WO2004090603A1 - Objectif de microscope apochromatique plan - Google Patents

Objectif de microscope apochromatique plan Download PDF

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Publication number
WO2004090603A1
WO2004090603A1 PCT/EP2004/002892 EP2004002892W WO2004090603A1 WO 2004090603 A1 WO2004090603 A1 WO 2004090603A1 EP 2004002892 W EP2004002892 W EP 2004002892W WO 2004090603 A1 WO2004090603 A1 WO 2004090603A1
Authority
WO
WIPO (PCT)
Prior art keywords
lens
lenses
focal length
positive
negative
Prior art date
Application number
PCT/EP2004/002892
Other languages
German (de)
English (en)
Inventor
Manfred MATTHÄ
Georg Herbst
Original Assignee
Carl Zeiss Jena Gmbh
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 Carl Zeiss Jena Gmbh filed Critical Carl Zeiss Jena Gmbh
Publication of WO2004090603A1 publication Critical patent/WO2004090603A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00—Microscopes
    • G02B21/02—Objectives

Definitions

  • the object of the invention is therefore to develop a plan-apochromatic microscope objective with a numerical aperture in air that is as high as possible, which at the same time requires as few lenses as possible, in order to save manufacturing costs.
  • This object is achieved by a plan-apochromatic microscope objective, which comprises a first, second, third and fourth lens group in order from the object plane.
  • the first lens group with a positive total focal length consists of a first and a second lens, the total focal length of the two lenses being greater than 5 mm and less than 10 mm, the refractive powers of the two lenses differing by a maximum of 30%, and the radii of curvature centers of the two lenses are located on the property side.
  • the second lens group with a total focal length of more than 20 mm consists of a third lens with negative refractive power and a fourth lens with positive refractive power, the third and fourth lenses being cemented together.
  • the third lens group with a total focal length with an amount of more than 30 mm consists of a fifth, sixth, seventh and eighth lens which are cemented to one another and whose individual focal lengths are less than 30 mm in magnitude, the fifth and the seventh Lens has a positive focal length, and the sixth and eighth lenses have a negative focal length.
  • the fourth lens group with a total focal length between -25 mm and -10 mm consists of a ninth lens with a positive focal length and a material whose Abbe number is less than 40, and a tenth lens with a negative focal length.
  • An advantageous embodiment of the microscope objective results from the design data for a objective with the magnification lOOx specified in the subclaim.
  • the tolerances for the radii - specified in Newton rings - are less than 4 and the deviations in lens thicknesses and distances are less than 0.06 mm.
  • the maximum deviations in the refractive indices should not exceed 5-10 4 , and the relative deviations in the number of refractions should be less than 0.5%.
  • the objective according to the invention has a small number of lenses, in total only ten lenses are required.
  • the numerical aperture reaches the highest possible value in air of 0.95, the image field remains flat and is vignetting-free towards the edge.
  • the colors are apochromatically corrected in the visual range from approx. 430 nm to approx. 700 nm.
  • the image quality is only limited by diffraction over the entire image field area of 25 mm in diameter and an image scale of 100x.
  • the refractive power distribution in the lens enables the lens exit pupil to be displaced into the rear area, which creates better conditions for contrasting methods.
  • the lens has a high level of light transmission in the near ultraviolet range.
  • Fig.l a possible lens construction and Fig.2 transverse aberrations at different wavelengths in the center of the image, in the image zone, and at the edge of the image of a lens designed according to the design data of the subclaim.
  • Fig.l shows a sectional view of the lens according to the invention.
  • the object plane is on the far left and not shown, the closest is a first lens group Gl.
  • This comprises a first lens L1 and a second lens L2.
  • the radii of curvature centers of both lenses Ll and L2 are located on the object side, the total focal length of the first lens group Gl is positive, the total focal length of this group being between 5 mm and 10 mm and the individual powers of the two lenses Ll and L2 differing by no more than 30% ,
  • This is followed by a second lens group G2 with a positive total focal length of more than 20 mm from two lenses L3 and L4 cemented together at a distance of approximately 0.1 mm.
  • the third lens L3 has a negative refractive power
  • the fourth lens L4 has a positive refractive power.
  • a third lens group G3 consisting of a total of four lenses L5, L6, L7 and L8 cemented together. All lenses are cemented together and the refractive power sequence in the third lens group G3 is positive-negative-positive-negative.
  • the amounts of the individual refractive powers of the lenses L5, L6, L7 and L8 are less than 30 mm, but the amount of the total focal length of the third lens group G3 is greater than 30 mm. This is followed by a fourth lens group G4.
  • This consists of two lenses L9 and L10 arranged at a clear distance from one another, the ninth lens L9 having a positive refractive power and the tenth lens L10 having a negative refractive index.
  • the material of the ninth lens L9 has an Abbe number that is less than 40.
  • the total focal length of the fourth lens group G4 is negative and is in the range between -25 mm and -10 mm. The emerging light can now be imaged on a tube.
  • the refractive indices relate to a wavelength of 546.07 nm.
  • the reduction numbers v e were, as in the subclaim, from the equation
  • n e is the refractive index at a wavelength of 546.07 nm
  • n c - the refractive index at a wavelength of 643.85 nm
  • n F the refractive index at a wavelength of 479.99 nm.
  • the transverse aberration ie the color deposits of the opening rays of a light beam from the associated main ray
  • the aberrations in a world length of 546.07 nm ("green”) with a solid line, the aberrations at a wavelength of 643.85 nm ("red”) with a dashed line and the aberrations at a wavelength of 479.99 nm ( "Blue”) is shown with a dotted line.
  • the transverse aberrations for the color "green" at 546.07 nm are given in the meridional course with a solid line and in the sagittal course with a dash-dot line.
  • the gutter error in the sagittal section is indicated on one side as a dash-dot-dot line along the opening coordinate.
  • the channel defect is caused by sagittal coma, which causes the sagittal rays in the image space to span a channel-shaped curved surface.
  • a graduation on the y-axis corresponds to 0.1 mm.
  • the lens has very well corrected values for all wavelengths, which are below the visibility limit over the entire image field. The lens can therefore rightly be called plan-apochromatic.

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Abstract

La présente invention concerne un objectif de microscope apochromatique plan. Un objectif de microscope de ce type comprend quatre groupes de lentilles avec en tout dix lentilles. Le premier groupe - vu depuis le plan objet - comprend deux lentilles avec des centres de courbure radiale situé dans la direction du plan objet et une distance focale globale comprise entre 5 mm et 10 mm, les pouvoirs de réfraction des lentilles variant au maximum de 30 % entre elles. Le second groupe comprend deux lentilles collées ensemble qui suivent - vues depuis le plan objet - la suite de pouvoirs de réfraction 'négatif-positif' avec une distance focale globale de plus de 20 mm. Le troisième groupe comprend quatre lentilles collées ensemble qui suivent la suite de pouvoirs de réfraction 'positif-négatif-positif-négatif' avec une distance focale globale dont la valeur est supérieure à 30 mm, les valeurs des distances focales individuelles étant inférieures à 30 mm. Le quatrième groupe comprend deux lentilles, la lentille orientée vers le plan objet ayant une distance focale positive et l'autre lentille ayant une distance focale négative, et le nombre d'Abbe de la lentille orientée vers le plan objet étant inférieur à 40. La distance focale globale de ce groupe vaut entre -25 mm et -10 mm.
PCT/EP2004/002892 2003-04-10 2004-03-19 Objectif de microscope apochromatique plan WO2004090603A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10316415.4 2003-04-10
DE2003116415 DE10316415B4 (de) 2003-04-10 2003-04-10 Plan-apochromatisches Mikroskopobjektiv

Publications (1)

Publication Number Publication Date
WO2004090603A1 true WO2004090603A1 (fr) 2004-10-21

Family

ID=33016245

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/002892 WO2004090603A1 (fr) 2003-04-10 2004-03-19 Objectif de microscope apochromatique plan

Country Status (2)

Country Link
DE (1) DE10316415B4 (fr)
WO (1) WO2004090603A1 (fr)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE721462C (de) * 1939-12-28 1942-06-10 Zeiss Carl Fa Zusatzsystem zur Kompensierung der chromatischen Vergroesserungsdifferenzen der abbildenden Systeme eines Mikroskops
US4588264A (en) * 1982-11-30 1986-05-13 Nippon Kogaku K. K. Microscope objective lens
JPS61240218A (ja) * 1985-04-17 1986-10-25 Nippon Kogaku Kk <Nikon> 顕微鏡対物レンズ
JPH05119264A (ja) * 1991-10-28 1993-05-18 Olympus Optical Co Ltd 顕微鏡対物レンズ
JPH08286112A (ja) * 1995-04-12 1996-11-01 Olympus Optical Co Ltd 顕微鏡対物レンズ
JPH11160624A (ja) * 1997-12-01 1999-06-18 Union Optical Co Ltd 顕微鏡対物レンズ

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2454994C3 (de) * 1973-11-27 1981-11-19 Société d'Optique, Précision, Electronique & Mécanique-SOPELEM, Paris Mikroskop-Objektiv
US4379623A (en) * 1980-04-28 1983-04-12 Warner Lambert Technologies, Inc. 40x Microscope objective
JP3510401B2 (ja) * 1995-10-05 2004-03-29 オリンパス株式会社 顕微鏡対物レンズ
JPH09138352A (ja) * 1995-11-14 1997-05-27 Nikon Corp 液浸系顕微鏡対物レンズ
JPH09222565A (ja) * 1996-02-15 1997-08-26 Nikon Corp 顕微鏡対物レンズ
US5886827A (en) * 1997-11-14 1999-03-23 Nikon Corporation Microscope objective lens with separated lens groups
JP4754675B2 (ja) * 2000-07-14 2011-08-24 オリンパス株式会社 顕微鏡対物レンズ

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE721462C (de) * 1939-12-28 1942-06-10 Zeiss Carl Fa Zusatzsystem zur Kompensierung der chromatischen Vergroesserungsdifferenzen der abbildenden Systeme eines Mikroskops
US4588264A (en) * 1982-11-30 1986-05-13 Nippon Kogaku K. K. Microscope objective lens
JPS61240218A (ja) * 1985-04-17 1986-10-25 Nippon Kogaku Kk <Nikon> 顕微鏡対物レンズ
JPH05119264A (ja) * 1991-10-28 1993-05-18 Olympus Optical Co Ltd 顕微鏡対物レンズ
JPH08286112A (ja) * 1995-04-12 1996-11-01 Olympus Optical Co Ltd 顕微鏡対物レンズ
JPH11160624A (ja) * 1997-12-01 1999-06-18 Union Optical Co Ltd 顕微鏡対物レンズ

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 011, no. 087 (P - 557) 17 March 1987 (1987-03-17) *
PATENT ABSTRACTS OF JAPAN vol. 017, no. 481 (P - 1604) 31 August 1993 (1993-08-31) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 03 31 March 1997 (1997-03-31) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 11 30 September 1999 (1999-09-30) *

Also Published As

Publication number Publication date
DE10316415B4 (de) 2011-01-05
DE10316415A1 (de) 2004-10-21

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