Lighting device
A lighting device and light-emitting surface technology, which is applied in the direction of lighting devices, components of lighting devices, cooling/heating devices of lighting devices, etc., can solve the problems of reducing equipment lighting efficiency, manufacturing process pressure, and insufficient heat dissipation surface area of LED bulbs And other issues
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no. 1 example
[0030] figure 1 A cross-sectional view of the lighting device including the LED according to the first embodiment is shown. The lighting device 1 according to the first embodiment includes a light emitting element 2 , an optical lens 3 , a heat dissipation fin 4 , a cover 5 , a base member 6 , a power supply unit 7 , and a base 8 .
[0031] Assuming that there is an axis 10 having an origin set on the center of the light emitting surface of the light emitting element 2 including LEDs, the axis 10 is perpendicular to the light emitting surface, and the direction in which light is emitted is set as a positive direction. The optical lens 3 is provided on the positive direction side of the axis 10 . Optical lens 3 is made of a material with high transmittance, such as polymethyl methacrylate (PMMA), and widely distributes light emitted from light emitting element 2 with high directivity. The first embodiment has the advantage that the light source is less likely to be affected b...
no. 2 example
[0049] The lighting device using LEDs according to the second embodiment will refer to Figure 9 (a) to 9(b) are described. Figure 9 (a) is a sectional view of the lighting device 1A according to the second embodiment, and Figure 9 (b) is along Figure 9 Sectional view taken along line A–A in (a).
[0050] The lighting device 1A according to the second embodiment differs in the shape of the cooling fins 4 from figure 1 lighting fixtures shown. In the first embodiment, the cooling fins 4 radially extend from the base member 6 around the central axis 10 toward the cover 5 . In the second embodiment, each cooling fin 4 accommodated in the cover 5 first extends radially toward the cover 5, and then is branched at a point 11 somewhere between the base member 6 and the cover 5 to form It is Y-shaped. Using this method, the heat dissipation area can be enlarged. If the angle θ between adjacent cooling fins 4 a and branch angle θ b are all set to θ, the distance S between a...
no. 3 example
[0065] The lighting device according to the third embodiment will refer to Figure 12 (a) and 12(b). Figure 12 (a) is a cross-sectional view of the lighting device 1B according to the third embodiment, and Figure 12 (b) is along the Figure 12 (a) A cross-sectional view taken along line A-A.
[0066] The lighting device 1B according to the third embodiment differs in the shape of the heat dissipation fins 4 as figure 1 Illumination device 1 shown. In the lighting device according to the third embodiment, the tubular mechanism that expands the heat dissipation area is formed in the cover 5 with the heat dissipation fins 16 and the heat dissipation fins 4 arranged concentrically with the shaft 10 as the central axis. The cooling fins 4 are arranged between adjacent cooling fins 16 . The cooling fins 4 are also arranged between the outermost cooling fins 16 and the cover 5 , and between the innermost cooling fins and the base member 6 .
[0067] The design parameters of t...
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Abstract
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