NL84710C - - Google Patents

Info

Publication number: NL84710C
Authority: NL; Netherlands

Application number

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.)

1954-04-03

Publication of NL84710C publication Critical patent/NL84710C/xx

Classifications

- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
- A61B3/06—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing light sensitivity, e.g. adaptation; for testing colour vision
- A61B3/066—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing light sensitivity, e.g. adaptation; for testing colour vision for testing colour vision

Landscapes

Life Sciences & Earth Sciences (AREA)
Health & Medical Sciences (AREA)
Medical Informatics (AREA)
Biophysics (AREA)
Ophthalmology & Optometry (AREA)
Engineering & Computer Science (AREA)
Biomedical Technology (AREA)
Heart & Thoracic Surgery (AREA)
Physics & Mathematics (AREA)
Molecular Biology (AREA)
Surgery (AREA)
Animal Behavior & Ethology (AREA)
General Health & Medical Sciences (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Spectrometry And Color Measurement (AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Pinball Game Machines (AREA)

NL84710D 1954-04-03 NL84710C (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL785796X		1954-04-03

Publications (1)

Publication Number	Publication Date
NL84710C true NL84710C (en)

Family

ID=19832266

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL84710D NL84710C (en)	1954-04-03

Country Status (5)

Country	Link
US (1)	US2916963A (en)
DE (1)	DE1017742B (en)
FR (1)	FR1121789A (en)
GB (1)	GB785796A (en)
NL (1)	NL84710C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3087378A (en) *	1958-05-08	1963-04-30	World Magnetics Inc	Device for testing eyes
US3425772A (en) *	1966-10-07	1969-02-04	Harold Y Minas	Method for testing the sensitivity of eyes to light
US3807838A (en) *	1973-01-10	1974-04-30	Madison College Foundation Inc	Color vision photometer
US4523852A (en) *	1983-06-09	1985-06-18	Miles Laboratories, Inc.	Color comparison reference standard and method for using same
DE9100027U1 (en) *	1991-01-03	1991-03-21	Oculus Optikgeräte GmbH, 6330 Wetzlar	Anomaloscope
EP3524135A1 (en) *	2018-02-13	2019-08-14	Essilor International (Compagnie Generale D'optique)	Wearable binocular optoelectronic device for measuring light sensitivity threshold of a user

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB189819087A (en) *	1898-09-07	1899-07-08	Charles William Scott Crawley	Illumination Photometer.
US643184A (en) *	1899-04-03	1900-02-13	Joseph Bijur	Apparatus for measuring and comparing illumination.
US1564495A (en) *	1923-04-12	1925-12-08	American Optical Corp	Astigmatic testing device
US1494548A (en) *	1923-05-02	1924-05-20	Western Electric Co	Photometer
FR616604A (en) *	1925-05-25	1927-02-05		Improvements in visual acuity assessment means
US1795752A (en) *	1929-05-16	1931-03-10	Zeiss Carl Fa	Apparatus for testing light sense
DE690378C (en) *	1935-06-04	1940-04-24	Paul Gossen	Arrangement for the gradual screening of a radiation-sensitive material
US2240156A (en) *	1937-07-17	1941-04-29	Jacob B Feldman	Apparatus for determining the minimum light visible
US2224564A (en) *	1938-06-22	1940-12-10	Silva Harry R De	Apparatus for ascertaining vision sensitivities
GB570699A (en) *	1943-11-09	1945-07-18	Kodak Ltd	Improvements in or relating to apparatus for testing colour blindness
US2501446A (en) *	1947-04-08	1950-03-21	Richard W Justice	Light polarizing apparatus for analyzing pictures
US2674153A (en) *	1951-05-22	1954-04-06	Keystone View Company	Vision classifier instrument

0
- NL NL84710D patent/NL84710C/xx active
1955
- 1955-03-31 US US498394A patent/US2916963A/en not_active Expired - Lifetime
- 1955-04-01 GB GB9580/55A patent/GB785796A/en not_active Expired
- 1955-04-04 FR FR1121789D patent/FR1121789A/en not_active Expired
- 1955-04-04 DE DER16404A patent/DE1017742B/en active Pending

Also Published As

Publication number	Publication date
GB785796A (en)	1957-11-06
FR1121789A (en)	1956-08-27
US2916963A (en)	1959-12-15
DE1017742B (en)	1957-10-17

Publication	Publication Date	Title
AT192924B (en)
AT195459B (en)	1958-02-10
FR1066959A (en)	1954-06-11
AT196304B (en)	1958-03-10
AT192359B (en)	1957-10-10
AT197898B (en)	1958-05-27
AT195836B (en)	1958-02-25
AT195345B (en)	1958-01-25
AT196970B (en)	1958-04-10
AT194735B (en)	1958-01-10
AT194723B (en)	1958-01-10
AT196701B (en)	1958-03-25
AT196784B (en)	1958-03-25
AT196786B (en)	1958-03-25
AT195822B (en)	1958-02-25
AT194476B (en)	1958-01-10
AT195943B (en)	1958-02-25
AT194528B (en)	1958-01-10
AT194354B (en)	1958-01-10
AT197095B (en)	1958-04-10
AT197192B (en)	1958-04-10
AT193927B (en)	1957-12-10
AT197683B (en)	1958-05-10
AT195335B (en)	1958-01-25
AT197727B (en)	1958-05-27