CH250917A - Device for mounting removable accessories on a photographic lens. - Google Patents

Device for mounting removable accessories on a photographic lens.

Info

Publication number
CH250917A
CH250917A CH250917DA CH250917A CH 250917 A CH250917 A CH 250917A CH 250917D A CH250917D A CH 250917DA CH 250917 A CH250917 A CH 250917A
Authority
CH
Switzerland
Prior art keywords
accessory
lens
hand
photographic lens
ring
Prior art date
Application number
Other languages
French (fr)
Inventor
Pignons S A
Original Assignee
Pignons Sa
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 Pignons Sa filed Critical Pignons Sa
Publication of CH250917A publication Critical patent/CH250917A/en

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/02Bodies
    • G03B17/12Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets

Description

  

      Dispositif    de montage     d'accessoires    amovibles sur un     objectif    photographique.    L'objet de la     présente    invention est un       dispositif    de montage d'accessoires amovibles  sur un objectif     photographique.        Ce        dispositif     est caractérisé par une     bague    présentant, d'une  part, une partie     destinée    à     s'adapter    sur       l'objectif    et, d'autre part,

   un manchon à       baïonnette    destiné à     maintenir    au     moins.    un       accessoire    devant     l'objectif.     



  Le dessin     ci-annexé        représente,    à titre  d'exemple,     une    forme     d'exécution    du dispo  sitif faisant l'objet de l'invention.  



  La     fig.1    en     est    une     coupe        -axiale    et la       fig.    2 une vue en bout. Les     fig.        â,    4     montrent          des        détails.     



  Dans la forme d'exécution     représentée,    le       dispositif    -comprend     une    bague 1 qui s'adapte,  d'une part, par vissage, sur l'embouchure 2  d'un objectif     photographique,    et qui présente,  d'autre part, un     manchon    à     baïonnette    com  prenant     trois    encoches 3 à deux     crans,    dispo  sées à 120' l'une de l'autre:.

   Un anneau de ser  rage 4 porte trois ergots     intérieurs:    5 qui     s'en-          ga.gent    dans les crans des encoches     intérieures     du manchon à baïonnette et dépassent légère  ment à     l'intérieur    .de ce manchon, de façon à  pouvoir retenir un     accessoire    6 en     position    sur       l'objectif.    Un second     anneau    de serrage 4a  analogue     comportant    les ergots 5a     maintient     un second     accessoire    6a.  



  Pour protéger les     accessoires:    6 et 6a,  on les munit de bagues     élastiques    de protec  tion 7<I>et 7a,</I>     fendues,    transversalement, dont le       pourtour    intérieur     correspond    au     pourtour    du  bord de     l'accessoire.       En     fig.    4, des bagues de     diverses    sections  sont     représentées    -en coupe     transversale    (7, 7a,  7b et 7c).  



  Le mode     -d'utilisation    de     ce        dispositif    est  le suivant:  On     visse    la     bague    1 sur l'embouchure 2 de  l'objectif, puis on place     l'aceessoire    voulu 6  devant     l'objectif    -et ou le bloque en position en  le serrant au moyen de l'anneau 4 dont les  ergots 5 se coincent dans le fond     des    encoches.  Pour     enlever        l'accessoire,    il suffit de retirer       l'anneau    et de pencher l'appareil d'une main  pour faire tomber     l'accessoire        dans    l'autre  main.

    



  On peut monter de     cette    façon des     bon-          nettes    d'approche ou     parasoleil,    des     filtres,    etc.  Si les     accessoires        présentent    eux-mêmes  des ergots permettant leur     adaptation    sur le       manchon    à baïonnette de la bague 1, il est       évidemment        inutile    -     d'employer    des anneaux



      Device for mounting removable accessories on a photographic lens. The object of the present invention is a device for mounting removable accessories on a photographic lens. This device is characterized by a ring having, on the one hand, a part intended to fit on the objective and, on the other hand,

   a bayonet sleeve intended to hold at least. an accessory in front of the lens.



  The accompanying drawing represents, by way of example, an embodiment of the device forming the subject of the invention.



  Fig.1 is an axial section and fig. 2 an end view. Figs. â, 4 show details.



  In the embodiment shown, the device -comprises a ring 1 which fits, on the one hand, by screwing, on the mouth 2 of a photographic lens, and which has, on the other hand, a sleeve with bayonet comprising three notches 3 with two notches, arranged 120 'from each other :.

   A clamping ring 4 has three interior pins: 5 which engage in the notches of the interior notches of the bayonet sleeve and protrude slightly inside this sleeve, so as to be able to retain an accessory 6 in position on the lens. A second similar clamping ring 4a comprising the lugs 5a maintains a second accessory 6a.



  To protect the accessories: 6 and 6a, they are fitted with elastic protective rings 7 <I> and 7a, </I> slit transversely, the inner perimeter of which corresponds to the perimeter of the edge of the accessory. In fig. 4, rings of various sections are shown in cross section (7, 7a, 7b and 7c).



  The mode of use of this device is as follows: The ring 1 is screwed onto the mouthpiece 2 of the lens, then the desired accessory 6 is placed in front of the lens -and or lock it in position by tightening it. by means of the ring 4, the pins 5 of which are wedged in the bottom of the notches. To remove the accessory, simply remove the ring and tilt the device with one hand to drop the accessory into the other hand.

    



  In this way, approach lenses or lens hoods, filters, etc. can be mounted. If the accessories themselves have lugs allowing them to be adapted to the bayonet sleeve of the ring 1, it is obviously unnecessary - to use rings

 

Claims (1)

de serrage. REVENDICATION: Dispositif de montage d'accessoires amo vibles sur un objectif photographique, carac térisé par une bague présentant, d'une part, une partie destinée à s'adapter sur l'objectif et, d'autre part, un manchon à baïonnette des tiné à maintenir au moines un accessoire devant l'objectif. SOUS-REVENDICATIONS 1. Clamping. CLAIM: Device for mounting removable accessories on a photographic lens, charac terized by a ring having, on the one hand, a part intended to fit on the lens and, on the other hand, a bayonet sleeve of the tined to keep the monks an accessory in front of the lens. SUB-CLAIMS 1. Dispositif selon la revendication, ca ractérisé en ce que le manchon à baïonnette comprend au moins une encoche à au moins un cran. 2. Dispositif selon la revendication, ca- raGtérnsé par au mains un anneau de serrage portant au moins un ergot intérieur coopé rant avec le manchon à baïonnette, l'ergot dépassa-ut légèrement à l'intérieur du man chon pour maintenir l'accessoire devant l'ob jectif..- 3. Device according to claim, characterized in that the bayonet sleeve comprises at least one notch with at least one notch. 2. Device according to claim, ca- raGtérnsé by hand a clamping ring carrying at least one internal lug cooperating with the bayonet sleeve, the lug protrudes slightly inside the chon sleeve to hold the accessory. in front of the objective ..- 3. Dispositif selon la revendication, ca- ractérisé par une bague élastique fendue transversalement, dont le pourtour intérieur correspond au pourtour du bord d'un acces soire, et destinée à être appliquée sur le bord de cet accessoire pour le protéger. Device according to claim, characterized by an elastic ring split transversely, the inner periphery of which corresponds to the periphery of the edge of an accessory, and intended to be applied to the edge of this accessory in order to protect it.
CH250917D 1945-11-10 1945-11-10 Device for mounting removable accessories on a photographic lens. CH250917A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH250917T 1945-11-10

Publications (1)

Publication Number Publication Date
CH250917A true CH250917A (en) 1947-09-30

Family

ID=4468485

Family Applications (1)

Application Number Title Priority Date Filing Date
CH250917D CH250917A (en) 1945-11-10 1945-11-10 Device for mounting removable accessories on a photographic lens.

Country Status (1)

Country Link
CH (1) CH250917A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108469B (en) * 1959-02-13 1961-06-08 Jenoptik Jena Gmbh Frame for camera lenses
DE1122738B (en) * 1959-09-05 1962-01-25 Hensoldt & Soehne Optik Lens mount

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1108469B (en) * 1959-02-13 1961-06-08 Jenoptik Jena Gmbh Frame for camera lenses
DE1122738B (en) * 1959-09-05 1962-01-25 Hensoldt & Soehne Optik Lens mount

Similar Documents

Publication Publication Date Title
CH234284A (en) Device for using a &#34;portable shower&#34; as a fixed shower.
CH250917A (en) Device for mounting removable accessories on a photographic lens.
CH364539A (en) Device for locating an electrical conductor
CH273894A (en) Adjustable metal support member, in particular struts.
CH259168A (en) Device for fixing a watch movement in a case with a removable bottom.
CH323379A (en) Watch.
CH261672A (en) Waterproof watch box.
CH241956A (en) Waterproof watch box.
CH243389A (en) Waterproof watch box.
CH86606A (en) Device applicable to watches, compasses etc., to protect them against knocks, dust, humidity and theft.
CH228241A (en) Watch movement with dust cover.
CH254582A (en) Timepiece.
CH318508A (en) Watch box
CH316785A (en) Bayonet mounting device, in particular for camera lenses
CH395662A (en) Device for connecting two tubular conduits, in particular a tap and the conduit of a washing machine
CH230220A (en) Waterproof watch box.
CH252167A (en) Waterproof watch box.
CH364419A (en) Body of a motor vehicle
CH290951A (en) Device for mounting a removable case back in the middle of a waterproof watch case.
CH246889A (en) Waterproof watch box.
CH148317A (en) Rear-view mirror device for vehicles, in particular for automobiles.
CH251808A (en) Watchpiece winding crown.
CH214661A (en) Waterproof winding watch.
CH99266A (en) Device for fixing a tie, a ribbon knot, etc.
CH205589A (en) Wristwatch box with device for attaching the bracelet to the box.