CN106814415B - The production method of naked eye 3D grating mold - Google Patents
The production method of naked eye 3D grating mold Download PDFInfo
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- CN106814415B CN106814415B CN201611198357.0A CN201611198357A CN106814415B CN 106814415 B CN106814415 B CN 106814415B CN 201611198357 A CN201611198357 A CN 201611198357A CN 106814415 B CN106814415 B CN 106814415B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/18—Diffraction gratings
- G02B5/1847—Manufacturing methods
- G02B5/1852—Manufacturing methods using mechanical means, e.g. ruling with diamond tool, moulding
Abstract
The invention patent relates to a kind of mould manufacturing methods, and in particular to a kind of production method of naked eye 3D grating mold.The invention solves existing 3D grating mold can not be applied on big screen display device, and the mode of screen splicing not can guarantee grating lines high-precision, it is low at height, problem not easy to install.The present invention on grating grinding tool by way of laterally carving, and by control gate away from center to the distance on grating mold surface, accurately to calculate the radius of mold roller, so that the distance between grating lines that the mold is produced are at consistency Infinite Cyclic, the imaging of grating is not influenced, the grating lines number for needing to carve in the number of teeth and mold roller of the gear of mold one end installation is consistent, ensure that the horizontal accuracy for carving seam.The invention has the benefit that providing a kind of horizontal production method for carving stripe grating mold, solve the problems, such as that existing grating mold cannot produce big screen display device, at low cost, easily, the precision of grating lines is high for installation.
Description
Technical field
The present invention relates to a kind of mould manufacturing methods, and in particular to a kind of production method of naked eye 3D grating mold.
Background technique
At present universal grating material Mold Making be all use vertical ring-shaped stripe die width mostly 1.5 meters with
Under, but the liquid crystal display of game now is mostly transverse screen i.e. transverse width always greater than longitudinal width, due to 1.5 meters with
Under mold generally can only production application at 55 cun and in following display equipment, therefore be applied to 55 cun or more of equipment die
Wide cut is not just much of that, can only use splicing, but splices at high cost, installation hardly possible, and the precision of grating lines is not high.
Summary of the invention
It laterally carves, can be applied directly on big screen display device the problem to be solved in the present invention is to provide a kind of,
And it can guarantee grating lines high-precision, low cost, the production method of naked eye 3D grating mold easy to install.
In order to solve the above technical problems, the present invention adopts the following technical scheme:
The production method for designing a kind of naked eye 3D grating mold, includes the following steps；
(1) grating parameter is determined
According to the gratings strips number n carved on the pitch a and grating mold of market and Product Requirement Design grating mold；
Wherein, pitch is the distance between die surface horizontal raster lines；
(2) it determines mold roller radius, makes mold roller
Mold roller is cylindrical type, according to the pitch a and gratings strips number n in step (1), with two light adjacent on grating mold
The angle that corresponding two mold radius of grid are formed is α, and the length at pitch center to the center of circle is b, pitch center to grating mold
The distance on surface is c, and grating mold radius is r, then has c=r-b, α=360 °/n,
,
As c≤0.005mm, grating mold radius r meets the requirements, and grating mold radius is mold roller radius；So
Afterwards according to calculated mold roller radius r, corresponding mold roller is made；
(3) gear is installed
A gear is fixedly mounted in one end of the resulting mold roller of step (2), gear rotation direction and mold roller roll
Direction is consistent and synchronous, and the number of teeth of the gear is equal to the gratings strips number n on mold roller needed to carve；
(4) grating lines are carved
It is installed to cogged mold roller is filled in step (3) on engraving equipment, the gear is by transmission device and delays
Walk motor drive connection；The carving device of engraving equipment is parallel to mold roller central axes direction in die roll surface and laterally carves
It carves, after having carved a grating, motor driven gear of walking unhurriedly suspends after rotating a tooth, and carving device starts to carve next light
Grid, engraving complete backgear and are rotated further by a tooth, and such repetitive operation, when gear rotates after a week, mold roller completes engraving, then
Gear is removed from mold roller, mold is vacantly placed, grating mold completes.
Preferably, in step (1), pitch a's is designed as determining via following methods:
Following formula is first passed through to determine the radix of pitch a, then further according to grating upper surface to liquid crystal display upper surface
The refractive index of thickness and intermediate medium is finely adjusted to obtain pitch a to the radix of pitch a:
Radix=liquid crystal display physical points of pitch a away from one third × Z,
Wherein Z is integer, and 3≤Z≤8.
Preferably, the mold roller is copper facing steel rider.
Preferably, in the step (3), gear is fixed on mold roller one end by fixed pin.
Preferably, in the step (4), the engraving equipment is numerical controlled engraving and milling device.
Preferably, during the step (4) carve grating lines, the surface smoothness of the mold roller is ▽
10。
Preferably, during the step (4) carve grating lines, the control errors of grating pitch are ± 0.001
In millimeter.
Preferably, in the step (4), carving device includes engraving cutter head, carves the customization procedure of cutter head are as follows: first root
According to grating pitch, thickness, the corresponding radius of grating substrate refractive index calculating cutter head radian are focused, then according to cutter head radian and carving
Enter knife amount customization engraving cutter head when quarter.For the precision for guaranteeing engraving, engraving cutter head is import cutter head.
The beneficial technical effect of the present invention lies in:
1. provide a kind of horizontal production method for carving stripe grating mold, solve existing grating mold and cannot produce large-size screen monitors to show
The problem of equipment, in the case where equivalent die width, laterally engraving production grating using size than traditional engraving side
Formula application size is high by 50%.
2. more at low cost than Mosaic screen, installation is easy, and the precision of grating lines is high, intermediate also doing without splicing trace
It disturbs, the display effect of screen is more preferable.
3. calculating the exact numerical of mold roller radius R by formula, it is ensured that be in the lines of die surface engraving
Integral multiple so that the distance between grating lines produced are at consistency Infinite Cyclic, thus will not because grating lines it
Between distance cause there are inconsistent naked eye 3D imaging go wrong.
4. the setting pair C value range, it is not too big effectively to control C value, to avoid due between grating line
Radian height it is inconsistent, cause production grating focus thickness on each section there are deviations, make the clear of naked eye 3D effect
Not high situation is spent to occur.
5. the number of teeth of gear is consistent with the gratings strips number n carved on mold roller, it ensure that the horizontal accuracy for carving seam, keep away
Exempt to occur carving after a week due to tolerance according at seam can clearly be seen that the case where.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that the mold roller after gear is installed in the present invention:
Fig. 2 is the schematic diagram in the face A-A of Fig. 1；
Wherein, 1 is mold roller, and 2 be gear.
Specific embodiment
Specific embodiments of the present invention will be described in further detail with reference to the accompanying drawings and examples；
Embodiment 1: a kind of production method of naked eye 3D grating mold makes the production side of the grating mold on 50 cun of 4K screens
Method includes the following steps；
(1) grating parameter is determined
According to the gratings strips number n carved on the pitch a and grating mold of market and product demand setting grating mold；
Wherein, pitch is the distance between die surface horizontal raster lines, and pitch a's is designed as, and passes through formula:
Radix=liquid crystal display physical points of pitch a away from one third × 5,
The radix for calculating pitch a, then according to grating upper surface to the thickness of liquid crystal display upper surface and the folding of intermediate medium
Penetrating the value that rate is finely adjusted to obtain pitch a to the radix of pitch a is 0.465mm；Gratings strips number n is 1500.
(2) it determines mold roller radius, makes mold roller
As depicted in figs. 1 and 2, mold roller 1 is cylindrical type, is copper facing steel rider, is according to the pitch a in step (1)
0.465mm and gratings strips number n is 1500, the folder formed with corresponding two mold radius of two gratings adjacent on grating mold
Angle is α, and the length at pitch center to the center of circle is b, and the distance at pitch center to grating mold surface is c, and grating mold radius is
R has c=r-b,
α=360°/n=360°/1500=0.24°
Because of c≤0.005mm, grating mold radius r meets the requirements, and producing radius r is 111.010457mm's
Mold roller 1.
(3) gear is installed
Radius r is that a tooth is fixedly mounted by fixed pin in one end of the mold roller 1 of 111.010457mm in step (2)
Wheel 2, as shown in Figure 1,2 rotation direction of gear is consistent and synchronous with 1 rotating direction of mold roller, 2 number of teeth of gear is 1500.
(4) grating lines are carved
The corresponding radius of radian of graver head is first calculated according to the pitch of grating, focusing thickness, grating substrate refractive index,
The engraving cutter head for entering the customization import of knife amount when then according to the corresponding radius of cutter head radian and engraving；Then the knife that will have been customized
Head is mounted on the carving device of engraving equipment, and engraving equipment is numerical controlled engraving and milling device, then the mold roller 1 for being equipped with gear 2 is consolidated
On numerical controlled engraving and milling device, engraving cutter head is parallel to 1 central axes direction of mold roller on 1 surface of mold roller and carries out lateral carving for Dingan County
It carves；Gear 2 is sequentially connected with motor of walking unhurriedly by transmission device；When engraving, after engraving cutter head has carved a grating, electricity of walking unhurriedly
Machine band moving gear 2 rotates tooth pause, and engraving cutter head starts again at engraving structure, after engraving completes a grating, transmission device
Band moving gear 2 continues to rotate a tooth again, and so on, when mold roller 1 completes engraving to the rotation of gear 2 after a week, engraving is completed
After remove gear 2, mold is vacantly placed, grating mold is made.The surface smoothness for the grating mold wherein carved reaches ▽
10, the error of grating pitch is positive and negative 0.001 millimeter.
The present invention is described in detail above in conjunction with drawings and examples, still, those of skill in the art
Member is it is understood that without departing from the purpose of the present invention, can also carry out each design parameter in above-described embodiment
Change, forms multiple specific embodiments, is common variation range of the invention, is no longer described in detail one by one herein.
Claims (8)
1. a kind of production method of naked eye 3D grating mold, includes the following steps；
(1) grating parameter is determined
According to the gratings strips number n carved on the pitch a and grating mold of market and product demand setting grating mold；
Wherein, pitch is the distance between die surface horizontal raster lines；
(2) it determines mold roller radius, makes mold roller
Mold roller is cylindrical type, according to the pitch a and gratings strips number n in step (1), with two gratings pair adjacent on grating mold
The angle that two mold radius answered are formed is α, and the length at pitch center to the center of circle is b, pitch center to grating mold surface
Distance be c, grating mold radius is r, then have c=r-b, α=360 °/n,
,
As c≤0.005mm, grating mold radius r meets the requirements, and grating mold radius is mold roller radius；Then root
According to calculated mold roller radius r, corresponding mold roller is made；
(3) gear is installed
A gear, gear rotation direction and mold roller rotating direction is fixedly mounted in one end of the resulting mold roller of step (2)
Consistent and synchronous, the number of teeth of the gear is equal to the gratings strips number n on mold roller needed to carve；
(4) grating lines are carved
It is installed to cogged mold roller is filled in step (3) on engraving equipment, the gear passes through transmission device and electricity of walking unhurriedly
Machine transmission connection；The carving device of engraving equipment is parallel to mold roller central axes direction in die roll surface and laterally carves,
After having carved a grating, motor driven gear of walking unhurriedly suspends after rotating a tooth, and carving device starts to carve next grating, carving
It carves completion backgear and is rotated further by a tooth, such repetitive operation, when gear rotates after a week, mold roller completes engraving, then from mould
Gear is removed on tool roller, mold is vacantly placed, grating mold completes.
2. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, in step (1), pitch a
Be designed as via following methods determine:
The radix of pitch a is determined by following formula:
Radix=liquid crystal display physical points of pitch a away from one third × Z,
Wherein Z is integer, and 3≤Z≤8.
3. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, the mold roller is copper plated steel
Roller.
4. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, in the step (3), institute
It states gear and mold roller one end is fixed on by fixed pin.
5. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, in step (4), the carving
Quarter equipment is numerical controlled engraving and milling device.
6. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, it is carved in the step (4)
During grating lines, the surface smoothness of the mold roller is10。
7. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, it is carved in the step (4)
During grating lines, the control errors of grating pitch are in ± 0.001 millimeter.
8. the production method of naked eye 3D grating mold according to claim 1, it is characterized in that, in the step (4), carving
Engraving device includes engraving cutter head, carves the customization procedure of cutter head are as follows:
The corresponding radius of cutter head radian is first calculated according to grating pitch, focusing thickness, grating substrate refractive index, then according to cutter head
Enter knife amount customization engraving cutter head when radian and engraving.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611198357.0A CN106814415B (en) | 2016-12-22 | 2016-12-22 | The production method of naked eye 3D grating mold |
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|---|---|---|---|
| CN201611198357.0A CN106814415B (en) | 2016-12-22 | 2016-12-22 | The production method of naked eye 3D grating mold |
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| CN106814415A CN106814415A (en) | 2017-06-09 |
| CN106814415B true CN106814415B (en) | 2019-02-19 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110598350A (en) * | 2019-09-24 | 2019-12-20 | 贵州航天精工制造有限公司 | Design method of hobbing die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2381244A1 (en) * | 1999-08-09 | 2001-02-15 | Alcan International Limited | Process of producing diffraction gratings on the surfaces of articles |
| CN102193310A (en) * | 2011-05-17 | 2011-09-21 | 西安交通大学 | Method for forming grating for machine tool measurement in two-step solidifying rolling pressing forming manner |
| CN102294905A (en) * | 2011-05-17 | 2011-12-28 | 河南三阳光电有限公司 | Process for preparing lenticular grating by silk-screen printing |
| CN102645752A (en) * | 2011-02-21 | 2012-08-22 | 乐金显示有限公司 | Manufacturing device of a film patterned retarder for a three dimensional display device |
| CN202956497U (en) * | 2012-12-14 | 2013-05-29 | 四川省宜宾普什集团3D有限公司 | Longitudinal grating and setting roller for producing same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4635561B2 (en) * | 2004-10-29 | 2011-02-23 | ソニー株式会社 | Roll mold manufacturing method and roll mold |
| WO2013112890A1 (en) * | 2012-01-28 | 2013-08-01 | Unipixel Displays, Inc. | Systems and method for making parallax filters using flexographic printing |
-
2016
- 2016-12-22 CN CN201611198357.0A patent/CN106814415B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2381244A1 (en) * | 1999-08-09 | 2001-02-15 | Alcan International Limited | Process of producing diffraction gratings on the surfaces of articles |
| CN102645752A (en) * | 2011-02-21 | 2012-08-22 | 乐金显示有限公司 | Manufacturing device of a film patterned retarder for a three dimensional display device |
| CN102193310A (en) * | 2011-05-17 | 2011-09-21 | 西安交通大学 | Method for forming grating for machine tool measurement in two-step solidifying rolling pressing forming manner |
| CN102294905A (en) * | 2011-05-17 | 2011-12-28 | 河南三阳光电有限公司 | Process for preparing lenticular grating by silk-screen printing |
| CN202956497U (en) * | 2012-12-14 | 2013-05-29 | 四川省宜宾普什集团3D有限公司 | Longitudinal grating and setting roller for producing same |
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