GLASSES WITH PRISMATIC LENSES

• US 20160349533A1
• Filed: 01/26/2015
• Published: 12/01/2016
• Est. Priority Date: 01/28/2014
• Status: Active Grant

• Current Assignee: Family Vision Center - Vte S.r.l.
• Original Assignee: Family Vision Center - Vte S.r.l.
• Inventors: GRASSI, Marco
• Granted Patent: US 10,126,565 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G02C 1/08 the rims being tranversely split and provided with securing means
• CPC Class Codes: G02C 2200/16 Frame or frame portions made from rubber
• CPC Class Codes: G02C 2202/06 Special ophthalmologic or optometric aspects
• CPC Class Codes: G02C 2202/10 Optical elements and systems for visual disorders other than refractive errors, low vision
• CPC Class Codes: G02C 3/006 Arrangements for fitting and securing to the head or neck not in the position of use
• CPC Class Codes: G02C 5/001 specially adapted for particular purposes, not otherwise provided for or not fully classifiable according to technical characteristics, e.g. therapeutic glasses
• CPC Class Codes: G02C 5/008 Spectacles frames characterized by their material, material structure and material properties
• CPC Class Codes: G02C 5/04 with adjustable means
• CPC Class Codes: G02C 7/14 Mirrors; Prisms

Abstract

An eyeglass including a first prismatic lens (2), a second prismatic lens (3) and a frame (4) configured to house the first and the second prismatic lenses (2; 3). The first and the second prismatic lenses (2; 3) are low base yoked prisms having a dioptric power, measured in prism diopters, the same for the two lenses and less than 0.25. The first and the second prismatic lenses (2; 3) are oriented in the same direction.

Claims

1-10. -10. (canceled)

11. An eyeglass comprising:

a first prismatic lens and a second prismatic lens, and

a frame configured to support the first and second prismatic lenses,

wherein the first and second prismatic lenses being yoked prisms having a dioptric power, measured in prism diopters, that is equal for the first and second prismatic lenses and less than 0.25.

12. The eyeglass according to claim 11, wherein the frame is configurable between at least one locked configuration at which the first and second prismatic lenses are fixed with respect to the frame, and an adjustment configuration at which the first and second prismatic lenses are movable with respect to the frame.

13. The eyeglass according to claim 12 further comprising:

an adjustment mechanism associated with the frame and having at least two stability positions, wherein the adjustment mechanism being operable between at least a first holding position in which the first and the second prismatic lenses are held in a fixed position with respect to the frame in a locked configuration, and a second release position, defining an adjustment configuration of the frame, in which at least one portion of the frame is loosened and the first and second prismatic lenses are movable with respect to the frame and/or wherein a regulating mechanism develops at an adjustment portion of the eyeglasses interposed between the first and second prismatic lenses.

14. The eyeglass according to claim 11, wherein at least one portion of the frame is elastically deformable and/or wherein the elastic deformation of the at least one portion of the frame is controlled by an adjustment mechanism.

15. The eyeglass according to claim 13, wherein in the adjustment configuration, the first and second prismatic lenses are selectively rotatable between at least a first angular position and a second angular position, wherein the rotation being defined in a plane coinciding with a primary development plane of the prismatic lenses and/or with a resting plane of at least one between a front surface and a rear surface of the first and second prismatic lenses and/or substantially perpendicular to the thickness.

16. The eyeglass according to claim 11, wherein the first and second prismatic lenses, respectively, have a first reference indicator and a second reference indicator configured to indicate an angular position thereof and/or wherein the frame has identification indicator configured to indicate the angular position of the first and second prismatic lenses.

17. The eyeglass according to claim 16, wherein the identification indicator of the angular position of the first and second prismatic lenses, respectively, comprises a first and a second graduated portion and/or wherein the first and second graduated portions are defined at a lower portion of the frame and define an angular interval less than or equal to sixty degrees and/or wherein the first and the second reference indicators respectively have the same angular position with respect to the first and second graduated portions.

18. The eyeglass according to claim 11, wherein the frame includes a lower portion and an upper portion, and

wherein the first and second prismatic lenses have a variable thickness, wherein the variable thickness varies between a first thickness defined at a first portion of the prismatic lenses located at the lower portion of the frame and a second thickness defined at a second portion of the prismatic lenses located at the upper portion of the frame,

wherein the first thickness is greater than the second thickness.

19. The eyeglass according to claim 11, wherein the first and second prismatic lenses have a dioptric power, measured in prism diopters, equal for the lenses and between 0.05 and 0.24.

20. An eyeglass comprising:

a frame including left and right rims configured to hold prismatic lenses and a bridge joining the left and right rims, and

a left prismatic lens held by the left rim, wherein an outer perimeter of the left prismatic lens seats against a surface of the left rim, and

a right prismatic lens held by the right rim, wherein an outer perimeter of the right prismatic lens seats against a surface of the right rim, and

wherein the first and second prismatic lenses are each a yoked prism and the first and second prismatic lenses have equal dioptric powers, measured in prism diopters, and the equal dioptric power is no greater than 0.25.

21. The eyeglass according to claim 20 further comprising an adjustment mechanism mounted on the bridge, wherein the adjustment mechanism is configured to deform the left and right rims between a locked position of the rims and an unlocked position of the rims, and wherein the first and second prismatic lenses are secured against movement with respect to the left and right rims in the locked position, and the first and second prismatic lenses are moveable with respect to the left and right rims in the unlocked position.

22. The eyeglass according to claim 21 wherein the adjustment mechanism includes a regulating mechanism, an upper bridge portion and a lower bridge portion, wherein the regulating mechanism displaces the upper bridge portion from the lower bridge portion to form the unlocked position and the regulating mechanism biases the upper bridge portion towards the lower bridge portion to form the locked position.