CN113038099A - Near-middle-far three-distance view finding split-screen display method and device - Google Patents
Near-middle-far three-distance view finding split-screen display method and device Download PDFInfo
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- CN113038099A CN113038099A CN202110250853.0A CN202110250853A CN113038099A CN 113038099 A CN113038099 A CN 113038099A CN 202110250853 A CN202110250853 A CN 202110250853A CN 113038099 A CN113038099 A CN 113038099A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/3147—Multi-projection systems
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
Abstract
The invention relates to the technical field of view finding and shooting of equipment, in particular to a near-middle-far three-distance view finding split-screen display method and equipment thereof.
Description
Technical Field
The invention relates to the technical field of view finding and shooting of equipment, in particular to a near-middle-far three-distance view finding split-screen display method and equipment thereof.
Background
A camera is a device for recording images using optical principles. The invention of the video camera was originally used for producing movies and television programs, but it has been popularized at present. Like a camera, the early camera required a film for recording, but the current invention of the digital camera enables the image to be directly stored in the flash memory, and the newer camera directly stores the image data in the hard disk of the camera body, which can not only record the image dynamically, but also shoot the image statically, and does not need to carry the digital camera at the same time.
After some devices take photos, in order to detect the imaging quality of some cameras, the shooting level of the cameras is usually judged by shooting three images at far, middle and near positions and observing the imaging quality, and the traditional inspection measures have the defects;
personnel are inconvenient when surveing each figure and contrast the detection alone respectively, lack audio-visual observation device, and when the image was observed, can not be according to observing image imaging quality needs, the function of coincidence image when surveing behind the coincidence of a plurality of images, can't realize the purpose of observing the coincidence of individual image, exist not enoughly.
Disclosure of Invention
1. The invention solves the technical problem that when images are observed, the images are not convenient to be observed independently and the aim of observing the images in a superposition mode cannot be fulfilled, so that the observation effect is influenced.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A near-middle-far three-distance framing split-screen display method and equipment thereof comprise a base, an adjusting device, a fixing device, a turnover device, a driving device, a linkage device and a plurality of projection plates, wherein the fixing device and the adjusting device are respectively arranged at two ends of the top surface of the base, the fixing device is connected with the adjusting device through the linkage device, the driving device is arranged in the fixing device, one side of each projection plate is connected with the upper end of the turnover device, the upper end of the fixing device is fixedly connected with the upper end of the turnover device, and the lower end of the turnover device penetrates through the fixing device and is connected with the driving device;
a distribution cavity is formed in the center of the interior of the projection plate, two sides of the distribution cavity are formed by sealing a glass layer, fine sand is filled in the distribution cavity, a limiting rod is arranged on one side of the exterior of the glass layer, and the projection plate is connected with the turnover device through the limiting rod;
the overturning device comprises a clamping ring, a transmission shaft, a driven cone pulley and a driving cone pulley, a limiting groove matched with the limiting rod is formed in the clamping ring, the driven cone pulley is arranged in the limiting groove in a penetrating mode at one end of the limiting rod, the driving cone pulley is arranged at the upper end of the transmission shaft and extends into the limiting groove, the driving cone pulley and the driven cone pulley are meshed with each other, the lower end of the transmission shaft is meshed with the driving device through the driven cone pulley, and the outer portion of the clamping ring is connected with the upper end of the fixing device;
the transmission shaft is of a telescopic cylindrical structure;
the fixing device comprises a support and an electric telescopic rod, the lower end of the electric telescopic rod is fixedly connected with the support, the upper end of the electric telescopic rod is fixedly connected with the clamping ring, and the lower end of the support is connected with the linkage device;
the driving device comprises a motor and an output shaft, the output shaft penetrates through the inside of the bracket, the end part of the output shaft is connected with the output end of the motor, and a plurality of driving cone pulleys matched with the driven cone pulleys are sleeved on the surface of the output shaft;
the adjusting device comprises a projection seat, a plurality of lifting plates, a connecting rod and a first cone pulley, the lower end of the projection seat is fixedly connected with the base, a rectangular groove is formed in one side of the projection seat, the connecting rod vertically penetrates through the rectangular groove, the plurality of lifting plates are vertically distributed on one side of the projection seat, a protruding block is arranged on one side of each lifting plate, the side of each lifting plate extends into the corresponding rectangular groove, a connecting rod thread penetrates through the inside of the corresponding protruding block, the lower end of the connecting rod is provided with the first cone pulley, and the connecting rod is connected with the driving device through the first cone pulley;
the linkage device comprises a screw rod, a reciprocating block and a second bevel wheel, a sliding groove is formed in the surface of the base, the screw rod penetrates through the sliding groove, the upper end of the reciprocating block is connected with the support, the screw rod penetrates through the sliding block, the position, close to the first bevel wheel, of one end of the screw rod is provided with the second bevel wheel, and the second bevel wheel is meshed with the first bevel wheel.
Furthermore, the outer part of the connecting rod is provided with three reciprocating threads corresponding to the positions of the convex blocks respectively, and screw holes matched with the reciprocating threads are formed in the convex blocks.
Furthermore, the telescopic structure of the transmission shaft specifically comprises that the transmission shaft comprises a loop bar, an insert bar and a convex bar, a blind hole is arranged at the lower end inside the loop bar, the upper end of the insert bar is inserted into the blind hole, a connecting groove is formed in the surface of the loop bar on one side of the blind hole, the convex bar is fixedly connected to the surface of the insert bar), the convex bar is accommodated inside the connecting groove, and the height of the convex bar is larger than the thickness of the connecting groove.
Furthermore, the inside of cassette is equipped with the shooting instrument, the inside of lifter plate is equipped with the projecting apparatus.
Further, the upper end of the distribution cavity is provided with a concentration cavity, the concentration cavity is in a step structure, and the volume of the step structure is larger than that of the distribution cavity.
Furthermore, a plurality of partition plates are vertically distributed in the distribution cavity, and the fine sand is contained in a space formed by the two partition plates.
Furthermore, the lower extreme of projection seat is located the surface of base has seted up the linkage groove, first cone pulley and second cone pulley all set up in the inside of linkage groove.
A near-middle-far three-distance framing display method is used for framing the same object in different shooting distance states and generating different data images;
receiving data images and generating a plurality of projections according to different data images;
and respectively projecting the plurality of projections to different mapping panels to generate different mapping images, and superposing the different mapping images to generate superposed projections.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) this scheme is through projecting a plurality of projecting the image respectively on the projection board of difference through the projecting apparatus on the lifter plate, personnel can pass through electric telescopic handle effect during the projection, thereby make the vertical expansion of a plurality of projection boards, meanwhile, rotate through the lead screw, can drive the first cone pulley of second cone pulley meshing and rotate, when second cone pulley rotates, then can drive the connecting rod and rotate in the inside of projection seat, thereby make the projecting apparatus on a plurality of lifters expand on the vertical direction, realize the high alignment of a plurality of projecting apparatuses and a plurality of projection boards, then project the image on the projection board, make things convenient for personnel to carry out the contrast observation to the figure.
(2) When the quality of the superposed images of a plurality of images needs to be observed, a motor is utilized to rotate, an output shaft is driven to rotate, a driving gear is meshed with a driven gear to rotate, a transmission shaft is driven to rotate, a limiting rod is driven to rotate in the clamping ring when the transmission shaft rotates, a projection plate connected with the transmission shaft rotates around the transmission shaft, the projection plate is turned over, when the projection plate rotates, fine sand uniformly distributed in a distribution cavity is accumulated at the bottom of the distribution cavity, so that the distribution cavity without being shielded by the fine sand becomes transparent, the plurality of projection plates are positioned on the same plane, when the images projected by projectors on the plurality of lifting plates pass through a glass layer, a transparent image is formed, then the superposed images are finally formed on one projection plate far away from the lifting plates, and the image imaging quality of the superposed images can be directly observed, is beneficial to the superposition image.
(3) In order to realize under the rotation of same output shaft, mutual independence between a plurality of transmission shafts, can utilize the flexible function of transmission shaft, thereby make the driven gear of transmission shaft lower extreme and the outside driving gear separation of output shaft, realize when needs are to single or a plurality of throwing the board upset, can accomplish corresponding throwing the board and can not take place rotatoryly because of the output shaft rotates, the fine sand in the throwing board of keeping away from the lifter plate that this just makes distributes all the time in distributing the chamber, and can not overturn because of throwing the board, and make the well fine sand in the chamber that distributes concentrate and fall into in concentrating the chamber.
(4) The end part of the screw rod is in linkage with the first cone pulley through the second cone pulley, and the connecting rod can be driven to rotate when the screw rod rotates, so that the plurality of lifting plates are driven to sequentially expand in the vertical direction through a plurality of reciprocating threads outside the connecting rod.
Drawings
FIG. 1 is a perspective view of the structure of the present invention;
FIG. 2 is a cross-sectional view of the projection plate of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of the structure of FIG. 1 at A in accordance with the present invention;
FIG. 4 is an enlarged view of the structure of FIG. 1 at B according to the present invention;
FIG. 5 is a disassembled view of the projection seat and the connecting rod structure of the present invention.
The reference numbers in the figures illustrate:
1. a base; 2. a card holder; 3. a projection seat; 31. a lifting plate; 32. a first cone pulley; 33. a connecting rod; 331. reciprocating screw threads; 4. a support; 42. a collar; 400. an electric telescopic rod; 5. a projection plate; 51. a glass layer; 500. a distribution chamber; 501. a concentration chamber; 502. a limiting rod; 503. a drive shaft; 5031. connecting grooves; 5032. a nose bar; 5033. a loop bar; 5034. inserting a rod; 7. a motor; 71. an output shaft; 8. a screw rod; 81. a reciprocating block; 82. adjusting a knob; 9. a linkage groove; 91. a second cone; 100. a driven cone pulley.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
Referring to fig. 1-5, in an embodiment of the present invention, a near-to-middle-far three-distance framing split-screen apparatus includes a base 1, an adjusting device, a fixing device, a turning device, a driving device, a linkage device and a plurality of projection plates 5, wherein the fixing device and the adjusting device are respectively disposed at two ends of a top surface of the base 1, the fixing device and the adjusting device are connected through the linkage device, the driving device is disposed inside the fixing device, one side of the projection plates 5 is connected with an upper end of the turning device, an upper end of the fixing device is fixedly connected with an upper end of the turning device, and a lower end of the turning device penetrates through the fixing device and is connected with the;
a distribution cavity 500 is formed in the center of the inner part of the projection plate 5, two sides of the distribution cavity 500 are formed by sealing a glass layer 51, fine sand is filled in the distribution cavity 500, a limiting rod 502 is arranged on one side of the outer part of the glass layer 51, and the projection plate 5 is connected with a turnover device through the limiting rod 502;
the turning device comprises a clamping ring 42, a transmission shaft 503, a driven cone pulley 100 and a driving cone pulley, a limiting groove matched with the limiting rod 502 is formed in the clamping ring 42, the driven cone pulley 100 is arranged in the limiting groove, one end of the limiting rod 502 penetrates through the limiting groove, the driving cone pulley is arranged in the limiting groove, the upper end of the transmission shaft 503 extends to the upper end of the limiting groove, the driving cone pulley and the driven cone pulley 100 are meshed with each other, the lower end of the transmission shaft 503 is meshed with a driving device through the driven cone pulley 100, and the outer portion of the clamping ring 42 is connected with the upper end of the fixing device;
the transmission shaft 503 is a telescopic cylindrical structure;
the fixing device comprises a bracket 4 and an electric telescopic rod 400, the lower end of the electric telescopic rod 400 is fixedly connected with the bracket 4, the upper end of the electric telescopic rod 400 is fixedly connected with a clamping ring 42, and the lower end of the bracket 4 is connected with the linkage device;
the driving device comprises a motor 7 and an output shaft 71, the output shaft 71 penetrates through the inside of the bracket 4, the output end of the motor 7 at the end part of the output shaft 71 is connected, and a plurality of driving cone pulleys matched with the driven cone pulleys 100 are sleeved on the surface of the output shaft 71;
the adjusting device comprises a projection base 3, a plurality of lifting plates 31, a connecting rod 33 and a first cone pulley 32, the lower end of the projection base 3 is fixedly connected with the base 1, a rectangular groove is formed in one side of the projection base 3, the connecting rod 33 vertically penetrates through the rectangular groove, the plurality of lifting plates 31 are distributed on one side of the projection base 3 in the vertical direction, a protruding block is arranged on one side of each lifting plate 31 extending into the rectangular groove, a connecting rod 33 is arranged in the protruding block in a threaded penetrating mode, the first cone pulley 32 is arranged at the lower end of the connecting rod 33, and the connecting rod 33 is connected with the driving device through the first cone pulley 32;
the linkage device comprises a screw rod 8, a reciprocating block 81 and a second bevel wheel 91, a sliding groove is formed in the surface of the base 1, the screw rod 8 penetrates through the sliding groove, the upper end of the reciprocating block 81 is connected with the connecting support 4, the screw rod 8 penetrates through the sliding block, the position, close to the first bevel wheel 32, of one end of the screw rod 8 is provided with the second bevel wheel 91, and the second bevel wheel 91 is meshed with the first bevel wheel 32.
Referring to fig. 1, three reciprocating threads 331 are respectively disposed at positions corresponding to the protrusions at the outer portion of the connecting rod 33, screw holes matched with the reciprocating threads 331 are formed in the protrusions, and a certain distance can be maintained between the plurality of lifting plates 31 by the arrangement of the three reciprocating threads 331.
Referring to fig. 3, the telescopic structure of the transmission shaft 503 is specifically that the transmission shaft 503 includes a loop bar 5033, an insertion bar 5034 and a convex bar 5032, a blind hole is formed at the lower end of the interior of the loop bar 5033, the upper end of the insertion bar 5034 is inserted into the blind hole, a connection groove 5031 is formed on the surface of the loop bar 5033 on one side of the blind hole, a convex bar 5032 is fixedly connected to the surface of the insertion bar 5034, the convex bar 5032 is accommodated in the connection groove 5031, the height of the convex bar 5032 is greater than the thickness of the connection groove 5031, a camera is arranged in the interior of the card holder 2, and a projector is arranged in.
Referring to fig. 2, the upper end of the distribution chamber 500 is provided with a concentration chamber 501, the concentration chamber 501 is in a step structure, and the volume of the step structure is larger than that of the distribution chamber 500, when the concentration chamber 501 is at the lower end of the projection plate 5, the fine sand in the distribution chamber 500 enters the concentration chamber 501, so that the distribution chamber 500 is transparent, and the image is projected into the head glass layer 51 and forms a projection on the glass.
Referring to fig. 1, a plurality of partition plates are vertically distributed in the distribution chamber 500, the fine sand is accommodated in a space formed by the two partition plates, and the arrangement of the plurality of partition plates prevents the fine sand from being accumulated in the distribution chamber 500, so that the fine sand is distributed more uniformly.
Referring to fig. 1, a linkage groove 9 is formed in the surface, located on the base 1, of the lower end of the projection seat 3, the first cone pulley 32 and the second cone pulley 91 are both arranged inside the linkage groove 9, and due to the arrangement of the linkage groove 9, the first cone pulley 32 and the second cone pulley 91 are conveniently overhauled and maintained.
Further, a clamping seat 2 is arranged at one end of the upper end of the base 1, which is far away from the projection plate 5, the clamping seat 2 is used for fixing the position of the camera, and then the camera takes pictures and projects the pictures through a projector on the lifting frame 31.
A near-middle-far three-distance framing display method is used for framing the same object in different shooting distance states and generating different data images;
receiving data images and generating a plurality of projections according to different data images;
and respectively projecting the plurality of projections to different mapping panels to generate different mapping images, and superposing the different mapping images to generate superposed projections.
The working principle of the invention is as follows: when a plurality of image projections need to be superposed in one plane for observation, a plurality of projection plates 5 close to the lifting plate 31 can be adjusted into a transparent device, so that a single projection plate 5 far away from the lifting plate 31 is set to be in a non-transparent state, when the non-transparent state is adopted, the distribution cavity 500 is filled with fine sand, the superposition effect of a plurality of images is directly observed, the superposition forming images of images with different intervals are favorably observed, the framing imaging effect of the shooting equipment on different distances can be intuitively known, a plurality of shooting images are respectively projected onto different projection plates 5 through projectors on the lifting plate 31, a person can act through the electric telescopic rod 400 during projection, so that the plurality of projection plates 5 are vertically expanded, meanwhile, the rotation of the lead screw 8 is adopted, the second cone pulley 91 can be driven to be meshed with the first cone pulley 32 to rotate, when the second cone pulley 32 rotates, the connecting rod 33 is driven to rotate in the projection base 3, so that the projectors on the lifting plates 31 are unfolded in the vertical direction, the height alignment of the projectors and the projection plates 5 is realized, then the images are projected on the projection plates 5, and the comparison and observation of the images are facilitated for personnel, when the quality of the images after the superposition of the images needs to be observed, the output shaft 71 is driven to rotate by utilizing the rotation of the motor 7, the driven gear 100 is meshed through the driving gear to rotate, the transmission shaft 503 is driven to rotate, the limiting rod 502 is driven to rotate in the inner part of the clamping ring 42 when the transmission shaft 503 rotates, the projection plate 5 connected with the transmission shaft 503 rotates around the transmission shaft 503, the overturning of the projection plate 5 is realized, when the projection plate 5 rotates, the fine sand uniformly distributed in the distribution cavity 500 is accumulated in the concentration cavity 501 at the bottom of the distribution cavity 500, and the distribution cavity 500 without the shielding of the fine sand becomes transparent, at the moment, the plurality of projection plates 5 are positioned on the same plane, when the images projected by the projectors on the plurality of lifting plates 31 pass through one glass layer 51, a transparent image is formed, then a superposed image is finally formed on one projection plate 5 far away from the lifting plates 31, the image quality of the superposed image can be visually observed, in order to realize that the plurality of transmission shafts 503 are independent from each other under the rotation of the same output shaft 71, the telescopic function of the transmission shafts 503 can be utilized, so that the driven gear at the lower end of the transmission shaft 503 is separated from the driving gear outside the output shaft 71, when the single or a plurality of projection plates 5 need to be overturned, the corresponding projection plate 5 can not rotate due to the rotation of the output shaft 71, and therefore, fine sand in the projection plate 5 far away from the lifting plates 31 is always distributed in the distribution cavity 500 without overturning due to the projection plate 5, the fine sand in the distribution cavity 500 falls into the concentration cavity 501 in a concentrated manner, the end portion of the screw rod 8 is linked with the first cone pulley 32 through the second cone pulley 91, the connecting rod 33 is driven to rotate when the screw rod 8 rotates, the plurality of lifting plates 331 are driven to sequentially expand in the vertical direction through the plurality of reciprocating threads 331 outside the connecting rod 33, and the adjusting knob 82 is arranged on one side, located on the base 1, of the end portion of the screw rod 8 in order to adjust and rotate the screw rod 8.
The foregoing is only a preferred embodiment of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (8)
1. The utility model provides a nearly well distant three range framing split screen equipment which characterized in that: the device comprises a base (1), an adjusting device, a fixing device, a turnover device, a driving device, a linkage device and a plurality of projection plates (5), wherein the fixing device and the adjusting device are respectively arranged at two ends of the top surface of the base (1), the fixing device is connected with the adjusting device through the linkage device, the driving device is arranged in the fixing device, one side of each projection plate (5) is connected with the upper end of the turnover device, the upper end of the fixing device is fixedly connected with the upper end of the turnover device, and the lower end of the turnover device penetrates through the fixing device and is connected with the driving device;
a distribution cavity (500) is formed in the center of the inner part of the projection plate (5), two sides of the distribution cavity (500) are formed by sealing a glass layer (51), fine sand is filled in the distribution cavity (500), a limiting rod (502) is arranged on one side of the outer part of the glass layer (51), and the projection plate (5) is connected with the turnover device through the limiting rod (502);
the turnover device comprises a clamping ring (42), a transmission shaft (503), a driven cone pulley (100) and a driving cone pulley, a limiting groove matched with the limiting rod (502) is formed in the clamping ring (42), the driven cone pulley (100) is arranged in the limiting groove in a penetrating mode at one end of the limiting rod (502), the driving cone pulley is arranged in the limiting groove at the upper end of the transmission shaft (503) in an extending mode, the driving cone pulley is meshed with the driven cone pulley (100), the lower end of the transmission shaft (503) is meshed with the driving device through the driven cone pulley (100), and the outer portion of the clamping ring (42) is connected with the upper end of the fixing device;
the transmission shaft (503) is of a telescopic cylindrical structure;
the fixing device comprises a support (4) and an electric telescopic rod (400), the lower end of the electric telescopic rod (400) is fixedly connected with the support (4), the upper end of the electric telescopic rod (400) is fixedly connected with the clamping ring (42), and the lower end of the support (4) is connected with the linkage device;
the driving device comprises a motor (7) and an output shaft (71), the output shaft (71) penetrates through the support (4), the end part of the output shaft (71) is connected with the output end of the motor (7), and a plurality of driving cone pulleys matched with the driven cone pulleys (100) are sleeved on the surface of the output shaft (71);
the adjusting device comprises a projection seat (3), a plurality of lifting plates (31), a connecting rod (33) and a first cone pulley (32), the lower end of the projection seat (3) is fixedly connected with the base (1), a rectangular groove is formed in one side of the projection seat (3), the connecting rod (33) vertically penetrates through the rectangular groove, the plurality of lifting plates (31) are distributed on one side of the projection seat (3) in the vertical direction, a protruding block is arranged on one side of the lifting plates (31) extending into the rectangular groove, the connecting rod (33) is threaded through the protruding block, the first cone pulley (32) is arranged at the lower end of the connecting rod (33), and the connecting rod (33) is connected with a driving device through the first cone pulley (32);
the linkage device comprises a screw rod (8), a reciprocating block (81) and a second cone pulley (91), a sliding groove is formed in the surface of the base (1), the screw rod (8) penetrates through the inner part of the sliding groove, the upper end of the reciprocating block (81) is connected with the support (4), the screw rod (8) penetrates through the sliding block, one end of the screw rod (8) is close to the position of the first cone pulley (32) to form the second cone pulley (91), and the second cone pulley (91) is meshed with the first cone pulley (32).
2. The near, middle and far triple-view split-screen display device according to claim 1, wherein: the outer portion of the connecting rod (33) is provided with three reciprocating threads (331) at positions corresponding to the convex blocks respectively, and screw holes matched with the reciprocating threads (331) are formed in the convex blocks.
3. The near, middle and far three-distance framing split-screen display device according to claim 2, wherein: the telescopic structure of the transmission shaft (503) is specifically that the transmission shaft (503) comprises a loop bar (5033), an insert bar (5034) and a convex bar (5032), a blind hole is formed in the lower end of the interior of the loop bar (5033), the upper end of the insert bar (5034) is inserted into the blind hole, a connecting groove (5031) is formed in the surface of the loop bar (5033) on one side of the blind hole, the convex bar (5032) is fixedly connected to the surface of the insert bar (5034)), the convex bar (5032) is accommodated in the connecting groove (5031), and the height of the convex bar (5032) is greater than the thickness of the connecting groove (5031).
4. The near, middle and far triple-view split-screen display device according to any one of claims 1 to 3, characterized in that: the inside of cassette (2) is equipped with the shooting instrument, the inside of lifter plate (31) is equipped with the projecting apparatus.
5. The near, middle and far three-distance framing split-screen display device according to claim 4, wherein: the upper end of distributing chamber (500) is equipped with concentrated chamber (501), concentrated chamber (501) shape is the halfpace structure, just the volume of halfpace structure is greater than the volume of distributing chamber (500).
6. The near, middle and far triple-view split-screen display device according to claim 1, wherein: a plurality of partition plates are vertically distributed in the distribution cavity (500), and the fine sand is contained in a space formed by the two partition plates.
7. The near, middle and far triple-view split-screen display device according to claim 1, wherein: the lower end of the projection seat (3) is located on the surface of the base (1) and provided with a linkage groove (9), and the first cone pulley (32) and the second cone pulley (91) are arranged inside the linkage groove (9).
8. The near, intermediate and far three-distance viewfinder display method according to any of claims 1, 2, 3, 5, 6 and 7, characterized by comprising the steps of;
framing the same object in different shooting interval states, and generating different data images;
receiving data images and generating a plurality of projections according to different data images;
and respectively projecting the plurality of projections to different mapping panels to generate different mapping images, and superposing the different mapping images to generate superposed projections.
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