Head lamp for solving short-range hollow light beam and spherical light source packaging method thereof
A hollow beam, headlight technology, applied in electrical components, circuits, semiconductor devices, etc., can solve problems such as cost increase, and achieve the effects of easy control, simple operation, and great application value
Active Publication Date: 2019-06-07
NANTONG UNIVERSITY
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Problems solved by technology
[0004] The purpose of the present invention is to provide a headlamp and its spherical light source packaging method that can avoid the problems of cost increase, absorption loss and color ring caused by secondary optical design and manufacture, which can solve short-range hollow beams
Method used
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Embodiment 2
[0026] The packaging method of the replacement light source 1 in the present invention has the following steps:
[0027] Step 1: If Figure 5 As shown, the LED blue light chip 18 is bonded to the center of the carrier platform 17 of the bracket. The surface of the carrying platform 17 is concave, with a diameter of d=3mm and an inner height of h=0.2mm, which can be used as a metal heat sink at the same time. The positive and negative poles of the chip 18 are connected to the lead frame 16 with a gold wire 14, and the chip 18 is an LED blue chip;
[0028] Step 2: Use silica gel with a mixed viscosity of 5000 mPa s to prepare a phosphor silica gel mixture at a mass ratio of 1:1:0.158 (where 1:1 is the ratio of silica gel to AB components, and 0.158 is the mass of phosphor powder), and inject the mixture on the surface of the chip until the mixture is raised, such as Figure 5 Medium filling powder glue 13 is shown;
[0029] Step 3: Put the lamp beads into the oven and bake a...
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Abstract
The present invention discloses a head lamp for solving a short-range hollow light beam and a spherical light source packaging method thereof. The head lamp comprises a reflector, a LED light source,a circuit board, a power source and a lamp housing. The reflector is a paraboloidal reflector, the light source is arranged at the bottom portion of the reflector, and light directly emitted by the light source and light reflected by the paraboloid of revolution are emitted at an opening at the top portion; and the light source at the bottom portion of the reflector of the head lamp is arranged asa raised spherical light source. the solution method is simple to operate, an original light source is directly replaced, the light source packaging process is easy to control and low in cost, does not need to change an original reflector and does not need to add a lens so as to avoid the problems of cost improvement, loss absorption and color wheel generation due to secondary optical design andhave considerable application values.
Description
technical field [0001] The invention relates to a headlight and a spherical light source packaging method thereof. Background technique [0002] Headlights are widely used in lighting scenes such as coal mines and outdoor activities at night due to their small size and easy portability, and their main components are rotating paraboloids. The paraboloid of revolution is a curved surface obtained by rotating a parabola around the axis of symmetry. Its characteristic is that the light emitted by the focal point will be emitted parallel to the axis of the paraboloid after being reflected by the paraboloid. If a large-angle light source is placed at the focal point of the paraboloid, the reflected light will A circular spot with uniform illuminance will be formed on the receiving surface, the spot boundary is clear and the irradiation distance is long. However, the rotating parabolic reflector is not a complete paraboloid, and the part from the focal plane to the apex of the par...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H01L33/48H01L33/54H01L33/56H01L33/60H01L33/62
CPCH01L33/483H01L33/60H01L33/62H01L33/56H01L33/54H01L2933/0033
Inventor 宋国华缪建文薛同莲孙正满刘永清冯岩朱浩宇戴伟金
Owner NANTONG UNIVERSITY