CN101463949B - LED illumination device suitable for extravehicular activity of astronaut - Google Patents
LED illumination device suitable for extravehicular activity of astronaut Download PDFInfo
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- CN101463949B CN101463949B CN2008102045618A CN200810204561A CN101463949B CN 101463949 B CN101463949 B CN 101463949B CN 2008102045618 A CN2008102045618 A CN 2008102045618A CN 200810204561 A CN200810204561 A CN 200810204561A CN 101463949 B CN101463949 B CN 101463949B
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- illuminating lamp
- lamp
- light emitting
- secondary optical
- led illuminating
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Abstract
The invention discloses an LED illuminating lamp suitable for extravehicular activities of a spaceman. The lamp is mainly characterized by comprising LEDs, a secondary optical system, a circuit structure and a lamp structure. The secondary optical system 200 mainly consists of a secondary optical base, a quartz lens, a gland and the like, and collects luminous energy from the LEDs from a conical area with a point angle of 140 degrees to conical area with the point angle of 80 degrees. The circuit structure divides 24 LEDs of the LED illuminating lamp into two totally independent groups, and each group of LED devices is subject to a 'four parallel-three series' connection. The lamp structure causes the LED illuminating lamp to evenly light in a range which is minus 80 degrees to plus 80 degrees of the X axis, and thermal radiation heat elimination of the lamp, a regulation block forwardly slants the optical energy emitted from the LEDs and the secondary optical system to Y axis to realize illumination of the illuminating lamp in the area which is about 0 to plus80 degrees of the Y axis.
Description
Technical field
The present invention relates to the LED space lighting engineering in a kind of manned space flight field, be meant a kind of LED illuminating lamp of suitable extravehicular activity of astronaut especially.
Background technology
Along with satisfactorily finishing of " Shenzhou V " manned spaceship space flight task, China's manned astro-engineering enters the Spacecraft Rendezvous butt joint development stage, and space extravehicular activity and aircraft intersection butt joint are listed in two steps of China's manned space flight needs the key technology of solution.In order to guarantee that extravehicular activity of astronaut and aircraft intersection docking mission finish smoothly, must develop to astronaut and space video camera manned transport vessel illuminator out of my cabin is provided.
The space shuttle of the U.S. disposes system and complicated illuminator, and each workspace adopted corresponding illumination scheme to satisfy different illuminance requirements during it threw light on out of my cabin.The exterior lighting light source of u.s. space shuttle mainly adopts Metal halogen lamp.
Domestic research in space flight illumination application facet is started late, and has certain application foundation (adopting heat radiation light source incandescent lamp etc. as U-shaped fluorescent lamp, the illumination of " No. two, divine boat " space biological culture that " Shenzhou V ", " Shenzhou VI spacecraft " cabin intraoral illumination adopt whiting light cold light source to make) aspect the intraoral illumination of airship cabin at present; Still there be not direct application experience aspect the illumination out of my cabin of manned transport vessel.
The manned transport vessel of SZ-7 realizes China's extravehicular activity of astronaut first, and development is fit to the LED illuminator of manned transport vessel characteristics of China and mission requirements, belongs to both at home and abroad first.
Summary of the invention
Based on the manned transport vessel illuminator of domestic and international space lighting engineering background and China characteristics demand, the present invention has developed a kind of floodlight LED illuminating lamp that is applicable to extravehicular activity of astronaut, solve the floodlighting of China astronaut when the extravehicular activity of shadow zone, ground, and, support that video camera obtains extravehicular activity of astronaut image clearly for the surveillance camera of spacecraft appearance face provides stable white-light illuminating.
The object of the present invention is achieved like this: the LED illuminating lamp that the invention provides a kind of suitable extravehicular activity of astronaut, mainly comprising following four parts forms: light emitting diode 100, secondary optical system 200, circuit structure 300 and fitting structure, as shown in Figure 1.
Secondary optical system 200 mainly is made up of optical mount 201, quartz lens 202, gland 203 etc., the luminous energy that light emitting diode is sent in realization is that to converge to drift angle be 80 ° of conical area to 140 ° of conical area from drift angle, realize making full use of of luminous energy, light channel structure as shown in Figure 2.Certain blasting treatment is adopted on the quartz lens surface, suitably eliminates the dazzle that produces greatly owing to light-emitting diode luminance, and quartz lens can protect light emitting diode to avoid the irradiation influence of space charged particle, ray simultaneously.
Fitting structure mainly contains matrix 401, adjusts compositions such as piece 402, back shroud 403 and connector gland 404.Matrix 401 is designed to the shape and structure of similar Any shape " Fresnel lens ", 24 light sources of LED illuminating lamp are evenly distributed on the lamp body, realize that illuminating lamp is in evenly illumination and solve the heat loss through radiation of LED illuminating lamp under the space vacuum environmental condition by its surperficial high emissivity thermal control coatings simultaneously of X axis-80 °～+ 80 °; Adjust piece and mainly the luminous energy of part outgoing from secondary optical system is tilted 40 ° to the Y-axis forward, realize the illumination of illuminating lamp in 0 ° of Y-axis forward～+ 80 ° of zones.
Advantage of the present invention is:
1. this illuminating lamp adopts LED as lighting source, has advantages such as high efficiency, high reliability, high security, has realized the demand of China's manned space flight task under the Limited resources condition.The present invention is domestic and even the international first time LED lighting source is applied to spacecraft illuminator out of my cabin;
2. every of this illuminating lamp light emitting diode all has independently secondary optical system, and the efficiency of light energy utilization that this design has fully improved device evenly distributes with the luminous energy that has solved device.
3. this illuminating lamp adopts the circuit structure of independent duplex feeding, and every group of LED device is adopted carry out parallel connection by tetrad earlier, and then with " 4 and 3 string " connected mode that three and joint group are connected, has improved the reliability of illuminating lamp.
4. the fitting structure of this illuminating lamp is designed to the shape of similar Any shape " Fresnel lens ", is making full use of under the luminous energy situation of every light emitting diode, has solved big, the key contradiction problems such as volume is little, light weight of LED illuminating lamp light angle.
Description of drawings
Accompanying drawing 1 is the planform and the composition diagram of LED illuminating lamp of the present invention.
Accompanying drawing 2 is the secondary optical system structure and the index path of LED illuminating lamp of the present invention.
Accompanying drawing 3 is the electrical block diagram of LED illuminating lamp of the present invention.
The specific embodiment
Further the present invention is elaborated below in conjunction with accompanying drawing and enforcement, the specific implementation that system constitutes is seen accompanying drawing 1.
The light shooting angle of the light emitting diode 100 that adopts in the light fixture is 140 °, and shooting angle is bigger, adds independent secondary optical system 200 for every light emitting diode among the present invention.Secondary optical system mainly is made up of optical mount 201, quartz lens 202 and gland 203; independently to converge to drift angle be 80 ° conical area to secondary optical system luminous energy that every LEDs light source is sent; form low-angle and evenly throw light on, secondary optical system can protect the LED device to avoid the irradiation influence of space particle, ray simultaneously.The light channel structure of light emitting diode and secondary optical system as shown in Figure 2.
Circuit structure mainly contains lead and electric connector is formed, and adopt elder generation to carry out parallel connection every group of LED device by tetrad, and then " 4 and 3 string " connected mode that three and joint group are connected, guarantee to open circuit or short circuit when losing efficacy at certain light emitting diode, influence minimum to what the illuminating effect of LED illuminating lamp produced, thereby improve the reliability of LED illuminating lamp complete machine.The circuit structure of illuminating lamp as shown in Figure 3.
Fitting structure mainly is made up of matrix 401, adjustment piece 402, back shroud 403 and cap for electrical connector 404.Matrix 401 is designed to the shape of similar Any shape " Fresnel lens ", will expand in X axis-80 °～+ 80 ° zone through the luminous energy of secondary optical system outgoing and distributes more equably, realizes the field of illumination requirement of illuminating lamp X axis; The adjustment piece 402 of lamp body is designed to have the boss structure to the inclination of Y-axis forward, 16 secondary optical systems are tilted 40 ° to the Y-axis forward respectively, realize that most of luminous energy illumination in 0 °～+ 80 ° zones of Y-axis forward, guarantees also have certain illuminating effect for 0 °～-40 ° at the Y-axis negative sense simultaneously.Back shroud 403 and cap for electrical connector 404 major functions are the conductor shieldings with illuminating lamp, avoid the irradiation influence of space particle and ray.
According to the structure of the illuminating lamp among Fig. 1, designed the LED illuminating lamp of the manned transport vessel extravehicular activity of astronaut of a kind of suitable China.The index of this illuminating lamp is as follows:
Field of illumination: X-axis-80 °～+ 80 °, 0 °～+ 80 ° of Y-axis forwards;
Illumination requirement: apart from 3 meters of lamp body, each point illumination 〉=6lx in the above-mentioned spatial dimension;
Power consumption: P≤27W;
Weight: 1.9kg;
Volume: 256 * 115 * 110mm
3(length * wide * height).
Claims (3)
1. the LED illuminating lamp of a suitable extravehicular activity of astronaut comprises light emitting diode (100), secondary optical system (200), circuit structure (300) and light fixture, it is characterized in that:
The luminous energy that quartz lens (202) in the described secondary optical system (200) sends light emitting diode (100) is that to converge to drift angle be 80 ° of conical area to 140 ° of conical area from drift angle;
Described circuit structure (300) is divided into fully independently two groups with 24 light emitting diodes (100) of LED illuminating lamp, and every group of LED device adopted carry out parallel connection by tetrad earlier, and then " 4 and 3 string " connected mode that three and joint group are connected;
Matrix in the described light fixture (401) is the shape and structure of similar " Fresnel lens ", and the light source of 24 light emitting diodes (100) of LED illuminating lamp is evenly distributed on the lamp body, realizes that illuminating lamp is in X axis-80 °～+ 80 ° of more evenly illuminations;
Adjustment piece (402) in the described light fixture tilts the luminous energy of part outgoing from secondary optical system 40 ° to the Y-axis forward, realizes the illumination of illuminating lamp in 0 ° of Y-axis forward～+ 80 ° of zones.
2. the LED illuminating lamp of a kind of suitable extravehicular activity of astronaut according to claim 1 is characterized in that: the light emitting diode that described light emitting diode (100) adopts the upgrading of process reliability to screen.
3. the LED illuminating lamp of a kind of suitable extravehicular activity of astronaut according to claim 1 is characterized in that: the processing of described quartz lens (202) surface sand-blasting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102045618A CN101463949B (en) | 2008-12-15 | 2008-12-15 | LED illumination device suitable for extravehicular activity of astronaut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102045618A CN101463949B (en) | 2008-12-15 | 2008-12-15 | LED illumination device suitable for extravehicular activity of astronaut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101463949A CN101463949A (en) | 2009-06-24 |
| CN101463949B true CN101463949B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102045618A Expired - Fee Related CN101463949B (en) | 2008-12-15 | 2008-12-15 | LED illumination device suitable for extravehicular activity of astronaut |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10222029B2 (en) * | 2014-09-30 | 2019-03-05 | The Boeing Company | Array-based lighting systems and methods of manufacturing |
| CN108382611A (en) * | 2018-01-23 | 2018-08-10 | 倪惠芳 | A kind of aerospace outdoor illumination |
| CN111114830A (en) * | 2019-12-26 | 2020-05-08 | 兰州空间技术物理研究所 | Technical research of space cabin interior scene lighting system |
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2008
- 2008-12-15 CN CN2008102045618A patent/CN101463949B/en not_active Expired - Fee Related
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| CN101463949A (en) | 2009-06-24 |
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