Building equipment indicator lights

Abstract

To provide a technology for an indicator lamp that is installed on the wall surface of a building facility to display a static design, and has a high degree of freedom in installation on the wall surface and excellent design. The indicator light for building facilities includes a projection housing unit that polarizes light from a light source to generate projection information of a still design and projects the projection information toward a display unit on a wall, and a control device that controls the projection operation of the projection housing unit in accordance with the state of the building facilities. The projection housing unit includes a plurality of optical units, each of which includes a light source unit that emits light from the light source, a lens unit that focuses the light from the light source, and an optical filter unit that polarizes the light from the light source to generate the projection information, and a reflecting member that reflects each of the projection information emitted from the plurality of optical units toward the display unit. When the indicator light is a hall lantern installed on the wall of an elevator hall, the control device controls the projection operation of each of the plurality of optical units in accordance with the operation of the elevator.

Description

[Technical Field]

[0001] The present disclosure relates to a technology for a lantern-type indicator light to be installed on the wall surface of a building facility. [Background technology]

[0002] Patent Document 1 discloses a technology related to an elevator display. The display of this technology includes a plurality of stacked light guide plates attached to a housing, and light emitting diodes provided corresponding to each light guide plate, which irradiate light onto the end face of the light guide plate when energized. Then, by energizing a light emitting diode provided corresponding to one of the plurality of light guide plates, a pattern formed on the light guide plate provided corresponding to the energized light emitting diode is displayed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2007-76910 Summary of the Invention [Problem to be solved by the invention]

[0004] In the display of Patent Document 1, the light source is not disposed on the rear side of the light guide plate, so the thickness dimension of the display can be configured to be relatively thin. Therefore, the display of Patent Document 1 can be installed directly on the wall surface without storing the device in an existing storage box formed on the wall surface. However, even though the display of Patent Document 1 is configured to be relatively thin, it is unavoidable that the thickness of the multiple light guide plates protrudes from the wall surface, which still leaves issues such as reduced design and restrictions on installation locations.

[0005] The present disclosure has been made to solve the above-mentioned problems, and aims to provide technology for indicator lights that are installed on the walls of building facilities to display static designs, which have a high degree of freedom in installation on the wall and excellent design. [Means for solving the problem]

[0006] The building facility indicator light of the present disclosure is installed on the wall surface of the building facility, and polarizes light from a light source to generate projection information of a static pattern, and on the same plane as and a control device that controls the projection operation of the projection housing unit according to the state of the building facilities. [Effects of the Invention]

[0007] According to the technology disclosed herein, it is possible to provide a technology for indicator lights that are installed on the walls of building facilities to display static designs, which have a high degree of freedom in installation on the wall and excellent design. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is an external configuration diagram of an elevator to which a hall lantern according to an embodiment of the present disclosure is applied. [Figure 2] FIG. 1 is a front view showing a schematic configuration of the exterior of a hall lantern installed on a wall surface. [Figure 3] 3 is a partial perspective view of the internal structure of the hall lantern as seen from the horizontal direction H in FIG. 2. [Figure 4] 3 is a partial perspective view of the internal structure of the hall lantern as seen from the vertical direction V in FIG. 2. FIG. [Figure 5] FIG. 2 is a diagram illustrating an example of a functional configuration of a hall lantern according to an embodiment. [Figure 6] FIG. 2 is a functional block diagram showing functions realized by a control device. [Figure 7] 3 is a flowchart of a routine executed by the control device. [Figure 8] FIG. 10 is a diagram illustrating a modification of the hardware resources of the control device. [Figure 9] FIG. 10 is a perspective view showing a schematic configuration of the exterior of a hall lantern according to a second embodiment. [Figure 10]FIG. 10 is a diagram showing an example of installation of a hall lantern according to a second embodiment. [Figure 11] FIG. 10 is a perspective view showing a schematic configuration of the exterior of a hall lantern according to a third embodiment. [Figure 12] FIG. 1 is a perspective view showing an example of a decorative part. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, an embodiment will be described with reference to the drawings. Note that elements common to the various drawings are given the same reference numerals and redundant explanations will be omitted.

[0010] Embodiment 1 1-1. Elevator exterior configuration 1 is an external configuration diagram of an elevator to which a hall lantern according to an embodiment of the present disclosure is applied. The elevator 1 is installed as a building facility in a building with multiple floors. Each floor is provided with a landing 2 serving as an elevator hall.

[0011] Each landing 2 is provided with a landing door 4 corresponding to the elevator 1. A landing push button 8 for calling the elevator 1 is provided on a wall 6 of the landing 2. A hall lantern 10 is also installed above the wall 6 of the landing 2. The hall lantern 10 is an indicator light that projects a static design representing the operating status of the elevator 1 onto a display unit 6a on the wall 6. The configuration of the hall lantern 10 will be described in detail below.

[0012] 1-2. Configuration of the hall lantern Fig. 2 is a front view showing the schematic configuration of the exterior of the hall lantern installed on a wall. Fig. 3 is a partial perspective view of the internal configuration of the hall lantern as seen from the horizontal direction H in Fig. 2. Fig. 4 is a partial perspective view of the internal configuration of the hall lantern as seen from the vertical direction V in Fig. 2. Note that Figs. 3 and 4 show only the main components of the internal configuration of the hall lantern 10.

[0013] The hall lantern 10 is a projection display type hall lantern that projects projection information of a static design onto a display unit 6a on the wall 6 from a housing that protrudes from the wall 6 toward the landing 2. The hall lantern 10 mainly comprises a projection housing unit 12, multiple optical units 14, a reflecting member 22, and a control device 30. The projection housing unit 12 is a rectangular parallelepiped housing that forms the outer shell of the hall lantern 10, and is installed so as to protrude from the wall 6 of the landing 2 above the display unit 6a. The projection housing unit 12 has a chamfered inclined surface 12a on at least a portion of the edge of its bottom surface. Here, the projection housing unit 12 is shown with the inclined surface 12a provided on the edge except for the side that contacts the base end of the bottom surface. The projection housing unit 12 houses multiple optical units 14, the reflecting member 22, and the control device 30.

[0014] Each of the optical units 14 emits projection information of a unique still design from a light guide at its tip. The optical units 14 are arranged in parallel in the horizontal direction inside the projection housing 12 so that the projection information is oriented toward the tip of the projection housing 12.

[0015] Each of the multiple optical units 14 includes a light source unit 16, multiple lens units 18, and an optical filter unit 20. The light source unit 16 emits light source light toward the tip side of the projection housing unit 12. The light source unit 16 is, for example, one or multiple LEDs. The multiple lens units 18 focus the light source light. The optical filter unit 20 polarizes the light source light to generate projection information of a still design.

[0016] The hall lantern 10 of this embodiment includes a first optical unit 14a and a second optical unit 14b as the multiple optical units 14. In the following description, when distinguishing between the light source unit 16, the multiple lens units 18, and the optical filter unit 20 included in the first optical unit 14a, they will be referred to as the first light source unit 16a, the multiple first lens units 18a, and the first optical filter unit 20a. When distinguishing between the light source unit 16, the multiple lens units 18, and the optical filter unit 20 included in the second optical unit 14b, they will be referred to as the second light source unit 16b, the multiple second lens units 18b, and the second optical filter unit 20b.

[0017] The first optical filter unit 20a polarizes the light source light to generate projection information for an up display indicating that the moving direction of the car of the elevator 1 is the "up direction." On the other hand, the second optical filter unit 20b polarizes the light source light to generate projection information for a down display indicating that the moving direction of the car of the elevator 1 is the "down direction."

[0018] The first light source unit 16a and the second light source unit 16b are mounted on, for example, a common substrate. The reflecting member 22 reflects the projection information emitted from the optical unit 14 toward the tip side of the projection housing unit 12 diagonally downward toward the display unit 6a on the wall surface 6. The optical filter unit 20 and lens unit 18 of each of the first optical unit 14a and the second optical unit 14b are optically designed so that the projection information for the upstream display and the downstream display is projected without distortion at the same position on the display unit 6a.

[0019] The control device 30 is a processing device that controls the projection operation of the projection housing unit 12 in accordance with the status of the building facilities. Typically, the control device 30 independently controls the light source light emitted from the multiple optical units 14 in accordance with the operating status of the elevator 1. When the control device 30 of the first optical unit 14a causes the first light source unit 16a to emit light, the light source light passes through the multiple first lens units 18a and the first optical filter unit 20a, generating projection information for an up-display and emitting it from the first optical unit 14a. The projection information for an up-display emitted from the first optical unit 14a is projected onto the display unit 6a via the reflecting member 22. Similarly, when the control device 30 causes the second light source unit 16b of the second light source unit 16b to emit light, the light source light passes through the multiple second lens units 18b and the second optical filter unit 20b, generating projection information for a down-display and emitting it from the second optical unit 14b. The projection information for a down-display emitted from the second optical unit 14b is projected onto the display unit 6a via the reflecting member 22.

[0020] 1-3. Functional configuration of the hall lantern according to the embodiment 5 is a diagram showing an example of the functional configuration of the hall lantern according to the embodiment. The hall lantern 10 includes a control device 30, a first light source unit 16a, and a second light source unit 16b as main components related to the control function.

[0021] The control device 30 has the functionality of a processing device as a computer, and controls the lighting state of the first light source unit 16a and the second light source unit 16b according to the direction of movement of the elevator 1. Typically, the control device 30 has at least one processor 32 and at least one memory 34 coupled to the processor 32. The memory 34 stores at least one program 341 executable by the processor 32 and various data 342 associated therewith. The processor 32 executes the program 341, thereby realizing various processes by the processor 32.

[0022] Fig. 6 is a functional block diagram showing functions realized by the control device 30. As shown in Fig. 6, the control device 30 includes a signal acquisition unit 301 and a light emission processing unit 302 as functions realized by the processor 32 executing a program 341.

[0023] The signal acquisition unit 301 is a functional block for acquiring operation signals transmitted from the control panel 40. This processing is hereinafter referred to as "signal acquisition processing." The control panel 40 is a processing device for comprehensively controlling the operation of the car of the elevator 1. The control panel 40 is configured to be capable of data communication with the control device 30 via a communication network such as a wired line or the Internet. The control panel 40 transmits operation signals that are signals representing operation information of the elevator 1 to the control device 30. The operation information here includes, for example, the direction of movement of the car, the car position, and door opening / closing information of the landing door 4. The signal acquisition unit 301 acquires operation signals from the control panel 40 as needed.

[0024] The light emission processing unit 302 generates an operation command for causing the first light source unit 16a or the second light source unit 16b to emit light based on the operation signal acquired by the signal acquisition unit 301, and causes the first light source unit 16a or the second light source unit 16b to emit light in accordance with the generated operation command. This processing will be referred to as "light emission processing" hereinafter.

[0025] In the light emission process, the light emission processing unit 302 causes the first light source unit 16a to emit light if the movement direction of the elevator 1 car included in the operation signal is an upward direction, and causes the second light source unit 16b to emit light if the movement direction is a downward direction.

[0026] 1-4. Specific processing executed in the hall lantern of the embodiment Hereinafter, with reference to a flowchart, an operation of projecting and displaying the car's moving direction from the hall lantern 10 as the operating status of the elevator 1 will be described. Fig. 7 is a flowchart of a routine executed by the control device 30. The routine shown in Fig. 7 is repeatedly executed by the processor 32 of the control device 30 at a predetermined cycle.

[0027] The processing of step S100 corresponds to the signal acquisition processing executed by the signal acquisition unit 301. Specifically, in step S100, it is determined whether or not an operation signal for the elevator 1 has been received from the control panel 40. As a result, if the determination is found to be true, the processing proceeds to step S102, and if the determination is found to be false, the processing of this routine is terminated.

[0028] The processing from step S102 to step S108 corresponds to the light emission processing executed in the light emission processing unit 302. Specifically, in step S102, it is determined whether the car movement direction included in the operation signal is the up direction. As a result, if the determination is found to be true, the processing proceeds to step S104, and if the determination is found to be false, the processing proceeds to step S106.

[0029] In step S104, the first light source unit 16a is illuminated. As a result, the projection information for the up display is projected and displayed on the display unit 6a on the wall surface 6. In step S106, it is determined whether the car movement direction included in the operation signal is the down direction. As a result, if the determination is found to be true, the processing proceeds to step S108, and if the determination is found to be false, the processing of this routine is terminated. In step S108, the second light source unit 16b is illuminated. As a result, the projection information for the down display is displayed on the display unit 6a on the wall surface 6.

[0030] The above-described configuration of the hall lantern 10 provides the following functions and effects.

[0031] With the hall lantern 10, a display corresponding to the direction of movement of the elevator 1 is projected onto the display unit 6a on the wall surface 6. This type of projection display method eliminates the need to store the device body in a storage space embedded in the wall surface or to install the device body on the display unit on the wall surface, thereby increasing the degree of freedom in installation during modernization.

[0032] The hall lantern 10 is configured so that the light guide that emits projection information from the optical unit 14 is not directly facing the display unit 6a on the wall surface 6, but rather reflects the projection information onto the display unit 6a on the wall surface 6 via the reflecting member 22. With this configuration, the path distance from the light guide to the display unit 6a can be secured while the amount of protrusion of the projection housing unit 12 of the hall lantern 10 can be reduced.

[0033] The reflecting member 22 is configured to reflect the projection information emitted from the optical unit 14 obliquely downward toward the display unit 6a located below the projection housing unit 12. With this configuration, the opening through which the emitted projection information passes is provided on the bottom side of the projection housing unit 12, thereby preventing dust and other particles from adhering to the optical components. This makes it possible to prevent deterioration of projection performance over a long period of time. Furthermore, because the projection information is irradiated obliquely downward from the opening of the projection housing unit 12 toward the display unit 6a, it is possible to prevent the light source light emitted from the light source unit 16 from directly entering the user's eyes.

[0034] The projection information for the up-display and the down-display, which are alternatively illuminated from the projection housing 12 of the hall lantern 10, is projected at the same position on the display unit 6a of the wall surface 6. This configuration allows for a display that is easy for users to see, and is also easy to use in wall environments where the area of ​​the display unit 6a is limited. Furthermore, the optical design of multiple optical units 14 can be standardized, thereby reducing manufacturing costs and the effort required for design.

[0035] The projection housing 12 of the hall lantern 10 has a chamfered inclined surface 12a at the edge of the bottom surface. With this configuration, the inclined surface 12a has a shadow effect that makes the housing appear slimmer than the other surfaces, making the housing appear slimmer.

[0036] 1-5. Variations The hall lantern 10 of the embodiment may adopt the following modified forms.

[0037] 1-5-1.Quantity of Optical Unit 14 The number of optical units 14 included in the hall lantern 10 is not limited to two. That is, the hall lantern 10 may be configured as an indicator light having a single optical unit 14 and projecting and displaying a single piece of projection information, or may be configured as an indicator light having three or more optical units 14 and projecting and displaying three or more pieces of projection information alternatively.

[0038] 1-5-2.Control device 30 Fig. 8 is a diagram showing a modified example of the hardware resources of a control device. In the example shown in Fig. 8, the control device 30 includes a processing circuit 38 including, for example, a processor 32, a memory 34, and dedicated hardware 36. Fig. 8 shows an example in which some of the functions of the control device 30 are realized by the dedicated hardware 36. All of the functions of the control device 30 may also be realized by the dedicated hardware 36. The dedicated hardware 36 may be a single circuit, a composite circuit, a programmed processor, a parallel programmed processor, an ASIC, an FPGA, or a combination thereof.

[0039] There is no limitation on the hardware arrangement of the control device 30. That is, the control device 30 may be arranged inside or outside the hall lantern 10. When the control device 30 is arranged outside the hall lantern 10, the control device 30 may be connected to the light source unit 16 of the hall lantern 10 by wired or wireless communication.

[0040] There are no limitations on the functional arrangement of the control device 30. That is, some or all of the functions of the control device 30 may be arranged in the control panel 40. Furthermore, if the operation of the elevator 1 is monitored by a server located in a remote location, some or all of the functions of the control device 30 may be arranged in the server.

[0041] If the operation of the elevator 1 is monitored by a server located in a remote location, the control device 30 may be configured to receive an operation signal from the server via a communication network. The communication network may be a general-purpose communication method such as the Internet or short-range wireless communication.

[0042] 1-5-3.Projection housing part 12 The projection housing unit 12 does not necessarily have to have the chamfered inclined surface 12a.

[0043] The projection housing unit 12 may be configured to be adjustable in position or size of the projection information projected onto the wall surface 6. For example, the projection housing unit 12 is configured to be able to finely adjust the positions of the optical unit 14, the reflecting member 22, etc., arranged inside. With this configuration, the position or size of the projection information can be optimized depending on the installation environment of the hall lantern 10 on the wall surface 6.

[0044] 1-5-4.Light Emission Processing In the light emission process, lighting control may be performed to change the lighting mode of the hall lantern 10 depending on the state of the elevator 1. Below, several examples of lighting control will be described.

[0045] 1-5-4-1. Lighting control example 1 In the light emission process, light source light may be emitted from the light source unit 16 in accordance with the timing of the car landing on the floor. In this case, the light emission processing unit 302 of the control device 30 may calculate the timing of the car landing on the floor backward from the car position included in the operation signal, and may emit light from the light source unit 16 at a timing that precedes the calculated timing of the car landing by a predetermined time.

[0046] 1-5-4-2. Lighting control example 2 In the light-emitting process, the color of the projection information may be changed depending on the congestion level of the car. In this case, an LED capable of emitting light in multiple colors is used for the light source unit 16. The control panel 40 of the elevator 1 calculates an index value representing the congestion level inside the car from an image of the car interior or a detection value from the car's weighing device, and transmits the index value together with an operation signal as congestion level information to the control device 30. Then, the light-emitting processing unit 302 of the control device 30 causes the light source unit 16 to emit light in a color corresponding to the congestion level included in the congestion level information. For example, if the value indicates a high congestion level, the light-emitting processing unit 302 causes the light source unit 16 to emit red light, and if the value indicates a low congestion level, the light source unit 16 to emit white light.

[0047] 1-5-4-3. Lighting control example 3 In the light emission processing, the color of the projection information may be changed in accordance with the timing of opening and closing of the hall door 4. In this case, for example, an LED capable of emitting light in multiple colors is used as the light source unit 16. The light emission processing unit 302 of the control device 30 changes the light emission color of the light source unit 16 in accordance with the timing of opening and closing of the hall door 4 obtained from the door opening / closing information included in the operation signal. As an example, the light emission processing unit 302 normally causes the light source unit 16 to emit light in white, and causes the light source unit 16 to emit light in red in accordance with the timing of opening and closing of the hall door 4.

[0048] 1-5-4-4. Lighting control example 4 In the light-emitting process, the color of the projection information may be changed according to the time required for the car to arrive. In this case, for example, an LED capable of emitting light in multiple colors is used as the light source unit 16. The light-emitting processing unit 302 of the control device 30 calculates backward the time required for the car to arrive from the car position included in the operation signal, and changes the light-emitting color of the light source unit 16 according to the length of the calculated required time. As an example, the light-emitting processing unit 302 causes the light source unit 16 to emit red light if the required time is longer than the judgment value, and causes the light source unit 16 to emit blue light if the required time is shorter than the judgment value.

[0049] 1-5-5.Projection information The projection information is not limited to a shape, a pattern, or a color, as long as it is a still image unique to each optical unit 14 .

[0050] The displayed projected information may be enhanced with special effects to improve visibility. Because the display format of the projected information on the display unit 6a of the wall surface 6 is projection, it is susceptible to the material, pattern, and color of the display unit 6a of the wall surface 6, as well as the ambient brightness. Therefore, the optical filter unit 20 or the light source unit 16 may be configured to enhance the visibility of the displayed projected information. Examples of special effects that can be applied to the still image by the optical filter unit 20 include outlining the still image boundary, adding shadows to the still image, reversing the brightness of the still image (so-called negative-positive inversion), adding hatching to the still image, and adding color by adding a color filter. Examples of special effects that can be applied to the still image by the light source unit 16 include adding gradations of color, brightness, or a combination thereof, changing the light source color, etc. By applying special effects to the hall lantern 10 according to the installation environment, the visibility of the projected information can be optimized for the installation environment.

[0051] 1-5-6.Other The hall lantern 10 as an indicator light for building facilities is not limited to use as an indicator light that displays the operating status of the elevator 1 in the elevator hall, but may also be configured to be used as an indicator light for other building facilities.

[0052] For example, the hall lantern 10 may be configured as a guide indicator light installed on the wall surface of the entrance to a restroom as a building facility. In this case, the hall lantern 10 functions as an indicator light that indicates the occupancy status of the restroom. The first optical filter unit 20a is configured to generate, as projection information, a static image of a "crowded" sign indicating that the restroom is crowded. The second optical filter unit 20b is configured to generate, as projection information, a static image of a "vacant" sign indicating that the restroom is empty. The building facility generates an occupancy status signal indicating the occupancy status of the restroom based on a signal from a motion sensor installed in the restroom, and transmits the signal to the control device 30. In a signal acquisition process, the signal acquisition unit 301 acquires the occupancy status signal. Then, in a light emission process, the light emission processing unit 302 illuminates the first light source unit 16a to project projection information indicating congestion when it is determined that the restroom is crowded based on the occupancy status signal, and illuminates the second light source unit 16b to project projection information indicating vacancy when it is determined that the restroom is empty.

[0053] Although the above example describes the application of the hall lantern 10 as a guide indicator for a restroom as a building facility, the hall lantern 10 may also be applied as a guide indicator for displaying the usage status of building facilities such as living rooms, rental conference rooms, and common spaces. In this way, the hall lantern 10 of this embodiment can be applied to various indicators that project displays according to the status of building facilities.

[0054] 2. Embodiment 2 In the second embodiment, differences from the example disclosed in the first embodiment will be described in particular detail. For features not described in the second embodiment, any of the features of the example disclosed in the first embodiment may be adopted.

[0055] 2-1. Features of the Hall Lantern of the Second Embodiment FIG. 9 is a perspective view showing a schematic configuration of the exterior of a hall lantern according to the second embodiment. The hall lantern 10 according to the second embodiment further includes a screen unit 50 in addition to the configuration of the hall lantern 10 according to the first embodiment. The screen unit 50 is a rectangular plate extending downward from the installation portion of the projection housing unit 12, and is large enough to cover the display unit 6a. The upper end side of the screen unit 50 is fixed by being sandwiched in the gap between the projection housing unit 12 and the wall surface 6. There is no limitation on the method of fixing the screen unit 50.

[0056] According to such a configuration of the screen unit 50, the projection information emitted from the projection housing unit 12 is projected onto the screen unit 50. This makes it possible to prevent a decrease in visibility of the projection display even if the wall surface 6 has a color, pattern, or unevenness that makes it difficult to see the projection display.

[0057] 10 is a diagram showing an example of installation of a hall lantern according to embodiment 2. When modernizing an elevator 1, the hall lantern before modernization may be of a type that is stored in a storage space 6b embedded in a wall surface 6. When a hall lantern 10 according to embodiment 2 is newly installed on a wall surface 6 with such specifications, the existing storage space 6b will not be used, and so some means will be required to hide the storage space 6b.

[0058] 10, the hall lantern 10 according to the second embodiment is installed in a position where the screen part 50 covers the opening of the storage space 6b. With this configuration, the storage space 6b can be hidden by the screen part 50 without the need to provide a separate member for hiding the storage space 6b.

[0059] 3. Embodiment 3 In the third embodiment, differences from the example disclosed in the first embodiment will be described in particular detail. For features not described in the third embodiment, any of the features of the example disclosed in the first embodiment may be adopted.

[0060] 3-1. Features of the Hall Lantern of the Third Embodiment FIG. 11 is a perspective view showing a schematic configuration of the exterior of a hall lantern according to the third embodiment. The hall lantern 10 according to the third embodiment further includes a decorative part 60 in addition to the configuration of the hall lantern 10 according to the first embodiment. FIG. 12 is a perspective view showing an example of the decorative part. The decorative part 60 is a detachable design part that covers three sides of the projection housing part 12 of the hall lantern 10. The decorative part 60 has a design on its surface that is colored, patterned, textured, or a combination thereof. There is no limitation on the design form of the decorative part 60. In addition, an attachment member 62 is provided on the back side of the decorative part 60 for sheet adhesion or magnetic attachment to the projection housing part 12.

[0061] As long as the decorative part 60 is configured to cover at least a portion of the projection housing part 12, it may be configured in a U-shape that covers all three sides of the projection housing part 12, or it may be configured to cover each side of the projection housing part 12 as a separate part.

[0062] Such a configuration of the decorative component 60 allows the design of the hall lantern 10 to be easily changed to meet the diverse needs of customers. [Explanation of symbols]

[0063] 1 elevator, 2 landing, 4 landing door, 6 wall, 6a display unit, 6b storage space, 8 landing push button, 10 hall lantern, 12 projection housing unit, 12a inclined surface, 14 optical unit, 14a first optical unit, 14b second optical unit, 16 light source unit, 16a first light source unit, 16b second light source unit, 18 lens unit, 18a first lens unit, 18b second lens unit, 20 optical filter unit, 20a first optical filter unit, 20b second optical filter unit, 22 reflecting member, 30 control device, 32 processor, 34 memory, 36 dedicated hardware, 38 processing circuit, 40 control panel, 50 screen unit, 60 decorative part, 301 signal acquisition unit, 302 Light emission processing unit, 341 program, 342 data

Claims

1. a projection housing unit that is installed on a wall surface of the building facility, polarizes light from a light source to generate projection information of a still design, and projects the projection information toward a display unit that is on the same plane as the wall surface; a control device that controls a projection operation by the projection housing unit in accordance with the state of the building facilities; A building facility indicator light equipped with:

2. The projection housing unit includes: a light source unit that emits the source light; a lens unit that condenses the light from the light source; an optical filter unit that polarizes the light source light to generate the projection information; a plurality of optical units each including a reflecting member that reflects each of the pieces of projection information emitted from the plurality of optical units toward the display unit; The indicator light for building facilities according to claim 1, comprising:

3. the projection housing is installed above the display unit so as to protrude from the wall surface, the plurality of optical units are arranged in parallel so as to emit the projection information toward a tip end side of the projection housing unit, The reflecting member reflects each of the pieces of projection information emitted from the plurality of optical units obliquely downward toward the same position on the display unit.

3. The indicator light for building facilities according to claim 2, which is configured as follows:

4. The building facilities include an elevator; the projection housing unit is installed on the wall surface of the elevator hall, The control device is configured to control the projection operation of each of the plurality of optical units in response to the operation of the elevator.

4. An indicator light for building facilities according to claim 2 or 3.

5. The plurality of optical units include: a first optical unit including a first optical filter unit that generates, as the projection information, an up indication that indicates that the moving direction of the elevator is an up direction; a second optical unit including a second optical filter unit that generates, as the projection information, a downward display indicating that the elevator's moving direction is a downward direction; Including, The control device alternatively displays the up indication when the moving direction of the elevator is the up direction, and alternatively displays the down indication on the display unit when the moving direction of the elevator is the down direction.

5. The indicator light for building facilities according to claim 4, which is configured as follows:

6. The control device executes lighting control to change the lighting mode of the light source light emitted from the light source unit based on the state of the elevator.

5. The indicator light for building facilities according to claim 4, which is configured as follows:

7. the light source unit is configured to be able to emit the source light of a plurality of colors, In the lighting control, the control device changes the color of the light source light according to the degree of congestion in the elevator car. The indicator light for building facilities according to claim 6, which is configured as follows:

8. the building facilities include restrooms; the projection housing unit is installed on the wall surface at the entrance to the restroom, The control device is configured to control the projection operation of each of the plurality of optical units according to the occupancy state of the restroom.

4. An indicator light for building facilities according to claim 2 or 3.

9. The plurality of optical units include: a first optical unit including a first optical filter unit that generates, as the projection information, a crowded display indicating that the restroom is crowded; and a second optical unit including a second optical filter unit that generates, as the projection information, a vacancy display indicating that the restroom is vacant; and Including, The control device alternatively displays the crowded display on the display unit when the restroom is in a crowded usage state, and alternatively displays the vacant display on the display unit when the restroom is in an empty usage state.

9. The indicator light for building facilities according to claim 8, which is configured as follows:

10. a plate-shaped screen portion extending downward from the projection housing portion along the wall surface so as to cover the display portion on the wall surface; 3. An indicator light for building facilities according to claim 1 or 2.

11. The indicator light for building facilities according to claim 10 , wherein the screen unit is disposed so as to be sandwiched between the projection housing unit and the wall surface.

12. The indicator light for building facilities according to claim 10, wherein the screen portion is arranged so as to cover an opening of a storage space embedded in the wall surface.

13. Further, a decorative part covering at least a part of the projection housing part is provided.

3. An indicator light for building facilities according to claim 1 or 2.

14. The indicator light for building facilities according to claim 13, wherein the decorative component is configured to be detachably fixed to the projection housing by magnetic or adhesive bonding.

15. The indicator light for building facilities according to claim 1 or 2, wherein the projection housing unit has a chamfered inclined surface on at least a part of the edge of the bottom surface.

16. 3. The indicator light for building facilities according to claim 1, wherein the projection housing unit is configured to add a special effect to the static design to enhance its visibility.

17. 17. The indicator light for building facilities according to claim 16, wherein the special effect on the static design includes any one of adding a border to a boundary, adding a shadow, reversing light and dark, adding hatching, and adding color.

Images