JPH0227647B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bifocal eyeglass frame having a progressive multifocal lens. The present invention relates to a spectacle frame in which bifocal glasses can be used without inconvenience by tightening the lens frame 1 and setting the lens frame 1 at an appropriate inclination angle with respect to the eyes.

In general, progressive multifocal lenses have the upper part for distance vision and the lower part for near vision, but because the lens is fixed, the relationship between the lens and the line of sight makes it easy to see distance vision and difficult to see near vision. I couldn't help it.

Conventionally, in order to improve this problem, some attempts have been made to adjust the glasses frame by moving the nose pad and bending the temples. However, this type of eyeglass frame has a delicate structure that increases production costs and is prone to breakdowns, requires familiarity and is cumbersome to wear, and the range of movement of the lenses is limited. A few mm
However, when the lenses were moved upward, the weight of the glasses was concentrated on the nose pad, which put pressure on the bridge of the nose and made it uncomfortable to wear.

The present invention eliminates these drawbacks and provides an eyeglass frame that is easy and comfortable to use.

The structure of the present invention is that the eyeglass frame is roughly divided into two parts, one part is the lens frame 1 part, and the other part is the part where the left and right temples 2 are connected by a bridge 3. is out.

To connect the two parts, a F-shaped body 5 is provided at both ends of the lens frame 1 and held by a cylindrical support 6 provided on the temple 2. Alternatively, fitting grooves 7 are provided at both ends of the lens frame 1, and the tongue-shaped support 8 extending from the end of the temple 2 is fitted into the fitting grooves 7.

A magnet 9 is provided at the lower part of the F-shaped body 5 or the lower part of the insertion groove 7, and a part or all of the cylindrical support 6 or the tongue-shaped support 8 of the temple 2 is made of an iron piece or a magnet. . Furthermore, an angle of about 10° is made at the bottom of the F-shaped body 5 or the insertion groove 7.

Since the present invention has the above-described structure, when viewing for near purposes, that is, when viewing through the lower part of the lens, the lens frame 1 is pushed up while wearing the glasses. Since there is play in the connection between the lens frame 1 and the temple 2, the lens frame 1 can move smoothly. The pushed-up lens frame is attached to the magnet 9 located at the lower part of the F-shaped body 5 or the lower part of the insertion groove 7, and the cylindrical support 6 or the tongue-shaped support 8.
The iron pieces or magnets will be attracted and will not fall off, allowing you to maintain the optimal position for your eyes.

For distance vision, that is, when you see things through the top of the lens,
Push up lens frame 1 while wearing glasses. The attraction force of the magnet 9 is moderate, and by pushing down the lens frame 1 falls to a position suitable for distance use.

When using the lower part of the lens, it is necessary to bring the lower part of the lens closer to the eye in order to see objects near and below, so the lens is tilted 10 degrees closer to the vertical than for distance vision. must pass through the optical center of the lens correctly. Therefore, in the present invention, by setting an angle of about 10 degrees to the lower part of the F-shaped body 5 or the fitting groove 7, the lens frame 1 is automatically tilted forward by about 10 degrees as the lens frame 1 is pushed up. The optimum slope can be obtained.

As explained above, the spectacle frame for progressive multifocal lenses of the present invention moves the entire lens frame 1, but does not have a structure in which minute parts such as operating the nose pad or temples are moved, so failures may occur. difficult,
It is easy to operate, has a wide range of vertical movement, and does not cause discomfort when worn.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a lens frame 1 portion having a double-sided body 5, FIG. 2 is a perspective view of a temple 2 portion having a cylindrical support 6, and FIG. 3 is a cylindrical support for the double-sided body 5. body 6
FIG. 4 is a perspective view of a portion of the lens frame 1 having a fitting groove 7, FIG. 5 is a perspective view of a portion of the temple 2 having a tongue-like support 8, and FIG. 7 is a perspective view of the present invention in which the tongue-shaped support 8 is combined, and FIG. 7 is a sectional view showing the internal structure of the fitting groove 7.
FIG. 8 is a side view showing the state of use of the present invention for distance vision;
FIG. 9 is a side view showing the state of use of the present invention for near use. 1... Lens frame, 2... Vine, 3... Bridge, 4... Klings, 5... F-shaped body, 6...
Cylindrical support, 7... Insertion groove, 8... Tongue-shaped support,
9...Magnet.

Claims (1)

[Claims] 1. Curved lines are formed at both ends of the lens frame 1 so that when the lens frame 1 is moved vertically, the lens frame 1 slides and obtains an inclination angle with respect to the eye. The lens frame 1 and the lens frame 1 are assembled by attaching a double-sided cross-shaped body 5, attaching a cylindrical support body 6 to the left and right temples 2 connected by the bridge 3, and fitting the double-sided body 5 and the cylindrical support body 6. The eyeglass frame is constructed so that the temples 2 connected by the bridge 3 are integrated and have play that allows the lens frame 1 to slide. 2. The eyeglass frame according to claim 1, wherein a magnet 9 is attached to the lower part of the F-shaped body 5 to attract the cylindrical support 6 made using an iron piece or a magnet. 3. Insertion grooves 7 with curved lines cut into both ends of the lens frame 1 are provided at both ends of the lens frame 1 so that when the lens frame 1 is moved in the vertical direction, the lens frame 1 slides and obtains an inclination angle with respect to the eye. By attaching the tongue-like supports 8 to the left and right temples 2 connected by the bridge 3 and fitting the tongue-like supports 8 into the fitting grooves 7, the lens frame 1 and the temples 2 connected to the bridge 3 are assembled. An eyeglass frame that is integrated into one piece but has play that allows the lens frame to slide. 4. The eyeglass frame according to claim 3, wherein a magnet 9 is attached to the lower part of the insertion groove 7 to attract the tongue-shaped support 8 made using an iron piece or a magnet.