DE648955C - Viewfinder with dragonfly - Google Patents

Viewfinder with dragonfly

Info

Publication number
DE648955C
DE648955C DEL88927D DEL0088927D DE648955C DE 648955 C DE648955 C DE 648955C DE L88927 D DEL88927 D DE L88927D DE L0088927 D DEL0088927 D DE L0088927D DE 648955 C DE648955 C DE 648955C
Authority
DE
Germany
Prior art keywords
viewfinder
dragonfly
attached
image
mirror
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
DEL88927D
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.)
HARRAS LANTSCH
Original Assignee
HARRAS LANTSCH
Publication date
Priority to DEL88927D priority Critical patent/DE648955C/en
Application granted granted Critical
Publication of DE648955C publication Critical patent/DE648955C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/14—Viewfinders

Description

Sucher mit Libelle Man hat bei photographischen Apparaten bereits den Sucher mit einer Libelle verbunden.A viewfinder with a dragonfly is already used in photographic equipment connected to the viewfinder with a dragonfly.

Die Erfindung bezweckt nun, das Bild der Libelle möglichst nahe an die Bildebene des Suchers heranzubringen, damit das Auge bei Betrachtung beider Bilder in gleicher Wcise zu akkommodieren ist.The invention now aims to match the image of the dragonfly as closely as possible bring up the image plane of the viewfinder so that the eye can look at both Pictures are to be accommodated in the same toilet.

Die Horizontaleinstellung des Bildes und zugleich der Überblick des gesamten zu photographierende-i Bildes ohne wechselnde Augeneinstellung ist möglich, wenn Sucher und Libelle durch ein optisches Linsensystem gemäß der Erfindung verbunden werden.The horizontal setting of the picture and at the same time the overview of the entire image to be photographed without changing the eye setting is possible, when the viewfinder and dragonfly are connected by an optical lens system according to the invention will.

Eine solche Einrichtung ist auf der Zeichnung in Abb. t von der Seite und in Abb. 2 von oben gesehen schematisch dargestellt.Such a device is on the drawing in Fig. T from the side and shown schematically in Fig. 2 viewed from above.

Ein umgekehrtes Galileisches Fernrohr b, c wird als optischer Sucher ausgebildet und vor der Zerstreuungslinse c ein Spiegeld derart angebracht, daß er an das Sucherbild anschließend das Spiegelbild einer in der Nähe des Okulars b angebrachten Libelle e in de= der Sucherbildeinstellung entsprechenden Entfernung erzeugt. a ist das Auge des Betrachters.An inverted Galilean telescope b, c is designed as an optical viewfinder and a mirror is attached in front of the diverging lens c in such a way that it subsequently generates the mirror image of a dragonfly e attached near the eyepiece b at a distance corresponding to the viewfinder image setting. a is the eye of the beholder.

Die Libelle wird zweckmäßig so angeordnet, daß Licht von außen darauffällt, so daß man sie im Innern des Suchers in dem darin befindlichen Spiegel hell beleuchtet erblicken kann.The dragonfly is expediently arranged in such a way that light falls on it from the outside, so that they are brightly illuminated in the mirror inside the viewfinder can see.

Claims (1)

PATE\TANSPRUCII: Sucher mit Libelle, dadurch gekennzeichnet, daß in einem als umgekehrtes Galileisches Fernrohr ausgebildeten optischen Sucher vor der Zerstreuungslinse (c) ein Spiegel (d) derart angebracht ist, daß er an das Sucherbild anschließend das Spiegelbild einer in der Nähe des Okulars angebrachten Libelle (e) in der der Sucherbildeinstellung entsprechenden Entfernung erzeugt.PATE \ TANSPRUCII: Finder with dragonfly, characterized in that in an optical viewfinder designed as an inverted Galilean telescope in front of the Diverging lens (c) a mirror (d) is attached in such a way that it is attached to the viewfinder image then the mirror image of a dragonfly attached near the eyepiece (e) generated at the distance corresponding to the viewfinder image setting.
DEL88927D Viewfinder with dragonfly Expired DE648955C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL88927D DE648955C (en) Viewfinder with dragonfly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL88927D DE648955C (en) Viewfinder with dragonfly

Publications (1)

Publication Number Publication Date
DE648955C true DE648955C (en) 1937-08-11

Family

ID=7286677

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL88927D Expired DE648955C (en) Viewfinder with dragonfly

Country Status (1)

Country Link
DE (1) DE648955C (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746974C (en) * 1939-03-18 1944-09-01 Kodak Ag Galilean type viewfinder for photographic and cinematographic cameras
DE747497C (en) * 1940-11-14 1953-09-28 Zeiss Ikon Ag See-through viewers for photographic and cinematographic apparatus
US3175457A (en) * 1959-06-03 1965-03-30 Voigtlaender Ag Albada viewfinder with integral reflector and lens means for viewing external pointer
US3182546A (en) * 1959-06-27 1965-05-11 Voigtlaender Ag Albada viewfinder for photographic cameras with optical means including reflector onrear element for viewing external indicator
US3182545A (en) * 1959-06-10 1965-05-11 Voigtlaender Ag Air gap albada viewfinder with lateral mirror and lens on front element for viewing external indicator
US4302088A (en) * 1980-07-14 1981-11-24 Vezie Richard L Camera for recording solar access to a site

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE746974C (en) * 1939-03-18 1944-09-01 Kodak Ag Galilean type viewfinder for photographic and cinematographic cameras
DE747497C (en) * 1940-11-14 1953-09-28 Zeiss Ikon Ag See-through viewers for photographic and cinematographic apparatus
US3175457A (en) * 1959-06-03 1965-03-30 Voigtlaender Ag Albada viewfinder with integral reflector and lens means for viewing external pointer
US3182545A (en) * 1959-06-10 1965-05-11 Voigtlaender Ag Air gap albada viewfinder with lateral mirror and lens on front element for viewing external indicator
US3182546A (en) * 1959-06-27 1965-05-11 Voigtlaender Ag Albada viewfinder for photographic cameras with optical means including reflector onrear element for viewing external indicator
US4302088A (en) * 1980-07-14 1981-11-24 Vezie Richard L Camera for recording solar access to a site

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