Eyeglasses and means for their adjustment
Eyeglasses which comprise a pair of optical plates for each eye. Each of the optical plates is made up of a front plate and a rear plate and a return and hinge mechanism links the optical plates of each pair with one another. An adjustment mechanism facilitates relative movement of the optical plates, of each pair, in a plane substantially perpendicular to a viewing direction of the eyeglasses. The return and hinge mechanism and the adjustment mechanism are decoupled.
1. An eyeglasses comprising:
a pair of optical plates for each eye, with each optical plate comprising a front plate and a rear plate;
a return and hinge mechanism linking the optical plates of each pair; and
an adjustment mechanism for facilitating relative movement of the optical plates of each pair in a plane substantially perpendicular to a viewing direction of the eyeglasses;
wherein the return and hinge mechanism and the adjustment mechanism are decoupled.
2. The eyeglasses according to claim 1 , wherein the rear plate is laterally movable.
3. The eyeglasses according to claim 1 , wherein the return and hinge mechanism comprises cored lugs and a pin.
4. The eyeglasses according to claim 3 , wherein the return and hinge mechanism incorporates a resilient biasing means.
5. The eyeglasses according to claim 4 , wherein the resilient biasing means includes a compression spring.
6. The eyeglasses according to claim 3 , wherein the return and hinge mechanism incorporates a sliding lock mechanism.
7. The eyeglasses according to claim 3 , wherein the return and hinge mechanism incorporates a pair of plate closing cams.
8. The eyeglasses according to claim 1 , wherein the adjustment mechanism is located in the vicinity of a temple of a wearer of the eyeglasses during use thereof.
9. The eyeglasses according to claim 1 , wherein the adjustment mechanism comprises:
a temple-hugging clip;
a threaded sleeve, and
a threaded pushing member comprising a threaded shaft and an adjustment knob.
10. The eyeglasses according to claim 1 , wherein the adjustment mechanism is detachable from a remainder of the eyeglasses.
11. The eyeglasses according to claim 1 , wherein the eyeglasses further incorporate movable nose pads.
12. The eyeglasses according to claim 11 , wherein the nose pads are rotatably mounted.
13. An adjustment mechanism for use with eyeglasses, the eyeglasses comprising:
a pair of optical plates for each eye,
the adjustment mechanism for facilitating relative movement of the optical plates of each pair in a plane substantially perpendicular to a viewing direction, and the adjustment mechanism comprising:
a temple-hugging clip;
a threaded sleeve; and
a threaded pushing member comprising a threaded shaft and an adjustment knob.
14. The adjustment mechanism for use with eyeglasses according to claim 13 , wherein the eyeglasses further comprises a return and hinge mechanism linking the optical plates of each pair.