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JP-2026075525-A - Lighting fixtures

JP2026075525AJP 2026075525 AJP2026075525 AJP 2026075525AJP-2026075525-A

Abstract

[Problem] Suppress glare. [Solution] The lighting fixture comprises a light source 10, a first optical element 31, and a second optical element 32. The light source 10 emits light. The first optical element 31 and the second optical element 32 are arranged along the optical axis of the light source 10 and refract the light emitted from the light source 10 in a predetermined direction. The first optical element 31 and the second optical element 32 are arranged in the order of second optical element 32, then first optical element 31, from the light source 10 side in the optical axis direction. The first optical element 31 is inclined with respect to the optical axis direction and has a rotation axis (first rotation axis Ax1) which serves as the center of rotation when the first optical element 31 is rotated. [Selection Diagram] Figure 7

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 (8)

  1. A light source that emits light, The system comprises a first optical element and a second optical element, which are arranged along the optical axis of the light source and refract the light emitted from the light source in a predetermined direction. The first optical element and the second optical element are arranged in the optical axis direction from the light source side in the order of the second optical element followed by the first optical element. The first optical element is inclined with respect to the optical axis and has a rotation axis that serves as the center of rotation when the first optical element is rotated. Lighting fixtures.
  2. Unlike the first rotation axis, which is the rotation axis, the second optical element has a second rotation axis that serves as the center of rotation when the second optical element is rotated. The second axis of rotation is aligned with the first axis of rotation. The lighting fixture according to claim 1.
  3. The system further comprises a focusing lens positioned between the second optical element and the light source in the optical axis direction. A lighting fixture according to claim 1 or 2.
  4. The angle of refraction of the first optical element and the angle of refraction of the second optical element are the same. The lighting fixture according to claim 3.
  5. The device further comprises an operating unit for moving at least the condensing lens among the first optical element, the second optical element, and the condensing lens along the optical axis direction. The lighting fixture according to claim 3.
  6. The second optical element is a focusing lens positioned between the first optical element and the light source in the optical axis direction. A lighting fixture according to claim 1 or 2.
  7. The device further includes an operating unit for moving at least the second optical element, among the first and second optical elements, along the optical axis direction. The lighting fixture according to claim 6.
  8. The direction of emission of the light emitted from the light source while at least the first optical element among the first and second optical elements is rotated is different from the viewing direction, which is the direction in which the user visually views the lighting fixture. A lighting fixture according to claim 1 or 2.

Description

This disclosure relates to a lighting fixture. More specifically, this disclosure relates to a lighting fixture comprising multiple optical elements. Patent Document 1 describes a lighting fixture comprising a planar light source, a first prism panel and a second prism panel, a first support frame and a second support frame, and a fixture body. The planar light source has a light-emitting surface that emits light. Each of the first and second prism panels has a light-emitting surface located below the planar light source that changes the direction of the light emitted from the planar light source. The first support frame supports the first prism panel so as to cover its entire circumference. The second support frame supports the second prism panel so as to cover its entire circumference. The main body of the apparatus is formed in a bottomed cylindrical shape with an open bottom and houses the planar light source, the first prism panel, the second prism panel, the first support frame, and the second support frame. In the lighting fixture described in Patent Document 1, the first prism panel is rotatable by manually rotating the first support frame, and the second prism panel is rotatable by manually rotating the second support frame. Japanese Patent Publication No. 2009-54322 Figure 1 is an exploded perspective view of a lighting fixture according to an 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 partial cross-sectional view of the first optical element provided in the lighting fixture described above.Figure 5 is a block diagram of the same lighting fixture.Figure 6 is a side view of the pair of optical elements and the first rotary operating part of the same lighting fixture.Figure 7 is a cross-sectional view showing an example of the arrangement of a pair of optical elements in the same lighting fixture.Figure 8 is a cross-sectional view showing another example of the arrangement of the pair of optical elements in the same lighting fixture.Figure 9 is a cross-sectional view showing an example of the arrangement of a pair of optical elements in a lighting fixture according to a modified example 2 of the embodiment.Figure 10 is a cross-sectional view showing an example of the arrangement of a pair of optical elements in a lighting fixture according to modified embodiment 3.Figure 11 is a cross-sectional view of a pair of optical elements provided in a lighting fixture according to a modified example 4 of the embodiment.Figure 12 is a cross-sectional view showing an example of the processing of an optical element in a lighting fixture according to modified example 5 of the embodiment.Figure 13 is a cross-sectional view showing an example of the processing of an optical element in a lighting fixture according to modified embodiment 6.Figure 14 is a cross-sectional view showing an example of the processing of an optical element in a lighting fixture according to modified example 7 of the embodiment.Figure 15 is a cross-sectional view showing an example of the arrangement of a pair of optical elements in a lighting fixture according to modified embodiment 8.Figure 16 is a block diagram of a lighting fixture according to modified example 9 of the embodiment. The following description of the luminaire according to the embodiment will be made with reference to the drawings. The drawings referenced in the following embodiments are schematic, and the size and thickness of the components shown in the drawings do not necessarily reflect the actual dimensions. Similarly, the size ratios and thickness ratios between components do not necessarily reflect the actual dimensional ratios. (Embodiment) (1) Overview First, an overview of the lighting fixture 1 according to this embodiment will be described with reference to Figures 1 to 3. The lighting fixture 1 according to this embodiment is, for example, a spotlight that is embedded in the ceiling of a facility to illuminate the interior of the facility. The facility is, for example, a residential facility such as a detached house or individual dwelling units in an apartment building, or a non-residential facility such as an office, shop, school, or nursing home. In this embodiment, as an example, the facility is an individual dwelling unit or individual room in an apartment building. The lighting fixture 1 according to this embodiment comprises a light source 10, a first optical element 31, and a second optical element 32. The light source 10 emits light. The first optical element 31 and the second optical element 32 are arranged along the optical axis and refract the light emitted from the light source 10 in a predetermined direction. The first optical element 31 and the second optical element 32 are arranged in the order of second optical element 32, then first optical element 31, from the light source 10 side along the optica