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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B25/00—Eyepieces; Magnifying glasses
- G02B25/002—Magnifying glasses
- G02B25/008—Magnifying 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)
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)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4119984A (en) * | 1977-05-03 | 1978-10-10 | Cyril Zajac | Eyepiece |
-
1950
- 1950-12-11 CH CH293920D patent/CH293920A/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4119984A (en) * | 1977-05-03 | 1978-10-10 | Cyril Zajac | Eyepiece |
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