TW201627745A - Imaging displacement module - Google Patents

Abstract

An imaging displacement module is adapted to an optical device to switch image positions of a plurality of sub-images. The imaging displacement module includes a carrying base and a rotating base. The carrying base is adapted to control the rotating base to rotate along an axis back forth with limited angles, such that the sub-images projected on a screen shifted a first distance along the horizontal direction and a second distance along the vertical direction. Alternatively, the carrying base is adapted to control the rotating base to rotate relative to a biaxial of a reference plane, such as the sub-images move for a distance in one of moving directions.

Description

Imaging displacement module

The invention relates to an imaging displacement module, and in particular to an imaging displacement module capable of improving image resolution.

Generally, the rear projection display product mainly generates images by the optical engine and projects on the screen. In order for the image resolution of the optical engine to be projected on the screen to be higher, the optical engine needs to use a higher resolution display element. In addition, today's ultra-high resolution LCD displays are available in 3840x2160 and 4096x2160 resolutions. Relatively speaking, today's high-definition resolution (Full HD) rear projection display products provide the resolution that is not in line with market demand, so the rear projection display products require higher resolution to meet the needs of the market. However, since the display device of higher resolution has a higher cost, how to use a low-resolution pixel light valve to achieve a high-resolution image frame effect in order to improve the display device manufacturing cost. Rate and cost reduction have become a problem to be solved.

The present invention provides an imaging displacement module that provides relatively high resolution.

An imaging displacement module of the present invention is suitable for use in an optical device to switch an imaging position of a plurality of sub-images. The imaging displacement module includes a carrier base and a rotating base, and the rotating base has an optical component portion and a rotating shaft. The rotating base is pivotally connected to the carrying base, and the carrying base is adapted to control the rotating base to vibrate back and forth at an angle, so that the sub-images are simultaneously moved by the first distance and the vertical direction in the image forming position in the horizontal direction. The imaging position moves a second distance. The diagonal of the optical element portion is parallel to the axis of the shaft.

Based on the above, in an exemplary embodiment of the present invention, the carrying base of the imaging displacement module is adapted to control the rotating base to vibrate back and forth within an angle, so that the sub-image is simultaneously moved by the first distance in the horizontally-imaged position and The imaging position in the vertical direction is moved by the second distance. Alternatively, the carrier base of the imaging displacement module is adapted to control the biaxial rotation of the rotating base relative to the reference plane to move the sub-images a distance along one of the plurality of moving directions. Therefore, the optical device of the exemplary embodiment of the present invention can be used to project a relatively high resolution image with a relatively low resolution reflective light valve.

The above described features and advantages of the invention will be apparent from the following description.

100, 200‧‧‧ optical devices

426a‧‧‧ coil holder

110, 210‧‧‧ Lighting system

112, 212‧‧‧ Light source

114, 214‧‧ ‧beam

114a, 214a, 500‧‧‧ sub-images

116, 216‧‧‧ color wheel

117, 217‧‧ ‧ light column

118, 218‧‧‧ lens group

119‧‧‧Internal total reflection稜鏡

120‧‧‧Digital micromirror device

130, 230‧‧‧ projection lens

140‧‧‧Vibration mechanism

219‧‧‧稜鏡

220‧‧‧Reflective light valve

240, 1000a, 1000b, 1000c, 1000d, 1000e, 1940‧‧‧ imaging displacement module

242, 246‧‧‧ first vibration mechanism

242a, 244a, 322‧‧‧ Optical Components Division

244‧‧‧Second vibrating mechanism

240‧‧‧Image Displacement Module

410, 1100‧‧‧ bearing base

412‧‧‧Magnetic material holder

414a, 414b, M1, M2, M3, M4, M5, M6‧‧‧ magnetic materials

420, 1200‧‧‧ rotating base

422‧‧‧Optical Components Division

426b‧‧‧ coil

428‧‧‧ shaft

430‧‧‧ axis

432‧‧‧ holes

400‧‧‧ screen

1110‧‧‧First carrying frame

1120‧‧‧second carrier frame

1300‧‧‧Flexible parts

1310‧‧‧The first elastic pair

1311‧‧‧First elastic parts

1312‧‧‧Second elastic parts

1320‧‧‧Second elastic pair

1400‧‧‧Actuating components

1410‧‧‧First actuating assembly

1420‧‧‧Second actuation assembly

1500‧‧‧Optical Components Division

1610‧‧‧First shaft

1620‧‧‧second shaft

1900a, 1900b‧‧‧3D printing equipment

1910‧‧‧forming trough

1912‧‧‧Light sensitive materials

1920‧‧‧Projection device

1930‧‧‧ Lifting platform

1932‧‧‧Printing area

X‧‧‧ first direction

Y‧‧‧second direction

424‧‧‧ bearing seat

426, C1, C2, C3, C4, C5, C6‧‧‧ coil modules

XY1‧‧‧ third direction

XY2‧‧‧ fourth direction

Z‧‧‧ fifth direction

X', Y', X'Y'1, X'Y'2, X", Y" ‧ ‧ directions

S‧‧‧ reference plane

w‧‧‧Width

NW‧‧‧ neck width

T‧‧‧thickness

B‧‧·Image beam

OB‧‧‧3D printed objects

1 is a schematic structural view of an optical device.

2 is a schematic structural view of an optical device according to an embodiment of the invention.

3 is a schematic view showing the imaging of an optical device according to an embodiment of the present invention.

4 is a schematic structural view of an imaging displacement module according to an embodiment of the invention.

Figure 5 is a cross-sectional side view of the embodiment of Figure 4 taken along the line D-D.

Figure 6 is a cross-sectional side view of the embodiment of Figure 4 of the present invention taken along the line A-A.

FIG. 7 is a schematic structural diagram of an imaging displacement module according to another embodiment of the present invention.

Figure 8 is a cross-sectional side view of the embodiment of Figure 7 taken along the line D-D.

Figure 9 is a cross-sectional side view of Figure 7 taken along line A-A of the present invention.

10A, 11A, and 12A are respectively schematic structural views of an imaging displacement module according to different embodiments of the present invention.

10B, 11B, and 12B are top views of the imaging displacement module of the embodiment of Figs. 10A, 11A, and 12A, respectively.

10C, 11C, and 12C are cross-sectional side views of the imaging displacement module of the embodiment of Figs. 10A, 11A, and 12A, respectively.

FIG. 13A is a schematic diagram showing a schematic direction of movement of a sub-image according to an embodiment of the present invention.

13B and 13C are schematic diagrams showing the results of imaging displacement of the sub-image of the embodiment of FIG. 13A.

FIG. 14A is a schematic diagram showing a moving direction and an imaging position of a sub-image according to another embodiment of the present invention.

FIG. 14B is a schematic diagram showing the imaging position of the sub-image when the rotating base of the embodiment of FIG. 14A rotates in different directions in a frame time. FIG.

FIG. 15 is a perspective view showing the structure of an imaging displacement module according to another embodiment of the present invention.

FIG. 16A is a schematic diagram showing a moving direction of a sub-image according to another embodiment of the present invention. intention.

FIG. 16B is a schematic diagram showing the sub-image imaging position of the embodiment of FIG. 16A.

FIG. 17A is a perspective view showing the application of the imaging displacement module to the inside of the projection lens according to an embodiment of the invention.

FIG. 17B is a perspective view showing the application of the imaging displacement module to the inside of the projection lens according to another embodiment of the present invention.

FIG. 18A is a perspective view showing the structure of an imaging displacement module according to an embodiment of the invention.

FIG. 18B is a perspective view showing the structure of the first elastic member of the imaging displacement module of the embodiment of FIG. 18A.

18C is a diagram showing the relationship between amplitude and time of the first elastic member of the imaging displacement module of the embodiment of FIG. 18A.

Figure 18D is a graph showing the amplitude versus time of the first elastic member.

19A and 19B are schematic diagrams showing different three-dimensional printing apparatuses of an imaging displacement module according to any of the above embodiments of the present invention.

FIG. 19C is a schematic diagram of a three-dimensionally printed object three-dimensionally printed by the different three-dimensional printing apparatus of FIG. 19A or FIG. 19B.

The foregoing and other objects, features, and advantages of the invention will be apparent from the Detailed Description The directional terms mentioned in the following embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only directions referring to the additional schema. Therefore, the direction of use The terminology is used to illustrate, not to limit the invention. FIG. 1 is a schematic structural view of an optical device. Referring to FIG. 1 , the optical device 100 includes an illumination system 110 , a digital micromirror device 120 , a projection lens 130 , and a vibration mechanism 140 . Therein, the illumination system 110 has a light source 112 adapted to provide a light beam 114, and the digital micromirror device 120 configures a transmission path of the light beam 114. The digital micromirror device 120 is adapted to convert the light beam 114 into a plurality of sub-images 114a. In addition, the projection lens 130 is disposed on the transmission path of the sub-images 114a, and the digital micro-mirror device 120 is located between the illumination system 110 and the projection lens 130. In addition, the vibration mechanism 140 is disposed between the digital micromirror device 120 and the projection lens 130, and is located on the transmission path of the sub-images 114a.

In the optical device 100 described above, the light beam 114 provided by the light source 112 sequentially passes through a color wheel 116, a light integration rod 117, a lens group 118, and an internal total reflection 稜鏡 (TIR Prism) 119. Thereafter, the internal total reflection 稜鏡 119 reflects the beam 114 to the digital micromirror device 120. At this time, the digital micromirror device 120 converts the light beam 114 into a plurality of sub-images 114a, and the sub-images 114a sequentially pass through the internal total reflection 稜鏡119 and the vibration mechanism 140, and project the sub-images 114a via the projection lens 130. On the screen 400.

When the sub-images 114a pass through the vibrating mechanism 140, the vibrating mechanism 140 changes the transmission paths of some of the sub-images 114a. That is, the sub-images 114a passing through the vibrating mechanism 140 are projected on a first position (not shown) on the screen 400, and the sub-images 114a passing through the vibrating mechanism 140 in another portion of the time are projected on the sub-image 114a. A second position (not shown) on the screen 400, wherein the first position and the second position are different in a horizontal direction (X-axis) or a vertical direction (Z-axis) by a fixed distance. Due to vibration The moving mechanism 140 can only move the imaging position of the sub-images 114a by a fixed distance in the horizontal direction or the vertical direction, thereby improving the horizontal resolution or the vertical resolution of the image.

2 is a schematic structural view of an optical device according to an embodiment of the invention. Referring to FIG. 2 , the optical device 200 of the embodiment includes an illumination system 210 , a reflective light valve 220 , a projection lens 230 , an imaging displacement module 240 , and a screen 400 . Among other things, the illumination system 210 has a light source 212 that is adapted to provide a light beam 214, and the reflective light valve 220 configures a transmission path of the light beam 214. The reflective light valve 220 is adapted to convert the light beam 214 into a plurality of sub-images 214a. In addition, the projection lens 230 is disposed on the transmission path of the sub-images 214a, and the reflective light valve 220 is located between the illumination system 210 and the projection lens 230.

FIG. 3 is a schematic view showing the imaging of the optical device of the embodiment in the embodiment. When the sub-image 214a passes through the imaging displacement module 240, the imaging displacement module 240 changes the transmission path of some of the sub-images 214a. That is to say, the sub-images 214a passing through the imaging displacement module 240 are projected on the first position on the screen 400 (solid squares), and the other portions of the time are passed through the sub-images of the imaging displacement module 240. The image 214a is projected onto the second position (dashed square) on the screen 400, so that the horizontal resolution and the vertical resolution of the image can be simultaneously improved. The illumination system 210 described above is, for example, a telecentric illumination system or a non-telecentric illumination system. In addition, the reflective light valve 220 is, for example, a digital micromirror device or a single crystal germanium reflective liquid crystal panel. In this embodiment, a digital micromirror device is taken as an example. The light beam 214 provided by the light source 212 will sequentially pass through the color wheel 216, the light collecting column 217, the lens group 218 and the 稜鏡219, and the 稜鏡219 will Light beam 214 is reflected to reflective light valve 220. At this time, the reflective light valve 220 converts the light beam 214 into a plurality of sub-images 214a, and the sub-images 214a pass through the imaging displacement module 240, the 稜鏡219, or sequentially through the 稜鏡219, the imaging displacement module. 240, and the sub-images 214a are projected onto the screen 400 via the projection lens 230. It should be noted that if a different color LED is used as the light source 212, the color wheel 216 can be omitted. Alternatively, a light lens homogenization may be performed using a lens array instead of the light collecting column 217.

4, 5, and 6 are respectively a perspective view showing the structure of the imaging displacement module according to an embodiment of the present invention, a cross-sectional side view along the D-D dotted line direction, and a cross-sectional side view along the A-A dotted line direction. Referring to FIGS. 4 , 5 , and 6 , in the embodiment, the imaging displacement module 240 includes a carrier base 410 and a rotating base 420 . The rotating base 420 is pivotally connected to the carrying base 410, and the carrying base 410 is adapted to control the rotating base 420 to vibrate back and forth within a specific angle θ (not shown). The spin base 420 has an optical element portion 422 that is located on the transfer path of the sub-images 214a (shown in FIG. 2). Moreover, when the spin base 420 vibrates back and forth within this particular angle θ, the optical component portion 422 can move the imaging position of the sub-images 214a by a distance on an axis 430. In other words, the optical component portion 422 of the imaging displacement module 240 (as shown in FIG. 4) can move the imaging positions of the sub-images 214a simultaneously in the horizontal direction (X-axis) and in the vertical direction (Z-axis) by one distance. .

In the imaging displacement module 240 described above, the carrier base 410 includes, for example, a magnetic material holder 412, two magnetic materials 414a and 414b, and a sensing module (not shown). The rotating base 420 includes, for example, an optical element portion 422, a carrier 424, and a coil module 426. And the shaft 428. The upper and lower ends of the rotating shaft 428 are pivotally connected to the base (not shown) by the holes 432. In addition, the sensing module is disposed on the carrier base 410, and the coil module 426 is disposed on the rotating base 420, and the sensing module controls the rotating base 420 to vibrate back and forth within the specific angle θ by the coil module 426. . In more detail, the carrier base 410 has magnetic materials 414a, 414b, for example, and the sensing module generates attraction and repulsive force between the coil module 426 and the magnetic material 414 by changing the magnetic properties of the coil module 426. At least one of the two controls the rotating base 420 to vibrate back and forth within the specific angle θ to change the imaging position of the sub-images 214a.

In an embodiment of the invention, the sensing module includes, for example, a circuit board (not shown) and a sensor (not shown). The circuit board is disposed on the base, and the inductor is disposed on the carrier base. The inductor is used to sense the amplitude of the rotation of the rotating shaft 428 of the rotating base. When the rotating shaft 428 swings to a certain extent to the magnetic material 414a, the circuit board changes the magnetic properties of the coil module 426, so that the coil module 426 and the magnetic material 414a are interposed. Repulsive forces are generated (increasing the attraction between the coil module 426 and the magnetic material 414b), thereby moving the coil module 426 away from the magnetic material 414a. When the rotating shaft 428 swings to the magnetic material 414b by a certain amplitude, the circuit board changes the magnetic properties of the coil module 426, and a repulsive force is generated between the coil module 426 and the magnetic material 414b (between the coil module 426 and the magnetic material 414a). The attraction is generated), thereby moving the coil module 426 away from the magnetic material 414b. By bringing the coil module 426 closer to/away from or away from/close to the magnetic material 414a/414b, the spin base 420 can be vibrated back and forth within this particular angle θ, thereby changing the imaging position of the sub-images 214a.

In the imaging displacement module 240 described above, the coil module 426 includes, for example, a line. The ring seat 426a and the coil 426b. The coil 426b is surrounded by the coil base 426a. The circuit board changes the magnetic properties of the coil module 426, for example, by changing the direction of the current in the coil 426b. It should be noted that in the present embodiment, the rotating shaft 428 of the rotating base 420 and the optical element portion 422 can be integrally formed by the injection mold. In an embodiment, the rotating shaft 428 of the rotating base 420 and the optical element portion 422 may be separately manufactured, and the optical element portion 422 and the rotating shaft 428 may be assembled together. Further, the optical element portion 420 can be a reflective sheet or a lens.

7, 8 and 9 are respectively a perspective view showing the structure of the imaging displacement module according to another embodiment of the present invention, a cross-sectional side view along the D-D dotted line direction, and a cross-sectional side view along the A-A dotted line direction. The difference from the embodiment of FIG. 4, FIG. 5 and FIG. 6 is that the upper and lower ends of the rotating shaft 428 are respectively arranged horizontally and vertically in FIG. 4, and the upper and lower ends of the rotating shaft 428 are horizontally arranged in this embodiment. Further, this embodiment divides the coil module into two portions 427a, 427b. When the rotating shaft 428 swings to the magnetic material 414a by a certain amplitude, the circuit board changes the magnetic properties of the coil modules 427a and 427b, and generates a repulsive force between the coil module 427a and the magnetic material 414a, and simultaneously causes the coil module 427b and the magnetic material portion. An attraction occurs between the 414bs, thereby moving the coil module 427a away from the magnetic material 414a. When the rotating shaft 428 swings to the magnetic material 414b by a certain amplitude, the circuit board changes the magnetic properties of the coil modules 427a and 427b, and generates a repulsive force between the coil module 427b and the magnetic material 414b, and simultaneously causes the coil module 427a and the magnetic material. An attraction force is generated between the portions 414a, thereby moving the coil module 427b away from the magnetic material 414b. By bringing the coil modules 427a, 427b closer to/away from or away from/close to the magnetic material 414a/414b, the rotating base 420 can be vibrated back and forth within the specific angle θ, thereby changing the above-mentioned sub-functions. The imaging position of image 214a.

FIG. 10A is a perspective view showing the structure of an imaging displacement module according to another embodiment of the present invention. Figure 10B illustrates a top view of the embodiment of Figure 10A. Figure 10C is a cross-sectional side view of the embodiment of Figure 10A. Referring to FIG. 10A, FIG. 10B and FIG. 10C , in the embodiment, the imaging displacement module 1000 a includes a carrying base 1100 and a rotating base 1200 . The spin base 1200 is coupled to the carrier base 1100 via at least one elastic member 1300. The carrier base 1100 is adapted to control the biaxial rotation of the spin base 1200 with respect to the reference plane S. In the present embodiment, the two axes of the reference plane S are, for example, a first rotating shaft 1610 in the first direction X and a second rotating shaft 1620 in the second direction Y. The angle between the first rotating shaft 1610 and the second rotating shaft 1620 is 90 degrees, and the first rotating shaft 1610 and the second rotating shaft 1620 define a reference plane S. The carrier base 1100 and the spin base 1200 are symmetrical with respect to the first rotating shaft 1610. The spin base 1200 rotates relative to at least one of the first rotating shaft 1610 and the second rotating shaft 1620.

On the other hand, in the embodiment, the imaging displacement module 1000a further includes an optical element portion 1500. The optical element portion 1500 is disposed on the spin base 1200. The optical component portion includes a mirror or a lens.

In this embodiment, the at least one elastic member includes a first elastic member pair 1310 and a second elastic member pair 1320. The carrier base 1100 includes a first carrier frame 1110 and a second carrier frame 1120. The first carrier frame 1110 is disposed on the second carrier frame 1120. The second carrier frame 1120 surrounds the first carrier frame 1110. The first carrying frame 1110 is coupled to the rotating base 1200 via the first elastic member pair 1310 , and the second carrying frame 1120 is coupled to the first carrying frame 1110 via the second elastic member pair 1320 . First elastic member pair 1310 One of the rotating shafts 1620 along the two axes is disposed on opposite sides of the first carrying frame 1110, and the second elastic member pair 1320 is disposed on opposite sides of the second carrying frame 1120 along the other of the rotating shafts 1610 of the two axes.

In this embodiment, at least one elastic member 1300 is yellowed. In other embodiments, the at least one elastic member 1300 may also be other elastically deformable objects, such as sheet metal, thin metal, torsion spring or plastic, and the invention is not limited thereto.

In the embodiment, the imaging displacement module 1000a further includes a plurality of actuation components 1400. The plurality of actuation assemblies 1400 are disposed on at least one of the carrier base 1100 and the spin base 1200. The carrier base 1100 utilizes these actuation assemblies 1400 to control the biaxial rotation of the spin base 1200 relative to the reference plane S.

More specifically, in the present embodiment, the plurality of actuation assemblies 1400 include a first actuation assembly 1410 and a second actuation assembly 1420. The first actuator assembly 1410 is disposed on the carrier base 1100 and arranged along the second direction Y. The carrier base 1100 controls the rotation base 1200 to rotate relative to the first rotation shaft 1610 by using the second actuation component 1410. At this time, the rotation base 1200 rotates simultaneously with the first carrier frame 1110 with respect to the second carrier frame 1120. On the other hand, the second actuation assembly 1420 is disposed on the carrier base 1100 and arranged along the first direction X. The carrier base 1100 controls the rotation base 1200 to rotate relative to the second rotation shaft 1620 by the second actuation assembly 1410, at which time the rotation base 1200 rotates relative to the first carrier frame 1110.

In the present embodiment, the first actuation assembly 1410 includes two magnetic materials M1, M2 and a coil module C1. The magnetic material M1, M2 symmetrical first rotating shaft 1610 is disposed on the carrier base 1100. The coil module C1 is disposed on the first rotating shaft 1610 Upper, and the second magnetic member C1 is located between the magnetic materials M1, M2. The second actuation assembly 1420 includes two magnetic materials M3, M4 and two coil modules C2, C3. The two magnetic materials M3, M4 are symmetrically disposed on the second rotating shaft 1620 on the carrier base 1100. The two coil modules C2 and C3 are symmetrically disposed on the optical element portion 1500. Two coil modules C2, C3 are located between the two magnetic materials M3, M4. The magnetic materials M3, M4 and the coil modules C2, C3 are arranged along the first direction X. It is worth mentioning that the imaging displacement module 1000a of the embodiment has the smallest total length of the coil and the smallest moment of inertia.

Specifically, in the embodiment, the sensing module (not shown) controls the magnetic rotation of the coil modules C1, C2, and C3 to control the biaxial rotation of the rotating base 1200 with respect to the reference plane S. The sensing module (not shown) includes a circuit board and an inductor. The inductor is used to sense the amplitude of the swing of the first shaft 1610 and the second shaft 1620. When the first rotating shaft 1610 or the second rotating shaft 1620 swings by a certain amplitude, the circuit board changes the direction of the current on the coil modules C1, C2, and C3 to change the magnetic properties of the coil modules C1, C2, and C3. Therefore, a repulsive force or attractive force is generated between the coil modules C1, C2, and C3 and the magnetic materials M1, M2, M3, and M4, so that the coil modules C1, C2, and C3 are away from or close to the magnetic materials M1, M2, M3, and M4. In turn, the biaxial rotation of the spin base 1200 with respect to the reference plane S is controlled.

In this embodiment, the plurality of actuation components are comprised of a magnetic material and a coil. In other embodiments, the actuating components may also utilize a piezoelectric material or a stepping motor to achieve an actuation effect as in the present embodiment, and the invention is not limited thereto.

It must be noted here that the following embodiments follow the components of the foregoing embodiments. The same reference numerals are used to denote the same or similar elements, and the description of the same technical content is omitted. For the description of the omitted portions, reference may be made to the foregoing embodiments, and the following embodiments are not repeated.

FIG. 11A is a perspective view showing the structure of an imaging displacement module according to another embodiment of the present invention. 11B is a top view of the imaging displacement module of the embodiment of FIG. 11A. 11C is a cross-sectional side view of the imaging displacement module of the embodiment of FIG. 11A. Referring to FIG. 11A, FIG. 11B and FIG. 11C, the main difference between the imaging displacement module 1000b and the imaging displacement module 1000a of the present embodiment is that the coil module C4 in the second actuation component 1420 of the embodiment is set. On the spin base 1200, and the coil module C4 surrounds the optical element portion 1500 of the spin base 1200. It is worth mentioning that the number of coils used in this embodiment is small, and the process is relatively simple.

FIG. 12A is a perspective view showing the structure of an imaging displacement module according to another embodiment of the present invention. Figure 12B is a top view of the imaging displacement module of the embodiment of Figure 12A. 12C is a cross-sectional side view of the imaging displacement module of the embodiment of FIG. 12A. Referring to FIG. 12A, FIG. 12B and FIG. 12C simultaneously, the main difference between the imaging displacement module 1000c and the imaging displacement module 1000a of the present embodiment is as follows. In the present embodiment, the carrier base 1100 and the spin base 1200 are symmetrical with respect to the second rotating shaft 1620 in addition to being symmetrical with respect to the first rotating shaft 1610. In this embodiment, the first elastic member pair 1310 is disposed on opposite sides of the second bearing frame 1120 along the first rotating shaft 1610 , and the second elastic member pair 1320 is disposed on the first carrying frame 1110 along the second rotating shaft 1620 . Relative sides. Further, in the present embodiment, the first actuation assembly 1410 includes two magnetic materials M5, M6 and two coil modules C5, C6. Magnetic materials M5, M6 It is symmetrical to the first rotating shaft 1610 and is disposed on the carrier base 1100. The coil modules C5 and C6 are both symmetrical to the first rotating shaft 1610 and disposed on the optical element portion 1500. The magnetic materials M5 and M6 and the coil modules C5 and C6 are arranged along the second direction, and the coil modules C5 and C6 are located between the magnetic materials M5 and M6.

In the present embodiment, the first actuation assembly 1410 and the second actuation assembly 1420 are respectively configured symmetrically with respect to the first rotation shaft 1610 and the second rotation shaft 1620. That is to say, the first actuation component 1410 and the second actuation component 1420 of the imaging displacement module 1000c of the present embodiment have high symmetry, and the motor can set the same output, which is relatively easy to control. Moreover, the first actuation assembly 1410 and the second actuation assembly 1420 have longer force arms relative to the previously described embodiments, and thus the required force to activate the imaging displacement module 1000c is relatively small. In addition, since the distance between the four magnetic materials or the four coil modules is relatively long, it is less likely to be interfered with each other with respect to the foregoing embodiments.

FIG. 13A is a schematic diagram showing the moving direction of a sub-image according to an embodiment of the present invention. 13B and 13C are schematic diagrams showing the results of imaging displacement of the sub-image of the embodiment of FIG. 13A. Referring to FIG. 13A and FIG. 13B simultaneously, in the embodiment of the present invention, the imaging displacement module is applied to an optical device, and the imaging displacement module switches the imaging positions of the plurality of sub-images so that the sub-images 500 are in a plurality of moving directions. One moves a distance. The position of these sub-images 500 is determined according to the manner in which the spin base 1200 is rotated. Specifically, in the present embodiment, when the spin base 1200 is rotated relative to one of the first rotating shaft 1610 or the second rotating shaft 1620, the positions of the sub-images 500 are, for example, on the screen 400 of FIG. Moving direction When moving a distance, the plurality of moving directions are, for example, the first direction X or the second direction Y. In the present embodiment, this distance is about 0.7 times the pixel width. Therefore, these sub-images 500 can be swung from the original position (solid square) to four different positions (dashed squares), in other words, the image resolution can be improved to the original quadruple image resolution. In another embodiment, referring to FIG. 13C, when the spin base 1200 is rotated relative to the first rotating shaft 1610 or/and the second rotating shaft 1620, the sub-images 500 may be in a plurality of moving directions, for example, the first direction X, One of the second direction Y, the third direction XY1, and the fourth direction XY2 moves. Further, when the spin base 1200 rotates simultaneously with respect to the first rotating shaft 1610 and the second rotating shaft 1620, the sub-images 500 move by a distance, for example, in the third direction XY1 or the fourth direction XY2, wherein the third direction XY1 And the fourth direction XY2 is between the first direction X and the second direction Y.

FIG. 14A is a schematic diagram showing a moving direction and an imaging position of a sub-image according to another embodiment of the present invention. FIG. 14B is a schematic diagram showing the imaging position of the sub-image when the rotating base of the embodiment of FIG. 14A rotates in different directions in a frame time. FIG. Referring first to Figure 14A, in the present embodiment, when the spin base is rotated relative to one of the first or second reels, the sub-images 500 move in one of the directions X' or Y'. Further, when the rotating base rotates simultaneously with respect to the first rotating shaft and the second rotating shaft, the sub-images 500 move by a distance in one of the directions X'Y'1 or the direction X'Y'2, wherein the direction X 'Y'1 and direction X'Y'2 are between the direction X' and the direction Y'.

Referring again to FIG. 14A, when the rotating base rotates with respect to at least one of the first rotating shaft and the second rotating shaft, the positions of the sub-images 500 are along the direction X', Schematic representation of the displacement of Y', X'Y'1 and X'Y'2. Specifically, in the embodiment, the distances of the sub-images 500 moving in the direction X′ and in the direction Y′ are all 1 pixel width, and the sub-images 500 are in the direction X′Y′1 or the direction X′Y. The distance moved on '2 is about 1.4 pixels wide.

In more detail, in FIGS. 14A and 14B, the reference numerals 1 to 9 respectively denote that the same sub-image is located at different position marks at different times. Numeral 1 denotes a position where the sub-image 500 does not move. Numerals 3, 7 represent positions where sub-image 500 is moved to the right or left in direction X'. Numerals 5, 9 represent the position at which the sub-image 500 moves downward or upward in the direction Y'. Numerals 2 and 6 represent the position at which the sub-image 500 moves in the direction X'Y'1. The numeral 4, 8 represents the position at which the sub-image 500 moves in the direction X'Y'2.

The numeral 1 in Fig. 14B means that these sub-images 500 are at positions corresponding to the numeral 1 of Fig. 14A during this time interval. Similarly, the numerals 2 to 9 in Fig. 14B mean that the sub-images 500 are at positions corresponding to the numerical symbols 2 to 9 of Fig. 14A in respective different time intervals.

The vertical axis of Fig. 14B corresponds to the sub-image 500 being movable in different directions (direction X' or/and direction Y') in different time intervals. For example, when the numeral is 1, the vertical axis values corresponding to the direction X' and the direction Y' are all 0, which means that the sub-image 500 does not move in the direction X' or the direction Y'. When the numeral is 2, the vertical axis values corresponding to the direction X' and the direction Y' are both positive, and the sub-image 500 is moved from the position 1 to the direction between the direction X' and the direction Y' to the position 2, That is the direction X'Y'1. When the numeral is 3, its vertical axis value corresponding to the direction X' is positive. The vertical axis value corresponding to the direction Y' is 0, which means that the sub-image 500 is moved from the position 1 to the direction X' to the position 3. When the numeral is 4, the vertical axis value corresponding to the direction X' is positive, and the vertical axis value corresponding to the direction Y' is negative, which represents the sub-image 500 from the position 1 to the direction X' and the negative direction. The direction of Y' vector synthesis is actuated to position 4, which is the opposite direction of direction X'Y'. The continuation of the numerical designation and so on will not be repeated here. It should be noted that here is merely one of the sequences in which the sub-images 500 can move in the direction X', the direction Y' direction X'Y'1 or the direction X'Y'2, and the present invention does not Limited. In addition, the sub-image 500 (solid square) can be moved to different nine positions (dashed squares) in FIG. 14B, in other words, the image resolution can be improved to the original nine-fold image resolution.

FIG. 15 is a perspective view showing the structure of an imaging displacement module according to another embodiment of the present invention. Referring to FIG. 15, in the present embodiment, the main difference between the imaging displacement module 1000d and the imaging displacement module 1000b is that the first rotating shaft 1610 of the present embodiment has an angle with the second rotating shaft 1620. For example, the angle of the embodiment is 45 degrees, that is, the first rotating shaft 1610 and the second rotating shaft 1620 of the exemplary embodiment of the present invention are not limited to being perpendicular to each other.

FIG. 16A is a schematic diagram showing the moving direction of a sub-image according to another embodiment of the present invention. FIG. 16B is a schematic diagram showing the imaging position of the sub-image of the embodiment of FIG. 16A. Referring to FIG. 16A, in particular, in the embodiment, when the rotating base rotates relative to one of the first rotating shaft or the second rotating shaft, the positions of the sub-images are moved by a distance along the direction X" or the direction Y" . In the present embodiment, this distance is 1 pixel width in the direction X" and about 1.1 pixel width in the direction Y". therefore, These sub-images can be swung to four different positions (dashed squares) from the original position (solid squares), in other words, the image resolution can be improved to the original quadruple image resolution.

FIG. 17A is a perspective view showing the application of the imaging displacement module to the inside of the projection lens according to an embodiment of the invention. FIG. 17B is a perspective view showing the application of the imaging displacement module to the inside of the projection lens according to another embodiment of the present invention. Referring to FIG. 17A and FIG. 17B simultaneously, the imaging displacement module of the embodiment of the present invention can also be placed inside the projection lens or in front of the projection lens, so that the projected image resolution is improved to four times the original image resolution. .

FIG. 18A is a perspective view showing the structure of an imaging displacement module according to an embodiment of the invention. FIG. 18B is a perspective view showing the structure of the first elastic member of the imaging displacement module of the embodiment of FIG. 18A. FIG. 18C is a diagram showing the relationship between the amplitude of the first elastic member and the time of the imaging displacement module of the embodiment of FIG. 18A. Figure 18D is a diagram showing the relationship between the amplitude of the signal for driving the first elastic member and time.

The imaging displacement module of Fig. 18A can be sufficiently taught, suggested, and implemented by the description of the foregoing embodiments. Therefore, only the following paragraphs are labeled in FIG. 18A to describe the required component symbols, and the rest will not be described again. In addition, since the first elastic member pair 1310 in this embodiment is similar to the second elastic member pair 1320, the following paragraphs are exemplified by the first elastic member pair 1310, and the second elastic member pair 1320 can be operated in the same manner. .

Referring to FIG. 18A, for example, in the embodiment, the first elastic member pair 1310 includes a first elastic member 1311 and a second elastic member 1312. First elastic member The first elastic shaft 1610 is disposed along the first rotating shaft 1610 of the imaging displacement module 1000e of the present embodiment in such a manner as to be perpendicular to each other, and the first rotating shaft 1610 can pass through the axial center of the optical element portion 1500.

In general, when the amplitude of the first elastic member 1311 is switched from one direction to the other direction, the time required for the process of amplitude conversion is referred to as a transition time T. The length of the conversion time T determines the display quality of the sub-image. Since the switching time T is inversely proportional to the natural frequency of the first elastic member 1311, the natural frequency is related to the structural parameters of the first elastic member 1311. Therefore, the aforementioned factors affecting the natural frequency can be factors affecting the conversion time T.

Please refer to FIG. 18B. In view of the above, the conversion time T is related to the structural parameters of the first elastic member 1311. In the present embodiment, the structural parameter of the neck width NW of the first elastic member 1311 is, for example, 0.2 to 0.6 times the width w of the first elastic member 1311. Further, the thickness t of the first elastic member 1311 is also a cause of affecting the switching time T. In an embodiment, the first elastic member 1311 has a thickness t of at least 0.2 millimeters (mm) or more. This thickness is designed such that the natural frequency of the first elastic member 1311 is at least greater than 90 Hz. Since the natural frequency is inversely proportional to the conversion time T, this thickness design can also effectively reduce the conversion time T.

In addition to the aforementioned structural parameters of the first elastic member 1311 affecting the switching time T, the factor affecting the switching time T also includes the vibration mode of the first elastic member 1311. Referring to FIG. 18C and FIG. 18D simultaneously, in the present embodiment, the switching time T is lowered by changing the vibration mode of the first elastic member 1311. Specifically, when the amplitude of the first elastic member 1311 is changed from one direction to another direction, the driving signal thereof The waveform is as shown in Figure 18D. In addition, the driving signal waveform is not limited to the square wave form driving signal as shown in FIG. 18D, and may be a driving signal waveform in the form of a sine wave. The switching time T is less than 1 millisecond, preferably between 1 and 0.05 milliseconds, so that the optical device can provide good display quality.

In order to better understand the practical application of the imaging displacement module mentioned in the previous embodiments, the following paragraphs present a number of exemplary embodiments. 19A and 19B are respectively schematic diagrams showing different three-dimensional printing apparatuses applying the imaging displacement module according to any of the above embodiments of the present invention, and FIG. 19C is a three-dimensional column of different three-dimensional printing apparatuses of FIG. 19A or FIG. 19B. A schematic diagram of the printed 3D printed object. In this application example embodiment, the three-dimensional printing device gradually manufactures a three-dimensional object by multi-layer cross-section of a three-dimensional model constructed by computer Aided Design (CAD) or animation simulation software. Referring to FIG. 19A, the three-dimensional printing technology adopted by the three-dimensional printing apparatus 1900a in the embodiment of the present application embodiment is, for example, Stereo Lithography (SLA), and the three-dimensional printing apparatus 1900a includes molding. The slot 1910, the projection device 1920, the lifting platform 1930, and the imaging displacement module 1940 of any of the foregoing embodiments, wherein the three-dimensional printing apparatus 1900a is configured to form a three-dimensional printing object OB, wherein the three-dimensional printing of FIG. 19A The device is for example a sunken three-dimensional printing device 1900a.

The following paragraphs will describe in detail the components of the three-dimensional printing apparatus 1900a in this application example embodiment.

The molding groove 1910 is for accommodating the light sensitive material 1912, wherein the light sensitive material 1912 is photopolymerized to be cured by irradiation with a light beam having a specific wavelength. The projection device 1920 has a light-emitting element, and the light-emitting element used may be a Light Emitting Diode (LED), a laser or other suitable light-emitting element, and the light-emitting element is adapted to emit an image beam B. The image beam B can provide light (for example, ultraviolet light) capable of curing the wavelength band of the light sensitive material 1912, but the wavelength band of the image beam B is not limited thereto, as long as the light sensitive material 1912 can be cured. The lift stage 1930 has a print area 1932 and is adapted to move within the forming slot 1910. In addition, the three-dimensional printing device 1900a in the embodiment of the present application further includes a controller (not shown) and an input interface (not shown), and the controller is electrically connected to the projection device 1920, the lifting platform 1930, and the input interface. The user can input the 3D solid model of the 3D printed object OB through the input interface and through Computer Aided Design (CAD) or animation modeling software. Specifically, the input interface can be a mouse, a keyboard, a touch device, or other interface that enables the user to input a three-dimensional solid model of the three-dimensional printed object OB. The controller controls the operation of the lifting stage 1930 and the image beam B according to the three-dimensional solid model. Specifically, the controller may be a calculator, a Micro Controller Unit (MCU), a Central Processing Unit (CPU), or another programmable controller (Microprocessor). ), Digital Signal Processor (DSP), Programmable Controller, Application Specific Integrated Circuits (ASIC), Programmable Logic Device (Programmable Logic Device) Is: PLD) or other similar device. In the embodiment of the present application, the imaging displacement module 1940 is disposed outside the projection device 1920, and the imaging displacement module 1940 is disposed on the image beam B. In other embodiments, the imaging displacement module 1940 can be disposed in the projection device 1920. The imaging displacement module 1940 can be disposed on the path of the image beam B. The imaging displacement module 1940 is configured. Location is not limited to this.

Next, the three-dimensional printing process of photocuring is introduced. The process is as follows: First, a computer-aided design (Computer Aided Design, CAD for short) is used to design a three-dimensional solid model, and a three-dimensional solid model is sliced by using a discrete program. Further, a plurality of hierarchical scan paths are obtained. Next, the motion of the image beam B and the lifting stage 1930 is precisely controlled in accordance with the scanning path of each slice. It can be seen from FIG. 19A that the printing area 1932 is immersed in the light sensitive material 1912, and the image light beam B is irradiated to the partial light sensitive material 1912 according to the scanning path of the first cutting layer, and the partial light sensitive material 1912 is photopolymerized and solidified. One of the cross sections of the three-dimensionally printed object OB is formed, and the first cured layer is attached to the printing area 1932. Thereafter, the lifting stage 1930 is moved downward by a small distance, and the originally formed first solidified layer is moved downward by a small distance, and the upper surface of the originally formed first solidified layer can be used as a bearing surface to make the first solidified layer Covering another layer of light sensitive material 1912, and then precisely controlling the image beam B according to the scanning path of the second slice, so that the image beam B is irradiated to the surface of the other layer of the light sensitive material 1912 according to the scanning path of the second slice, thereby obtaining the second The solidified layer can be formed into a plurality of layers in accordance with such a pattern to form a three-dimensional printed object OB as shown in FIG. 19C. It should be noted that the shape of the three-dimensional printed object OB illustrated in FIG. 19C is merely an example, and the shape of the three-dimensional printed object OB is not limited thereto.

Referring to FIG. 19B, FIG. 19B is a schematic diagram of another three-dimensional printing device applying the imaging displacement module according to the above embodiment of the present invention. Please refer to FIG. 19B first. The three-dimensional printing apparatus 1900b shown in FIG. 19B is similar to the three-dimensional printing apparatus 1900a shown in FIG. 19A, and the main difference is that the material of the molding groove 1910 includes a transparent material or a light-transmitting material, and the lifting stage 1930 and the projection device 1920 respectively They are disposed on opposite sides of the molding groove 1910, wherein the three-dimensional printing apparatus 1900b of FIG. 19B is, for example, a pull-up three-dimensional printing apparatus 1900b. Since the material of the molding groove 1910 includes a transparent material or a light transmissive material, the image light beam B can illuminate the light sensitive material 1912 through the molding groove 1910. When three-dimensional printing is performed, the image beam B is irradiated to a portion of the photosensitive material 1912 according to the scanning path of the first slice, and the portion of the photosensitive material 1912 is photopolymerized to be solidified to form one of the sections of the three-dimensionally printed object OB. Further, the first cured layer is attached to the printing area 1932. Thereafter, the lifting stage 1930 is moved upward by a small distance, and the originally formed first solidified layer is moved upward by a small distance, and the lower surface of the originally formed first solidified layer can be used as a bearing surface to make the first solidified layer The surface is covered with another layer of light sensitive material 1912, and then the image beam B is precisely controlled according to the scanning path of the second slice, so that the image beam B is irradiated onto the surface of the other layer of the light sensitive material 1912 according to the scanning path of the second slice, thereby obtaining the second The solidified layer can be formed into a plurality of layers in accordance with such a pattern to form a three-dimensional printed object OB as shown in FIG. 19C.

Referring to FIG. 19A and FIG. 19B simultaneously, since the imaging displacement module 1940 is disposed on the path of the image beam B, after the image beam B passes through the imaging displacement module 1940, the image beam B is projected to different positions at different times. In detail, the solid line shown in FIG. 19A and FIG. 19B is the position where the image beam B is projected at a certain moment, and the dotted line shown in FIG. 19A and FIG. 19B is The position at which the image beam B is projected at another time by the image beam B. The manner of operation of the detail of the imaging displacement module 1940 can be sufficiently taught, suggested and implemented by the description of the foregoing embodiments, and details are not described herein again. Therefore, since the three-dimensional printing apparatuses 1900a and 1900b of the embodiment of the present application have the imaging displacement module 1940 mentioned in any of the foregoing embodiments, the pixels of the image beam B projected by the projection apparatus 1920 can be raised, so that The three-dimensional printing apparatus 1900a and 1900b can obtain higher resolution when curing the light-sensitive material 1912, thereby making the three-dimensional printing object OB have better surface precision.

In summary, the optical device of the present invention is configured on the transmission path of a plurality of sub-images by using the imaging displacement module, wherein the imaging displacement module utilizes a carrier base to control the rotation of the rotating base relative to a reference plane. Rotation to determine any direction of movement of the sub-images in a two-dimensional plane, the image displacement module can be used to increase the resolution of the sub-images in any direction. The optical device of the present invention can project a higher resolution image with a lower resolution reflective light valve.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.

240‧‧‧Image Displacement Module

410‧‧‧bearing base

412‧‧‧Magnetic material holder

414a, 414b‧‧‧ magnetic materials

420‧‧‧Spinning base

422‧‧‧Optical Components Division

424‧‧‧ bearing seat

426‧‧‧ coil module

426a‧‧‧ coil holder

426b‧‧‧ coil

428‧‧‧ shaft

430‧‧‧ axis

432‧‧‧ holes

D-D, A-A‧‧‧ dotted line

Claims (10)

An imaging displacement module is adapted to be used in an optical device to switch image positions of a plurality of sub-images, the imaging displacement module comprising: a carrier base; and a rotating base having an optical component portion and a rotating shaft, The rotating base is pivotally connected to the carrying base, and the carrying base is adapted to control the rotating base to vibrate back and forth at an angle, so that the sub-images are simultaneously moved by a first distance in an image forming position in a horizontal direction. And moving the imaging position in a vertical direction by a second distance, wherein one of the optical element portions is diagonally parallel to the axis of the axis of rotation. The imaging displacement module of claim 1, wherein the first or second distance is a distance of about 1/2 pixel. An imaging displacement module is adapted to be used in an optical device to switch image positions of a plurality of sub-images, the imaging displacement module comprising: a carrier base; and a rotating base coupled to the carrier via at least one elastic member a base, the carrier base is adapted to control a biaxial rotation of the rotating base relative to a reference plane to move the plurality of sub-images in a plurality of moving directions, wherein the carrier base surrounds the rotation The base, and the direction of movement of the sub-images are determined according to the manner in which the spin base is rotated. The imaging displacement module of claim 3, wherein the dual shaft comprises a first rotating shaft in a first direction and a second rotating shaft in a second direction, the rotating base is opposite to the At least one of the first rotating shaft and the second rotating shaft rotates to determine a moving direction of the sub-images, wherein the first rotating shaft and the second rotating shaft define the reference plane. The imaging displacement module of claim 4, wherein the moving direction of the sub-images includes the first direction and the second direction, and the rotating base rotates relative to the first rotating shaft or the second rotating shaft And the sub-images move the distance in the first direction or the second direction. The imaging displacement module of claim 4, wherein the moving directions include a third direction and a fourth direction, the third direction and the fourth direction being in the first direction and the second direction The rotating base rotates relative to the first rotating shaft and the second rotating shaft, and the sub-images move the distance along the third direction and the fourth direction. The imaging displacement module of claim 4, wherein the first direction and the second direction have an included angle, and the included angle is less than or equal to 90 degrees. The imaging displacement module according to any one of claims 3 to 7, wherein the imaging displacement module further comprises an optical element portion. The imaging displacement module of claim 8, wherein the optical component portion comprises a reflective sheet or a lens. The imaging displacement module according to any one of the preceding claims, wherein the carrier base has a sensing module and a magnetic material, the rotating base has a coil module, and The sensing module generates at least one of an attractive force and a repulsive force between the coil module and the magnetic material by changing the magnetic properties of the coil module to control the rotating base to travel back and forth within the angle. vibration.