Projection device

Abstract

The utility model discloses a kind of projection device, projection device includes: support;Light source, light source is fixed on support, light source is used to emit light beam;Optical filter, optical filter is set on the light path of light source;First turntable, a plurality of picture cards are set on first turntable, picture card is used to emit light beam from optical filter, forms test pattern and emits, the pattern on multiple picture cards is different, rotate first turntable, multiple picture cards rotate with first turntable;Picture card positioning assembly, picture card positioning assembly is fixed on support, picture card positioning assembly is used to when picture card rotates to with optical filter corresponding, fixed picture card;Lens, the light beam of picture card emission is emitted after lens. According to the projection device of the utility model, detection efficiency can be improved, detection cost and the complexity of detection system are reduced.

Description

Technical Field

[0001] This utility model relates to the field of projection technology, and in particular to a projection device. Background Technology

[0002] Existing projection devices are widely used in industries, education, entertainment and other fields, mainly to project images or text onto targets. However, traditional projection technology can usually only project a single pattern and cannot transmit multiple patterns, which leads to obvious limitations of projection devices in certain application scenarios.

[0003] For example, in industrial inspection, it may be necessary to test multiple indicators of the object to be tested. Therefore, a projection device is needed that can project multiple different patterns to meet various testing needs. However, existing testing equipment requires multiple projection devices, which increases the testing cost and the complexity of the testing system, resulting in low testing efficiency. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention provides a projection device capable of projecting various patterns, thereby improving detection efficiency, reducing detection costs, and decreasing the complexity of the detection system.

[0005] According to the projection device of this utility model, the projection device includes:

[0006] support;

[0007] A light source, fixed on the bracket, is used to emit a light beam;

[0008] A filter, wherein the filter is disposed on the light emission path of the light source;

[0009] A first turntable is provided with multiple pattern cards. The pattern cards are used to form a test pattern from the light beam emitted from the filter before it is emitted. The patterns on the multiple pattern cards are different. When the first turntable is rotated, the multiple pattern cards rotate with the first turntable.

[0010] The image card positioning component is fixed on the bracket and is used to fix the image card when the image card is rotated to correspond with the filter.

[0011] The light beam emitted from the card is emitted through the lens.

[0012] In some embodiments, the system further includes a plurality of floating image cards, the first turntable having a plurality of through holes, the plurality of through holes corresponding one-to-one with the plurality of floating image cards, the plurality of image cards corresponding one-to-one with the plurality of floating image cards, the image cards being detachably mounted on the floating image cards, and the floating image cards being detachably mounted on the first turntable.

[0013] In some optional embodiments, the image positioning component includes an image motor and a sliding block. One end of the sliding block is connected to the image motor, and the other end of the sliding block is positioned in conjunction with the image floating block. The image motor can drive the sliding block to move towards the side closer to the lens, so that the sliding block is fixed to the image floating block.

[0014] In some optional embodiments, the sliding block is provided with a protrusion, and the floating block of the graphic card is provided with a groove, the protrusion cooperating with the groove to fix the floating block of the graphic card.

[0015] In some alternative embodiments, a connector is also included, which is disposed on the bracket and is used to connect to the lens.

[0016] In some optional embodiments, the floating block of the image card is provided with a positioning pin, the positioning pin is provided with a guide structure, and the connector is provided with a positioning hole. When the image card motor drives the sliding block to move towards the side closer to the lens, the positioning pin enters the positioning hole through the guide structure to position the floating block of the image card.

[0017] In some alternative embodiments, a telescopic element is also included, through which the connector is connected to the sliding block.

[0018] In some embodiments, a second turntable is also included, and a plurality of filters are disposed on the second turntable.

[0019] In some optional embodiments, a first motor and a second motor are also included, which are mounted on the bracket. The first motor is used to drive the first turntable to rotate, and the second motor is used to drive the second turntable to rotate.

[0020] In some embodiments, a housing is also included, which is disposed on the support.

[0021] According to the projection device of this utility model, by setting multiple pattern cards with different patterns on each pattern card, and setting the multiple pattern cards on a first turntable, rotating the first turntable can make the filter correspond to the different pattern cards, thus meeting the requirements of the same type of detection, reducing the detection cost and the complexity of the detection system. Furthermore, by using a pattern card fixing component to fix the pattern cards, the stability of the projection device is improved.

[0022] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a projection device according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of a projection device according to another embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of a second turntable according to an embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of a first turntable according to an embodiment of the present utility model;

[0027] Figure 5 This is a schematic diagram of a projection device according to yet another embodiment of the present invention;

[0028] Figure 6 yes Figure 5 An enlarged schematic diagram of part A in the middle.

[0029] Figure label:

[0030] 1000: Projection device; 100: Support; 200: Light source; 300: Second turntable; 310: Filter; 400: First turntable; 410: Floating block of the card; 411: Groove; 412: Positioning pin; 4121: Guide structure; 420: Card; 430: Through hole; 500: Card positioning component; 510: Card motor; 520: Sliding block; 521: Protrusion; 600: Lens; 700: Connector; 710: Positioning hole; 800: Telescopic component; 900: Housing. Detailed Implementation

[0031] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0032] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0033] The following is for reference. Figures 1-6 The projection device 1000 according to an embodiment of the present utility model includes a support 100, a light source 200, a filter 310, a first turntable 400, and a map positioning assembly 500, wherein the support 100 is used to support the entire projection device 1000.

[0034] Furthermore, the light source 200 is fixed on the bracket 100, and the light source 200 is used to emit a light beam. It should be noted that the light source 200 may include a light-emitting element and a light-diffusing element. The light beam emitted by the light-emitting element illuminates the light-diffusing element, and the light-diffusing element receives the light beam and forms it into a uniform surface light before emitting it. Multiple light-emitting elements may be provided, or the light-diffusing element may not be provided. This embodiment of the present invention does not limit this.

[0035] Furthermore, the filter 310 is disposed on the light output path of the light source 200 to filter the light beam emitted by the light source 200.

[0036] Furthermore, the first turntable 400 is provided with multiple pattern cards 420. The pattern cards 420 are used to form a test pattern from the light beam emitted from the filter 310 before it is emitted. The patterns on the multiple pattern cards 420 are different. When the first turntable 400 is rotated, the multiple pattern cards 420 rotate with the first turntable 400. It should be noted that the patterns on the multiple pattern cards 420 are different. Therefore, the test patterns formed by the light beam after passing through the pattern cards 420 are different, which can meet the needs of various tests. Moreover, rotating the first turntable 400 can align one of the pattern cards 420 with the filter 310 and the lens 600 to form a test pattern. After completing the test of the corresponding index, the first turntable 400 is rotated again to align another pattern card 420 with the filter 310 and the lens 600 to perform another index test.

[0037] Furthermore, the pattern card positioning component 500 is fixed on the bracket 100. The pattern card positioning component 500 is used to fix the pattern card 420 when it is rotated to correspond with the filter 310 and the lens 600. Understandably, the pattern card positioning component 500 can fix the pattern card 420 by means of snapping or the like, so that when the pattern card 420 is set to correspond with the filter 310 and the lens 600, the position of the pattern card 420 is fixed, so that the light beam emitted from the filter 310 is directed to the pattern card 420 and forms a test pattern before being emitted to the lens 600.

[0038] Furthermore, the light beam emitted from the pattern card 420 passes through the lens 600 and is then emitted to form a clear projected image. Specifically, after determining the index to be detected, the first turntable 400 is rotated so that the pattern card 420 with the corresponding pattern is rotated to correspond with the filter 310, and the pattern card 420 is fixed using the pattern card 420 fixing device. The light source 200 emits a light beam, which passes through the filter 310 and is emitted towards the pattern card 420. The pattern card 420 forms a specific pattern with the light beam and then emits it towards the lens 600. The lens 600 receives the light beam and transmits it to form a projected image, which is then projected onto the object to be tested for detection.

[0039] The inventors discovered in their actual research that in industrial inspection, it may be necessary to test multiple indicators of the object to be tested. Therefore, a projection device is needed that can project multiple different patterns to meet the needs of various tests. However, existing testing equipment requires multiple projection devices, which increases the testing cost and the complexity of the testing system, and results in low testing efficiency.

[0040] In view of this, the projection device 1000 according to the present utility model embodiment sets up multiple pattern cards 420, each with a different pattern, and sets the multiple pattern cards 420 on a first turntable 400. Rotating the first turntable 400 allows the filter 310 and lens 600 to correspond to different pattern cards 420, meeting the requirements of the same type of detection, reducing detection costs and the complexity of the detection system. Furthermore, the pattern card 420 is fixed by a pattern card fixing component, improving the stability of the projection device 1000.

[0041] Understandably, the first turntable 400 can be disc-shaped, and multiple pattern cards 420 can be evenly distributed on the first turntable 400. The number of pattern cards 420 can be two, three, four, five, etc. Of course, this embodiment of the invention does not limit the number and position of the pattern cards 420. Preferably, this embodiment of the invention includes eight pattern cards 420, which are evenly arranged on the first turntable 400. That is, one pattern card 420 is arranged at every 45° interval on the first turntable 400, so that the eight pattern cards 420 are evenly arranged on the first turntable 400.

[0042] It should be noted that the projection device 1000 may also include a detection element, which is used to detect whether the map card 420 has been rotated into position. When the map card 420 has been rotated into position, the map card 420 fixing device positions the map card floating block 410.

[0043] Please continue to refer to Figures 1 to 6 In some embodiments, the system also includes multiple floating blocks 410 for drawing cards, multiple through holes 430 on the first turntable 400, and multiple floating blocks 410 for drawing cards corresponding to each other. Multiple drawing cards 420 are also provided in correspondence with the multiple floating blocks 410 for drawing cards. The drawing cards 420 are detachably mounted on the floating blocks 410, and the floating blocks 410 are detachably mounted on the first turntable 400. Understandably, the Tuka floating block 410 is disposed on the first turntable 400 and can float up and down in the through hole 430 of the first turntable 400. Specifically, the Tuka floating block 410 can be detachably connected to the first turntable 400 by a spring screw. The spring screw includes a head and a screw rod. The part of the screw rod away from the head is provided with threads, and the part of the screw rod near the head is provided with a spring. The screw rod of the spring screw passes through the Tuka floating block 410, so that the screw rod of the spring screw is detachably connected to the first turntable 400 by threads. The Tuka floating block 410 floats up and down by the elastic force of the spring.

[0044] It should be noted that when the first turntable 400 rotates, the floating block 410 of the target image card is in a floating state. That is, the image card positioning component 500 will not position the floating block 410 at this time. The image card 420 can rotate synchronously with the first turntable 400. After the target image card 420 is aligned with the filter 310 and the lens 600, the image card positioning component 500 positions and fixes the floating block 410, so that the floating block 410 further compresses the spring and is in a sinking state to fix the image card 420.

[0045] In some other embodiments, the drawing card 420 can be detachably connected to the drawing card floating block 410 by means of snap-fit ​​connection or threaded connection, so that the drawing card 420 is fixed in the drawing card floating block 410.

[0046] Therefore, the diagram 420 is detachably connected to the diagram floating block 410, and the diagram floating block 410 is detachably connected to the first turntable 400, which facilitates the replacement of the diagram 420, thereby meeting more testing needs and further reducing the testing cost and the complexity of the testing system.

[0047] In some optional embodiments, the image positioning assembly 500 includes an image motor 510 and a sliding block 520. One end of the sliding block 520 is connected to the image motor 510, and the other end of the sliding block 520 is positioned in conjunction with the image floating block 410. The image motor 510 can drive the sliding block 520 to move towards the side closer to the lens 600, thereby fixing the sliding block 520 and the image floating block 410. Understandably, activating the image motor 510 can drive the sliding block 520 to move towards the side closer to the lens 600, thereby causing the sliding block 520 to move towards the side closer to the lens 600, so that the image floating block 410 is in a lowered state, thus fixing the image floating block 410 in place. Specifically, the image motor 510 can be a servo electric cylinder, and multiple servo electric cylinders are provided, with multiple servo electric cylinders jointly controlling the movement of the sliding block 520.

[0048] Therefore, by using the PTZ motor 510 to drive the sliding block 520 to fix the PTZ floating block 410, the problem of inaccurate image caused by uneven force on the turntable of the PTZ 420 can be eliminated, thereby making the alignment between the PTZ 420, the filter 310 and the lens 600 more precise, and further improving the accuracy and efficiency of the detection.

[0049] In some optional embodiments, the sliding block 520 is provided with a protrusion 521, and the floating block 410 is provided with a groove 411. The protrusion 521 and the groove 411 cooperate to fix the floating block 410. Specifically, when the floating block 410 is in the floating state, the protrusion 521 on the sliding block 520 does not restrict the floating block 410, and the floating block 410 can rotate with the rotation of the first turntable 400. When the target pattern 420 rotates to be aligned with the filter 310, the pattern motor 510 is started. The pattern motor 510 drives the sliding block 520 to move towards the side closer to the lens 600. At this time, the protrusion 521 on the sliding block 520 cooperates with the groove 411 on the floating block 410, so that the sliding block 520 drives the floating block 410 to move towards the side closer to the lens 600, so that the floating block 410 is in the sinking state, thereby completing the fixation of the floating block 410.

[0050] Therefore, the cooperation between the protrusion 521 and the groove 411 can firmly fix the floating block 410 of the image card, preventing the image card 420 from shaking or shifting during the projection process, thereby further improving the accuracy and efficiency of the detection.

[0051] In some optional embodiments, a connector 700 is also included, which is disposed on the bracket 100 and is used to connect to the lens 600. This allows the lens 600 to be stably mounted on the projection device 1000, improving the stability of the projection effect of the projection device 1000 and further enhancing the detection accuracy.

[0052] In some optional embodiments, the floating block 410 is provided with a positioning pin 412, the positioning pin 412 is provided with a guide structure 4121, and the connector 700 is provided with a positioning hole. When the sliding block 520 is driven by the graph motor 510 to move towards the side closer to the lens 600, the positioning pin 412 enters the positioning hole through the guide structure 4121 to position the floating block 410. It should be noted that after the target pattern card 420 rotates to align with the filter 310, the pattern card motor 510 is activated. The pattern card motor 510 drives the sliding block 520 to move towards the side closer to the lens 600. At this time, the protrusion 521 on the sliding block 520 engages with the groove 411 on the floating block 410, so that the sliding block 520 drives the floating block 410 to move towards the side closer to the lens 600, so that the floating block 410 is in a sunken state, thereby fixing the floating block 410. It is understandable that when the first turntable 400 rotates, uneven force on the turntable may cause the pattern card 420 to... If the lens 600 is misaligned, a positioning pin 412 is provided on the floating block 410, a positioning hole is provided on the connecting block, and a guide structure 4121 is provided on the positioning pin 412. When the floating block 410 and the lens 600 are misaligned, as the sliding block 520 moves the floating block 410 closer to the lens 600, the guide structure 4121 can guide the positioning pin 412 into the positioning hole, thereby fixing the relative position of the floating block 410 and the lens 600, improving the stability of the projection effect of the projection device 1000, and further improving the detection accuracy.

[0053] Specifically, in this embodiment, the end of the positioning pin 412 away from the floating block 410 is set in the shape of a frustum, and the frustum-shaped structure forms a guide structure 4121 so that the positioning pin 412 can cooperate with the positioning hole, thereby positioning the floating block 410 and the lens 600 relative to each other.

[0054] In some optional embodiments, a telescopic member 800 is also included, through which the connector 700 and the sliding block 520 are connected. Thus, by providing the telescopic member 800 between the connector 700 and the sliding block 520, when the projector motor 510 drives the sliding block 520 to move closer to the lens 600, the telescopic member 800 can extend and retract, thus not affecting the movement of the sliding block. Furthermore, the telescopic member 800 can also provide support for the sliding block 520, thereby further improving the stability of the projection device 1000.

[0055] Understandably, there may be one, two, three, four, etc. of the retractable component 800. This embodiment of the present invention does not limit this. Preferably, in this embodiment, there are three retractable components 800, which are evenly distributed on the sliding block 520, thereby further improving the stability of the projection device 1000.

[0056] In some embodiments, a second turntable 300 is also included, and multiple filters 310 are disposed on the second turntable 300. Specifically, the filters 310 may include red filters 310, blue filters 310, green filters 310, and transparent filters 310, etc. By rotating the second turntable 300, different filters 310 can be aligned with the light source 200, thereby meeting the needs of various tests and reducing the detection cost and complexity of the detection system.

[0057] In some optional embodiments, a first motor and a second motor are also included, both mounted on the bracket 100. The first motor drives the first turntable 400 to rotate, and the second motor drives the second turntable 300 to rotate. Understandably, the first motor can drive the first turntable 400 to rotate, thereby allowing selection of the pattern card 420, and the second motor can drive the second turntable 300 to rotate, thereby allowing selection of the filter 310. By combining different pattern cards 420 and filters 310, various projection effects can be achieved, meeting diverse testing needs and reducing testing costs and the complexity of the testing system.

[0058] In some embodiments, the device further includes a housing 900, which covers the support 100. Thus, the housing 900 can protect the internal components of the projection device 1000 from dust and external environmental interference, further improving the stability of the projection device 1000, as well as enhancing its aesthetics and safety.

[0059] Specifically, when using the projection device 1000, the indicators to be tested must first be determined. Then, the second motor is started to drive the second turntable 300 to align the target filter 310 with the light source 200. The first motor is started to drive the first turntable 400 to align the target pattern card 420 with the filter 310. The pattern card motor 510 is started so that the sliding block 520 moves the floating part of the pattern card 420 closer to the lens 600. The positioning pin 412 on the floating part of the pattern card 420 is positioned with the positioning hole on the connector 700. The floating part of the pattern card 420 is fixed in a sunken state. The light beam emitted by the light source 200 can pass through the filter 310 and the pattern card 420 in sequence and then be projected onto the object to be tested through the lens 600.

[0060] The projection device 1000 according to the embodiments of the present invention is known to those skilled in the art and will not be described in detail here.

[0061] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0064] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0065] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0066] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A projection device, characterized in that, The projection device includes: support; A light source, fixed on the bracket, is used to emit a light beam; A filter, wherein the filter is disposed on the light emission path of the light source; A first turntable is provided with multiple pattern cards. The pattern cards are used to form a test pattern from the light beam emitted from the filter before it is emitted. The patterns on the multiple pattern cards are different. When the first turntable is rotated, the multiple pattern cards rotate with the first turntable. The image card positioning component is fixed on the bracket and is used to fix the image card when the image card is rotated to correspond with the filter. The light beam emitted from the card is emitted through the lens.

2. The projection device according to claim 1, characterized in that, It also includes multiple floating blocks for drawing cards. The first turntable is provided with multiple through holes, and the multiple through holes are provided one-to-one with the multiple floating blocks for drawing cards. The multiple drawing cards are provided one-to-one with the multiple floating blocks for drawing cards. The drawing cards are detachably mounted on the floating blocks for drawing cards, and the floating blocks for drawing cards are detachably mounted on the first turntable.

3. The projection device according to claim 2, characterized in that, The image positioning component includes an image motor and a sliding block. One end of the sliding block is connected to the image motor, and the other end of the sliding block is positioned in conjunction with the image floating block. The image motor can drive the sliding block to move towards the side closer to the lens, so that the sliding block is fixed with the image floating block.

4. The projection device according to claim 3, characterized in that, The sliding block has a protrusion, and the floating block of the drawing card has a groove. The protrusion and the groove cooperate to fix the floating block of the drawing card.

5. The projection device according to claim 4, characterized in that, It also includes a connector disposed on the bracket and used to connect to the lens.

6. The projection device according to claim 5, characterized in that, The floating block of the image card is provided with a positioning pin, the positioning pin is provided with a guide structure, and the connector is provided with a positioning hole. When the image card motor drives the sliding block to move towards the side closer to the lens, the positioning pin enters the positioning hole through the guide structure to position the floating block of the image card.

7. The projection device according to claim 6, characterized in that, It also includes a telescopic component, through which the connector and the sliding block are connected.

8. The projection device according to any one of claims 1-7, characterized in that, It also includes a second turntable, and multiple filters are provided, with the multiple filters being disposed on the second turntable.

9. The projection device according to claim 8, characterized in that, It also includes a first motor and a second motor, which are mounted on the bracket. The first motor is used to drive the first turntable to rotate, and the second motor is used to drive the second turntable to rotate.

10. The projection device according to claim 1, characterized in that, It also includes a housing that covers the support.

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