DE501456C - eyepiece - Google Patents

eyepiece

Info

Publication number
DE501456C
DE501456C DEB143035D DEB0143035D DE501456C DE 501456 C DE501456 C DE 501456C DE B143035 D DEB143035 D DE B143035D DE B0143035 D DEB0143035 D DE B0143035D DE 501456 C DE501456 C DE 501456C
Authority
DE
Germany
Prior art keywords
lens
eyepiece
lenses
eye
air
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
DEB143035D
Other languages
German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DEB143035D priority Critical patent/DE501456C/en
Application granted granted Critical
Publication of DE501456C publication Critical patent/DE501456C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00Eyepieces; Magnifying glasses
    • G02B25/001Eyepieces

Description

Okular Vorliegende Erfindung betrifft eine Verbesserung des in dem Patent 427 048 beschriebenen Okulars. Dieses Patent betrifft ein Okular, welches aus drei in Luft stehenden Gliedern mit oder ohne Kollektivlinse besteht, wobei die Lufträume so bemessen sind und die Augenlinse gleichzeitig so stark durchgebogen ist, @daß der Radius der Bildschale in Achsennähe größer als das i,5fa,che der Brennweite ist.The present invention relates to an improvement in the U.S. Patent 427,048 described eyepiece. This patent relates to an eyepiece which consists of three limbs standing in the air with or without a collective lens, whereby the air spaces are so dimensioned and at the same time the eye lens is so strongly bent is that the radius of the image shell near the axis is greater than 1.5 times the focal length is.

Es hat sich gezeigt, daß bei dem Ausfüh; rungsbeispiel nach dem Hauptpatent die Austrittspupille zu nahe an die Augenlänse zu liegen kommt, so daß man, um das ganze Gesichtsfeld zu überblicken, störend nahe mit dem Auge an genannte Linse herangehen muß.It has been shown that in the execution; example according to the main patent the exit pupil comes to be too close to the eyelid, so that one around the To see the whole field of view, to approach the lens with the eye in a disturbing way got to.

Um zu erreichen, daß bei derselben Bildfehlerkorrektion unter Anwendung von möglichst geringer Linsenanzahl die Austrittjs pupille in genügende Entfernungvon der Augenlinse kommt, wird eine Bauart angewandt, die sich dadurch kennzeichnet, daß die Augenlinse und das .eingeschlossene mittlere Glied einfache Linsen sind und das der Blende und dem Objektiv zugekehrte Glied aus zwei Linsen zusammengekittet ist.To achieve that with the same aberration correction using with the smallest possible number of lenses, the exit pupil is at a sufficient distance from the eye lens comes, a design is used that is characterized by that the lens of the eye and the included middle member are simple lenses and the member of two lenses facing the diaphragm and the objective is cemented together is.

Bei dieser Bauart wird die Korrektion der Verzeichnung der Chromasiey des Astigmatismus, der Koma im wesentlichen durch eine Kittfläche in dem der Blende zugekehrten Glied vorgenommen.With this type of construction, the correction of the distortion is the Chromasiey the astigmatism, the coma essentially through a cemented surface in the diaphragm facing member made.

Im Beispiel ist der Radius der Büdschale gleich dem z,5fac:hen der Geisarntbrenuweite des Okulars. Es gilt also de Beziehung: Beispiel Linse Radien Dicken nD R, .+ 65,0 Objektiv I L1 R 6,o =,57o63 55,0 f -x25,6 2 5I,s5 L2 2,0 1,63745 35,1 R2 - I426,57 Prismen G - 90,6 135741 445 Linse Radien Dicken st D >> r1 - 41,1o6 Ls 3,0 1,71736 29,5 7, + i8,50 _ 915 1,5907o 61,o r3 - 21,74 Okular 1i 0" (Luft) f -156 L> 74+35,15 5,o 1,6o84 59.5 55,00 h o,1 (Luft) r'; -i- 14,30 La 7,4 1,59070 61,o r7 1- 19,80 Die Zunahme der Entfernung der Austrittspupille vom Scheitel der Außenfläche der Augenlinse des Erfindungsgegenstandes gegenüber dem Okular nach dem I1auptpatent beträgt 5o @o.In the example, the radius of the Büdschale is equal to the z.5fac: hen the Geisnung focal length of the eyepiece. So the relationship applies: example Lens radii thicknesses nD R,. + 65.0 Lens I L1 R 6, o =, 57o63 55.0 f -x25.6 2 5I, s5 L2 2.0 1.63745 35 1 R2 - I426.57 Prisms G - 9 0 , 6 135741 445 Lens radii thicknesses st D >> r1 - 41.1o6 Ls 3.0 1.7 1 736 29.5 7, + i8.50 _ 915 1.5907o 61, o r3 - 21.74 1i 0 " eyepiece (air) f -156 L> 74 + 35.15 5, o 1.6084 59.5 55.00 ho, 1 (air) r '; -i- 14.30 La 7.4 1.59070 61, o r 7 1- 19.80 The increase in the distance of the exit pupil from the vertex of the outer surface of the eye lens of the subject matter of the invention compared to the eyepiece according to the main patent is 50%.

Claims (1)

PATRNTANSPRUCH: Okular nach Patent 427 0,18, dadurch gekennzeichnet, daß die Augenünse und das ,eingeschlossene mittlere Glied einfache Linsen sind und das der Blende und diem. Objektiv zugekehrte Glied aus zwei Linsen zusammengekittet ist.PATENT CLAIM: Eyepiece according to Patent 427 0.18, characterized in that that the eyelid and the enclosed middle segment are simple lenses and that of the aperture and that. The lens-facing member of two lenses cemented together is.
DEB143035D 1929-04-10 1929-04-10 eyepiece Expired DE501456C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB143035D DE501456C (en) 1929-04-10 1929-04-10 eyepiece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB143035D DE501456C (en) 1929-04-10 1929-04-10 eyepiece

Publications (1)

Publication Number Publication Date
DE501456C true DE501456C (en) 1930-07-14

Family

ID=7000477

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB143035D Expired DE501456C (en) 1929-04-10 1929-04-10 eyepiece

Country Status (1)

Country Link
DE (1) DE501456C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441036A (en) * 1945-02-14 1948-05-04 Eastman Kodak Co Lens system for telescopes
US2814969A (en) * 1955-03-15 1957-12-03 Zeiss Carl Prism field glass
US2846922A (en) * 1954-08-10 1958-08-12 Zeiss Carl Optical system for a prism binocular
DE1089990B (en) * 1957-03-21 1960-09-29 Zeiss Carl Fa Three-part eyepiece for telescopes and binoculars
FR2509057A1 (en) * 1981-07-01 1983-01-07 Barr & Stroud Ltd AFOCAL TYPE INFRARED TELESCOPE OR TELESCOPE

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441036A (en) * 1945-02-14 1948-05-04 Eastman Kodak Co Lens system for telescopes
US2846922A (en) * 1954-08-10 1958-08-12 Zeiss Carl Optical system for a prism binocular
US2814969A (en) * 1955-03-15 1957-12-03 Zeiss Carl Prism field glass
DE1089990B (en) * 1957-03-21 1960-09-29 Zeiss Carl Fa Three-part eyepiece for telescopes and binoculars
FR2509057A1 (en) * 1981-07-01 1983-01-07 Barr & Stroud Ltd AFOCAL TYPE INFRARED TELESCOPE OR TELESCOPE

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