CA998867A - Camera viewer with planar ellipsoidal element - Google Patents

Camera viewer with planar ellipsoidal element

Info

Publication number
CA998867A
CA998867A CA125,787A CA125787A CA998867A CA 998867 A CA998867 A CA 998867A CA 125787 A CA125787 A CA 125787A CA 998867 A CA998867 A CA 998867A
Authority
CA
Canada
Prior art keywords
planar
camera viewer
ellipsoidal element
ellipsoidal
viewer
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
CA125,787A
Other languages
English (en)
Other versions
CA125787S (en
Inventor
William T. Plummer
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.)
Polaroid Corp
Original Assignee
Polaroid Corp
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
Application filed by Polaroid Corp filed Critical Polaroid Corp
Application granted granted Critical
Publication of CA998867A publication Critical patent/CA998867A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/48—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus
    • G03B17/50—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with both developing and finishing apparatus
    • G03B17/52—Details of cameras or camera bodies; Accessories therefor adapted for combination with other photographic or optical apparatus with both developing and finishing apparatus of the Land type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Viewfinders (AREA)
  • Lenses (AREA)
CA125,787A 1971-05-07 1971-10-21 Camera viewer with planar ellipsoidal element Expired CA998867A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14125371A 1971-05-07 1971-05-07

Publications (1)

Publication Number Publication Date
CA998867A true CA998867A (en) 1976-10-26

Family

ID=22494879

Family Applications (1)

Application Number Title Priority Date Filing Date
CA125,787A Expired CA998867A (en) 1971-05-07 1971-10-21 Camera viewer with planar ellipsoidal element

Country Status (4)

Country Link
US (1) US3735685A (de)
JP (1) JPS581404B1 (de)
AT (1) AT333593B (de)
CA (1) CA998867A (de)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT332763B (de) * 1972-12-15 1976-10-11 Swarovski & Co Reflexfolie
US3971051A (en) * 1973-06-29 1976-07-20 Polaroid Corporation Focusing screen
US3902794A (en) * 1974-01-02 1975-09-02 Eugene Abrams Fresnell lens
US4070105A (en) * 1976-03-05 1978-01-24 Marzouk Youssef Marzouk Laminar fresnel reduced ophthalmic lens construction
US4229085A (en) * 1977-03-10 1980-10-21 Canon Kabushiki Kaisha Film reader
JPS60138503U (ja) * 1984-02-28 1985-09-13 株式会社エー・アンド・デイ 弁内蔵型送気球
US4723140A (en) * 1986-05-20 1988-02-02 Polaroid Corporation Compact folding camera construction
US4812864A (en) * 1988-02-16 1989-03-14 Polaroid Corporation Camera and two-element viewfinder
US4932970A (en) * 1988-05-17 1990-06-12 Allergan, Inc. Ophthalmic lens
US7546709B2 (en) * 2005-10-03 2009-06-16 Solatube International, Inc. Tubular skylight dome with variable prism
US8974526B2 (en) * 2007-08-27 2015-03-10 Amo Groningen B.V. Multizonal lens with extended depth of focus
US9216080B2 (en) * 2007-08-27 2015-12-22 Amo Groningen B.V. Toric lens with decreased sensitivity to cylinder power and rotation and method of using the same
ATE523810T1 (de) 2008-02-15 2011-09-15 Amo Regional Holdings System, brillenglas und verfahren zur erweiterung der fokustiefe
US8439498B2 (en) 2008-02-21 2013-05-14 Abbott Medical Optics Inc. Toric intraocular lens with modified power characteristics
US8862447B2 (en) 2010-04-30 2014-10-14 Amo Groningen B.V. Apparatus, system and method for predictive modeling to design, evaluate and optimize ophthalmic lenses
EP3824846B1 (de) 2009-12-18 2024-10-30 AMO Groningen B.V. Linse mit begrenzten echeletten
US9817246B2 (en) 2010-12-01 2017-11-14 Amo Groningen B.V. Multifocal lens having an optical add power progression, and a system and method of providing same
US9717628B2 (en) 2012-12-04 2017-08-01 Amo Groningen B.V. Lenses, systems and methods for providing binocular customized treatments to correct presbyopia
CA3013858A1 (en) 2016-02-09 2017-08-17 Amo Groningen B.V. Progressive power intraocular lens, and methods of use and manufacture
AU2017237076B2 (en) 2016-03-23 2021-11-18 Johnson & Johnson Surgical Vision, Inc. Ophthalmic apparatus with corrective meridians having extended tolerance band with freeform refractive surfaces
EP3932368B1 (de) 2016-03-23 2025-02-26 Johnson & Johnson Surgical Vision, Inc. Ophthalmische vorrichtung mit korrekturmeridianen mit erweitertem toleranzband
EP3522771B1 (de) 2016-10-25 2022-04-06 Amo Groningen B.V. Realistische augenmodelle zur konstruktion und bewertung von intraokularlinsen für ein grosses sichtfeld
US10739227B2 (en) 2017-03-23 2020-08-11 Johnson & Johnson Surgical Vision, Inc. Methods and systems for measuring image quality
AU2018376564B2 (en) 2017-11-30 2024-11-14 Amo Groningen B.V. Intraocular lenses that improve post-surgical spectacle independent and methods of manufacturing thereof
US11886046B2 (en) 2019-12-30 2024-01-30 Amo Groningen B.V. Multi-region refractive lenses for vision treatment
WO2022233683A1 (en) 2021-05-05 2022-11-10 Amo Groningen B.V. Ring halometer system and method for quantifying dysphotopsias
AU2022403148A1 (en) 2021-12-03 2024-07-18 Amo Groningen B.V. Lenses having multi-ring design for vision treatment

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2600514A (en) * 1948-02-02 1952-06-17 Percival H Mitchell Elliptical type street lighting reflector incorporating parabolic reflecting areas
US2751816A (en) * 1951-09-12 1956-06-26 John D Strong Paraboloidal reflector
US2914997A (en) * 1956-10-03 1959-12-01 Polaroid Corp Combined range and view finder for cameras
US3523720A (en) * 1968-07-09 1970-08-11 Rollei Werke Franke Heidecke Fresnel field lens for reflex cameras
US3523721A (en) * 1968-12-09 1970-08-11 Zeiss Jena Veb Carl Spherically corrected fresnel lenses and mirrors with partial field correction

Also Published As

Publication number Publication date
ATA916871A (de) 1976-03-15
JPS581404B1 (de) 1983-01-11
US3735685A (en) 1973-05-29
AT333593B (de) 1976-11-25
AU3836172A (en) 1973-08-02

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