Reflection-cutting LED bulb
The LED bulb design with reflective cuts on protrusions addresses lens yellowing and irregular reflection, achieving HID-like light reproduction with reduced power consumption and improved lifespan.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- WINEEDS HOLDINGS CO LTD
- Filing Date
- 2024-12-26
- Publication Date
- 2026-07-08
AI Technical Summary
Conventional LED bulbs suffer from lens yellowing due to UV rays, high power consumption, heat generation leading to short lifespan, and irregular reflection, while conventional HID bulbs face issues with UV-induced lens yellowing and inefficient light reproduction.
The LED bulb design incorporates LEDs on both sides with rectangular protrusions featuring black seals or paint for reflective cuts, mimicking the light emission of HID bulbs by controlling reflection.
The design effectively reproduces HID-like light without scattering, addressing lens yellowing and irregular reflection, and reducing power consumption and heat-related issues.
Smart Images
Figure 2026114874000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a reflective cut LED bulb that can reproduce the light of an original HID bulb.
Background Art
[0002] As a conventional technique, as shown in FIG. 4, a black coating T is applied to the entire circumference below the light emitter H and a part of the back surface of the glass tube G (lens) provided with the light emitter H so as to cut reflection. Also, in a conventional LED bulb (see FIG. 6), the protruding part T1 uses a material such as aluminum as it is.
Summary of the Invention
[0003] The above-mentioned conventional original HID bulb has problems such as the lens turning yellow due to emitting ultraviolet rays, high power consumption, and short lifespan due to heat generation and the like. Also, in a conventional LED bulb, due to a material such as aluminum, irregular reflection occurs, which is a problem. (See the red frame in FIG. 7)
[0004] The present invention aims to solve the problems of such a conventional configuration, and an object thereof is to provide a reflective cut LED bulb that can reproduce the light of an original HID bulb.
Means for Solving the Problems
[0005] To achieve the above object, the present invention provides LEDs on both sides of the bulb body, provides a protruding part at at least one location in the longitudinal direction of this LED, and provides a reflective cut part for cutting reflection on this protruding part. The protruding part is characterized by being rectangular. The reflective cut part is characterized by being a black seal and the reflective cut part is characterized by being a black coating, a reflective cut LED bulb.
Effects of the Invention
[0006] 1) By providing a protrusion along the longitudinal direction of the LED bulb and applying a black seal or black paint to this protrusion, reflection is cut off, and the light emitted from the LED is not scattered, allowing the light to be reproduced in the same way as that of a genuine HID bulb. [Brief explanation of the drawing]
[0007] [Figure 1] A first perspective view of a reflection-cut LED bulb showing one embodiment of the present invention. [Figure 2] A second perspective view of a reflection-cut LED bulb showing one embodiment of the present invention. [Figure 3] A diagram showing the light emission state of a reflection-cut LED bulb, illustrating one embodiment of the present invention. [Figure 4] A side view of a conventional genuine HID bulb. [Figure 5] Diagram showing the light emission state of a conventional genuine HID bulb. [Figure 6] A perspective view of a conventional LED bulb. [Figure 7] Diagram showing the light emission state of a conventional LED bulb. [Modes for carrying out the invention]
[0008] The reflection-cut LED bulb 1 is characterized by having LEDs 3 on both sides of the bulb body 2, and rectangular protrusions 4 provided in the lateral direction below the LEDs 3, with reflection-cut sections 5 made of black seals or black paint provided on these protrusions 4 to cut reflection. (Figures 1 and 2)
[0009] When this reflection-cut LED bulb 1 is used to replace the original HID bulb and is turned on, it can reproduce light similar to that of the original HID bulb (Figure 5) without causing diffuse reflection, as shown in Figure 3.
[0010] In the above embodiment, the shape of the protruding portion and the material of the reflective cut portion are not particularly limited as long as they have similar functions. [Explanation of symbols]
[0011] 1 --- Reflection-cutting LED bulb 2 --- Valve body 3---LED 4---Protruding part 5 --- Reflective cut section
Claims
1. A headlight LED bulb for automobiles, characterized in that LEDs are provided on both sides of the bulb body, and a protrusion is provided at least one location in the longitudinal direction of the LED, and a reflection-cutting portion is provided on this protrusion to cut reflection.
2. The reflective cut LED bulb according to claim 1, characterized in that the protruding portion is rectangular in shape.
3. The reflective cut LED bulb according to claim 1 or 2, characterized in that the reflective cut portion is a black seal.
4. The reflective cut LED bulb according to claim 1 or 2, characterized in that the reflective cut portion is painted black.