CN117515440B - Infrared lamp tube based on optical design and regulating device - Google Patents
Infrared lamp tube based on optical design and regulating device Download PDFInfo
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention provides an infrared lamp tube based on optical design and a regulating and controlling device, and relates to the technical field of electric heating. The infrared lamp tube based on the optical design comprises a lamp tube body and a lamp wick; the lamp wick is formed by a lamp filament which is spirally arranged, the lamp wick penetrates through the lamp tube body, and the lamp wick is in interference fit with the lamp tube body. The infrared lamp tube based on the optical design can ensure that the central shaft of the lamp core is fixed, and when the lamp tube is in an electrified working state, the lamp core is supported in all directions through the lamp tube body, so that severe deformation of the lamp core due to double effects of thermal stress generated by high temperature and self geometric center gravity during working can be reduced, the degree of change of the center of the infrared light source is reduced, and further, continuous reflection and refraction of light caused by unreasonable deformation of the lamp core are reduced, so that the last converted heat disappears, and the optical efficiency is further improved.
Description
Technical Field
The invention relates to the technical field of electric heating, in particular to an infrared lamp tube based on optical design and a regulating device.
Background
The lamp wick of the existing infrared light source lamp tube is designed and bent into different shapes due to different power requirements, so that the requirement of stable power is met. But leads to the problems of low optical efficiency conversion and poor consistency throughout the operation of the infrared light source.
Disclosure of Invention
In view of the above, the invention aims to overcome the defects in the prior art, and provides an infrared lamp tube based on optical design, which can effectively improve optical efficiency and consistency everywhere and improve the quality of a light source;
in addition, a regulating and controlling device for the infrared lamp tube based on the optical design is provided.
The invention provides the following technical scheme:
according to a first aspect of the present disclosure, there is provided an infrared lamp tube based on an optical design, the infrared lamp tube based on an optical design including:
a lamp tube body;
the lampwick is formed by a lamp filament which is spirally arranged, the lampwick penetrates through the lamp tube body, and the lampwick is in interference fit with the lamp tube body.
Further, the lamp wick and the lamp tube body are coaxially arranged; wherein the cross section of the filament is arranged in a round shape.
Further, the pitch of the lamp wick is larger than 30% of the wire diameter of the lamp filament, and the wire diameter of the lamp filament is 0.15-0.3mm.
Further, the wick is in an elastically stretched state.
According to a second aspect of the present disclosure, there is provided a regulating device including the infrared lamp tube based on an optical design.
Further, the regulating and controlling device further comprises a reflector, wherein the reflector is provided with an opening end, and a parabolic cylinder is formed on the inner wall of the reflector;
the infrared lamp tube based on optical design is installed in the inner cavity of the reflector, the infrared lamp tube based on optical design extends along a first straight line, the first straight line is parallel to a bus of the parabolic cylinder, the focuses of the parabolic cylinder are located on the axis of the infrared lamp tube based on optical design, so that infrared rays emitted by the infrared lamp tube based on optical design are reflected by the parabolic cylinder to form first parallel rays, and the first parallel rays are parallel to a symmetry axis of the parabolic cylinder.
Further, a light reflecting area is formed on the side wall of the infrared lamp tube based on the optical design, and the light reflecting area is formed by surrounding a part tangential to the infrared lamp tube based on the optical design in the first parallel light; wherein the light reflecting area is provided with a light reflecting coating, and the light reflecting area is at least partially contacted with the reflector.
Further, the regulating device further comprises a first plano-convex cylindrical mirror, the opening end of the parabolic cylinder is provided with a first boundary line and a second boundary line which are oppositely arranged, the plane where the symmetry axis and the generatrix of the parabolic cylinder are located is a symmetry plane, the first boundary line and the second boundary line are symmetrical with respect to the symmetry plane, and the first plano-convex cylindrical mirror is configured to enable only infrared rays emitted by the part of the infrared lamp tube which is based on the optical design and is located in a fan-shaped area formed among the first boundary line, the focal line and the second boundary line to be refracted to form second parallel rays, and the second parallel rays are parallel to the first parallel rays.
Further, the focal point of the first plano-convex cylindrical lens is located on the axis, the first plano-convex cylindrical lens is symmetrically arranged around the symmetry plane, the first plano-convex cylindrical lens is provided with a first plane and a second plane which are opposite, the first plane and the second plane are symmetrically arranged around the symmetry plane, and the distance between the first plane and the second plane is the diameter of the infrared lamp tube based on the optical design.
Further, the parabolic equation is: y=5.6x;
the diameter of the infrared lamp tube based on the optical design is 4mm;
the distance between the first boundary line and the second boundary line is 15mm.
Further, the regulating device further comprises a second plano-convex cylindrical mirror, and the second plano-convex cylindrical mirror is used for refracting the first parallel light rays and the second parallel light rays so as to focus the first parallel light rays and the second parallel light rays to form light spots;
the second plano-convex cylindrical mirror can move along the extending direction of the first parallel light rays so as to adjust the size of the light spots.
Further, the regulation and control device further comprises a scanning galvanometer, wherein the scanning galvanometer is used for receiving the light spots and driving the light spots to move along a set path.
Further, the regulating device further comprises a fine adjustment mechanism, the infrared lamp tube based on the optical design is connected with the reflector through the fine adjustment mechanism, and the fine adjustment mechanism is used for adjusting the relative positions of the infrared lamp tube based on the optical design and the reflector.
Further, the fine adjustment mechanism includes:
the first adjusting piece is connected with the infrared lamp tube based on the optical design and can drive the infrared lamp tube based on the optical design to move along a first direction, and the first direction is perpendicular to the symmetry plane;
the second adjusting piece is connected with the reflector, the second adjusting piece can drive the reflector to move along a second direction, and the second direction is parallel to the symmetry axis of the parabolic cylinder.
Embodiments of the present invention have the following advantages:
the infrared lamp tube based on the optical design, provided by the invention, has the advantages that the outer diameter of the lamp wick is in interference fit with the lamp tube body, the central shaft of the lamp wick is ensured to be fixed, and the lamp wick is arranged to be supported by the lamp tube body; when the lamp is in an electrified working state, the lamp core is supported in an omnibearing manner through the lamp tube body, so that serious deformation of the lamp core due to the double effects of thermal stress generated by high-temperature heat and self-geometric center gravity during working can be reduced, the degree of change of the center of an infrared light source is reduced, and the continuous reflection and refraction of light caused by unreasonable deformation of the lamp core are reduced, so that the last conversion of the light into heat is lost, and the optical efficiency is further improved; and reducing the deformation amount of the lamp wick so as to reduce the degree of power and resistance increase caused by the stretching of the lamp wick, and also improving the optical efficiency. In addition, the lamp core is contacted with the lamp tube body, so that the heat conduction efficiency between the lamp core and the lamp tube body can be improved, and the heat dissipation is facilitated, thereby reducing the deformation quantity of the lamp core.
Therefore, the device can improve the thermal stability of the infrared lamp tube based on optical design, ensure that the heat quantity of the infrared lamp tube based on optical design is basically consistent throughout, has high light efficiency conversion, and has high color temperature consistency and stable central wavelength.
In addition, the invention also relates to a regulating device, because the infrared lamp tube based on the optical design has the technical effects, the regulating device comprising the infrared lamp tube based on the optical design has the same technical effects, and the description is omitted herein.
In order to make the above objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view showing a view angle of an infrared lamp tube based on an optical design according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing another view angle of an infrared lamp tube based on an optical design according to an embodiment of the present invention;
FIG. 3 is a schematic view illustrating a structure of a viewing angle of a controlling device according to an embodiment of the present invention;
FIG. 4 is a schematic view of another view of a regulating device according to an embodiment of the present invention;
FIG. 5 is a schematic view showing another view angle of a regulating device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram illustrating a view angle of a regulating device according to a second embodiment of the present invention;
fig. 7 is a schematic structural diagram of another view angle of the regulating device according to the second embodiment of the present invention;
fig. 8 is a schematic structural diagram of a mirror in a control device according to a first embodiment of the present invention;
fig. 9 is a schematic diagram of a regulating device according to a second embodiment of the present invention.
Description of main reference numerals:
100-an infrared lamp tube based on optical design; 110-a lamp tube body; 111-light reflecting area; 120-wick; 130-an inflation inlet; 200-reflecting mirrors; 210-a first boundary line; 220-open end; 230-a second boundary line; 240-parabolic cylinder; 241-plane of symmetry; 250-arc surface; 251-groove; 300-fine tuning mechanism; 310-base; 320-a second adjuster; 321-locking bolts; 322-slide rail; 330-a first adjuster; 331-heightening the bolt; 400-a first plano-convex cylindrical mirror; 500-a second plano-convex cylindrical mirror; 600-facula; 700-first parallel ray; 800-second parallel ray.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the templates herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the related art, regarding the technology of the infrared lamp tube 100 based on the optical design, the far infrared rays use carbon fiber as the lamp wick 120, the near infrared light source uses tungsten wire as the lamp wick 120, and then the lamp wick 120 is placed in a circular quartz glass tube and filled with inert gas; wherein, the wick 120 is straightened in a spiral shape, connected to the electrodes at both ends and welded. That is, the wick 120 is formed by spirally winding a tungsten wire.
The lamp core 120 of the infrared light source lamp tube is designed to be bent into different shapes according to different power requirements so as to realize the requirement of stable power. But leads to the problems of low optical efficiency conversion and poor consistency throughout the operation of the infrared light source.
As shown in fig. 1 and 2, in order to solve the above-mentioned technical problems, according to a first aspect of the disclosure, an infrared lamp tube based on an optical design is provided, the infrared lamp tube 100 based on the optical design includes a lamp tube body 110 and a lamp wick 120, the lamp wick 120 is formed by filaments arranged in a spiral shape, the lamp wick 120 is inserted into the lamp tube body 110, and the lamp wick 120 and the lamp tube body 110 are in interference fit.
That is, the outer side of the spiral lamp core 120 is abutted against the inner wall of the lamp tube body 110, wherein the lamp core 120 is formed by spirally winding the filament, the outer side of the lamp core 120 forms a cylindrical surface, the inner wall of the lamp tube body 110 is also a cylindrical surface, so that the inner wall of the lamp tube body 110 has supporting force to all positions of the lamp core 120, and the lamp core 120 is maintained.
Of course, because of the contact between the lamp wick 120 and the inner wall of the lamp tube body 110, there is necessarily a certain frictional resistance between the two, and the lamp wick 120 can be deformed in a telescopic manner under the influence of the heat generated by the operation of the lamp wick. Obviously, the lamp core 120 is supported by the lamp tube body 110, and can recover due to elongation caused by thermal stress and self gravity, so that the lamp core 120 is prevented from being elongated, and the power and the resistance of the lamp core 120 are prevented from being influenced. If the shape of the lamp wick 120 is deformed, the infrared rays are not regularly dispersed, and cannot be effectively emitted from the lamp wick 120 to the outside of the lamp tube body 110, so that the heat is converted into heat, which causes waste and affects the optical efficiency.
It should be noted that, by using the interference fit between the lamp core 120 and the lamp body 110, the center line of the light source is ensured to be in a fixed state basically, so as to improve the quality of the light source.
In addition, the lamp tube body 110 and the lamp wick 120 are in direct contact, and the heat generated by the lamp wick 120 can be conducted to the lamp tube body 110, and in general, the lamp tube body 110 and the lamp holder are connected, so that the heat generated by the lamp wick 120 is conducted out, and the heat dissipation is facilitated. The lamp body 110 is made of quartz glass, and has high thermal conductivity.
It is easy to understand that, in the special infrared light source designed at present, the power is the square of the voltage divided by the resistance, namely p=u, and a great amount of life experiments prove that under the condition of lower power, for example, the power is set to be 10-15W, when the voltage is set to be 6V, the filament is selected to be a tungsten filament, the lamp tube body 110 is a quartz glass tube, the working state and the service life of the tungsten filament 120 are relatively stable, and the condition of deformation and light intensity attenuation do not occur through the interference fit of the tungsten filament 120 designed at this time and the inner wall of the quartz glass tube, so that a good data basis is obtained;
the shape and the wire core size of the tungsten filament lamp core 120 are changed according to the formula, so that a preset power value is set, and in order to reduce the cost, the current design mostly adopts a mode of a small-diameter tungsten filament and a small-diameter tungsten filament lamp core 120 to reach the set power value, and the equivalent cross-sectional area of the tungsten filament lamp core is changed;
however, several design test experiments show that under the condition that the outer diameter of the tungsten filament 120 is large and the wire diameter of the tungsten filament is large under the same power, the wire diameter of the tungsten filament is 0.15-0.3mm, good specific peak wavelength can be obtained under specific voltage and current change, the optical power efficiency under the specific wavelength is high, meanwhile, the efficiency of emitting infrared rays is high under the good regular thread winding shape due to no deformation, and the probability of occurrence of multiple reflection and refraction inside the lamp tube body 110 is greatly reduced. The temperature sampling is performed on the outer wall of the lamp body 110, the tungsten filament wick 120, and two ends of the electrode, and the average values of the test data of the three positions are: 280+ -1deg.C, 1000+ -1deg.C and 70+ -1deg.C. The temperature of the tungsten filament 120 with small wire diameter and small outer diameter (the mode of clearance fit between the tungsten filament 120 and the inner wall of the quartz glass tube) is obtained at the same position, the average temperature of the three positions is 400+/-1 ℃, 1350+/-1 ℃ and 85+/-1 ℃ respectively, which are obviously far higher than the former, and the experimental and theoretical design prove that the requirements are completely compounded;
in summary, through the above experiments, process improvement and optical design, the output light of the special infrared light source reaches the design requirement in several important indexes such as color temperature, specific peak wavelength power ratio, optical center coaxiality of the light source and deformation, and has great improvement.
By applying the infrared lamp tube based on the optical design, which is provided by the invention, the outer diameter of the lamp wick 120 is designed to be in interference fit with the lamp tube body 110, so that the central shaft of the lamp wick 120 is ensured to be fixed, and the purpose is to arrange the lamp wick 120 to be supported by the lamp tube body 110; when the lamp tube is in an electrified working state, the lamp tube body 110 is used for supporting the lamp tube 120 in an omnibearing manner, so that serious deformation of the lamp tube 120 due to the double effects of thermal stress generated by high temperature heat and self geometric center gravity during working can be reduced, the degree of change of the infrared light source center is reduced, and the continuous reflection and refraction of light caused by unreasonable deformation of the lamp tube 120 are reduced, so that the last conversion of the light into heat is eliminated, and the optical efficiency is further improved; and, the amount of deformation of the wick 120 is reduced to reduce the degree of increase in power and resistance due to the wick 120 being stretched, as well as to improve optical efficiency. In addition, the lamp core 120 is in contact with the lamp tube body 110, so that the heat conduction efficiency between the lamp core 120 and the lamp tube body 110 can be improved, and the heat dissipation is facilitated, thereby reducing the deformation amount of the lamp core 120.
Therefore, the device can improve the thermal stability of the infrared lamp tube 100 based on the optical design, ensure that the heat quantity of the infrared lamp tube 100 based on the optical design is basically consistent, has high light efficiency conversion, and has high color temperature consistency and stable center wavelength.
As shown in fig. 1, the lamp wick 120 and the lamp tube body 110 are coaxially disposed on the basis of the above-described embodiment; wherein the cross section of the filament is arranged in a circular shape.
The appearance of the lamp core 120 is cylindrical, the lamp tube body 110 is also cylindrical, and the lamp core 120 is arranged coaxially with the lamp tube body 110, so that the lamp core 120 is coincident with the central axis of the lamp tube body 110, the specific installation accuracy reaches +/-0.03 mm, and under the supporting action of the lamp tube body 110, the central line of the infrared lamp tube 100 based on optical design is coincident with the central line of the light source, the consistency of color temperature is high, the central wavelength of the light source is stable, that is, the quality of the infrared light source is good.
The cross section of the filament is circular, so that regular light divergence is formed to form an ordered light distribution curve, and secondary optical development and optical beam shaping design are facilitated.
Based on the above embodiment, the pitch of the lamp filament 120 is greater than 30% of the wire diameter of the lamp filament, and the wire diameter of the lamp filament is 0.15-0.3mm.
The pitch of the lamp core 120 is greater than 30% of the wire diameter of the filament, which is beneficial to the infrared ray inside the lamp core 120 to scatter out without repeated reflection, and finally becomes reactive power consumed by energy, so that the light efficiency of the infrared lamp tube 100 based on optical design can be improved, and the energy consumption can be reduced.
Wherein, the wire diameter of the filament is set to be 0.15-0.3mm; if the wire diameter of the filament is set to be less than 0.15mm, the overall heat generation amount of the infrared lamp tube 100 based on the optical design increases; if the wire diameter of the filament is set to be greater than 0.3mm, the overall power consumption of the infrared lamp tube 100 based on the optical design is higher. Exemplary filament wire diameters may be 0.15mm, 0.18mm, 0.20mm, 0.22mm, 0.25mm, 0.27mm, 0.3mm, etc.
Based on the above embodiments, the wick 120 is in an elastically stretched state.
In order to achieve the above installation accuracy and interference fit process design, after the spiral lamp core 120 is stretched to a certain size, the outer diameter of the lamp core 120 is deformed due to longitudinal tension, so that the outer diameter of the lamp core 120 is reduced, the lamp core 120 is loosened after the lamp core is inserted into the lamp tube body 110 to reach a preset position, and the lamp core 120 which is stretched to a long length is reset; it should be noted that, in the initial state of the lamp wick 120, the original outer diameter of the lamp wick 120 is larger than the inner diameter of the lamp tube body 110. At this time, the wick 120 forms an interference fit with the inner wall of the lamp tube body 110, thereby completing the installation process level with coaxiality of zero.
Obviously, when the lamp core 120 is abutted against the inner wall of the lamp tube body 110, the lamp core 120 is not restored to the initial state, and thus, the elastic deformation force of the lamp core 120 can at least partially offset the deformation force generated by the thermal stress and the gravity generated by the high heat, that is, the deformation amount of the lamp core 120 can be reduced, and the light source quality of the infrared lamp tube 100 based on the optical design can be improved.
As shown in fig. 3, 4 and 5, according to a second aspect of the present disclosure, a first embodiment provides a regulating device, which includes an infrared lamp tube 100 based on an optical design.
Since the above-mentioned infrared lamp tube 100 based on the optical design has the above-mentioned technical effects, the adjusting and controlling device including the infrared lamp tube 100 based on the optical design should have the same technical effects, and will not be described herein.
The regulation and control device can be used in the fields of medical shaping, indoor illumination, security monitoring, infrared drying and the like. And the regulation and control device in this application is used for medical plastic field.
It is easy to understand that the infrared light source emits a spectrum in which the near infrared spectrum (peak 1300 nm) of 900-1800mm is intercepted, called "milk light", and acts on the water in the middle-deep layer of the dermis, and when the surface layer of the water is irradiated by the platinum milk light, the distance between each water molecule is increased, so that the liquid becomes "more fluid". Mitochondria are energized by an enzyme that binds to their cell membrane. The enzyme rotates like a molecular turbine, and being surrounded by more fluid water can make it easier to turn, thereby producing more ATP. ATP, adenosine triphosphate, is a kind of coenzyme, and is one kind of direct energy source for all life activities of tissue cell in body to promote cell repair and regeneration in body, promote the bioactivity of collagen fiber to strengthen, redistribute dermis and repair damaged skin to make skin become excellent reflecting board, so as to increase the refractive index of skin surface indirectly. The photothermal effect of milk light can enhance blood vessel function, dilate micro-blood vessel, accelerate blood circulation, increase oxygen content of blood, and accelerate metabolite removal.
On the basis of the above embodiment, the adjusting and controlling device further includes a passive heat dissipation mechanism, where the passive heat dissipation mechanism is used for dissipating heat of the infrared lamp tube 100 based on the optical design, and in general, in order to ensure the quality of the light source of the adjusting and controlling device, the volume and the power of the passive heat dissipation mechanism are larger. The infrared light source (namely the infrared lamp tube 100 based on the optical design) is improved in the process, so that the volume of the passive heat dissipation mechanism of the regulating device is greatly reduced, the power of the passive heat dissipation mechanism is reduced, the volume of the regulating device is reduced, and the feasibility of portable design development of a product of the regulating device is improved.
As shown in fig. 4 and 8, the regulating device further includes a mirror 200, the mirror 200 having an open end 220, and the inner wall of the mirror 200 being formed with a parabolic cylinder 240, similar to a U-shape, on the basis of the above-described embodiment; the infrared lamp tube 100 based on the optical design is installed in the reflector 200, the infrared lamp tube 100 based on the optical design extends along a first straight line, the first straight line is parallel to a bus of the parabolic cylinder 240, and the focuses of the parabolic cylinder 240 are all located on the axis of the infrared lamp tube 100 based on the optical design, so that the infrared rays emitted by the infrared lamp tube 100 based on the optical design are reflected by the parabolic cylinder 240 to form a first parallel ray 700, and the symmetry axes of the first parallel ray 700 and the parabolic cylinder 240 are parallel.
The focal point of the parabolic equation for parabolic cylinder 240 is located on the axis of infrared tube 100 based on the optical design, i.e., the focal point is located on the centerline of the light source. After the infrared rays emitted by the infrared lamp tube 100 based on the optical design are reflected by the reflector 200, the parabolic cylinder 240 can make the infrared rays emitted to form the first parallel light rays 700, so as to obtain the parallel light with high collimation. The infrared lamp tube 100 and the reflector 200 have extremely high coaxiality control precision, the geometric center axis of the infrared lamp tube 100 based on optical design coincides with the focal line of the reflector 200, and the allowable tolerance is +/-0.01 mm, so that the light source center is consistent with the focal point of the parabola, and the light can be shaped into parallel light.
It is easy to understand that the mathematical theory of parabolas is that a point light source emitting light at 360 degrees is emitted in parallel when being beaten on a parabola curved surface after the focus diverges.
As shown in fig. 9, on the basis of the above embodiment, the side wall of the infrared lamp tube 100 based on the optical design is formed with a light reflection region 111, and a portion of the light reflection region 111, which is tangential to the infrared lamp tube 100 based on the optical design, is surrounded by a first parallel ray 700; wherein the light reflecting area 111 is provided with a light reflecting plating, and the light reflecting area 111 is at least partially in contact with the mirror 200.
The lamp tube body 110 has a convex gas charging port 130, and the gas charging port 130 is used for charging inert gas into the lamp tube body 110, and the convex effect on infrared emission efficiency. Therefore, the light reflecting area 111 is selectively provided on the side where the air charging port 130 is located. The light emitting mode of the infrared lamp tube 100 based on the optical design belongs to 360-degree all-directional light emission, and no scattering occurs in the coaxial direction of the infrared lamp tube 100 based on the optical design;
in order to realize the light emission in a 180-degree direction, the light-reflecting coating is formed on the surface with the protrusions, so that the light spectrum emitted by the lamp wick 120 can be reflected to the other surface, the purpose of optical shaping inside the lamp wick 120 is achieved, the light emission direction is changed, the light emission of the infrared lamp tube 100 based on optical design in the 180-degree direction is further obtained, the density of the formed first parallel light rays 700 is more uniform, the infrared rays emitted by the infrared lamp tube 100 based on optical design can be fully utilized, the high optical system efficiency is obtained, and the heat generation inside the regulating and controlling device is reduced.
Optionally, the reflective coating is an optical reflective coating, and the coating material comprises at least one of aluminum, silver, gold, and the like. How to coat the film is a common knowledge of a person skilled in the art, and is not described here in detail. For example, in order to improve the reflectivity, on the premise of controllable cost, the reflectivity is improved to 99% by adopting a multilayer optical gold plating film, and the efficiency is 5% -30% higher than that of the conventional plating powder or aluminum and the like; while reducing the likelihood of this portion of the light being converted to heat.
In addition, the portion of the reflective area 111, which is tangential to the optical design-based infrared ray lamp tube 100, is formed around the first parallel ray 700 so that most of the infrared rays emitted from the optical design-based infrared ray lamp tube 100 can be emitted out of the mirror 200 by using the infrared rays to the maximum. Obviously, the infrared ray reflected by the reflective area 111 is reflected back to the lamp wick 120 and cannot be effectively utilized, so that if the reflective area 111 is larger, the more the infrared ray is reflected to the lamp wick 120, resulting in high temperature and low utilization of the infrared lamp tube 100 based on the optical design.
By providing the light reflecting region 111, a part of the infrared ray reflected by the light reflecting region 111 can be reflected by the parabolic cylinder 240 to form the first parallel ray 700, and by matching with the pitch of the lamp wick 120, at least a part of the first parallel ray 700 reflected by the light reflecting region 111 can be emitted out of the reflector 200 through the gap between the filaments to form effective light, thereby maximizing the infrared ray emitted by the infrared lamp tube 100 based on the optical design.
Of course, the light reflecting region 111 at least partially contacts the reflector 200, so that heat of the infrared lamp tube 100 based on the optical design can be directly transferred to the reflector 200, thereby improving heat dissipation efficiency.
As shown in fig. 6, 7 and 8, on the basis of the above-described embodiment, the regulating device further includes a first plano-convex cylindrical mirror 400, the open end 220 of the parabolic cylinder 240 having a first boundary line 210 and a second boundary line 230 disposed opposite to each other, the parabolic cylinder having a focal line and a plane of symmetry, and the plane of symmetry of the parabolic cylinder 240 and the bus being a plane of symmetry 241, a straight line in which all focuses of the parabolic cylinder are collinear being a focal line, the first boundary line 210 and the second boundary line 230 being symmetrical about the plane of symmetry 241, the first plano-convex cylindrical mirror 400 being configured to be capable of refracting only infrared rays emitted from a portion of the infrared lamp tube 100 based on an optical design located in a fan-shaped region formed between the first boundary line 210, the focal line and the second boundary line 230 to form a second parallel ray 800, the second parallel ray 800 being parallel to the first parallel ray 700.
That is, the symmetry axis of the parabola of the parabolic cylinder 240 is formed with the symmetry plane 241, and the first boundary line 210 and the second boundary line 230 are parallel and symmetrically disposed with respect to the symmetry plane 241, the open end 220 is formed between the first boundary line 210 and the second boundary line 230, and the infrared ray emitted from the infrared ray lamp 100 based on the optical design installed in the reflector 200 needs to be emitted from the open end 220.
It should be noted that, the portion of the infrared lamp 100 located in the fan-shaped region formed by the connection line between the first boundary line 210, the focal line and the second boundary line 230 based on the optical design emits the infrared ray directly out of the open end 220 without being reflected by the parabolic cylinder 240, and the portion of the infrared ray is not shaped by the parabolic cylinder 240 and is ineffective, resulting in low light efficiency.
Obviously, by adding the first plano-convex cylindrical mirror 400 to shape the portion of the infrared light that is not reflected by the parabolic cylinder 240 into a second parallel ray 800 that is parallel to the first parallel ray 700, an effective ray is formed.
On the basis of the above embodiment, the focal line of the first plano-convex cylindrical mirror 400 is located on the axis of the infrared lamp tube 100 based on the optical design, and the first plano-convex cylindrical mirror 400 is symmetrically disposed with respect to the symmetry plane 241, wherein the first plano-convex cylindrical mirror 400 has opposite first and second planes symmetrically disposed with respect to the symmetry plane 241, and a distance dimension between the first and second planes is a diameter dimension of the infrared lamp tube 100 based on the optical design.
The position of the first plano-convex cylindrical mirror 400 is adjusted so that the axis of the infrared lamp tube 100 based on the optical design coincides with the focal line of the first plano-convex cylindrical mirror 400, the infrared rays will be shaped into second parallel rays 800.
By defining the distance between the first plane and the second plane, that is, the height of the first plano-convex cylindrical lens 400 and the outer diameter of the infrared ray tube 100 based on the optical design are made equal so as not to block the first parallel light ray 700 which has been shaped by the parabolic cylinder 240.
In addition, it should be added that the infrared ray reflected by the reflective coating returns along the path and passes through the gap of the filament, and then is incident into the first plano-convex cylindrical mirror 400 to be refracted into the second parallel ray 800, so as to improve the utilization rate of the infrared ray.
Based on the above embodiment, the equation of the parabolic cylinder 240 is: y=5.6x; the infrared lamp tube 100 based on the optical design has a diameter of 4mm; the distance between the first boundary line 210 and the second boundary line 230 is 15mm.
Illustratively, the parabolic equation for parabolic cylinder 240 is: y=5.6x, the optical plating film is provided in the region where the infrared ray lamp tube 100 based on the optical design and the parabolic cylinder 240 intersect, while the distance between the first boundary line 210 and the second boundary line 230 is the opening height due to the limitation of the opening height of the parabola of the parabolic cylinder 240, when the opening height is set to 15mm, the sector-shaped region composed of the intersection point of the region where the infrared ray lamp tube 100 based on the optical design and the parabolic cylinder 240 intersect is just up to 129.5 °, approximately 130 °.
At this time, the optical coating is disposed on the side of the optical design-based infrared lamp tube 100 far from the opening of the parabolic cylinder 240, the central angle occupied by the optical coating is 130 °, and the area with the central angle of 50 ° on the side of the optical design-based infrared lamp tube 100 far from the opening of the parabolic cylinder 240 can allow light to enter the parabolic cylinder 240 and reflect out to form the first parallel light 700, the first parallel light 700 is tangential to the circular optical design-based infrared lamp tube 100 with the diameter of 4mm, and the first parallel light 700 is just formed by reflecting the infrared light emitted by the edge of the optical coating in the 130 ° area through the parabolic cylinder 240.
Obviously, the boundary line of the sector area of 130 ° is the boundary line of the optical coating, the light passing through the boundary line is effectively utilized to the greatest extent to be integrated into the critical value of the first parallel light 700, and the infrared rays emitted toward the optical coating are reflected back to the wick 120 by the optical coating and cannot be effectively utilized, and this portion is converted into heat to be lost.
As shown in fig. 6, 7, 8 and 9, the adjusting and controlling device further includes a second plano-convex cylindrical mirror 500, where the second plano-convex cylindrical mirror 500 is used to refract the first parallel light ray 700 and the second parallel light ray 800 so as to focus them to form a light spot 600; the second plano-convex cylindrical mirror 500 can move along the extending direction of the first parallel light ray 700 to adjust the size of the light spot 600.
In order to make the adjusting and controlling device emit the point light source, the second plano-convex cylindrical mirror 500 is disposed at the opening end 220 of the reflector 200 to converge the first parallel light ray 700 and the second parallel light ray 800 to form the light spot 600, that is, the point light source, so as to implement the shrinkage beam, and concentrate the light energy on the target working surface, thereby achieving the effect of improving the power density. The energy (power) density determines the speed of the effect of medical cosmetology.
Of course, due to effective shaping, after stray light is finished, light on the target working surface can be uniformly distributed, uniformity of the light spot 600 is improved, and clear boundary is achieved.
On the basis of the above embodiment, the adjusting and controlling device further comprises a scanning galvanometer, wherein the scanning galvanometer is used for receiving the light spot 600 and driving the light spot 600 to move along a set path.
In order to meet the application scene with longer light path, a scanning galvanometer is additionally arranged, so that the light spot 600 can complete scanning within a certain area in a short time.
Energy (power) density = energy (power)/spot 600 area; as can be seen, there are two methods of varying the energy (power) density;
mode one: the energy (power) is increased, but under the conditions of limited design space, extremely high infrared temperature, high requirement on heat dissipation conditions and large heat dissipation temperature difference, the portable technical product is difficult to meet, and stable spectrum wavelength characteristics cannot be obtained;
mode two: the area of the light spot 600 is reduced, and a divergent light distribution curve for emitting light at 360 degrees can be realized by an optical shaping mode, and the light spot 600 with a certain shape (rectangle or square) is shaped, so that energy (power) is converged in the light spot 600.
On the basis of the above embodiment, the adjusting and controlling device further includes a fine adjustment mechanism 300, the infrared lamp tube 100 based on the optical design is connected to the reflector 200 through the fine adjustment mechanism 300, and the fine adjustment mechanism 300 is used for adjusting the relative positions of the infrared lamp tube 100 and the reflector 200 based on the optical design.
That is, by providing the fine adjustment mechanism 300, the relative positional relationship between the infrared lamp tube 100 and the reflector 200 based on the optical design can be adjusted, so that the coaxiality of the infrared lamp tube and the reflector can be adjusted, and the quality of the light source can be ensured.
In addition, the infrared lamp tube 100 based on the optical design is connected with the reflector 200 by the fine adjustment mechanism 300, so that the infrared lamp tube 100 based on the optical design can be easily detached and replaced.
As shown in fig. 6, 7 and 8, on the basis of the above-described embodiment, the fine adjustment mechanism 300 includes a base 310, a first adjustment member 330 and a second adjustment member 320, the first adjustment member 330 is connected to the infrared lamp tube 100 based on the optical design, and the first adjustment member 330 is capable of driving the infrared lamp tube 100 based on the optical design to move in a first direction, which is perpendicular to the symmetry plane 241; the second adjuster 320 is coupled to the mirror 200, and the second adjuster 320 is capable of driving the mirror 200 to move in a second direction parallel to the symmetry axis of the parabolic cylinder 240.
Illustratively, the infrared lamp tube 100 based on the optical design is connected to the base 310 through the first adjuster 330, and the reflector 200 is connected to the base 310 through the second adjuster 320, so that the positions of the reflector 200 and the infrared lamp tube 100 based on the optical design are adjusted by the cooperation of the two until the two are coaxial.
Optionally, the first adjuster 330 includes a lamp holder, to which the infrared lamp tube 100 based on the optical design is mounted, and the bottom of which is connected to the base 310 through a height-adjusting bolt 331.
The second adjuster 320 includes a slide rail 322, the slide rail 322 extends along the second direction, the mirror 200 is connected with the slide rail 322, and the mirror 200 is connected with a locking bolt 321, and locking or unlocking is achieved by screwing the locking bolt 321.
On the basis of the above embodiment, the reflector 200 is provided with the arc surface 250, and the arc surface 250 can be abutted against the side surface of the infrared lamp tube 100 based on the optical design, so as to position the infrared lamp tube 100 based on the optical design. Wherein, when the arc surface 250 is in surface contact with the infrared lamp tube 100 based on the optical design, the axis of the infrared lamp tube 100 based on the optical design coincides with the focal line of the parabolic cylinder 240.
It should be noted that arcuate surface 250 is provided with a recess 251 to accommodate inflation port 130 on infrared tube 100 based on the optical design.
Illustratively, the arcuate surface 250 and the contact area of the infrared light tube 100 based on the optical design are positioned within the light reflecting area 111 to affect blocking of infrared reflection.
Any particular values in all examples shown and described herein are to be construed as merely illustrative and not a limitation, and thus other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
The above examples merely represent a few embodiments of the present invention, which are described in more detail and are not to be construed as limiting the scope of the present invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (8)
1. The regulating and controlling device is characterized by comprising an infrared lamp tube based on optical design and a reflecting mirror, wherein the reflecting mirror is provided with an opening end, and a parabolic cylinder is formed on the inner wall of the reflecting mirror;
the infrared lamp tube based on the optical design is arranged in the inner cavity of the reflector, the infrared lamp tube based on the optical design is arranged along a first straight line in an extending mode, the first straight line is parallel to a bus of the parabolic cylinder, and focuses of the parabolic cylinder are located on the axis of the infrared lamp tube based on the optical design, so that infrared rays emitted by the infrared lamp tube based on the optical design are reflected by the parabolic cylinder to form first parallel rays, and the first parallel rays are parallel to a symmetry axis of the parabolic cylinder;
the infrared lamp tube based on optical design includes:
a lamp tube body;
the lamp core is formed by a lamp filament which is spirally arranged, the lamp core penetrates through the lamp tube body, and the lamp core is in interference fit with the lamp tube body;
the lamp wick and the lamp tube body are coaxially arranged, the screw pitch of the lamp wick is larger than 30% of the wire diameter of the lamp filament, the wire diameter of the lamp filament is 0.15-0.3mm, and the lamp wick is in an elastic stretching state;
the side wall of the infrared lamp tube based on the optical design is provided with a light reflecting area, and the light reflecting area is formed by surrounding a part, tangent to the infrared lamp tube based on the optical design, of the first parallel light; wherein the light reflecting area is provided with a light reflecting coating, and at least part of the light reflecting area is contacted with the reflector;
the regulating device further comprises a first plano-convex cylindrical mirror, the open end of the parabolic cylinder is provided with a first boundary line and a second boundary line which are oppositely arranged, the parabolic cylinder is provided with a symmetrical plane and a focal line, the first boundary line and the second boundary line are symmetrically arranged about the symmetrical plane, and the first plano-convex cylindrical mirror is configured to enable only infrared rays emitted by a part of the infrared lamp tube based on the optical design, which is positioned in a fan-shaped area formed among the first boundary line, the focal line and the second boundary line, to be refracted to form second parallel rays, and the second parallel rays are parallel to the first parallel rays.
2. The tuning device of claim 1, wherein the filament is circular in cross-section.
3. The tuning device of claim 1, wherein the focal point of the first plano-convex cylindrical mirror is located on an axis, the first plano-convex cylindrical mirror being symmetrically disposed about the plane of symmetry, wherein the first plano-convex cylindrical mirror has opposing first and second planes, the first and second planes being symmetrically disposed about the plane of symmetry, a dimension of a distance between the first and second planes being a dimension of a diameter of the infrared tube based on the optical design.
4. The regulating device of claim 1, wherein the equation for the parabolic cylinder is: y=5.6x;
the diameter of the infrared lamp tube based on the optical design is 4mm;
the distance between the first boundary line and the second boundary line is 15mm.
5. The modulation device of claim 1, further comprising a second plano-convex cylindrical mirror for refracting the first parallel light and the second parallel light to focus them to form a spot;
the second plano-convex cylindrical mirror can move along the extending direction of the first parallel light rays so as to adjust the size of the light spots.
6. The modulation device of claim 5, further comprising a scanning galvanometer for receiving the light spot and driving the light spot along a set path.
7. The tuning device of claim 5, further comprising a fine tuning mechanism by which the infrared tube based on the optical design is coupled to the reflector, the fine tuning mechanism being configured to adjust the relative positions of the infrared tube based on the optical design and the reflector.
8. The regulating device of claim 7, wherein the fine tuning mechanism comprises:
the first adjusting piece is connected with the infrared lamp tube based on the optical design and can drive the infrared lamp tube based on the optical design to move along a first direction, and the first direction is perpendicular to the symmetry plane;
the second adjusting piece is connected with the reflector, the second adjusting piece can drive the reflector to move along a second direction, and the second direction is parallel to the symmetry axis of the parabolic cylinder.
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| CN88102266A (en) * | 1987-04-15 | 1988-11-02 | 菲利浦光灯制造公司 | Electric infrared lamp |
| JP2008305758A (en) * | 2007-06-11 | 2008-12-18 | Ｎｅｃディスプレイソリューションズ株式会社 | Light source device, and projection-type display device equipped with the device |
| CN103797891A (en) * | 2011-11-15 | 2014-05-14 | 东芝照明技术株式会社 | Tubular heater and heating device |
| CN111050427A (en) * | 2018-10-11 | 2020-04-21 | 优志旺电机株式会社 | Heating lamp |
| CN213066007U (en) * | 2020-08-11 | 2021-04-27 | 中国人民解放军国防科技大学 | Reflection device of high-power infrared lamp tube |
| KR20210145592A (en) * | 2020-05-25 | 2021-12-02 | 주식회사 제이투씨 | Apparatus for amplifying light intensity of infrared rays-led |
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2024
- 2024-01-05 CN CN202410015543.4A patent/CN117515440B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88102266A (en) * | 1987-04-15 | 1988-11-02 | 菲利浦光灯制造公司 | Electric infrared lamp |
| JP2008305758A (en) * | 2007-06-11 | 2008-12-18 | Ｎｅｃディスプレイソリューションズ株式会社 | Light source device, and projection-type display device equipped with the device |
| CN103797891A (en) * | 2011-11-15 | 2014-05-14 | 东芝照明技术株式会社 | Tubular heater and heating device |
| CN111050427A (en) * | 2018-10-11 | 2020-04-21 | 优志旺电机株式会社 | Heating lamp |
| KR20210145592A (en) * | 2020-05-25 | 2021-12-02 | 주식회사 제이투씨 | Apparatus for amplifying light intensity of infrared rays-led |
| CN213066007U (en) * | 2020-08-11 | 2021-04-27 | 中国人民解放军国防科技大学 | Reflection device of high-power infrared lamp tube |
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