NZ768233B2 - Lens and eyewear - Google Patents
Lens and eyewear Download PDFInfo
- Publication number
- NZ768233B2 NZ768233B2 NZ768233A NZ76823319A NZ768233B2 NZ 768233 B2 NZ768233 B2 NZ 768233B2 NZ 768233 A NZ768233 A NZ 768233A NZ 76823319 A NZ76823319 A NZ 76823319A NZ 768233 B2 NZ768233 B2 NZ 768233B2
- Authority
- NZ
- New Zealand
- Prior art keywords
- lens
- discontinuity
- eyewear
- frame
- reflective
- Prior art date
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0264—Pressure sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2201/00—Specific applications of microelectromechanical systems
- B81B2201/02—Sensors
- B81B2201/0271—Resonators; ultrasonic resonators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2203/00—Basic microelectromechanical structures
- B81B2203/01—Suspended structures, i.e. structures allowing a movement
- B81B2203/0127—Diaphragms, i.e. structures separating two media that can control the passage from one medium to another; Membranes, i.e. diaphragms with filtering function
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B2203/00—Basic microelectromechanical structures
- B81B2203/04—Electrodes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81B—MICROSTRUCTURAL DEVICES OR SYSTEMS, e.g. MICROMECHANICAL DEVICES
- B81B7/00—Microstructural systems ; Auxiliary parts of microstructural devices or systems
- B81B7/0032—Packages or encapsulation
- B81B7/0045—Packages or encapsulation for reducing stress inside of the package structure
- B81B7/0048—Packages or encapsulation for reducing stress inside of the package structure between the MEMS die and the substrate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C1/00—Manufacture or treatment of devices or systems in or on a substrate
- B81C1/00015—Manufacture or treatment of devices or systems in or on a substrate for manufacturing microsystems
- B81C1/00261—Processes for packaging MEMS devices
- B81C1/00325—Processes for packaging MEMS devices for reducing stress inside of the package structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B81—MICROSTRUCTURAL TECHNOLOGY
- B81C—PROCESSES OR APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OR TREATMENT OF MICROSTRUCTURAL DEVICES OR SYSTEMS
- B81C2201/00—Manufacture or treatment of microstructural devices or systems
- B81C2201/01—Manufacture or treatment of microstructural devices or systems in or on a substrate
- B81C2201/0101—Shaping material; Structuring the bulk substrate or layers on the substrate; Film patterning
- B81C2201/0128—Processes for removing material
- B81C2201/013—Etching
- B81C2201/0132—Dry etching, i.e. plasma etching, barrel etching, reactive ion etching [RIE], sputter etching or ion milling
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
- G01L9/0072—Transmitting or indicating the displacement of flexible diaphragms using variations in capacitance
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C5/00—Constructions of non-optical parts
- G02C5/02—Bridges; Browbars; Intermediate bars
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- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/14—Mirrors; Prisms
Abstract
lens 24 for eyewear, where the curvature of the lens 24 has a discontinuity 30, the discontinuity 30 defining a first portion 26 of the lens 24 on one side of the discontinuity 30, and a second portion 28 of the lens 24 on another side of the discontinuity 30. The second portion 28 is angled relative to the first portion 26. The first portion 26 is transparent or translucent and the second portion 28 has a reflective side, and the angle between the surface on the reflective side of the second portion 28 and an adjacent surface of the first 26 portion is obtuse. The reflective side of the second portion 28 comprises a partially reflective coating. An eyewear utilizing the lens is also claimed. The eyewear achieves both forward and rearward vision through a combination of lens curvature, discontinuity, reflective coating, and frame positioning.
Claims (20)
1. A lens for eyewear, wherein the curvature of the lens has a discontinuity, the discontinuity defining a first portion of the lens on one side of the discontinuity, and a 5 second portion of the lens on another side of the discontinuity, the second portion thereby being angled relative to the first portion; wherein the first portion is transparent or translucent and the second portion has a reflective side being at least partially reflective; and wherein the angle between the surface on the reflective side of the second 10 portion and an adjacent surface of the first portion is obtuse; characterized in that the reflective side of the second portion comprises a reflective coating and the reflective coating is partially reflective.
2. A lens according to claim 1, wherein the angle is between 160° and 179.5°, optionally about 165°.
3. A lens according to claim 1 or claim 2, wherein the discontinuity is substantially linear. 15
4. A lens according to claim 1 or claim 2, wherein the discontinuity is non-linear.
5. A lens according to any one of the preceding claims, wherein the discontinuity extends across the whole height of the lens.
6. A lens according to any one of the preceding claims, wherein the surface area of the second portion is between about 10-35% of the surface area of the lens.
7. A lens according to claim 1, wherein the reflective coating covers the whole of the reflective side of the second portion.
8. A lens according to claim 1, wherein the reflective coating partially covers the reflective side of the second portion.
9. A lens according to claim 8, wherein the remaining portion of the second portion that is not covered by the reflective coating is transparent or translucent. 5
10. A lens according to any one of the preceding claims, wherein the lens comprises a filter for blocking particular wavelengths of light.
11. A lens according to any one of the preceding claims, wherein the first portion and the second portion are substantially flat and planar and the plane of the first portion intersects the plane of the second portion at the discontinuity. 1O
12. A lens according to any one of the preceding claims, wherein the shape of the lens is generally circular, oval, square, rectangular or teardrop.
13. Eyewear comprising: at least one lens according to any one of claims 1 to 12; and a frame configured to support the or each lens such that the first portion is 15 located toward a central region of the frame, the second portion is located toward a peripheral region of the frame, and the second portion is angled toward the wearer relative to the first portion when in use, such that the reflective side of the second portion faces the wearer in use.
14. Eyewear according to claim 13, wherein the discontinuity is orientated 20 substantially vertically with respect to the wearer when in use.
15. Eyewear according to claim 13 or 14, wherein the, or each, lens is releasably supported by the frame.
16. Eyewear according to any one of claims 13 to 15, comprising two lenses according to any one of claims 1 to 12 arranged symmetrically about the central region of the frame.
17. Eyewear according to claim 1, further comprising a nose-bridge member 5 arranged in the central region of the frame, wherein each lens is arranged on opposing sides of the nose-bridge member.
18. Eyewear according to claim 17, wherein the nose-bridge member is releasably attachable to the frame.
19. Eyewear according to any one of claims 13 to 18, further comprising securing 10 means for securing the frame to a wearer's head in use.
20. Eyewear according to claim 19, wherein the securing means comprise a pair of arms hingedly mounted to the frame for extending over the ears of the wearer when in use.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB1804838.9A GB201804838D0 (en) | 2018-03-26 | 2018-03-26 | Lens and eyewear |
| PCT/GB2019/050721 WO2019186107A1 (en) | 2018-03-26 | 2019-03-14 | Lens and eyewear |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NZ768233A NZ768233A (en) | 2024-10-25 |
| NZ768233B2 true NZ768233B2 (en) | 2025-01-28 |
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