WO2020031880A1 - Unité source de lumière et lampe - Google Patents

Unité source de lumière et lampe Download PDF

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Publication number
WO2020031880A1
WO2020031880A1 PCT/JP2019/030431 JP2019030431W WO2020031880A1 WO 2020031880 A1 WO2020031880 A1 WO 2020031880A1 JP 2019030431 W JP2019030431 W JP 2019030431W WO 2020031880 A1 WO2020031880 A1 WO 2020031880A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
light sources
arrangement base
light source
arrangement
Prior art date
Application number
PCT/JP2019/030431
Other languages
English (en)
Japanese (ja)
Inventor
快之 中西
Original Assignee
株式会社小糸製作所
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 株式会社小糸製作所 filed Critical 株式会社小糸製作所
Priority to JP2020535724A priority Critical patent/JPWO2020031880A1/ja
Publication of WO2020031880A1 publication Critical patent/WO2020031880A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/143—Light emitting diodes [LED] the main emission direction of the LED being parallel to the optical axis of the illuminating device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/147—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device
    • F21S41/148—Light emitting diodes [LED] the main emission direction of the LED being angled to the optical axis of the illuminating device the main emission direction of the LED being perpendicular to the optical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
    • F21S41/14—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of light source
    • F21S41/141—Light emitting diodes [LED]
    • F21S41/151—Light emitting diodes [LED] arranged in one or more lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/20—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by refractors, transparent cover plates, light guides or filters
    • F21S41/25—Projection lenses
    • F21S41/255—Lenses with a front view of circular or truncated circular outline
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/657—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by moving light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
    • F21S41/60—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution
    • F21S41/65—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources
    • F21S41/663—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by a variable light distribution by acting on light sources by switching light sources

Definitions

  • the present invention relates to a technical field of a light source unit in which a plurality of light sources are arranged on a rotatable arrangement base and a lamp including the same.
  • Some lamps such as vehicle lamps, include a light source unit arranged on a base located at a central portion of a fan and configured to rotate together with the fan (for example, see Patent Document 1). .
  • the light source is turned on when the fan rotates, and a predetermined light distribution pattern is formed by light emitted from the light source. At this time, heat generated due to the lighting of the light source is released through the base functioning as a heat sink to perform cooling, and the light source is also cooled by airflow generated by rotation of the fan.
  • the light irradiation mode be diversified even in a lamp in which the light source is rotated together with the base.
  • a light source unit includes an arrangement base rotatable around a predetermined rotation axis as a fulcrum, and a plurality of light sources arranged on the arrangement base, wherein the plurality of light sources are arranged around the arrangement base.
  • the plurality of light sources can be individually turned on / off.
  • the lighting is performed when the plurality of light sources are moved to predetermined positions by rotation of the arrangement base.
  • the light sources are cooled at positions other than the predetermined positions.
  • the plurality of light sources be positioned at equal intervals.
  • the plurality of light sources be arranged on an outer peripheral surface of the arrangement base.
  • a lamp according to the present invention includes an arrangement base rotatable around a predetermined rotation axis, a plurality of light sources arranged on the arrangement base, and a light controlling light emitted from the plurality of light sources.
  • a control member wherein the plurality of light sources are arranged at a distance from each other in a circumferential direction of the arrangement base, and the light sources can be individually turned on / off.
  • the light control member performs control so as to reduce the difference between the length of the inner arc and the length of the outer arc of the light distribution pattern.
  • each light source is controlled according to the position of each light source during rotation of the arrangement base. Can be switched between turning on and off, and diversification of light irradiation modes can be achieved.
  • FIG. 2 shows an embodiment of the light source unit and the lamp according to the present invention together with FIG. 2 to FIG. 8, and this figure is a sectional view of a vehicle lamp. It is a top view showing the state where the light source was arranged on the arrangement base. It is a top view showing the state where a plurality of light sources are located in the range which is turned on.
  • FIGS. 5 and 6 show an example of an irradiation state in which light-on / off control is performed on a light source within a lightable range
  • FIG. 5 is a side view showing an example of a lamp unit. It is a front view showing the state where three light sources are located in the range where lighting is possible. It is a figure showing an example of a light distribution pattern.
  • FIG. 4 is a perspective view illustrating an example in which a light source is arranged on an outer peripheral surface.
  • FIG. 9 is a perspective view showing an example in which a light source is arranged on an outer peripheral surface of an arrangement base formed in a poly
  • the lamp of the present invention is applied to a vehicle headlamp.
  • the lamp of the present invention can be applied to various vehicle lamps other than the vehicle headlamp, and can be applied to various lamps such as lighting devices used for vehicles other than the vehicle.
  • the light source unit of the present invention can be applied to various light source units used in various lamps including a vehicle lamp.
  • the lighting fixtures 1 are respectively attached to the left and right ends of the front end of the vehicle body.
  • the lamp 1 includes a housing 2 having an opening at the front end and a cover 3 attached to the housing 2 with the opening of the housing 2 closed (see FIG. 1).
  • the housing 2 and the cover 3 constitute a lamp outer case 4.
  • the internal space of the lamp outer housing 4 is formed as an arrangement space 5.
  • the lamp unit 6 is arranged in the arrangement space 5.
  • the lamp unit 6 has a base holder 7, a projection lens 8, a reflector 9, a shade 10, and a light source unit 11.
  • the base holder 7 has a plate-like base portion 7a facing up and down, a front mounting portion 7b protruding upward from a front end portion of the base portion 7a, and a rear mounting portion 7c protruding upward from a rear end portion of the base portion 7a. And The base portion 7 a of the base holder 7 is attached to, for example, a lower surface portion of the housing 2.
  • the projection lens 8 is, for example, formed in a substantially hemispherical shape that is convex forward, and is attached to the front attachment portion 7 b of the base holder 7.
  • the projection lens 8 has a function of controlling the incident light into parallel light or condensed light.
  • the reflector 9 is mounted on the rear mounting portion 7c of the base holder 7.
  • the reflector 9 has an inner surface formed as a reflection surface 9a, and has a function of reflecting light toward the projection lens 8 on the reflection surface 9a.
  • the shade 10 is attached to the base 7a of the base holder 7.
  • the shade 10 has a function of blocking a part of the light generated in the arrangement space 5 to prevent the light from entering the projection lens 8, and is disposed at a position that covers a substantially front half of the light source unit 11 from above. .
  • the projection lens 8 has a function of controlling incident light into parallel light or light to be condensed
  • the reflector 9 has a function of reflecting light toward the projection lens 8
  • the shade 10 has The projection lens 8, the reflector 9, and the shade 10 function as a light control member for controlling light.
  • the light source unit 11 has a drive motor 12 functioning as a drive source, an arrangement base 13 rotated by the drive motor 12, and a plurality of light sources 14, 14,...
  • the drive motor 12 is attached to the base portion 7a of the base holder 7, and its axial direction is set in the vertical direction.
  • the arrangement base 13 is formed, for example, in a disk shape or a flat column shape, and has a central portion connected to the drive motor 12 in a state where the axial direction is up and down. Therefore, the arrangement base 13 is a rotation axis P whose center axis is a rotation fulcrum.
  • the upper surface of the arrangement base 13 is formed as a light source arrangement surface 13a.
  • the arrangement base 13 is rotated by the drive motor 12 about the rotation axis P as a fulcrum.
  • the arrangement base 13 is formed of, for example, a metal material having a high heat dissipation property, and functions as a heat sink in addition to the function as a rotating body.
  • the light sources 14, 14,... are arranged on the outer periphery of the light source arrangement surface 13a of the arrangement base 13 so as to be circumferentially separated from each other (see FIG. 2).
  • the light sources 14, 14,... are arranged on the light source arrangement surface 13a via a substrate (not shown), and are positioned, for example, at equal intervals. Since the light source arrangement surface 13a of the arrangement base 13 is formed in a planar shape, the arrangement of the light sources 14, 14, ... with respect to the arrangement base 13 can be easily performed.
  • the number of the light sources 14 arranged on the arrangement base 13 is arbitrary as long as it is plural, and the intervals may not be equal but may be irregular.
  • the light sources 14, 14,... Can be individually turned on and off. Therefore, the power supply state of each light source 14 is turned on and off by a control circuit (not shown).
  • a control circuit (not shown).
  • a contact portion (not shown) that is electrically connected is slidably positioned on the lower surface of the arrangement base 13. When the arrangement base 13 is rotated, the contact portion slides on the lower surface of the arrangement base 13 and the contact portion is connected to the terminal portion, so that the light source 14 corresponding to the connected terminal portion is energized and turned on.
  • the contact portion is separated from the terminal portion, the power supply to the light source 14, which has been turned on, is released, and the light source 14 is turned off.
  • the light sources 14, 14,... Can be individually turned on and off, and in the light source unit 11, the light sources 14, 14,.
  • the light sources 14, 14,... Are turned on, and the light sources 14, 14,.
  • Are turned on when the light sources 14, 14,... Are moved to the range A by the rotation of the arrangement base 13, and the light sources 14, 14,. Lighting is performed during the movement to A2.
  • the light sources 14, 14,... are turned on in the range A when the arrangement base 13 rotates, so that the light sources 14, 14 sequentially pass through the range A with the rotation of the arrangement base 13. ,... Are continuously lit, and it is recognized that the light source 14 existing in the range A is always lit.
  • the light emitted from the light source 14 is directed to the reflector 9, reflected by the reflection surface 9 a of the reflector 9 and is incident on the projection lens 8, the direction is controlled by the projection lens 8, transmitted through the cover 3, and emitted forward. You.
  • the size of the range A in the circumferential direction may be a size in which at least one of the light sources 14 is entirely located. It may be the size to be located (see FIG. 3).
  • the size of the range A in the circumferential direction can be set based on the number of rotations of the arrangement base 13 and the number of light sources 14, 14,. Desirably, it is more preferable to set in consideration of a cooling time required for the light source 14 to enhance the cooling performance, that is, a light-off time of the light source 14 for one rotation of the arrangement base 13.
  • the range A is a constant range in the circumferential direction
  • the light distribution pattern formed by the light emitted from the light sources 14, 14,... Is likely to be horizontally long, and in the lamp 1, for example, The light emitted from the light sources 14, 14, ... can easily form a high beam light distribution pattern.
  • the light distribution pattern formed by the light emitted from the light sources 14, 14,... Is not limited to the high beam light distribution pattern, and may be a low beam light distribution pattern. It may be a light distribution pattern of daytime illumination such as when used as a light source, or may be various light distribution patterns when used as a marker light.
  • the lighting is performed when the plurality of light sources 14, 14,... Are moved to a predetermined position (range A) by rotation of the arrangement base 13.
  • the plurality of light sources 14, 14, ... are turned off at positions other than the predetermined positions, so that the light sources 14, 14, ... are cooled at positions other than the predetermined positions, and the light sources 14, 14, ... .. A favorable driving state can be ensured.
  • the plurality of light sources 14, 14, since the plurality of light sources 14, 14,. It is possible to do. Therefore, it is possible to secure a high-luminance irradiation state using inexpensive light sources 14, 14,..., And to secure a high-luminance irradiation state without increasing the manufacturing cost of the lamp 1. Can be.
  • the turning-off time of the light sources 14, 14, can be maximized, and a stable driving state and a long life of the light sources 14, 14,... Can be achieved while ensuring high luminance.
  • An example of such an irradiation state is to detect a preceding vehicle, an oncoming vehicle, a pedestrian, etc., in combination with a sensor, and turn on and off the light so that these detected points are not partially irradiated with light. This is an example of controlling.
  • a lamp unit 6A having no reflector 9 is used (see FIG. 4).
  • the arrangement base 13 and the drive motor 12 are arranged in a state where the axial direction is set to the front-back direction, and the light emitted from the light sources 14, 14, ... is controlled by the projection lens 8 and directed forward. Irradiated.
  • the turning on / off control of this example can be performed by using the lamp unit 6 which reflects light by the reflector 9 and is controlled by the projection lens 8 and irradiated forward.
  • the light sources 14, 14,... Can be individually turned on and off, and the light sources 14, 14,. .. Can be turned on, and the light sources 14, 14,... Are turned off in other ranges (see FIG. 5).
  • the size of the range B in the circumferential direction is a size in which the plurality of light sources 14, for example, the entire three light sources 14, 14, 14 are located, and is a range from the start end B1 to the end B2.
  • the range B is, for example, 30 degrees, and the light distribution pattern formed by the light emitted from the light sources 14, 14, ... has a horizontally long shape and is emitted from the light sources 14, 14, ....
  • the light forms a high beam light distribution pattern.
  • the light distribution pattern illustrated in FIG. 6 is a light distribution pattern obtained by combining a light distribution pattern H of a high beam and a light distribution pattern L of a low beam in a state where the light is turned off in a range Bx.
  • the unlit part is the dark part C.
  • the dark portion C does not irradiate light to the occupant of the preceding vehicle, the occupant of the oncoming vehicle, the pedestrian, and the like, thereby preventing the generation of dazzling light for these occupants and pedestrians.
  • control circuit may turn off the light sources 14, 14,... In a plurality of ranges Bx corresponding to a plurality of detection points in the range B.
  • the light distribution pattern L of the low beam is formed by, for example, light emitted from another low beam lamp unit (not shown) arranged adjacent to the lamp unit 6A.
  • the light controlled by the projection lens 8 functioning as the light control member enables the formation of a horizontally long light distribution pattern. Therefore, by controlling the light to be turned off in a certain range in the rotation direction of the arrangement base 13, a part of the horizontally long light distribution pattern can be formed as the dark portion C, and light irradiation is partially performed in the irradiation range. It is possible to form a light irradiation state that is not affected.
  • the outer (upper) arc a and the inner (lower) arc b are formed into a gentle arc shape as the light distribution pattern H, and the length Pa of the arc a and the length Pb of the arc b are changed.
  • the projection lens 8 functioning as a light control member may be controlled so that the difference between the length Pa of the arc a and the length Pb of the arc b is reduced.
  • the light distribution pattern H is formed, for example, as a horizontally long rectangular or substantially rectangular light distribution pattern H ′ as shown in the upper right of FIG.
  • a light distribution pattern having an appropriate shape as a lamp can be formed.
  • the plurality of light sources 14, 14,... are arranged in the circumferential direction of the arrangement base 13, and the plurality of light sources 14, 14,. Lighting control can be individually performed.
  • the light sources 14, 14,... Arranged separately in the circumferential direction of the arrangement base 13 can be individually turned on and off, the light sources 14 can be controlled when the arrangement base 13 rotates. Can be switched on and off according to the positions of the light sources 14, 14,..., And the light irradiation mode can be diversified.
  • the light sources 14, 14,... are turned off so that the light-off time can be set as the cooling time, and the light sources 14, 14,. This makes it possible to improve the cooling performance and diversify the light irradiation mode.
  • the plurality of light sources 14, 14,... are positioned at equal intervals, so that the light-on / off control for the light sources 14, 14,. Regardless of the position, it is possible to take into account only the rotation speed of the arrangement base 13, and it is possible to facilitate and simplify the lighting control.
  • the surface of the arrangement base 13 that faces in the axial direction is formed as the light source arrangement surface 13a, but, for example, the outer peripheral surface of the arrangement base 13 is formed as the light source arrangement surface 13b, It is also possible to arrange the light sources 14, 14, ... in the circumferential direction apart from each other at 13b (see Fig. 7).
  • the light sources 14, 14,... are arranged on the outer peripheral surface of the arrangement base 13, the light sources 14, 14,.
  • the number of light sources 14, 14,... Arranged on the arrangement base 13 can be increased.
  • the arrangement base 13 in a polygonal shape and arrange the light sources 14, 14,... reference).
  • the arrangement base 13 By forming the arrangement base 13 in a polygonal shape in this manner, it is possible to arrange the light sources 14, 14,... On a plane, respectively, and the light sources 14, 14,. The arrangement can be performed easily.

Abstract

Selon la présente invention, une diversification des modes d'émission de lumière est obtenue. La présente invention comprend : une base d'agencement (13) qui peut tourner autour d'un axe de rotation (P) en tant que pivot ; et une pluralité de sources de lumière (14) disposées sur la base d'agencement, la pluralité de sources de lumière étant espacées les unes des autres dans la direction circonférentielle de la base d'agencement, et une commande d'allumage/extinction pouvant être effectuée individuellement pour la pluralité de sources de lumière. En conséquence, du fait que la commande d'allumage/extinction peut être effectuée individuellement pour la pluralité de sources de lumière espacées les unes des autres dans la direction circonférentielle de la base d'agencement, l'allumage et l'extinction de chaque source de lumière peut être commandé en fonction de la position de la source de lumière lorsque la base d'agencement tourne, ce qui permet d'obtenir la diversification des modes d'émission de lumière.
PCT/JP2019/030431 2018-08-09 2019-08-02 Unité source de lumière et lampe WO2020031880A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2020535724A JPWO2020031880A1 (ja) 2018-08-09 2019-08-02 光源ユニット及び灯具

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-150453 2018-08-09
JP2018150453 2018-08-09

Publications (1)

Publication Number Publication Date
WO2020031880A1 true WO2020031880A1 (fr) 2020-02-13

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ID=69413717

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Application Number Title Priority Date Filing Date
PCT/JP2019/030431 WO2020031880A1 (fr) 2018-08-09 2019-08-02 Unité source de lumière et lampe

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JP (1) JPWO2020031880A1 (fr)
WO (1) WO2020031880A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040125601A1 (en) * 2002-01-23 2004-07-01 Coates Nicholas Richard Illumination apparatus
JP2015509653A (ja) * 2012-03-08 2015-03-30 コーニンクレッカ フィリップス エヌ ヴェ 可動光源を有する制御可能な高輝度照明
JP2018063891A (ja) * 2016-10-13 2018-04-19 株式会社小糸製作所 光源ユニットおよび灯具

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040125601A1 (en) * 2002-01-23 2004-07-01 Coates Nicholas Richard Illumination apparatus
JP2015509653A (ja) * 2012-03-08 2015-03-30 コーニンクレッカ フィリップス エヌ ヴェ 可動光源を有する制御可能な高輝度照明
JP2018063891A (ja) * 2016-10-13 2018-04-19 株式会社小糸製作所 光源ユニットおよび灯具

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