CA1236440A - Signal lamp with an illumination diode - Google Patents
Signal lamp with an illumination diodeInfo
- Publication number
- CA1236440A CA1236440A CA000441450A CA441450A CA1236440A CA 1236440 A CA1236440 A CA 1236440A CA 000441450 A CA000441450 A CA 000441450A CA 441450 A CA441450 A CA 441450A CA 1236440 A CA1236440 A CA 1236440A
- Authority
- CA
- Canada
- Prior art keywords
- housing
- diode
- arrangement
- carrier plate
- diodes
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/301—Assembling printed circuits with electric components, e.g. with resistor by means of a mounting structure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
- F21W2111/00—Use or application of lighting devices or systems for signalling, marking or indicating, not provided for in codes F21W2102/00 – F21W2107/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10507—Involving several components
- H05K2201/10545—Related components mounted on both sides of the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10598—Means for fastening a component, a casing or a heat sink whereby a pressure is exerted on the component towards the PCB
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10431—Details of mounted components
- H05K2201/10606—Permanent holder for component or auxiliary PCB mounted on a PCB
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Optical Communication System (AREA)
- Led Device Packages (AREA)
Abstract
SIGNAL LAMP WITH LIGHT EMITTING DIODE
ABSTRACT OF THE DISCLOSURE
A signal lamp has a housing with one or more openings for discrete light emitting diodes mounted on a common plate-like carrier which is releasably secured to the housing by several detent members. The carrier is provided with a printed or otherwise applied circuit, and that side thereof which faces away from the diode or diodes is provided with electric terminals for connection of the diode or diodes to a source of electrical energy. The thickness of the signal lamp, as considered in the axial direction of the diode or diodes, is a fraction of the thickness of conventional signal lamps.
This renders the improved signal lamp particularly suitable for use in switchboards, control panels and the like wherein the housing is releasably held by springy detent members. Reduced thickness of the housing is attributed to the feature that the carrier is a plate, that it supports a circuit which occupies a minimum of space, that the terminals are accessible at the rear side of the carrier, and that the plane of the carrier is parallel to the plane or planes of the opening or openings for one or more diodes.
ABSTRACT OF THE DISCLOSURE
A signal lamp has a housing with one or more openings for discrete light emitting diodes mounted on a common plate-like carrier which is releasably secured to the housing by several detent members. The carrier is provided with a printed or otherwise applied circuit, and that side thereof which faces away from the diode or diodes is provided with electric terminals for connection of the diode or diodes to a source of electrical energy. The thickness of the signal lamp, as considered in the axial direction of the diode or diodes, is a fraction of the thickness of conventional signal lamps.
This renders the improved signal lamp particularly suitable for use in switchboards, control panels and the like wherein the housing is releasably held by springy detent members. Reduced thickness of the housing is attributed to the feature that the carrier is a plate, that it supports a circuit which occupies a minimum of space, that the terminals are accessible at the rear side of the carrier, and that the plane of the carrier is parallel to the plane or planes of the opening or openings for one or more diodes.
Description
~39~
BACKGROUND OF THE I~VE~TION
The present invention relates to signal lamps in general, and more particularly to improvements in signal lamps wherein the light source includes o~e or more light emitting diodes.
It is already known to provide a signal lamp with a housing for one or more light emitting diodes. The housing has an opening for each diode. A drawback of presently known signal lamps is that their depth is quite pronounced, normally in the range of several centimeters, which creates problems when such signal lamps must be installed in or on a control panel or switchboard or in a control room or switchboard gallery.
OBJECTS AND SUMMARY OF THE INVENTION
An object of the invention is to provide a signal lamp whose housing is more compact than the housing of a conventional signal lamp even if it receives and supports one or more conventional light emitting diodes.
Another object of the invention is to provide a signal lamp which can be installed in control panels, switchboards and like structures as a superior substitute for heretofore known signal lamps.
Another object of the invention is to provide a novel and improved housing for use in a signal lamp of the above outlined character.
A further object of the invention is to provide a signal lamp which can accommodate several light emitting diodes in a small area and with minimal outlay for electrical connections between and/or for such light emitting diodes.
An additional object of the invention is to provide a novel carrier for one or more light emitting diodes in the improved signal lamp.
Still another object of the invention is to provide a novel and improved device for securing the ., :.
carrier 25 to the housing of the signal lamp.
A further object of the invention is to provide a signal lamp ~hose housing can accept conventional light emitting diodes but with substantial savings in space, especially as concerns the depth of the signal lamp.
Another object of the invention is to provide a signal lamp which can be used in existing control panels and like devices with substantial savings in space, particularly as considered in the direction of propagation of light from the light emitting diode or diodes.
Still another object of the invention is to provide a signal lamp which can contain identical or differently configurated light emit~ting diodes having identical or different light-emitting areas and/or diodes which emit light of the same intensity or of different intensities.
The invention is embodied in a signal lamp which compri~es a housing having at least one opening, a light emitting diode which is installed in the housing so as to emit light through the opening whereby the front side of the diode faces the opening, a substantially plate-like carrier which is supportingly connected with the rear side of the diode, and means for securing the carrier to the housing. The plane of the opening is preferably parallel to the plane of the substantially plate-like carrier. The signal lamp further comprises an elongated series resistor which is connected in circuit with the light emitting diode and is preferably installed in substantial parallelism with the carrier, preferably adjacent to that side of the carrier which faces away from the rear side of the diode, i.e., the carrier i5 preferably disposed between the diode and the resistor. The current-conducting terminal means which serves to connect the diode with a source of electrical energy preferably extends from or is accessible at that side of the carrier which faces away from the rear side of the diode.
~1 ~236~
The housing includes a frame which surrounds the opening and preferably extends outwardly beyond the marginal portions of the carrier. The housing can be separably mounted in a support, such as a control panel or switchboard, by resorting to springy detent means or the liXe. Analogous detent means can be used to constitute the aforementioned securing means which separably connects the carrier to the housing. The diode preferably comprises a light-transmitting casing which at least partially overlies the opening and whose axis preferably coincides with the axis of the opening or with the axis of the housing.
The carrier can constitute a print plate or it may consist at least in part of a synthetic plastic material. Instead of or in addition to a printed circuit, a plastic carrier can carry wire-like and/or stamped conductor means. Still Eurther, the conductor means can be applied to the carrier galvanically or in a simil~r Eashion.
The casing of the diode can have a polygonal (e.g., s~uare or rectangular) shape. Alternatively, the casing of the diode can constitute a cylinder. If the housing has several openings, the signal lamp comprises a discrete light emitting diode for each opening, and all such diodes can be mounted on a common carrier having a side facing away from the diodes and provided with electric terminals for all of the diodes.
The novel features which are considered as characteristic of the invention are set forth in particular in the appended claims. The improved signal lamp itself, however, both as to its construction and the mode of assembling the same, together with additional features and advantages thereof, will be best understood upon perusal of the following detailed description of certain specific embodiments with reference to the accompanying arawing.
_ 5 _ BRIEF DESCRIPTION OF THE DRA~I~G
FIG. 1 is a schematic front elevational view of a signal lamp which employs a single light emitting diode;
FIG. 2 is a sectional view as seen in the direction of arrows from the line II-II of FIG. 1, further showing a portion of a support and the manner in which the housing of the lamp is installed in the support;
FIG. 3 is a rear elevational view of the signal lamp which is shown in FIGS. 1 and 2; and FIG. 4 is a front elevational view of a modified signal lamp with several light emitting diodes.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The signal lamp which is shown in FIGS. 1 to 3 comprises a housing 2 having a rectangular frame with a ~lat rectangular bead 3 surrounding a centrally located square or rectangular opening 1 for a light emitting diode 10 having a light-transmitting casing 10a which overlies the opening 1. The axis of the diode 10 coincides with the axis of the housing 2 and opening 1 therein. The housing 2 further comprises a centering rib 4 which extends rearwardly from the bead 3 and surrounds the lateral sides of the diode 10. The rear side of the diode 10 is adjacent and secured to the front side of a plate-like carrier 9 whose plane is parallel to the plane of the opening 1. The rib 4 constitutes a distancing element for the carrier 9, i.e., it determines the extent to which the diode 10 can be inserted into the space that is surrounded by the rib 4. Two marginal portions of the housing 2 are provided with springy first detent members 5 which can be used to releasably secure the housing 2 in an opening 6 of a support 7, e.g., a control panel or switchboard. The first detent members 5 are disposed opposite each other and the support 7 has suitable notches through which the detent members 5 must pass before they 3S expand to engage the rear side of the support to hold the housing 2 in requisite position.
A
~36440 The housing 2 is further provided with four second detent members 8 which constitute means for separably securing the carrier 9 (and hence the diode 10) to the housing 2. As can be seen in FIG. 3, the detent members 8 are provided at the corners of the plate-like carrier 9. Each second detent member 8 has a detent engaging the rear side of the carrier, namely, the side which faces away from the diode 10. The carrier 9 further serves as a support for a series resistor 11 connected in circuit with the diode 10 and parallel to the plane of the carrier. Still further, the carrier 9 supports terminals I2 connected in circuit with the diode and serving to connect the diode with a suitable source of electrical energy, not shown. It will be noted that the frame 2a of the housing 2 extends outwardly beyond the respective marginal portions of the carrier 9, i.e., the latter i9 fully overla~ped by the casing lOa of the diode 10 and the housing 2.
The centering rib 4 maintains the diode 10 in such position that the axis of the diode coincides with the axis of the opening 1, and the rib 4 cooperates with the carrier 9 to ensure that the front side of the diode is located at a requisite distance behind the front side of the bead 3. The number of detent members 8 can be reduced to less than four or increased to more than four, depending on the desired force with which the diode 10 is to be held in the housing 2. If desired, the series resistor 11 can be mounted at the front side of the carrier 9. In each instance, the thickness of the signal lamp is but a fraction of the thickness of a conventional signal lamp which employs a diode for emission of light having the same intensity and the same light-emitting area as the illustrated diode.
The provision of terminals 12 at the rear side of the carrier 9 facilitates the connection of such terminals to the energy source as well as to conductors which are ~L236~
provided on and/or in the carrier. The carrier 9 can constitute a print plate or it can constitute a plate made of a synthetlc plastic material and obtained by resorting to a stamping, injection molding or other suitable technique. Such plastic plate-like carrier can be provided with stamped conductors and/or with wire-like conductors soldered or welded in requisite positions.
Still further, a plastic plate-like carrier can be provided with conductors in the form of a printed circuit (indicated by a legend) or by the application of suitable metallic conductors by resorting to a galvanizing or other technique.
In the embodiment of FIGS.~l to 3, the light-tran~mitting casing lOa of the diode 10 has a prismatic (dice-like) ~hape which conforms to the outllne of the opening 1 in the frame 2a of the hou~ing 2. As can be seen in FIG. 4, the housing 102 can have several openings (1 and 101) which may but need not have identical outlines. In the embodiments of FIG. 4, one of the openings 1, 101 is substantially square and the other opening is substantially circular to respectively receive a substantially cubical and a substantially cylindrical diode 10, 110.
Both diodes are secured to a common plate-like carrier 109 whose rear side is provided with common terminal~, 112 for both diodes.
An important advantage of the improved signal lamp is its compactness, especially as considered in the axial direction of the diode or diodes.
Another important advantage of the improved signal lamp is that the frame 2 or 102 extends outwardly beyond the marginal portions of the respective carrier 9 or 109. This is desirable because the entire signal lamp can be attached to its support (such as the support 7 of 35 FIGS. 2 and 3) by pushing the housing 2 or 102 toward the front side of the support until the detent members (such ~;~36~
as the detent members 5 of the housing 2) penetrate into the aperture of the support and come into requisite engagement with complementary detent means of the support. Moreover, the di~ensions of the frame preferably exceed the dimensions of the aperture in the support so that such aperture is fully overlapped and covered by the frame in order to enhance the appearance of the support when the latter is connected with one or more housings and the housing or housings fully conceal the apperture or apertures in the support. The placing of detent members 5 at the sides of the housing also contributes to compactness of the improved signal lamp and facilitates the just discussed mounting of the housing by moving it toward the front side of the support. The provision of a casing which fully overlies the respective openings 1 or 101 ensures that the interior of the signal lamp is sealed or practically sealed against penetration of ~ust and/or other foreign matter. As can be seen in FIG. 2, the housing 2 defines an internal shoulder 2b against which the front panel of the casing lOa abuts to prevent penetration of foreign matter into the space which is surrounded by the rib 4.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic and specific aspects o my contribution to the art and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the appended claims.
A
BACKGROUND OF THE I~VE~TION
The present invention relates to signal lamps in general, and more particularly to improvements in signal lamps wherein the light source includes o~e or more light emitting diodes.
It is already known to provide a signal lamp with a housing for one or more light emitting diodes. The housing has an opening for each diode. A drawback of presently known signal lamps is that their depth is quite pronounced, normally in the range of several centimeters, which creates problems when such signal lamps must be installed in or on a control panel or switchboard or in a control room or switchboard gallery.
OBJECTS AND SUMMARY OF THE INVENTION
An object of the invention is to provide a signal lamp whose housing is more compact than the housing of a conventional signal lamp even if it receives and supports one or more conventional light emitting diodes.
Another object of the invention is to provide a signal lamp which can be installed in control panels, switchboards and like structures as a superior substitute for heretofore known signal lamps.
Another object of the invention is to provide a novel and improved housing for use in a signal lamp of the above outlined character.
A further object of the invention is to provide a signal lamp which can accommodate several light emitting diodes in a small area and with minimal outlay for electrical connections between and/or for such light emitting diodes.
An additional object of the invention is to provide a novel carrier for one or more light emitting diodes in the improved signal lamp.
Still another object of the invention is to provide a novel and improved device for securing the ., :.
carrier 25 to the housing of the signal lamp.
A further object of the invention is to provide a signal lamp ~hose housing can accept conventional light emitting diodes but with substantial savings in space, especially as concerns the depth of the signal lamp.
Another object of the invention is to provide a signal lamp which can be used in existing control panels and like devices with substantial savings in space, particularly as considered in the direction of propagation of light from the light emitting diode or diodes.
Still another object of the invention is to provide a signal lamp which can contain identical or differently configurated light emit~ting diodes having identical or different light-emitting areas and/or diodes which emit light of the same intensity or of different intensities.
The invention is embodied in a signal lamp which compri~es a housing having at least one opening, a light emitting diode which is installed in the housing so as to emit light through the opening whereby the front side of the diode faces the opening, a substantially plate-like carrier which is supportingly connected with the rear side of the diode, and means for securing the carrier to the housing. The plane of the opening is preferably parallel to the plane of the substantially plate-like carrier. The signal lamp further comprises an elongated series resistor which is connected in circuit with the light emitting diode and is preferably installed in substantial parallelism with the carrier, preferably adjacent to that side of the carrier which faces away from the rear side of the diode, i.e., the carrier i5 preferably disposed between the diode and the resistor. The current-conducting terminal means which serves to connect the diode with a source of electrical energy preferably extends from or is accessible at that side of the carrier which faces away from the rear side of the diode.
~1 ~236~
The housing includes a frame which surrounds the opening and preferably extends outwardly beyond the marginal portions of the carrier. The housing can be separably mounted in a support, such as a control panel or switchboard, by resorting to springy detent means or the liXe. Analogous detent means can be used to constitute the aforementioned securing means which separably connects the carrier to the housing. The diode preferably comprises a light-transmitting casing which at least partially overlies the opening and whose axis preferably coincides with the axis of the opening or with the axis of the housing.
The carrier can constitute a print plate or it may consist at least in part of a synthetic plastic material. Instead of or in addition to a printed circuit, a plastic carrier can carry wire-like and/or stamped conductor means. Still Eurther, the conductor means can be applied to the carrier galvanically or in a simil~r Eashion.
The casing of the diode can have a polygonal (e.g., s~uare or rectangular) shape. Alternatively, the casing of the diode can constitute a cylinder. If the housing has several openings, the signal lamp comprises a discrete light emitting diode for each opening, and all such diodes can be mounted on a common carrier having a side facing away from the diodes and provided with electric terminals for all of the diodes.
The novel features which are considered as characteristic of the invention are set forth in particular in the appended claims. The improved signal lamp itself, however, both as to its construction and the mode of assembling the same, together with additional features and advantages thereof, will be best understood upon perusal of the following detailed description of certain specific embodiments with reference to the accompanying arawing.
_ 5 _ BRIEF DESCRIPTION OF THE DRA~I~G
FIG. 1 is a schematic front elevational view of a signal lamp which employs a single light emitting diode;
FIG. 2 is a sectional view as seen in the direction of arrows from the line II-II of FIG. 1, further showing a portion of a support and the manner in which the housing of the lamp is installed in the support;
FIG. 3 is a rear elevational view of the signal lamp which is shown in FIGS. 1 and 2; and FIG. 4 is a front elevational view of a modified signal lamp with several light emitting diodes.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
The signal lamp which is shown in FIGS. 1 to 3 comprises a housing 2 having a rectangular frame with a ~lat rectangular bead 3 surrounding a centrally located square or rectangular opening 1 for a light emitting diode 10 having a light-transmitting casing 10a which overlies the opening 1. The axis of the diode 10 coincides with the axis of the housing 2 and opening 1 therein. The housing 2 further comprises a centering rib 4 which extends rearwardly from the bead 3 and surrounds the lateral sides of the diode 10. The rear side of the diode 10 is adjacent and secured to the front side of a plate-like carrier 9 whose plane is parallel to the plane of the opening 1. The rib 4 constitutes a distancing element for the carrier 9, i.e., it determines the extent to which the diode 10 can be inserted into the space that is surrounded by the rib 4. Two marginal portions of the housing 2 are provided with springy first detent members 5 which can be used to releasably secure the housing 2 in an opening 6 of a support 7, e.g., a control panel or switchboard. The first detent members 5 are disposed opposite each other and the support 7 has suitable notches through which the detent members 5 must pass before they 3S expand to engage the rear side of the support to hold the housing 2 in requisite position.
A
~36440 The housing 2 is further provided with four second detent members 8 which constitute means for separably securing the carrier 9 (and hence the diode 10) to the housing 2. As can be seen in FIG. 3, the detent members 8 are provided at the corners of the plate-like carrier 9. Each second detent member 8 has a detent engaging the rear side of the carrier, namely, the side which faces away from the diode 10. The carrier 9 further serves as a support for a series resistor 11 connected in circuit with the diode 10 and parallel to the plane of the carrier. Still further, the carrier 9 supports terminals I2 connected in circuit with the diode and serving to connect the diode with a suitable source of electrical energy, not shown. It will be noted that the frame 2a of the housing 2 extends outwardly beyond the respective marginal portions of the carrier 9, i.e., the latter i9 fully overla~ped by the casing lOa of the diode 10 and the housing 2.
The centering rib 4 maintains the diode 10 in such position that the axis of the diode coincides with the axis of the opening 1, and the rib 4 cooperates with the carrier 9 to ensure that the front side of the diode is located at a requisite distance behind the front side of the bead 3. The number of detent members 8 can be reduced to less than four or increased to more than four, depending on the desired force with which the diode 10 is to be held in the housing 2. If desired, the series resistor 11 can be mounted at the front side of the carrier 9. In each instance, the thickness of the signal lamp is but a fraction of the thickness of a conventional signal lamp which employs a diode for emission of light having the same intensity and the same light-emitting area as the illustrated diode.
The provision of terminals 12 at the rear side of the carrier 9 facilitates the connection of such terminals to the energy source as well as to conductors which are ~L236~
provided on and/or in the carrier. The carrier 9 can constitute a print plate or it can constitute a plate made of a synthetlc plastic material and obtained by resorting to a stamping, injection molding or other suitable technique. Such plastic plate-like carrier can be provided with stamped conductors and/or with wire-like conductors soldered or welded in requisite positions.
Still further, a plastic plate-like carrier can be provided with conductors in the form of a printed circuit (indicated by a legend) or by the application of suitable metallic conductors by resorting to a galvanizing or other technique.
In the embodiment of FIGS.~l to 3, the light-tran~mitting casing lOa of the diode 10 has a prismatic (dice-like) ~hape which conforms to the outllne of the opening 1 in the frame 2a of the hou~ing 2. As can be seen in FIG. 4, the housing 102 can have several openings (1 and 101) which may but need not have identical outlines. In the embodiments of FIG. 4, one of the openings 1, 101 is substantially square and the other opening is substantially circular to respectively receive a substantially cubical and a substantially cylindrical diode 10, 110.
Both diodes are secured to a common plate-like carrier 109 whose rear side is provided with common terminal~, 112 for both diodes.
An important advantage of the improved signal lamp is its compactness, especially as considered in the axial direction of the diode or diodes.
Another important advantage of the improved signal lamp is that the frame 2 or 102 extends outwardly beyond the marginal portions of the respective carrier 9 or 109. This is desirable because the entire signal lamp can be attached to its support (such as the support 7 of 35 FIGS. 2 and 3) by pushing the housing 2 or 102 toward the front side of the support until the detent members (such ~;~36~
as the detent members 5 of the housing 2) penetrate into the aperture of the support and come into requisite engagement with complementary detent means of the support. Moreover, the di~ensions of the frame preferably exceed the dimensions of the aperture in the support so that such aperture is fully overlapped and covered by the frame in order to enhance the appearance of the support when the latter is connected with one or more housings and the housing or housings fully conceal the apperture or apertures in the support. The placing of detent members 5 at the sides of the housing also contributes to compactness of the improved signal lamp and facilitates the just discussed mounting of the housing by moving it toward the front side of the support. The provision of a casing which fully overlies the respective openings 1 or 101 ensures that the interior of the signal lamp is sealed or practically sealed against penetration of ~ust and/or other foreign matter. As can be seen in FIG. 2, the housing 2 defines an internal shoulder 2b against which the front panel of the casing lOa abuts to prevent penetration of foreign matter into the space which is surrounded by the rib 4.
Without further analysis, the foregoing will so fully reveal the gist of the present invention that others can, by applying current knowledge, readily adapt it for various applications without omitting features that, from the standpoint of prior art, fairly constitute essential characteristics of the generic and specific aspects o my contribution to the art and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalence of the appended claims.
A
Claims (12)
1. A signal lamp arrangement comprising, in combination:
(a) a housing provided with at least one opening at one end thereof, (b) a light-emitting diode coincident with each said opening and held in place by a carrier plate disposed at the other end of said housing;
(c) the housing including a front frame surrounding the respective opening, the peripheral contour of said front frame having greater than that of the carrier plate when the two are viewed in the direction of said opening or openings;
(d) centering ribs disposed at a rear surface of the front frame for centering the respective diode relative to the respective opening.
(a) a housing provided with at least one opening at one end thereof, (b) a light-emitting diode coincident with each said opening and held in place by a carrier plate disposed at the other end of said housing;
(c) the housing including a front frame surrounding the respective opening, the peripheral contour of said front frame having greater than that of the carrier plate when the two are viewed in the direction of said opening or openings;
(d) centering ribs disposed at a rear surface of the front frame for centering the respective diode relative to the respective opening.
2. An arrangement of claim 1, comprising a series resistor operatively associated with the respective light emitting diode and having its longitudinal axis parallel to the carrier plate.
3. An arrangement of claim 1, wherein terminals are disposed at that surface of the carrier plate which faces away from the diode or diodes.
4. An arrangement of claim 1, wherein the housing is provided with side-ways engageable resilient detent members for securement of the housing to a switchboard panel, control panel or the like.
5. An arrangement of claim 1, wherein the carrier plate is secured to the housing by resilient detent members.
6. An arrangement of claim 1, wherein each diode comprises a light tranasmitting casing coaxially with the respective opening and at least partially overlapping the respective opening.
7. An arrangement of claim 1 wherein the carrier plate is a print plate.
8. An arrangement of claim 1, wherein the carrier plate is a plastic plate to which are soldered or welded secured stamped conductor means or vice-like conductors.
9. An arrangement of claim 1, wherein the carrier plate is a plastic plate including printed or galvanically applied conductors.
10. An arrangement according to claim 6, wherein the light transmitting carrier of the diodes is square or cylindric.
11. An arrangement according to claim 1, wherein a plurality of openings is provided in the housing, each provided with a respective light emitting diode, the light emitting diodes having arranged on a common carrier plate, common terminal means for the light diodes being disposed at the opposed surface of the carrier plate.
12. An arrangement of one of claims 7, 8 or 9, further comprising one of the following features:
(a) the arrangement comprises a series resistor operatively associated with the respective light emitting diode or diodes and having its longitudinal axis parallel to the carrier plate;
(b) terminals are disposed at that surface of the carrier plate which faces away from the diode or diodes;
(c) the housing is provided with side-ways engageable resilient first detent members for securement of the housing to a switchboard panel, control panel or the like;
(d) the carrier plate is secured to the housing by resilient second detent members; and (e) each diode comprises a light transmitting casing coaxially with the respective opening and at least partially overlapping the respective opening.
(a) the arrangement comprises a series resistor operatively associated with the respective light emitting diode or diodes and having its longitudinal axis parallel to the carrier plate;
(b) terminals are disposed at that surface of the carrier plate which faces away from the diode or diodes;
(c) the housing is provided with side-ways engageable resilient first detent members for securement of the housing to a switchboard panel, control panel or the like;
(d) the carrier plate is secured to the housing by resilient second detent members; and (e) each diode comprises a light transmitting casing coaxially with the respective opening and at least partially overlapping the respective opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH6737/82-1 | 1982-11-19 | ||
| CH673782 | 1982-11-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1236440A true CA1236440A (en) | 1988-05-10 |
Family
ID=4314229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000441450A Expired CA1236440A (en) | 1982-11-19 | 1983-11-18 | Signal lamp with an illumination diode |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0110218B1 (en) |
| JP (1) | JPS59104690A (en) |
| AT (1) | ATE25141T1 (en) |
| CA (1) | CA1236440A (en) |
| DE (2) | DE8332535U1 (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH400845A (en) * | 1963-02-15 | 1965-10-15 | Contraves Ag | Socket for a signal lamp, especially for a fluorescent tube |
| DE1465311A1 (en) * | 1964-08-27 | 1969-04-24 | Busch Jaeger Duerener Metall | Electrotechnical installation device, in particular switch and socket with a box-shaped insulating material socket for a glow or incandescent lamp |
| DE1589297B2 (en) * | 1965-04-22 | 1971-09-30 | Pistor & Krönert, 5880 Lüdenscheid | SOCKET FOR A SIGNAL OR INDICATOR LIGHT PROVIDED WITH A SOFFIT-SHAPED GOLD LAMP AND A ROD-SHAPED RESISTOR |
| US3435449A (en) * | 1967-01-16 | 1969-03-25 | Charles S Sloan | Indicator light and light housing for printed-circuit boards |
| DE2951081A1 (en) * | 1979-12-19 | 1981-06-25 | Robert Bosch Gmbh, 7000 Stuttgart | HOLDING DEVICE FOR AT LEAST TWO CYLINDRICAL OR PRISMATIC ELECTROOPTICAL DISPLAY ELEMENTS |
-
1983
- 1983-11-11 AT AT83111268T patent/ATE25141T1/en not_active IP Right Cessation
- 1983-11-11 DE DE19838332535U patent/DE8332535U1/en not_active Expired
- 1983-11-11 DE DE8383111268T patent/DE3369375D1/en not_active Expired
- 1983-11-11 EP EP83111268A patent/EP0110218B1/en not_active Expired
- 1983-11-16 JP JP58215896A patent/JPS59104690A/en active Pending
- 1983-11-18 CA CA000441450A patent/CA1236440A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59104690A (en) | 1984-06-16 |
| DE8332535U1 (en) | 1984-02-09 |
| DE3369375D1 (en) | 1987-02-26 |
| EP0110218A1 (en) | 1984-06-13 |
| EP0110218B1 (en) | 1987-01-21 |
| ATE25141T1 (en) | 1987-02-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |