CN111221058B - Lens structure, processing technology thereof and lamp - Google Patents
Lens structure, processing technology thereof and lamp Download PDFInfo
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- CN111221058B CN111221058B CN202010048069.7A CN202010048069A CN111221058B CN 111221058 B CN111221058 B CN 111221058B CN 202010048069 A CN202010048069 A CN 202010048069A CN 111221058 B CN111221058 B CN 111221058B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/77—Measuring, controlling or regulating of velocity or pressure of moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
- B29C45/78—Measuring, controlling or regulating of temperature
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76531—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76668—Injection unit barrel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76655—Location of control
- B29C2945/76658—Injection unit
- B29C2945/76688—Injection unit nozzle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76859—Injection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76862—Holding, dwelling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2011/00—Optical elements, e.g. lenses, prisms
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The application is suitable for the technical field of lamps and provides a lens structure, a processing technology thereof and a lamp, wherein the lens structure is a transparent piece integrally formed by injection molding materials, and the injection molding materials are formed by mixing plastic materials and light scattering powder; the lens structure comprises a lens, wherein on each projection surface passing through the central axis of the lens, the lens is provided with two buses which are symmetrically arranged by the central axis, the buses are spline curves, one ends of the two buses are respectively intersected with the connection points on the central axis, the other ends of the two buses are respectively connected with the connection points to form first line segments, and the two first line segments are intersected at the connection points and form obtuse angles. The plastic material is mixed with the light scattering powder to form a lens structure through injection molding, light rays passing through the lens structure can be subjected to diffuse reflection, and an anti-dazzle effect is achieved; on each projection surface passing through the central axis of the lens, the two first line sections are intersected at the connecting point on the central axis to form an obtuse angle, so that light rays with the reflection angle larger than 90 degrees penetrating through the lens are reduced, light loss is reduced, and the irradiation angle of the light rays is enlarged.
Description
Technical Field
The invention belongs to the technical field of lamps, and particularly relates to a lens structure, a processing technology thereof and a lamp.
Background
In the plant and electricity industry, the passages or areas of equipment such as thermal power boiler platforms, steam turbines and the like, coal conveying galleries, coal washing plant galleries and the like need to meet the requirements of building lighting design standard GB50034-2004, wherein the standard specifies that the illumination requirement in such equipment or areas needs to reach 100 lux (Lx).
However, the lamps in the market still have the problems of small irradiation angle and insufficient brightness, so that the irradiation area of a working area is difficult to expand, and workers are easy to directly view the lamps to generate dazzling light during working, and are difficult to work for a long time under the irradiation environment of the lamps, so that the normal and efficient work of the workers is influenced.
Disclosure of Invention
One of the purposes of the embodiment of the invention is as follows: the utility model provides a lens structure, aims at solving among the prior art, lamps and lanterns have the angle of illumination little, luminance not enough and easily produce the technical problem of glare.
In order to solve the technical problem, the embodiment of the invention adopts the technical scheme that:
the lens structure is a transparent piece integrally formed by injection molding materials, and the injection molding materials are formed by mixing plastic materials and light scattering powder; the lens structure comprises a lens, wherein the lens is provided with two buses which are symmetrically arranged by the central axis on each projection surface passing through the central axis of the lens, the buses are spline curves, one ends of the two buses are respectively intersected with a connection point on the central axis, the other ends of the two buses are respectively connected with the connection point to form two first line segments, and the two first line segments are intersected at the connection point to form an obtuse angle.
Further, the plastic material is polycarbonate, and the plastic material and the light scattering powder respectively account for 99.6% and 0.04% of the injection molding material.
Furthermore, on each projection plane passing through the central axis of the lens, an extension line of a second line segment formed by connecting the other ends of the two buses is taken as an x-axis, the central axis of the lens is taken as a y-axis, and a curve equation of the buses is as follows: y is 0.0012 x3-0.0287 x2+0.2165 x + 55.5763.
Further, the lens structure is also provided with an installation part arranged on the periphery of the lens, and the installation part is provided with a plurality of through holes used for being connected with external equipment.
The lens structure provided by the invention has the beneficial effects that: compared with the prior art, the anti-dazzle lens structure has the advantages that the plastic material and the light scattering powder are mixed and injected to form the lens structure, so that light rays penetrating through the lens structure are subjected to diffuse reflection under the action of the light scattering powder, and the anti-dazzle effect is achieved; and on each projection plane passing through the central axis of the lens, the generatrixes on the two symmetrical sides of the central axis are spline curves and are respectively intersected with the connecting points on the central axis, the other ends of the two generatrixes respectively form two first line segments with the connecting points, and the two first line segments are intersected at the connecting points and form obtuse angles.
There is provided a process for manufacturing a lens structure according to any one of the preceding claims, comprising:
closing the die, wherein the temperature of the die is 100 ℃;
the injection molding machine performs injection molding, the injection molding material enters an inner cavity of the mold through a single dispensing opening on a nozzle, and the temperature of the nozzle is 315 ℃;
maintaining the pressure and cooling, wherein the pressure maintaining pressure is 140MPa, and the pressure maintaining speed is 15 g/s;
and opening the mold and taking out the lens structure.
Further, the lens structure is formed by injection molding through a hot runner mold.
Further, a charging barrel is arranged on the injection molding machine, the charging barrel comprises a first section, a second section, a third section, a fourth section and a fifth section which are sequentially distributed along the emergent direction of the injection molding material, the temperature of the first section is 325 ℃, the temperature of the second section is 320 ℃, the temperature of the fourth section is 290 ℃, and the temperature of the fifth section is 280 ℃.
Further, an injection molding channel is communicated between the nozzle and the charging barrel, the injection molding channel comprises a first channel, a second channel and a third channel which are sequentially distributed along the emergent direction of the injection molding material, the injection molding pressure of the injection molding material in the first channel is 130MPa, the injection molding speed is 99g/s, the injection molding pressure of the injection molding material in the second channel is 140MPa, the injection molding speed is 99g/s, the injection molding pressure of the injection molding material in the third channel is 140MPa, and the injection molding speed is 15 g/s.
According to the processing technology of the lens structure, the temperature of the mold during mold closing is set to be 100 ℃, the temperature of the nozzle during injection is set to be 315 ℃, the injection molding material formed by mixing the plastic material and the light scattering powder is injected into the inner cavity of the mold, pressure maintaining is carried out on the lens structure through pressure maintaining pressure of 140MPa and pressure maintaining speed of 15g/s, mold opening is carried out after cooling, processing of the lens structure is completed, processing and anti-dazzle effects of the lens structure are achieved, meanwhile, two first line sections formed on two buses are intersected at the connecting point of the central axis and form an obtuse angle, light rays with reflection angles larger than 90 degrees can be effectively reduced, light loss is reduced, and the irradiation angle of the light rays is enlarged.
Still provide a lamps and lanterns, including the lens structure of above-mentioned arbitrary, still include the lamp source board and locate lamp pearl on the lamp source board, lens structure locates the light-emitting side of lamp pearl.
Furthermore, the lamp beads are arranged as LED lamp beads, a plurality of LED lamp beads are arranged on the lamp source board, and the total luminous flux of the LED lamp beads is 9000 lm.
According to the lamp, by adopting the arrangement of the lens structure, light rays emitted by the lamp can be subjected to diffuse reflection under the action of the light scattering powder, so that an anti-dazzle effect is realized; compared with the existing common lamp with a spherical or cylindrical lens, the LED lamp can effectively reduce the light with the reflection angle larger than 90 degrees, reduce the light loss, improve the light utilization rate, and simultaneously enlarge the irradiation angle of the light, so that the LED lamp can be suitable for working on various different occasions.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the embodiments or the prior art description will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings may be obtained according to these drawings without inventive labor.
Fig. 1 is a perspective view of a lens structure according to an embodiment of the present invention;
FIG. 2 is a side view of a lens structure provided by an embodiment of the present invention;
FIG. 3 is a graph of FIG. 2;
fig. 4 is an illuminance analysis diagram of a lamp according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
1-a lens; 11-central axis; 111-attachment point; 12-a bus; 121 — a first line segment; 122-a second line segment; 2-a mounting portion; 21-a through hole; a-included angle.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1 to 3, the lens structure provided in the embodiment of the invention is a transparent element, and light of the lamp can pass through the lens structure to realize an illumination effect. The lens structure is formed by injection molding of an integral injection molding material, and the injection molding material is formed by uniformly mixing a plastic material and astigmatic powder, so that the lens structure can perform diffuse reflection on the transmitted light to realize an anti-dazzle effect. The lens structure includes lens 1, and on each plane of projection through axis 11 of lens 1, lens 1 has two generating lines 12, and two generating lines 12 set up with axis 11 symmetry and two generating lines 12 one end intersect with the tie point 111 of axis 11 respectively, and generating line 12 is the spline curve, and two generating lines 12 other ends are connected with tie point 111 respectively and form two first line sections 121, and two first line sections 121 intersect and enclose in tie point 111 department and form contained angle a, and this contained angle a is the obtuse angle.
In the embodiment of the invention, the plastic material and the light scattering powder are mixed and injected to form the lens structure, so that light rays penetrating through the lens structure are subjected to diffuse reflection under the action of the light scattering powder, and an anti-dazzle effect is realized; on each projection plane passing through the central axis 11 of the lens 1, the generatrixes 12 on two symmetrical sides of the central axis 11 are spline curves and are respectively intersected with the connecting point 111 on the central axis 11, the other ends of the two generatrixes 12 are respectively connected with the connecting point 111 to form a first line segment 121, the two first line segments 121 are intersected at the connecting point 111 to form an obtuse angle, compared with the existing common spherical or cylindrical lens 1, the light penetrating through the lens 1 can be controlled more effectively, when the light penetrates through the lens 1, the light with the reflection angle larger than 90 degrees can be effectively reduced, the light loss is reduced, the light utilization rate is improved, meanwhile, the irradiation angle of the light is enlarged, and the lens can be suitable for working on various different occasions.
Further, in this embodiment, the plastic material is polycarbonate (PC material), and the plastic material and the astigmatic powder respectively account for the proportion of moulding plastics material to be 99.6% and 0.04%, that is to say the lens structure is injection moulding by the PC material of the mixed oil astigmatic powder, can improve the comfort level of staff's work under the condition of effectively eliminating the glare influence of light, still can guarantee the luminousness of light, wherein because the mixed action of 99.6% PC material and 0.04% astigmatic powder, the luminousness scope of lens 1 is: 79% -80%, and the illumination of the light rays passing through the lens 1 is ensured.
Further, referring to fig. 3, in this embodiment, on each projection plane passing through the central axis 11 of the lens 1, an extension line of a second line segment 122 formed by connecting the other ends of the two bus bars 12 is an x-axis, the central axis 11 of the lens 1 is a y-axis, the two ends of the bus bars 12 are respectively connected to the x-axis and the y-axis, and a curve equation of the bus bars 12 is as follows: y is 0.0012 x3-0.0287 x2+0.2165 x +55.5763, which can more effectively improve the utilization rate of light, reduce the light with the reflection angle larger than 90 degrees, and reduce the loss of the light transmitted through the lens 1, i.e. improve the illumination of the light. And according to the curve design of the bus 12, the irradiation angle of the light rays penetrating through the lens 1 can be enlarged, the irradiation area of a working area is enlarged, and the efficient work of workers is facilitated.
Further, referring to fig. 1, in the present embodiment, the lens structure further includes a mounting portion 2 disposed on a periphery of the lens 1, and the lens structure is circular along a vertical projection plane of a central axis 11 of the lens structure, the lens 1 is also circular, and the mounting portion 2 is uniformly distributed on an edge of the lens 1.
Specifically, in the present embodiment, the mounting portion 2 is provided with a plurality of through holes 21 for forming connection with an external device, wherein a heat dissipation shell of a lamp or a lamp source plate of the lamp and the like can be connected with the mounting portion 2 through the through holes 21, thereby fixing the lens structure.
An embodiment of the present invention further provides a processing process of the lens structure provided in the above embodiment, including:
and (5) closing the mold, wherein the temperature of the mold is 100 ℃ during mold closing.
The injection molding machine is used for injection molding, the injection molding machine forms a lens structure by injecting molding materials into an inner cavity of a mold, wherein a nozzle is arranged on the injection molding machine, the injection molding materials enter the inner cavity of the mold through a single glue dispensing opening on the nozzle, and the temperature of the nozzle is 315 ℃ during injection molding. The injection molding material is injected into the inner cavity of the mold through a single dispensing opening to form a lens structure, and the dispensing opening can be automatically cut off when the lens structure is demolded. In addition, the injection molding material is in a thermoplastic fluid state in the process of injection molding in the flow channel, so that the pressure loss of the injection molding material in the flowing process can be reduced, and meanwhile, the formation of a bonding line of the lens structure can be reduced due to the arrangement of a single dispensing opening, so that the appearance of the lens structure is ensured.
Maintaining the pressure and cooling, wherein the pressure maintaining pressure is 140MPa, and the pressure maintaining speed is 15 g/s;
and opening the mold and taking out the lens structure.
In the embodiment, the temperature of the mold during mold closing is set to be 100 ℃, the temperature of the nozzle during injection is set to be 315 ℃, the injection molding material formed by mixing the plastic material and the light scattering powder is injected into the inner cavity of the mold, the pressure of the lens structure is maintained through the pressure maintaining pressure of 140MPa and the pressure maintaining speed of 15g/s, the lens structure is processed by opening the mold after cooling, the lens structure is processed and the anti-glare effect is achieved, the uniformity of mixed injection molding of the light scattering powder and the PC material can be enhanced, and the consistency and the anti-glare effect of the lens structure are enhanced. Meanwhile, the two first line sections 121 formed on the two buses 12 intersect at the connection point 111 of the central axis 11 to form an obtuse angle, and the temperature and pressure of the lens structure in the processing process can effectively ensure the formation of the obtuse angle, reduce the light with the reflection angle larger than 90 degrees, reduce the light loss, and enlarge the irradiation angle of the light.
Furthermore, in this embodiment, the lens structure is injection molded by using a hot runner mold, 99.6% of PC material and 0.04% of astigmatic powder are uniformly mixed in the injection molding machine and heated to form a thermoplastic fluid, and the injection material in the hot runner and a gate communicated with the hot runner can be always kept in a molten state by heating, so that the injection material can be accurately controlled in the injection process, and the molding precision of the lens structure is enhanced. And the arrangement of the sprue of the hot runner is beneficial to the transmission of pressure in the injection molding process, and the defects of depression, shrinkage cavity, deformation and the like of the lens structure in the molding process can be effectively avoided. In addition, the PC material and the light scattering powder can be mixed and heated to form thermoplastic fluid, so that the mixing uniformity of the PC material and the light scattering powder is enhanced, the uniform distribution of the light scattering powder on the lens structure can be ensured, and the consistency of the lens structure is ensured.
Further, in this embodiment, a charging barrel is arranged on the injection molding machine, the charging barrel includes a first section, a second section, a third section, a fourth section and a fifth section which are sequentially distributed along the emitting direction of the injection molding material, the temperature of the first section is 325 ℃, the temperature of the second section is 320 ℃, the heating action of the third section is closed, the temperature of the third section is not limited, the temperature of the fourth section is 290 ℃, and the temperature of the fifth section is 280 ℃, so that the injection molding material can be ensured to be in a thermoplastic fluid state in the emitting process, uniform mixing of the light scattering powder and the PC material is facilitated, molding of a lens structure is facilitated, and realization of an anti-glare function is facilitated.
Further, in this embodiment, an injection molding channel is communicated between the nozzle and the barrel, the injection molding channel includes a first channel, a second channel, and a third channel that are sequentially distributed along an exit direction of the injection molding material and are communicated with each other, an injection molding pressure of the injection molding material in the first channel is 130MPa, an injection molding speed is 99g/s, an injection molding pressure of the injection molding material in the second channel is 140MPa, an injection molding speed is 99g/s, an injection molding pressure of the injection molding material in the third channel is 140MPa, and an injection molding speed is 15g/s, so that the injection molding material is injected into an inner cavity of a mold, and a lens structure is formed and an anti-glare function is realized.
The invention further provides a lamp, which comprises the lens structure, and the lens structure is explained in detail in the embodiment, so that the details are not repeated.
Specifically, lamps and lanterns still include the lamp source board and locate the lamp pearl on the lamp source board, and the light-emitting side of lamp pearl is located to the lens structure, and the light that the lamp pearl sent sees through the lens structure, and the grading effect through the lens structure realizes shining.
Further, in this embodiment, the lamp beads are set as LED lamp beads, and the lamp source board is provided with a plurality of spaced LED lamp beads, and the total luminous flux combined by the plurality of LED lamp beads is 9000 lumens (lm), which can improve the illumination of the lamp.
Specifically, in the present embodiment, the lamps are generally disposed on one side of the channel with a width of 3 meters, and the distance between the lamps is 5 meters, as shown in fig. 4, in the practical experimental test application of the present embodiment, within a range of 3 meters × 25 meters below the lamps, the maximum illumination of the lamps is 239Lx, and the minimum illumination is 64Lx, so that the average illumination is 139Lx, which is much larger than the illumination requirement specified in "architectural lighting design standard", thereby improving the illumination of the lamps.
In the embodiment, by adopting the arrangement of the lens structure, light rays emitted by the lamp can be subjected to diffuse reflection under the action of the light scattering powder, so that an anti-dazzle effect is realized; compared with the existing common lamp with the spherical or cylindrical lens 1, the LED lamp can effectively reduce the light with the reflection angle larger than 90 degrees, reduce the light loss, improve the light utilization rate, and simultaneously enlarge the irradiation angle of the light, so that the LED lamp can be suitable for working on various different occasions.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A lens structure is characterized in that the lens structure is a transparent piece integrally formed by injection molding materials, and the injection molding materials are formed by mixing plastic materials and light scattering powder; the lens structure comprises a lens, wherein the lens is provided with two buses which are symmetrically arranged with the central axis on each projection surface passing through the central axis of the lens, the buses are spline curves, one ends of the two buses are respectively intersected with a connection point on the central axis, the other ends of the two buses are respectively connected with the connection point to form two first line segments, the two first line segments are intersected at the connection point to form an obtuse angle, so that light rays with reflection angles larger than 90 degrees are reduced, and the irradiation angles of the light rays are enlarged;
on a projection plane passing through the central axis of the lens, the extension line of a second line segment formed by connecting the other ends of the two buses is taken as an x axis, the central axis of the lens is taken as a y axis, and the curve equation of the buses is as follows:
y＝0.0012*x3-0.0287*x2+0.2165*x+55.5763；
the lens structure also comprises an installation part arranged on the periphery of the lens, and the installation part is provided with a plurality of through holes for forming connection with external equipment; the other end of the bus is directly connected with the mounting part.
2. The lens structure of claim 1, wherein the plastic material is polycarbonate, and the plastic material and the light scattering powder respectively account for 99.6% and 0.04% of the injection molding material.
3. A process for manufacturing a lens structure according to any one of claims 1 to 2, comprising:
closing the die, wherein the temperature of the die is 100 ℃;
the injection molding machine performs injection molding, the injection molding material enters the inner cavity of the mold through a single dispensing opening on a nozzle, and the temperature of the nozzle is 315 ℃;
maintaining the pressure and cooling, wherein the pressure maintaining pressure is 140MPa, and the pressure maintaining speed is 15 g/s;
and opening the mold and taking out the lens structure.
4. The process for manufacturing a lens structure according to claim 3, wherein the mold is a hot runner mold.
5. The process for manufacturing a lens structure according to claim 3, wherein a barrel is provided on the injection molding machine, the barrel comprises a first section, a second section, a third section, a fourth section and a fifth section which are sequentially arranged along the exit direction of the injection molding material, the temperature of the first section is 325 ℃, the temperature of the second section is 320 ℃, the temperature of the fourth section is 290 ℃, and the temperature of the fifth section is 280 ℃.
6. The manufacturing process of a lens structure according to claim 5, wherein an injection molding channel is communicated between the nozzle and the barrel, the injection molding channel includes a first channel, a second channel and a third channel sequentially distributed along an exit direction of the injection molding material, an injection molding pressure of the injection molding material in the first channel is 130MPa, an injection molding speed is 99g/s, an injection molding pressure of the injection molding material in the second channel is 140MPa, an injection molding speed is 99g/s, an injection molding pressure of the injection molding material in the third channel is 140MPa, and an injection molding speed is 15 g/s.
7. A lamp comprising the lens structure of any one of claims 1-2, further comprising a lamp source board and a lamp bead disposed on the lamp source board, wherein the lens structure is disposed on a light emitting side of the lamp bead.
8. The lamp as claimed in claim 7, wherein the LED beads are provided as LED beads, and the lamp source board is provided with a plurality of LED beads, and the total luminous flux of the LED beads is 9000 lm.
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| JP2014205411A (en) * | 2013-04-12 | 2014-10-30 | パナソニック株式会社 | Illumination device |
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