JPS5857081B2 - clock device for eyeglasses - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fully electronic timepiece that displays the time in a part of the visual field of eyeglasses.

TECHNICAL FIELD The present invention relates to a timepiece that displays the time on a portion of the lens or frame of eyeglasses and minimizes the operations necessary to tell the time.

An object of the present invention is to display the time in a part of the field of view of the glasses, thereby eliminating the trouble of having to move one's hands to check the time.

Most conventional portable watches are wristwatches, others are pocket watches, pendants, rings, etc.

All of these portable watches require hand movements in most cases to read the time.

Therefore, it is very inconvenient when both hands are full.

The present application eliminates such drawbacks and displays the time on the frame or part of the lens of the glasses so that the user can always know the time by simply moving the eyeballs in any situation. be.

The present invention will be explained below with reference to the drawings.

FIG. 1 is an overall view of the time display glasses according to the present invention.

1 is an eyeglass frame, 2 is a time display section, 3 is a branch and drive circuit, 4 is a standard signal source, 5 is a drive power source, and 6 is a time adjustment device.

A liquid crystal display, which is thin and has a simple structure, seems to be the most appropriate for the time display.

Further, the time display section is attached to a part of the eyeglass lens that does not obstruct the view or a part of the eyeglass frame.

The frequency division and 1 drive circuit, the standard signal source, the drive power source, and the time adjustment device may be placed anywhere within the eyeglass frame, but it is preferable that they be closer to the time display because they are less susceptible to electrical disturbances.

Moreover, these can be easily embedded in eyeglass frames.

A crystal resonator is commonly used as a standard signal source.

FIG. 2 is an exploded view of the display section.

Reference numeral 7 designates a liquid crystal electrode panel, 8 a spacer, 9 a spectacle lens, 10 a convex lens, and 11 a liquid crystal driving electrode.The electrode panel 7 is on the outside of the glasses, and the convex lens 10 is on the eye side.

A liquid crystal is inserted between the electrode panel 7 and the eyeglass lens 9.

It is preferable that the liquid crystal be as colorless and transparent as possible in order to reduce the sense of strangeness in the display area.

Liquid crystal driving electrodes are provided inside the electrode panel 7 and the spectacle lens 9.

It is desirable that the electrode panel I and the spectacle lens 9 have a filter function that blocks ultraviolet rays to protect the liquid crystal.

The convex lens 10 is for clearly viewing the display section that is very close to the eyes.

FIG. 3 is a diagram showing the relationship between the thickness of a spectacle lens and the focal length of a convex lens.

12 is a liquid crystal. In order to clearly see displays that are very close to the eye, the focal length of the convex lens and the thickness of the eyeglass lens are made equal to obtain parallel light rays.

The arrow in the figure indicates the traveling direction of the light ray.

Ideally, the convex lens 10 is a conventional disc-shaped convex lens with a rectangular cut near the center, but it is difficult to construct a lens with an extremely short focal length like the one shown in Fig. 3. Furthermore, arranging a plurality of microlenses with short focal lengths side by side also causes the problem of complicating the configuration.

On the other hand, the semicylindrical convex lens adopted in FIG. 2 of the present invention is most suitable for the present invention because it can cover the entire display area with a single lens even though it has an extremely short focal length (with respect to the vertical direction). It can be said that it is a suitable lens.

Note that this semicylindrical convex lens has an image forming effect only in the vertical direction and has no image forming effect in the horizontal direction, so although the image may be slightly blurred, in the present invention, the displayed content can be Since it is limited to numbers that represent time, it can be put to practical use.

FIG. 4 shows an embodiment according to the present invention, in which the display section is tilted toward the eyeball in order to make the display easier to see.

FIG. 5 shows another embodiment of the present invention, in which the convex lens 2
The curvature of 0 is changed to make it easier to see from the eyeball direction.

FIG. 6 shows another embodiment according to the present invention, in which the liquid crystal electrode panel 24 is made of a concave lens with a curvature opposite to that of the convex lens 27, so that objects can be detected even in the time display section in the same way as in the other parts of the lens. It is made visible.

FIG. 7 shows another embodiment according to the present invention, in which the convex lens 2
9, two liquid crystal drive electrode panels 31 and 34, and a spacer 32 are attached to the eyeglass frame 30, making it easier to replace the eyeglass lenses 28.

FIG. 8 shows another embodiment of the present invention, in which a time display section is provided on the eyeglass frame to facilitate lens replacement.

In addition to the embodiments described above, a switch may be provided to display the time only when necessary.

Therefore, the present invention makes it possible to display the time within the field of view of glasses with a simple structure, and relieves the user from the trouble of moving his arm to see the time.

[Brief explanation of drawings]

FIG. 1 is an overall view of glasses with a time display. Figure 2 is an exploded view of the display part. FIG. 3 is a diagram showing the thickness of a spectacle lens and the focal length of a convex lens. 4 to 8 show examples of the present invention. 1... Glasses frame, 2... Time display section, 3
... Frequency division and drive circuit, 4... Standard signal source, 5... Drive power supply, 6...9 Time correction device, 7...・・Liquid crystal electrode panel, 8・・
... Spacer, 9 ... Glasses lens, 10
... Convex lens, 11 ... Liquid crystal drive electrode, 12 ... Liquid crystal, 13 ... Glasses lens, 14 ... Convex lens, 15. ...Liquid crystal electrode panel, 16...Spacer, 17...
...Glasses frame, 18...1 LCD electrode panel,
19... Glasses lens, 20... Convex lens, 21... Spacer, 22.23...
・・Glasses frame, 24 ・・・LCD electrode panel, 25
... Spacer, 26 ... Glasses lens, 27 ... Convex lens, 28 ... Glasses lens, 29 ... Convex lens, 30 ... ...
Glasses frame, 31...Front liquid crystal electrode panel, 32
...Spacer, 33...Liquid crystal, 34.
...Rear liquid crystal electrode panel, 35...Eyeglass frame, 36...Time display section.

Claims (1)

[Claims] 1. A display device for displaying time provided on the outside of a spectacle lens, a convex lens provided inside the spectacle lens corresponding to the display device, and a drive circuit for the display device for displaying time. Clock device for eyeglasses.