CA2281225A1 - Auxiliary lens units for eyeglasses - Google Patents
Auxiliary lens units for eyeglasses Download PDFInfo
- Publication number
- CA2281225A1 CA2281225A1 CA 2281225 CA2281225A CA2281225A1 CA 2281225 A1 CA2281225 A1 CA 2281225A1 CA 2281225 CA2281225 CA 2281225 CA 2281225 A CA2281225 A CA 2281225A CA 2281225 A1 CA2281225 A1 CA 2281225A1
- Authority
- CA
- Canada
- Prior art keywords
- lens unit
- auxiliary lens
- primary
- nose pad
- eyeglass device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C9/00—Attaching auxiliary optical parts
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C2200/00—Generic mechanical aspects applicable to one or more of the groups G02C1/00 - G02C5/00 and G02C9/00 - G02C13/00 and their subgroups
- G02C2200/02—Magnetic means
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
An eyeglass device comprising a primary lens unit and an auxiliary lens unit. The primary lens unit has a pair of nose pad supports for supporting nose pads and the auxiliary lens unit has a pair of connector arms for engaging the nose pad supports. Magnets or other suitable attachment devices are disposed respectively in the nose pad supports and the connector arms to detachably secure the auxiliary lens unit to the primary lens unit.
Description
Title: AUXILIARY LENS UNITS FOR EYEGLASSES
FIELD OF THE INVENTION
The present invention peri:ains to eyeglasses and in particular to auxiliary lens units that may be detachably mounted to eyeglasses.
BACKGROUND OF THE INVENTION
It is known for prescription eyeglasses to be fitted with detachable auxiliary lens units that are tinted for protection against the sun. The auxiliary lens units are typically mounted to the eyeglasses with clips and/or magnets. For instance, U.~S. patent 5,568,207 (Chao) discloses an eyeglass device with auxiliary lenses having arms that rest on the upper surface of side portions of the primary lenses. The arms are equipped with magnets for engaging corresponding magnets located on the primary lenses. U.S. patent 5,737,054 (Chao) discloses an eyeglass device with auxiliary lenses having a middle bridge portion that extends over the bridge of the primary lenses. Corresponding magnets are disposed in the bridge and middle bridge portion to secure the respective members together.
There is a need for an unproved eyeglass device in which auxiliary lens units may be easily fitted to primary lens units in an aesthetically pleasing manner where the auxiliary lens units are supported against movement relative to the primary lens units.
SUMMARY OF THE INVENTION
In one aspect, the present invention provides an eyeglass device comprising:
a primary lens unit for supporting at least one lens, said primary lens unit having a pair of nose pad supports for supporting nose pads;
an auxiliary lens unit for supporting at least one lens, said auxiliary lens unit having a pair of connector arms for engaging said pair ~
. CA 02281225 1999-08-31 of nose pad supports; and at least one attachment device disposed in at least one of said pair of said nose pad supports and said pair of said connector arms to detachably secure said auxiliary lens unit on said primary lens unit.
BRIEF DESCRIPTION OF THE FIGURES
For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made by way of example to the accompanying drawings.
Fig. 1 is a front view of the eyeglass device in accordance with the present invention showing the auxiliary lens unit detached from the primary lens unit;
Fig. 2 is a top view of the eyeglass device of Fig. 1;
Fig. 3 is a front view of the eyeglass device of Fig. 1 showing the auxiliary lens unit attached to the primary lens unit;
Fig. 4 is a sectional view of the eyeglass device as viewed along lines 4-4 of Fig. 2;
Fig. 5 is a partial rear view of the nose pad and nose pad support as viewed along direction arrow 5 of Fig. 4;
Fig. 6 is a sectional view of the eyeglass device as viewed along lines 6-6 of Fig. 2;
Fig. 7 is a front view of a second embodiment of an eyeglass device in accordance with the present invention showing the auxiliary lens unit attached to the primary lens unit;
Fig. 8 is a sectional view of the auxiliary lens unit for the eyeglass device of Fig. 7 as viewed along lines 8-8; and Fig. 9 is a sectional view of the eyeglass device of Fig. 7 as viewed along lines 8-8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
An eyeglass device in accordance with the present invention is shown generally at 20 in the figures. The eyeglass device includes a ~
. . CA 02281225 1999-08-31 primary lens unit 22 and an auxiliary lens unit 24.
The description includes directional terms such as "upper", "lower", "front" and "rear" and variations thereof to refer to elements of the eyeglass device 20. These terms should be understood to relate to the orientation of the eyeglass device when it is worn on the head of a user.
Thus, "upper" refers to a surface that faces generally toward the sky and "lower" refers to a surface that faces generally toward the ground. "Rear"
refers to a surface that faces generally toward the back of the user's head and "front" refers to a surface that faces generally away from the user's face.
Referring to Figures 1 to 5, the primary lens unit 22 includes lenses 26 that are typically prescription lenses to aid a person's eyesight.
The lenses 26 are supported by rims 28 spanned by a bridge 30. A side extension member 32 extends from each side of the primary lens unit 22.
Each side extension member 32 has a laterally extending portion 34 and a rearwardly extending portion 36. Temple arms 38 are pivotally mounted with a hinge 40 to the rearwardly extending portion 36.
Located below the bridge 30 are nose pads 42 supported by nose pad supports 44. Nose pad supports 44 are either integrally formed with rims 28 or mounted to rims 28 by fasteners 46 such as solder, welds, glue or screw fasteners as known in the art. Nose pad 42 preferably has a neck 48 that is either integrally formed with the nose pad 42 or that is separately formed and mounted to or embedded partially within the nose pad 42 as known in the art. The neck 48 is received within a corresponding collar 50 located on the nose pad support 44. A fastener 51 such as a screw fastener or pin extends from one side of the collar 50 to the other side through the neck 48 to pivotally support the nose pad 42 on the nose pad support 44. In this manner, the nose pad 42 may pivot into a position where it sits comfortably against the surface of a person's nose.
Alternatively, nose pad 42 is integrally formed with nose pad support 44.
Referring to Fig. 4, it may be seen that nose pad support 44 is modified from a conventional nose pad support to include a magnet 52.
FIELD OF THE INVENTION
The present invention peri:ains to eyeglasses and in particular to auxiliary lens units that may be detachably mounted to eyeglasses.
BACKGROUND OF THE INVENTION
It is known for prescription eyeglasses to be fitted with detachable auxiliary lens units that are tinted for protection against the sun. The auxiliary lens units are typically mounted to the eyeglasses with clips and/or magnets. For instance, U.~S. patent 5,568,207 (Chao) discloses an eyeglass device with auxiliary lenses having arms that rest on the upper surface of side portions of the primary lenses. The arms are equipped with magnets for engaging corresponding magnets located on the primary lenses. U.S. patent 5,737,054 (Chao) discloses an eyeglass device with auxiliary lenses having a middle bridge portion that extends over the bridge of the primary lenses. Corresponding magnets are disposed in the bridge and middle bridge portion to secure the respective members together.
There is a need for an unproved eyeglass device in which auxiliary lens units may be easily fitted to primary lens units in an aesthetically pleasing manner where the auxiliary lens units are supported against movement relative to the primary lens units.
SUMMARY OF THE INVENTION
In one aspect, the present invention provides an eyeglass device comprising:
a primary lens unit for supporting at least one lens, said primary lens unit having a pair of nose pad supports for supporting nose pads;
an auxiliary lens unit for supporting at least one lens, said auxiliary lens unit having a pair of connector arms for engaging said pair ~
. CA 02281225 1999-08-31 of nose pad supports; and at least one attachment device disposed in at least one of said pair of said nose pad supports and said pair of said connector arms to detachably secure said auxiliary lens unit on said primary lens unit.
BRIEF DESCRIPTION OF THE FIGURES
For a better understanding of the present invention, and to show more clearly how it may be carried into effect, reference will now be made by way of example to the accompanying drawings.
Fig. 1 is a front view of the eyeglass device in accordance with the present invention showing the auxiliary lens unit detached from the primary lens unit;
Fig. 2 is a top view of the eyeglass device of Fig. 1;
Fig. 3 is a front view of the eyeglass device of Fig. 1 showing the auxiliary lens unit attached to the primary lens unit;
Fig. 4 is a sectional view of the eyeglass device as viewed along lines 4-4 of Fig. 2;
Fig. 5 is a partial rear view of the nose pad and nose pad support as viewed along direction arrow 5 of Fig. 4;
Fig. 6 is a sectional view of the eyeglass device as viewed along lines 6-6 of Fig. 2;
Fig. 7 is a front view of a second embodiment of an eyeglass device in accordance with the present invention showing the auxiliary lens unit attached to the primary lens unit;
Fig. 8 is a sectional view of the auxiliary lens unit for the eyeglass device of Fig. 7 as viewed along lines 8-8; and Fig. 9 is a sectional view of the eyeglass device of Fig. 7 as viewed along lines 8-8.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
An eyeglass device in accordance with the present invention is shown generally at 20 in the figures. The eyeglass device includes a ~
. . CA 02281225 1999-08-31 primary lens unit 22 and an auxiliary lens unit 24.
The description includes directional terms such as "upper", "lower", "front" and "rear" and variations thereof to refer to elements of the eyeglass device 20. These terms should be understood to relate to the orientation of the eyeglass device when it is worn on the head of a user.
Thus, "upper" refers to a surface that faces generally toward the sky and "lower" refers to a surface that faces generally toward the ground. "Rear"
refers to a surface that faces generally toward the back of the user's head and "front" refers to a surface that faces generally away from the user's face.
Referring to Figures 1 to 5, the primary lens unit 22 includes lenses 26 that are typically prescription lenses to aid a person's eyesight.
The lenses 26 are supported by rims 28 spanned by a bridge 30. A side extension member 32 extends from each side of the primary lens unit 22.
Each side extension member 32 has a laterally extending portion 34 and a rearwardly extending portion 36. Temple arms 38 are pivotally mounted with a hinge 40 to the rearwardly extending portion 36.
Located below the bridge 30 are nose pads 42 supported by nose pad supports 44. Nose pad supports 44 are either integrally formed with rims 28 or mounted to rims 28 by fasteners 46 such as solder, welds, glue or screw fasteners as known in the art. Nose pad 42 preferably has a neck 48 that is either integrally formed with the nose pad 42 or that is separately formed and mounted to or embedded partially within the nose pad 42 as known in the art. The neck 48 is received within a corresponding collar 50 located on the nose pad support 44. A fastener 51 such as a screw fastener or pin extends from one side of the collar 50 to the other side through the neck 48 to pivotally support the nose pad 42 on the nose pad support 44. In this manner, the nose pad 42 may pivot into a position where it sits comfortably against the surface of a person's nose.
Alternatively, nose pad 42 is integrally formed with nose pad support 44.
Referring to Fig. 4, it may be seen that nose pad support 44 is modified from a conventional nose pad support to include a magnet 52.
The nose pad support 44 may be integrally formed with a housing 54 to receive magnet 52. Alternatively, magnet 52 may be attached to nose pad support 44 with a fastener (not shown) such as solder, welds or glue.
Magnet 52 is oriented to face generally outwardly relative to a person's nose (i.e. the direction opposite to the nose pad 42) in order to receive a corresponding magnet located on the auxiliary lens unit 24 as discussed below.
The auxiliary lens unit 24 includes lenses 60 that are typically tinted to protect a person's eyes against the sun. The lenses 60 are supported in rims 62 that are spanned by a bridge 64. Side extension members 66 are provided to bear against the upper surface of side extension members 32 located on the primary lens unit 22.
Connector arms 68 extend :rearwardly and downwardly from the rims 62 of the auxiliary lens unit 24 below the bridge 64. Magnets 70 are disposed at the terminal end of connector arms 68 facing inwardly toward a person's nose for engaging magnets 52 on the primary lens unit 22. The magnets 52 and 70 are so positioned as to maintain attractive contact with each other when the auxiliary lens unit 24 is fitted to the primary lens unit 22 to secure the units 22, 24 together. Further support for the auxiliary lens unit 24 may be provided by the side extension members 66 bearing on top of the side extension members 32 of the primary lens unit.
Referring to Figs. 7 to 9, a second embodiment of the eyeglass device 20 is shown. For convenience, the same reference numerals have been given to structural elements corresponding to the elements of the first embodiment described above.
In the second embodiment of the eyeglass device 20, the connector arms 70 are positioned higher on the auxiliary lens unit 24 such that the arms extend over the bridge 3CI of the primary lens unit 22 and bear against the upper surface of the bridge 30 while the magnets 72 engage the magnets 52 to secure the primary and auxiliary lens units 22, 24 together. In this embodiment, the auxiliary lens unit 24 does not include ' ~ CA 02281225 1999-08-31 side extension members 66.
It is to be understood that what has been described are preferred embodiments to the invention. The invention nonetheless is susceptible to certain changes and alternative embodiments fully comprehended by the spirit of the invention as described above, and the scope of the claims set out below. For instance, magnets 52 and 70 may be replaced with mechanical attachment devices such as corresponding resilient tabs and recesses on the respective nose pad supports 44 and connection arms 68. The mechanical attachment devices would permit a "snap fit" attachment that may be detached by applying a sufficient upward force upon the auxiliary lens unit 24.
Magnet 52 is oriented to face generally outwardly relative to a person's nose (i.e. the direction opposite to the nose pad 42) in order to receive a corresponding magnet located on the auxiliary lens unit 24 as discussed below.
The auxiliary lens unit 24 includes lenses 60 that are typically tinted to protect a person's eyes against the sun. The lenses 60 are supported in rims 62 that are spanned by a bridge 64. Side extension members 66 are provided to bear against the upper surface of side extension members 32 located on the primary lens unit 22.
Connector arms 68 extend :rearwardly and downwardly from the rims 62 of the auxiliary lens unit 24 below the bridge 64. Magnets 70 are disposed at the terminal end of connector arms 68 facing inwardly toward a person's nose for engaging magnets 52 on the primary lens unit 22. The magnets 52 and 70 are so positioned as to maintain attractive contact with each other when the auxiliary lens unit 24 is fitted to the primary lens unit 22 to secure the units 22, 24 together. Further support for the auxiliary lens unit 24 may be provided by the side extension members 66 bearing on top of the side extension members 32 of the primary lens unit.
Referring to Figs. 7 to 9, a second embodiment of the eyeglass device 20 is shown. For convenience, the same reference numerals have been given to structural elements corresponding to the elements of the first embodiment described above.
In the second embodiment of the eyeglass device 20, the connector arms 70 are positioned higher on the auxiliary lens unit 24 such that the arms extend over the bridge 3CI of the primary lens unit 22 and bear against the upper surface of the bridge 30 while the magnets 72 engage the magnets 52 to secure the primary and auxiliary lens units 22, 24 together. In this embodiment, the auxiliary lens unit 24 does not include ' ~ CA 02281225 1999-08-31 side extension members 66.
It is to be understood that what has been described are preferred embodiments to the invention. The invention nonetheless is susceptible to certain changes and alternative embodiments fully comprehended by the spirit of the invention as described above, and the scope of the claims set out below. For instance, magnets 52 and 70 may be replaced with mechanical attachment devices such as corresponding resilient tabs and recesses on the respective nose pad supports 44 and connection arms 68. The mechanical attachment devices would permit a "snap fit" attachment that may be detached by applying a sufficient upward force upon the auxiliary lens unit 24.
Claims (5)
1. An eyeglass device comprising:
a primary lens unit for supporting at least one lens, said primary lens unit having a pair of nose pad supports for supporting nose pads;
an auxiliary lens unit for supporting at least one lens, said auxiliary lens unit having a pair of connector arms for engaging said pair of nose pad supports; and at least one attachment device disposed in at least one of said pair of said nose pad supports and said pair of said connector arms to detachably secure said auxiliary lens unit on said primary lens unit.
a primary lens unit for supporting at least one lens, said primary lens unit having a pair of nose pad supports for supporting nose pads;
an auxiliary lens unit for supporting at least one lens, said auxiliary lens unit having a pair of connector arms for engaging said pair of nose pad supports; and at least one attachment device disposed in at least one of said pair of said nose pad supports and said pair of said connector arms to detachably secure said auxiliary lens unit on said primary lens unit.
2. An eyeglass device as claimed in claim 1 wherein said attachment device comprises at least one magnet.
3. An eyeglass device as claimed in claim 1, further comprising side extension members disposed on said auxiliary lens unit for bearing upon corresponding side extension members disposed on said primary lens units.
4. An eyeglass device as claimed in claim 2, wherein said at least one magnet comprises first magnets disposed in said nose pad supports of said primary lens unit and second magnets disposed in said connector arms of said auxiliary lens unit, said first and second magnets attractively contacting each other when said auxiliary lens unit is attached to said primary lens unit.
5. An eyeglass device as claimed in claim 1, wherein said connector arms are configured to extend over and to be supported upon said bridge of said primary lens unit when said primary and auxiliary lens units are secured together.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2281225 CA2281225A1 (en) | 1999-08-31 | 1999-08-31 | Auxiliary lens units for eyeglasses |
| CA 2299573 CA2299573A1 (en) | 1999-08-31 | 2000-02-24 | Auxiliary lens units for eyeglasses |
| CA 2306584 CA2306584A1 (en) | 1999-08-31 | 2000-04-25 | Auxiliary lens units for eyeglasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2281225 CA2281225A1 (en) | 1999-08-31 | 1999-08-31 | Auxiliary lens units for eyeglasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2281225A1 true CA2281225A1 (en) | 2001-02-28 |
Family
ID=4164051
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2281225 Abandoned CA2281225A1 (en) | 1999-08-31 | 1999-08-31 | Auxiliary lens units for eyeglasses |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2281225A1 (en) |
-
1999
- 1999-08-31 CA CA 2281225 patent/CA2281225A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |