CN115214162A - Method and system for attaching non-planar optical film - Google Patents
Method and system for attaching non-planar optical film Download PDFInfo
- Publication number
- CN115214162A CN115214162A CN202210830612.8A CN202210830612A CN115214162A CN 115214162 A CN115214162 A CN 115214162A CN 202210830612 A CN202210830612 A CN 202210830612A CN 115214162 A CN115214162 A CN 115214162A
- Authority
- CN
- China
- Prior art keywords
- optical film
- planar optical
- planar
- attaching
- area
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
- B29L2011/0016—Lenses
Abstract
The invention provides a method and a system for attaching a non-planar optical film. The attaching method includes: preforming, aligning and attaching. In the preforming step, a heat conducting plate with a convex part is heated by a heat source in a non-contact way, and then the plane optical film is hot-pressed, so that a first area of the plane optical film becomes a non-plane area which is formed by copying on a non-plane lens after contacting the convex part, wherein the edge area except the first area of the plane optical film is shielded by a mask and is not heated by the heat source. In the alignment step, the first area of the planar optical film is aligned with the non-planar mirror by an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique. In addition, in the attaching step, the first area of the aligned planar optical film is attached to the non-planar lens.
Description
Technical Field
The present invention relates to a method and a system for bonding optical films, and more particularly to a method and a system for bonding non-planar optical films.
Background
An Augmented Reality (AR) device integrates real world and virtual world information, and physical information which is difficult to experience in a certain time space range of the real world originally is simulated by a computer and the like and then is superimposed, so that the virtual information is applied to the real world and is experienced by human senses through the AR device, and the sensory experience beyond reality is achieved.
No matter the Virtual Reality (VR) or Augmented Reality (AR) device, the user's visual experience needs to be enhanced through a special lens, so the structure and process of the lens are more complicated than the past, when the lens is attached to the polarizer, the size of the polarizer needs to be larger than that of the lens due to the influence of the optical axis and the machine, and then the shape is cut by laser. However, due to laser destructive and thermal influence, the lens and polarizer edges have jagged structures.
Therefore, how to provide a method for bonding a non-planar optical film that can solve the above problems is an important issue to be considered in the industry.
Disclosure of Invention
The invention provides a method for attaching a non-planar optical film. The attaching method of the non-planar optical film comprises the following steps: preforming, aligning and attaching. In the preforming step, a heat conducting plate with a convex part is heated in a non-contact way by a heat source, and then the plane optical film is hot-pressed, so that a first area of the plane optical film becomes a non-plane area which is imitated to the non-plane lens after contacting the convex part, wherein the edge area outside the first area of the plane optical film is shielded by a mask and is not heated by the heat source. In the alignment step, the first area of the planar optical film is aligned with the non-planar mirror by an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique. In addition, in the attaching step, the first area of the aligned planar optical film is attached to the non-planar lens.
According to one or more embodiments of the invention, the convex portion is contoured to the non-planar lens.
According to one or more embodiments of the present invention, wherein the edge region of the planar optical film corresponds to a region other than the convex portion of the heat conductive plate, and the mask has an opening corresponding to the first region and the convex portion, so that the heat source heats the first region and the convex portion through the opening in the preforming step without contact.
According to one or more embodiments of the invention, wherein the heat source is an infrared heater.
According to one or more embodiments of the present invention, the method further comprises: and a cutting step of cutting the edge area of the planar optical film in a non-contact cutting manner after the attaching step, wherein the non-contact cutting manner utilizes a laser knife to perform cutting.
According to one or more embodiments of the present invention, the method further comprises: and a cutting step of cutting the edge area of the planar optical film in a contact cutting manner after the attaching step, wherein the contact cutting manner is cutting by means of stamping (Punch).
According to one or more embodiments of the present invention, the method for attaching the non-planar optical film is used in a 3D attaching process, and the attaching tolerance is less than 200 μm.
According to one or more embodiments of the present invention, the non-planar lens has an aspheric surface, and the radius of curvature of the aspheric surface is less than 100.
The invention provides a laminating system of a non-planar optical film. The conformable system of the non-planar optical film comprises: preforming device, aligning device and laminating device. The preforming device comprises a heat source, a mask, a carrier and a heat conducting plate with a convex part, wherein the mask, the carrier and the heat conducting plate are sequentially arranged from near to far away from the heat source, the mask and the edge area of a planar optical film carried by the carrier are correspondingly arranged, and after the convex part of the heat conducting plate is heated and thermally pressed in a non-contact manner by the heat source, the first area of the planar optical film becomes a non-planar area which is profiled on a non-planar lens after contacting the convex part, but the edge area except the first area of the planar optical film is not heated by the heat source due to shielding of the mask. The alignment Device uses an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique to align the first area of the planar optical film with the non-planar mirror. The attaching device is used for attaching the aligned first area of the planar optical film and the non-planar lens.
According to one or more embodiments of the present invention, the edge region of the planar optical film corresponds to a region other than the convex portion of the heat conductive plate, and the mask has an opening corresponding to the first region and the convex portion, and a fitting tolerance is less than 200 μm.
Drawings
In order to make the aforementioned and other objects, features, advantages and embodiments of the invention more comprehensible, the following description is given:
fig. 1 is a flowchart illustrating a method for attaching a non-planar optical film according to an embodiment of the present invention.
FIG. 2 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure.
FIG. 3 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure.
FIG. 4 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure.
FIG. 5 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure.
In accordance with conventional practice, the various features and elements of the drawings are not necessarily to scale, emphasis instead being placed upon illustrating the particular features and elements of the invention in order to best explain the principles of the invention. Moreover, the same or similar reference numbers will be used throughout the drawings to refer to similar components and parts.
Reference numerals: 202 heat conducting plate
204. Planar optical film
204a first area
204b edge region
206. Carrier tool
208. Shade cover
210. Heat source
300. Region(s)
302. Laser generating unit
304. Laser light
402. Upper cover
404. Base seat
406. Fixing part
408. Non-planar lens
410. Alignment hole
500. Region(s)
L1, L2, L3 infrared ray
S101 to S103
Detailed Description
For the purpose of promoting an understanding of the principles of the invention, its structure, features and advantages, reference should be made to the drawings and to the accompanying drawings.
The following disclosure provides various embodiments, or examples, for implementing various features of the provided subject matter. Specific examples of components and arrangements are described below to simplify the present disclosure and are not intended to be limiting; the size and shape of the elements are also not limited by the disclosed ranges or values, but may depend on the processing conditions of the elements or the desired characteristics. For example, the technical features of the present invention are described using cross-sectional views, which are schematic illustrations of idealized embodiments. Thus, variations in the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, are to be expected and should not be construed as limiting.
Furthermore, spatially relative terms, such as "below," "below …," "below," "above …," and "above," are used for ease of describing the relationship between elements or features depicted in the drawings; spatially relative terms may encompass different orientations of the component in use or operation in addition to the orientation depicted in the figures.
First, referring to fig. 1 to 4 together, fig. 1 is a flowchart of a method for attaching a non-planar optical film according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure. FIG. 3 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure. FIG. 4 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure.
As shown in fig. 1, in an embodiment of the present invention, a method for attaching a non-planar optical film includes: a preforming step S101, a positioning step S102, and a bonding step S103.
As shown in fig. 2 to 4, a system for attaching a non-planar optical film according to an embodiment of the present invention includes: a preforming device (as shown in fig. 2), an alignment device (as shown in fig. 3), and a laminating device (as shown in fig. 4).
As shown in fig. 2 and 4, the preforming device according to the embodiment of the invention includes a heat source 210, a mask 208, a carrier 206, and a heat conducting plate 202 having protrusions. In the embodiment of the present invention, the mask 208, the carrier 206 and the heat conducting plate 202 are sequentially disposed from the heat source 210, and the mask 208 is disposed corresponding to the edge region 204b (see fig. 4) of the planar optical film 204 carried by the carrier 206. It should be noted that, in the embodiment of the present invention, the edge area 204b of the planar optical film 204 corresponds to the area outside the convex portion of the heat-conducting plate 202; in addition, the mask 208 has openings corresponding to the first region 204a (see fig. 4) of the planar optical film 204 and the protrusions of the heat conducting plate 202, so that the radiant heat provided by the heat source 210 can pass through the openings to heat the protrusions of the heat conducting plate 202. Therefore, when the convex portion of the heat conducting plate 202 is heated and thermally pressed by the heat source 210 in a non-contact manner, the first area 204a of the planar optical film 204 becomes a non-planar area 204a following the non-planar lens 408 (see fig. 4) after contacting the convex portion, but the edge area 204b of the planar optical film 204 except the first area 204a is not heated by the heat source 210 because of being shielded by the mask 208.
With respect to the mask 208 in an embodiment of the present invention, further reference may be made to FIG. 5. FIG. 5 is a schematic diagram of a portion of an apparatus in a system for attaching a non-planar optical film according to an embodiment of the present disclosure. As shown in FIG. 5, the heat source 210 according to an embodiment of the present invention is an infrared heater, and the emitted infrared rays L1, L2, L3 pass through the opening of the mask 208, penetrate the first region 204a of the planar optical film 204 to reach the surface of the convex portion of the heat conducting plate 202, and heat the first region 204a of the planar optical film 204 and the convex portion of the heat plate 202 for a predetermined time. As can be seen from fig. 5, the path of the infrared rays L1, L2, L3 is restricted due to the design of the opening of the mask 208, and the infrared heater as the heat source 210 heats only the first region 204a of the planar optical film 204 and the convex portion of the thermal heat conduction plate 202. In particular, the heating range of the convex portion of the thermal heat conduction plate 202 does not exceed the areas 500 on the left and right sides of the convex portion, so that when the thermal heat conduction plate 202 is subsequently hot-pressed on the planar optical film 204, the areas other than the convex portion of the thermal heat conduction plate 202 are ensured not to cause thermal effect on the corresponding edge area 204b of the planar optical film 204, and unnecessary size variation of the edge area 204b of the planar optical film 204 is avoided during pressing.
Next, as shown in fig. 3, the alignment Device uses an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique to align the first area 204a of the planar optical film 204 with the non-planar mirror 408 (see fig. 4). Then, as shown in FIG. 4, the attaching device is used to attach the first area 204a of the aligned planar optical film 204 to the non-planar lens 408. In the embodiment of the present invention, as shown in fig. 3 and 4, the alignment device uses a laser beam 304 emitted by a laser generating unit 302 to perform alignment on the region 304. In detail, before alignment, the holding portion 406 on the base 404 in the bonding apparatus of FIG. 4 has placed the non-planar mirror 408, and the first area 204a of the planar optical film 204 is aligned with the non-planar mirror 408 (refer to FIG. 4) at the area 300 by the laser generating unit 302, wherein the laser beam 304 emitted by the laser generating unit 302 passes through the alignment hole 410 of the upper cover 402.
Next, referring to fig. 1 again, in the method for bonding a non-planar optical film according to the embodiment of the present invention, in the pre-forming step S101, the heat conducting plate 202 having the convex portion is heated by the heat source 210 in a non-contact manner, and then the planar optical film 204 is hot-pressed, so that the first area 204a of the planar optical film 204 becomes a non-planar area following the non-planar lens 408 after contacting the convex portion, wherein the edge area 204b of the planar optical film 204 except the first area 204a is not heated by the heat source because of being shielded by the mask 208. Then, the alignment step is to align the first area 204a of the planar optical film 204 with the non-planar mirror 408 by optical axis alignment and Charge Coupled Device (CCD) alignment. Next, the bonding step bonds the first area 204a of the aligned planar optical film 204 to the non-planar mirror 408. In particular, the non-planar optical film bonding method employs a mask 208 capable of selectively shielding the heat source 210 in the pre-forming step S101, and the mask 208 is designed to cover the edge area 204b of the planar optical film 204 except for the first area 204a by the opening of the mask 208, and the edge area 204b of the planar optical film 204 corresponds to the area of the heat conducting plate 202 except for the protrusion, so that the bonding tolerance is less than 200 μm.
In addition, in an embodiment of the present invention, the method further includes: a cutting step of cutting the edge region 204b of the planar optical film 204 by non-contact cutting using a laser knife after the bonding step S103. In another embodiment of the present invention, the cutting step may be a contact cutting method, and the edge region 204b of the planar optical film 204 is cut after the bonding step S103, wherein the contact cutting method is performed by using a stamping (Punch) method.
In summary, the attaching method of the non-planar optical film according to the embodiment of the invention is used for the 3D attaching process, and the attaching tolerance is less than 200 μm. In an embodiment of the present invention, the non-planar lens 408 has an aspheric surface with a radius of curvature less than 100. Moreover, the edge region 204b of the planar optical film 204 is not heated by the heat source 210 due to the shielding of the mask 208 in the pre-forming step, so that the size of the edge region is not varied in the subsequent laminating step.
Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.
Claims (10)
1. A method for attaching a non-planar optical film, comprising: comprises the following steps:
a preforming step of performing a hot pressing of the planar optical film with a heat conducting plate having a convex portion after heated by a heat source in a non-contact manner so that a first area of the planar optical film becomes a non-planar area following the non-planar lens after contacting the convex portion, wherein an edge area other than the first area of the planar optical film is not heated by the heat source due to shielding by a mask;
aligning, by using an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique, the first area of the planar optical film to the non-planar mirror; and
and a fitting step, wherein the aligned first area of the planar optical film is fitted with the non-planar lens.
2. A method of attaching a non-planar optical film according to claim 1, wherein: the convex portion is contoured to the non-planar lens.
3. A method of attaching a non-planar optical film according to claim 1, wherein: the edge region of the planar optical film corresponds to a region other than the convex portion of the heat conductive plate, and the mask has an opening corresponding to the first region and the convex portion, so that the heat source heats the first region and the convex portion through the opening in the preforming step without contact.
4. A method of attaching a non-planar optical film according to claim 1, wherein: the heat source is an infrared heater.
5. A method of attaching a non-planar optical film according to claim 1, wherein: further comprises the following steps:
and a cutting step of cutting the edge region of the planar optical film in a non-contact cutting manner after the attaching step, wherein the non-contact cutting manner utilizes a laser knife for cutting.
6. The method of claim 1, further comprising:
and a cutting step of cutting the edge area of the planar optical film in a contact cutting manner after the attaching step, wherein the contact cutting manner is a stamping (Punch) manner.
7. A method of attaching a non-planar optical film according to claim 1, wherein: the method for attaching the non-planar optical film is used for a 3D attaching process, and the attaching tolerance is less than 200 microns.
8. A method of attaching a non-planar optical film according to claim 7, wherein: the non-planar lens has an aspheric mirror surface having a radius of curvature less than 100.
9. A system for applying a non-planar optical film, comprising: comprises the following steps:
a preforming device, comprising a heat source, a mask, a carrier and a heat conducting plate with a convex part, wherein the mask, the carrier and the heat conducting plate are sequentially arranged from near to far away from the heat source, the mask is arranged corresponding to the edge area of a planar optical film carried by the carrier, and after the convex part of the heat conducting plate is heated and hot-pressed in a non-contact way by the heat source, the first area of the planar optical film becomes a non-planar area which is profiled on a non-planar lens after contacting the convex part, but the edge area except the first area of the planar optical film is not heated by the heat source because of the shielding of the mask;
an alignment Device for aligning the first area of the planar optical film with the non-planar lens by using an optical axis alignment technique and a Charge Coupled Device (CCD) alignment technique; and
and the attaching device is used for attaching the aligned first area of the planar optical film and the non-planar lens.
10. The system for laminating a non-planar optical film according to claim 9, wherein: the edge region of the planar optical film corresponds to a region other than the convex portion of the heat conductive plate, and the mask has an opening corresponding to the first region and the convex portion, and has a fitting tolerance of less than 200 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210830612.8A CN115214162A (en) | 2022-07-15 | 2022-07-15 | Method and system for attaching non-planar optical film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210830612.8A CN115214162A (en) | 2022-07-15 | 2022-07-15 | Method and system for attaching non-planar optical film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115214162A true CN115214162A (en) | 2022-10-21 |
Family
ID=83611823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210830612.8A Pending CN115214162A (en) | 2022-07-15 | 2022-07-15 | Method and system for attaching non-planar optical film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115214162A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629888Y (en) * | 2003-05-09 | 2004-08-04 | 元利盛精密机械股份有限公司 | Regional heating back-soldering device |
| JP2005047180A (en) * | 2003-07-30 | 2005-02-24 | Fuji Heavy Ind Ltd | Method for producing honeycomb sandwich panel |
| CN101835594A (en) * | 2007-07-20 | 2010-09-15 | 依视路国际集团（光学总公司） | Method for sticking a film onto a curved substrate |
| US20140286596A1 (en) * | 2011-10-18 | 2014-09-25 | Yi Xin Chew | Packaging material, package produced therefrom and method for constructing the package |
| JP2014212192A (en) * | 2013-04-18 | 2014-11-13 | 大日本印刷株式会社 | Method for forming resist pattern and laminate structure |
| JP2018138834A (en) * | 2017-02-24 | 2018-09-06 | 昭和電工パッケージング株式会社 | Heat exchanging laminate sheet |
| US20200262131A1 (en) * | 2019-02-19 | 2020-08-20 | Airbus Operations (S.A.S.) | Method for forming a vacuum bagging film comprising the formation of ribs by buckling of the film |
| CN212579207U (en) * | 2020-06-28 | 2021-02-23 | 深圳市道元实业有限公司 | Film pasting device |
| CN113002109A (en) * | 2021-03-10 | 2021-06-22 | 业成科技（成都）有限公司 | Thermoplastic laminating method and preforming method thereof, light-transmitting structural member and electronic equipment |
| CN216285800U (en) * | 2021-08-17 | 2022-04-12 | 业泓科技(成都)有限公司 | Optical composite film |
-
2022
- 2022-07-15 CN CN202210830612.8A patent/CN115214162A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2629888Y (en) * | 2003-05-09 | 2004-08-04 | 元利盛精密机械股份有限公司 | Regional heating back-soldering device |
| JP2005047180A (en) * | 2003-07-30 | 2005-02-24 | Fuji Heavy Ind Ltd | Method for producing honeycomb sandwich panel |
| CN101835594A (en) * | 2007-07-20 | 2010-09-15 | 依视路国际集团（光学总公司） | Method for sticking a film onto a curved substrate |
| US20140286596A1 (en) * | 2011-10-18 | 2014-09-25 | Yi Xin Chew | Packaging material, package produced therefrom and method for constructing the package |
| JP2014212192A (en) * | 2013-04-18 | 2014-11-13 | 大日本印刷株式会社 | Method for forming resist pattern and laminate structure |
| JP2018138834A (en) * | 2017-02-24 | 2018-09-06 | 昭和電工パッケージング株式会社 | Heat exchanging laminate sheet |
| US20200262131A1 (en) * | 2019-02-19 | 2020-08-20 | Airbus Operations (S.A.S.) | Method for forming a vacuum bagging film comprising the formation of ribs by buckling of the film |
| CN212579207U (en) * | 2020-06-28 | 2021-02-23 | 深圳市道元实业有限公司 | Film pasting device |
| CN113002109A (en) * | 2021-03-10 | 2021-06-22 | 业成科技（成都）有限公司 | Thermoplastic laminating method and preforming method thereof, light-transmitting structural member and electronic equipment |
| CN216285800U (en) * | 2021-08-17 | 2022-04-12 | 业泓科技(成都)有限公司 | Optical composite film |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5241606A (en) | Person identification apparatus | |
| CN104919787B (en) | Image read-out | |
| TWI627590B (en) | Optical fingerprint identification module | |
| US6122394A (en) | Compact, simple, 2D raster, image-building fingerprint scanner | |
| US4053228A (en) | Finger identification | |
| WO2015049065A1 (en) | Systems and methods for sharing verified identity documents | |
| TW201239719A (en) | Hover detection in an interactive display device | |
| CN106681014B (en) | The method of high-precision beam path alignment suitable for device of high power laser | |
| CN115214162A (en) | Method and system for attaching non-planar optical film | |
| CN109447052A (en) | A kind of vena metacarpea identification device being accurately positioned palm position and its implementation | |
| US20050257700A1 (en) | Laser-assisted replication method | |
| KR101379420B1 (en) | Label for detremining authenticity of a product, method for producing authentication code of the label, methdo and system for determining authenticity of the label, mobile phone for determining authenticity of the label, and computer readable medium for determining authenticity of the label | |
| Landmann et al. | 3D shape measurement of objects with uncooperative surface by projection of aperiodic thermal patterns in simulation and experiment | |
| CN205750276U (en) | A kind of 3D bend glass exposure imaging positioning fixture | |
| JP6731460B2 (en) | Method for controlling a projector and associated electronic device | |
| TW202404819A (en) | Non-planar optical film bonding method and bonding system thereof | |
| CN111095274B (en) | Under-screen fingerprint identification module, LCD optical fingerprint identification system and electronic equipment | |
| CN109143472A (en) | The device and method for manufacturing curved fiber | |
| KR101882233B1 (en) | An apparatus for removing thermal deformation of a polarizing film of a flexible display in laser bonding | |
| CN109976011A (en) | Optical touch position identification device | |
| CN207601773U (en) | Optical touch position identification device | |
| Rauschenberger et al. | Diffractive beam shaping for enhanced laser polymer welding | |
| CN111323897A (en) | Open-air solar heating device | |
| JPH07239648A (en) | Justifiability recognizing method for data and recording medium and recognizing method used therein | |
| WO2022173370A1 (en) | Coded aperture imaging system and method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |