CN104141897B - Light cone system for cold light source focusing - Google Patents

Abstract

The invention relates to a light cone system, particularly to a light cone system for cold light source focusing, and is applied to a medical endoscope lighting source. The light cone system comprises a glass light cone and a gas discharge lamp, wherein the roughness of the outer surface of the glass light cone is 0.006 micrometer, the glass light cone is sleeved with a heat-dissipation seat, the outer surface of the glass light cone is coated with a total-reflection film layer contacted with the heat-dissipation seat, according to the glass light cone, L2=D1=3-100 mm, and L1=L2+(D1+D2)/2=4.5-150 mm; the gas discharge lamp is sleeved with a reflection bowl, the reflection bowl and the D1 end of the glass light cone are distributed in a spaced and matched manner, and the gas discharge lamp is connected with an electric lamp connecting wire. The light cone system for cold light source focusing is high in structural compactness, low in cost, reliable in performance, high in focusing efficiency and low in output temperature.

Description

A light cone system for cold light source focusing

technical field

The invention relates to a light cone system, in particular to a light cone system for focusing a cold light source, which is used as a medical endoscope illumination light source.

Background technique

In the cold light source and high-power light source, gas discharge lamps or LED lights are used, which are focused through parabolic reflection or through optical lens groups. These two methods have low light efficiency and generate high temperature at the focus point to burn the optical fiber. The current solution is only imported hot-melt optical fiber with super high price. There is no focused light cone mentioned in this patent on the market for use on medical light sources.

Contents of the invention

The present invention mainly solves the deficiencies in the prior art, and provides a compact structure that can focus a large area of light spot into the area required by the design, improve the brightness of the light and reduce the temperature of the output light surface, and the output light cone surface can be It is a kind of light cone system used for cold light source focusing with direct contact with the light guide fiber for light transmission and high light transmission efficiency.

Above-mentioned technical problem of the present invention is mainly solved by following technical scheme:

A light cone system for cold light source focusing, including a glass light cone and a gas discharge lamp, the outer surface of the glass light cone has a roughness of 0.006 microns, the glass light dimension is covered with a heat sink, and the The outer surface of the glass light dimension is covered with a total reflection film layer in contact with the heat sink. In the glass light cone: L2=D1=3-100mm, L1=L2+(D1+D2)÷2=4.5-150mm ; The gas discharge lamp is covered with a reflective bowl, and the reflective bowl is spaced and matched with the D1 end of the glass light cone, and the gas discharge lamp is connected to the electric light.

As a preference, evenly distributed heat dissipation strips are arranged on the outside of the heat dissipation seat.

Solved the problem that the high-brightness light source focused and burned the optical fiber.

The outer surface of the glass light cone is vacuum-plated with a total reflection film, the gas discharge lamp is connected to the power supply through a connection line, and the first focusing is carried out through the reflective bowl, and the light focused for the first time enters from the D1 end of the glass light cone. The near-infrared light passes through the reflective film and then dissipates heat through the heat sink. After the visible light is totally reflected in the conical surface, it is focused into a beam with a diameter of D2 to achieve the focusing effect.

The glass light cone has the effect of heat insulation. The thickness of the glass determines the heat insulation effect, but if the thickness is too thick, it will affect the light transmittance. The size of L2=D1, L1=l2+(D1+D2)÷2 can reach the maximum good effect.

The light cone system for focusing cold light sources provided by the invention has high compact structure, low cost, reliable performance, high focusing efficiency and low output temperature.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the sectional structure of the glass light cone in the present invention.

detailed description

The technical solution of the present invention will be further specifically described below through the embodiments and the structural drawings.

Embodiment 1: As shown in Figures 1 and 2, a light cone system for cold light source focusing includes a glass light cone 1 and a gas discharge lamp 2, and the roughness of the outer surface of the glass light cone 1 is 0.006 Micron, the glass light beam 1 is covered with a heat sink 3, the outer surface of the glass light beam 1 is covered with a total reflection film layer 4 in contact with the heat sink 3, in the glass light cone 1: L2=D1=3-100mm, L1=L2+(D1+D2)÷2=4.5-150mm; the gas discharge lamp 2 is covered with a reflective bowl 5, and the reflective bowl 5 and D1 in the glass light cone 1 The terminals are spaced and distributed in a matching manner, and the gas discharge lamp 2 is connected with the electric lamp wire 6 .

The outside of the heat sink 3 is provided with evenly distributed heat dissipation strips 7 .

Claims (1)

1. A light cone system for cold light source focusing, characterized in that it includes a glass light cone (1) and a gas discharge lamp (2), and the roughness of the outer surface of the glass light cone (1) is 0.006 microns , the glass light cone (1) is covered with a heat sink (3), the outer surface of the glass light cone (1) is covered with a total reflection film layer (4) in contact with the heat sink (3), In the glass light cone (1): L2=D1=3-100mm, L1=L2+(D1+D2)÷2=4.5-150mm, wherein D1 is the diameter of the wide end of the glass light cone, and D2 is the narrow end of the glass light cone The diameter of the end, L1 is the thickness value of the cylindrical part of the glass light cone, L2 is the thickness value of the frustum part of the glass light cone; the gas discharge lamp (2) is covered with a reflective bowl (5), and the reflective The bowl (5) is spaced and matched with the D1 end of the glass light cone (1), the gas discharge lamp (2) is connected to the electric lamp connection line (6), and the peripheral equipment of the heat sink (3) There are evenly distributed cooling strips (7).