BINOCULAR LOUPES

• US 20200133029A1
• Filed: 12/26/2019
• Published: 04/30/2020
• Est. Priority Date: 07/02/2015
• Status: Active Grant

• Current Assignee: Kikuko Yonezawa, Medsoleil Co., Ltd.
• Original Assignee: Medsoleil Co., Ltd.
• Inventors: YONEZAWA, Kikuko
• Granted Patent: US 11,366,342 B2
• Time in Patent Office: Days
• CPC Class Codes: G02C 2200/02 Magnetic means
• CPC Class Codes: G02C 7/086 Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles
• CPC Class Codes: G02C 7/088 Lens systems mounted to spectacles
• CPC Class Codes: G02C 9/00 Attaching auxiliary optical parts auxiliary optical parts per se G02C7/08 - G02C7/16

Abstract

To provide binocular loupes capable of ensuring an optimal focal distance for a user using a simple operation, focus adjustment units disposed in eyepiece units of a pair of left and right loupe bodies of binocular loupes are provided with focus adjustment lenses, and holding rings having magnetic bodies into which the focus adjustment lenses are fitted. The holding rings are mounted in contact with correction lenses constituting optical systems inside the loupe bodies, are drawn and held by magnet rings. By this means, it is possible to readily replace the focus adjustment lenses by mounting the lenses detachably from the loupe bodies, and it is possible to ensure an optimal focal distance.

Claims

1. Binocular loupes that are binocular loupes having an optical system to enlarge an object on hand to look, comprising a pair of loupe bodies, and focus adjustment units disposed in eyepiece units of the loupe bodies,

wherein the focus adjustment units include focus adjustment lenses having magnetic bodies at periphery edges, and holding rings into which the focus adjustment lenses are fitted, and

the focus adjustment lenses are held detachably by the loupe bodies by the magnetic bodies being attracted to magnets.

2. The binocular loupes as described in claim 1, wherein each of the magnets has a shape of a ring, ant that the magnets are fitted into the loupe bodies to come into contact with inner peripheral edges of the eyepiece units of the loupe bodies, and are thereby held.

3. The binocular loupes as described in claim 1, wherein each of the magnets is provided with a lens receiving unit having an inside diameter substantially equal to an outside diameter of the focus adjustment lens, and the lens receiving unit cooperates with the holding ring fitted into the loupe body to come into contact with the peripheral edge of the eyepiece unit to hold the focus adjustment lens.

4. The binocular loupes as described in claim 1, wherein the magnetic body is a ring made of metal into which the focus adjustment lens is fitted.

5. The binocular loupes as described in claim 1, wherein the magnetic body is formed by applying or spraying fine particles of magnetic material with small particle diameters to the surface.

6. The binocular loupes as described in claim 1, wherein the magnetic body is a thin film of magnetic material formed by sputtering and deposition.

7. The binocular loupes as described in claim 1, comprising:

a glasses frame;

tube-shaped holders into which are inserted eyepiece side ends of the loupe bodies;

first attachment units provided in the holders to hold the focus adjustment units detachably; and

second attachment units provided in the holders in end portions on sides opposite to sides on which the focus adjustment units are attached to hold the inserted loupe bodies detachably,

wherein the first attachment units include the magnets that attract the magnetic bodies of the focus adjustment lenses, and

the holders are fitted and fixed to holes formed in carrier lenses for holding the holders respectively attached to left and right rims of the glasses frame.

8. The binocular loupes as described in claim 7, wherein the first attachment units constitute the magnets with pins spaced at regular intervals in peripheral edges of end faces of the holders to which the focus adjustment units are attached,

the holding rings include hole portions into which the pins are inserted,

the magnetic bodies of the focus adjustment lenses are attracted by inserting the hole portions into the pins, and

the focus adjustment units are thereby attached to the holders via the first attachment units.

9. The binocular loupes as described in claim 7, wherein a plurality of types of focus adjustment units with different focal distances by the focus adjustment lenses is beforehand prepared, and one type is selected from among the types and is attached to the holders via the first attachment units.

10. The binocular loupes as described in claim 7, wherein the second attachment units are comprised of screw units formed in outer regions or inner regions of connection side end portions to the focus adjustment units of the holders, and by screwing with screw units formed in inner regions or outer regions of end portions on the holder side of the focus adjustment units, the focus adjustment units and the holders are connected.

11. The binocular loupes as described in claim 7, wherein the second attachment units are comprised of hook-shaped grooves comprised of insertion holes and locking holes formed on insertion sides of the loupe bodies of the holders,

protrusions formed on side faces of the loupe bodies are fitted into the locking holes via the insertion holes, and

the holders and the loupe bodies are thereby connected.

12. The binocular loupes as described in claim 7, wherein the second attachment units are comprised of female screw units formed in inner regions of end portions on insertion sides of the loupe bodies of the holders, and by screwing with male screw units formed in eyepiece side ends of the holders, the loupe bodies and the holders are connected.

13. The binocular loupes as described in claim 7, wherein a plurality of types of loupe bodies with different magnifications by the optical system is beforehand prepared, and one type is selected from among the types, and is attached to the holders via the second attachment units.