CN110401790B - Aperture assembly, camera and electronic equipment - Google Patents
Aperture assembly, camera and electronic equipment Download PDFInfo
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- CN110401790B CN110401790B CN201910735851.3A CN201910735851A CN110401790B CN 110401790 B CN110401790 B CN 110401790B CN 201910735851 A CN201910735851 A CN 201910735851A CN 110401790 B CN110401790 B CN 110401790B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The application discloses light ring subassembly, camera and electronic equipment, wherein the light ring subassembly includes: the base is provided with an accommodating cavity, and the bottom wall of the accommodating cavity is provided with a light through hole; the light shielding sheets are arranged in the accommodating cavity, the number of the light shielding sheets is multiple, and the light shielding sheets are uniformly distributed along the circumferential direction of the light through hole; piezoelectric motor, piezoelectric motor establish and hold the intracavity, and piezoelectric motor drive anti-dazzling screen moves in order to change the light area that advances of logical unthreaded hole along the radial direction of logical unthreaded hole. According to the diaphragm assembly, the piezoelectric motor is arranged, stepless change of the moving distance of the piezoelectric motor can be achieved by changing the number of driving pulses of the piezoelectric motor, and meanwhile the piezoelectric motor can drive the light shielding sheet to move, so that stepless change of the moving position of the light shielding sheet can be achieved, and stepless change of the light inlet area of the light through hole can be achieved.
Description
Technical Field
The application relates to the technical field of cameras, in particular to an aperture assembly, a camera and electronic equipment.
Background
In the related art, when the aperture assembly adjusts the light entrance area, only two-stage or three-stage change can be realized, but stepless change of the light entrance area cannot be realized.
Disclosure of Invention
The application provides a diaphragm assembly, diaphragm assembly can realize into the electrodeless change of light area.
The application also provides a camera, the camera includes above-mentioned light ring subassembly.
The application further provides an electronic device, and the electronic device comprises the camera.
An aperture assembly according to an embodiment of the present application includes: the base is provided with an accommodating cavity, and the bottom wall of the accommodating cavity is provided with a light through hole; the light shielding sheets are arranged in the accommodating cavity, the number of the light shielding sheets is multiple, and the light shielding sheets are uniformly distributed along the circumferential direction of the light through hole; the piezoelectric motor is arranged in the accommodating cavity and drives the shading sheet to move along the radial direction of the light through hole so as to change the light inlet area of the light through hole.
According to the diaphragm assembly provided by the embodiment of the application, the piezoelectric motor is arranged, stepless change of the moving distance of the piezoelectric motor can be realized by changing the number of driving pulses of the piezoelectric motor, and meanwhile, the piezoelectric motor can drive the light shielding sheet to move, so that stepless change of the moving position of the light shielding sheet can be realized, and stepless change of the light inlet area of the light through hole can be realized. In addition, piezoelectric motor can drive the anti-dazzling screen and move along the radial direction of logical unthreaded hole, can realize the linear motion of anti-dazzling screen from this to can simplify the complexity of anti-dazzling screen motion track, be favorable to promoting the reliability of anti-dazzling screen motion.
According to this application embodiment's camera, include: a lens barrel; and the diaphragm assembly is arranged in the lens barrel.
According to the camera provided by the embodiment of the application, the piezoelectric motor is arranged, the stepless change of the moving distance of the piezoelectric motor can be realized by changing the number of the driving pulses of the piezoelectric motor, and meanwhile, the piezoelectric motor can drive the light shielding sheet to move, so that the stepless change of the moving position of the light shielding sheet can be realized, and the stepless change of the light inlet area of the light through hole can be realized. In addition, piezoelectric motor can drive the anti-dazzling screen and move along the radial direction of logical unthreaded hole, can realize the linear motion of anti-dazzling screen from this to can simplify the complexity of anti-dazzling screen motion track, be favorable to promoting the reliability of anti-dazzling screen motion.
The electronic equipment comprises the camera.
According to the electronic equipment provided by the embodiment of the application, the piezoelectric motor is arranged, the stepless change of the moving distance of the piezoelectric motor can be realized by changing the number of the driving pulses of the piezoelectric motor, and meanwhile, the piezoelectric motor can drive the light shielding sheet to move, so that the stepless change of the moving position of the light shielding sheet can be realized, and the stepless change of the light inlet area of the light through hole can be realized. In addition, piezoelectric motor can drive the anti-dazzling screen and move along the radial direction of logical unthreaded hole, can realize the linear motion of anti-dazzling screen from this to can simplify the complexity of anti-dazzling screen motion track, be favorable to promoting the reliability of anti-dazzling screen motion.
Additional aspects and advantages of the present application 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 present application.
Drawings
The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an aperture assembly according to an embodiment of the present application;
FIG. 2 is a schematic diagram of a base of an aperture assembly according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of an aperture assembly in addition to a base, according to an embodiment of the present application;
FIG. 4 is a schematic view of another orientation of the structure of an aperture assembly other than the base, according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a third light-shielding sheet and a fourth light-shielding sheet of an aperture assembly according to an embodiment of the present application.
Reference numerals:
the aperture assembly 100 is provided with a diaphragm assembly,
a base 1, an accommodating cavity 11, a light through hole 12,
a first slide groove 131, a second slide groove 132, a third slide groove 133, a fourth slide groove 134,
a ninth chute 135, a tenth chute 136, an eleventh chute 137, a twelfth chute 138,
the light-shielding sheet 2 is provided with a light-shielding sheet,
a first light shielding sheet 21, a first slider 211, a fifth sliding groove 212,
a sixth runner 213, a ninth slider 214, a tenth slider 215,
the second shade 22, the second slider 221, the seventh sliding slot 222,
an eighth runner 223, an eleventh slider 224, a twelfth slider 225,
a third light-shielding sheet 23, a third slider 231, a fourth slider 232, a fifth slider 233,
a fourth light-shielding sheet 24, a sixth slider 241, a seventh slider 242, an eighth slider 243,
a piezoelectric motor 3.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
An aperture assembly 100 according to an embodiment of the present application is described below with reference to the drawings.
As shown in fig. 1, an aperture assembly 100 according to an embodiment of the present application includes: base 1, anti-dazzling screen 2 and piezoelectric motor 3.
As shown in fig. 1 and 2, the base 1 has a holding cavity 11, a light through hole 12 is formed in the bottom wall of the holding cavity 11, the light shielding sheets 2 are arranged in the holding cavity 11, the light shielding sheets 2 are multiple, the light shielding sheets 2 are uniformly distributed along the circumferential direction of the light through hole 12, the piezoelectric motor 3 is arranged in the holding cavity 11, and the piezoelectric motor 3 drives the light shielding sheets 2 to move along the radial direction of the light through hole 12 so as to change the light feeding area of the light through hole 12.
The piezoelectric motor 3 generates a controllable periodic vibration by a piezoelectric reverse effect after being energized, thereby driving the light shielding sheet 2 to move.
It can be understood that when the piezoelectric motor 3 is energized, the stepless change of the moving distance of the piezoelectric motor 3 can be realized by changing the number of the driving pulses of the piezoelectric motor 3. Meanwhile, the piezoelectric motor 3 can drive the light shielding sheet 2 to move, so that the stepless change of the moving position of the light shielding sheet 2 can be realized, and the stepless change of the light inlet area of the light through hole 12 can be further realized.
In the related art, the shading sheet is driven by electromagnetism, and the coil can generate magnetic force after being electrified so as to drive the shading sheet to rotate. The electromagnetic drive can only realize the rotation of the light shielding sheet between a plurality of positions, but cannot control the rotation of the light shielding sheet to the positions other than the plurality of positions, in other words, the electromagnetic drive can only realize the multi-stage (for example, two-stage) change of the light shielding sheet, and the light inlet area of the corresponding light through hole only has a plurality of values.
In the application, by arranging the piezoelectric motor 3, the piezoelectric motor 3 can drive the light shielding sheet 2 to move to any position in an effective stroke, so that the light entering area of the light through hole 12 is steplessly changed, in other words, the light entering area of the light through hole 12 is an arbitrary value in a range, and is not only a few values. Therefore, the shooting effect of the camera can be improved.
According to the diaphragm assembly 100 of the embodiment of the application, the piezoelectric motor 3 is arranged, stepless change of the moving distance of the piezoelectric motor 3 can be realized by changing the number of driving pulses of the piezoelectric motor 3, and meanwhile, the piezoelectric motor 3 can drive the light shielding sheet 2 to move, so that stepless change of the moving position of the light shielding sheet 2 can be realized, and further stepless change of the light entering area of the light through hole 12 can be realized. In addition, the piezoelectric motor 3 can drive the light shielding sheet 2 to move along the radial direction of the light through hole 12, so that the linear motion of the light shielding sheet 2 can be realized, the complexity of the motion track of the light shielding sheet 2 can be simplified, and the motion reliability of the light shielding sheet 2 can be improved.
As shown in fig. 2, the base 1 has a first sliding groove 131, a second sliding groove 132, a third sliding groove 133 and a fourth sliding groove 134, the first sliding groove 131 and the second sliding groove 132 are located at two opposite sides of the light passing hole 12, the extending directions of the first sliding groove 131 and the second sliding groove 132 are the same, the third sliding groove 133 and the fourth sliding groove 134 are located at two opposite sides of the light passing hole 12, the extending directions of the third sliding groove 133 and the fourth sliding groove 134 are the same, and the extending directions of the third sliding groove 133 and the first sliding groove 131 are perpendicular.
As shown in fig. 2 and 3, the number of the light-shielding sheets 2 is four, and the four light-shielding sheets 2 include: the first light-shielding sheet 21 is provided with a first sliding block 211 (refer to fig. 4), the first sliding block 211 is arranged in the first sliding groove 131, the first light-shielding sheet 21 is provided with a fifth sliding groove 212 and a sixth sliding groove 213 which are spaced apart, the extending direction of the fifth sliding groove 212 is perpendicular to the extending direction of the sixth sliding groove 213, and the included angle between the extending direction of the fifth sliding groove 212 and the extending direction of the sixth sliding groove 213 and the extending direction of the first sliding groove 131 is 45 °.
It can be understood that the first slider 211 of the first light shielding sheet 21 is disposed in the first sliding slot 131, and the first slider 211 is matched with the first sliding slot 131 to limit the moving track of the first light shielding sheet 21, so that the first light shielding sheet 21 moves along the extending direction of the first sliding slot 131, and the control of the moving track of the first light shielding sheet 21 can be realized.
As shown in fig. 2 and 3, the second light shielding plate 22 is provided with a second sliding block 221 (see fig. 4), the second sliding block 221 is disposed in the second sliding groove 132, the second light shielding plate 22 is provided with a seventh sliding groove 222 and an eighth sliding groove 223 which are spaced apart from each other, the extending direction of the seventh sliding groove 222 is perpendicular to the extending direction of the eighth sliding groove 223, and an included angle between the extending direction of the seventh sliding groove 222 and the extending direction of the eighth sliding groove 223 and the extending direction of the second sliding groove 132 is 45 °.
It can be understood that the second slider 221 of the second shade 22 is disposed in the second sliding slot 132, and the second slider 221 cooperates with the second sliding slot 132 to limit the moving track of the second shade 22, so that the second shade 22 moves along the extending direction of the second sliding slot 132, and the moving track of the second shade 22 can be controlled.
As shown in fig. 2 and 3, the third light-shielding sheet 23 is provided with a third slider 231, a fourth slider 232, and a fifth slider 233 (see fig. 4 and 5), the third slider 231 is disposed in the third sliding groove 133, the fourth slider 232 is disposed in the fifth sliding groove 212, the fifth slider 233 is disposed in the seventh sliding groove 222, the fourth light-shielding sheet 24 is provided with a sixth slider 241, a seventh slider 242, and an eighth slider 243, the sixth slider 241 is disposed in the fourth sliding groove 134, the seventh slider 242 is disposed in the eighth sliding groove 223, the eighth slider 243 is disposed in the sixth sliding groove 213, and the piezoelectric motor 3 is connected to one of the first light-shielding sheet 21, the second light-shielding sheet 22, the third light-shielding sheet 23, and the fourth light-shielding sheet 24 and is located on a side of the corresponding light-shielding sheet 2 away from the base 1.
It can be understood that the third slider 231 is disposed in the third sliding slot 133, and the third slider 231 and the third sliding slot 133 cooperate to control the moving track of the third light-shielding sheet 23, and the sixth slider 241 is disposed in the fourth sliding slot 134, and the sixth slider 241 and the fourth sliding slot 134 cooperate to control the moving track of the fourth light-shielding sheet 24.
In addition, the third light-shielding sheet 23 is also slidably connected to the first light-shielding sheet 21 and the second light-shielding sheet 22, the fourth slider 232 of the third light-shielding sheet 23 is disposed in the fifth sliding slot 212 of the first light-shielding sheet 21, the fifth slider 233 of the third light-shielding sheet 23 is disposed in the seventh sliding slot 222 of the second light-shielding sheet 22, the fourth light-shielding sheet 24 is also slidably connected to the first light-shielding sheet 21 and the second light-shielding sheet 22, the eighth slider 243 of the fourth light-shielding sheet 24 is disposed in the sixth sliding slot 213 of the first light-shielding sheet 21, and the seventh slider 242 of the fourth light-shielding sheet 24 is disposed in the eighth sliding slot 223 of the second light-shielding sheet 22.
Therefore, the first light-shielding sheet 21, the second light-shielding sheet 22, the third light-shielding sheet 23 and the fourth light-shielding sheet 24 are connected into a ring, when one light-shielding sheet 2 moves along the radial direction of the light-passing hole 12, the other three light-shielding sheets 2 also move synchronously along the radial direction of the light-passing hole 12, and the change of the light feeding area of the light-passing hole 12 is realized by utilizing the change of the space surrounded by the first light-shielding sheet 21, the second light-shielding sheet 22, the third light-shielding sheet 23 and the fourth light-shielding sheet 24.
For example, in one example of the present application, the piezoelectric motor 3 is connected to the third light-shielding sheet 23 and is located on a side of the third light-shielding sheet 23 away from the base 1. The piezoelectric motor 3 can drive the third light shielding sheet 23 to move along the radial direction of the light through hole 12, and since the fourth slider 232 on the third light shielding sheet 23 is in a matching relationship with the fifth sliding slot 212 of the first light shielding sheet 21 and the fifth slider 233 on the third light shielding sheet 23 is also in a matching relationship with the seventh sliding slot 222 on the second light shielding sheet 22, the first light shielding sheet 21 and the second light shielding sheet 22 can synchronously move along the radial direction of the light through hole 12 under the driving of the fourth slider 232 and the fifth slider 233 on the third light shielding sheet 23. In addition, the sixth sliding slot 213 of the first light-shielding plate 21 and the eighth sliding block 243 of the fourth light-shielding plate 24 are in a matching relationship, the eighth sliding slot 223 of the second light-shielding plate 22 and the seventh sliding block 242 of the fourth light-shielding plate 24 are also in a matching relationship, and the fourth light-shielding plate 24 can also move synchronously along the radial direction of the light-passing hole 12 under the driving of the sixth sliding slot 213 and the eighth sliding slot 223. Thus, the first light-shielding sheet 21, the second light-shielding sheet 22, the third light-shielding sheet 23, and the fourth light-shielding sheet 24 can be moved in synchronization by one piezoelectric motor 3.
For example, in another example of the present application, the piezoelectric motor 3 is connected to the fourth light-shielding sheet 24 and is located on a side of the fourth light-shielding sheet 24 away from the base 1. The piezoelectric motor 3 can drive the fourth light shielding sheet 24 to move along the radial direction of the light through hole 12, and since the seventh slider 242 on the fourth light shielding sheet 24 is in a matching relationship with the eighth sliding slot 223 of the second light shielding sheet 22, and the eighth slider 243 on the fourth light shielding sheet 24 is also in a matching relationship with the sixth sliding slot 213 on the first light shielding sheet 21, the first light shielding sheet 21 and the second light shielding sheet 22 can synchronously move along the radial direction of the light through hole 12 under the driving of the seventh slider 242 and the eighth slider 243 on the fourth light shielding sheet 24. In addition, the fifth sliding slot 212 on the first light shielding plate 21 and the fourth sliding block 232 on the third light shielding plate 23 have a matching relationship, the seventh sliding slot 222 on the second light shielding plate 22 and the fourth sliding block 232 on the third light shielding plate 23 also have a matching relationship, and the third light shielding plate 23 can also synchronously move along the radial direction of the light through hole 12 under the driving of the fifth sliding slot 212 and the seventh sliding slot 222. Thus, the first light-shielding sheet 21, the second light-shielding sheet 22, the third light-shielding sheet 23, and the fourth light-shielding sheet 24 can be moved in synchronization by one piezoelectric motor 3.
As shown in fig. 2 and 3, the base 1 further includes a ninth sliding slot 135 and a tenth sliding slot 136, both the extending direction of the ninth sliding slot 135 and the extending direction of the tenth sliding slot 136 are parallel to the extending direction of the first sliding slot 131, the ninth sliding slot 135 and the tenth sliding slot 136 are respectively located on both sides of the first sliding slot 131, the first light shielding sheet 21 further includes a ninth slider 214 and a tenth slider 215 (see fig. 4 and 5), the ninth slider 214 is disposed in the ninth sliding slot 135, and the tenth slider 215 is disposed in the tenth sliding slot 136. It can be understood that the control of the moving track of the first light shielding sheet 21 can be realized through the cooperation of the ninth slider 214 and the ninth sliding slot 135, and the control of the moving track of the first light shielding sheet 21 can also be realized through the cooperation of the tenth slider 215 and the tenth sliding slot 136, so that the smoothness of the sliding of the first light shielding sheet 21 and the accuracy of the sliding direction can be further improved through increasing the cooperation of the ninth slider 214 and the ninth sliding slot 135 and the cooperation of the tenth slider 215 and the tenth sliding slot 136, and the reliability of the operation of the first light shielding sheet 21 can be improved.
As shown in fig. 2 and 3, the base 1 further includes an eleventh sliding slot 137 and a twelfth sliding slot 138, an extending direction of the eleventh sliding slot 137 and an extending direction of the twelfth sliding slot 138 are both parallel to an extending direction of the second sliding slot 132, the eleventh sliding slot 137 and the twelfth sliding slot 138 are respectively located on two sides of the second sliding slot 132, the second light shielding sheet 22 further includes an eleventh sliding block 224 and a twelfth sliding block 225 (see fig. 4 and 5), the eleventh sliding block 224 is disposed in the eleventh sliding slot 137, and the twelfth sliding block 225 is disposed in the twelfth sliding slot 138.
It can be understood that the control of the moving track of the second light shielding sheet 22 can be realized through the cooperation of the eleventh slider 224 and the eleventh sliding slot 137, and the control of the moving track of the first light shielding sheet 21 can also be realized through the cooperation of the twelfth slider 225 and the twelfth sliding slot 138, so that the smoothness of the sliding of the second light shielding sheet 22 and the accuracy of the sliding direction can be further improved through increasing the cooperation of the eleventh slider 224 and the eleventh sliding slot 137 and the cooperation of the twelfth slider 225 and the twelfth sliding slot 138, and the reliability of the operation of the second light shielding sheet 22 can be improved.
Specifically, the fifth and sixth sliding grooves 212 and 213 are provided on the surface of the first light-shielding sheet 21 facing the bottom wall of the accommodating chamber 11, the seventh and eighth sliding grooves 222 and 223 are provided on the surface of the second light-shielding sheet 22 facing the bottom wall of the accommodating chamber 11, and the piezoelectric motor 3 is provided on the first light-shielding sheet 21 or the second light-shielding sheet 22.
In other words, when the fifth and sixth sliding grooves 212 and 213 are provided on the surface of the first light-shielding sheet 21 facing the bottom wall of the accommodating chamber 11 and the seventh and eighth sliding grooves 222 and 223 are provided on the surface of the second light-shielding sheet 22 facing the bottom wall of the accommodating chamber 11, the piezoelectric motor 3 is provided on the side of the first light-shielding sheet 21 or the second light-shielding sheet 22 away from the base 1.
It can be understood that the fifth sliding chute 212 and the sixth sliding chute 213 are located on the surface of the first light-shielding sheet 21 facing the bottom wall of the accommodating cavity 11, the fifth sliding chute 212 and the sixth sliding chute 213 are respectively in a matching relationship with the fourth slider 232 on the third light-shielding sheet 23 and the eighth slider 243 on the fourth light-shielding sheet 24, the fourth slider 232 on the third light-shielding sheet 23 and the eighth slider 243 on the fourth light-shielding sheet 24 are also located on the surface of the first light-shielding sheet 21 facing the bottom wall of the accommodating cavity 11, and by disposing the piezoelectric motor 3 on the side of the first light-shielding sheet 21 or the second light-shielding sheet 22 away from the base 1, the piezoelectric motor 3 can be prevented from interfering with the third light-shielding sheet 23 or the fourth light-shielding sheet 24, so as to improve the reliability of the operation of the piezoelectric motor 3.
Of course, the present application is not limited thereto, and as shown in fig. 3 and 4, the fifth and sixth sliding grooves 212 and 213 may also be provided on a surface of the first light-shielding sheet 21 away from the bottom wall of the accommodating chamber 11, the seventh and eighth sliding grooves 222 and 223 may also be provided on a surface of the second light-shielding sheet 22 away from the bottom wall of the accommodating chamber 11 (refer to fig. 2), and the piezoelectric motor 3 is provided on one of the third and fourth light-shielding sheets 23 and 24.
In other words, when the fifth and sixth sliding grooves 212 and 213 are provided on the surface of the first light-shielding sheet 21 away from the bottom wall of the accommodating chamber 11 and the seventh and eighth sliding grooves 222 and 223 are provided on the surface of the second light-shielding sheet 22 away from the bottom wall of the accommodating chamber 11, the piezoelectric motor 3 is provided on the side of the third light-shielding sheet 23 or the fourth light-shielding sheet 24 away from the base 1. Therefore, the interference between the piezoelectric motor 3 and the first light-shielding sheet 21 or the second light-shielding sheet 22 can be avoided, and the reliability of the operation of the piezoelectric motor 3 can be improved.
As shown in fig. 3 and 4, the surface of the piezoelectric motor 3 facing the corresponding light-shielding sheet 2 abuts against the surface of the corresponding light-shielding sheet 2 facing the piezoelectric motor 3, so that the piezoelectric motor 3 and the corresponding light-shielding sheet 2 move in synchronization. It can be understood that the surface of the piezoelectric motor 3 facing the corresponding light shielding sheet 2 and the surface of the corresponding light shielding sheet 2 facing the piezoelectric motor 3 are pressed against each other, and the piezoelectric motor 3 and the corresponding light shielding sheet 2 can move synchronously by using the friction force between the piezoelectric motor 3 and the surface of the corresponding light shielding sheet 2 facing the piezoelectric motor 3. Therefore, redundant connecting pieces and connecting processes can be omitted, and the piezoelectric motor 3 and the corresponding shading sheet 2 can move synchronously.
Specifically, a layer of wear-resistant material is attached to at least one of a surface of the piezoelectric motor 3 facing the corresponding light-shielding sheet 2 and a surface of the corresponding light-shielding sheet 2 facing the piezoelectric motor 3.
In other embodiments of the present application, there are a plurality of piezoelectric motors 3, and the plurality of piezoelectric motors 3 correspond to the plurality of light-shielding sheets 2 one to one. It will be appreciated that each piezoelectric motor 3 can independently control the movement of one shutter 2. Thereby, the speed of response of the individual gobos 2, and the reliability of movement can be improved.
Specifically, be equipped with the slide rail on the base 1, the slide rail is a plurality of, and a plurality of slide rails set up along the circumference direction interval that leads to unthreaded hole 12, all are equipped with a slider on every anti-dazzling screen 2, a plurality of sliders and a plurality of slide rail one-to-one cooperation. It can be understood that each piezoelectric motor 3 can drive one light shielding sheet 2 to move along the extending direction of the slide rail, and through the cooperation of the slide rail and the slide block, the smoothness and reliability of the movement of the light shielding sheet 2 can be further improved.
As shown in fig. 3 and 4, the projections of the inner peripheral wall of each light shielding sheet 2 on the cross section perpendicular to the central axis of the light passing hole 12 include two straight line segments forming an included angle with each other (see fig. 5), and the size of the included angle between two straight line segments on the same light shielding sheet 2 is equal to the size of the included angle between two adjacent straight line segments on two adjacent light shielding sheets 2.
It can be understood that each light shielding sheet 2 moves along a straight line, and since each light shielding sheet 2 includes two straight line segments on the projection of the cross section perpendicular to the central axis of the light through hole 12, since the included angle between two adjacent straight line segments on two adjacent light shielding sheets 2 is invariable all the time in the process of moving along with the light shielding sheets 2, the shape of the central through hole formed by the plurality of light shielding sheets 2 is also invariable, thereby being beneficial to realizing the control of the light entering area. In addition, the size of the included angle between two straightways on the same light-shielding sheet 2 is equal to the size of the included angle between two adjacent straightways on two adjacent light-shielding sheets 2, so that the shape of a central through hole formed by a plurality of light-shielding sheets 2 can be ensured to be regular, and the control difficulty of the light-feeding area can be further reduced.
A camera according to an embodiment of the present application is described below with reference to the drawings.
According to this application embodiment's camera, include: lens barrel and the diaphragm assembly 100, the diaphragm assembly 100 is provided in the lens barrel.
According to the camera provided by the embodiment of the application, the piezoelectric motor 3 is arranged, the stepless change of the moving distance of the piezoelectric motor 3 can be realized by changing the number of the driving pulses of the piezoelectric motor 3, and meanwhile, the piezoelectric motor 3 can drive the light shielding sheet 2 to move, so that the stepless change of the moving position of the light shielding sheet 2 can be realized, and further the stepless change of the light inlet area of the light through hole 12 can be realized. In addition, the piezoelectric motor 3 can drive the light shielding sheet 2 to move along the radial direction of the light through hole 12, so that the linear motion of the light shielding sheet 2 can be realized, the complexity of the motion track of the light shielding sheet 2 can be simplified, and the motion reliability of the light shielding sheet 2 can be improved.
Specifically, the camera further includes a power supply circuit, and the piezoelectric motor 3 is electrically connected to the power supply circuit. Piezoelectric motor 3 can be directly connected with the control circuit of camera to can shorten the length of piezoelectric motor 3's connecting wire, and then reduce the degree of difficulty that piezoelectric motor 3 electricity is connected, be favorable to promoting piezoelectric motor 3's assembly efficiency.
The power supply circuit can apply forward voltage to the piezoelectric motor 3 to drive the corresponding shading sheet 2 to move, when the piezoelectric motor 3 moves to a preset position, reverse voltage can be applied to the piezoelectric motor 3, so that the piezoelectric motor 3 drives the corresponding shading sheet 2 to retract to an initial position, a cycle is formed, and the time of the cycle process is short. The continuous periodic cycle is performed continuously, and macroscopically, the continuous direct motion is shown. Specifically, the piezoelectric motor 3 may be a piezoelectric ceramic.
An electronic apparatus according to an embodiment of the present application is described below with reference to the drawings. The electronic device may be a game device, a music playing device, a storage device, an AR (Augmented Reality) device, or a device applied to an automobile. Further, "electronic equipment" as used herein includes, but is not limited to, devices that are configured to receive/transmit communication signals via a wireline connection, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a digital cable, a direct cable connection, and/or another data connection/network, and/or via a wireless interface (e.g., for a cellular network, a Wireless Local Area Network (WLAN), a digital television network such as a DVB-H network, a satellite network, an AM-FM broadcast transmitter, and/or another communications electronic equipment).
The electronic equipment comprises the camera.
According to the electronic equipment provided with the piezoelectric motor 3, the stepless change of the moving distance of the piezoelectric motor 3 can be realized by changing the number of the driving pulses of the piezoelectric motor 3, and meanwhile, the piezoelectric motor 3 can drive the light shielding sheet 2 to move, so that the stepless change of the moving position of the light shielding sheet 2 can be realized, and further the stepless change of the light inlet area of the light through hole 12 can be realized. In addition, the piezoelectric motor 3 can drive the light shielding sheet 2 to move along the radial direction of the light through hole 12, so that the linear motion of the light shielding sheet 2 can be realized, the complexity of the motion track of the light shielding sheet 2 can be simplified, and the motion reliability of the light shielding sheet 2 can be improved.
In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.
Claims (12)
1. An aperture assembly, comprising:
the base is provided with an accommodating cavity, and the bottom wall of the accommodating cavity is provided with a light through hole;
the light shielding sheets are arranged in the accommodating cavity, the number of the light shielding sheets is multiple, and the light shielding sheets are uniformly distributed along the circumferential direction of the light through hole;
the piezoelectric motor is arranged in the accommodating cavity and drives the shading sheet to move along the radial direction of the light through hole so as to change the light inlet area of the light through hole, the base is provided with a first sliding groove, a second sliding groove, a third sliding groove and a fourth sliding groove,
the first spout with the second spout is located lead to the relative both sides of unthreaded hole, the extending direction of first spout with the second spout is the same, the third spout with the fourth spout is located lead to the relative both sides of unthreaded hole, the third spout with the extending direction of fourth spout is the same, the third spout with the extending direction of first spout is perpendicular, the anti-dazzling screen is four, four anti-dazzling screen includes:
the first light shielding sheet is provided with a first sliding block, the first sliding block is arranged in the first sliding groove, the first light shielding sheet is provided with a fifth sliding groove and a sixth sliding groove which are spaced, the extending direction of the fifth sliding groove is perpendicular to the extending direction of the sixth sliding groove, and the included angle between the extending direction of the fifth sliding groove and the extending direction of the sixth sliding groove and the extending direction of the first sliding groove is 45 degrees;
the second light shielding sheet is provided with a second sliding block, the second sliding block is arranged in the second sliding groove, the second light shielding sheet is provided with a seventh sliding groove and an eighth sliding groove which are spaced, the extending direction of the seventh sliding groove is perpendicular to the extending direction of the eighth sliding groove, and the included angle between the extending direction of the seventh sliding groove and the extending direction of the eighth sliding groove and the extending direction of the second sliding groove is 45 degrees;
the third light-shielding sheet is provided with a third sliding block, a fourth sliding block and a fifth sliding block, the third sliding block is arranged in the third sliding groove, the fourth sliding block is arranged in the fifth sliding groove, and the fifth sliding block is arranged in the seventh sliding groove;
the piezoelectric motor is connected with one of the first shading sheet, the second shading sheet, the third shading sheet and the fourth shading sheet and is positioned on one side of the corresponding shading sheet, which is far away from the base.
2. The diaphragm assembly of claim 1, wherein the base further has a ninth sliding slot and a tenth sliding slot, an extending direction of the ninth sliding slot and an extending direction of the tenth sliding slot are both parallel to an extending direction of the first sliding slot, the ninth sliding slot and the tenth sliding slot are respectively located at two sides of the first sliding slot, the first light shielding plate further has a ninth slider and a tenth slider, the ninth slider is disposed in the ninth sliding slot, and the tenth slider is disposed in the tenth sliding slot.
3. The diaphragm assembly according to claim 1, wherein the base further has an eleventh sliding groove and a twelfth sliding groove, an extending direction of the eleventh sliding groove and an extending direction of the twelfth sliding groove are both parallel to an extending direction of the second sliding groove, the eleventh sliding groove and the twelfth sliding groove are respectively located on two sides of the second sliding groove, the second light shielding plate further has an eleventh sliding block and a twelfth sliding block, the eleventh sliding block is disposed in the eleventh sliding groove, and the twelfth sliding block is disposed in the twelfth sliding groove.
4. The diaphragm assembly according to claim 1, wherein the fifth slide groove and the sixth slide groove are provided on a surface of the first light-shielding plate facing the bottom wall of the housing chamber, the seventh slide groove and the eighth slide groove are provided on a surface of the second light-shielding plate facing the bottom wall of the housing chamber, and the piezoelectric motor is provided on the first light-shielding plate or the second light-shielding plate.
5. The diaphragm assembly according to claim 1, wherein the fifth slide groove and the sixth slide groove are provided on a surface of the first light-shielding plate away from the bottom wall of the housing chamber, the seventh slide groove and the eighth slide groove are provided on a surface of the second light-shielding plate away from the bottom wall of the housing chamber, and the piezoelectric motor is provided on one of the third light-shielding plate and the fourth light-shielding plate.
6. The aperture assembly of claim 1, wherein a surface of the piezoelectric motor facing the corresponding light shield abuts a surface of the corresponding light shield facing the piezoelectric motor to move the piezoelectric motor in synchronization with the corresponding light shield.
7. The diaphragm assembly of claim 1, wherein the number of the piezoelectric motors is plural, and the plural piezoelectric motors correspond to the plural light-shielding sheets one to one.
8. The diaphragm assembly of claim 7, wherein the base has a plurality of slide rails, the plurality of slide rails are spaced apart from each other along a circumferential direction of the light-passing hole, each of the light-shielding sheets has a slide block, and the plurality of slide blocks are correspondingly engaged with the plurality of slide rails.
9. The aperture assembly as claimed in claim 1, wherein the projection of the inner peripheral wall of each of the light-shielding sheets on the cross section perpendicular to the central axis of the light-passing hole comprises two straight line segments forming an included angle with each other, and the size of the included angle between two straight line segments on the same light-shielding sheet is equal to the size of the included angle between two adjacent straight line segments on two adjacent light-shielding sheets.
10. A camera, comprising:
a lens barrel; and
the aperture assembly of any of claims 1-9, disposed within the lens barrel.
11. The camera head of claim 10, further comprising a power supply circuit, wherein the piezoelectric motor is electrically connected to the power supply circuit.
12. An electronic device characterized by comprising the camera according to claim 10 or 11.
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| CN112822349B (en) * | 2019-11-18 | 2022-09-16 | 宁波舜宇光电信息有限公司 | Adjustable aperture, optical module, and adaptive aperture adjusting method and device |
| CN113741117B (en) * | 2020-05-13 | 2023-07-04 | 北京小米移动软件有限公司 | Aperture structure, camera and terminal equipment |
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| CN107147831A (en) * | 2017-05-31 | 2017-09-08 | 广东欧珀移动通信有限公司 | Aperture assemblies, CCD camera assembly and the electronic equipment of camera |
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| JP3983235B2 (en) * | 2004-08-20 | 2007-09-26 | ニスカ株式会社 | Light intensity adjustment device |
| KR100981956B1 (en) * | 2008-11-18 | 2010-09-13 | 주식회사 하이소닉 | Camera door opening and shutting apparatus |
| CN107065170B (en) * | 2017-05-12 | 2019-07-05 | 重庆金山医疗器械有限公司 | Fujinon electronic video endoscope light source optical path control system |
| CN107315303A (en) * | 2017-05-31 | 2017-11-03 | 广东欧珀移动通信有限公司 | Aperture assemblies, CCD camera assembly and the electronic equipment of camera |
| CN109387993B (en) * | 2017-08-04 | 2020-12-15 | 致能机电工业股份有限公司 | Mobile device with iris diaphragm variable function |
| CN208621888U (en) * | 2018-07-24 | 2019-03-19 | 杭州海康威视数字技术股份有限公司 | Lens aperture and image acquisition equipment |
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