Abstract
An optical lens device includes an optical substrate layer, an optical thin film, an optical polarization layer and a miniature surface structure. The optical substrate layer has a first surface and a second surface and rays of light passes through the optical substrate layer. The optical polarization layer is provided on a surface of the optical thin film. The miniature surface structure is physically processed to form the optical polarization layer and provides a characteristic of optical polarization in the optical polarization layer. The miniature surface structure of the optical thin film provides an optical polarization effect to the rays of light while passing through it.
Claims
1. An optical lens device comprising: an optical substrate having a first surface and a second surface, with rays or a beam of light capable of penetrating through the first and second surfaces of the optical substrate; at least one optical thin film provided on the first surface or the second surface of the optical substrate; at least one optical polarization layer provided on a predetermined surface of the optical thin film, with the ray or the beam of light capable of penetrating through the optical polarization layer; and at least one miniature surface structure formed on the optical polarization layer to form a miniature-structure polarization grating which provides an optical polarization characteristic; wherein a polarization effect of the ray or the beam of light is generated while penetrating through the miniature-structured polarization grating.
2. The optical lens device as defined in claim 1, wherein the optical thin film is selected from a single-layer optical thin film or a multiple-complex-layer optical substrate.
3. The optical lens device as defined in claim 1, wherein the miniature surface structure is selected from a sawtooth-shaped miniature structure, a wavy-shaped miniature structure, a groove-shaped miniature structure, a concave-shaped miniature structure, a prism-shaped miniature structure, a convex-shaped miniature structure and combinations thereof.
4. The optical lens device as defined in claim 1, wherein the miniature surface structure is formed from a predetermined pattern.
5. The optical lens device as defined in claim 4, wherein the predetermined pattern is selected from a plurality of concentric rings, a plurality of railings, a plurality of letters and combinations thereof.
6. The optical lens device as defined in claim 1, wherein the optical substrate and the optical thin film are combined and treated to form as a single-layer optical substrate.
7. The optical lens device as defined in claim 1, wherein the miniature surface structure is selected from a regular-distributed miniature surface structure or an irregular-distributed miniature surface structure which is protruded from or recessed in the predetermined surface of the optical thin film.
8. The optical lens device as defined in claim 1, wherein the optical thin film is formed as a protective layer to protect the first surface or the second surface of the optical substrate.
9. The optical lens device as defined in claim 1, wherein the miniature surface structure penetrates through the optical thin film to form a plurality of through-hole structures.
10. The optical lens device as defined in claim 1, wherein another optical polarization layer of a separate optical thin film further provided on the second surface of the optical substrate to form a double-sided optical polarization substrate.
11. A method for an optical lens device comprising: providing a first surface and a second surface on an optical substrate through which rays or a beam of light to penetrate; providing at least one optical thin film on the first surface or the second surface of the optical substrate; providing at least one optical polarization layer on a predetermined surface of the optical substrate, with the ray or the beam of light capable of penetrating through the optical polarization layer; utilizing a tool to physically form at least one miniature surface structure on the optical polarization layer to form a miniature-structure polarization grating which provides an optical polarization characteristic; and generating a polarization effect of the ray or the beam of light while penetrating through the miniature-structured polarization grating of the optical thin film.
12. The method for the optical lens device as defined in claim 11, wherein the optical thin film is selected from a single-layer optical thin film or a multiple-complex-layer optical thin film.
13. The method for the optical lens device as defined in claim 11, wherein the miniature surface structure is selected from a sawtooth-shaped miniature structure, a wavy-shaped miniature structure, a groove-shaped miniature structure, a concave-shaped miniature structure, a prism-shaped miniature structure, a convex-shaped miniature structure and combinations thereof.
14. The method for the optical lens device as defined in claim 11, wherein the miniature surface structure is formed from a predetermined pattern.
15. The method for the optical lens device as defined in claim 14, wherein the predetermined pattern is selected from a plurality of concentric rings, a plurality of railings, a plurality of letters and combinations thereof.
16. The method for the optical lens device as defined in claim 11, wherein the optical substrate and the optical thin film are combined and treated to form as a single-layer optical substrate.
17. The method for the optical lens device as defined in claim 11, wherein the miniature surface structure is selected from a regular-distributed miniature surface structure or an irregular-distributed miniature surface structure which is protruded from or recessed in the predetermined surface of the optical thin film.
18. The method for the optical lens device as defined in claim 11, wherein the optical thin film is formed as a protective layer to protect the first surface or the second surface of the optical substrate.
19. The method for the optical lens device as defined in claim 11, wherein the miniature surface structure penetrates through the optical thin film to form a plurality of through-hole structures.
20. The method for the optical lens device as defined in claim 11, wherein another optical polarization layer of a separate optical thin film further provided on the second surface of the optical substrate to form a double-sided optical polarization substrate.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0052] The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:
[0053] FIG. 1 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a first preferred embodiment of the present invention.
[0054] FIG. 2 is a flow chart of a method of an optical lens device having a polarization miniature structure in accordance with a preferred embodiment of the present invention.
[0055] FIG. 3 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a second preferred embodiment of the present invention.
[0056] FIG. 4 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a third preferred embodiment of the present invention.
[0057] FIG. 5 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a fourth preferred embodiment of the present invention.
[0058] FIG. 6 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a fifth preferred embodiment of the present invention.
[0059] FIG. 7 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a sixth preferred embodiment of the present invention.
[0060] FIG. 8 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a seventh preferred embodiment of the present invention.
[0061] FIG. 9A is a schematic side view of an optical lens device having a polarization miniature structure with a first pattern of miniature surface structure in accordance with a preferred embodiment of the present invention.
[0062] FIG. 9B is a schematic side view of an optical lens device having a polarization miniature structure with a second pattern of miniature surface structure in accordance with a preferred embodiment of the present invention.
[0063] FIG. 9C is a schematic side view of an optical lens device having a polarization miniature structure with a third pattern of miniature surface structure in accordance with a preferred embodiment of the present invention.
[0064] FIG. 9D is a schematic side view of an optical lens device having a polarization miniature structure with a fourth pattern of miniature surface structure in accordance with a preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0065] It is noted that an optical lens device having a polarization miniature structure and operation or manufacturing method thereof in accordance with the preferred embodiment of the present invention can be applicable to various glasses (including rimless glasses), various sunglasses, various smart glasses, various sport glasses (including motorcycle-riding glasses), various goggles, various 3D glasses devices, various VR wearable glasses devices, various AR wearable glasses devices or other optical devices such as sensor lens devices, camera lens devices, computer display glasses or TV screen glasses, which are not limitative of the present invention.
[0066] FIG. 1 shows a schematic side view of an optical lens device having a polarization miniature structure in accordance with a first preferred embodiment of the present invention. Referring now to FIG. 1, the optical lens device in accordance with the first preferred embodiment of the present invention includes an optical substrate 1, at least one optical thin film 2, at least one first optical polarization layer 2a, at least one first miniature structure 20a or at least one first microstructure.
[0067] With continued reference to FIG. 1, by way of example, the optical substrate 1 is selected from a single-layer optical substrate or a multiple-complex-layer optical substrate, with the optical substrate 1 having a uniform thickness selectively made of a glass material, a plastic material, an eco-friendly plastic material, a macromolecule material, a PC (polycarbonate) material, a PMMA (poly(methyl methacrylate)) material, a nylon material or similar materials.
[0068] Still referring to FIG. 1, by way of example, the optical substrate 1 is selected from an optical polarization layer, an anti-reflection layer, a photochromic material, anti-blue layer, anti-blue UV layer, an anti-infrared layer or other functional layer (e.g., anti-fog layer or scratch resistant layer) or combinations thereof.
[0069] Still referring to FIG. 1, by way of example, the optical thin film 2 is selected from a single-layer optical thin film or a multiple-complex-layer optical thin film which is made of materials similar or dissimilar to those of the optical substrate 1 (e.g., composition or refractive index) and the optical thin film 2 is formed as a protective layer or an equivalent layer having a protective function to protect a surface of the optical substrate 1 from damages in a mechanical or laser processing procedure or in normal use.
[0070] Still referring to FIG. 1, by way of example, the optical thin film 2 is selectively coated with an optical reflective layer, an anti-reflection layer, a splitter layer, a filtering layer or a metal thin layer, with metals selected from aluminum (Al), gold (Au), silver (Ag), nickel (Ni), chromium (Cr), alloys thereof or combinations thereof.
[0071] Still referring to FIG. 1, by way of example, the optical thin film 2 is further selectively coated with another metal oxide material to form an anti-reflection (AR) layer or a high transmittance AR coating layer, with metal oxide materials selected from hafnium oxide (HfO.sub.2), aluminum oxide (Al.sub.2O.sub.3), tantalum pentoxide (Ta.sub.2O.sub.5), silicon dioxide (SiO.sub.2), titanium oxide (TiO.sub.2), zirconium dioxide (ZrO.sub.2), magnesium fluoride (MgF.sub.2), alloys thereof or combinations thereof.
[0072] Still referring to FIG. 1, by way of example, the first optical polarization layer 2a and the first miniature structure 20a of the optical thin film 2 have a miniature specification (e.g., miniature width, miniature depth, miniature height or other sizes) to form a miniature grating structure, thereby the first miniature structure 20a providing a function of optical polarization in the first optical polarization layer 2a.
[0073] FIG. 2 is a flow chart of a method of an optical lens device having a polarization miniature structure in accordance with a preferred embodiment of the present invention. Turning now to FIGS. 1 and 2, by way of example, the method of an optical lens device having a polarization miniature structure includes the step S1: providing a first surface (i.e., front-side surface) 11 and a second surface (i.e., rear-side surface) 12 on the first optical substrate 1 through which rays or a beam of light can be penetrated.
[0074] Still referring to FIGS. 1 and 2, by way of example, the method of an optical lens device having a polarization miniature structure includes the step S2: selectively providing at least one optical thin film 2 on the first surface (i.e., front-side surface) 11 or the second surface (i.e., rear-side surface) 12 of the optical substrate 1.
[0075] Still referring to FIGS. 1 and 2, by way of example, the method of an optical lens device having a polarization miniature structure includes the step S3: providing one or more of the first optical polarization layers 2a on a front-side surface or a rear-side surface of the optical thin film 2 in an integrated manner with similar or different refractive indexes or colors from those of the optical substrate 1, with the ray or the beam of light capable of penetrating through the first optical polarization layer 2a. The first optical polarization layer 2a is integrated into the optical substrate 1 (e.g., between front and rear surfaces) which is selected from a single-layer optical substrate or a multiple-complex-layer optical substrate.
[0076] With continued reference to FIGS. 1 and 2, by way of example, in another preferred embodiment, two first optical polarization layers 2a of two separate optical thin films 2 made of similar or dissimilar materials or refractive indexes are provided on the first surface (i.e., front-side surface) 11 and the second surface (i.e., rear-side surface) 12 of the optical substrate 1 in an integrated manner to form a double-sided optical polarization substrate, with the two first optical polarization layers 2a provide optical polarization in different angular directions of light.
[0077] Still referring to FIGS. 1 and 2, by way of example, the method of an optical lens device having a polarization miniature structure includes the step S4: utilizing a tool (e.g., extrusion molding device or other devices) to physically form the first miniature structure 20a (e.g., miniature surface structure) on the first optical polarization layer 2a of the optical thin film 2 to form a miniature-structure polarization grating (or grating barrier) which provides an optical polarization characteristic and a degree of light transmittance.
[0078] Still referring to FIGS. 1 and 2, by way of example, in forming the first optical polarization layer 2a and the first miniature structure 20a of the optical thin film 2 may selectively be processed by an extrusion molding procedure, a thermal extrusion molding procedure or other physical processing manner.
[0079] Still referring to FIGS. 1 and 2, by way of example, in a preferred embodiment, an extrusion molding device 3 with an extrusion molding surface 30, as best shown in FIG. 1, is applied to form the first optical polarization layer 2a and the first miniature structure 20a on one or both surfaces of the optical thin film 2.
[0080] Still referring to FIGS. 1 and 2, by way of example, the optical substrate 1 and the first optical polarization layer 2a (first miniature structure 20a) of the optical thin film 2 made of similar or different refractive indexes or colors of materials are formed in an integrated manner (e.g., thermal treatment) to form as a single-layer substrate to reduce a total thickness and may be made of same material.
[0081] Still referring to FIGS. 1 and 2, by way of example, the method of an optical lens device having a polarization miniature structure includes the step S5: generating a polarization effect of the ray or the beam of light on the optical thin film 2 and the optical substrate 1 while penetrating through the miniature-structured polarization grating of the first optical polarization layer 2a of the optical thin film 2.
[0082] Still referring to FIGS. 1 and 2, by way of example, the first miniature structure 20a with a profile is selected from a sawtooth-shaped miniature structure or the like, with the first miniature structure 20a selected from a regular-distributed miniature surface structure or an irregular-distributed miniature surface structure, with the first miniature structure 20a protruded from the surface of the optical thin film 2, as best shown in dotted line in FIG. 1.
[0083] FIG. 3 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a second preferred embodiment of the present invention. Turning now to FIG. 3, in comparison with the first embodiment, the optical lens device in accordance with the second preferred embodiment has the first miniature structure 20a recessed in the surface (e.g., front-side surface or rear-side surface) of the optical thin film 2, as best shown in dotted line in FIG. 3, provided on the first surface 11 or the second surface 12 of the optical substrate 1.
[0084] FIG. 4 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a third preferred embodiment of the present invention. Turning now to FIG. 4, in comparison with the first embodiment, the optical lens device in accordance with the third preferred embodiment is formed with a curved optical substrate 1a which has at least one curved surface on which to provide the optical thin film 2, as best shown in dotted line in FIG. 4.
[0085] FIG. 5 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a fourth preferred embodiment of the present invention. Turning now to FIG. 5, in comparison with the first embodiment, the optical lens device in accordance with the fourth preferred embodiment includes the surface of the optical thin film 2 processed by a laser beam to form a second miniature structure 20b which forms a second optical polarization layer 2b.
[0086] Still referring to FIG. 5, by way of example, a laser machine with a laser emitter 50, as best shown in top portion in FIG. 5, is selected to process the second optical polarization layer 2b, with a laser beam or multiple laser beams emitted from the laser emitter 50 to form the second miniature structure 20b of the second optical polarization layer 2b of the optical thin film 2 provided on the optical substrate 1.
[0087] Still referring to FIG. 5, by way of example, the laser machine further includes a control unit 5 of the laser machine or other equivalent devices having a laser-control function to control the laser beam emitted from the laser emitter 50 which further includes a filter member or other elements. The laser machine can be selected from a desktop laser machining device, a multi-axis laser machining device or other laser machining devices.
[0088] Still referring to FIG. 5, by way of example, the laser beam applied in the present invention has a predetermined laser type, a predetermined wavelength and a predetermined power which can be selected according to various needs. The laser beam further has a predetermined radius or diameter or a dot shape (i.e., circle, ellipse or other suitable shapes).
[0089] Still referring to FIG. 5, by way of example, in a preferred embodiment, the optical thin film 2 is initially extruded or thermal-extruded to form a semi-processed miniature structure which is further processed to form a fully-processed miniature structure by a laser beam or other different manners so as to provide a complex miniature structure.
[0090] FIG. 6 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a fifth preferred embodiment of the present invention. Turning now to FIG. 6, in comparison with the first embodiment, the optical lens device in accordance with the fifth preferred embodiment includes the optical thin film 2 formed with a third optical polarization layer 2c and a third miniature structure 20c which has a profile of wavy to form a wavy-shaped miniature structure.
[0091] FIG. 7 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a sixth preferred embodiment of the present invention. Turning now to FIG. 7, in comparison with the first embodiment, the optical lens device in accordance with the sixth preferred embodiment includes the optical thin film 2 formed with a fourth optical polarization layer 2d and a fourth miniature structure 20d which penetrates through the optical thin film 2 to form a plurality of through-hole structures. Additionally, the fourth miniature structure 20d has a profile to form a groove-shaped miniature structure, a concave-shaped miniature structure, a prism-shaped miniature structure, a convex-shaped miniature structure and combinations thereof.
[0092] FIG. 8 is a schematic side view of an optical lens device having a polarization miniature structure in accordance with a seventh preferred embodiment of the present invention. Turning now to FIG. 8, in comparison with the first embodiment, the optical lens device in accordance with the seventh preferred embodiment includes the optical thin film 2 formed with a fifth optical polarization layer 2e and a fifth miniature structure 20e which has a profile to form a groove-shaped miniature structure. The fifth miniature structure 20d can be also selected from a concave-shaped miniature structure, a prism-shaped miniature structure, a convex-shaped miniature structure and combinations thereof.
[0093] FIG. 9A is a schematic side view of an optical lens device having a polarization miniature structure with a first pattern of miniature surface structure in accordance with a preferred embodiment of the present invention. Turning now to FIG. 9A, by way of example, the optical thin film 2 selectively has a predetermined pattern to form an optical polarization layer 2, with the predetermined pattern formed from a first miniature structure pattern 201 which is an inclined-groove pattern.
[0094] FIG. 9B is a schematic side view of an optical lens device having a polarization miniature structure with a second pattern of miniature surface structure in accordance with a preferred embodiment of the present invention. Turning now to FIG. 9B, by way of example, the optical thin film 2 selectively has a predetermined pattern to form an optical polarization layer 2, with the predetermined pattern formed from a second miniature structure pattern 202 which is a circle-array pattern.
[0095] FIG. 9C is a schematic side view of an optical lens device having a polarization miniature structure with a third pattern of miniature surface structure in accordance with a preferred embodiment of the present invention. Turning now to FIG. 9C, by way of example, the optical thin film 2 selectively has a predetermined pattern to form an optical polarization layer 2, with the predetermined pattern formed from a third miniature structure pattern 203 which is an ellipse-array pattern.
[0096] FIG. 9D is a schematic side view of an optical lens device having a polarization miniature structure with a fourth pattern of miniature surface structure in accordance with a preferred embodiment of the present invention. Turning now to FIG. 9D, by way of example, the optical thin film 2 selectively has a predetermined pattern to form an optical polarization layer 2, with the predetermined pattern formed from a fourth miniature structure pattern 204 which is a square-array pattern.
[0097] Referring back to FIGS. 9A to 9D, by way of example, in another embodiment, patterns of the optical thin film 2 is selected from a plurality of concentric rings, a plurality of railings, a plurality of letters and combinations thereof.
[0098] Although the invention has been described in detail with reference to its presently preferred embodiment, it will be understood by one of ordinary skills in the art that various modifications can be made without departing from the spirit and the scope of the invention, as set forth in the appended claims.
