A kind of light-source structure of portable self-adapted 3-dimensional reconstruction instrumentTechnical field
The present invention relates to optical image technology field, particularly a kind of light-source structure of portable self-adapted 3-dimensional reconstruction instrument.
Background technology
Three-dimensional imaging and measuring system are known, general in order to obtain the 3D shape of object, are the 3D shape of its physical size ideally.Such imaging and measuring system are divided into two classes substantially: 1) surface-contact system: 2) optical system.Optical system is further divided into again laser triangulation, structured lighting, and More interferes, the different systems such as three-dimensional imaging and travel-time measurement.
The method that More interferes is accurate, but expensive and consuming time: the method for three-dimensional imaging need to two cameras or the image of obtaining that carries out taking pictures for twice compare, obtain the three-dimensional surface of object; Travel-time mensuration is measured the time of laser from the relevant every point reflection of object, and it need to have expensive laser scanning transmitter and receiver.
Coherent source of the prior art usually not accurately and radiating effect not so good, or need expensive equipment, or need to obtain gratifying precision by multiexposure, multiple exposure.Therefore just need to develop a kind of not only accurate but also be easy to use and not bery expensive coherent source.
Summary of the invention
The object of the invention is to provide for above-mentioned shortcomings and deficiencies of the prior art a kind of light-source structure of the portable self-adapted 3-dimensional reconstruction instrument that is easy to heat radiation, this light-source structure is not only simple in structure, with low cost, and the position of relative each lens of light source is adjustable, eliminates parasitic light effective.
Object of the present invention is realized by following technical scheme.
A light-source structure for portable self-adapted 3-dimensional reconstruction instrument, comprises housing and is arranged in housing:
Light source part, it is in order to produce light;
Reflector, it has the first focus, and described light source part is positioned at described the first focus place, and the light of its generation is penetrated along parallel direction by described reflector;
Lens combination, is at least become with the second lens by first lens; First lens has the first focal length; Described the second lens are parallel to described first lens, and the distance of described the second lens and described first lens is 0.5 times to 1.5 times of described the first focal length;
Extraction fan, it is for distributing the heat of described light source part;
Above-mentioned extraction fan, reflector, light source part, lens combination are arranged in the housing of light-source structure successively from right to left;
It is characterized in that: be also provided with one for the fluorescent tube mounting base of described light source part is installed, this fluorescent tube mounting base comprises integrated pedestal and multi-disc fin, above-mentioned multi-disc fin is the identical square sheet of laterally putting, be distributed in abreast from top to bottom the both sides, front and back of described fluorescent tube mounting base, and the distance of self interval 0.5-1mm; Above above-mentioned fluorescent tube mounting base, be also provided with a tube support seat, be provided with a fluorescent tube governor motion above housing, the roof of housing is provided with opening, and described tube support seat connects described fluorescent tube governor motion through above-mentioned opening.
Further, in described fluorescent tube mounting base, have one or more cavity, cavity is arranged along fin direction, and is channel shaped.
Further, described light source part is 375W Metal halogen lamp.
Further, described first lens and the second lens are spherical lens.
Further, described first lens and the second lens are single protruding or biconvex lens.
Compared with prior art, the advantage of the light-source structure of portable self-adapted 3-dimensional reconstruction instrument of the present invention is:
1, the present invention is provided with a tube support seat above fluorescent tube mounting base, above the housing of light-source structure, be provided with a fluorescent tube governor motion, the roof of housing is provided with opening, and described tube support seat connects described fluorescent tube governor motion through above-mentioned opening.Regulate the height of tube support seat by fluorescent tube governor motion, thereby adjust the relative position between fluorescent tube and each position, eliminate parasitic light effective.Simple in structure, with low cost and easy to adjust.
2, fluorescent tube mounting base of the present invention comprises integrated pedestal and multi-disc fin, above-mentioned multi-disc fin is the identical square sheet of laterally putting, be distributed in abreast from top to bottom the both sides, front and back of described fluorescent tube mounting base, and the distance of self interval 0.5-1mm.The heat that fluorescent tube produces is transmitted on each fin by pedestal.This fin is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, and area of dissipation is large, and radiating efficiency is high, has improved the serviceable life of fluorescent tube.
Brief description of the drawings
Fig. 1 is the main TV structure schematic diagram of the light-source structure of the portable self-adapted 3-dimensional reconstruction instrument of the present invention.
Fig. 2 is the perspective view of the light-source structure of the portable self-adapted 3-dimensional reconstruction instrument of the present invention.
In figure: 1 extraction fan, 2 reflectors, 3 light source parts, 4 lens combination, 5 fluorescent tube governor motions, 6 openings, 7 tube support seats, 8 fluorescent tube mounting bases.
Embodiment
Further describe structure of the present invention below in conjunction with accompanying drawing 1 and Fig. 2.
Fig. 1, Fig. 2 are a kind of light-source structures of portable self-adapted 3-dimensional reconstruction instrument, and it comprises:
Light source part 3, it is in order to produce light; Reflector 2, it has the first focus, and described light source part 3 is positioned at described the first focus place, and the light of its generation is penetrated along parallel direction by described reflector 2; Lens combination 4, is at least become with the second lens by first lens; First lens has the first focal length; Described the second lens are parallel to described first lens, and the distance of described the second lens and described first lens is 0.5 times to 1.5 times of described the first focal length; Extraction fan 1, it is for distributing the heat of described light source part 3.Above-mentioned extraction fan 1, reflector 2, light source part 3, lens combination 4 are arranged in the housing of light-source structure successively from right to left.
This light-source structure is also provided with one for the fluorescent tube mounting base 8 of described light source part 3 is installed, this fluorescent tube mounting base 8 comprises integrated pedestal and multi-disc fin, above-mentioned multi-disc fin is the identical square sheet of laterally putting, be distributed in abreast from top to bottom the both sides, front and back of described fluorescent tube mounting base 8, and the distance of self interval 0.5-1mm.The heat that fluorescent tube produces is transmitted on each fin by pedestal.This fin is square sheet, adopts and is made of aluminum or copper, and is provided with multiplely, is parallel distribution, and area of dissipation is large, and radiating efficiency is high, has improved the serviceable life of fluorescent tube.
Above above-mentioned fluorescent tube mounting base 8, be also provided with a tube support seat 7, above the housing of described light-source structure, be provided with a fluorescent tube governor motion 5, the roof of housing is provided with opening 6, and described tube support seat 7 connects described fluorescent tube governor motion 5 through above-mentioned opening 6.In described fluorescent tube mounting base 8, have one or more cavity, cavity is arranged along fin direction, and is channel shaped.Regulate the height of tube support seat 7 by fluorescent tube governor motion 5, thereby adjust the relative position between fluorescent tube and each position, eliminate parasitic light effective.Simple in structure, with low cost and easy to adjust.
Described light source part 3 is 375W Metal halogen lamp.Described first lens and the second lens are spherical lens, single protruding or biconvex lens.
More than show and described ultimate principle of the present invention and principal character and advantage thereof.The technology personage of the industry should understand; the present invention is not subject to the restriction of above-mentioned implementing regulations; what in above-mentioned implementing regulations and instructions, describe is for principle of the present invention is described; do not departing under the prerequisite of the principle of the invention and scope; the present invention also can have various changes and modifications, and these changes and improvements all belong in the claimed scope of the invention.
The claimed scope of the present invention defines with appending claims and other equivalent.