Search

JP-2026075524-A - Lighting fixtures

JP2026075524AJP 2026075524 AJP2026075524 AJP 2026075524AJP-2026075524-A

Abstract

[Problem] The problem addressed by this disclosure is to change the direction of irradiation of light emitted from a light source. [Solution] The lighting fixture 1 comprises a light source 10, a pair of optical elements 30, and an operating unit 40. The light source 10 emits light. The pair of optical elements 30 are arranged side by side along the optical axis of the light source 10 and have the function of bending the light emitted from the light source 10 in a predetermined direction. The operating unit 40 has a first rotation function that rotates each of the pair of optical elements 30 by the same amount in opposite directions with the axis along the optical axis as the axis of rotation, and a second rotation function that rotates both of the pair of optical elements 30 by the same amount in the same direction with the axis along the optical axis as the axis of rotation, thereby adjusting the rotation of the pair of optical elements 30. [Selection Diagram] Figure 5

Inventors

  • 阿南 真一

Assignees

  • パナソニックＩＰマネジメント株式会社

Dates

Publication Date
20260508
Application Date
20241022

Claims (10)

  1. A light source that emits light, A pair of optical elements arranged side by side along the optical axis of the light source and having the function of bending the light emitted from the light source in a predetermined direction, The system includes an operating unit for adjusting the rotation of the pair of optical elements, The aforementioned operating unit is A first rotation function that rotates each of the pair of optical elements by the same amount in opposite directions, with the axis along the optical axis as the axis of rotation, The pair of optical elements have a second rotation function that rotates both of them by the same amount in the same direction, with the axis along the optical axis being the axis of rotation, Lighting fixtures.
  2. The first rotation function is a function that transmits a first rotational force applied to one of the pair of optical elements as a second rotational force that rotates the other optical element in the opposite direction. The lighting fixture according to claim 1.
  3. The first rotational force is a force that directly or indirectly rotates one of the pair of optical elements. The lighting fixture according to claim 2.
  4. The first rotation function is a function that rotates each of the pair of optical elements in opposite directions to each other in response to the operation of the operating unit. The lighting fixture according to claim 1.
  5. The operating unit comprises a rotation operating unit having the first rotation function and an operating receiving unit that receives rotational operations of the pair of optical elements. The rotation operation unit rotates each of the pair of optical elements in opposite directions in response to an operation on the operation receiving unit. The lighting fixture according to claim 4.
  6. The holding part further comprises a second rotation function which holds the pair of optical elements and rotates the axis along the optical axis with respect to the axis of rotation, The operating section includes the holding section, Both of the pair of optical elements rotate in the same direction by the same amount as the holding portion rotates. A lighting fixture according to any one of claims 1 to 5.
  7. The system further includes a drive unit for driving the aforementioned operating unit. A lighting fixture according to any one of claims 1 to 5.
  8. A condensing lens is disposed between the pair of optical elements and the light source, The system further includes a positioning unit that moves at least the condensing lens among the condensing lens and the pair of optical elements in the optical axis direction of the light source. A lighting fixture according to any one of claims 1 to 5.
  9. The operating unit includes a first rotation operating unit having the first rotation function and a second rotation operating unit having the second rotation function. A lighting fixture according to any one of claims 1 to 5.
  10. Both of the pair of optical elements have the same angle of emitted light relative to incident light. A lighting fixture according to any one of claims 1 to 5.

Description

This disclosure relates to lighting fixtures in general, and more particularly to lighting fixtures with adjustable illumination direction. Patent Document 1 provides a lighting fixture that can vary the light distribution without increasing the size of the fixture body. The lighting fixture described in Patent Document 1 comprises a flat, plate-shaped planar light source having a light-emitting surface; a flat, plate-shaped first prism panel and a second prism panel, each having a light-emitting surface that changes the direction of light emitted from the planar light source; a substantially circular first support frame and a second support frame that support the first and second prism panels by covering their entire circumferences; and a fixture body formed in a bottomed cylindrical shape with an open bottom, housing the planar light source, the first prism panel, the second prism panel, the first support frame, and the second support frame. Each prism panel can be rotated independently of each other by manually rotating each support frame. Japanese Patent Publication No. 2009-054322 Figure 1 is an exploded perspective view of the lighting fixture according to this embodiment.Figure 2 is an exploded perspective view of the lighting device provided by the same lighting fixture.Figure 3 is a cross-sectional view of the same lighting fixture.Figure 4 is a cross-sectional view showing a part of the first optical element provided in the lighting fixture described above.Figure 5 is a block diagram showing the configuration of the lighting fixture described above.Figure 6 is a side view of the pair of optical elements and the first rotary operating section of the same lighting fixture.Figure 7 is a schematic diagram illustrating the principle of refraction of a pair of optical elements in the same lighting fixture.Figure 8 is another schematic diagram illustrating the principle of refraction of a pair of optical elements in the same lighting fixture.Figure 9 is a side view showing the operation of the first rotary control unit of the same lighting fixture.Figure 10 is a side view showing the operation of the second rotary control unit of the same lighting fixture.Figure 11 is a cross-sectional view showing an example of the arrangement of optical elements in the lighting fixture of Modification 7.Figure 12 is a cross-sectional view showing another example of the arrangement of optical elements in the lighting fixture of Modification 7.Figure 13 is a cross-sectional view showing an example of the optical elements provided in the lighting fixture of Modification 8.Figure 14 is a cross-sectional view showing an example of the processing of the optical elements in the lighting fixture of Modified Example 9.Figure 15 is a cross-sectional view showing another example of the processing of the optical elements in the lighting fixture of Modified Example 9.Figure 16 is a cross-sectional view showing yet another example of the processing of the optical elements in the lighting fixture of Modification 9.Figure 17 is a block diagram showing the configuration of modified example 10. The embodiments and modifications described below are merely examples of the present disclosure, and this disclosure is not limited to these embodiments and modifications. Various modifications are possible depending on the design, etc., as long as they do not depart from the technical idea of this disclosure, even if they are not described below. (Embodiment) The lighting fixture 1 according to this embodiment will be described below with reference to Figures 1 to 10. In this embodiment, the vertical direction is defined for the lighting fixture 1, as shown in Figure 1. For example, in Figure 1, when the lighting fixture 1 is installed on the ceiling, the direction extending from the ground to the ceiling is defined as the vertical direction. Figures 1 to 4 and 6 to 10 show arrows representing these directions (up and down), but these arrows are included merely to aid in explanation and do not represent actual movement. Furthermore, the above definition of direction is not intended to limit the usage of the lighting fixture in this embodiment. (1) Overview As shown in Figure 5, the lighting fixture 1 according to this embodiment comprises a light source 10, a pair of optical elements 30, and an operating unit 40. The light source 10 emits light. The pair of optical elements 30 are arranged side by side along the optical axis of the light source 10 and have the function of bending the light emitted from the light source 10 in a predetermined direction. The operating unit 40 adjusts the rotation of the pair of optical elements 30. The operating unit 40 has a first rotation function that rotates each of the pair of optical elements 30 by the same amount in opposite directions with respect to the axis along the optical axis of the light source 10 as the axis of rotation, and a second rotation function that rotates both of the pair of optical element