CH293920A - Magnifying glass. - Google Patents

Magnifying glass.

Info

Publication number
CH293920A
CH293920A CH293920DA CH293920A CH 293920 A CH293920 A CH 293920A CH 293920D A CH293920D A CH 293920DA CH 293920 A CH293920 A CH 293920A
Authority
CH
Switzerland
Prior art keywords
tube
magnifying glass
lens
frame
glass according
Prior art date
Application number
Other languages
French (fr)
Inventor
Seitz Pierre
Original Assignee
Seitz Pierre
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 Seitz Pierre filed Critical Seitz Pierre
Publication of CH293920A publication Critical patent/CH293920A/en

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B25/00Eyepieces; Magnifying glasses
    • G02B25/002Magnifying glasses
    • G02B25/008Magnifying glasses comprising two or more lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lenses (AREA)

Description

  

      Loupe.            l.a        présente        invention    a pour objet. une  loupe comprenant une monture dans laquelle  est monté de façon coulissante     -Lui    tube por  tant au moins une lentille.  



  Cette loupe est caractérisée par un second  tube vissé dans le premier et portant lui-même  au moins une lentille.  



  Le dessin annexé représente, à titre       d'exemple,    une forme d'exécution de l'objet de  l'invention.  



  <B>La</B>     figure    est une coupe axiale d'une loupe.       La    loupe représentée comprend une mon  ture 1, en matière plastique, dans laquelle est  encastrée, lors du moulage de cette monture,  une pièce tubulaire ?. Un tube 3 est monté  de façon à pouvoir coulisser dans la pièce ?.  Ce tube 3 porte une lentille     I-    fixée au moyen  d'un     ressort-fil    annulaire 5.

   Une vis de blo  cage 6, prenant dans la pièce 2, serre par sa  pointe sur le tube 3 et empêche celui-ci de se  déplacer     axialement    ou     angulairement.    L'inté  rieur du tube 3 est taraudé en î ;     tin    tube 8,  dont     l'extérieur    est fileté, se visse clans     ie          tai-au < lai;e    du tube 3. Ce tube 8 porte une len  tille 9 fixée au     moyen    d'un ressort-fil<B>10.</B> Il    présente, en outre, un collet     8a.    dont la sur  face extérieure est moletée et qui permet de  saisir le tube 8 pour le visser et le dévisser.  



  Cette disposition permet de faire varier  la distance focale des lentilles, de modifier le  grossissement, de la pièce     'a    examiner et  d'adapter la loupe à la vue de la personne  qui l'utilise.



      Magnifying glass. The present invention relates to. a magnifying glass comprising a frame in which is slidably mounted -lui tube por as at least one lens.



  This magnifier is characterized by a second tube screwed into the first and itself carrying at least one lens.



  The appended drawing represents, by way of example, an embodiment of the object of the invention.



  <B> The </B> figure is an axial section of a magnifying glass. The magnifying glass shown comprises a frame 1, of plastic material, in which is embedded, during the molding of this frame, a tubular part ?. A tube 3 is mounted so that it can slide in the room ?. This tube 3 carries a lens I- fixed by means of an annular wire spring 5.

   A blocking screw 6, taking in the part 2, clamps by its point on the tube 3 and prevents the latter from moving axially or angularly. The interior of the tube 3 is tapped at î; tin tube 8, the outside of which is threaded, is screwed into the tai-au <lai; e of the tube 3. This tube 8 carries a len t 9 fixed by means of a wire spring <B> 10. </ B> It also has a collar 8a. the outer surface of which is knurled and which allows the tube 8 to be seized in order to screw and unscrew it.



  This arrangement makes it possible to vary the focal length of the lenses, to modify the magnification of the part to be examined and to adapt the magnifying glass to the sight of the person using it.

 

Claims (1)

REVENDICATION: Loupe comprenant une monture dans la quelle est monté de façon coulissante un tube portant au moins une lentille, caractérisée par un second tube vissé dans le premier et por tant lui-même au moins une lentille. SOUS-REVENDICATIONS: 1. Loupe suivant la revendication, carac térisée par une vis de blocage prenant dans la monture et serrant sur le premier tube pour empêcher ce dernier de se déplacer. <B><U>'</U></B>. Loupe suivant la revendication, carac térisée par le fait que le second tube présente un collet moleté permettant de visser et de dévisser ce second tube. CLAIM: Magnifying glass comprising a frame in which a tube carrying at least one lens is slidably mounted, characterized by a second tube screwed into the first and itself carrying at least one lens. SUB-CLAIMS: 1. Magnifying glass according to claim, charac terized by a locking screw taking in the frame and tightening on the first tube to prevent the latter from moving. <B><U>'</U> </B>. Magnifying glass according to claim, charac terized in that the second tube has a knurled collar making it possible to screw and unscrew this second tube.
CH293920D 1950-12-11 1950-12-11 Magnifying glass. CH293920A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH293920T 1950-12-11
CH284487T 1950-12-11

Publications (1)

Publication Number Publication Date
CH293920A true CH293920A (en) 1953-10-15

Family

ID=25732439

Family Applications (1)

Application Number Title Priority Date Filing Date
CH293920D CH293920A (en) 1950-12-11 1950-12-11 Magnifying glass.

Country Status (1)

Country Link
CH (1) CH293920A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119984A (en) * 1977-05-03 1978-10-10 Cyril Zajac Eyepiece

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4119984A (en) * 1977-05-03 1978-10-10 Cyril Zajac Eyepiece

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