JP2019006179A - Light source control device, and luminaire for bicycle, comprising the same - Google Patents

Abstract

To provide a light source control device excellent in appearance.SOLUTION: A light source control device 15, which controls the amount of light from a first light source 33 and the amount of light from a second light source 34, maintains a state in which the first light source 33 and the second light source 34 are simultaneously put on, in at least one of the case where the amount of the light from the first light source 33 is increased and where the amount of the light from the second light source 34 is decreased and maintained and the case where the mount of the light from the second light source 34 is decreased and where the amount of the light from the first light source 33 is increased or maintained.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a light source control device and a bicycle lighting device including the light source control device.

  Some conventional bicycle lighting devices include a plurality of light sources. For example, Patent Literature 1 includes two LED light emitters, a main LED light emitter and a sub LED light emitter, and for a bicycle that emits only one of the main LED light emitter and the sub LED light emitter according to ambient illuminance. A lighting control device is disclosed.

Japanese Patent No. 5766245

  Since the bicycle lighting control device of Patent Document 1 causes only one of the two LED light emitters to emit light in accordance with the ambient illuminance, there is a concern that the appearance may deteriorate.

  An object of the present invention is to provide a light source control device having an excellent appearance in a light source control device.

  A light source control device according to one aspect of the present invention includes a first light source, a second light source, and a light source control device. The light source control device controls the light amount of the first light source and the light amount of the second light source, increases the light amount of the first light source, and decreases or maintains the light amount of the second light source. In the case where the light amount of the first light source is decreased and the light amount of the first light source is increased or maintained, the state where the first light source and the second light source are simultaneously turned on is maintained.

  In this light source control device, when the light amount of the first light source is increased and the light amount of the second light source is decreased or maintained, and when the light amount of the second light source is decreased, the light amount of the first light source In the case where the first light source and the second light source are simultaneously turned on in at least one of the cases where the light source is increased or maintained, it is possible to provide a light source control device excellent in appearance.

  Preferably, the light source control unit decreases the light amount of the first light source and increases or maintains the light amount of the second light source, and increases the light amount of the second light source, and the first light amount. In at least one of the cases where the first light source and the second light source are simultaneously turned on, the state in which the first light source and the second light source are turned on is maintained.

  In this light source control device, when the light amount of the first light source is decreased and the light amount of the second light source is increased or maintained, and when the light amount of the second light source is increased, the first light amount is decreased. Alternatively, the state in which the first light source and the second light source are simultaneously turned on is maintained even in at least one of the cases where the light source is maintained, so that it is possible to provide a light source control device having an excellent appearance.

  Preferably, the light source control unit always turns on the second light source when the first light source is turned on. In this light source control device, since the second light source is always turned on when the first light source is turned on, it is possible to provide a light source control device having an excellent appearance.

  Preferably, the light source controller turns on the first light source and the second light source at the same time. With this light source control device, it is possible to provide a light source control device having an excellent appearance from the time of lighting.

  Preferably, the light source control unit turns off the first light source and the second light source simultaneously. With this light source control device, it is possible to provide a light source control device having an excellent appearance even when the light is turned off.

  Preferably, the first light source and the second light source have different optical axis directions. In this light source control device, it is possible to provide a light source control device having an excellent appearance in a light source control device having a plurality of light sources having different optical axes.

Preferably, it has a substrate provided with a first light source and a second light source,
The direction in which the first mounting surface on which the first light source is mounted and the second mounting surface on which the second light source is mounted is the same. In this light source control device, since the first mounting surface and the second mounting surface face the same direction, the light source control device can be easily manufactured.

  Preferably, the first light source is a high beam light source. In this light source control device, it is possible to provide a light source control device having an excellent appearance in a light source control device having a high beam light source.

  Preferably, the second light source is a low beam light source. With this light source control device, it is possible to provide a light source control device having an excellent appearance in a light source control device having a low beam light source.

  Preferably, the power consumption of the first light source is larger than that of the second light source. With this light source control device, it is possible to provide a light source control device with excellent appearance in a light source control device having light sources with different power consumption.

  Preferably, the irradiation area of the first light source and the irradiation area of the second light source are different from each other. With this light source control device, it is possible to provide a light source control device with excellent appearance in a light source control device having light sources with different irradiation areas.

  Preferably, the irradiation area of the second light source is limited as compared with the first light source. In this light source control device, appropriate irradiation according to the situation becomes possible.

  Preferably, the irradiation area in the predetermined direction of the second light source is limited as compared with the other direction compared to the first light source. With this light source control device, it is possible to suppress irradiation in a predetermined direction according to the situation.

  Preferably, the first light source and the second light source are arranged in a predetermined direction. With this light source control device, it is possible to provide a light source control device having an excellent appearance in a light source control device having light sources arranged in a direction to suppress irradiation.

  Preferably, the first light source and the second light source are arranged in a direction perpendicular to the predetermined direction. In this light source control device, it is possible to provide a light source control device having an excellent appearance in a light source control device having light sources arranged in a direction orthogonal to a direction in which irradiation is suppressed.

  Preferably, the predetermined direction is upward. In this light source control device, it becomes possible to suppress upward irradiation according to the situation.

  Preferably, an illuminance sensor that detects ambient illuminance is further provided, and the light source controller changes at least one of the light amount of the first light source and the light amount of the second light source based on a detection result of the illuminance sensor. In this light source control device, it is possible to provide a light source control device that is excellent in appearance in a light source control device that changes at least one of the light amount of the first light source and the light amount of the second light source according to the ambient illuminance. .

  Preferably, an operation unit is further provided, and the light source control unit changes at least one of the light amount of the first light source and the light amount of the second light source based on the operation of the operation unit. With this light source control device, it is possible to provide a light source control device with excellent appearance in a light source control device that changes at least one of the light amount of the first light source and the light amount of the second light source in accordance with the operation by the user. .

  Preferably, a speed sensor for detecting the speed of the bicycle is further provided, and the light source control unit changes at least one of the light quantity of the first light source and the light quantity of the second light source based on the detection result of the speed sensor. In this light source control device, it is possible to provide a light source control device that has an excellent appearance in a light source control device that changes at least one of the light amount of the first light source and the light amount of the second light source in accordance with the speed of the bicycle. .

  A bicycle lighting device according to the present invention includes any one of the light source control devices described above. In this case, it is possible to provide a bicycle lighting device having an excellent appearance in a bicycle lighting device including any one of the light source control devices described above.

  ADVANTAGE OF THE INVENTION According to this invention, in the light source control apparatus, it becomes possible to provide the light source control apparatus excellent in the external appearance.

The side view of the bicycle by which one Embodiment of this invention was employ | adopted. FIG. FIG. The block diagram which shows the structure of a light source control apparatus. The flowchart which shows the light source control process of a light source control part. The figure equivalent to FIG. 4 which concerns on other embodiment. The figure equivalent to FIG. 5 which concerns on other embodiment. The figure equivalent to FIG. 4 which concerns on other embodiment. The figure equivalent to FIG. 5 which concerns on other embodiment. The figure equivalent to FIG. 1 which concerns on other embodiment. The figure equivalent to FIG. 3 which concerns on other embodiment.

  In the following description, in order to make the description easy to understand, the traveling direction of the bicycle 100 is defined as the forward direction. Specifically, in FIG. 1, the right side is the front. Further, the left side when the bicycle 100 is viewed from the front is defined as left, and the right side is defined as right.

<First Embodiment>
FIG. 1 is a side view of a bicycle 100 in which an embodiment of the present invention is employed. The bicycle 100 includes a frame 2 having a front fork 2a, a handle 4, a front wheel 6, a rear wheel 8, a drive unit 14 including a chain 10, a pedal 12, and the like, and a light source control device 15 (FIGS. 2 and 2). 4)). A hub dynamo is incorporated in the front wheel 6 as an example of the generator 18, and the electric power generated by the generator 18 is supplied to the headlamp 16 through the power line 20.

  The headlamp 16 is an example of a bicycle lighting device. The headlamp 16 is fixed to a lamp stay 22 that extends forward from the front fork 2 a of the bicycle 100 via a bracket 24. As shown in FIGS. 2 and 3, the headlamp 16 has a case member 31. As shown in FIG. 3, the case member 31 has a substantially oval shape when viewed from the front. The case member 31 has an accommodation space 31a in which the light source control device 15 is accommodated, a first opening 31b, and a second opening 31c.

  The first opening 31b and the second opening 31c are substantially circular openings, and are formed in front of the case member 31 so as to be aligned in the vertical direction. A first lens 44 described later is attached to the first opening 31b. A second lens 45, which will be described later, is attached to the second opening 31c.

  As shown in FIG. 2, the case member 31 has a daylighting window 31d for taking light from the outside into the accommodation space 31a. The daylighting window 31 d is formed behind the case member 31. The daylighting window 31d is sealed by a transparent cover member 40.

  As illustrated in FIGS. 3 and 4, the light source control device 15 includes a substrate 32, a first light source 33, a second light source 34, an illuminance sensor 35, and a light source control unit 36. FIG. 4 is a view of the headlamp 16 as viewed from the front of the bicycle 100.

  The substrate 32 is accommodated in the accommodation space 31 a of the case member 31. Electric power generated by the generator 18 is supplied to the substrate 32. Specifically, power is supplied to the substrate 32 via a rectifier 37 for converting alternating current (AC) power generated by the generator 18 into direct current (DC) power.

  As shown in FIG. 3, the substrate 32 has a first mounting surface 32a and a second mounting surface 32b. The first mounting surface 32a and the second mounting surface 32b face the same direction. In the present embodiment, the first mounting surface 32a and the second mounting surface 32b are aligned in the vertical direction, and both face forward. The first light source 33 is mounted on the first mounting surface 32a. A second light source 34 is mounted on the second mounting surface 32b.

  In the present embodiment, the first light source 33 and the second light source 34 are both light emitting diodes. The first light source 33 and the second light source 34 are arranged side by side in a predetermined direction. In the present embodiment, the first light source 33 and the second light source 34 are arranged side by side in the vertical direction. In the present embodiment, the maximum power consumption of the first light source 33 is larger than the maximum power consumption of the second light source 34. That is, the light amount of the first light source 33 is larger than the light amount of the second light source 34.

  In the present embodiment, the first light source 33 is a high beam light source. The first light source 33 is supported by a support member 42 fixed inside the case member 31. A reflection member 46 for reflecting light from the first light source 33 toward the first lens 44 is fixed to the outer peripheral portion of the support member 42. The reflecting member 46 is formed to extend in an arc shape from the outer peripheral portion at the tip of the support member 42 toward the outer periphery of the first lens 44.

  The first lens 44 is a flat lens having a flat surface. The light emitted from the first light source 33 passes through the first lens 44 and travels parallel to the optical axis A of the first light source 33.

  In the present embodiment, the second light source 34 is a low beam light source. The second light source 34 is supported by a support member 43 fixed inside the case member 31. A reflection member 47 for reflecting light from the second light source 34 toward the second lens 45 is fixed to the outer peripheral portion of the support member 43. The reflection member 47 is formed to extend in an arc shape from the outer peripheral portion at the tip of the support member 43 toward the outer periphery of the second lens 45.

  The second light source 34 is different in irradiation area from the first light source 33. Specifically, the irradiation area of the second light source 34 is limited as compared with the first light source 33. Specifically, the irradiation area of the second light source 34 in a predetermined direction is limited by a second lens 45 that covers the second light source 34 from the front. In the present embodiment, the irradiation area above the second light source 34 is limited compared to other directions so that the irradiation area of the second light source 34 does not enter above the horizontal line H shown in FIGS. Has been.

  The second lens 45 has a convex lens part 45a and a planar lens part 45b. The convex lens portion 45 a is provided on the upper half side of the second lens 45 and the planar lens portion 45 b is provided on the lower half side of the second lens 45 with the two-dot chain line C shown in FIGS. The second light source 34 is disposed at a position facing the convex lens portion 45a. For this reason, the first light source 33 and the second light source 34 have different optical axis directions after passing through the corresponding lenses 44 and 45. Specifically, in the second light source 34, the direction of the optical axis after passing through the convex lens portion 45a is changed by the convex lens portion 45a. In the present embodiment, the optical axis B after passing through the convex lens portion 45a faces downward from the optical axis A. Of the light emitted from the second light source 34, the light passing through the convex lens portion 45a travels in parallel to the optical axis B after passing through the convex lens portion 45a. On the other hand, of the light emitted from the second light source 34, the light that passes through the planar lens portion 45 b travels in parallel to the optical axis A in the same manner as the light that passes through the first lens 44.

  The illuminance sensor 35 is electrically connected to the substrate 32. The illuminance sensor 35 detects the illuminance of light entering from the daylighting window 31 d and outputs an electrical signal to the light source control unit 36.

  The light source control unit 36 is electrically connected to the substrate 32. The light source control unit 36 controls the light amounts of the first light source 33 and the second light source 34. Specifically, the light source control unit 36 changes at least one of the light amount of the first light source 33 and the light amount of the second light source 34 based on the detection result of the illuminance sensor 35. Specifically, the light source control unit 36 increases the light amount of the first light source 33 and decreases or maintains the light amount of the second light source 34, and decreases the light amount of the second light source 34, In addition, in the case where the light amount of the first light source 33 is increased or maintained, the first light source 33 is maintained so that the first light source 33 and the second light source 34 are simultaneously turned on in at least one of the cases. And the second light source 34 is controlled.

  If the detected illuminance detected by the illuminance sensor 35 is equal to or lower than the predetermined illuminance, the light source control unit 36 in the present embodiment controls the first light source 33 to 100% light and the second light source 34 to 100%. The light amount is controlled to be smaller than the light amount and larger than 0%. On the other hand, when the detected illuminance detected by the illuminance sensor 35 exceeds the predetermined illuminance, the light source control unit 36 reduces the light amount of the first light source 33 to less than 100% and greater than 0%. And the light quantity of the second light source 34 is controlled to 100%.

  The light source control unit 36 reduces the light amount of the first light source 33 and increases or maintains the light amount of the second light source 34, increases the light amount of the second light source 34, and You may comprise so that the state which the 1st light source 33 and the 2nd light source 34 light simultaneously may be maintained in at least one case where the light quantity of one light source 33 is decreased or maintained. Further, the light source control unit 36 may always turn on the second light source 34 when the first light source 33 is turned on, or always keep the first light source 34 when the second light source 34 is turned on. The light source 33 may be turned on. Further, the first light source 33 and the second light source 34 may be turned off simultaneously. Further, the light source control unit 36 may always turn on the second light source 34 when the first light source 33 is turned on, or always turn on the first light source 34 when the second light source 34 is turned on. The light source 33 may be turned on.

  Next, an example of the control process of the light source control unit 36 of the light source control device 15 will be described with reference to FIG. When the bicycle 100 travels and the electric power generated by the generator 18 is supplied to the light source control device 15, the light source control unit 36 starts the light source control process.

  In step S1, the detected illuminance L1 detected by the illuminance sensor 35 is captured.

  In step S2, it is determined whether or not the detected illuminance L1 is equal to or less than a predetermined illuminance L. If the detected illuminance L1 is less than or equal to the predetermined illuminance L, the process proceeds to step S3. The predetermined illuminance L is, for example, 1000 lux.

  In step S3, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the first control. Here, the first control is control in which the first light source 33 that is a high beam light source is a main light source, and the second light source 34 that is a low beam light source is a sub light source. Specifically, the first control controls the light amount of the first light source 33 to 100%, reduces the light amount of the second light source 34 to less than 100%, and the light amount of the second light source 34. Is controlled to be less than 100% and greater than 0%.

  If the detected illuminance L1 is not less than or equal to the predetermined illuminance L in step S2, the process proceeds to step S4. In step S4, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the second control. Here, the second control is control in which the first light source 33 which is a high beam light source is a sub light source, and the second light source 34 which is a low beam light source is a main light source. Specifically, in the second control, the light amount of the first light source 33 is decreased from 100%, and the light amount of the first light source 33 is controlled to be less than 100% and greater than 0%. Then, the light quantity of the second light source 34 is controlled to 100%.

  In step S3 and step S4, the first light source 33 and the second light source 34 may be turned on simultaneously.

  After step S3 and step S4, the process returns to step S1, and the control process is repeatedly performed until the supply of power is stopped. For example, when the light source control unit 36 controls the first light source 33 and the second light source 34 with the first control, if the detected illuminance L1 exceeds a predetermined illuminance L, the light source control unit 36 performs the first control. To the second control. When switching from the first control to the second control, the light source control unit 36 reduces the light amount of the first light source 33 so that the light amount of the first light source 33 is less than 100% and greater than 0%. And the light quantity of the second light source 34 is increased to control the light quantity of the second light source 34 to 100%. Conversely, when the light source control unit 36 controls the first light source 33 and the second light source 34 by the second control, if the detected illuminance L1 becomes equal to or less than the predetermined illuminance L, the light source control unit 36 Switch from control to first control. When switching from the second control to the first control, the light source control unit 36 increases the light amount of the first light source 33 to control the light amount of the first light source 33 to 100%, and the second light source. The amount of light 34 is decreased to control the amount of light of the second light source 34 to be less than 100% and greater than 0%. When the supply of power to the light source control device 15 is stopped, the first light source 33 and the second light source 34 may be controlled to be turned off simultaneously.

  In the light source control process described above, the first light source 33 and the second light source with the light amount corresponding to one of the first control and the second control according to the detected illuminance L1 until the power supply is stopped. Each light quantity of the light source 34 is controlled. Then, when the light source controller 36 changes the light amount of the first light source 33 and the light amount of the second light source 34 according to the detected illuminance L1, the first light source 33 and the second light source 34 are turned on simultaneously. Maintain the state. Thereby, since the state in which the two light sources are turned on simultaneously is maintained, it is possible to suppress the appearance from being unbalanced.

Second Embodiment
As illustrated in FIG. 6, the light source control device 115 according to the second embodiment performs the first control and the second control by operating the operation unit 52 electrically connected to the light source control device 115 by wire or wireless. Switch. Other configurations are the same as those of the first embodiment. The operation unit 52 is, for example, a push button disposed on the handle 4 or a switch such as a toggle switch. In the present embodiment, a toggle procedure that can be switched between the first position and the second position is taken as an example of the operation unit 52, and the control procedure of the light source control unit 136 of the light source control device 115 will be described with reference to FIG.

  When the bicycle 100 travels and the electric power generated by the generator 18 is supplied to the light source control device 115, the light source control unit 136 starts the light source control process.

  In step S11, the state of the operation unit 52 is captured. That is, the information about whether the operation unit 52 is in the first position or the second position is captured.

  In step S12, it is determined whether or not the operation unit 52 is in the first position. If it is determined that the operation unit 52 is in the first position, the process proceeds to step S13.

  In step S13, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the first control.

  If it is determined in step S12 that the operation unit 52 is not in the first position, the process proceeds to step S14. In other words, when it is determined that the operation unit 52 is in the second position, the process proceeds to step S14.

  In step S14, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the second control.

  After step S13 and step S14, the process returns to step S11, and the control process is repeatedly performed until the supply of power is stopped.

  Also in this embodiment, until the supply of power is stopped, the first light source 33 and the second light source with the light amount corresponding to either the first control or the second control according to the operation of the operation unit 52. Each light quantity of the light source 34 is controlled. Therefore, when the light source control unit 36 changes the light amount of the first light source 33 and the light amount of the second light source 34 according to the operation of the operation unit 52, the first light source 33 and the second light source 34 are simultaneously The lighting state is maintained.

<Third Embodiment>
As shown in FIG. 8, the light source control device 215 of the third embodiment switches between the first control and the second control based on the detection result of the speed sensor 54 electrically connected to the light source control unit 236. Do. The speed sensor 54 detects the traveling speed of the bicycle 100 and outputs the detection result to the light source control unit 236. The speed sensor 54 is, for example, a hall element attached to the front fork 2a of the bicycle 100, and detects the rotational speed of the bicycle 100 by a magnet (not shown) attached to the spoke of the front wheel 6.

  Next, a control procedure of the light source control unit 236 of the light source control device 215 of the present embodiment will be described with reference to FIG. When the bicycle 100 travels and the electric power generated by the generator 18 is supplied to the light source control device 215, the light source control unit 236 starts the light source control process.

  In step S21, the detected speed V1 detected by the speed sensor 54 is captured.

  In step S22, it is determined whether or not the detected speed V1 is equal to or higher than a predetermined speed V. If the detected speed V1 is equal to or higher than the predetermined speed V, the process proceeds to step S23. The predetermined speed V is, for example, 20 km / h.

  In step S23, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the first control. If the detected speed V1 is not equal to or higher than the predetermined speed V in step S22, the process proceeds to step S24.

  In step S24, the first light source 33 and the second light source 34 are turned on with a light amount corresponding to the second control.

  After step S23 and step S24, the process returns to step S21, and the control process is repeatedly performed until the supply of power is stopped.

  Also in this embodiment, when changing the light quantity of the 1st light source 33 and the light quantity of the 2nd light source 34 according to detection speed V1, the 1st light source 33 and the 2nd light source 34 are lighted simultaneously. State is maintained.

<Other embodiments>
As mentioned above, although embodiment of this invention was described, a specific structure is not restricted to these embodiment, It can change in the range which does not deviate from the summary of invention.

  (A) Although the light emitting diode is exemplified as the first light source 33 and the second light source 34 in the embodiment, a light source such as a light bulb or a fluorescent lamp may be used.

  (B) In the embodiment described above, the first light source 33 and the second light source 34 may be configured by an aggregate of a plurality of light sources. In this case, the light source control units 36, 136, and 236 may control the light amount of the light source by changing the number of lighting of the plurality of light source assemblies.

  (C) In the above-described embodiment, the light source control units 36, 136, and 236 control the first light source 33 and the second light source 34 so that the light amount corresponds to the first control and the second control. However, control of the light quantity of the 1st light source 33 and the 2nd light source 34 is not limited to this. For example, at least one of the light amount of the first light source 33 and the light amount of the second light source 34 may be changed based on the detection result of the illuminance sensor 35 or the speed sensor 54. Further, at least one of the light amount of the first light source 33 and the light amount of the second light source 34 may be changed based on the operation of the operation unit 52. Furthermore, the light quantity of at least one of the first light source 33 and the second light source 34 may be changed stepwise in proportion to the illuminance of the illuminance sensor 35 or the speed of the speed sensor 54. In this case, a step in which the first light source 33 and the second light source 34 are not turned on may be provided. In addition, when the light amount of the first light source 33 is increased or decreased, the light amount of the second light source 34 may be maintained, and when the light amount of the second light source 34 is increased or decreased, the first light source 33 is maintained. The amount of light from the light source 33 may be maintained. In any case, the light source controllers 36, 136, and 236 turn on the first light source 33 and the second light source 34 simultaneously when changing the amount of light of one of the first light source 33 and the second light source 34. Any configuration that maintains the current state may be used.

  (D) In the embodiment, the light source control device may be configured by combining at least two of the illuminance sensor 35, the operation unit 52, and the speed sensor 54. For example, an operation unit capable of selecting the control method of the light source control device may be provided so that the rider can freely select the control method according to the situation.

  (E) In the embodiment, the power generated by the generator 18 is supplied to the light source control devices 15, 115, and 125. However, the power is not limited to the generator 18. For example, you may comprise so that electric power may be supplied to the light source control apparatus 15,115,125 from a dry battery, a storage battery, etc. FIG.

  (F) In the above embodiment, the headlamp 16 is fixed to the lamp stay 22 extending forward from the front fork 2a of the bicycle 100 via the bracket 24. However, the headlamp 16 is provided with a fixing portion such as a clamp. The headlamp 16 may be arranged at an arbitrary position such as the handle 4.

  (G) In the embodiment, the optical axis A of the first light source 33 is directed above the optical axis B of the second light source 34 when viewed from the side. The direction of is not limited to this.

  (H) In the above embodiment, the first light source 33 and the second light source 34 are arranged one above the other. However, the first light source 33 and the second light source 34 are orthogonal to each other in a predetermined direction. They may be arranged side by side. The predetermined direction is, for example, a direction orthogonal to the direction in which the irradiation area of the second light source 34 is limited (upward in this embodiment). Specifically, as shown in FIGS. 11 and 12, the first light source 33 and the second light source 34 may be arranged side by side in the left-right direction. FIG. 11 is a side view of a bicycle 300 in which an embodiment of the present invention is adopted, and FIG. 12 is a view of the headlamp 316 as viewed from the front of the bicycle 300.

15, 115, 225 Light source control device 16 Headlamp (an example of a bicycle lighting device)
32 Substrate 32a First mounting surface 32b Second mounting surface 33 First light source 34 Second light source 35 Illuminance sensor 36, 136, 236 Light source control unit 52 Operation unit 54 Speed sensor 100 Bicycle A Optical axis B Optical axis

Claims (20)

A light source control device provided in a bicycle,
A first light source;
A second light source;
Controlling the amount of light of the first light source and the amount of light of the second light source;
Increasing the amount of light from the first light source and decreasing or maintaining the amount of light from the second light source; and decreasing the amount of light from the second light source and increasing the amount of light from the first light source Or a light source controller that maintains a state in which the first light source and the second light source are turned on at the same time in at least one of the cases;
With
Light source control device. The light source control unit decreases the light amount of the first light source, increases or maintains the light amount of the second light source, increases the light amount of the second light source, and the first light source. Maintaining the state in which the first light source and the second light source are turned on simultaneously in at least one of the cases of reducing or maintaining the light amount of the light source;
The light source control device according to claim 1. The light source control unit always turns on the second light source when the first light source is turned on;
The light source control device according to claim 1. The light source control unit simultaneously turns on the first light source and the second light source;
The light source control device according to claim 1. The light source control unit simultaneously turns off the first light source and the second light source;
The light source control device according to any one of claims 1 to 4. The first light source and the second light source have different optical axis directions,
The light source control device according to claim 1. A substrate on which the first light source and the second light source are provided;
The direction in which the first mounting surface on which the first light source is mounted on the substrate and the second mounting surface on which the second light source is mounted is the same.
The light source control device according to any one of claims 1 to 6. The first light source is a high beam light source;
The light source control device according to claim 1. The second light source is a low beam light source;
The light source control device according to claim 1. The light source control device according to any one of claims 1 to 9, wherein the first light source has a power consumption larger than that of the second light source. The irradiation area of the first light source and the irradiation area of the second light source are different from each other.
The light source control device according to claim 1. The irradiation area of the second light source is limited as compared with the first light source.
The light source control device according to claim 1. The second light source has a limited irradiation area in a predetermined direction compared to the first light source, compared to other directions.
The light source control device according to any one of claims 1 to 12. The first light source and the second light source are arranged in the predetermined direction.
The light source control device according to claim 13. The first light source and the second light source are arranged in a direction perpendicular to the predetermined direction,
The light source control device according to claim 13 or 14.   The light source control device according to claim 13, wherein the predetermined direction is upward. It further includes an illuminance sensor that detects ambient illuminance,
The light source control unit changes a light amount of at least one of a light amount of the first light source and a light amount of the second light source based on a detection result of the illuminance sensor;
The light source control device according to claim 1. It further includes an operation unit,
The light source control unit changes a light amount of at least one of a light amount of the first light source and a light amount of the second light source based on an operation of the operation unit;
The light source control device according to claim 1. A speed sensor for detecting the speed of the bicycle;
The light source control unit changes at least one of the light amount of the first light source and the light amount of the second light source based on a detection result of the speed sensor.
The light source control device according to claim 1. The light source control device according to any one of claims 1 to 19, comprising:
Bicycle lighting device.

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