JPH1130768A - Auxiliary spectacles and spectacles - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the eyesight correction of different kinds even if, for example, a visual line is held rectilinear and comfortable use without laboriousness by providing moving mechanism for moving auxiliary lenses in the longitudinal direction of the lenses within a range where the wearing person's visual line passes the lenses and mounting means for freely attachably and detachably mounting on the spectacles. SOLUTION: The moving mechanisms 3 consist of a sliding frame 6 and a stationary frame 7 holding the frame. Sliding parts 6a, 6b on the rear side fixing the auxiliary lenses 2, 2 hold the lenses so as to slide in the pipes 8, 8 to be slid formed at the front surface of the stationary frame 7. The position fixing of the sliding parts 6a, 6b in the pipes 8, 8 to be slid is executed by the sliding resistance between both of them and the contact resistance based on the energization in the pressing direction by the front end 6b of the sliding frame 6 in the turnback part toward the lower side of the frame. The movement of the auxiliary lenses 2 by the moving mechanisms 3a is executed in the longitudinal direction of the lenses 4a of the spectacles 4 within the range where the wearing person's visual line passes the lenses.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to auxiliary glasses that allow existing glasses to be used as bifocal glasses, and to spectacles that can be used as bifocals.

[0002]

2. Description of the Related Art As for the bifocal glasses as described above, a presbyopia lens portion 102 is formed in a part of a lower portion of a lens 101 as shown in FIG. For this reason, the correction of the visual acuity by the different lens units 102 and 103 can be performed with a single pair of glasses when the line of sight is turned straight ahead and when the line of sight is lowered.

[0003] However, there are many times when it is appropriate to say that it is ugly. In other words, when the distance is suitable for viewing with the presbyopia lens unit 102, the line of sight must be dropped. For example, when you look down at your desk and look at documents on the desk for a while, and try to look at the clock or desk calendar in front of your desk, raise your gaze and slide your glasses by hand or raise your chin. Or had to do. The same is true when going to a word processor or computer after looking at the documents on the desk.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention enables a different type of visual acuity correction to be performed even with a straight line of sight, for example. It is an object to provide such auxiliary glasses and glasses.

[0005] Means for that purpose are an auxiliary lens disposed in front of the lens of the spectacles, and a moving mechanism for moving the auxiliary lens in the vertical direction of the lens within a range where the line of sight of the wearer passes through the lens. And auxiliary means provided with attachment means for detachably attaching to the glasses.

[0006] The auxiliary lens may be pivotally supported so as to be openable and closable in a direction away from the front side of the lens of the spectacles.

[0007] The auxiliary lens may be constituted by a lens for correcting visual acuity having a different property from the lens of the spectacles.

Another means is to provide main glasses having a lens disposed in front of an eyeball of a human body, and to provide an auxiliary lens in front of the lenses of the main glasses, a range in which a line of sight of a wearer passes through the lens. The eyeglasses are arranged so as to be vertically movable in the vertical direction of the lens.

It is preferable that the lens is constituted by a lens for compulsion of visual acuity, and the auxiliary lens is constituted by a lens for correcting visual acuity having a property different from that of the lens.

[0010]

According to the construction of the above-mentioned auxiliary glasses, in use, the auxiliary glasses are attached to separate glasses by the mounting means, and the auxiliary lenses are arranged in front of the lenses of the glasses. Then, the auxiliary lens is moved by the moving mechanism in accordance with the direction of the line of sight of the wearer. For example, if the spectacle lens is for myopia and the auxiliary lens is for presbyopia, the light of the auxiliary lens can be used so that the user does not need to look down when viewing documents on the desk. Move to a position where the axis and the optical axis of the lens coincide. In this case, even if you go to a word processor or computer while looking at the documents,
Does not interfere with operation. When the function and effect of the auxiliary lens are not required, the user may operate the mounting means to remove the auxiliary lens from the glasses.

As described above, by appropriately moving the auxiliary lens as needed, the function and effect of the auxiliary lens can be obtained at an appropriate line-of-sight position through the lens of the spectacles.
In other words, it is possible to use according to the situation, and it is not necessary to forcibly turn the gaze to one side or lift up the glasses by hand as in the related art, so that it is possible to give more weight to the direction of the gaze of the wearer. Therefore, it is comfortable and convenient without any glare when used. In addition, since it is not necessary to turn the gaze to one side, the physical burden is reduced, and the feeling is clearly seen in the eyes. Furthermore, as described above, not only the auxiliary lens for presbyopia, but also various kinds of lenses such as colored ones, and the size and shape of the auxiliary lens are appropriately set to create a desired wearing state. Can respond to various situations and personal preferences.

If the auxiliary lens is pivotally opened and closed in a direction away from the front side of the spectacle lens, the auxiliary lens can be completely removed from the range of the line of sight through the spectacle lens. Therefore, even when the auxiliary glasses are attached, the user can use the glasses in a state where the glasses are normally used as needed.

According to the third aspect of the present invention, the auxiliary lens is formed of a lens for correcting visual acuity having a property different from that of eyeglass lenses, so that it is easy to use as described above, centering on the line of sight of the wearer. It can be multifocal glasses. Note that a plurality of lens units having different degrees may be formed in the auxiliary lens.

According to the spectacles having the above-described configuration, in use, the auxiliary lens on the front side of the lens of the main spectacles is moved in accordance with the direction of the line of sight of the wearer. For example, if the lens of the main body glasses is for myopia and the auxiliary lens is for presbyopia, the auxiliary lens can be used so that the user does not need to look down when viewing documents on the desk. The optical axis moves to a position where the optical axis coincides with the optical axis of the lens. In this case, even if the user goes to a word processor or a personal computer while viewing the documents, the operation is not hindered.

As described above, by appropriately moving the auxiliary lens as needed, the function and effect of the auxiliary lens can be obtained at an appropriate line-of-sight position through the lens of the main body glasses. In other words, it is possible to use according to the situation, and it is not necessary to forcibly turn the gaze to one side or lift up the glasses by hand as in the related art, so that it is possible to give more weight to the direction of the gaze of the wearer. Therefore, it is comfortable and convenient without any glare when used. In addition, since it is not necessary to turn the gaze to one side, the physical burden is reduced, and the feeling is clearly seen in the eyes. Further, as described above, not only the auxiliary lens for the presbyopia but also various lenses such as colored ones, or the size and shape of the auxiliary lens are appropriately set to obtain desired glasses. Can respond to various situations and personal preferences.

According to the fifth aspect of the present invention, it is possible to obtain the multifocal glasses which are easy to use as described above, centering on the line of sight of the wearer. Note that a plurality of lens units having different degrees may be formed in the auxiliary lens.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a perspective view of the auxiliary glasses 1, and includes two auxiliary lenses 2, 2, a moving mechanism 3 for moving the auxiliary lenses 2, 2 in the vertical direction, and as shown in FIGS. Mounting means 5 for removably mounting to another eyeglass 4.

The auxiliary lenses 2, 2 are disposed in front of the lenses 4a, 4a of the other glasses 4, and have lenses of appropriate properties, such as lenses for presbyopia (lenses for near glasses).
And lenses with only colors, lenses with colors and degrees, etc. The shape is set to be substantially the same width as the lens 4a of the spectacles 4, and the vertical length is set to be shorter than the lens 4a of the spectacles 4, that is, about half.

A sliding frame 6 that constitutes the moving mechanism 3 is provided at a position on the opposite side of the two left and right auxiliary lenses 2.
Are fixed integrally. This fixation may be appropriately performed according to the properties of the auxiliary lenses 2 and 2. For example, when the auxiliary lenses 2 and 2 are made of glass, they are not shown,
It is good to fix with screws.

The moving mechanism 3 comprises the above-mentioned sliding frame 6 and a fixed frame 7 for holding the sliding frame. The sliding frame 6 is formed by forming a metal linear body into a gate shape and then moving the upper part downward. It is folded back to form an H-shape in front view, and rear sliding portions 6a, 6a fixing the auxiliary lenses 2, 2 slide inside sliding tubes 8, 8 formed on the front surface of the fixed frame 7. Hold to move. The position of the sliding portions 6a, 6a in the slide tubes 8, 8 is fixed by the sliding resistance between them and the urging in the pressing direction by the folded end 6b downward of the sliding frame 6. This is done by contact resistance based on The movement of the auxiliary lens 2 by the moving mechanism 3 moves the auxiliary lens 2 in the vertical direction of the lens 4a within a range in which the line of sight of the wearer passes through the lens 4a of the eyeglasses 4. It is sufficient that the lens 4a is set so as to move from the lower end portion corresponding portion in the vertical direction to the intermediate portion corresponding portion.

The fixing frame 7 has a gate shape, and the horizontal bar 7a at the upper end serves as a pivot shaft for the front end of the mounting portion body 9 constituting the mounting means 5. The intermediate portion of the horizontal bar portion 7a is formed flat, and as shown in FIG.
Is opened upward from the front side so as to come off from the front side of the lens 4a of the spectacles 4, the state is changed to the intermediate portion 1 of the spring 10.
The pressing force is maintained at 0a. Since the urging force of the spring 10 is constantly applied, an appropriate opening angle can be maintained by the urging force even when the spring 10 is fully opened as described above. The spring 10 is formed by bending and winding a metal linear body, and is used for biasing two holding members 11, 11 pivotally attached to the rear end of the mounting portion main body 9. Thus, the number of parts is reduced.

The holding members 11, 11 are formed in an inverted L-shape when viewed from the front, and are fixed to both sides of the operation piece 12, respectively.
Both ends of the spring 10 are held by the holding members 11, 11, and the end side of the spring 10 is located along the inner surface of the operation piece 12. Right and left two holding pieces 13 are vertically provided on the mounting portion main body 9, and the lower ends of the holding members 11 are provided with springs 1.
The striking force is 0. Nipping members 11, 11
A buffer member 11a is attached to the lower end of the housing.

When the auxiliary glasses 1 thus configured are used, the operation piece 12 and the front end of the mounting member body 9 are pinched to rotate the operation piece 12 against the urging force of the spring 10 when the operation piece 12 is used. As shown in the figure, the holding members 11, 11 and the holding piece 1
3 and 13, the lens 4a of the spectacles 4 is clamped back and forth for mounting. Thereby, the auxiliary lens 2 can be arranged on the front side of the lens 4a of the spectacles 4. After this, and moving mechanism 3
Thereby, the auxiliary lenses 2 and 2 are moved in accordance with the direction of the line of sight that is convenient for the wearer.

For example, when the lens 4a of the spectacles 4 is for myopia and the auxiliary lens 2 is for presbyopia, it is not necessary to turn the line of sight down when viewing documents on the desk. As described above, the optical axis of the auxiliary lens 2 is moved to a position where the optical axis of the lens 4a coincides (see the solid line in FIG. 5). In this case, even if the user goes to a word processor or a personal computer while viewing the documents, the operation is not hindered. When the function and effect of the auxiliary lens 2 are not required, the user may operate the mounting means 5 to remove the auxiliary lens 2 from the glasses.

As described above, by appropriately moving the auxiliary lens 2 as needed, the function and effect of the auxiliary lens 2 can be obtained at an appropriate line-of-sight position passing through the lens 4a of the spectacles 4. In other words, it is possible to use according to the situation, and it is not necessary to forcibly turn the gaze to one side or lift up the glasses by hand as in the related art, so that it is possible to give more weight to the direction of the gaze of the wearer. Therefore, it is comfortable and convenient without any glare when used. In addition, since it is not necessary to turn the gaze to one side, the physical burden is reduced, and the feeling is clearly seen in the eyes. Furthermore, as described above, not only the auxiliary lens 2 for presbyopia but also various lenses such as colored ones, and by appropriately setting the size and shape of the auxiliary lens, a desired wearing state can be obtained. It can be made and can respond to various situations and personal preferences.

Further, the fixed frame 7 is pivotally supported to support the auxiliary lens 2.
Can be opened and closed in a direction away from the front side of the lens 4a of the spectacles 4, so that the auxiliary lens can be completely removed from the range of the line of sight through the lens of the spectacles. The eyeglasses 4 can be used in a state where they are normally used.

Further, as exemplified above, the auxiliary lens 2 is constituted by a lens having the same properties as the lenses of near vision glasses,
By attaching to the spectacles having the lens of the distance spectacles, it is possible to provide the easy-to-use bifocal spectacles centered on the line of sight of the wearer as described above. In addition, when a plurality of lens portions having different degrees are formed on the auxiliary lens 2 or a plurality of focus lens portions are formed, the glasses can be used more widely.

The auxiliary lens 2 by the moving mechanism 3
May be set from a position deviating from the front side of the lens 4a of the spectacles 4 to a position corresponding to an intermediate portion in the vertical direction of the lens 4a of the spectacles 4, and the size of the auxiliary lens 2 may be set to 4a may be set to the same size. Further, when the auxiliary lens 2 is a colored lens, it may be set from the position corresponding to the upper end portion of the lens 4a of the spectacles 4 to the position corresponding to the intermediate portion.

FIG. 6 is a perspective view of spectacles 21 having the same operation and effect as the spectacles 4 to which the auxiliary spectacles 1 described above are attached. The glasses 21 are bridges 24 connecting the rims 23 holding the lenses 22 in the main body glasses 21a.
, Two sliding tubes 25, 25 on the left and right sides are fixed in a C-shape. Inside the sliding tubes 25, 25, sliding rods 27a on both sides of a gate-shaped sliding frame 27 formed of a linear body having a spring property and having auxiliary lenses 26 fixed at both left and right lower ends are slidable. Holding. The moving range of the auxiliary lens 26 is set from the lower end portion corresponding to the vertical direction of the lens 22 of the main body glasses 21a to the intermediate portion. The position is fixed by the sliding resistance between the sliding rod 27a and the sliding pipe 25. The sliding resistance is increased by arranging the slidable tube 25 in a C-shape and by the sliding frame 27 having a spring property.

At the time of use, the horizontal bar 27b at the upper end of the sliding frame 27 is pulled up to raise the auxiliary lens 2.
Moves upward and moves downward by the reverse operation. The description of the operation and effect is substantially the same as that of the previous embodiment, and thus will be omitted.

[Brief description of the drawings]

FIG. 1 is a perspective view of auxiliary glasses.

FIG. 2 is a perspective view of a state in which auxiliary glasses are mounted.

FIG. 3 is a side view of the wearing state of the auxiliary glasses.

FIG. 4 is a longitudinal sectional view of auxiliary glasses.

FIG. 5 is an explanatory diagram of an operation state.

FIG. 6 is a perspective view of spectacles.

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Auxiliary glasses 2 ... Auxiliary lenses 3 ... Movement means 4 ... Eyeglasses 4a ... Lens 5 ... Attachment means 21 ... Eyeglasses 21a ... Main body glasses 22 ... Lens 26 ... Auxiliary lenses

Claims (5)

[Claims] An auxiliary lens disposed in front of a lens of spectacles; a moving mechanism for moving the auxiliary lens in a vertical direction of the lens within a range where a line of sight of a wearer passes through the lens; Auxiliary glasses provided with attachment means for detachably attaching to the glasses. 2. The auxiliary glasses according to claim 1, wherein the auxiliary lenses are pivotally supported so as to be openable and closable in a direction away from the front side of the lenses of the glasses. 3. The eyesight correcting lens according to claim 1, wherein the auxiliary lens has a property different from that of the eyeglass lens.
Or the auxiliary glasses according to claim 2. 4. Main body glasses having a lens disposed on the front side of an eyeball of a human body are provided, and an auxiliary lens is provided on the front side of the lens of the main body glasses within a range where a line of sight of a wearer passes through the lens. Glasses that can be moved up and down in the vertical direction of the lens. 5. The spectacles according to claim 4, wherein said lens is constituted by a lens for forcing, and said auxiliary lens is constituted by a lens for correcting vision having a property different from that of said lens.