l'oeil

Publications (1)

Publication Number Publication Date
CA1171707A true CA1171707A (fr) 1984-07-31

Family

ID=27167160

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000434248A Expired CA1171707A (fr) 1980-10-31 1983-08-09 Objectif refracteur pour l'oeil

Country Status (1)

Country Link
CA (1) CA1171707A (fr)

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Legal Events

Date Code Title Description
MKEC Expiry (correction)
MKEX Expiry