CN112099302A - Ultra-short-focus light-resistant projection curtain and preparation method thereof - Google Patents
Ultra-short-focus light-resistant projection curtain and preparation method thereof Download PDFInfo
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- CN112099302A CN112099302A CN202011011713.XA CN202011011713A CN112099302A CN 112099302 A CN112099302 A CN 112099302A CN 202011011713 A CN202011011713 A CN 202011011713A CN 112099302 A CN112099302 A CN 112099302A
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Abstract
The invention discloses an ultra-short focus light-resistant projection curtain and a preparation method thereof. This super short burnt anti light projection curtain includes: the optical prism comprises a bottom layer, an optical prism layer and a surface layer. Wherein, the optical prism layer is formed on at least part of the surface of the bottom layer; the optical prism layer is formed by arranging a plurality of optical prism units with triangular cross sections in the horizontal direction, each optical prism unit comprises an upper side surface, a lower side surface and a bottom surface, and the bottom surfaces are arranged on the bottom layer; the surface layer is formed on at least part of the surface of the optical prism layer far away from the bottom layer; the surface layer comprises a supporting layer, black light absorption stripes and white reflection stripes, the black light absorption stripes and the white reflection stripes are arranged alternately, and the white reflection stripes are positioned on the supporting layer attached to the lower side surface. This super short burnt light-resistant projection curtain top layer is equipped with black and white alternate stripe, only needs to laminate top layer and optical prism layer just can play the effect of absorbing ambient light, reflection projection light, can improve the yields of product greatly, effective reduction in production cost.
Description
Technical Field
The invention relates to the field of projection display, in particular to an ultra-short-focus light-resistant projection curtain and a preparation method thereof.
Background
The application of the light-resistant curtain relates to a plurality of fields such as movies, education, household, commercial and the like, and in recent years, along with the fact that laser televisions are more and more favored by people and pay more attention, the market of the curtain serving as a matched product is also larger. As one of the ultra-short focus light-resistant projection screens, the black grid projection screen mainly uses the physical structure of an optical prism unit, and black is coated on the side of the prism facing the ambient light, and a reflecting layer is coated on the side facing the projection light, so as to inhibit the interference of the ambient light. For example, patent CN201822061262.5 provides a high contrast projection screen, in which a prism structure is formed on the front surface of a substrate layer, a roughened microstructure with light absorption is provided on the upper side of the prism structure, and a reflective coating is coated on the lower side of the prism structure. Another patent CN201820317784.4 provides a light-resistant curtain, which includes a substrate layer, a plurality of prism structures and a plurality of light-absorbing regions, wherein each prism structure has a reflective layer.
The existing method for manufacturing the light absorption layer and the reflection layer of the anti-light curtain is to directly form the anti-light curtain on the optical prism structure by coating, spraying, sputtering and other modes, but the difficulty of accurately coating the anti-light curtain on the micro-convex strip structure with the micron size is higher, the whole curtain with flaws cannot be used, the yield of producing the ultra-short-focus anti-light projection curtain is lower, and the product price is high.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art. Therefore, an object of the present invention is to provide an ultra-short focus light-resistant projection curtain and a method for manufacturing the same. This super short burnt light-resistant projection curtain top layer is equipped with black and white alternate stripe, only needs to laminate top layer and optical prism layer just can play the effect of absorbing ambient light, reflection projection light, can improve the yields of product greatly, effective reduction in production cost.
In one aspect of the invention, an ultra-short-focus light-resistant projection curtain is presented. According to an embodiment of the present invention, the ultra-short-focus anti-light projection curtain comprises: a bottom layer; an optical prism layer formed on at least a part of the surface of the base layer; the optical prism layer is formed by arranging a plurality of optical prism units with triangular cross sections in the horizontal direction, each optical prism unit comprises an upper side surface, a lower side surface and a bottom surface, and the bottom surfaces are arranged on the bottom layer; the surface layer is formed on at least part of the surface of the optical prism layer far away from the bottom layer; the surface layer comprises a supporting layer, and black light absorption stripes and white reflection stripes which are formed on at least part of the surface of the supporting layer far away from the optical prism layer, wherein the black light absorption stripes and the white reflection stripes are arranged alternately, and the white reflection stripes are positioned on the supporting layer attached to the lower side surface.
According to the ultra-short focus light-resistant projection curtain of the embodiment of the invention, the surface layer comprises the support layer and black and white alternate stripes formed by the black light absorption stripes and the white reflection stripes, and the surface layer is arranged on the surface of the optical prism layer through the support layer. Compared with a light absorption layer and a reflection layer which are directly coated on the side surface of the optical prism layer, the black-white alternate stripes on the surface layer are regular and attractive in structure, and the problem that the edge of the coating is irregular due to the traditional spraying, roller coating and other modes can be solved. Meanwhile, the ultra-short-focus light-resistant projection curtain with the structural characteristics has the advantages of lower production cost and higher yield.
In addition, the ultra-short focus anti-light projection curtain according to the above embodiment of the present invention may further have the following additional technical features:
in some embodiments of the invention, the upper side surface forms an angle equal to or less than 90 ° with the bottom surface.
In some embodiments of the invention, the length of the upper side is less than the length of the lower side.
In some embodiments of the present invention, a width of the black light absorption stripe is equal to or greater than a length of the upper side, a width of the white reflection stripe is equal to or less than a length of the lower side, and a sum of the width of the black light absorption stripe and the width of the white reflection stripe is equal to a sum of the length of the upper side and the length of the lower side.
In some embodiments of the present invention, the length of the lower side surface is 1.0 to 1.3 times the width of the white reflection stripe.
In some embodiments of the invention, the bottom layer is formed of a light transmissive material or a light opaque material.
In some embodiments of the present invention, the optical prism layer is formed of an opaque material.
In some embodiments of the present invention, the support layer is formed of a light transmissive material or a light opaque material.
In some embodiments of the invention, the support layer has a thickness of less than or equal to 6 μm.
In some embodiments of the present invention, the thickness of the black light absorption stripe is 0 to 12 μm.
In some embodiments of the present invention, the thickness of the white reflective stripe is 4 to 12 μm.
In another aspect of the invention, the invention provides a method of making the ultra-short-focus light-resistant projection curtain of the above embodiments. According to an embodiment of the invention, the method comprises: applying a black light absorbing material and a white reflecting material to at least part of the surface of a support layer substrate, and forming black light absorbing stripes and white reflecting stripes which are alternately arranged on at least part of the surface of the support layer material to obtain a first precursor; applying an optical prism layer material to at least a portion of a surface of an underlying substrate to obtain a second precursor; compounding the first precursor and the second precursor and then carrying out imprinting to obtain the ultra-short focal light-resistant projection curtain; or, the first precursor is subjected to imprinting and then is compounded with the second precursor to obtain the ultra-short-focus light-resistant projection curtain.
Therefore, the method adopts a mode of directly compounding the surface layer provided with black-white alternate stripes and the optical prism layer to prepare the ultra-short-focus light-resistant projection curtain, overcomes the defect of higher technical difficulty in directly coating the light absorption layer and the reflecting layer on the side surface of the optical prism layer in the prior art, improves the yield of products and reduces the production cost of the products.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a structure of an ultra-short-focus anti-light projection curtain, according to one embodiment of the invention;
FIG. 2 is a schematic diagram of a partial structure of an optical prism layer in an ultra-short-focus anti-light projection curtain according to an embodiment of the invention;
FIG. 3 is a schematic diagram of a partial structure of a surface layer in an ultra-short focus anti-light projection curtain according to an embodiment of the invention;
FIG. 4 is a schematic diagram of a structure of an ultra-short-focus anti-light projection curtain according to another embodiment of the invention;
FIG. 5 is a schematic diagram of a structure of an ultra-short-focus anti-light projection curtain, according to another embodiment of the invention;
FIG. 6 is a schematic diagram of a structure of an ultra-short-focus anti-light projection curtain, according to another embodiment of the invention;
FIG. 7 is a schematic flow diagram of a method for producing an ultra-short-focus anti-light projection curtain, according to one embodiment of the present invention;
fig. 8 is a flow chart illustrating a method for producing an ultra-short-focus anti-light projection curtain according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention. The examples, where specific techniques or conditions are not indicated, are to be construed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In one aspect of the invention, an ultra-short-focus light-resistant projection curtain is presented. Referring to fig. 1-3, according to an embodiment of the invention, the ultra-short-focus anti-light projection curtain includes: a base layer 1, an optical prism layer 2 and a surface layer 3. Wherein, the optical prism layer 2 is formed on at least part of the surface of the bottom layer 1; the optical prism layer 2 is formed by arranging a plurality of optical prism units with triangular cross sections in the horizontal direction, each optical prism unit comprises an upper side surface 2a, a lower side surface 2b and a bottom surface 2c, and the bottom surface 2c is arranged on the bottom layer 1; the surface layer 3 is formed on at least part of the surface of the optical prism layer 2 far away from the bottom layer 1; the surface layer 3 includes a support layer 3a, and black light absorption stripes 3b and white reflection stripes 3c formed on at least a part of the surface of the support layer 3a away from the optical prism layer 2, the black light absorption stripes 3b and the white reflection stripes 3c are alternately arranged, and the white reflection stripes 3c are located on the support layer 3a attached to the lower side surface 2 b.
The ultra-short-focus anti-light projection curtain according to the above-described embodiment of the present invention is further described in detail below.
Referring to fig. 1, a projection beam generated by a projection device (a) is first projected to a white reflection stripe 3c, and then reflected by the white reflection stripe 3c and enters an eye (B) of a viewer. When the ambient light source (C) also generates an ambient light beam to the surface layer of the light-resistant curtain, the ambient light beam is absorbed by the black light-absorbing stripes 3b, thereby achieving the light-resistant effect.
According to some embodiments of the invention, the upper side surface 2a forms an angle α with the bottom surface 2c equal to or smaller than 90 °. Specifically, α may be 90 °, 85 °, 80 °, 75 °, 70 °, 65 °, 60 °, 50 °, 40 °, or the like. Therefore, the projection effect of the ultra-short-focus light-resistant projection curtain can be further improved.
According to some embodiments of the invention, the length L1 of the upper side 2a is smaller than the length L2 of the lower side 2 b. Therefore, the projection effect of the ultra-short-focus light-resistant projection curtain can be further improved.
According to some embodiments of the present invention, the width W1 of the black light absorption stripe 3b is equal to or greater than the length L1 of the upper side 2a, the width W2 of the white reflection stripe 3c is equal to or less than the length L2 of the lower side 2b, and the sum of the width W1 of the black light absorption stripe 3b and the width W2 of the white reflection stripe 3c is equal to the sum of the length L1 of the upper side 2a and the length L2 of the lower side 2 b. Therefore, the projection effect of the ultra-short-focus light-resistant projection curtain can be further improved.
According to some embodiments of the invention, the length L2 of the lower side 2b is 1.0-1.3 times, such as 1.0 times, 1.05 times, 1.1 times, 1.15 times, 1.2 times, 1.25 times, 1.3 times, etc., the width W2 of the white reflective stripe 3 c. The inventors have found that the width of the reflective stripes affects the reflective effect, and the projection effect of the ultra-short focus light-resistant projection screen can be further improved by controlling the width within the above range.
According to some embodiments of the invention, the bottom layer 1 may be formed of a light transmissive material or a light opaque material. Specifically, the base material of the bottom layer 1 may be one of PET, PVC, PP, PC, and TPU, and when the bottom layer 1 is made of an opaque material, a dark color paint such as black may be added to the base material to obtain an opaque bottom layer. The bottom layer 1 preferably adopts opaque material, and from this, bottom layer 1 can regard as the first extinction mechanism of absorption anti light projection curtain back ambient light, and cooperation optics prism layer 2, double-deck extinction mechanism can further improve the extinction effect of anti light projection curtain, reduces the influence of ambient light to the projection effect, improves the contrast of anti light projection curtain.
According to some embodiments of the present invention, the thickness of the bottom layer 1 may be 50 to 150 μm, such as 50 μm, 75 μm, 100 μm, 125 μm, 150 μm, and the like. The inventor finds in research that the bottom layer with too small thickness can not support other material layers; if the thickness of the bottom layer is too large, the bottom layer is not easy to roll and the weight of the curtain is increased too much.
According to some embodiments of the present invention, the optical prism layer 2 is formed of an opaque material, preferably an ultraviolet curable resin, a thermoplastic resin, or a dual curable resin containing a black or dark color-based paint, or a dark color-based pigment or dye, etc. Specifically, the ultraviolet curable resin may be at least one selected from acrylate resins, epoxy acrylate resins, aliphatic urethane acrylate resins, aromatic urethane acrylate resins, polyester acrylate resins, and the like, the thermoplastic resin may be at least one selected from PP, PE, PS, TPU, PVC, PC, and the like, and the dual curable resin may be at least one selected from polyacrylate resins containing epoxy groups, urethane acrylate resins containing isocyanate groups, and the like. Thus, the optical prism layer 2 can be formed by an ultraviolet curing method, a hot pressing method, or a curing method in which light curing is combined with heat curing or addition curing.
According to some embodiments of the present invention, the support layer 3a may be formed of a light transmissive material or a light opaque material. Specifically, the material of the supporting layer 3a may be one of PET, PVC, PP, PC, and TPU, and when the supporting layer 3a is made of an opaque material, a dark color paint such as black may be added to the material to obtain the opaque supporting layer. When the supporting layer 3a is made of opaque material, it can be used as a second light absorption mechanism for absorbing the ambient light above the light-resistant projection curtain after the black light absorption stripes, thereby further improving the light absorption effect of the light-resistant projection curtain and reducing the influence of the ambient light on the projection effect.
According to some embodiments of the present invention, the thickness of the support layer 3a is less than or equal to 6 μm, and may be, for example, 6 μm, 5 μm, 4 μm, 3 μm, 2 μm, 1 μm, 0.5 μm, or the like. If the thickness of the support layer 3a is too large, the difficulty of combining the support layer 3a with the optical prism layer 2 increases.
According to some embodiments of the present invention, the black light absorption stripe 3b is a black paint or ink. Specifically, one of the black paints such as carbon black, black iron oxide, black copper-chromium black and black iron-chromium black may be used, and black ink may be used as the black ink. The black light-absorbing stripes 3b may be coated on the surface of the support layer 3a by applying the above-mentioned coating or ink by roll coating, spray coating, screen printing, or the like.
According to some embodiments of the present invention, the thickness of the black light absorption stripe 3b may be 0 to 12 μm, for example, 0 μm, 0.5 μm, 1 μm, 2 μm, 3 μm, 5 μm, 6 μm, 9 μm, 10 μm, 12 μm, and the like. If the thickness of the black light absorption stripe 3b is too large, the difficulty of combining the surface layer 3 and the optical prism layer 2 is increased, and the waste of raw materials and the increase of the overall weight of the curtain are also caused.
According to some embodiments of the present invention, the thickness of the black light absorption stripes is 0 μm, that is, the surface layer 3 does not have the black light absorption stripes, and thus, only the white reflective stripes 3c are disposed on the supporting layer 3a, which is beneficial to the absorption of the ambient light above the light-resistant projection curtain by the optical prism layer 2 through the supporting layer 3a, and the projection effect of the ultra-short-focus light-resistant projection curtain is improved.
According to some embodiments of the present invention, the white reflective stripe 3c is composed of a white paint or ink. Specifically, one of particle paints such as titanium oxide, zinc oxide, zirconium oxide, aluminum oxide, and barium sulfate may be used as the white paint, and white ink or pearl ink may be used as the white ink. The white reflective stripes 3c may be formed by applying the above-mentioned paint or ink to the surface of the support layer 3a by roll coating, spray coating, screen printing, or the like.
According to some embodiments of the present invention, the thickness of the white reflective stripes 3c may be 4 to 12 μm, such as 4 μm, 5 μm, 6 μm, 7 μm, 8 μm, 9 μm, 10 μm, 11 μm, 12 μm, and the like. If the thickness of the white reflection stripe 3c is too small, the coverage rate is insufficient and the gain is small; if the thickness of the white reflective stripe 3c is too large, the difficulty of combining the surface layer 3 and the optical prism layer 2 is increased, and the waste of raw materials and the increase of the overall weight of the curtain are also caused.
In another aspect of the invention, the invention provides a method of making the ultra-short-focus light-resistant projection curtain of the above embodiments. According to an embodiment of the invention, the method comprises: applying a black light absorbing material and a white reflecting material to at least part of the surface of the support layer substrate, and forming black light absorbing stripes and white reflecting stripes which are alternately arranged on at least part of the surface of the support layer substrate to obtain a first precursor; applying an optical prism layer material to at least a portion of a surface of an underlying substrate to obtain a second precursor; compounding the first precursor and the second precursor and then carrying out imprinting to obtain the ultra-short focus light-resistant projection curtain of the embodiment; or, the first precursor is imprinted and then compounded with the second precursor to obtain the ultra-short focus anti-light projection curtain of the above embodiment.
Therefore, the method adopts a mode of directly compounding the surface layer provided with black-white alternate stripes and the optical prism layer to prepare the ultra-short-focus light-resistant projection curtain, overcomes the defect of higher technical difficulty in directly coating the light absorption layer and the reflecting layer on the side surface of the optical prism layer in the prior art, improves the yield of products and reduces the production cost of the products.
Referring to fig. 7, the above method for preparing an ultra-short-focus anti-light projection curtain, according to some embodiments of the present invention, includes: coating black ink or paint and white ink or paint on the base material of the supporting layer by roller coating, spraying or silk-screen printing to form black and white stripes; compounding the bottom layer and a thermoplastic resin sheet together (hot-pressing compounding or gluing and then compounding under normal pressure), or coating ultraviolet curing resin, thermoplastic resin or dual curing resin on a bottom substrate to perform precuring to form a resin-compounded bottom layer; and compounding the support layer provided with the black-white alternate stripes and the bottom layer compounded with the resin, then pressing the optical prism units, and finally curing to form the ultra-short-focus light-resistant projection curtain.
Referring to fig. 8, according to other embodiments of the present invention, the method for preparing an ultra-short focus anti-light projection curtain includes: coating black ink or paint and white ink or paint on the base material of the supporting layer by roller coating, spraying or silk-screen printing to form black and white stripes; compounding the bottom layer and a thermosetting resin sheet together (hot-pressing compounding or gluing and then normal-pressure compounding) and then impressing, or coating ultraviolet curing resin, thermoplastic resin or dual curing resin on a bottom layer substrate and impressing and curing to form an optical prism layer compounded with the bottom layer; and compounding the support layer provided with the black and white alternate stripes and the optical prism layer compounded with the bottom layer to form the ultra-short-focus light-resistant projection curtain.
In addition, it should be noted that all the features and advantages described above for the ultra-short focus light-resistant projection curtain are also applicable to the method for preparing the ultra-short focus light-resistant projection curtain, and are not described in detail herein.
The invention will now be described with reference to specific examples, which are intended to be illustrative only and not to be limiting in any way.
Example 1
Referring to fig. 1, an ultra-short focus light-resistant projection curtain includes: a base layer 1, an optical prism layer 2 and a surface layer 3. Wherein, the optical prism layer 2 is formed on at least part of the surface of the bottom layer 1; the optical prism layer 2 is formed by arranging a plurality of optical prism units with triangular cross sections in the horizontal direction, each optical prism unit comprises an upper side surface 2a, a lower side surface 2b and a bottom surface 2c, and the bottom surface 2c is arranged on the bottom layer 1; the surface layer 3 is formed on at least part of the surface of the optical prism layer 2 far away from the bottom layer 1; the surface layer 3 includes a support layer 3a, and black light absorption stripes 3b and white reflection stripes 3c formed on at least a part of the surface of the support layer 3a away from the optical prism layer 2, the black light absorption stripes 3b and the white reflection stripes 3c are alternately arranged, and the white reflection stripes 3c are located on the support layer 3a attached to the lower side surface 2 b. The bottom layer 1 and the support layer 3a are made of light-transmitting materials.
Example 2
Referring to fig. 4, the ultra-short focus anti-light projection curtain includes: a base layer 21, an optical prism layer 22, and a surface layer 23. The surface layer 23 includes a support layer 23a, and white reflective stripes 23c formed on at least a portion of the surface of the support layer 23a away from the optical prism layer 22, wherein the white reflective stripes 23c are located on the support layer 23a attached to the lower side surface of the optical prism layer 22. Other structural features of the ultra-short focus light-resistant projection curtain are the same as those of embodiment 1.
The surface layer 23 of the ultra-short-focus light-resistant projection curtain only has white reflection stripes 23c but not black light-absorbing stripes 23b, and the light transmittance of the supporting layer 23a is greater than or equal to 95%, which is beneficial to the absorption of the ambient light above the light-resistant projection curtain by the optical prism layer 22 through the supporting layer 23 a.
Example 3
Referring to fig. 5, the ultra-short focus anti-light projection curtain includes: a base layer 31, an optical prism layer 32, and a surface layer 33. The surface layer 33 includes a support layer 33a, and black light absorbing stripes 33b and white reflective stripes 33c formed on at least a portion of the surface of the support layer 33a away from the optical prism layer 32, and the white reflective stripes 33c are located on the support layer 23a attached to the lower side of the optical prism layer 32. The bottom layer 31 is made of black opaque material. Other structural features of the ultra-short focus light-resistant projection curtain are the same as those of embodiment 1.
Example 4
Referring to fig. 6, the ultra-short focus anti-light projection curtain includes: a base layer 41, an optical prism layer 42, and a surface layer 43. The surface layer 43 includes a support layer 43a, and black light absorption stripes 43b and white reflection stripes 43c formed on at least a portion of the surface of the support layer 43a away from the optical prism layer 42, and the white reflection stripes 43c are located on the support layer 43a attached to the lower side of the optical prism layer 42. The bottom layer 41 and the supporting layer 43a are made of opaque materials. Other structural features of the ultra-short focus light-resistant projection curtain are the same as those of embodiment 1.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An ultra-short-focus light-resistant projection curtain, comprising:
a bottom layer;
an optical prism layer formed on at least a part of the surface of the base layer; the optical prism layer is formed by arranging a plurality of optical prism units with triangular cross sections in the horizontal direction, each optical prism unit comprises an upper side surface, a lower side surface and a bottom surface, and the bottom surfaces are arranged on the bottom layer;
the surface layer is formed on at least part of the surface of the optical prism layer far away from the bottom layer; the surface layer comprises a supporting layer, and black light absorption stripes and white reflection stripes which are formed on at least part of the surface of the supporting layer far away from the optical prism layer, wherein the black light absorption stripes and the white reflection stripes are arranged alternately, and the white reflection stripes are positioned on the supporting layer attached to the lower side surface.
2. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the upper side surface forms an angle with the bottom surface equal to or less than 90 °.
3. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the length of the upper side is less than the length of the lower side.
4. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the width of the black light-absorbing stripes is equal to or greater than the length of the upper side, the width of the white reflective stripes is equal to or less than the length of the lower side, and the sum of the width of the black light-absorbing stripes and the width of the white reflective stripes is equal to the sum of the length of the upper side and the length of the lower side.
5. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the length of the lower side surface is 1.0-1.3 times the width of the white reflective stripes.
6. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the bottom layer is formed of a light transmissive material or a light opaque material;
optionally, the optical prism layer is formed of an opaque material;
optionally, the support layer is formed of a light transmissive material or a light opaque material.
7. The ultra-short-focus light-resistant projection curtain of claim 1, wherein the thickness of the support layer is less than or equal to 6 μ ι η.
8. The ultra-short-focus anti-light projection curtain as claimed in claim 1, wherein the black light absorption stripes have a thickness of 0-12 μm.
9. The ultra-short-focus anti-light projection curtain as claimed in claim 1, wherein the thickness of the white reflective stripes is 4-12 μm.
10. A method of making the ultra-short-focus light-resistant projection curtain of any one of claims 1-9, comprising:
applying a black light absorbing material and a white reflecting material to at least part of the surface of a support layer substrate, and forming black light absorbing stripes and white reflecting stripes which are alternately arranged on at least part of the surface of the support layer material to obtain a first precursor;
applying an optical prism layer material to at least a portion of a surface of an underlying substrate to obtain a second precursor;
compounding the first precursor and the second precursor and then carrying out imprinting to obtain the ultra-short focal light-resistant projection curtain; or, the first precursor is subjected to imprinting and then is compounded with the second precursor to obtain the ultra-short-focus light-resistant projection curtain.
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| CN202011011713.XA CN112099302B (en) | 2020-09-23 | 2020-09-23 | Ultra-short-focus light-resistant projection curtain and preparation method thereof |
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| CN202011011713.XA CN112099302B (en) | 2020-09-23 | 2020-09-23 | Ultra-short-focus light-resistant projection curtain and preparation method thereof |
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| US20110176209A1 (en) * | 2010-01-18 | 2011-07-21 | Seiko Epson Corporation | Screen fabric and screen |
| JP2012252112A (en) * | 2011-06-01 | 2012-12-20 | Dainippon Printing Co Ltd | Reflection screen and method for manufacturing the same |
| CN106054513A (en) * | 2016-08-19 | 2016-10-26 | 简铭镇 | Ultra-short-focus projection curtain |
| CN108153102A (en) * | 2016-12-05 | 2018-06-12 | 深圳市光峰光电技术有限公司 | Projection screen and its manufacturing method |
| CN109752911A (en) * | 2017-11-07 | 2019-05-14 | 深圳光峰科技股份有限公司 | Anti-light screen and its manufacturing method |
| CN109884855A (en) * | 2017-12-05 | 2019-06-14 | 深圳光峰科技股份有限公司 | Anti-light screen and its manufacturing method |
| CN111077722A (en) * | 2018-10-18 | 2020-04-28 | 深圳光峰科技股份有限公司 | Projection screen and processing method thereof |
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| US20110176209A1 (en) * | 2010-01-18 | 2011-07-21 | Seiko Epson Corporation | Screen fabric and screen |
| JP2012252112A (en) * | 2011-06-01 | 2012-12-20 | Dainippon Printing Co Ltd | Reflection screen and method for manufacturing the same |
| CN106054513A (en) * | 2016-08-19 | 2016-10-26 | 简铭镇 | Ultra-short-focus projection curtain |
| CN108153102A (en) * | 2016-12-05 | 2018-06-12 | 深圳市光峰光电技术有限公司 | Projection screen and its manufacturing method |
| CN109752911A (en) * | 2017-11-07 | 2019-05-14 | 深圳光峰科技股份有限公司 | Anti-light screen and its manufacturing method |
| CN109884855A (en) * | 2017-12-05 | 2019-06-14 | 深圳光峰科技股份有限公司 | Anti-light screen and its manufacturing method |
| CN111077722A (en) * | 2018-10-18 | 2020-04-28 | 深圳光峰科技股份有限公司 | Projection screen and processing method thereof |
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| CN112099302B (en) | 2022-05-17 |
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