TW408233B - Some methods for manufacturing grating image - Google Patents

Abstract

Theoretically speaking, a method for producing a grating image needs the capabilities of recording the image with different spot size, position, grating pitch and grating orientation. Although some prior arts can match these requirements, the corresponding speeds during recording process are too slow. Also, a grating dot recorded by way of the used method gives a narrow view angle. This invention provides some new technologies where the mechanisms of guiding the laser beams and changing the recording position are newly designed. The recording speeds are increased. A design which can be used for recording a grating dot with wide viewing angle is also proposed.

Description

468¾ ^ ¾ V. Description of the invention (1) (Background of the invention) The present invention is a method for making raster images, which is used to make masters for holographic display films. For the production of masters of general holographic display films, senior technical personnel are required to shoot the real objects by hand. This production method can use raster arrays to make raster images and simulate holographic stereoscopic images. Making raster images and simulating holographic stereo images has been around for years. The basic principle used is that when a specific linear grating is exposed to a parallel white light source, it will wind colored light of a specific wavelength to a specific direction according to the direction of the grating and the grating pitch, that is, control the incident angle of the light source and the grating. The direction and pitch can determine whether the eye or other light receiver can see the grating has a specific color at a specific position. At this time, a variety of point-shaped linear gratings with different directions and pitches are arranged and combined, and the eyes can see different images at different positions. The simple linear raster image described above can only diffract a single angle of optical information at a point-like raster position, and is generally used to express the so-called dynamic effect. Integral holograms with three-dimensional effects' have a more complex raster form and can diffract multiple-view optical information at the same time at a single position. The current advanced technology can only make simple gratings. The arrangement of simple gratings must be used to simulate the effect of complex gratings, but the resolution and output speed must be lost. According to the basic principle of the single raster image, as long as the direction, pitch and size of the raster are controlled and properly arranged, a variety of different raster images can be produced. The following describes two prior techniques. Figure 1 is one of the prior art. This prior art uses a helium-cadmium laser

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Five 'invention description (2) 1 door 1 2, is: Γ' laser light enters the electronically controlled mechanical fast along the light path 81 ^ ^ mechanical shutter 21 is controlled by the control computer 7 via the signal line 91: & between to determine the exposure the amount. The laser light continues to follow the light path 8] into the light spot control device composed of transparent, basically, the light spot control is equipped with a beam expander 'lens 32. When the lens 32 is moved back and forth along the sleeve, it can control the diffusion or collection of the beam. Beam angle, and then the second and last two movements of the interference grating can be controlled by the electric displacement level "not shown" via the signal. Laser light along the light path 81 is reflected by the mirror 01: advance: the pilot device 4a 'reflector 01 The function is to deflect the light beam, but it is not necessary. The light guide device 4a is composed of a non-polarizing beam splitter 41 and a reflecting mirror 42 mounted on a mechanism that rotates with the optical axis as the rotation axis. Entering the light guiding device 'firstly, the non-polarized beam splitter "breaks the laser" into two paths, respectively, along the optical path 82 and the optical path 83, and along the optical path scale 8, the hit laser light is reflected through the reflecting mirror 42 to adjust the reflection The position and angle of the mirror 42 may intersect the laser light traveling along the optical path 82 with a specific position in space along the optical path 83 to form an interference standing wave. The grating can be recorded by placing the photoresist 1 51 at the place where the standing wave is formed. When the light guide is “rotated,” the direction of the grating will rotate accordingly. Therefore, the direction of the grating can be controlled by the rotation angle of 4a. The rotation angle of the light guide 4a is via a signal rotation line 93 by a rotating mechanism (not shown). The control computer 7 piece 51 is fixed on a two-dimensional motor-driven displacement platform 61, which can be used to perform a plane movement straight to the two. 纟 Different positions record different gratings. Different. The grids are arranged and combined on the photoresist sheet 51, Can make any movement of grating wheat-dimensional motor-driven displacement platform 61, and then control the signal by the signal I I surface

Page 6 ΑΛ raster image production method. Ptd V. Instructions (3) 408¾ ^-~-Brain 7 control. Base! Institute 2: The previous technology can achieve the automatic production of the raster image point control device 3a after expanding the beam, and then shoot the light. The first light mirror 41 separates two * sound soil v, 4 81 enters, and passes through the non-polarized beam splitting first. The optical path 82 and the optical path 83 advance to = interference, but since the optical path 82 and the optical path 83 are different, the size of the light spot where the optical path of the laser light on the photoresist sheet 51 crosses the optical path 在The first phase of light on the optical path is removed Γ 'can not obtain the extremely small interference light spots, making this

Make ultra-high resolution grating material. In addition, the interference angle of the light path 82 and the light path 83 cannot be changed first, that is, the raster images produced by it cannot be equipped with:, the methods are all traditional mechanical methods, plus the inertia of the moving object is quite large. The recording speed is not high, and the output of grating material is low. Figure 2 ^ The second technique. This prior art uses helium-cadmium laser 11 as a coherent light source. The laser light enters the acousto-optic modulation Η22 along the optical path 81. The acousto-optic shutter 22 is controlled by the control computer 7 via the signal line 96, and the shutter time P [determines the amount of exposure. The laser light continues to enter the light spot control device 3 & composed of lenses 31 and 32 along the light path 81. Basically, the light spot control device 3a is a beam expander, and the lens 32 moves along the optical axis ^: The beam's spread or beam angle controls the size of the interference grating. The movement of the lens 32 is controlled by a control computer 7 via a signal line 92 through an electric displacement platform (not shown). Laser light is reflected along light path 8 丨

Α Λ grating image production method. Ptd page 7 V. Description of the invention (4) 408233 Mirror 01 reflects into the light guide 4b ’The function of the mirror 01 is to deflect the light beam, which is not necessary. The light guide device 4b is composed of a non-polarizing beam splitter 41, a reflection 稜鏡 42, a reflection 稜鏡 43, a reflection 稜鏡 44, and a lens 45 mounted on a mechanism that rotates with an optical axis as a rotation axis. When the laser light enters the light guide device along the optical path 81 ', the laser light is first divided into two by the non-polarizing beam splitter 41. One of them is reflected by the polarizing beam splitter 41, and then passes through the reflector 44 and the lens 45 'to the laser light beam 51 where the laser light crosses and interferes with the light path 84. The other laser light passes through the polarizing beam splitter 41, passes through the reflection mirror 42, the reflection mirror 43 and the lens 45 'and reaches the laser light intersection interference point on the photoresist sheet 51 as the light path 85. The light path 84 passes through the reflection 稜鏡 44 reflects the advancing direction of moxibustion 'and the light path 85 passes through the reflection 稜鏡 4 3 after the reflection progresses. It must be parallel to the direction in which the light path 81 enters the light guide 4 b and enter the lens 45 perpendicularly. This can ensure that the intersection of the two laser lights intersects at the focal point behind the lens, and can ensure that the interference position of the two laser lights does not change when the light guide device flutters and rotates. The grating can be recorded by placing the photoresist sheet 51 at the place where two standing laser waves intersect. When the light guide 4b rotates, the direction of the light grid will rotate accordingly, so the direction of the light grid can be controlled by the rotation angle of the light guide. The rotation angle of the light guide device 4b is controlled by a control computer 7 via a signal line 93 through an electric rotating mechanism (not shown). The β non-polarized beam splitter 41 and the reflection unit 42 are mounted on a motor ordered by the light guide device. A dynamic displacement platform (not shown). This motor drives the displacement platform to drive the non-polarizing beam splitter 41 and the reflection beam 42 to move forward and backward along the rotation axis of the light guide device. As described above, the laser light of the light path 84 between the reflection 稜鏡 44 and the lens M, and the light path 85 between the reflection 稜鏡 43 and the lens 45

---- 408-233 ---_______ V. Description of the Invention (5) The f-rays are parallel to each other. When the non-polarizing beam splitter 41 and the reflection chirp 42 are moved back and forth along the rotation axis of the light guide 4b, the parallel distance between the two parallel laser lights can be changed. When the parallel distance is changed, the two parallel laser lights are focused by the lens 45, and the interference angle of the intersection interference at the focal point behind the lens 45 is also changed accordingly. Therefore, the position of the non-polarizing beam splitter 41 and the reflection beam 42 can be controlled. Record the pitch of the grating. The movement of the non-polarizing beam splitter 41 and the reflection beam 42 is controlled by a control computer 7 through a signal line 95 through an electric displacement platform (not shown). The photoresist sheet 51 is fixed on a two-dimensional motor-driven displacement stage 61, and can perform plane motion perpendicular to the plane to record different gratings at different positions. By arranging and combining different light bulbs on the photoresist sheet 51, an arbitrary raster image can be made. The movement of the two-dimensional motor-driven displacement platform 6 丨 is controlled by the control computer 7 via a signal line 94. The prior art shown in FIG. 2 has other functions in addition to the functions of controlling the raster direction and controlling the recording position of the raster of the prior art shown in FIG. 1. Since the path lengths of the light path 84 and the light path 85 are the same, the laser light intersects with the light path at the photoresist sheet 51, and the size of the light spot on the light path 84 and the light spot on the light path 85 are the same. The recording grating The area can be made small, so it can produce raster images with super high resolution. Moreover, the prior art can control the pitch size of the recording raster, so you can specify a specific color on the light habitat image. But this—the technology still has the same major shortcoming as the previous technology, which is that the motion control method used is the traditional mechanical method, plus the inertia of the moving object's Sib grating recording speed Not high, the output of raster images is low.

A: \ Raster image production method ptd --- 408233 ---- V. Description of the invention (6) In addition, the use of simple grating arrays and combinations to simulate the effect of complex gratings must lose resolution and output speed. (Overview of the Invention) From the principle of the raster image, we can know that to produce a raster image that meets various requirements, it is necessary to be able to control the exposure amount, size, direction, pitch, and recording position of the recording raster. According to the requirements of the manufacturing industry, the output of the production method must be fast in order to meet the economic requirements. Although the prior art as shown in FIG. 2 can meet the principle requirements' produce various required raster images', it does not have sufficient output speed 'and cannot meet the requirements of industrial economy. The reason is that it is unable to achieve fast change of light guide action and fast change of raster recording position. In addition, each recording raster point can only display information from a single perspective. This is also the main reason for the slowness and insufficient table specifications of the prior art.

Aiming at the shortcomings of the prior art, the present invention develops a new production method, which has a fast independent light guiding method and a method of changing the recording position of a grating, and can simultaneously record information from multiple perspectives, so as to meet the requirements of I in grating image production and industrial economy. Benefit requirements. The reason why the speed of light guide conversion in the prior art is slow is that many components must be moved or rotated at the same time, and the huge mechanical structure that sets up these components. The present invention develops a fast method of light guide for individual light rays. The reason why the speed of the recording raster of the prior art is slow is that the recording position of the raster is changed by relying on the movement of the conventional magnetically driven displacement platform. The present invention develops a local scanning method that can quickly change the recording position of a raster on a small area. After the local scanning of a small area is completed, it is moved to the traditional displacement method.

408233 V. Description of the invention (7) ___ Take another fast partial scan for the next area. The present invention will also provide a multi-view controller. Recording points can record multi-view stomach information, and can produce a raster image similar to a raster fruit. Full image effect (schematic part) Picture 1: Picture 2: Picture 3: Picture 4: Picture 5: Picture 6: Picture 7: Picture 8: Picture 9: Picture 1 0 Fig. 11 Fig. 12 (Fig. No. part) Known prior art (1). Known prior art (2). The basic method for manufacturing a linear grating according to the present invention. Schematic diagram of laser light translation using glass plate rotation Schematic diagram of laser light translation using lens translation / Schematic diagram of laser light translation using mirror deflection. Partial scanning method for translating laser light using acousto-optic deflector (1). ~ ° Local scanning method (b). : A feasible example of linear raster image production method. : The basic method of the present invention for making multi-angle complex gratings 01 reflector 11 22 acousto-optic shutter 3 a spot control device 41 0 glass plate 42, 43, 44 reflector 419 acousto-optic deflector helium-cadmium laser 21 electronically controlled mechanical shutter 23 electro-optic adjuster 31, 32 lens 4a, 4b light guide device 0 beam splitting ^ 417, 418 two-dimensional deflection reflection 414, 416, 45 transparent ^ 46, 47 beam splitter 51 photoresistance sheet

Page 11A: \ Raster image production method.ptd V. Description of the invention (8) 6 1 Displacement platform 86 '87 Laser light 91, 92, 93, 94 100 Lens 101 Reflector 1 0 3 Two-dimensional scanning mirror 1 〇5 lens 8 3 spatial light emphasis transformer (Detailed invention) Computer 81, 82, 83, 84, 85 light path 86a, 86b, 86c, 86d, 87c laser light 95, 96 signal line l0a, 10b partial scan Apparatus 102, 104 focus lens Al, A2 lenticular lens The basic principles of making a simple linear grating and a multi-view complex light book in the present invention will be described below, and a light guide method, a local scanning method, and a multi-view control method will be explained step by step. Fig. 3 is a basic method for making a simple linear grating in the present invention. The laser light 86 and the laser light 87 enter the lens 100 in parallel with each other. After the lens 100 focuses and interferes, an interference standing wave with a specific pitch and direction can be formed on the photoresist sheet 51. The photoresist sheet 5 1 is photosensitive. The interference standing wave can be converted into a grating. If the positions of the laser light 86 and the laser light 87 can be controlled, gratings of any pitch and direction can be made. The following is the g of controlling the laser light position in the present invention. ♦ Figure 4 shows the method of translating the laser light by rotating the glass plate. a When the light 86a is incident on the glass plate 41o, if the glass plate 4i0 and the light 86a are not perpendicular, because the refractive index of the glass plate is different from that of the air, according to Schneier's law, the translation amount and direction of the laser light 86a The thickness, refractive index, deflection angle, and deflection direction of the glass plate 410 are determined. Fig. 5 is a method for shifting laser light by using lens translation. When the light 86b is incident on the lens 414, the lens 414 will deflect the laser light and

A: \ The method of making raster images.ptd Page 408233 V. Description of the invention (9) ~~ Pass the laser light 86b through the front focus F of the lens 414, and the laser light 86b deflects the direction of the lens through the lens 416. When the lens 416 The back focal point "When it coincides with the intersection of the main surface P of the lens 414 and the incident light 86b, the direction of the emitted light will be parallel to the direction of the incident light ', and the translation amount and direction of the laser light 86b can be determined by the back focal length of the lens 416, the lens The front focal length of 414 and the translation amount and direction of the lens 414 ^ along the principal plane p are determined. / σ Figure 6 shows the method of translating laser light by using mirror deflection. The laser light 86c is deflected by the mirror 417, and the laser light is deflected back by the lens 416 '. When the rear focal point f of the lens 416 and the intersection of the mirror 4 17 with the incident light ^ and the center of rotation of the mirror 417 are assured The direction of the emitted light is parallel to the original optical axis, and the translation amount and direction of the laser light 86c can be determined by the back focal length of the lens 416, the deflection angle and direction of the mirror 417. Fig. 7 is a method for translating laser light using an acousto-optic deflector. The light 86d is deflected by the acousto-optic deflector 41Θ and deflected by the lens 416. 'When the rear focal point f of the lens 416 coincides with the turning point of the acousto-optic deflector 4 丨 9', the direction of the emitted light can be guaranteed. It is parallel to the original optical axis, and the translation amount and direction of the light 86d can be determined by the back focal length of the lens 416 and the light deflection angle and direction of the acousto-optic deflector 419. If the acousto-optic deflector is replaced by an electro-optic deflector, the same component arrangement is used and still has the same function. In fact, those who are familiar with this field know that the correct use of acousto-optic deflectors requires the cooperation of other optical components. For simplicity, we will not repeat them here. The above is the method of guiding light in the present invention '. With the method of guiding light, linear gratings of any pitch and direction can be produced. The following continues to explain the parts of the present invention

A: \ Method for making raster images. Ptd page 13 ---__ JLD8233 Five 'invention description (10): --- scanning method * ►, when the direction of parallel incident light does not change, if the lens is translated, it is incident, The focus position will shift with the lens. Fig. 8 is a ^ local scanning method using this principle ^ Two laser lights 86 and laser light 87 enter the local scanning device 10a in parallel, are reflected by a reflecting mirror 101, and are focused by normal incidence. The mirror 102 'is composed of basic geometry It can be known from optics that after the laser light 86 and the laser light 87 are focused by the focusing lens 102, the two lights must intersect with each other at point A. Point A is the focal point before the focusing lens 102. Since the relative positions of the laser light 86 and the laser light 87 can be arbitrarily adjusted by the light guide device, gratings of any distance and direction can be produced. "The grating can be recorded by placing the photoresist sheet 51 on point A. The local scan is achieved by moving the focusing lens 102 on a plane parallel to the photoresist sheet 51. This is because point A will move with the focusing lens 102 and its relative position will not change. Therefore, when the focusing lens 102 When moving on a plane parallel to the photoresist sheet 51, the interference point (point A) is naturally scanned on the photoresist sheet. If the incident direction of the parallel incident light is changed, the position of the focusing lens is unchanged, and the focal position of the incident light will change with the direction of the incident light. Figure 9 is a partial scanning method using this principle. The two laser beams 86 and 87 enter the local scanning device iQb in parallel. 'After reflecting through the two-dimensional scanning mirror, if the focusing lens 10 is incident perpendicularly, it can be known from basic geometry' that the laser beam 86 and f beam 87 After focusing by the focusing lens 104, the two lights must intersect at the focal point C in front of the focusing lens 104. For example, the two-dimensional scanning mirror 103 is deflected, so that the laser light 86 and the laser $ 8 ° 7 have no perpendicular incidence. Focus lens 104, at which point the interference point will fall at point D and

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V. Description of the invention (11) 'It is located on the focal plane B of the focusing lens 104. The distance between the ip point and the C point can be controlled by the deflection angle.' The position of the photoresist sheet 51 coincides with the focal plane B, and a partial scan can be borrowed. This is achieved by the deflection of the two-dimensional scanning mirror 03. The laser light direction can also be changed by other methods such as acousto-optic deflector. Fig. 10 is a feasible example of the method for making linear raster images. Nitrogen laser 11 was used as the coherent light source. The electro-optic modulator 23 performs exposure control. The beam expander composed of the lens 31 and the lens 32 is controlled as a light spot. The beam splitter α divides the laser light 81 into two application light paths 86c and 87c, which can be independently guided, respectively. The two-dimensional deflection mirrors 417 and 418 are used to change the reflection angle of the application light paths 86c and 87c, and the lens 4ι6 is used to apply the light. The angles of the optical paths 86c and 87c are deflected back so that they are parallel to each other. In this way, the relative positions of the optical paths 86c and 87c can be arbitrarily controlled to determine the pitch and direction of the grating. The focusing lens 102 intersects the laser light 86c and the laser light 87C, generates an interference standing wave, and uses the movement of the lens 102 to cause the interference point to scan on the photoresistor 51 quickly and locally. The photoresist sheet 51 can record an interference standing wave and convert it into a grating. The two-dimensional motor-driven displacement stage 6 丨 can move the photoresist sheet 51 to the next position after each rapid partial completion, and perform another scan of the interference standing wave on the two photoresist sheets 51, and the position of the lens 32 can be used This is because the lenses 41 6 and 102 form a microscope structure. The size of the interference standing wave on the photoresist 51 is the size of the laser light on the mirrors 417 and 418 divided by the magnification of the microscope. Position Γ light and the size of 4181. Linear Γ rotation of lens 32, two-dimensional planar motion of focusing lens Π 2 0, and 2

—— ~~~~ 4m2ZZ ^-V. Description of the invention (12) Controlled by the control computer 7 to achieve the purpose of driving by the driver. 〆Figure 10 shows a possible arrangement of components. With basic optics, different arrangements can be made using similar principles. For example, the application optical path is not necessarily two. You can add 1 as required. The application optical paths 86c and 87c do not need to be changed with the guidance of the optical path. The control of only one application optical path can be achieved. Combining the lens 416 and the focusing lens 102 into a single lens is also a feasible arrangement 'without affecting its function. The light-guiding device does not have to perform two-dimensional light-guiding ', and it can achieve the purpose of only one-dimensional light-guiding, but the degree of freedom of control is reduced. The local scanning device does not necessarily perform one-dimensional scanning, and can only perform one-dimensional scanning. In addition, the focusing lens 102 can be fixed, but this method will lose the function of local scanning. FIG. 11 is a basic method for manufacturing a multi-view complex grating in the present invention. The reference light R and the linear light 〇 are incident on the lens in parallel, and after being focused by the lens 105 ′ the reference light R and the linear light 〇 will intersect with each other at the focal point of the lens and interfere with each other. According to the basic principle of holography, 'If the linear light 〇 is regarded as a combination of many object lights 〇1 to ⑸, because the object lights 01 to On are focused by the lens 105, and the interference angle with the reference light r is different, the object light The light 01 to 〇n can represent the individual viewing angle information on the recording grating. 'At this time, the exposure ratio of the object light 〇1 to 〇n can be controlled, and then the recording, the diffraction efficiency ratio of each angle of the grating can be controlled. If the object light is a multi-line light, then a technician familiar with the principle of holography can easily know that it can record not only multi-view information, but also multi-color information. The exposure ratio control of each part of the object light ’can use a liquid crystal modulator or a spatial light wave modulator (

Method for making ΑΛ raster image. Ptd page 16 -40B ^ ia_ 5. Description of the invention (13)

Light Spatial Modulator) and other feasible methods. Figure 12 shows a feasible example of a method for making complex raster images. A helium-cadmium laser 11 is used as a coherent light source. The electro-optic modulator 23 performs exposure control. The lens 3 and the beam expander composed of the mirror 32 are controlled as light spots. The beam splitter 46 divides the laser light 81 into the application light path reference light r and the object light 〇, and the object light 〇 forms a linear object light through the lenticular lenses A1 and A2 to form a linear beam, and then passes through the spatial light emphasis transformer A3 The exposure ratio of each part of the linear light is controlled to determine the diffraction efficiency ratio of the recording grating at each viewing angle. After the reference light rule and the objective light are guided to the same propagation direction through the beam splitter 47, they enter the focusing lens 100 through the reflecting mirror 101, and the reference light R and the objective light are collected at the focal point through the focusing lens 100. Intersect and interfere with each other to form interference standing waves. The photoresist sheet 5 is placed at the formation of the interference standing wave to convert the interference standing wave into a complex grating that can express multi-view information, and controls its recording position by means of the displacement platform 61, and combines the dot-shaped grating into a grating image. The positions of the electro-optic modulator 23, the lens 32, the spatial light emphasis modulator A3, and the displacement platform 6i are all controlled by a control computer 7. Fig. 12 shows a feasible arrangement of components' capable of recording complex gratings of single color and multiple viewing angles. As long as the arrangement of components is slightly changed, complex gratings of multiple colors and multiple viewing angles can be recorded. For example, instead of using a single line, three lines of light are used to represent the multi-view information of three colors of red, blue, and green. Using the principle of mixed light, multi-color and multi-view raster images can be produced. Or, instead of using linear light, a large-area expanded beam is used to enter a two-dimensional spatial light emphasis transformer. The direct effect of using the spatial light emphasis transformer to control the exposure of individual colors and viewing angles can also achieve the same effect. If you add a light guide method in Figure 12 ^, you can independently guide the application light path, change the reference light and

Α Λ raster image production method. Ptd page 17_408233 V. Description of the invention (14) The interference angle of the object light can be the mixed exposure image of repeated exposure in the monochromatic image technology that can change the color and reconstruction angle. The production of three-dimensional images can be changed. "The present invention proposes the concept of single-angle control of light, a multi-view light method that can produce and integrate holographic effects, and two feasible local control methods. There are two possible exceptions to these methods, and they can be combined. 1 For example, the feasible example in Fig. 10 has a linear grating and complex scanning. Because of the possible methods (concluding remarks), in addition to the various methods proposed by the present invention, the present invention proposes a method that minimizes motion and minimizes motion, greatly improving the angle information of motion control. Therefore, the method of making raster images, in addition to the production speed requirements of the multi-angle complex raster film manufacturing industry, changes the reconstruction angle of the raster, and the multi-angle complex raster color technology, which expresses the reconstruction angle of the multi-color raster, and provides more guidance. The concept, partly scan out a straight raster image showing dynamic effects, and propose a four-scan method and a feasible combination with each other. In addition to this, many feasible raster shadows can be added with the ability to control the approximate raster by multiple perspectives. In addition to the various methods that can be used to meet the grating, the different methods can respond to the speed of movement that must be overcome. It also proposes that compared with other previous technologies, it can produce general previous images, and it can improve production more than normal. The economical effect of the 'record can be changed, similar to the full multi-view angle of light is conducive to the concept of large-area tracing and multi-line raster image feasible guidance of the multi-view control method to improve the image production method can be simultaneously made a fast Described. The components required for image production have reduced inertia to the most and recorded more at the same time. The technology proposed by the present invention cannot meet the previous technology.

A: \ Raster image production method.ptd

IHHIH Page 18

Claims (1)

At least six, apply for patent Fangu I A method of making a raster image by using dot makeup and including the following parts: C1) Coherent light source, A C 2) Interference light source required by the exposure controller 2 to generate a point grating. (3) At least two of them should control the exposure of the dot grating. Use an independent light guide to use the light path 'and apply light path to at least one of them. (4) The light guide method I1 can be equal to the pitch and direction of the dot-shaped light sugar. ⑴Condensing lens, the light path is guided independently. Interference in standing waves. The light beams of the application optical path are converged to the same position to generate (6) a photosensitive substance, and an interference standing wave is recorded. (7) Photosensitive substance position Jiang Gu Move the photosensitive substance in the photosensitive substance forest to change the interference standing wave (8) White motion control method; 2. '2. According to item i of the scope of patent application :: point control. The method of making the image: t & t is combined with a point grating to form a raster shadow and rotate to achieve it. The guided M method is a method that can use a glass plate. 3. The method of making a point image according to item i of the patent application scope, in which the so-called guided light is synthesized with a grating image. The “method” is the use of lens translation. 4. The method of making an image according to item 1 of the scope of patent application, in which the so-called guided and synthesized grating effect is achieved. It is possible to use mirror deflection. 5. According to the method of making point image according to item χ in the scope of the patent application, the so-called light guide / combination into a grating shadow is available, but sound and light deflection can be used. Method for making ΑΛ raster image. Ptd 〇 408233 6 'Patent-applied fixture achieved by deflected light. 6_ —A method for making a raster image by combining a point grating, at least including the following parts: (1) Coherent light source 'is an interference light source required to generate a point grating. (2) Exposure control method 'can control the exposure of the dot grating. C3) At least two application optical paths' and independent guidance of at least one of them can control the pitch and direction of the point grating. (4) Light guide method, which independently guides the application light path. (5) Condensing lens' converges the light beams of the application optical path to the same position to generate interference standing waves. The beam of the applied optical path can be condensed by a condenser lens. (6) The position of the partial scanning method can be changed. (7) Photosensitive substance 'records interference standing waves. (8) Sensitive substance displacement method Keya Su ## Recording on Sensitive Substances: Moving the Sensitive Substances to Change the Interfering Standing Wave ⑴Automatic Control Method 'Controls each control point. 7. According to the method described in item 6 of the scope of the patent application, a method of making a grid image, in which the desired point grating is combined into a light lens and moved to achieve it. Wanfa is a method for making a thumb image according to Focus 8 according to item 6 of the scope of the patent application, in which the so-called localized > shaped thumb is combined into a light lens deflection and fixed focusing lens to achieve the Tian method. Is the use of anti-9. A point grating is used to combine light into the following parts:. To make the first grid image, at least ’ Α Λ raster image production method. Ptd page 20 6. Application for patent scope 408233 (1) Coherent light source 'is the interference light source required to generate the point grating. (2) Exposure control method can control the exposure of the point grating β. (3) At least two application optical paths, and at least one of the applications should be applied to each part. The exposure ratio control can control the diffraction efficiency ratio of the dot grating. (4) Multi-view angle control method, which can control the light beams on the application optical path by the exposure ratio. (5) Condensing lens' converges the light beams on the application optical path to the same-interference interference standing wave. "Optical path & position of each viewing position (6) Photosensitive substance 'records interference standing waves. (7) Sensitive substance displacement method, which can move the photosensitive substance to change the recording position of interference on the photosensitive substance. (8) The automatic control method controls each control point. 10. A method for making a grid image using a dot grating as described in item 9 of the scope of the patent application, wherein a so-called multi-view control method is achieved by using a liquid crystal modulator.疋 『利 11. According to item 9 of the scope of the patent application, a method of using a raster image of a point grating is described, in which the so-called multi-view control method is achieved by using a spatial light wave modulator.疋 了 利 1 2. —A kind of system that uses point gratings to combine into raster images Contains the following parts: ’(1) Coherent light source, the interference light source required to generate point gratings. (2) Exposure control method, which can control the exposure of dot grating ^ (3) At least two applied optical paths, and at least one of them 108233 Six patent application parks ~ '----- Each: ϊ Controlled by exposure ratio ’can control the diffraction ratio of each angle of the point grating. (4) Multi-view control method, which can control the exposure ratio in the application optical path. (5) Condensing lens is applied to each part of the upper beam to converge the beams on the application optical path to generate interference standing waves. Position production (7) The local scanning method can change the position where the beam of the applied optical path is focused. Lens I. (7) Photosensitive substance 'records interference standing waves. (8) =: Γ Shift method ’: A photosensitive material can be moved to change the recording position β of the interference standing wave on the phosphorescent material. (9) An automatic control method that controls each control point. 13. A method of making a point raster image according to Item 12 of the patent application park, in which a so-called local scanning n-grid combination is achieved by moving a focusing lens. The method is Keli i. 4. A method of making a point grating image according to item 2 of the scope of the patent application, in which the so-called localized first grid group a synthesis is achieved using a mirror deflection and fixed focusing lens. ，， 可可 利 15. — A kind of point grating is used to form a grating shadow, which includes the following parts: Table method, at least (1) homogeneous light source, required to generate a point grating (2) Helio light control method, can Controls the source of point gratings. (3) At least two application light paths, independently guide at least I, and at least 4 of them: apply j to the light path to extend the parts of the application road A: \ Raster image production method.ptd Page 22 408233 VI. Patent Application Range ~~ ^ ~ Control with exposure ratio ’can control the ratio of the diffraction ratio of each angle of the point grating and control the reconstruction angle of the point grating. (4) Light guide method 'can provide independent guidance for the application light path. (5) Multi-viewpoint control method ′ can control each part of the light beam on the application optical path ^ at the exposure ratio, ^ (6) Condensing lens ′ converges the light beam on the application optical path to the same interference standing wave. (7) Partial scanning method 'can change the position of the beam of the applied optical path after it has been condensed. & (8) Photosensitive material, recording interference standing wave. (9) Sensitive substance displacement method, which can move the photosensitive substance to change the recording position of the dry surface on the photosensitive substance. (10) An automatic control method that controls each control point. 1 6. A method of making a raster image using point gratings as described in item 15 of the scope of the patent application, where the so-called light guide method is achieved by using glass plate rotation β attack 1 7. According to the patent application A method for making a raster image using a point grating as described in item 15 of the scope, wherein the so-called light guide method is a method that can be achieved by using mirror translation, D β 1 8. According to item 15 of the scope of the patent application A method for making a raster image by combining a point grating is used. The so-called light guide method is achieved by using mirror deflection. ^ 1 9. A method of making a raster image using point gratings according to item 15 of the scope of the patent application, where the so-called light guide method is the use of sound 408233 6. Scope of patent application Achieved by a light deflector deflecting light. _l_l ΑΛ raster image production method.ptd page 24