JPS6110801A - Multi-lamp stadium lighting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to spot lighting,
This invention relates to a multi-light studio lighting fixture that can perform various light distribution control up to 1-l lighting.

Technical background J1 and its problems Conventional multi-light studio lighting equipment of this type - A bar is attached to each light to adjust the irradiation angle and focus of each light, but many light projection units are uniformly variable. This is difficult due to heat and other issues.

In addition, when focusing, the light distribution does not spread only to the left and right, but spreads to the entire top, bottom, left, and right, and furthermore, there is a drawback that the pattern may be blurred or uneven illumination may occur.

OBJECTS OF THE INVENTION It is an object of the present invention to provide a multi-light studio lighting fixture that can uniformly control various light distributions in studio lighting.

Summary of the Invention The present invention provides a system in which a large number of light emitting units I- are arranged in a housing so that the axes of their rotational supports are parallel to each other, and the lever ratio with respect to the rotation thereof increases sequentially from the center toward both outer sides. Since the light emitting unit l- is connected to the lever by a lever,
All light emitting units can be operated by simply operating the lever in one place.
each rotates at the required angle, making it possible to focus only to the left and right without blurring the center of the image.Furthermore, all the light emitting units are integrated into the housing. The structure is such that control of the irradiation angle is extremely easy.

Embodiments of the Invention First, a U-shaped support 1 is provided, and at both ends of this support 1, a narrow long housing 3 having an opening 2 in the front is rotatably provided. There is. Around the opening 2 of the housing 3, a reflecting plate 5 is attached to each side 4 so as to be able to rise and fall freely. The lower center of the support 1 is rotatably attached to a support (not shown).

Next, inside the housing 3, a plurality of light projecting lights 1 to 6 are arranged in a straight line. These light emitting units l-6 are constructed by housing a lamp 9 supported by a socket 8 and a mirror 10 located around the lamp 9 inside a case 7. A rotation support 11 located on the same axis -1- is formed protruding from the upper and lower outer surfaces of the case 7.

The light projecting unit 6 is mounted in the housing 3 so that the axes of the rotational supports 11 are arranged in parallel in the vertical direction and are rotatable in a horizontal plane at a constant interval from each other.

Assuming that there are five light projecting units 6, the central light projecting unit 6 is fixed, and the two light projecting units 6 on both sides are rotatable. and,
An operating lever 13 having a 7-shaped shape and a grip portion 12 formed at one end is provided in the center so as to move forward and backward in a direction perpendicular to the arrangement direction of the light projecting units 6. Straight levers 14 are rotatably connected to both ends of such operation lever i3, and the ends of these levers 14 are displaced from the rotational fulcrum 11 of the adjacent light projecting unit 6. It is rotatably attached to the position. This lever 1
The lever 1 is attached to the light projection unit 6 to which the lever 4 is attached.
Another lever 15 is attached to the opposite side Ll away from the rotation fulcrum 11 from the connection point 4. The end of this lever 15 is rotatably connected to the outermost light projecting unit 6. The distance between this connection point and the rotation fulcrum 11 is L2, and they have the following relationship: ) L2. In other words, the lever ratio relative to the rotation thereof increases gradually from the center toward the outside.

In such a configuration, in order to determine the direction of irradiation at the same time, the housing 3 must be rotated along with the support Jt, and the horizontal position
1Y is determined, and the vertical position is determined by vertically rotating the housing 3 with respect to the support 1;
Operation lever] Grip part of 3] -2 and move it back and forth i
, the light projecting unit 6 is rotated by the levers 1, 4, and 15, and the angle of rotation is smaller on the inside and larger on the outside. Therefore, since the optical axis of each light projecting unit 6 increases or decreases sequentially from the center toward the outside, the luminous flux does not expand in the vertical direction, but expands or contracts in the horizontal direction. Therefore, uniform irradiation is achieved without blurring the pattern or uneven illumination.

Furthermore, when lighting a single object, it is possible to wrap around the object to avoid creating shadows.

Effects of the Invention In the present invention, as described above, the rotational supports of a large number of light projection units are made parallel and arranged on a straight line within the housing, so that the irradiation direction can be set in the direction 111 by turning the housing. Since the light emitting units are connected so that the lever ratio for their rotation increases as they move outward from the center, the directions of all the light emitting units are set so that the angles formed by the adjacent optical axes are the same. As a result, light distribution control from spot lighting to flat lighting can be performed without blurring or uneven lighting.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view, FIG. 2 is a perspective view of a light projecting unit, and FIGS. 3 and 4 are plan views showing the arrangement of the light projecting units. 3. Housing, 6. Light emitter unit h, 11 Rotation fulcrum, 13
...Operation lever (lever), 14, 15 Lever Applicant: Toshiba Electric Materials Corporation 3" Box 5 Z, 30 Box 3U drawing

Claims (1)

[Claims] A large number of light projecting units each having rotational supports formed on both outer surfaces on a common axis are disposed substantially in a straight line within a housing supported by a support such that the axes of the rotational supports are parallel to each other, A multi-light studio lighting fixture, characterized in that the light projecting units are connected by levers such that the lever ratio relative to the rotation thereof increases sequentially from the center toward both outer sides.