US20190080566A1 - Indicating/alarming apparatus - Google Patents
Indicating/alarming apparatus Download PDFInfo
- Publication number
- US20190080566A1 US20190080566A1 US16/126,279 US201816126279A US2019080566A1 US 20190080566 A1 US20190080566 A1 US 20190080566A1 US 201816126279 A US201816126279 A US 201816126279A US 2019080566 A1 US2019080566 A1 US 2019080566A1
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- United States
- Prior art keywords
- light
- optically transparent
- transparent polymer
- polymer plate
- indicating
- 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.)
- Granted
Links
- 229920000642 polymer Polymers 0.000 claims abstract description 76
- 239000002184 metal Substances 0.000 claims description 6
- 239000010985 leather Substances 0.000 claims description 3
- 239000004065 semiconductor Substances 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 230000004048 modification Effects 0.000 description 19
- 238000012986 modification Methods 0.000 description 19
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 6
- 239000000084 colloidal system Substances 0.000 description 3
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229920000298 Cellophane Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Natural products C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 235000015096 spirit Nutrition 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
- G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
- G08B5/36—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission using visible light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/006—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to produce indicia, symbols, texts or the like
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
- G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
- G08B7/062—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources indicating emergency exits
Definitions
- the invention relates to an indicating/alarming apparatus, and in particular, to a flexible indicating/alarming apparatus.
- the prior arts mostly use hard and thick transparent acrylic plates as light-guiding plates, and light-emitting diode devices.
- the light-emitting diode device emits a light entering from the side surface of the hard and thick transparent acrylic plate into the transparent acrylic plate.
- the light is guided by the hard and thick transparent acrylic plate to exit from the front surface of the transparent acrylic plate.
- the pattern representative of c to indication or alarming is exhibited by sticking colored cellophanes on the front surface of the hard and thick transparent acrylic plate.
- the structure of current escape indicator is identical to those of the prior arts mentioned above.
- the indication/alarming apparatus of the prior art is not flexible and has limited range of applications.
- the pattern of the indication/alarming apparatus of the prior art is exhibited by the light-shielding layer, and the area of other region other than the pattern, which the light exits from, is larger than that of the pattern. By contrast, and the contrast between the pattern and other region is smaller.
- one scope of the invention is to provide a flexible indicating/alarming apparatus to broaden application range thereof.
- the indicating/alarming apparatus according to the invention is modified to exhibit the pattern by the light-exiting region to enhance the contrast between the pattern and other region.
- An indicating/alarming apparatus includes an optically transparent polymer plate, a light-shielding layer, a flexible circuit board, a plurality of light-emitting devices and a light-reflecting layer.
- the optically transparent polymer plate has an upper surface, a lower surface opposite to the upper surface, a top side surface, a bottom side surface opposite to the top side surface, a first edge surface, a second edge surface opposite to the first edge surface, and an opening formed on the lower surface.
- the opening is adjacent to the top side surface, and has a light incident face.
- the light-shielding layer is formed to overlay the upper surface of the optically transparent polymer plate.
- the plurality of light-emitting devices are soldered on the flexible circuit board.
- the flexible circuit board is mounted on the lower surface of the optically transparent polymer plate such that the plurality of light-emitting devices are disposed within an opening formed on the lower surface of the optically transparent polymer plate.
- Each light-emitting device emits a light entering from the light incident face of the opening into the optically transparent polymer plate which guides the light to exit from the top side surface, the bottom side surface, the first edge surface, the second edge surface and sites on the upper surface and the lower surface whose total reflection is broken.
- the light-shielding layer and the light reflecting layer are formed to respectively overlay the upper surface and lower surface of the optically transparent polymer board, and protect the optically transparent polymer board from decay induced by sunshine and failure induced by external force.
- the upper surface of the optically transparent polymer plate thereon defines a first light-exiting region.
- the light-shielding layer overlays the upper surface other than the first light-exiting region of the optically transparent polymer plate. The light is guided by the optically transparent polymer plate to also exit from the first light-exiting region.
- the lower surface of the optically transparent polymer plate thereon defines a second light-exiting region.
- the light-reflecting layer overlays the lower surface other than the second light-exiting region of the optically transparent polymer plate. The light is guided by the optically transparent polymer plate to also exit from the second light-exiting region.
- the first light-exiting region and the second light-exiting region respectively extend along the first edge surface, the bottom side surface and the second edge surface of the optically transparent polymer plate.
- the first edge surface, the bottom side surface and the second edge surface of the optically transparent polymer plate respectively form a curved surface.
- the first light-exiting region corresponds to a pattern.
- the optically transparent polymer plate has a plurality of recesses corresponding to the pattern. Each recess has a respective depth. The depths of the recesses adjacent to the light-emitting devices are shallower than those of the recesses depart from the light-emitting devices. The difference in the depth of the recesses is to control the amount of light exiting to make light exiting regarding each glyph or pattern uniform.
- the light-shielding layer can be formed of a dark ink layer, a leather layer, a wood layer, a first metal layer, a first polymer layer and so on.
- the light-reflecting layer can be formed of a light ink layer, a second metal layer, a second polymer layer and so on.
- each the light-emitting device can be a semiconductor light-emitting diode device or an organic light-emitting diode device.
- the indicating/alarming apparatus according to the invention can expand application range thereof. Moreover, the indicating/alarming apparatus according to the invention is modified to exhibit the pattern by the light-exiting region to enhance the contrast between the pattern and other region.
- FIG. 1 is a top view of an indicating/alarming apparatus according to a preferred embodiment of the invention.
- FIG. 2 is a bottom view of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 3 is a side view of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 4 is a perspective view of an optically transparent polymer plate, an essential component of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 5 is a top view of a modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 6 is a side view of the modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 7 is a bottom view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 8 is a side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 9 is another side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 10 is a top view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIG. 11 is a cross sectional view of the indicating/alarming apparatus taken along the A-A line of FIG. 10 .
- FIG. 12 is a side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention.
- FIGS. 1 to 4 those drawings schematically illustrate an indicating/alarming apparatus 1 according to a preferred embodiment of the invention.
- FIG. 1 schematically illustrates with a top view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 2 schematically illustrates with a bottom view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 3 schematically illustrates with a side view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 4 schematically illustrates with a perspective view an optically transparent polymer plate 10 , an essential component of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- the indicating/alarming apparatus 1 includes an optically transparent polymer plate 10 , a light-shielding layer 12 , a flexible circuit board 14 , a plurality of light-emitting devices 16 and a light-reflecting layer 18 .
- the optically transparent polymer plate 10 has an upper surface 100 , a lower surface 101 opposite to the upper surface 100 , a top side surface 102 , a bottom side surface 103 opposite to the top side surface 102 , a first edge surface 104 , a second edge surface 105 opposite to the first edge surface 104 , and an opening 106 formed on the lower surface 101 .
- the opening 106 is adjacent to the top side surface 102 , and has a light incident face 107 .
- the optically transparent polymer plate 10 can be formed of polymethylmethacrylate (PMMA), silicone, polycarbonate (PC), thermoplastic polyurethane (TPU), polystyrene (PS), MMA Styrene copolymer (MS), or other commercial light-guiding polymers.
- PMMA polymethylmethacrylate
- PC polycarbonate
- TPU thermoplastic polyurethane
- PS polystyrene
- MS MMA Styrene copolymer
- the thickness of the optically transparent polymer plate 10 can be determined as needed, and is not particularly limited.
- the light-shielding layer 12 is formed to overlay the upper surface 100 of the optically transparent polymer plate 10 .
- the plurality of light-emitting devices 16 are soldered on the flexible circuit board 14 .
- the flexible circuit board 14 is mounted on the lower surface 101 of the optically transparent polymer plate 10 such that the plurality of light-emitting devices 16 are disposed within an opening 106 formed on the lower surface 101 of the optically transparent polymer plate 10 .
- Each light-emitting device 16 emits a light entering from the light incident face 107 of the opening 106 into the optically transparent polymer plate 10 which guides the light to exit from the top side surface 102 , the bottom side surface 103 , the first edge surface 104 and the second edge surface 105 .
- the light-shielding layer 12 blocks the light from exiting from the optically transparent polymer plate 10 .
- the light-reflecting layer 18 is formed to overlay the lower surface 101 of the optically transparent polymer plate 10 , and is for reflecting the light incident to the light-reflecting layer 18 .
- the flexible circuit board 14 is mounted on light-reflecting layer 18 .
- the flexible circuit board 14 is previously mounted on the lower surface 101 of the optically transparent polymer plate 10 , and then the light-reflecting layer 18 overlays the flexible circuit board 14 .
- the light-shielding layer 12 can be formed of a dark ink layer, a leather layer, a wood layer, a first metal layer, a first polymer layer and so on.
- the light-reflecting layer 18 can be formed of a light ink layer, a second metal layer, a second polymer layer and so on.
- each the light-emitting device 16 can be a semiconductor light-emitting diode device or an organic light-emitting diode device.
- FIGS. 5 and 6 those drawings schematically illustrate a modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 5 schematically illustrates with a top view the modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 6 schematically illustrates with a side view the modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- the upper surface 100 of the optically transparent polymer plate 10 thereon defines a first light-exiting region 108 .
- the light-shielding layer 12 overlays the upper surface 100 other than the first light-exiting region 108 of the optically transparent polymer plate 10 .
- the light is guided by the optically transparent polymer plate 10 to also exit from the first light-exiting region 108 .
- the components and devices in FIGS. 5 and 6 identical to those shown in FIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein.
- the first light-exiting region 108 extends along the first edge surface 104 , the bottom side surface 103 and the second edge surface 105 of the optically transparent polymer plate 10 .
- FIGS. 7 and 8 those drawings schematically illustrate another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 7 schematically illustrates with a bottom view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 8 schematically illustrates with a side view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- the lower surface 101 of the optically transparent polymer plate 10 thereon defines a second light-exiting region 109 .
- the light-reflecting layer 18 overlays the lower surface 101 other than the second light-exiting region 109 of the optically transparent polymer plate 10 .
- the light is guided by the optically transparent polymer plate 10 to also exit from the second light-exiting region 109 .
- the components and devices in FIGS. 7 and 8 identical to those shown in FIGS. 2 and 3 are given the same numerical notations, and will be not described in detail herein.
- the second light-exiting region 109 extends along the first edge surface 104 , the bottom side surface 103 and the second edge surface 105 of the optically transparent polymer plate 10 .
- the first light-exiting region 108 also extends along the first edge surface 104 , the bottom side surface 103 and the second edge surface 105 of the optically transparent polymer plate 10 .
- the first light-exiting region 108 and the second light-exiting region 109 can be formed by a CNC processing machine, an engraving machine, a laser processing machine or other processing equipment.
- FIG. 9 is a side view regarding the bottom side surface 103 of another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- the first edge surface 104 , the bottom side surface 103 and the second edge surface 105 of the optically transparent polymer plate 10 respectively form a curved surface.
- the first side surface 104 and the second side surface 105 both are curved surfaces such that the angle of light emission is wider.
- the components and devices in FIG. 9 identical to those shown in FIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein.
- the indicating/alarming apparatus 1 has flexibility, and the light exits at a wide angle from the side surfaces of the indicating/alarming apparatus 1 . Therefore, the indicating/alarming apparatus 1 of the invention can be fixed to a vehicle (for example, a bicycle) for alarming purposes.
- the indicating/alarming apparatus 1 of the invention can also be used as an indication for advertising signs and the like.
- FIGS. 10 and 11 those drawings schematically illustrate another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 10 schematically illustrates with a top view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- FIG. 11 is a cross sectional view of the indicating/alarming apparatus 1 taken along the A-A line of FIG. 10 .
- the first light-exiting region 108 corresponds to a pattern.
- the indicating/alarming apparatus 1 according to the invention is modified to exhibit the pattern by the light-exiting region 108 to enhance the contrast between the pattern and other region.
- the indication/warning device 1 as shown in FIGS. 10 and 11 is advantageous for indication purposes.
- the optically transparent polymer plate 10 has a plurality of recesses 11 corresponding to the pattern. Each recess 11 has a respective depth. The depths of the recesses 11 adjacent to the bottom side surface 103 of the optically transparent polymer plate 10 are deeper than those of the recesses 11 depart from the bottom side surface 103 of the optically transparent polymer plate 10 . The difference in the depth of the recesses 11 is to control the amount of light exiting to make light exiting regarding each glyph or pattern uniform. By varying the depths of the plurality of recess 11 , the illumination is controlled to be uniform at different locations in the particular pattern, and thereby the identifiability of the pattern can be enhanced.
- the components and devices in FIGS. 10 and 11 identical to those shown in FIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein.
- FIG. 12 schematically illustrates with a side view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.
- the indicating/alarming apparatus 1 also includes a plurality of colored translucent layers 13 .
- the first light-exiting region 108 corresponds to a pattern.
- the optically transparent polymer plate 10 has plurality of recesses 11 corresponding to the pattern.
- the function of the plurality of recesses 11 is to destroy the total reflection of the upper surface 100 of the optically transparent polymer plate 10 to allow light to exit, and the overall appearance of the plurality of recesses 11 can present patterns and characters.
- Each colored translucent layer 13 corresponds to one of the recesses 11 and is filled in the corresponding recess 11 .
- the colored translucent layer 13 can be formed by doping the corresponding depressions 11 by doping a polymer colloid (for example, silicone) with wavelength-converting particles such as toner, phosphor powder or quantum dots, filing the doped polymer colloid in the corresponding recess 11 , and then curing the doped polymer colloid in the corresponding recess 11 .
- a polymer colloid for example, silicone
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Abstract
The invention discloses an indicating/alarming apparatus which includes an optically transparent polymer plate, a light-shielding layer, a flexible circuit board, a plurality of light-emitting devices and a light-reflecting layer. The light-shielding layer is formed to overlay an upper surface of the optically transparent polymer plate. The plurality of light-emitting devices are soldered on the flexible circuit board. The flexible circuit board is mounted on a lower surface of the optically transparent polymer plate such that the plurality of light-emitting devices are disposed within an opening formed on the lower surface of the optically transparent polymer plate. Each light-emitting device emits a light entering from a light incident face of the opening into the optically transparent polymer plate which guides, due to total reflection, the light to exit from a top side surface, a bottom side surface, a first edge surface, a second edge surface and sites on surfaces whose total reflection is broken. The light-reflecting layer is formed to overlay the lower surface of the optically transparent polymer plate to reflect the light.
Description
- This utility application claims priorities to Taiwan Application Serial Number 106131017, filed Sep. 11, 2017, which is incorporated herein by reference.
- The invention relates to an indicating/alarming apparatus, and in particular, to a flexible indicating/alarming apparatus.
- As for the prior arts of the indication/alarming apparatuses, the prior arts mostly use hard and thick transparent acrylic plates as light-guiding plates, and light-emitting diode devices. The light-emitting diode device emits a light entering from the side surface of the hard and thick transparent acrylic plate into the transparent acrylic plate. The light is guided by the hard and thick transparent acrylic plate to exit from the front surface of the transparent acrylic plate. The pattern representative of c to indication or alarming is exhibited by sticking colored cellophanes on the front surface of the hard and thick transparent acrylic plate. For example, the structure of current escape indicator is identical to those of the prior arts mentioned above.
- However, the indication/alarming apparatus of the prior art is not flexible and has limited range of applications. In addition, the pattern of the indication/alarming apparatus of the prior art is exhibited by the light-shielding layer, and the area of other region other than the pattern, which the light exits from, is larger than that of the pattern. By contrast, and the contrast between the pattern and other region is smaller.
- Accordingly, one scope of the invention is to provide a flexible indicating/alarming apparatus to broaden application range thereof. Moreover, the indicating/alarming apparatus according to the invention is modified to exhibit the pattern by the light-exiting region to enhance the contrast between the pattern and other region.
- An indicating/alarming apparatus according to a first preferred embodiment of the invention includes an optically transparent polymer plate, a light-shielding layer, a flexible circuit board, a plurality of light-emitting devices and a light-reflecting layer. The optically transparent polymer plate has an upper surface, a lower surface opposite to the upper surface, a top side surface, a bottom side surface opposite to the top side surface, a first edge surface, a second edge surface opposite to the first edge surface, and an opening formed on the lower surface. The opening is adjacent to the top side surface, and has a light incident face. The light-shielding layer is formed to overlay the upper surface of the optically transparent polymer plate. The plurality of light-emitting devices are soldered on the flexible circuit board. The flexible circuit board is mounted on the lower surface of the optically transparent polymer plate such that the plurality of light-emitting devices are disposed within an opening formed on the lower surface of the optically transparent polymer plate. Each light-emitting device emits a light entering from the light incident face of the opening into the optically transparent polymer plate which guides the light to exit from the top side surface, the bottom side surface, the first edge surface, the second edge surface and sites on the upper surface and the lower surface whose total reflection is broken. The light-shielding layer and the light reflecting layer are formed to respectively overlay the upper surface and lower surface of the optically transparent polymer board, and protect the optically transparent polymer board from decay induced by sunshine and failure induced by external force.
- In on modification of the invention, the upper surface of the optically transparent polymer plate thereon defines a first light-exiting region. The light-shielding layer overlays the upper surface other than the first light-exiting region of the optically transparent polymer plate. The light is guided by the optically transparent polymer plate to also exit from the first light-exiting region.
- Further, the lower surface of the optically transparent polymer plate thereon defines a second light-exiting region. The light-reflecting layer overlays the lower surface other than the second light-exiting region of the optically transparent polymer plate. The light is guided by the optically transparent polymer plate to also exit from the second light-exiting region.
- In one embodiment, the first light-exiting region and the second light-exiting region respectively extend along the first edge surface, the bottom side surface and the second edge surface of the optically transparent polymer plate.
- In one embodiment, the first edge surface, the bottom side surface and the second edge surface of the optically transparent polymer plate respectively form a curved surface.
- In one embodiment, the first light-exiting region corresponds to a pattern. The optically transparent polymer plate has a plurality of recesses corresponding to the pattern. Each recess has a respective depth. The depths of the recesses adjacent to the light-emitting devices are shallower than those of the recesses depart from the light-emitting devices. The difference in the depth of the recesses is to control the amount of light exiting to make light exiting regarding each glyph or pattern uniform.
- In one embodiment, the light-shielding layer can be formed of a dark ink layer, a leather layer, a wood layer, a first metal layer, a first polymer layer and so on.
- In one embodiment, the light-reflecting layer can be formed of a light ink layer, a second metal layer, a second polymer layer and so on.
- In one embodiment, each the light-emitting device can be a semiconductor light-emitting diode device or an organic light-emitting diode device.
- Distinguishable from the prior arts, the indicating/alarming apparatus according to the invention can expand application range thereof. Moreover, the indicating/alarming apparatus according to the invention is modified to exhibit the pattern by the light-exiting region to enhance the contrast between the pattern and other region.
- The advantage and spirit of the invention may be understood by the following recitations together with the appended drawings.
-
FIG. 1 is a top view of an indicating/alarming apparatus according to a preferred embodiment of the invention. -
FIG. 2 is a bottom view of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 3 is a side view of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 4 is a perspective view of an optically transparent polymer plate, an essential component of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 5 is a top view of a modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 6 is a side view of the modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 7 is a bottom view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 8 is a side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 9 is another side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 10 is a top view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. -
FIG. 11 is a cross sectional view of the indicating/alarming apparatus taken along the A-A line ofFIG. 10 . -
FIG. 12 is a side view of another modification of the indicating/alarming apparatus according to the preferred embodiment of the invention. - Referring to
FIGS. 1 to 4 , those drawings schematically illustrate an indicating/alarming apparatus 1 according to a preferred embodiment of the invention.FIG. 1 schematically illustrates with a top view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 2 schematically illustrates with a bottom view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 3 schematically illustrates with a side view the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 4 schematically illustrates with a perspective view an opticallytransparent polymer plate 10, an essential component of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention. - As shown in
FIGS. 1, 2 and 3 , the indicating/alarming apparatus 1 according to the preferred embodiment of the invention includes an opticallytransparent polymer plate 10, a light-shielding layer 12, aflexible circuit board 14, a plurality of light-emittingdevices 16 and a light-reflectinglayer 18. - As shown in
FIG. 4 , the opticallytransparent polymer plate 10 has anupper surface 100, alower surface 101 opposite to theupper surface 100, atop side surface 102, abottom side surface 103 opposite to thetop side surface 102, afirst edge surface 104, asecond edge surface 105 opposite to thefirst edge surface 104, and anopening 106 formed on thelower surface 101. Theopening 106 is adjacent to thetop side surface 102, and has alight incident face 107. - In one embodiment, the optically
transparent polymer plate 10 can be formed of polymethylmethacrylate (PMMA), silicone, polycarbonate (PC), thermoplastic polyurethane (TPU), polystyrene (PS), MMA Styrene copolymer (MS), or other commercial light-guiding polymers. The thickness of the opticallytransparent polymer plate 10 can be determined as needed, and is not particularly limited. - As shown in
FIG. 3 , the light-shielding layer 12 is formed to overlay theupper surface 100 of the opticallytransparent polymer plate 10. The plurality of light-emittingdevices 16 are soldered on theflexible circuit board 14. Theflexible circuit board 14 is mounted on thelower surface 101 of the opticallytransparent polymer plate 10 such that the plurality of light-emittingdevices 16 are disposed within anopening 106 formed on thelower surface 101 of the opticallytransparent polymer plate 10. Each light-emittingdevice 16 emits a light entering from thelight incident face 107 of theopening 106 into the opticallytransparent polymer plate 10 which guides the light to exit from thetop side surface 102, thebottom side surface 103, thefirst edge surface 104 and thesecond edge surface 105. The light-shielding layer 12 blocks the light from exiting from the opticallytransparent polymer plate 10. - The light-reflecting
layer 18 is formed to overlay thelower surface 101 of the opticallytransparent polymer plate 10, and is for reflecting the light incident to the light-reflectinglayer 18. In the example shown inFIG. 2 , theflexible circuit board 14 is mounted on light-reflectinglayer 18. In another example, theflexible circuit board 14 is previously mounted on thelower surface 101 of the opticallytransparent polymer plate 10, and then the light-reflectinglayer 18 overlays theflexible circuit board 14. - In one embodiment, the light-
shielding layer 12 can be formed of a dark ink layer, a leather layer, a wood layer, a first metal layer, a first polymer layer and so on. - In one embodiment, the light-reflecting
layer 18 can be formed of a light ink layer, a second metal layer, a second polymer layer and so on. - In one embodiment, each the light-emitting
device 16 can be a semiconductor light-emitting diode device or an organic light-emitting diode device. - Referring to
FIGS. 5 and 6 , those drawings schematically illustrate a modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 5 schematically illustrates with a top view the modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 6 schematically illustrates with a side view the modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention. - As shown in
FIGS. 5 and 6 , theupper surface 100 of the opticallytransparent polymer plate 10 thereon defines a first light-exitingregion 108. The light-shielding layer 12 overlays theupper surface 100 other than the first light-exitingregion 108 of the opticallytransparent polymer plate 10. The light is guided by the opticallytransparent polymer plate 10 to also exit from the first light-exitingregion 108. The components and devices inFIGS. 5 and 6 identical to those shown inFIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein. - Also as shown in
FIGS. 5 and 6 , in one embodiment, the first light-exitingregion 108 extends along thefirst edge surface 104, thebottom side surface 103 and thesecond edge surface 105 of the opticallytransparent polymer plate 10. - Referring to
FIGS. 7 and 8 , those drawings schematically illustrate another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 7 schematically illustrates with a bottom view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 8 schematically illustrates with a side view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention. - As shown in
FIGS. 7 and 8 , thelower surface 101 of the opticallytransparent polymer plate 10 thereon defines a second light-exitingregion 109. The light-reflectinglayer 18 overlays thelower surface 101 other than the second light-exitingregion 109 of the opticallytransparent polymer plate 10. The light is guided by the opticallytransparent polymer plate 10 to also exit from the second light-exitingregion 109. The components and devices inFIGS. 7 and 8 identical to those shown inFIGS. 2 and 3 are given the same numerical notations, and will be not described in detail herein. - Also as shown in
FIGS. 7 and 8 , in one embodiment, the second light-exitingregion 109 extends along thefirst edge surface 104, thebottom side surface 103 and thesecond edge surface 105 of the opticallytransparent polymer plate 10. In the example shown inFIG. 8 , the first light-exitingregion 108 also extends along thefirst edge surface 104, thebottom side surface 103 and thesecond edge surface 105 of the opticallytransparent polymer plate 10. - In one embodiment, the first light-exiting
region 108 and the second light-exitingregion 109 can be formed by a CNC processing machine, an engraving machine, a laser processing machine or other processing equipment. - Referring to
FIG. 9 ,FIG. 9 is a side view regarding thebottom side surface 103 of another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention. - As shown in
FIG. 9 , in one embodiment, thefirst edge surface 104, thebottom side surface 103 and thesecond edge surface 105 of the opticallytransparent polymer plate 10 respectively form a curved surface. By the viewing angle presented inFIG. 9 , thefirst side surface 104 and thesecond side surface 105 both are curved surfaces such that the angle of light emission is wider. The components and devices inFIG. 9 identical to those shown inFIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein. - The indicating/
alarming apparatus 1 according to the preferred embodiment of the invention has flexibility, and the light exits at a wide angle from the side surfaces of the indicating/alarming apparatus 1. Therefore, the indicating/alarming apparatus 1 of the invention can be fixed to a vehicle (for example, a bicycle) for alarming purposes. The indicating/alarming apparatus 1 of the invention can also be used as an indication for advertising signs and the like. - Referring to
FIGS. 10 and 11 , those drawings schematically illustrate another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 10 schematically illustrates with a top view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention.FIG. 11 is a cross sectional view of the indicating/alarming apparatus 1 taken along the A-A line ofFIG. 10 . - As shown in
FIGS. 10 and 11 , the first light-exitingregion 108 corresponds to a pattern. Distinguishable from the prior arts, the indicating/alarming apparatus 1 according to the invention is modified to exhibit the pattern by the light-exitingregion 108 to enhance the contrast between the pattern and other region. The indication/warning device 1 as shown inFIGS. 10 and 11 is advantageous for indication purposes. - The optically
transparent polymer plate 10 has a plurality ofrecesses 11 corresponding to the pattern. Eachrecess 11 has a respective depth. The depths of therecesses 11 adjacent to thebottom side surface 103 of the opticallytransparent polymer plate 10 are deeper than those of therecesses 11 depart from thebottom side surface 103 of the opticallytransparent polymer plate 10. The difference in the depth of therecesses 11 is to control the amount of light exiting to make light exiting regarding each glyph or pattern uniform. By varying the depths of the plurality ofrecess 11, the illumination is controlled to be uniform at different locations in the particular pattern, and thereby the identifiability of the pattern can be enhanced. The components and devices inFIGS. 10 and 11 identical to those shown inFIGS. 1 and 3 are given the same numerical notations, and will be not described in detail herein. - Referring to
FIG. 12 ,FIG. 12 schematically illustrates with a side view another modification of the indicating/alarming apparatus 1 according to the preferred embodiment of the invention. - As shown in
FIG. 12 , further, the indicating/alarming apparatus 1 according to the invention also includes a plurality of colored translucent layers 13. The first light-exitingregion 108 corresponds to a pattern. The opticallytransparent polymer plate 10 has plurality ofrecesses 11 corresponding to the pattern. The function of the plurality ofrecesses 11 is to destroy the total reflection of theupper surface 100 of the opticallytransparent polymer plate 10 to allow light to exit, and the overall appearance of the plurality ofrecesses 11 can present patterns and characters. Each coloredtranslucent layer 13 corresponds to one of therecesses 11 and is filled in thecorresponding recess 11. When the light passes through one of the coloredtranslucent layers 13, the light is changed into a color light corresponding to said one coloredtranslucent layer 13. Thereby, the specific pattern can emit a color light different from the original light according to the design, or emit a colorful color light. In one embodiment, the coloredtranslucent layer 13 can be formed by doping the correspondingdepressions 11 by doping a polymer colloid (for example, silicone) with wavelength-converting particles such as toner, phosphor powder or quantum dots, filing the doped polymer colloid in thecorresponding recess 11, and then curing the doped polymer colloid in thecorresponding recess 11. - With the example and explanations above, the features and spirits of the invention will be hopefully well described. Those skilled in the art will readily observe that numerous modifications and alterations of the device may be made while retaining the teaching of the invention. Accordingly, the above disclosure should be construed as limited only by the metes and bounds of the appended claims.
Claims (10)
1. An indicating/alarming apparatus, comprising:
an optically transparent polymer plate, having an upper surface, a lower surface opposite to the upper surface, a top side surface, a bottom side surface opposite to the top side surface, a first edge surface, a second edge surface opposite to the first edge surface, and an opening formed on the lower surface, the opening being adjacent to the top side surface and having a light incident face;
a light-shielding layer, formed to overlay the upper surface of the optically transparent polymer plate;
a flexible circuit board;
a plurality of light-emitting devices, soldered on the flexible circuit board, wherein the flexible circuit board is mounted on the lower surface of the optically transparent polymer plate such that the plurality of light-emitting devices are disposed within the opening of the optically transparent polymer plate, each light-emitting device emits a light entering from the light incident face of the opening into the optically transparent polymer plate which guides the light to exit from the top side surface, the bottom side surface, the first edge surface and the second edge surface, the light-shielding layer blocks the light from exiting from the optically transparent polymer plate; and
a light-reflecting layer, being formed to overlay the lower surface of the optically transparent polymer plate and being for reflecting the light incident to the light-reflecting layer.
2. The indicating/alarming apparatus of claim 1 , wherein the upper surface of the optically transparent polymer plate thereon defines a first light-exiting region, the light-shielding layer overlays the upper surface other than the first light-exiting region of the optically transparent polymer plate, the light is guided by the optically transparent polymer plate to also exit from the first light-exiting region.
3. The indicating/alarming apparatus of claim 2 , wherein the lower surface of the optically transparent polymer plate thereon defines a second light-exiting region, the light-reflecting layer overlays the lower surface other than the second light-exiting region of the optically transparent polymer plate, the light is guided by the optically transparent polymer plate to also exit from the second light-exiting region.
4. The indicating/alarming apparatus of claim 3 , wherein the first light-exiting region and the second light-exiting region respectively extend along the first edge surface, the bottom side surface and the second edge surface.
5. The indicating/alarming apparatus of claim 4 , wherein the first edge surface, the bottom side surface and the second edge surface respectively form a curved surface.
6. The indicating/alarming apparatus of claim 2 , wherein the first light-exiting region corresponds to a pattern, the optically transparent polymer plate has a plurality of recesses corresponding to the pattern, each recess has a respective depth, the depths of the recesses adjacent to the bottom side surface are deeper than those of the recesses depart from the bottom side surface.
7. The indicating/alarming apparatus of claim 1 , wherein the light-shielding layer is formed of one selected from the group consisting of a dark ink layer, a leather layer, a wood layer, a first metal layer and a first polymer layer.
8. The indicating/alarming apparatus of claim 1 , wherein the light-reflecting layer is formed of one selected from the group consisting of a light ink layer, a second metal layer and a second polymer layer.
9. The indicating/alarming apparatus of claim 2 , wherein each the light-emitting device is a semiconductor light-emitting diode device or an organic light-emitting diode device.
10. The indicating/alarming apparatus of claim 2 , further comprising a plurality of colored translucent layers, wherein the first light-exiting region corresponds to a pattern, the optically transparent polymer plate has plurality of recesses corresponding to the pattern, each colored translucent layer corresponds to one of the recesses and is filled in the corresponding recess, when the light passes through one of the colored translucent layers, the light is changed into a color light corresponding to said one colored translucent layer.
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CN109449274A (en) * | 2018-12-14 | 2019-03-08 | 佛山市国星光电股份有限公司 | A kind of LED component and its manufacturing method |
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JP3379043B2 (en) * | 1998-06-29 | 2003-02-17 | ミネベア株式会社 | Planar lighting device |
JP3787753B2 (en) * | 1999-12-28 | 2006-06-21 | ミネベア株式会社 | Surface lighting device |
TW488541U (en) * | 2001-02-02 | 2002-05-21 | Jian-Feng Lin | Indication lamp structure of exit direction and emergency exit direction |
CN102597605B (en) * | 2009-11-09 | 2016-02-10 | 三菱电机株式会社 | Surface light source apparatus and use its display unit |
JP5337882B2 (en) * | 2009-11-10 | 2013-11-06 | シャープ株式会社 | Lighting device, display device, and television receiver |
TW201128582A (en) * | 2010-02-12 | 2011-08-16 | Unistar Opto Corp | Emergency exit light |
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DE102012002767A1 (en) * | 2012-02-11 | 2013-08-14 | Euchner Gmbh + Co. Kg | Device for monitoring the state of a device |
US10030846B2 (en) * | 2012-02-14 | 2018-07-24 | Svv Technology Innovations, Inc. | Face-lit waveguide illumination systems |
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WO2017007933A1 (en) * | 2015-07-08 | 2017-01-12 | Performance Indicator, Llc | Led panel lighting system |
US9786136B2 (en) * | 2015-11-13 | 2017-10-10 | Alson Technology Limited | Electronic device and dynamic random access memory thereof |
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