JP6235371B2 - Aiming device for light source unit for multiple lights - Google Patents

Description

  The present invention relates to an aiming device that adjusts the optical axes of a plurality of light source units for multiple lamps.

  A vehicle lamp such as a headlamp includes a multi-lamp type that includes a plurality of light source units housed in a lamp chamber defined by a housing and an outer lens that covers an opening of the housing (for example, Patent Document 1). reference). Moreover, in such a multi-lamp type vehicle lamp, an aiming device (optical axis adjusting device) for adjusting the irradiation direction is proposed in Patent Document 2 and the like. Here, an example of an aiming device that performs optical axis adjustment of a plurality of light source units of a multiple lamp type will be described with reference to FIGS.

  5 is a front view of a multi-lamp light source unit equipped with a conventional aiming device, FIG. 6 is a top view of the multi-lamp light source unit, and FIG. 7 is a side view of the multi-lamp light source unit. The first light source unit 101 and the second light source unit 102 are arranged offset in the vertical and horizontal directions, and both are connected to each other by a connecting rod 108.

  Here, the first light source unit 101 and the second light source unit 102 are vertically and horizontally centered around a horizontal up / down aiming rotation axis X passing through an aiming center P, which is a pivot point, and a vertical left / right aiming rotation axis Y, respectively. The optical axis (light irradiation direction) is adjusted by rotating in the direction. That is, for example, when the vertical aiming operation unit 107 is operated, the first light source unit 101 and the second light source unit 102 rotate up and down around the vertical aiming axis X and the optical axis is adjusted in the vertical direction. When the operation unit 106 is operated, the first light source unit 101 and the second light source unit 102 are rotated left and right around the rotation axis Y at the left and right aiming, and the optical axis is adjusted in the left and right direction.

JP 2013-004475 A Japanese Patent No. 4345517

  However, in the conventional aiming apparatus shown in FIGS. 5 to 7, the first light source unit 101 and the second light source unit 102 that are offset in the vertical and horizontal directions are shared by the common vertical axis X and the horizontal aiming axis. Since they rotate integrally in the vertical and horizontal directions around the rotation axis Y, there is a difference in the amount of movement of the movement trajectories of the first light source unit 101 and the second light source unit 102. Specifically, the movement amount of the movement trajectory in the vertical and horizontal directions of the first light source unit 101 and the second light source unit 102 depends on the distance between the vertical axis rotation axis X and the horizontal aiming rotation axis Y. The longer the is, the greater the amount of movement. Accordingly, as indicated by a broken line in FIG. 7, the vertical movement amount of the second light source unit 102 having a long distance from the rotation axis X during vertical aiming is larger than that of the first light source unit 101. Further, as indicated by a broken line in FIG. 6, the amount of movement in the left-right direction of the first light source unit 101 having a long distance from the rotation axis Y during left-right aiming is larger than that of the second light source unit 102.

  As described above, when there is a difference in the movement amount of the movement trajectory in the vertical and horizontal directions between the first light source unit 101 and the second light source unit 102, the first light source unit 101, the second light source unit 102, and the peripheral components. There arises a problem that the gaps between them cannot be kept uniform.

  The present invention has been made in view of the above problems, and the object of the process is to keep the gaps between the light source units and peripheral components uniform by matching the movement amount of the movement trajectory during aiming for all the light source units. Another object of the present invention is to provide an aiming device for a multi-light source unit.

In order to achieve the above object, according to the first aspect of the present invention, a plurality of light source units for multiple lamps arranged offset in the vertical and horizontal directions are operated by operating one vertical aiming operation unit and one left and right aiming operation unit. In the aiming device of the light source unit for multiple lamps, which is rotated in the vertical direction or the horizontal direction, and the optical axis adjustment in the vertical direction or the horizontal direction is performed simultaneously for all the light source units.
Each of the light source units has a vertical aiming rotation axis and a left and right aiming rotation axis set individually, and two adjacent light source units are connected by a fine movable connecting rod.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, the horizontal axis passing through the optical axis of each of the light source units is used as the rotation axis at the time of vertical aiming of each light source unit.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the vertical axis positioned at an approximately equal distance from the optical axis for each light source unit is a left and right aiming rotation axis.

  According to the first aspect of the present invention, since the vertical axis and the horizontal aiming rotation axis are individually set for each light source unit, there is a difference in the movement amount of the vertical and horizontal movement trajectories between the light source units. It does not occur, and the gap between each light source unit and peripheral parts can be kept uniform. In addition, since two adjacent light source units are connected to each other by a fine movable connecting rod, the phase difference of each light source unit due to the individual setting of the rotation axis during vertical aiming and the rotation axis during left and right aiming is absorbed. On the other hand, all the light source units can be simultaneously rotated in the vertical and horizontal directions by the operation of each one vertical aiming operation unit and left and right aiming operation unit, and their optical axes can be adjusted efficiently and easily.

  According to the second aspect of the present invention, since the horizontal axis passing through the optical axis of each light source unit is the rotational axis during vertical aiming of each light source unit, there is no difference in the amount of movement of the vertical movement trajectory of each light source unit. The amount of vertical movement of all the light source units is equal.

  According to the second aspect of the present invention, since the vertical axis positioned substantially equidistant from the optical axis for each light source unit is used as the rotation axis during left and right aiming, there is almost no difference in the amount of movement of the movement trajectory in the left and right direction of each light source unit. It does not occur, and the amount of movement in the vertical direction of all the light source units is substantially equal.

It is a front view of the light source unit for multiple lights provided with the aiming apparatus which concerns on this invention. It is a top view of the light source unit for multiple lights provided with the aiming apparatus which concerns on this invention. It is a side view of the light source unit for multiple lights provided with the aiming apparatus which concerns on this invention. It is AA stopper sectional drawing of FIG. It is a front view of the light source unit for multiple lights provided with the conventional aiming apparatus. It is a top view of the light source unit for multiple lights provided with the conventional aiming apparatus. It is a side view of the light source unit for multiple lights provided with the conventional aiming apparatus.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 is a front view of a multi-lamp light source unit including the aiming device according to the present invention, FIG. 2 is a top view of the multi-lamp light source unit, FIG. 3 is a side view of the multi-lamp light source unit, and FIG. It is AA sectional view taken on the line of 1. FIG.

  The aiming device according to the present embodiment is for adjusting the optical axes (irradiation directions) of the two first light source units 1 and the second light source unit 2, and as shown in FIGS. The 1st light source unit 1 and the 2nd light source unit 2 are arrange | positioned by offsetting up and down, right and left, and the front-back direction. Here, as shown in FIG. 4, the second light source unit 2 has a substrate 4 on which an LED (not shown) as a light source is mounted on the front surface of the heat sink 3 and is integrally formed in a rectangular shape in front view with a transparent resin. The molded optical lens 5 is fixed so as to cover the LED from the front side. The other first light source unit 1 is configured in the same manner as the second light source unit 2.

  Thus, in the aiming device according to the present embodiment, the first light source unit 1 and the second light source unit 2 are respectively set with the vertical aiming rotation axes X1 and X2 and the left and right aiming rotation axes Y1 and Y2. ing. Specifically, in the first light source unit 1, the horizontal axis passing through the optical axis O1 is set as the rotation axis X1 during vertical aiming, and the vertical axis at a position away from the optical axis O1 by a predetermined distance to the left in FIG. Is set as the rotation axis Y1 during left and right aiming. The intersection of the rotation axis X1 during vertical aiming and the rotation axis Y1 during left and right aiming is an aiming center P1 as a pivot point, and a left and right aiming operation unit 6 configured by an adjustment screw or the like on the rotation axis X1 during vertical aiming. Is provided.

  Further, in the second light source unit 2, the horizontal axis passing through the optical axis O2 is set as the rotation axis X2 during vertical aiming, and a predetermined distance from the optical axis O2 to the left in FIG. The vertical axis at a position separated by a distance substantially equal to the distance from the optical axis O1 of the rotation axis Y1 is set as the rotation axis Y2 at the time of left and right aiming. An intersection of the rotation axis X2 during vertical aiming and the rotation axis Y2 during left and right aiming is set as an aiming center P2 as a pivot point, and a vertical aiming operation unit 7 configured by an adjustment screw or the like on the rotation axis Y2 during left and right aiming. Is provided.

  In the present embodiment, the first light source unit 1 and the second light source unit 2 are connected by a fine movable connecting rod 8 that can be relatively displaced by a minute amount. Here, the fine movable connecting rod 8 includes a rod 8a extending downward from a side end portion of the first light source unit 1 and a rod 8b provided at a side end portion of the second light source unit 2 as shown in FIG. The rod 8c and a plurality of pivot shafts 9 are connected to each other.

  Thus, in the aiming apparatus according to the present invention, when the vertical optical axis adjustment of the first light source unit 1 and the second light source unit 2 is performed, an operation of turning an adjustment screw (not shown) of the vertical aiming operation unit 7 is performed. The first light source unit 1 and the second light source unit 2 connected to each other by the fine movable connecting rod 8 rotate up and down around the rotation axes X1 and X2 at the time of vertical aiming set separately. The vertical optical axis adjustment of the first light source unit 1 and the second light source unit 2 is performed. In this case, since the first light source unit 1 and the second light source unit 2 have the horizontal axes passing through the optical axes O1 and O2 as the rotation axes X1 and X2 during the vertical aiming, the first light source unit 1 and the second light source unit 2 There is no difference in the amount of movement of the movement path of the light source unit 2 in the vertical direction, and both are rotated by the same angle in the vertical direction to adjust the optical axis in the vertical direction.

  Further, when adjusting the optical axis in the left-right direction of the first light source unit 1 and the second light source unit 2, if an operation of turning an adjustment screw (not shown) of the left and right aiming operation unit 6 is performed, the fine movable connecting rod 8 is used. Since the first light source unit 1 and the second light source unit 2 connected to each other rotate left and right around the rotation axes Y1 and Y2 at the left and right aiming separately set, respectively, the first light source unit 1 and the second light source The optical axis of the unit 2 in the left-right direction is adjusted. In this case, the first light source unit 1 and the second light source unit 2 are set so that the vertical axes positioned substantially equidistant from the respective optical axes O1 and O2 are the left and right aiming rotation axes Y1 and Y2. There is almost no difference in the amount of movement of the left and right movement trajectories of the second light source unit 2 and both are rotated by substantially the same angle in the left and right direction to adjust the optical axis in the left and right direction.

  As described above, according to the aiming device of the present invention, the vertical axis rotation axes X1 and X2 and the horizontal aiming rotation axis Y1 and Y2 are set individually for the first light source unit 1 and the second light source unit 2, respectively. There is no difference in the amount of movement of the movement trajectory in the vertical and horizontal directions between the first light source unit 1 and the second light source unit 2, and the first light source unit 1 and the second light source unit 2 and peripheral components The gap between them can be kept uniform.

  Further, since the first light source unit 1 and the second light source unit 2 are connected to each other by the fine movable connecting rod 8, the vertical axis aiming rotation axes X1 and X2 and the left and right aiming rotation axes Y1 and Y2 are connected to the first light source unit 1 and the first light source unit 1. The first light source unit 1 and the first light source unit 1 and the second light source unit 2 are operated by the operation of each one of the upper and lower aiming operation units 7 and the left and right aiming operation units 6 while absorbing the phase difference between the two light source units 1 and 2 caused by setting the two light source units 2 individually. The two light source units 2 can be simultaneously rotated in the vertical and horizontal directions to adjust their optical axes efficiently and easily.

  In the above embodiment, the embodiment in which the present invention is applied to the aiming device that adjusts the optical axes of two light source units has been described. However, the present invention adjusts the optical axes of three or more light source units. Of course, the present invention can be similarly applied to the aiming device.

DESCRIPTION OF SYMBOLS 1 1st light source unit 2 2nd light source unit 3 Heat sink 4 Board | substrate 5 Optical lens 6 Left-right aiming operation part 7 Vertical aiming operation part 8 Fine movable connection rod 9 Pivot shaft O1, O2
P1, P2 Aiming center X1, X2 Vertical rotation axis Y1, Y2 Horizontal rotation axis

Claims (3)

A plurality of light source units for multiple lamps arranged offset in the vertical and horizontal directions are rotated in the vertical direction or the horizontal direction by operating each one vertical aiming operation unit and left and right aiming operation units, and light in the vertical and horizontal directions In the aiming device of the light source unit for multi-lamps in which the axis adjustment is performed simultaneously for all the light source units,
The light source unit for multi-lamps is characterized in that each of the light source units has a rotation axis for vertical aiming and a rotation axis for left and right aiming individually, and two adjacent light source units are connected by a fine movable connecting rod. Aiming device.   The aiming device of the light source unit for multi-lamps according to claim 1, wherein a horizontal axis passing through an optical axis of each light source unit is used as a rotation axis at the time of vertical aiming of each light source unit. The aiming device of the light source unit for multi-lamps according to claim 1 or 2, wherein a vertical axis positioned substantially equidistant from the optical axis for each light source unit is used as a rotation axis during left and right aiming.

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