CN107748465A - A kind of 3D printer and LCD backlight source device based on liquid crystal imaging principle - Google Patents
A kind of 3D printer and LCD backlight source device based on liquid crystal imaging principle Download PDFInfo
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- CN107748465A CN107748465A CN201711130043.1A CN201711130043A CN107748465A CN 107748465 A CN107748465 A CN 107748465A CN 201711130043 A CN201711130043 A CN 201711130043A CN 107748465 A CN107748465 A CN 107748465A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 34
- 238000003384 imaging method Methods 0.000 title claims abstract description 8
- 239000004411 aluminium Substances 0.000 claims abstract description 21
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 21
- 238000004020 luminiscence type Methods 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 11
- 229920005989 resin Polymers 0.000 claims abstract description 11
- 230000003287 optical effect Effects 0.000 claims description 4
- 210000004209 hair Anatomy 0.000 claims 1
- 238000007639 printing Methods 0.000 abstract description 13
- 238000010146 3D printing Methods 0.000 description 8
- 238000007711 solidification Methods 0.000 description 5
- 230000008023 solidification Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 238000002347 injection Methods 0.000 description 4
- 239000007924 injection Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000009738 saturating Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000001149 thermolysis Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133628—Illuminating devices with cooling means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Liquid Crystal (AREA)
Abstract
The present invention relates to a kind of LCD backlight source device, including aluminium base and the multi-group light-emitting component for being arranged on aluminium base upper surface；Luminescence component includes focal length retainer, the convex lens at the top of focal length retainer, the light source positioned at focal length retainer bottom；Light source is arranged on aluminium base.Further relate to a kind of 3D printer based on liquid crystal imaging principle, including solidified holding tray, reservoir, liquid crystal display；The bottom of reservoir is provided with mould release membrance, the solidified holding tray for moving up and down formula is placed in the top of mould release membrance, print area is formed between the lower surface of solidified holding tray and the upper surface of mould release membrance, light-cured resin is provided with reservoir, liquid crystal display is located at the lower section of mould release membrance, and liquid crystal display is located at the top of the convex lens of LCD backlight source device.The present invention can send uniform directional light, have a higher print speed, higher printing precision, belong to the technical field of 3D printer.
Description
Technical field
The present invention relates to 3D printing technique, more particularly to a kind of 3D printer and LCD backlight based on liquid crystal imaging principle
Source device.
Background technology
Since there is the practical 3D printer of First, there is development with rapid changepl. never-ending changes and improvements in 3D printing technique.Occur
The 3D printer of different materials, forming principle.But then evening is many for the 3D printing technique starting based on LCD, generation occurs within 2014
Photosensitive resin printer of boundary's First based on LCD liquid crystal imaging technologies.Through in a few years developing, the 3D printer based on LCD is sudden and violent
Expose its maximum technical problem：LCD backlight, backlight directly determine the print quality of LCD printers, at present, are based on
The 3D printing quality of LCD liquid crystal is not high, i.e., the 3D printing based on LCD liquid crystal can have the problem of various.Subject matter
The lamp source for showing as prior art is diverging light, not over secondary optical design smooth go, can not allow source parallel project and
Parallel area source can not be formed.The serious printing precision for restricting printer, speed, breadth and printing success rate.It is existing following
Several printing solutions：
The first：Based on LED point light source and Fresnel Lenses scheme, spot light can only be used, to Fresnel Lenses precision
Require very high with assembly precision, LED point light source power is low, print speed is slow, the big light decay of focal length is serious, installation dimension is big, can not
Large format is printed, increases power light-emitting hot spot, it is big by the parallel injection optical aberrations of Fresnel Lenses refraction, it is impossible to turn well
Change the light of parallel injection into；
Second：Scheme based on LED battle array, it is impossible to be converted to parallel rays, light intensity inequality, intersect diffraction ghost image；
The third：Scheme based on LED battle array and grid, it is impossible to be converted to parallel rays, light intensity is uneven, the manufacture of grid
Require high with installation accuracy, intersect diffraction ghost image.
4th kind：Based on array LED and lens arrangement, it is impossible to be converted to parallel rays, light intensity inequality, intersect diffraction weight
Shadow.
The content of the invention
For technical problem present in prior art, the purpose of the present invention is：A kind of LCD backlight source device, energy are provided
Send uniformly and do not intersect the directional light of diffraction.
It is a further object of the present invention to provide a kind of 3D printer based on liquid crystal imaging principle, has higher printing speed
Degree, higher printing precision, higher printing success rate, large-breadth printing can be achieved.
In order to achieve the above object, the present invention adopts the following technical scheme that：
A kind of LCD backlight source device, including aluminium base and the multi-group light-emitting component for being arranged on aluminium base upper surface；It is luminous
Component includes focal length retainer, the convex lens at the top of focal length retainer, the light source positioned at focal length retainer bottom；Light source is pacified
On aluminium base.
It is further：Multi-group light-emitting component is in horizontal direction and longitudinal direction successively by arrangement, focal length retainer
Outline be in quadrangular shape.After the part illumination that light source is sent is mapped to focal length retainer, light can be predominantly absorbed, and light will not penetrate
Focal length retainer, so ensure that the light that the light source in some focal length retainer is sent will not be irradiated to adjacent focal length retainer
Inside, avoid causing multiple refraction and then form useless astigmatism.
It is further：The lower surface of aluminium base is provided with radiating module, and radiating module includes heat sink and is integrally disposed upon
Multiple radiating fins of heat sink lower surface, multiple radiating fins are set gradually along horizontal direction or longitudinal direction.Such energy
Play good thermolysis, after light source luminescent, caused heat is radiated by aluminium base, heat sink and radiating fin.
Radiating module can have polytype, a variety of radiating modes, and radiating module of the present invention is one of which.
It is further：The inside of focal length retainer is provided with reflector, and the lower end of reflector is provided with what is be adapted with light source
Through hole；Reflector and focal length retainer are split-type structural or integral structure.The light that light source is sent, a portion light can shine
It is mapped on reflector, is then reflected again by reflector, projected from convex lens, can so improves the utilization rate of light.
It is further：Convex lens are planoconvex spotlight, and the lower surface of planoconvex spotlight is plane and upper surface is to project upwards
Cambered surface, planoconvex spotlight and focal length retainer are integral type structure；
Or convex lens are convex-convex lens, the upper surface of convex-convex lens is the cambered surface that projects upwards and lower surface is downward
Prominent cambered surface, convex-convex lens and focal length retainer are integral type structure；
Or convex lens are concave-convex lens, the upper and lower surface of concave-convex lens is the cambered surface projected upwards, concavo-convex
Lens and focal length retainer are integral type structure.
These three species of convex lens, it can according to circumstances select the species of required convex lens.
It is further：Convex lens, focal length retainer and reflector are integral type structure.
It is further：The convex lens of all luminescence components are integral type structure, the focal length retainer of all luminescence components
For integral type structure, the focal length retainer of the convex lens of all luminescence components and all luminescence components is split-type structural.It is this
The structure of integral type, processing charges can be reduced, reduces cost.
A kind of 3D printer based on liquid crystal imaging principle, including solidified holding tray, reservoir, liquid crystal display；The bottom of reservoir
Portion is provided with mould release membrance, and the solidified holding tray for moving up and down formula is placed in the top of mould release membrance, the lower surface of solidified holding tray and mould release membrance
Print area is formed between upper surface, is provided with light-cured resin in reservoir, liquid crystal display is located at the lower section of mould release membrance, liquid crystal display position
In the top of the convex lens of LCD backlight source device.The purpose of 3D printing can be realized.
Generally speaking, the invention has the advantages that：
Using the LCD backlight source device of the present invention, it can meet that the selectivity solidification liquid crystal display of 3D printer is wanted to light source
Ask (selectivity solidification liquid crystal display perfect light source be can vertically without intersect diffraction pass through liquid crystal display light source, this is relative to liquid crystal
Screen is vertical incidence, and it is the directional light of zero angle that actual light source, which is sent) so that 3D printer has higher printing speed
Degree, higher printing precision, can realize large-breadth printing, and can print more small details, such as：Small circular hole, it is square,
The minutias such as lines.What this LCD backlight source device was sent is uniform directional light.
Brief description of the drawings
Fig. 1 is the front view of 3D printer of the present invention, provided with reflector.
Fig. 2 is the front view of 3D printer of the present invention, is not provided with reflector.
Fig. 3 is the structural representation of LCD backlight source device.
Fig. 4 is the structural representation of focal length retainer and convex lens first direction.
Fig. 5 is focal length retainer and the structural representation of convex lens second direction.
Fig. 6 is the explosive view of LCD backlight source device, and all convex lens are integral, and all focal length retainers are one
's.
Fig. 7 is the stereogram of 3D printer.
Fig. 8 is the structural representation of planoconvex spotlight.
Fig. 9 is the structural representation of convex-convex lens.
Figure 10 is the structural representation of concave-convex lens.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described in detail.
It is now attached to what is occurred in Figure of description for the ease of uniformly checking each reference inside Figure of description
Icon note is unitedly described as follows：
1 is convex lens, and 2 be focal length retainer, and 3 be reflector, and 4 be light source, and 5 be liquid crystal display, and 6 be mould release membrance, and 7 be liquid storage
Groove, 8 be light-cured resin, and 9 be solidified holding tray, and 10 be heat sink, and 11 be radiating fin, and 12 be planoconvex spotlight, and 13 be that convexo-convex is saturating
Mirror, 14 be concave-convex lens.
With reference to shown in Fig. 1, Fig. 2, Fig. 3, a kind of LCD backlight source device, including aluminium base and it is arranged on aluminium base upper surface
Multi-group light-emitting component.Luminescence component is arranged on the upper surface of aluminium base.Luminescence component includes focal length retainer, is protected positioned at focal length
The convex lens of top of the trellis are held, the light source positioned at focal length retainer bottom.Light source is arranged on aluminium base, light source and focal length retainer
It is the structure of split, i.e., light source and focal length retainer are independent parts, are not integrally formed.With reference to Fig. 3, Fig. 4, Fig. 5 institute
Show, after light source is arranged on aluminium base, then focal length retainer covered into light source, i.e. bottom of the light source in focal length retainer.
Aluminium base can also be substituted with copper base.
For multi-group light-emitting component in horizontal direction and longitudinal direction successively by arrangement, the outline of focal length retainer is in four
Prism-shaped.The shape for being shaped as quadrangular of focal length retainer, from overlook direction, focal length retainer is rectangle.In transverse direction
On direction, the side of some focal length retainer is together with the contacts side surfaces of adjacent focal length retainer, in a longitudinal direction, some
The side of focal length retainer is also together with the contacts side surfaces of adjacent focal length retainer.After light is by convex lens, into directional light,
The focal length retainer of multi-group light-emitting component postpones by cloth, can form parallel area source.Focal length retainer is provided with light-absorbing coating,
Black can be selected in light-absorbing coating or dark color is not easy reflective ink.When focal length retainer and convex lens are integral type, focal length
The side of retainer and convex lens is required for setting light-absorbing coating；If the convex lens of all luminescence components are integral type structure, institute
The focal length retainer for having luminescence component is integral type structure, then the side of convex lens need not set light-absorbing coating.Light source is sent
Part illumination be mapped to focal length retainer after, light can be predominantly absorbed or reduce reflection, and light will not penetrate focal length retainer, also will not
Projected from the side of convex lens, so ensure that the light that the light source in some focal length retainer is sent will not be irradiated to adjacent focal length
The inside of retainer, i.e., the light source in each focal length retainer is separate, does not interfere with each other.
The lower surface of aluminium base is provided with radiating module, and radiating module includes heat sink and is integrally disposed upon heat sink lower surface
Multiple radiating fins, multiple radiating fins set gradually along horizontal direction or longitudinal direction.Aluminium base is arranged on heat sink
Upper surface, radiating fin structure in the form of sheets.Good thermolysis can so be played, after light source luminescent, caused heat leads to
Aluminium base, heat sink and radiating fin is crossed to be radiated.
The inside of focal length retainer is provided with reflector, and the lower end of reflector is provided with the through hole being adapted with light source；Reflector
It is split-type structural or integral structure with focal length retainer.After focal length retainer covers light source, light source is located in reflector
On heart through hole, light that light source is sent, a portion light can be irradiated on reflector, then be reflected again by reflector, from convex lens
Projected in mirror, can so improve the utilization rate of light.Reflector is bowl-shape structure, reflector can by plastic injection, and
Reflector electroplating surface minute surface.
With reference to shown in Fig. 8, Fig. 9, Figure 10, convex lens have a variety of species：Planoconvex spotlight, concave-convex lens or convex-convex lens.It is flat
The lower surface of convex lens is that the upper surface of plane and planoconvex spotlight is the cambered surface projected upwards, the upper surface of concave-convex lens and following table
Face is the cambered surface projected upwards, and the upper surface of convex-convex lens is that the lower surface of the cambered surface and convex-convex lens projected upwards is downward
Prominent cambered surface.These three species of convex lens, it can according to circumstances select the species of required convex lens.
Convex lens, focal length retainer, the combining form of reflector have varied：One kind is that convex lens are planoconvex spotlight,
Planoconvex spotlight and focal length retainer are integral type structure, and reflector can be set in focal length retainer or be not provided with reflector；One
Kind is that convex lens are convex-convex lens, and convex-convex lens and focal length retainer are integral type structure, be can be set in focal length retainer reflective
Bowl is not provided with reflector；One kind is that convex lens are concave-convex lens, and concave-convex lens and focal length retainer are integral type structure,
Reflector can be set in focal length retainer or be not provided with reflector；One kind is that convex lens, focal length retainer and reflector are one
Body formula structure.
Convex lens, focal length retainer described in epimere, in the combining form of reflector, luminescence component is single part,
Two adjacent luminescence components are not integral structures.With reference to shown in Fig. 6, for multi-group light-emitting component, can also so it make：
The convex lens of all luminescence components are integral type structure, and the focal length retainers of all luminescence components is integral type structure, Suo Youfa
The focal length retainer of the convex lens of optical assembly and all luminescence components is split-type structural, i.e., all convex lens be it is integral,
All focal length retainers are integral, and convex lens and focal length retainer are split type structures, and all focal length retainers are
During the structure of one, the wall thickness of focal length retainer should be rationally set so that the light that the light source in some focal length retainer is sent
It will not be projected from adjacent convex lens.All convex lens are integral types, and all focal length retainers are integral types, this integral type
Structure can again with the structures to form of another group of integral type together with., can when all focal length retainers are integral structures
To be molded using lighttight material integral production.Wherein, convex lens can be that planoconvex spotlight, concave-convex lens or convexo-convex are saturating
Mirror, according to actual conditions, it can select to set or be not provided with reflector in focal length retainer.The structure of this integral type, can
To reduce processing charges, cost is reduced.
It can be applied with reference to shown in Fig. 7, in above-mentioned LCD backlight source device on a printer, i.e., a kind of 3D printer,
Including solidified holding tray, reservoir, liquid crystal display.The solidified holding tray for moving up and down formula is placed in the top of mould release membrance, and solidified holding tray can be with
Move up and down, an elevating mechanism can be used, drive solidified holding tray to move up and down.The bottom of reservoir is provided with mould release membrance, liquid storage
The bottom of groove is hollow, and mould release membrance is arranged on to the bottom of reservoir, then light-cured resin would not fall down.Solidification support
Print area is formed between the lower surface of disk and the upper surface of mould release membrance, the lower surface of solidified holding tray is deposited to the upper surface of mould release membrance
In gap, the gap space is print area.Light-cured resin is provided with reservoir, liquid crystal display is located at the lower section of mould release membrance,
And liquid crystal display is located at the top of the convex lens of LCD backlight source device.The 3D printer of the present invention is selectively saturating based on liquid crystal display
Light principle, the 3D printing of high quality can be realized.The liquid crystal display that the present invention mentions refers in particular to selectivity solidification liquid crystal display.
The distance of light source to convex lens should rationally be set so that after light passes through convex lens, change into directional light injection, you can
Rationally to set the height of focal length retainer.The LCD backlight source device of the present invention is applied on 3D printer, uses original
Reason is：After light source sends light, part light reflects through reflector, and then light projects from convex lens, and this time is projected into directional light, more
The light that the light source of group luminescence component is sent can form parallel area source directive liquid crystal display, liquid crystal display selectivity printing opacity, through liquid crystal
After light-cured resin of the light irradiation of screen in the bottom of reservoir, print area is irradiated by light, light-cured resin can be solidified into
Type, the resin of solidification can be bonded on solidified holding tray, and solidified holding tray gradually moves upwards；Liquid crystal display continues selective printing opacity, and light is solid
Change resin and be finally superimposed as threedimensional model, so as to realize 3D printing.
Above-described embodiment is the preferable embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any Spirit Essences without departing from the present invention with made under principle change, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (8)
- A kind of 1. LCD backlight source device, it is characterised in that：Including aluminium base and the multi-group light-emitting for being arranged on aluminium base upper surface Component；Luminescence component includes focal length retainer, the convex lens at the top of focal length retainer, the light positioned at focal length retainer bottom Source；Light source is arranged on aluminium base.
- 2. according to a kind of LCD backlight source device described in claim 1, it is characterised in that：Multi-group light-emitting component is in horizontal direction With longitudinal direction successively by arrangement, the outline of focal length retainer is in quadrangular shape.
- 3. according to a kind of LCD backlight source device described in claim 1, it is characterised in that：The lower surface of aluminium base is provided with radiating Module, radiating module include heat sink and are integrally disposed upon multiple radiating fins of heat sink lower surface, multiple radiating fin edges Horizontal direction or longitudinal direction is set gradually.
- 4. according to a kind of LCD backlight source device described in claim 1, it is characterised in that：The inside of focal length retainer is provided with anti- Light bowl, the lower end of reflector are provided with the through hole being adapted with light source；Reflector and focal length retainer are split-type structural or one Formula structure.
- 5. according to a kind of LCD backlight source device described in claim 1, it is characterised in that：Convex lens are planoconvex spotlight, plano-convex The lower surface of lens is plane and upper surface is the cambered surface projected upwards, and planoconvex spotlight and focal length retainer are integral type structure；Or convex lens are convex-convex lens, the upper surface of convex-convex lens is the cambered surface and the lower surface that project upwards to be downwardly projected Cambered surface, convex-convex lens and focal length retainer are integral type structure；Or convex lens are concave-convex lens, the upper and lower surface of concave-convex lens is the cambered surface projected upwards, concave-convex lens It is integral type structure with focal length retainer.
- 6. according to a kind of LCD backlight source device described in claim 4, it is characterised in that：Convex lens, focal length retainer and anti- Light bowl is integral type structure.
- 7. according to a kind of LCD backlight source device described in claim 2, it is characterised in that：The convex lens of all luminescence components are Integral structure, the focal length retainer of all luminescence components is integral type structure, the convex lens of all luminescence components and all hairs The focal length retainer of optical assembly is split-type structural.
- 8. a kind of 3D printer based on liquid crystal imaging principle of LCD backlight source device using described in claim 1, it is special Sign is：Including solidified holding tray, reservoir, liquid crystal display；The bottom of reservoir is provided with mould release membrance, moves up and down the solidified holding tray of formula The top of mould release membrance is placed in, print area is formed between the lower surface of solidified holding tray and the upper surface of mould release membrance, is set in reservoir There is light-cured resin, liquid crystal display is located at the lower section of mould release membrance, and liquid crystal display is located at the top of the convex lens of LCD backlight source device.
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| CN201711130043.1A CN107748465A (en) | 2017-11-15 | 2017-11-15 | A kind of 3D printer and LCD backlight source device based on liquid crystal imaging principle |
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| CN109732908A (en) * | 2019-01-22 | 2019-05-10 | 李世波 | Light source assembly and printer |
| CN111070687A (en) * | 2019-12-31 | 2020-04-28 | 上海天马微电子有限公司 | 3D printing device |
| US10901279B2 (en) | 2018-09-05 | 2021-01-26 | Shanghai Tianma Micro-electronics Co., Ltd. | Liquid crystal display panel and 3D printer |
| CN114087560A (en) * | 2021-11-26 | 2022-02-25 | 深圳市洋明达科技有限公司 | Photocuring 3D printer base light diffusion structure |
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Application publication date: 20180302 |