EP1505560A2 - Lichtleiterbauteil für optische Mehrsegmentsanzeigen - Google Patents
Lichtleiterbauteil für optische Mehrsegmentsanzeigen Download PDFInfo
- Publication number
- EP1505560A2 EP1505560A2 EP04015509A EP04015509A EP1505560A2 EP 1505560 A2 EP1505560 A2 EP 1505560A2 EP 04015509 A EP04015509 A EP 04015509A EP 04015509 A EP04015509 A EP 04015509A EP 1505560 A2 EP1505560 A2 EP 1505560A2
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- European Patent Office
- Prior art keywords
- optical fiber
- light
- optical
- component according
- mask
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Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
- G09F9/3023—Segmented electronic displays
Definitions
- the present invention relates to an optical fiber device having a light entrance side and a Light exit side for multi-segment optical displays, comprising a mask in which Each segment is guided by a light guide in the form of the segment, using 2K injection molding technology is manufactured, and a corresponding optical assembly, which is for a multi-segment display is set up a home appliance with such an optical assembly and a method for manufacturing the optical fiber device in 2K injection molding.
- From DE 101 12 640 C1 is a display device for household appliances with adosSegmenten known in the juxtaposed light guide in the form of light fingers pass through guide channels in guide bodies.
- the display device is composed along the Lichtleitweges of several guide bodies, wherein the juxtaposed light fingers due to production by a photoconductive plate are connected. This has the disadvantage of having this connection Light is coupled into neighboring segments, causing light disturbances in the individual Segments arise that degrade the display quality. That's why it's necessary Cover the display area with a contour shutter to avoid the light interference cover and thus achieve sharper contours.
- AEG is a light guide component for optical Multi-segment displays known, consisting of two plastic components (2K) in 2K injection molding is made. It is first made of a first plastic component made a mask, then injected into the second plastic component as a light guide becomes.
- the material selection is subject to the condition that the mask during injection of the optical fiber material may not deform significantly to the light guiding property of the light guide does not deteriorate.
- the known optical fiber component has a Mask made of glass fiber filled polyamide and a light guide made of polymethylmethacrylate on. The disadvantage of this combination of materials that the light guide with the Mask connects at least partially adhesive, whereby the light-guiding property of the light guide and thus the display quality is reduced.
- the invention has the object of providing a cost-effective optical fiber component for optical Multi-segment displays to provide, with the installation depth of the circuit board designed variably behind a display surface with simultaneously high display quality can be.
- a light guide component of the type mentioned characterized that between the mask and the light guide throughout an air gap, in particular is formed in the micrometer range. Through this air gap, light that is in propagates the optical fiber, totally reflected at the interface to the air gap, whereby the Light continues to be guided in the light guide and is not absorbed by the mask material. To this It is possible to keep the light losses low for light guides of great length, so that on the display surface, a high luminance and thus a high display quality is reached.
- the mask material a light-tight, easy-flowing material with a low volume shrinkage during the cooling process is.
- the mask material is a liquid crystalline polymer (LCP), such as Vectra. Due to the processing properties of this mask material is a production of long and filigree masks possible.
- LCP liquid crystalline polymer
- Fiber optic components can be manufactured with a large length, so that at large Mounting depths of the circuit board behind a display area, the light using the light guide component can be led to the display surface, creating a high quality display is achieved.
- the optical fiber component realized in this mask material a small width of the individual segments and thus in addition to an improved visual appearance of the multi-segment display also a high display quality can be achieved.
- the optical waveguide material a transparent amorphous plastic, in particular polymethyl methacrylate (PMMA) is.
- PMMA polymethyl methacrylate
- This optical fiber material has the advantage that it with the mask material LCP no Connects and shrinks strongly when cooled.
- the finished sprayed fiber optic device between a continuous air gap Forming light guide and mask. That the air gap is due to a higher volume shrinkage of the optical fiber material relative to the mask material during the cooling process formed and is thus largely independent of the manufacturing process, resulting in a high process reliability leads.
- PMMA has the advantage that it has a much lower melting point than the mask material LCP has.
- the mask material are adapted such that a melting of the mask material upon injection of the optical fiber material into the forming mask to a minimum is reduced.
- This has the advantage that the light guide exactly in the predetermined by the mask Optical fiber geometry is formed, since the optical fiber material, the mask material during the manufacturing process does not melt and thus deformed, creating a high Quality of the light pipe and thus a high display quality can be achieved.
- the process for manufacturing the optical fiber component in 2K injection molding the optical fiber material via a ground pad at the light exit side in the mask injected in this way, it is possible closely adjacent segments with Fill fiber optic material.
- this has indirect injection of the optical fiber material in the segment of the mask has the advantage that the light guide streaks and made bubble-free and thus a high quality of the light guide can be achieved.
- a photoconductive plate forms the light guide material on the light exit side of the Lichtleiterbauteils a photoconductive plate, with the particular light guide each Segments is connected.
- the photoconductive plate can be manufactured in such a way that it has a rough and / or a textured surface. Through the rough surface the leaking light is scattered so that the light distribution of each segment becomes even. Due to the structured surface, the structure of each Segments are highlighted, which makes the display even from oblique angles is clearly visible.
- At least one injection point of the optical waveguide material is between the Segments arranged.
- the Lichtleitmaterial evenly in the individual segments are injected.
- Another advantage is that the injection point the light emission from the individual segments does not bother, creating a homogeneous Light distribution for each segment can be achieved.
- the photoconductive plate protrudes laterally over the mask.
- the shape of the plate adapted to a panel.
- locking elements for fastening the optical fiber component are on the plate formed on a housing part and / or on a diaphragm part, so that a optical assembly, which is set up with the optical fiber component for a multi-segment display is, by means of these locking elements of the optical fiber component to the housing or on the aperture can be locked, for example, a household appliance. In this way is an assembly of the optical fiber component and thus the optical assembly on special easy way possible.
- the optical fiber is polished at the light entrance side. This way a can Scattering of the incoming light can be reduced, producing more light in the light guide arrives. This has the advantage that even with long light guides a display with high Luminance can be achieved.
- the optical fiber component at the Light entry side for each segment a recess for enclosing a light-emitting Component, in particular for enclosing a SMD LED has.
- a recess for enclosing a light-emitting Component in particular for enclosing a SMD LED has.
- this way may be in an optical assembly that contains SMD LEDs and in which such a fiber optic device is used, on the one hand a lot of light in the respective light guide
- a coupling of the light in the light guide of another Segments are avoided. This has the advantage that for each segment only the light the associated light-emitting component passes into the light guide, whereby a particularly good optical separation of the individual segments is achieved from each other.
- a Particularly good coupling of the light from the SMD LED into the light guide can thereby be achieved that the recess of the optical fiber component containing the SMD LED, filled with a transparent potting compound and / or with diffuser material. On in this way the number of optical transitions is reduced and thus the light loss minimized.
- the light may be from the light source due to the scattering in the diffuser material particularly evenly distributed in the light guide of the respective segment are coupled.
- the mask is cuboid and has locking elements for attachment the optical waveguide component on a printed circuit board and / or on a housing part, in particular on the light entry side.
- the optical fiber device can be particularly simple be mounted on the circuit board.
- the Optical fiber component at the light entry side are locked with an electronic circuit board on the SMD LEDs are arranged.
- each one Locking element arranged so that it starts from one to the assigned, in parallel directed to the light guides cuboid edge is directed freely movable on the circuit board, and the two remaining, parallel to the light guides edges each have a linear, formed in a negative mold to the locking element recess on, which can be positively connected with the latching element of an adjacent light guide component is.
- the optical fiber material and / or the mask material is colored in itself.
- the optical fiber component in a Household appliance of the light guide and / or the mask according to the housing or the Aperture is colored in itself. This has the advantage that the optical fiber component and thus the optical assembly with the optical fiber component optically to the housing or the aperture can be adjusted so that only the display on the display surface visible is.
- optical fiber device is preferably used in optical assemblies that are suitable for multi-segment displays, especially for 7-segment displays.
- Such assemblies are used as display devices in the housing or the Panel of household appliances used, as in this way modifications of the housing or Blend designs are feasible without the circuit board or the electronics must be changed.
- an optical fiber device 1 for a optical 7-segment display with decimal point shown schematically.
- the fiber optic device 1 consists of a cuboid base body 2, which has a mask M with parallel Channels K, wherein the mask M in cross section of a 7-segment display with Decimal point corresponds.
- the channels K of the main body 2 is for each of the seven Segments of the 7-segment display depending on a light guide 3 with a segment-shaped cross-sectional area and for the decimal point, a light guide 4 having a circular cross-sectional area from a light entrance side 5 to one of the light entrance side 5 opposite Light exit side 6 out.
- the light guides 3, 4 open in a photoconductive plate 7, which is arranged on the base body 2 and a planar Surface 8 has.
- the light guides 3, 4 are shown in FIG. 1 by dashed lines, since they are under the light-conducting plate 7.
- Each of the segmental light guides 3 has a width B and the circular light guide 4 has a diameter D, both especially less than or equal to one millimeter.
- the individual segmental Light guides 3 are separated from each other by webs S of the mask M of the Light entrance side 5 is separated up to the light exit side 6.
- each latching element 11 is arranged such that, starting from one at the associated, Parallel to the light guides 3, 4 lying cuboid edge 10 on the light entrance side 5 of the optical fiber component 1 protrudes and is free to move.
- the base body 2 At the two remaining, to the light guides 3, 4 parallel edges 12, the base body 2 each one line-shaped recess 13 which is formed positively to the locking elements 11 is.
- the curvature 14 of the locking elements 11 corresponds in its negative shape of the curvature 15 of the recesses 13.
- the light guide component 1 can thus another identical Fiber optic component 1 are arranged without gaps (not shown), since the locking element 11 positively fits into the recess 13.
- FIG. 3 shows a section along the light guides 3, 4 through an optical assembly 16, which is set up for the optical 7-segment display.
- the optical assembly 16 includes the optical fiber device 1 and a printed circuit board 17 with SMD LEDs 18 as light-emitting Components.
- the light guide component 1 is with its locking elements 11 in holes 19 of Printed circuit board 17 locked.
- the SMD LEDs 18 are from the recesses 9 of the optical fiber device 1, so that emitted by the SMD LEDs light only in through Arrows marked direction along the light guide 3, 4 can propagate.
- An overcoupling of Light of the SMD LED in adjacent light guide 3, 4 is avoided by that on the Light entry side 5, the optical fiber component 1 between the recesses 9 positively with the circuit board 17 closes.
- These recesses 9 can be used in particular of SMD LED chips 18 without LED housing with a transparent potting compound filled on the one hand protects the SMD LED chips 18 from damage and on the other hand improves the light coupling of the emitted light in the light guide 3, 4, because the number of optical transitions is reduced and the transparent potting compound can be chosen such that their optical refractive index to that of the optical waveguide 3, 4th is adjusted.
- the recesses 9 can also be filled with diffuser material, by which light emitted from the SMD LEDs is scattered, so that the light with a uniform distribution in the light guides 3, 4 occurs. In general, others can light-emitting components are used, such as LEDs or incandescent lamps, the dimensions of the optical fiber component can be adjusted accordingly.
- an air gap 20 is formed, in particular of an order of magnitude of micrometers.
- the photoconductive plate 7 shows a structured surface 21 in FIG. 3, in which the individual segments 22 of the 7-segment display are highlighted in plastic. The light leaves the individual segments 22 at the light exit side 6 thus at different angles to the longitudinal direction the light guide 3, 4, whereby it is well visible even at these angles.
- FIG. 4 schematically shows a section along the optical waveguide 3 through a diaphragm part 23 an optical assembly 16, which according to another embodiment the invention is adapted for a multi-segment optical display.
- the light-conducting Plate 7 extends in its planar extension beyond the base body 2 and has a curved shape, which is adapted to the curvature of the diaphragm part 23.
- the Outer contour can, as shown, a rectangular shape or any other desired shape exhibit.
- 7 locking elements 24 are integrally formed on the photoconductive plate formed, which are bounded at the light exit side 6 of the plate 7 and parallel to Point light guide component 1 to the light entry side 5.
- At the diaphragm part 23 are counter-locking elements 25 formed with which the locking elements 25 for mounting the optical Assembly 16 are latched to the panel part 23.
- the optical fiber component 1 is made in 2K injection molding of two plastic components (2K) made.
- the base body 2 with the mask M is made of an opaque, easy-flowing material with a low volume shrinkage during the cooling process made according to the invention, a liquid crystalline polymer (LCP), such. Vectra® is. Due to the processing properties of this liquid crystalline polymer is the production of long and filigree masks M possible.
- a transparent amorphous plastic in particular polymethyl methacrylate (PMMA) is.
- the PMMA has a lower melting point than LCP, allowing the temperature of the PMMA melt during the manufacturing process can be chosen so that the mask M If possible, do not melt when injecting the PMMA.
- the PMMA is over a mass cushion P injected at the light exit side 6 in the mask M, which is the photoconductive Plate 7 forms.
- Figure 1 are centrally between the individual light guides 3 two injection points A shown in dotted lines through which the ground pad P filled with PMMA becomes. Starting from this mass cushion P PMMA is in channels K of the mask M pressed.
- a volume shrinkage occurs on. This is at an LCP, such as Vectra® very low, while the Volume shrinkage of PMMA in the order of 0.6%.
- the volume shrinkage of the optical fiber material relative to the mask material during the cooling process significantly higher, resulting in a over the entire length L of the light guide 3, 4 continuous air gap 20 between light guide 3, 4 and mask M is formed.
- the formation of the air gap 20 is largely of the manufacturing process independent, resulting in a high process reliability for the production of optical fiber components 1 results.
- the optical fiber component 1 with a ratio of length L to width B or diameter D of the optical fibers 3, 4 are made, which is greater than 13 or in of the order of 30 lies.
- the width B or the diameter D the light guide 3, 4 is less than or equal to 1 millimeter and the length L of the light guides is 35 millimeters be.
- a digit height of the 7-segment display of 10 millimeters realized with a segment width of 1 millimeter and a fiber optic length of 35 millimeters become.
- other dimensions of the optical waveguide component 1 are also possible.
- the plastic for forming the light guides 3, 4 or the light-conducting Plate 7 and / or the plastic to form the body 2 dyed in it be.
- the light guides 3, 4 and the photoconductive plate 7 in color be adapted to the diaphragm part 23 or to a housing part such that segments of the Multi-segment display only visible when illuminated.
- the light-emitting Components are chosen such that they emit colored light, so that a contrast in color between illuminated and unlit segments of the Multi-segment display results.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Optical Couplings Of Light Guides (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
Description
- Fig.1
- eine schematische perspektivische Ansicht auf die Lichtaustrittseite eines Lichtleiterbauteils für eine optische 7-Segmentanzeige mit Dezimalpunkt,
- Fig.2
- eine schematische perspektivische Ansicht auf die Lichteintrittseite des Lichtleiterbauteils gemäß Figur 1,
- Fig.3
- einen Längsschnitt entlang einem Lichtleiter durch eine optische Baugruppe, die für eine optische 7-Segmentanzeige eingerichtet ist, und
- Fig.4
- einen Längsschnitt entlang einem Lichtleiter einer optischen Baugruppe für eine optische Mehrsegmentanzeige mit einem Blendenteil an der Lichtaustrittseite.
Claims (36)
- Lichtleiterbauteil mit einer Lichteintrittseite (5) und einer Lichtaustrittseite (6) für optische Mehrsegmentanzeigen, das eine Maske (M) aufweist, in der für jedes Segment ein Lichtleiter (3, 4) mit einem Querschnitt in Form des Segments geführt ist, und das in 2K-Spritzgußtechnik gefertigt ist, dadurch gekennzeichnet, dass zwischen der Maske (M) und dem Lichtleiter (3, 4) durchgängig ein Luftspalt (20) ausgebildet ist.
- Lichtleiterbauteil nach Anspruch 1, dadurch gekennzeichnet, dass der Luftspalt (20) eine Ausdehnung im Mikrometerbereich aufweist.
- Lichtleiterbauteil nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Luftspalt (20) durch einen höheren Volumenschwund des Lichtleitermaterials gegenüber dem Maskenmaterial beim Abkühlungsprozess gebildet ist.
- Lichtleiterbauteil nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass das Maskenmaterial und das Lichtleitermaterial sich beim Fertigungsprozess nicht miteinander verbinden.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtleitermaterial das Maskenmaterial beim Fertigungsprozess nicht anschmilzt.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Maskenmaterial ein lichtdichtes, leichtfließendes Material mit einem beim Abkühlungsprozess geringem Volumenschwund ist.
- Lichtleiterbauteil nach Anspruch 6, dadurch gekennzeichnet, dass das Maskenmaterial ein flüssigkristallines Polymer ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtleitermaterial ein durchsichtig amorpher Kunststoff ist.
- Lichtleiterbauteil nach Anspruch 8, dadurch gekennzeichnet, dass das Lichtleitermaterial ein Polymethylmethacrylat ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Verhältnis aus Länge (L) zu Breite (B) oder Durchmesser (D) des Lichtleiters (3, 4) größer als 13 ist oder in der Größenordnung von 30 liegt.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Breite (B) oder der Durchmesser (D) des Lichtleiters (3, 4) höchstens 1 mm und/oder die Länge (L) des Lichtleiters (3, 4) 35 mm ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtleitermaterial auf der Lichtaustrittseite (6) eine lichtleitende Platte (7) bildet.
- Lichtleiterbauteil nach Anspruch 12, dadurch gekennzeichnet, dass der Lichtleiter (3, 4) jedes Segments mit der Platte (7) verbunden ist.
- Lichtleiterbauteil nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass die Platte (7) eine rauhe und/oder eine strukturierte Oberfläche (8, 21) aufweist.
- Lichtleiterbauteil nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass die Platte (7) seitlich über die Maske (2, M) hinausragt.
- Lichtleiterbauteil nach einem der Ansprüche 12 bis 15, dadurch gekennzeichnet, dass die Platte (7) zylindrisch oder sphärisch gewölbt ist.
- Lichtleiterbauteil nach Anspruch 16, dadurch gekennzeichnet, dass die Form der Platte (7) an eine Blende (23) angepasst ist.
- Lichtleiterbauteil nach einem der Ansprüche 12 bis 17, dadurch gekennzeichnet, dass an der Platte (7) Rastelemente (24) zur Befestigung des Lichtleiterbauteils (1) an einem Gehäuseteil und/oder an einem Blendenteil (23) ausgebildet sind.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Lichtleiter (3, 4) an der Lichteintrittseite (5) poliert ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtleiterbauteil (1) an der Lichteintrittseite (5) für jedes Segment eine Aussparung (9) zur Umfassung eines lichtemittierenden Bauteils (18) aufweist.
- Lichtleiterbauteil nach Anspruch 20, dadurch gekennzeichnet, dass die Aussparung (9) zur Umfassung einer SMD-LED (18) ausgebildet ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Maske (2, M) quaderförmig ist und Rastelemente (11) zur Befestigung des Lichtleiterbauteils (1) an einer Leiterplatte (17) und/oder an einem Gehäuseteil aufweist.
- Lichtleiterbauteil nach Anspruch 22, dadurch gekennzeichnet, dass die Rastelemente (11) an der Lichteintrittseite (5) angeordnet sind.
- Lichtleiterbauteil nach Anspruch 22 oder 23, dadurch gekennzeichnet, dass an zwei diagonal einander gegenüberliegenden Ecken einer der Lichteintrittseite (5) zugeordneten Quaderfläche je ein Rastelement (11) so angeordnet ist, dass es ausgehend von einer an der zugeordneten, parallel zu den Lichtleitern (3, 4) liegenden Quaderkante (10) frei beweglich auf die Leiterplatte (17) gerichtet ist, und dass die beiden verbleibenden, zu den Lichtleitern (3, 4) parallel liegenden Kanten (12) je eine linienförmige, in einer Negativform zu dem Rastelement (11) ausgebildete Aussparung (13) aufweisen, die mit dem Rastelement (11) eines benachbarten Lichtleiterbauteils (1) formschlüssig zusammenfügbar ist.
- Lichtleiterbauteil nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Lichtleitermaterial und/oder das Maskenmaterial in sich gefärbt ist.
- Optische Baugruppe mit einem Lichtleiterbauteil nach einem der Ansprüche 1 bis 25, die für eine Mehrsegmentanzeige eingerichtet ist.
- Optische Baugruppe nach Anspruch 26, dadurch gekennzeichnet, dass die Mehrsegmentanzeige eine 7-Segmentanzeige ist.
- Optische Baugruppe nach Anspruch 26 oder 27, dadurch gekennzeichnet, dass sie SMD-LEDs (18) enthält.
- Optische Baugruppe nach Anspruch 28, dadurch gekennzeichnet, dass die Aussparung (9) des Lichtleiterbauteils (1), die die SMD-LED (18) umfasst, mit einer transparenten Vergussmasse und/oder mit Diffusormaterial ausgefüllt ist.
- Optische Baugruppe nach Anspruch 28 oder 29, dadurch gekennzeichnet, dass das Lichtleiterbauteil (1) an der Lichteintrittseite (5) mit einer Leiterplatte (17) verrastet ist, auf der die SMD-LEDs (18) angeordnet sind.
- Haushaltgerät, das ein Gehäuse oder eine Blende (23) mit einer optischen Baugruppe (16) nach einem der Ansprüche 26 bis 30 aufweist.
- Haushaltgerät nach Anspruch 31, dadurch gekennzeichnet, dass die Einfärbung der Lichtleiter (3, 4) und/oder der Maske (2, M) an das Gehäuse oder die Blende (23) angepasst ist.
- Haushaltgerät nach Anspruch 31 oder 32, dadurch gekennzeichnet, dass die optische Baugruppe (16) mittels Rastelementen (24) des Lichtleiterbauteils (1) an dem Gehäuse oder an der Blende (23) verrastet ist.
- Verfahren zur Fertigung eines Lichtleiterbauteils nach einem der Ansprüche 1 bis 25 in 2K-Spritzgusstechnik, dadurch gekennzeichnet, dass die Fertigungsparameter an die Schmelztemperatur des Maskenmaterials derart angepasst sind, dass ein Anschmelzen des Maskenmaterials bei Einspritzen des Lichtleitermaterials in die Maske (M) auf ein Minimum reduziert ist.
- Verfahren nach Anspruch 34, dadurch gekennzeichnet, dass das Lichtleitermaterial über ein Massepolster an der Lichtaustrittseite in die Maske (M) eingespritzt wird.
- Verfahren nach Anspruch 35, dadurch gekennzeichnet, dass zumindest ein Anspritzpunkt (A) des Lichtleitermaterials zwischen den Segmenten angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10333316 | 2003-07-22 | ||
DE10333316A DE10333316A1 (de) | 2003-07-22 | 2003-07-22 | Lichtleiterbauteil für optische Mehrsegmentsanzeigen |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1505560A2 true EP1505560A2 (de) | 2005-02-09 |
EP1505560A3 EP1505560A3 (de) | 2005-12-14 |
EP1505560B1 EP1505560B1 (de) | 2012-03-07 |
Family
ID=33547032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04015509A Expired - Lifetime EP1505560B1 (de) | 2003-07-22 | 2004-07-01 | Lichtleiterbauteil für optische Mehrsegmentsanzeigen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1505560B1 (de) |
AT (1) | ATE548722T1 (de) |
DE (1) | DE10333316A1 (de) |
ES (1) | ES2380829T3 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130314642A1 (en) * | 2012-05-23 | 2013-11-28 | Conopco, Inc., D/B/A Unilever | Non-black dead front display |
WO2013174705A1 (en) * | 2012-05-23 | 2013-11-28 | Unilever Plc | Curved dead front display |
WO2016008903A1 (de) * | 2014-07-16 | 2016-01-21 | BSH Hausgeräte GmbH | Anzeigevorrichtung und haushaltsgerät mit einer solchen anzeigevorrichtung |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008061853A1 (de) * | 2008-12-15 | 2010-06-24 | Gigaset Communications Gmbh | Segmentanzeige mit einem Lichtleiter |
DE102010025247A1 (de) * | 2010-06-26 | 2011-12-29 | Diehl Ako Stiftung & Co. Kg | Anzeigeeinrichtung |
FR3019258B1 (fr) | 2014-03-31 | 2019-04-05 | Valeo Vision | Guide de lumiere comportant une surface de sortie recouverte de matiere diffusante |
DE102019202831A1 (de) * | 2019-03-01 | 2020-09-03 | BSH Hausgeräte GmbH | Anzeigemittel mit einer Streufolie |
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US3876900A (en) * | 1972-05-15 | 1975-04-08 | Matsushita Electronics Corp | Electric light-emitting apparatus |
US4058750A (en) * | 1975-09-20 | 1977-11-15 | Licentia Patent-Verwaltungs-G.M.B.H. | Light emitting semiconductor indicating structure with light conductors |
DE10112640C1 (de) * | 2001-03-16 | 2002-12-19 | Diehl Ako Stiftung Gmbh & Co | Anzeigeeinrichtung |
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DE2707081A1 (de) * | 1977-02-18 | 1978-08-24 | Ackeret Design Studios | Optische zahlensegmentanzeige |
DE4130844A1 (de) * | 1991-09-17 | 1993-03-18 | Ronkholz Karl Heinz | Alphanumerische anzeigeeinrichtung |
DE9212999U1 (de) * | 1992-09-26 | 1992-12-03 | Klöckner-Moeller GmbH, 5300 Bonn | Vorrichtung zur Distanzüberbrückung des Lichtes einer Leuchtanzeige, insbesondere für Leuchtdioden... |
JP2894582B2 (ja) * | 1993-12-17 | 1999-05-24 | ローム株式会社 | 発光装置 |
DE29608845U1 (de) * | 1996-05-15 | 1996-11-28 | Siemens AG, 80333 München | Optische Anzeigevorrichtung für ein Kommunikationsendgerät |
JPH10143095A (ja) * | 1996-11-06 | 1998-05-29 | Pfu Ltd | 発光ダイオード表示装置およびその製造方法 |
JPH10254387A (ja) * | 1997-03-10 | 1998-09-25 | Sanyo Electric Co Ltd | セグメント型表示器 |
JP2000075811A (ja) * | 1998-08-27 | 2000-03-14 | Fuji Electric Ind Co Ltd | 表示ユニット |
DE19843836A1 (de) * | 1998-09-24 | 2000-03-30 | Annax Anzeigesysteme Gmbh | Anzeigetafel zur optischen Darstellung zweidimensionaler, gegenüber der Anzeigefläche in einer Richtung im wesentlichen gleichmäßig bewegter Abbildungen |
DE19903587A1 (de) * | 1999-01-29 | 2000-08-03 | Bsh Bosch Siemens Hausgeraete | Optische Anzeigevorrichtung für elektrische Haushaltsgeräte |
WO2002027697A2 (en) * | 2000-09-29 | 2002-04-04 | Ge Fanuc Automation North America, Inc. | Light pipe apparatus |
DE10155126B4 (de) * | 2001-11-09 | 2006-01-19 | Diehl Ako Stiftung & Co. Kg | Optischer Signalgeber, insbesondere in der Bedienblende eines Haushaltsgroßgerätes |
-
2003
- 2003-07-22 DE DE10333316A patent/DE10333316A1/de not_active Ceased
-
2004
- 2004-07-01 EP EP04015509A patent/EP1505560B1/de not_active Expired - Lifetime
- 2004-07-01 ES ES04015509T patent/ES2380829T3/es not_active Expired - Lifetime
- 2004-07-01 AT AT04015509T patent/ATE548722T1/de active
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US3876900A (en) * | 1972-05-15 | 1975-04-08 | Matsushita Electronics Corp | Electric light-emitting apparatus |
US4058750A (en) * | 1975-09-20 | 1977-11-15 | Licentia Patent-Verwaltungs-G.M.B.H. | Light emitting semiconductor indicating structure with light conductors |
DE10112640C1 (de) * | 2001-03-16 | 2002-12-19 | Diehl Ako Stiftung Gmbh & Co | Anzeigeeinrichtung |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130314642A1 (en) * | 2012-05-23 | 2013-11-28 | Conopco, Inc., D/B/A Unilever | Non-black dead front display |
WO2013174715A1 (en) * | 2012-05-23 | 2013-11-28 | Unilever Plc | Non-black dead front display |
WO2013174705A1 (en) * | 2012-05-23 | 2013-11-28 | Unilever Plc | Curved dead front display |
US8967834B2 (en) | 2012-05-23 | 2015-03-03 | Iluminage Beauty, Ltd. | Curved dead front display |
CN104395949A (zh) * | 2012-05-23 | 2015-03-04 | 伊卢米内奇美容有限公司 | 弯曲死正面显示器 |
CN104508732A (zh) * | 2012-05-23 | 2015-04-08 | 伊卢米内奇美容有限公司 | 非黑色死正面显示器 |
WO2016008903A1 (de) * | 2014-07-16 | 2016-01-21 | BSH Hausgeräte GmbH | Anzeigevorrichtung und haushaltsgerät mit einer solchen anzeigevorrichtung |
CN106662702A (zh) * | 2014-07-16 | 2017-05-10 | Bsh家用电器有限公司 | 显示装置和具有这样的显示装置的家用器具 |
RU2676056C2 (ru) * | 2014-07-16 | 2018-12-25 | Бсх Хаусгерете Гмбх | Индикаторное устройство и бытовой прибор с таким индикаторным устройством |
EP3170044B1 (de) * | 2014-07-16 | 2019-11-20 | BSH Hausgeräte GmbH | Anzeigevorrichtung und haushaltsgerät mit einer solchen anzeigevorrichtung |
CN106662702B (zh) * | 2014-07-16 | 2020-04-24 | Bsh家用电器有限公司 | 显示装置和具有这样的显示装置的家用器具 |
Also Published As
Publication number | Publication date |
---|---|
ATE548722T1 (de) | 2012-03-15 |
EP1505560B1 (de) | 2012-03-07 |
EP1505560A3 (de) | 2005-12-14 |
DE10333316A1 (de) | 2005-02-10 |
ES2380829T3 (es) | 2012-05-18 |
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