US20030137727A1 - Optical magnification device for distance variation - Google Patents

Optical magnification device for distance variation Download PDF

Info

Publication number
US20030137727A1
US20030137727A1 US10/342,752 US34275203A US2003137727A1 US 20030137727 A1 US20030137727 A1 US 20030137727A1 US 34275203 A US34275203 A US 34275203A US 2003137727 A1 US2003137727 A1 US 2003137727A1
Authority
US
United States
Prior art keywords
lens
optical
magnification device
optical magnification
progressive
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.)
Abandoned
Application number
US10/342,752
Other languages
English (en)
Inventor
Ulrich Sander
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.)
Leica Microsystems Schweiz AG
Original Assignee
Leica Microsystems Schweiz AG
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 Leica Microsystems Schweiz AG filed Critical Leica Microsystems Schweiz AG
Assigned to LEICA MICROSYSTEMS (SCHWEIZ) AG reassignment LEICA MICROSYSTEMS (SCHWEIZ) AG ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: SANDER, ULRICH
Publication of US20030137727A1 publication Critical patent/US20030137727A1/en
Priority to US11/380,105 priority Critical patent/US7253948B2/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
    • G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
    • G02B7/06—Focusing binocular pairs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B15/00—Optical objectives with means for varying the magnification
    • G02B15/02—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective
    • G02B15/04—Optical objectives with means for varying the magnification by changing, adding, or subtracting a part of the objective, e.g. convertible objective by changing a part
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/24—Base structure
    • G02B21/241—Devices for focusing
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/08—Auxiliary lenses; Arrangements for varying focal length
    • G02C7/088—Lens systems mounted to spectacles

Definitions

  • the invention concerns an optical magnification device, for example a binocular magnifier or a microscope, which permits a variation in the distance between an observer's eye and an object.
  • an optical magnification device for example a binocular magnifier or a microscope, which permits a variation in the distance between an observer's eye and an object.
  • a property often demanded for microscopes and binocular magnifiers is that the working distance of the optical device be capable of modification within a specific range, typically between 200 mm and 400 mm (also called the “focusing range”). At present, this is achieved by the fact that at least one optical element (for example, a lens element or a lens group) is shifted axially in the optical axis, bringing about a modification in focal length. This usually results in a change in overall length, cf. “Sigma Lens Catalog,” Tokyo 201, 3 pages (no publication data), obtained in year 2000.
  • a presbyopic eye (having a lens no longer capable of accommodation) sees clearly only at one specific distance.
  • This disadvantage is overcome by the use of eyeglasses.
  • Lens elements in the form of a progressive lens have also recently become available.
  • the refractive power of the corrective lens changes laterally (non-axially) over the surface of the eyeglass lens. As the eye looks through the areas of differing refractive power, for example from top to bottom, it can then see clearly at different distances despite poor accommodation.
  • Progressive lenses used today are made of inorganic optical glass materials or of plastics, e.g. polycarbonate, etc.
  • This object is achieved by the use of a progressive or multifocal lens, known per se, in or on the binocular magnifier or in or on the microscope.
  • a progressive lens (described therein) is moved in front of or behind an optical instrument, focal length modification is thus obtained.
  • the movement of the lens is accomplished approximately perpendicular to the optical axis—in contrast to the known methods with axial shifting of the lens elements.
  • the progressive lens should be used in the closest possible proximity to the pupil. This also makes possible easy exchangeability of the progressive or multifocal lens, thus creating different ranges of application.
  • the invention utilizes progressive or multifocal lenses known per se, but for a different purpose, i.e., not for the correction of defective vision but for modification of the focal length of an optical magnification device.
  • FIG. 1 shows a first embodiment of an optical device according to the present invention for distance variation (binocular magnifier);
  • FIG. 2 shows a second embodiment according to the present invention (microscope).
  • FIG. 1 light emitted or reflected by object 7 is directed via a binocular magnifier 5 , joined by immovable connection 6 , to two progressive lenses 3 , guided together by common guidance system 4 , which are arranged in the optical axis 2 of each of the observer's eyes 1 .
  • Light incident on progressive lenses 3 is refracted thereat and deflected to observer's eyes 1 .
  • progressive lenses 3 are arranged displaceably in the lateral (non-axial) direction.
  • the two progressive lenses 3 are displaced in parallel fashion.
  • they are immovably connected to one another by common guidance system 4 , in the context of binocular magnifier 5 shown here.
  • the entire system is embodied, for example in the application depicted here for a binocular magnifier, as an eyeglass frame; adjustment of the progressive lenses can be performed manually, by way of a drive system, or also in motorized fashion.
  • FIG. 2 schematically depicts an optical device according to the present invention for distance variation, with reference to the example of a microscope.
  • a displacement of progressive lens 3 perpendicular to optical axis 2 of the observation region results in differing focal values (from observer's eye 1 to object 7 ).
  • the invention is not limited to stereoscopic beam paths, but rather is suitable also for monocular optical systems.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Microscoopes, Condenser (AREA)
  • Eyeglasses (AREA)
  • Telescopes (AREA)
  • Lenses (AREA)
US10/342,752 2002-01-18 2003-01-15 Optical magnification device for distance variation Abandoned US20030137727A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US11/380,105 US7253948B2 (en) 2002-01-18 2006-04-25 Optical magnification device for distance variation

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10201835A DE10201835A1 (de) 2002-01-18 2002-01-18 Optische Vergrösserungseinrichtung zur Abstandsvariation
DE10201835.9 2002-01-18

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US11/380,105 Continuation US7253948B2 (en) 2002-01-18 2006-04-25 Optical magnification device for distance variation

Publications (1)

Publication Number Publication Date
US20030137727A1 true US20030137727A1 (en) 2003-07-24

Family

ID=7712501

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/342,752 Abandoned US20030137727A1 (en) 2002-01-18 2003-01-15 Optical magnification device for distance variation
US11/380,105 Expired - Fee Related US7253948B2 (en) 2002-01-18 2006-04-25 Optical magnification device for distance variation

Family Applications After (1)

Application Number Title Priority Date Filing Date
US11/380,105 Expired - Fee Related US7253948B2 (en) 2002-01-18 2006-04-25 Optical magnification device for distance variation

Country Status (4)

Country Link
US (2) US20030137727A1 (fr)
EP (1) EP1329761B1 (fr)
JP (1) JP2003215472A (fr)
DE (2) DE10201835A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113612910A (zh) * 2021-07-30 2021-11-05 维沃移动通信（杭州）有限公司 摄像装置和电子设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016122529A1 (de) * 2016-11-22 2018-05-24 Carl Zeiss Microscopy Gmbh Mikroskop zur Abbildung eines Objekts
DE102016122528A1 (de) 2016-11-22 2018-05-24 Carl Zeiss Microscopy Gmbh Verfahren zum Steuern oder Regeln einer Mikroskopbeleuchtung
US11172112B2 (en) 2019-09-09 2021-11-09 Embedtek, LLC Imaging system including a non-linear reflector

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507565A (en) * 1967-02-21 1970-04-21 Optical Res & Dev Corp Variable-power lens and system
US3583790A (en) * 1968-11-07 1971-06-08 Polaroid Corp Variable power, analytic function, optical component in the form of a pair of laterally adjustable plates having shaped surfaces, and optical systems including such components
US3758201A (en) * 1971-07-15 1973-09-11 American Optical Corp Optical system for improved eye refraction
US4457592A (en) * 1981-12-03 1984-07-03 Polaroid Corporation Optical system utilizing a transversely movable plate for focusing
US4925281A (en) * 1988-02-16 1990-05-15 Polaroid Corporation Zoom lens
US5027144A (en) * 1989-07-28 1991-06-25 Fuji Photo Optical Co., Ltd. Lens changer for cameras
US5381266A (en) * 1991-01-09 1995-01-10 Fuji Photo Optical Co., Ltd. Stereoviewer including lenses of varying focal distance
US5535060A (en) * 1991-03-14 1996-07-09 Grinblat; Avi Optical stereoscopic microscope system
US5790309A (en) * 1994-09-29 1998-08-04 Nikon Corporation Zoom lens system capable of shifting an image and compensating back focus variation
US6067195A (en) * 1997-12-02 2000-05-23 Asahi Kogaku Kogyo Kabushiki Kaisha Binoculars having hand-vibration compensation system
US6278558B1 (en) * 1999-09-17 2001-08-21 Rong-Seng Chang Transverse zoom lens set

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305294A (en) 1964-12-03 1967-02-21 Optical Res & Dev Corp Two-element variable-power spherical lens
CA1012392A (en) * 1973-08-16 1977-06-21 American Optical Corporation Progressive power ophthalmic lens
US4055379A (en) * 1973-08-16 1977-10-25 American Optical Corporation Multifocal lens
US4426139A (en) 1981-11-18 1984-01-17 Polycore Optical Pte. Ltd. Progressive addition lens
DE4101780A1 (de) * 1991-01-18 1992-07-23 Zentralinstitut Fuer Optik Und Stirnreflektor
US5644374A (en) * 1992-02-03 1997-07-01 Seiko Epson Corporation Variable focus type eyesight correcting apparatus
AT401582B (de) * 1994-09-22 1996-10-25 Olympus Austria Gmbh Lupenbrille mit variablem fokus, variablem vergrösserungsfaktor und automatischem parallaxausgleich
US6318857B1 (en) * 1998-12-09 2001-11-20 Asahi Kogaku Kogyo Kabushiki Kaisha Variable power spectacles
AT409042B (de) * 1999-11-24 2002-05-27 Life Optics Handel Und Vertrie Sehhilfe

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3507565A (en) * 1967-02-21 1970-04-21 Optical Res & Dev Corp Variable-power lens and system
US3583790A (en) * 1968-11-07 1971-06-08 Polaroid Corp Variable power, analytic function, optical component in the form of a pair of laterally adjustable plates having shaped surfaces, and optical systems including such components
US3758201A (en) * 1971-07-15 1973-09-11 American Optical Corp Optical system for improved eye refraction
US4457592A (en) * 1981-12-03 1984-07-03 Polaroid Corporation Optical system utilizing a transversely movable plate for focusing
US4925281A (en) * 1988-02-16 1990-05-15 Polaroid Corporation Zoom lens
US5027144A (en) * 1989-07-28 1991-06-25 Fuji Photo Optical Co., Ltd. Lens changer for cameras
US5381266A (en) * 1991-01-09 1995-01-10 Fuji Photo Optical Co., Ltd. Stereoviewer including lenses of varying focal distance
US5535060A (en) * 1991-03-14 1996-07-09 Grinblat; Avi Optical stereoscopic microscope system
US5790309A (en) * 1994-09-29 1998-08-04 Nikon Corporation Zoom lens system capable of shifting an image and compensating back focus variation
US6067195A (en) * 1997-12-02 2000-05-23 Asahi Kogaku Kogyo Kabushiki Kaisha Binoculars having hand-vibration compensation system
US6278558B1 (en) * 1999-09-17 2001-08-21 Rong-Seng Chang Transverse zoom lens set

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113612910A (zh) * 2021-07-30 2021-11-05 维沃移动通信（杭州）有限公司 摄像装置和电子设备

Also Published As

Publication number Publication date
EP1329761A3 (fr) 2004-03-03
DE10201835A1 (de) 2003-07-31
US7253948B2 (en) 2007-08-07
EP1329761A2 (fr) 2003-07-23
DE50309391D1 (de) 2008-04-30
US20060245053A1 (en) 2006-11-02
EP1329761B1 (fr) 2008-03-19
JP2003215472A (ja) 2003-07-30

Similar Documents

Publication Publication Date Title
US20190391373A1 (en) Imaging optical system, microscope apparatus including the imaging optical system, and stereoscopic microscope apparatus
JP3524925B2 (ja) 度の可変性能を持つ広角双眼鏡装置
US6201640B1 (en) Magnification viewer
DE50006283D1 (de) Sehhilfe in form einer lupenbrille mit autofokussiereinrichtung
US7586675B2 (en) Optical device with increased depth of field
US9494787B1 (en) Direct view zoom scope with single focal plane and adaptable reticle
US20110261445A1 (en) Microscope apparatus
JPH11160625A (ja) アフォーカルズームシステム
US20030184859A1 (en) Auxiliary binocular device for astronomical telescope
JP3548916B2 (ja) 実体顕微鏡
JP2005157335A (ja) 落射型蛍光立体顕微鏡
JP3544564B2 (ja) 顕微鏡装置
CN1650218A (zh) 观看装置
JPH1026729A (ja) 顕微鏡用対物レンズ及び単対物型双眼実体顕微鏡システム
US6339507B1 (en) Galileo type stereomicroscope and objective lens thereof
US8928975B2 (en) Compact magnifying optical system with wide field of view
JPH08240776A (ja) 少なくとも２本の立体観察光路に対応するズームシステム
US7253948B2 (en) Optical magnification device for distance variation
JPH07140395A (ja) 実体顕微鏡
JPH08286115A (ja) 無限遠補正対物レンズを有する顕微鏡
US4673260A (en) Stereoscopic optical device
KR100486379B1 (ko) 10ｘ 배율의 현미경 접안 렌즈
US7466481B2 (en) Binocular with disparate fields of view
Zimmer Optical designs for stereomicroscopes
KR100236646B1 (ko) 초소형 아포컬 줌 광학계

Legal Events

Date Code Title Description
AS Assignment

Owner name: LEICA MICROSYSTEMS (SCHWEIZ) AG, SWITZERLAND

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SANDER, ULRICH;REEL/FRAME:013679/0363

Effective date: 20021225

STCB Information on status: application discontinuation

Free format text: ABANDONED -- AFTER EXAMINER'S ANSWER OR BOARD OF APPEALS DECISION