JP6274730B2 - Light control device - Google Patents

Description

  The present invention relates to a light adjusting device that adjusts light by inserting / removing a light adjusting unit on an optical path of incident light.

  Imaging devices having an imaging function are widely used in various fields. Among them, there is a field of small-sized imaging devices having a relatively small shape. Some examples of such a small imaging device include an electronic endoscope, an optical microscope having an imaging function, a portable device having an imaging function, a micro video scope, and the like.

  Since conventional compact image pickup devices give priority to downsizing, fixed focus lenses, fixed aperture stops, fixed characteristic filters, and the like have been employed as optical elements such as lenses, diaphragms, and optical filters.

  On the other hand, in recent years, there has been a demand for higher image quality even in such a small imaging device, and a request to adopt a focus lens, a variable aperture, a variable characteristic filter, etc. as an optical element of the above-described light adjusting device, that is, light There is an increasing demand for functioning as a light adjusting device for adjusting the light intensity.

  Therefore, a light adjustment device that has been reduced in size so as to be applicable to a small imaging device has been proposed. Such a light adjusting device is configured by arranging optical elements so that it can be inserted into and removed from the optical path of incident light, for example, but can be inserted and removed in order to achieve higher functionality. Several optical elements have been proposed.

  For example, Japanese Patent Application Laid-Open No. 2010-164803 discloses a light adjusting device that adjusts incident light passing through an opening, which is displaced in different planes perpendicular to the optical axis direction on the substrate and the substrate. A plurality of incident light adjusting means, a plurality of driving means for driving the incident light adjusting means, and a separating member that separates moving spaces in which each of the plurality of incident light adjusting means is displaced in the respective planes by a predetermined interval , And a light adjusting device that displaces a plurality of incident light adjusting means to an opening position and a retracted position retracted from the opening position by a driving means.

  Specifically, in the light adjusting device described in the publication, a rotating shaft is provided at each of three circumferential positions of a disc-shaped substrate having an opening formed in the center, and three types of diaphragm plates are provided. Each of the rotating shafts can be rotated by changing the axial position. When viewed from the optical axis direction, it is moved to a common insertion position when inserted into the optical path of incident light, but when retracted from the optical path, the three diaphragm plates differ in the circumferential direction on the substrate. Each is moved to the retreat position. With such a configuration, the three diaphragm plates are driven without interfering with each other.

  By the way, when a plurality of light adjusting units such as a diaphragm, a lens, and an optical filter are provided, light adjustment in three or more stages is possible. For example, considering the case where there are two light adjusting units, incident light adjustment when the first light adjusting unit and the second light adjusting unit are in the retracted position, and only the first light adjusting unit is the insertion position. The incident light adjustment in the case where the second light adjustment unit is located at the insertion position and the incident light adjustment in the case where only the second light adjustment unit is at the insertion position are possible. Further, when both the first light adjusting unit and the second light adjusting unit are configured to function as insertion positions at the same time, the incident light can be adjusted in four steps by one more step. .

  Specifically, when both the first light adjustment unit and the second light adjustment unit are diaphragms, only the diaphragm having the smaller diaphragm opening functions effectively even if the first light adjustment unit and the second light adjustment unit are simultaneously set to the insertion position. Therefore, only three stages of incident light adjustment are possible. On the other hand, when both the first light adjustment unit and the second light adjustment unit are lenses, or when the first light adjustment unit is a lens and the second light adjustment unit is a diaphragm. Since both perform the respective functions when both are set at the insertion position at the same time, the incident light can be adjusted in four stages.

JP 2010-164803 A

  In the technique described in the above Japanese Patent Application Laid-Open No. 2010-164803, since the retracted positions of the plurality of diaphragm plates are different from each other, it is necessary to secure retreat areas for holding the diaphragm plates at the retracted positions, The radial size around the opening of the light adjusting device is increased.

  The present invention has been made in view of the above circumstances, and an object thereof is to provide a more compact light adjusting device capable of performing light adjustment in three or more stages.

In order to achieve the above object, a light adjusting apparatus according to an aspect of the present invention is a light adjusting apparatus that adjusts incident light passing through an opening, and is configured to protrude from a disk part and the disk part. A base end portion connected to the disc portion, the substrate having the opening in the disc portion, and a rotation center axis perpendicular to the substrate surface of the substrate, A first rotating shaft member attached to the substrate; a second rotating shaft member attached to the substrate so as to be rotatable about a rotation center axis perpendicular to the substrate surface of the substrate; A first light adjusting portion that is pivotally integrated with one rotating shaft member, and an axial position that is different from a joining position between the first rotating shaft member and the first light adjusting portion; A second light adjusting unit joined integrally to the rotary shaft member of the two rotating shafts, and attached to the substrate, By rotating the first rotating shaft member, the first light adjusting portion is rotated in a first plane parallel to the substrate surface, and the first insertion position is located on the optical path of the incident light. And a first drive position displaced to the first retracted position retracted from the optical path of the incident light, and the second rotating shaft member attached to the substrate and rotating the second rotating shaft member, A second insertion position located on the optical path of the incident light by rotating the second light adjusting portion in a second plane that is parallel to the substrate surface and different from the first plane; A second drive position that is displaced to a second retracted position that is retracted from the optical path of the incident light, and the first retracted position has a distance from the opening that is the first rotation position. Including a position farther than the shaft member, and the second retracted position has a distance from the opening, Includes position farther than the second rotating shaft member at a position overlapping the proximal end portion when viewed from the axial direction, is superimposed and the second retracted position and said first retracted position.

  According to the light adjustment device of the present invention, it is possible to perform light adjustment in three or more stages while further downsizing.

The disassembled perspective view which shows the structure of the light adjusting device in Embodiment 1 of this invention. The perspective view which shows the structure of the light adjusting device in the said Embodiment 1. FIG. The perspective view which shows the magnetic structure of the rotating shaft member in the said Embodiment 1. FIG. The figure which shows the mode at the time of one operation | movement of the drive part in the said Embodiment 1. FIG. The figure which shows the mode at the time of the other operation | movement of the drive part in the said Embodiment 1. FIG. In the said Embodiment 1, the arrangement | positioning figure which shows a mode when a 1st light adjustment part and a 2nd light adjustment part exist in an insertion position. In the said Embodiment 1, the arrangement | positioning figure which shows a mode when a 1st light adjustment part exists in a retracted position and a 2nd light adjustment part exists in an insertion position. In the said Embodiment 1, the arrangement | positioning figure which shows a mode when a 1st light adjustment part exists in an insertion position and a 2nd light adjustment part exists in a retracted position. In the said Embodiment 1, the arrangement | positioning figure which shows a mode when the 1st light adjustment part and the 2nd light adjustment part are in a retracted position The disassembled perspective view which shows the structure of the light adjusting device in Embodiment 2 of this invention. The perspective view which shows the structure of the light adjusting device in the said Embodiment 2. FIG. The disassembled perspective view which shows the structure of the light adjusting device in Embodiment 3 of this invention. The perspective view which shows the structure of the light adjusting device in the said Embodiment 3. FIG. The disassembled perspective view which shows the structure of the light adjusting device in Embodiment 4 of this invention. The perspective view which shows the structure of the light adjusting device in the said Embodiment 4. FIG. In the said Embodiment 4, the arrangement | positioning figure which shows a mode when a 1st light adjustment part and a 2nd light adjustment part exist in an insertion position. In the said Embodiment 4, the arrangement | positioning figure which shows a mode when a 1st light adjustment part exists in a retracted position and a 2nd light adjustment part exists in an insertion position. In the said Embodiment 4, the arrangement | positioning figure which shows a mode when a 1st light adjustment part exists in an insertion position and a 2nd light adjustment part exists in a retracted position. In the said Embodiment 4, the arrangement | positioning figure which shows a mode when a 1st light adjustment part and a 2nd light adjustment part exist in a retracted position. The disassembled perspective view which shows the structure of the light adjusting device in Embodiment 5 of this invention. The perspective view which shows the structure of the light adjusting device in the said Embodiment 5. FIG.

Embodiments of the present invention will be described below with reference to the drawings.
[Embodiment 1]

  FIG. 1 to FIG. 9 show Embodiment 1 of the present invention. FIG. 1 is an exploded perspective view showing the configuration of the light adjusting device, FIG. 2 is a perspective view showing the configuration of the light adjusting device, and FIG. 4 is a perspective view showing the magnetic configuration of the shaft member, FIG. 4 is a view showing a state during one operation of the drive unit, FIG. 5 is a view showing another state during the operation of the drive unit, and FIG. 6 is a first light adjustment. FIG. 7 shows the state when the first light adjusting unit is at the retracted position and the second light adjusting unit is at the inserting position. FIG. 8 is a layout diagram showing a state in which the first light adjusting unit is in the insertion position and the second light adjusting unit is in the retracted position. FIG. 9 is a diagram illustrating the first light adjusting unit and the second light adjusting unit. It is an arrangement plan showing a state when a portion is in the retracted position.

  The light adjustment device 1 is for adjusting incident light (light adjustment). As light adjustment here, light collection adjustment by a lens, light amount adjustment and pupil adjustment by a diaphragm, light amount adjustment by an ND filter, Some examples include polarization adjustment using a polarizing filter, band adjustment using a color filter, or a combination thereof. However, the present invention is not limited to these examples, and optical adjustment is widely applicable.

  Hereinafter, a case where light adjustment is adjustment using a lens will be described as an example.

  The light adjusting device 1 includes a first drive unit 2A, a second drive unit 2B, a first substrate 3A, a second substrate 3B, a separation substrate 4 as a separation member, and a first spacer 5A. A second spacer 5B, a first light adjusting unit 6A, a second light adjusting unit 6B, a first rotating shaft member 7A, and a second rotating shaft member 7B.

  First, the operation principle of the first and second drive units 2A and 2B will be described with reference to FIGS. The drive units 2A and 2B of the present embodiment are configured to rotate the rotary shaft members 7A and 7B made of a shaft magnet by a magnetic force. However, the driving is not limited to magnetic driving, and driving based on other driving principles may be used.

  First, the rotating shaft members 7A and 7B are configured as shaft magnets magnetized so as to have different magnetic poles around the rotation center axis. That is, the rotary shaft members 7A and 7B are, for example, cylindrical shaft-shaped members configured as permanent magnets, and the axial direction is parallel to the optical axis O (see FIG. 2 etc.) of the main optical system (not shown). Are arranged as follows. For example, as shown in FIG. 3, the rotary shaft members 7A and 7B have a two-pole configuration, in which one semi-cylindrical part in the columnar shape is an S pole 7s and the other semi-cylindrical part is an N pole 7n. Magnetized.

  And the 1st, 2nd drive part 2A, 2B has the coil core material 11 which adjoins the side surface of rotating shaft member 7A, 7B in the core material end, and the coil 12 wound around the coil core material 11. The rotating shaft members 7A and 7B are rotated by transmitting the magnetic force generated by passing an electric current through the coil 12 to the rotating shaft members 7A and 7B via the coil core member 11.

  The coil core material 11 is formed so as to form an open curve shape (that is, a shape having a cut in a part of the closed curve) by a magnetic material such as permalloy or silicon steel. In the example shown in FIGS. A linear one arm portion 11r around which the coil 12 is wound, a linear other arm portion 11l around which the coil 12 is wound, and a linear connecting portion that connects the one arm portion 11r and the other arm portion 11l. 11m, and a substantially triangular shape. And the front end surface 11r1 of the one arm portion 11r and the front end surface 11l1 of the other arm portion 11l serve as the surfaces of the pair of core members, and both side surfaces of the rotary shaft members 7A and 7B (in the illustrated example, the rotary shaft member 7A, Since 7B is cylindrical, both sides of the peripheral surfaces of the rotary shaft members 7A and 7B are sandwiched. In this manner, the coil core material 11 and the rotary shaft members 7A and 7B constitute a closed magnetic circuit so that the magnetism generated by the coil 12 is transmitted. In the above description, the closed curve has a substantially triangular shape, but it is needless to say that the closed curve is not limited to a substantially triangular shape.

  4 and 5, when a current in one direction is passed through the coil 12, one of the tip surface 11r1 of the one arm portion 11r and the tip surface 11l1 of the other arm portion 11l is an S pole, The other is magnetized to the N pole, and when a current in the other direction is passed through the coil 12, the magnetized pole is reversed. Thus, the rotating shaft members 7A and 7B rotate toward the minimum point of the magnetic field potential generated by the magnetic interaction between the magnetic poles of the rotating shaft members 7A and 7B and the first and second light beams. The adjusting units 6A and 6B move to the insertion position by applying a current in one direction to the coil 12, and move to the retracted position by applying a current in the other direction to the coil 12.

  Next, the housing of the light adjusting device 1 is formed by laminating the first substrate 3A, the first spacer 5A, the separation substrate 4, the second spacer 5B, and the second substrate 3B in this order. The first substrate 3A, the separation substrate 4 and the second substrate 3B are parallel to each other, and the substrate surfaces are perpendicular to the optical axis O of the main optical system. ing. The first drive unit 2A described above is attached to one surface side of the first substrate 3A (the upper surface side in FIG. 1 opposite to the side where the separation substrate 4 is present), and the second drive unit 2B is It is attached to the other surface side of the second substrate 3B (the lower surface side in FIG. 1 on the side opposite to the side where the separation substrate 4 is present).

  Each of the first substrate 3A and the second substrate 3B is configured by connecting a rectangular base end portion 3b to the disc portion 3a, and incident light is transmitted to the central portion of the disc portion 3a. A circular opening 3c, which is an example of a shape portion for passing through, is formed on the periphery of the disc portion 3a via the shaft magnet support member 21A or the shaft magnet support member 21B of the rotary shaft member 7A or the rotary shaft member 7B. U-shaped cutouts 3d for inserting one end side in the axial direction are formed. In the example shown in FIG. 1, the cutout 3d of the first substrate 3A is on the right side of the connection portion with the base end portion 3b, and the cutout 3d of the second substrate 3B is on the left side of the connection portion with the base end portion 3b. However, if the second substrate 3B is turned upside down, the shape of the second substrate 3B substantially matches that of the first substrate 3A.

  The separation substrate 4 which is a separation member is configured by connecting a rectangular base end portion 4b to the disc portion 4a in the same manner as the substrates 3A and 3B described above, and is incident on the central portion of the disc portion 4a. A circular opening 4c (see FIG. 9 and the like), which is an example of a shape part for allowing light to pass, corresponds to a position corresponding to the notch 3d of the substrates 3A and 3B on the peripheral part of the disk part 4a (accordingly, in this embodiment). U-shaped notches 4d are formed on both sides of the connecting portion with the base end 4b. Here, the opening 4c formed in the separation substrate 4 is an example of a shape that does not hinder incident light passing through the openings 3c of the substrates 3A and 3B. A notch 4d corresponding to the notch 3d of the first substrate 3A is a portion into which the axial base end side (lower end side in FIG. 1) of the rotating shaft member 7A is inserted, and a notch corresponding to the notch 3d of the second substrate 3B. 4d is a part into which the axial base end side (upper end side in FIG. 1) of the rotating shaft member 7B is inserted.

  The optical axis O of the main optical system passes through the openings 3c of the substrates 3A and 3B and the opening 4c of the separation substrate 4 described above.

  Further, the shaft magnet support member 21A is attached to the notch 3d of the first substrate 3A, and the shaft magnet support member 21B is attached to the notch 3d of the second substrate 3B, and is fixed using, for example, an adhesive. It has become so.

  The shaft magnet support members 21A and 21B are formed of a nonmagnetic material in a cylindrical shape, and are sandwiched between the distal end surface 11r1 of the one arm portion 11r of the coil core member 11 and the distal end surface 11l1 of the other arm portion 11l. A rectangular portion 21a to be fixed and a U-shaped step portion 21b to be attached to the notch 3d of the substrates 3A and 3B are provided. The optical axis O is shared by the rectangular portion 21a and the U-shaped step portion 21b. A shaft hole 21c formed by a circular hole penetrating in the direction is formed. Of these, the rotation shaft member 7A is inserted into the shaft hole 21c of the shaft magnet support member 21A, and the rotation shaft member 7B is inserted into the shaft hole 21c of the shaft magnet support member 21B.

  With such a configuration, the shaft magnet support members 21A and 21B maintain the distance between the rotary shaft members 7A and 7B and the front end surfaces 11r1 and 11l1 of the coil core member 11 within a certain range, and are driven by the drive units 2A and 2B. The drive of the rotating shaft members 7A and 7B is stabilized.

  Here, notches 3d are provided on the substrates 3A and 3B, and the shaft magnet support members 21A and 21B are supported via the shaft magnet support members 21A and 21B attached to the notches 3d. Alternatively, for example, circular holes may be formed in the substrates 3A and 3B, and the shaft magnet support members 21A and 21B may be supported by the circular holes.

  The first spacer 5 </ b> A defines a predetermined interval between the first substrate 3 </ b> A and the separation substrate 4, and the second spacer 5 </ b> B is a predetermined interval between the second substrate 3 </ b> B and the separation substrate 4. It defines the interval. A space between the first substrate 3A and the separation substrate 4 becomes a first space which is a moving space when the first light adjusting unit 6A rotates in the first plane, and is separated from the second substrate 3B. A space between the substrate 4 and the substrate 4 is a second space which is a moving space when the second light adjusting unit 6B rotates in the second plane.

  The first spacer 5A and the second spacer 5B are circles that are sandwiched along the circumferential direction in the front end side between the disc portion 3a of the first substrate 3A or the second substrate 3B and the disc portion 4a of the separation substrate 4. An arc-shaped tip spacer 5a and a base end spacer 5b sandwiched between the base end 3b of the first substrate 3A or the second substrate 3B and the base end 4b of the separation substrate 4 are configured. .

  In addition to the function of defining the predetermined interval, the leading end spacer 5a has a function of positioning the insertion position by further contacting the first light adjusting unit 6A or the second light adjusting unit 6B. That is, the tip spacer 5a of the first spacer 5A is disposed in the first space, and the first light adjusting unit 6A is described later on the rotation path in the first plane of the first light adjusting unit 6A. It is the 1st insertion position control member which controls to the 1st insertion position to do. Further, the leading end spacer 5a of the second spacer 5B is disposed in the second space, and the second light adjusting unit 6B is described later on a rotation path in the second plane of the second light adjusting unit 6B. It is the 2nd insertion position control member which controls to the 2nd insertion position to do.

  In addition to the function of defining the predetermined interval, the base end spacer 5b further functions to position the retracted position by contacting the first light adjusting unit 6A or the second light adjusting unit 6B. ing. That is, the base end spacer 5b of the first spacer 5A is disposed in the first space, and the first light adjusting unit 6A is disposed on the rotation path in the first plane of the first light adjusting unit 6A. This is a first retraction position restricting member that restricts to a first retraction position to be described later. In addition, the base end spacer 5b of the second spacer 5B is disposed in the second space, and the second light adjusting unit 6B is arranged on the rotation path in the second plane of the second light adjusting unit 6B. This is a second retraction position restricting member that restricts to a second retraction position described later.

  The first light adjusting unit 6A and the second light adjusting unit 6B have a function of adjusting light, and the rotating shaft members 7A and 7B described above are joined together in a rotating manner. When the rotation shaft member 7A is rotated by the first drive unit 2A, the first light adjusting unit 6A is rotated in the first space, and the rotation shaft member 7B is rotated by the second drive unit 2B. Then, the second light adjusting unit 6B rotates in the second space.

  In this example, the light adjusting units 6A and 6B are configured by attaching lenses 16A and 16B to a ring-shaped lens frame 15, respectively. Here, the lenses 16A and 16B are optical elements that are inserted on the optical path of the main optical system (not shown) to change the focal length or the focus position of the main optical system. At this time, it goes without saying that the lens 16A and the lens 16B may be lenses having different powers.

  The lens frame 15 has a holding portion 15a projecting from a part of the periphery, and the rotary shaft members 7A and 7B are fixed to the mounting hole provided in the holding portion 15a so as to rotate together.

  In such a configuration, the light adjusting device 1 rotates the first rotating shaft member 7A by the first driving unit 2A, thereby bringing the first light adjusting unit 6A into the first plane parallel to the substrate surface. The incident light is adjusted by rotating and displacing the first insertion position located on the optical path of the incident light and the first retraction position retracted from the optical path of the incident light.

  Further, the light adjusting device 1 rotates the second rotating shaft member 7B by the second driving unit 2B, thereby rotating the second light adjusting unit 6B in a second plane parallel to the substrate surface, The incident light is adjusted by displacing the second insertion position positioned on the optical path of the incident light and the second retracted position retracted from the optical path of the incident light. As described above, in the case where a plurality of light adjusting units are provided, three or more levels of light adjustment are possible. However, since both of the two light adjusting units are lenses, this embodiment has four levels. Incident light adjustment is possible.

  And when it sees from an axial direction, the arc which is the rotation locus of the 1st light adjustment part 6A centering on the 1st rotating shaft member 7A, and the 2nd centering on the 2nd rotating shaft member 7B Of the two points where the arc that is the rotation trajectory of the light adjusting unit 6B intersects, one point is the first insertion position and the second insertion position described above, and the other point is the first point described above. These are the first retracted position and the second retracted position.

  With reference to FIGS. 6 to 9, the four-stage incident light adjustment will be described.

  FIG. 6 shows a state in which the lens frame 15 of each of the light adjusting units 6A and 6B is in contact with the tip spacer 5a and the first light adjusting unit 6A and the second light adjusting unit 6B are in the insertion position. ing. At this time, both the lens 16A and the lens 16B are located on the optical path of the incident light. Accordingly, the lens 16A and the lens 16B are superimposed when viewed from the axial direction.

  Next, in FIG. 7, the lens frame 15 of the light adjusting unit 6A contacts the proximal end spacer 5b, the first light adjusting unit 6A contacts the retracted position, and the lens frame 15 of the light adjusting unit 6B contacts the distal end spacer 5a. The state when the second light adjusting unit 6B is in the insertion position is shown. At this time, the lens 16A is retracted from the optical path of the incident light, and the lens 16B is positioned on the optical path of the incident light.

  Further, in FIG. 8, the lens frame 15 of the light adjusting unit 6A contacts the distal end spacer 5a, the first light adjusting unit 6A contacts the insertion position, and the lens frame 15 of the light adjusting unit 6B contacts the proximal end spacer 5b. The state when the 2nd light adjustment part 6B exists in a retracted position is shown. At this time, the lens 16A is positioned on the optical path of the incident light, and the lens 16B is retracted from the optical path of the incident light.

  FIG. 9 shows the case where the lens frames 15 of the light adjusting portions 6A and 6B are in contact with the proximal spacer 5b, and the first light adjusting portion 6A and the second light adjusting portion 6B are in the retracted position. It shows a state. At this time, both the lens 16A and the lens 16B are retracted from the optical path of the incident light. Accordingly, the lens 16A and the lens 16B are superimposed when viewed from the axial direction.

  In addition, since the one where the axial direction length of rotating shaft member 7A, 7B is shorter is preferable from a viewpoint which prevents an axial blurring, in the above-mentioned, the 1st light adjustment part 6A is provided in the 1st board | substrate 3A side, and 2nd board | substrate 3B. The second light adjusting unit 6B is disposed on the side, but if the axial length of the rotating shaft members 7A and 7B is increased, the second light adjusting unit 6B is provided on the first substrate 3A side. It is also possible to employ a configuration in which the first light adjusting unit 6A is disposed on the second substrate 3B side.

  According to the first embodiment, since a plurality of pairs of light adjusting units and driving units are provided, it is possible to adjust incident light in three or more stages, and to perform light adjustment in a wider range. Can do.

  Since the retracted position of the first light adjusting unit 6A and the retracted position of the second light adjusting unit 6B are superimposed, the optical axis of the light adjusting device 1 is compared with the case where the retracted position is not superimposed. It is possible to reduce the size in the direction perpendicular to the direction.

  In addition, since the separation substrate 4 is provided, a first space that is a moving space in which the first light adjusting unit 6A rotates, and a second space that is a moving space in which the second light adjusting unit 6B rotates, Can be separated by a predetermined interval. Therefore, it is possible to prevent the first light adjusting unit 6A and the second light adjusting unit 6B from conflicting with each other. In this way, the operation of the first light adjusting unit 6A and the operation of the second light adjusting unit 6B can be reliably separated and performed. However, if the first light adjustment unit 6A and the second light adjustment unit 6B do not conflict even if the separation substrate 4 is not provided, the separation substrate 4 may be omitted.

  Further, since the spacers 5A and 5B are used, the first space between the first substrate 3A and the separation substrate 4 is defined as a predetermined interval that is necessary and sufficient for the first light adjusting unit 6A to rotate. The second space between the second substrate 3B and the separated substrate 4 can be defined at a predetermined interval necessary and sufficient for the second light adjusting unit 6B to rotate.

  The first rotating shaft member 7A and the second rotating shaft member 7B are attached to the substrate at different positions (that is, not coaxial) in a plane parallel to the substrate surface, and are separated from each other. Therefore, the magnetic action applied to the second rotating shaft member 7B when the first rotating shaft member 7A is rotated is reduced, and the first rotating shaft member 7B is rotated when the first rotating shaft member 7B is rotated. The magnetic action given to the rotary shaft member 7A can be reduced.

  In addition, since the drive units 2A and 2B are attached to the surfaces of the substrates 3A and 3B on the opposite side to the separated substrate 4, the movement of the light adjusting units 6A and 6B in the first and second spaces is prevented. The drive units 2A and 2B are not obstructed. Further, since the mounting surfaces of the drive units 2A and 2B on the substrates 3A and 3B are the outer surfaces of the light adjusting device 1, there is an advantage that the wiring connection to the coil 12 can be relatively easily performed. .

  Further, the substrate is constituted by the first substrate 3A and the second substrate 3B arranged in parallel so as to sandwich the separation substrate 4, and the space between the first substrate 3A and the separation substrate 4 is the first. The space, between the second substrate 3B and the separation substrate 4 is a second space, the first drive unit 2A is attached to the surface of the first substrate 3A opposite to the first space, Since the second drive unit 2B is attached to the surface opposite to the second space of the second substrate 3B, the distance between the first drive unit 2A and the second drive unit 2B is separated, The magnetic action that the first driving unit 2A gives to the second driving unit 2B can be reduced, and the magnetic action that the second driving unit 2B gives to the first driving unit 2A can be reduced.

  Since the separation member is the separation substrate 4 arranged in parallel with the substrates 3A and 3B, any spacers 5A and 5B can be sandwiched between the substrates from both sides, and there is an advantage that assembly is facilitated.

  Further, since the spacer 5A serves as both the first insertion position restriction member and the first retraction position restriction member, and the spacer 5B serves as the second insertion position restriction member and the second retraction position restriction member, a separate The first light adjusting unit 6A and the second light adjusting unit 6B can be positioned at the insertion position and the retracted position without adding a member.

  Further, since the shaft magnet support members 21A and 21B are provided, the distance between the rotary shaft members 7A and 7B and the tip surfaces 11r1 and 11l1 of the coil core member 11 can be maintained within a certain range, and the operation of the light adjusting device 1 Can be stabilized.

At this time, since the shaft magnet support members 21A and 21B are attached to the notches 3d provided in the substrates 3A and 3B, the shaft magnet support members 21A and 21B are attached from a direction perpendicular to the axial direction (substrate surface direction). It becomes possible. Therefore, if the shaft magnet support members 21A and 21B are inserted into the rotating shaft members 7A and 7B to which the light adjusting portions 6A and 6B are joined and then attached to the casing of the light adjusting device 1, the axial direction is increased. Mounting in the vertical direction is possible. In this case, the assemblability can be improved as compared with the case where the shaft magnet support members 21A and 21B are supported by the circular holes provided in the substrates 3A and 3B.
[Embodiment 2]

  10 and 11 show Embodiment 2 of the present invention. FIG. 10 is an exploded perspective view showing the configuration of the light adjusting device, and FIG. 11 is a perspective view showing the configuration of the light adjusting device.

  In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals and the description thereof is omitted as appropriate, and only different points will be mainly described.

  The light adjusting device 1 of the present embodiment includes a first light adjusting unit 6A and a first driving unit 2A in which the separating substrate 4 is configured as a two-sheet configuration of a first separating substrate 4A and a second separating substrate 4B. The first light adjustment unit 1A and the second light adjustment unit 1B including the second light adjustment unit 6B and the second drive unit 2B are configured first, and then the first light adjustment unit 1A The second light adjusting unit 1B is joined and manufactured.

  In other words, the first light adjusting unit 1A includes the first driving unit 2A and the first driving unit 2A in a housing in which the first spacer 5A is sandwiched and bonded between the first substrate 3A and the first separated substrate 4A. 1 light adjusting portion 6A and a first rotating shaft member 7A are assembled.

  Further, the second light adjusting unit 1B includes a second driving unit 2B, a second driving unit 2B, and a second housing 5B in a case in which the second spacer 5B is sandwiched between the second substrate 3B and the second separated substrate 4B. The second light adjusting unit 6B and the second rotating shaft member 7B are assembled.

  Accordingly, the first light adjustment unit 1A and the second light adjustment unit 1B have substantially the same configuration except for the difference between the lens 16A and the lens 16B.

  Thereafter, the first light adjustment unit 1A and the second light adjustment unit 1B are integrated by bonding the first separation substrate 4A and the second separation substrate 4B using, for example, an adhesive. A light adjusting device 1 as shown in FIG. 11 is configured.

According to the second embodiment, after the first light adjusting unit 1A and the second light adjusting unit 1B having substantially the same configuration are produced, the effects similar to those of the first embodiment described above are produced. Since the light adjusting device 1 is configured by joining the two light adjusting units 1A and 1B, the assemblability can be improved.
[Embodiment 3]

  12 and 13 show Embodiment 3 of the present invention. FIG. 12 is an exploded perspective view showing the configuration of the light adjusting device, and FIG. 13 is a perspective view showing the configuration of the light adjusting device.

  In the third embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals and the description thereof is omitted as appropriate, and only different points will be mainly described.

  In the light adjusting device 1 of the present embodiment, the first driving unit 2A and the second driving unit 2B are arranged only on the first substrate 3A.

  That is, the first drive unit 2A and the second drive unit 2B of the first and second embodiments described above have a size and shape surrounding the opening 3c, but the first drive unit 2A and the second drive unit 2A of the present embodiment. The drive unit 2B is further downsized and has a size that can be installed on the substrate surface around the opening 3c of the first substrate 3A (or the second substrate 3B), for example. .

  Corresponding to such a configuration, the second light adjusting unit 6B is disposed upside down, and the second rotating shaft member 7B of the present embodiment is the same as in the first and second embodiments. It is longer in the axial direction than the second rotating shaft member 7B.

  Further, two cutouts 3d for attaching the shaft magnet support members 21A and 21B and inserting the rotation shaft members 7A and 7B are formed in the first substrate 3A. It is to be noted that, in the same manner as in the first embodiment, two notches 4d are formed in the separation substrate 4 and one notch 3d is formed in the second substrate 3B.

  In the configuration of the present embodiment, neither the first drive unit 2A nor the second drive unit 2B is provided on the second substrate 3B. Therefore, if there is no problem in supporting the rotating shaft member 7B (for example, by supporting the rotating shaft member 7B by the notch 4d of the separation substrate 4), a configuration in which the second substrate 3B is omitted is adopted. It doesn't matter.

According to the third embodiment, the light adjusting device has the same effects as those of the first and second embodiments, and the arrangement of the two drive units 2A and 2B in the direction of the optical axis O is the same. It is possible to reduce the thickness of one optical axis O direction. Furthermore, since the drive unit is not disposed on the lower surface side of the second substrate 3B and the flat substrate surface is exposed as it is, there is an advantage that it can be easily incorporated into another member.
[Embodiment 4]

  14 to 19 show Embodiment 4 of the present invention. FIG. 14 is an exploded perspective view showing the structure of the light adjusting device, FIG. 15 is a perspective view showing the structure of the light adjusting device, and FIG. FIG. 17 is a layout diagram showing a state in which the first light adjusting unit and the second light adjusting unit are in the insertion position, and FIG. 17 is a diagram in which the first light adjusting unit is in the retracted position and the second light adjusting unit is in the insertion position. FIG. 18 is a layout diagram showing a state when the first light adjusting unit is in the insertion position and the second light adjusting unit is in the retracted position. FIG. 19 is a diagram illustrating the first light adjusting unit and the first light adjusting unit. It is an arrangement | positioning figure which shows a mode when the 2 light adjustment part exists in a retracted position.

  In the fourth embodiment, the same parts as those in the first to third embodiments are denoted by the same reference numerals and the description thereof is omitted as appropriate, and only different points will be mainly described.

  The rotation center axis of the first rotation shaft member 7A and the rotation center axis of the second rotation shaft member 7B are arranged on different straight lines (that is, on different axes) in the first to third embodiments. In this embodiment, they are arranged on the same straight line (that is, coaxially).

  That is, the notch 3d of the first substrate 3A and the second substrate 3B is on the left side of the connection portion with the base end portion 3b in the disc portion 3a, and the notch 4d of the separation substrate 4 is also the base end portion 4b in the disc portion 4a. Are provided on the left side of the connecting portion.

  Then, the shaft magnet support member 21A is attached to the notch 3d of the first substrate 3A, and the shaft magnet support member 21B is attached to the notch 3d of the second substrate 3B. The rotary shaft members 7A and 7B are inserted into the shaft magnet support members 21A and 21B, respectively, and the drive unit 2A is provided on the upper substrate surface of the first substrate 3A, and the drive unit 2B is provided on the lower substrate surface of the second substrate 3B. Are attached in the same manner as described above.

  In such a configuration, when viewed from the axial direction (more specifically, when viewed from the upper side to the lower side in FIGS. 14 and 15), the first light adjusting unit 6A and the second light All of the adjusting sections 6B rotate clockwise when moving from the insertion position to the retracted position, and rotate counterclockwise when moving from the retracted position to the insertion position.

  Then, as shown in FIGS. 16 to 19 when viewed from the axial direction, the lens 16A and the lens 16B at the insertion position are superimposed, and the lens 16A and the lens 16B at the retracted position are superimposed. The rotation path in the first plane of the first light adjustment unit 6A and the rotation path in the second plane of the second light adjustment unit 6B are further superimposed.

  According to the fourth embodiment, the rotation path of the first light adjusting unit 6A and the second light adjusting unit when viewed from the axial direction are obtained while having substantially the same effects as those of the first to third embodiments. Since the rotation path of 6B is superposed, it is possible to further reduce the substrate area unnecessary for the movement of the light adjusting units 6A and 6B. Specifically, within a range where there is no hindrance to installation of the drive units 2A and 2B, for example, a substrate portion included in the region D surrounded by a dotted line in FIGS. 16 to 19 (more specifically, the substrate 3A included in the region D, In addition to the portion 3B, all or part of the tip spacer 5a portion included in the region D may be further reduced. As a result, the size of the light adjusting device 1 in the direction perpendicular to the optical axis can be further reduced.

In addition, since the rotation center axis of the first rotation shaft member 7A and the rotation center axis of the second rotation shaft member 7B are arranged on the same straight line, the notch 4d provided on the separation substrate 4 is shared. There is an advantage that can be completed.
[Embodiment 5]

  20 and 21 show Embodiment 5 of the present invention. FIG. 20 is an exploded perspective view showing the configuration of the light adjusting device, and FIG. 21 is a perspective view showing the configuration of the light adjusting device.

  In the fifth embodiment, the same parts as those in the first to fourth embodiments are denoted by the same reference numerals and the description thereof is omitted as appropriate, and only different points will be mainly described.

  In the configuration of the fourth embodiment described above, the light adjusting device 1 according to the present embodiment has the configuration in which the separation substrate 4 includes the first separation substrate 4A and the second separation substrate 4B in the same manner as in the second embodiment described above. The first light adjusting unit 1A and the second light adjusting unit 1B are manufactured, and then the light adjusting units 1A and 1B are joined.

  In other words, the first light adjusting unit 1A includes the first driving unit 2A and the first driving unit 2A in a housing in which the first spacer 5A is sandwiched and bonded between the first substrate 3A and the first separated substrate 4A. 1 light adjusting portion 6A and a first rotating shaft member 7A are assembled.

  Further, the second light adjusting unit 1B includes a second driving unit 2B, a second driving unit 2B, and a second housing 5B in a case in which the second spacer 5B is sandwiched between the second substrate 3B and the second separated substrate 4B. The second light adjusting unit 6B and the second rotating shaft member 7B are assembled.

  At this time, since the first rotation shaft member 7A and the second rotation shaft member 7B are arranged such that the rotation center axes are on the same straight line, the first light adjustment unit 1A and the second light adjustment unit 1B. Is substantially a mirror surface configuration except for the difference between the lens 16A and the lens 16B.

  Thereafter, the first light adjustment unit 1A and the second light adjustment unit 1B are integrated by bonding the first separation substrate 4A and the second separation substrate 4B using, for example, an adhesive. The light adjusting device 1 as shown in FIG. 21 is configured in the same manner as in the second embodiment described above.

  According to the fifth embodiment, it is possible to obtain substantially the same effect as that of the above-described fourth embodiment, and it is also possible to improve the assemblability as in the second embodiment described above.

  In the above description, the case where there are two sets of the light adjusting unit, the driving unit, and the rotating shaft member has been described, but three or more sets may be used.

  For example, if the light adjusting device 1 shown in FIG. 13 is a first light adjusting unit and is combined with the second light adjusting unit 1B shown in FIG. 10, a set of a light adjusting unit, a drive unit, and a rotary shaft member Can be configured.

  Further, for example, if two light adjusting devices 1 shown in FIG. 13 are prepared and one is combined as a first light adjusting unit and the other is combined as a second light adjusting unit, a light adjusting unit, a driving unit, and A light adjusting device including four sets of rotating shaft members can be configured.

  Furthermore, if the wiring may be somewhat troublesome, if the drive unit is sandwiched between the light adjusting units, any number of light adjusting units can be combined and joined, that is, the light adjusting unit In addition, a light adjusting device including an arbitrary plurality of sets of drive units and rotating shaft members can be configured.

  Even when three or more sets of the light adjusting unit, the driving unit, and the rotating shaft member as described above are provided, if one of the two sets is focused, one of the first light adjusting units , The first drive unit and the first rotating shaft member, and the other is the second light adjusting unit, the second driving unit, and the second rotating shaft member.

  Note that the present invention is not limited to the above-described embodiment as it is, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various aspects of the invention can be formed by appropriately combining a plurality of components disclosed in the embodiment. For example, you may delete some components from all the components shown by embodiment. Furthermore, the constituent elements over different embodiments may be appropriately combined. Thus, it goes without saying that various modifications and applications are possible without departing from the spirit of the invention.

    [Appendix]

According to the embodiment of the present invention as described above in detail, the following configuration can be obtained.
(A1) A light adjusting device for adjusting incident light,
A first substrate having a first opening through which the incident light passes;
A first spaced-apart substrate disposed in parallel with the first substrate and formed in a shape that does not interfere with incident light passing through the first opening;
A first rotating shaft member attached to the first substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the first substrate;
A first light adjusting portion that is pivotally joined to the first rotating shaft member between the first substrate and the first separated substrate;
The first light adjusting unit is attached to the first substrate and rotates the first rotating shaft member to rotate the first light adjusting unit in a first plane parallel to the substrate surface, and the incident light. A first drive unit that is displaced to a first insertion position that is located on the optical path of the incident light and a first retraction position that is retracted from the optical path of the incident light;
A first light adjustment unit comprising:
A second substrate having a second opening through which the incident light passes;
A second spaced-apart substrate disposed in parallel with the second substrate and formed in a shape that does not interfere with incident light passing through the second opening;
A second rotating shaft member attached to the second substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the second substrate;
A second light adjusting unit joined integrally with the second rotating shaft member between the second substrate and the second separated substrate;
The second light adjusting unit is attached to the second substrate and rotates the second rotation shaft member, so that the second light adjusting unit is a surface parallel to the substrate surface and different from the first surface. A second drive unit that is rotated in a second plane and displaced to a second insertion position that is positioned on the optical path of the incident light and a second retracted position that is retracted from the optical path of the incident light; ,
A second light adjustment unit comprising:
Comprising
The first light adjustment unit and the second light adjustment unit are joined together so that the first opening and the second opening are overlapped when viewed from the traveling direction of the incident light. The light adjusting device characterized by being made.

(A2) The first light adjustment unit and the second light adjustment unit are bonded to each other on the first separation substrate and the second separation substrate,
The first separation substrate and the second separation substrate include a first space that is a moving space when the first light adjustment unit rotates in the first plane, and the second light adjustment. The light adjusting device according to appendix (1), characterized in that a second space, which is a moving space when the portion rotates in the second plane, is separated by a predetermined distance.

(B1) A light adjusting device for adjusting incident light,
A pair of parallel substrates having openings through which the incident light passes;
A rotation shaft member attached to the substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the substrate;
Between the pair of substrates, a light adjusting unit joined to the rotary shaft member so as to rotate together;
By rotating the rotating shaft member attached to the substrate, the light adjusting unit is rotated in a plane parallel to the substrate surface, and an insertion position positioned on the optical path of the incident light, and the input A drive unit displaced to a retracted position retracted from the optical path of the incident light; and
A light adjusting device comprising a plurality of light adjusting units arranged in a direction perpendicular to the substrate surface and bonded to the substrate surface.

(C1) A light adjusting device for adjusting incident light,
A pair of parallel substrates having shapes that allow the incident light to pass through;
Between the pair of substrates, a light adjusting unit movable parallel to the substrate surface of the substrate;
A driving device attached to the substrate and displacing the light adjusting unit into an insertion position located on the optical path of the incident light and a retreat position retracted from the optical path of the incident light;
A light adjusting device comprising a plurality of light adjusting units arranged in a direction perpendicular to the substrate surface and bonded to the substrate surface.

(C2) The drive device
A rotation shaft member attached to the substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the substrate, and being joined to the light adjustment unit so as to rotate together;
A drive unit attached to the substrate and rotating the rotating shaft member to rotate the light adjusting unit in a plane parallel to the substrate surface, and to displace the insertion position and the retreat position;
The light adjusting device according to Supplementary Note (C1), comprising:

(C3) The light adjusting device according to appendix (C1), wherein the shape portion that allows the incident light of the substrate to pass is an opening.

DESCRIPTION OF SYMBOLS 1 ... Light adjustment apparatus 1A ... 1st light adjustment unit 1B ... 2nd light adjustment unit 2A ... 1st drive part (drive device)
2B ... 2nd drive part (drive device)
3A ... 1st board | substrate 3B ... 2nd board | substrate 3a ... Disc part 3b ... Base end part 3c ... Opening 3d ... Notch 4 ... Separation board | substrate (separation member)
4A ... 1st separation board (separation member)
4B ... Second separation substrate (separation member)
4a ... disc part 4b ... base end part 4c ... opening 4d ... notch 5A ... first spacer 5B ... second spacer 5a ... tip spacer (insertion position regulating member)
5b: Base end spacer (retraction position regulating member)
6A ... 1st light adjustment part 6B ... 2nd light adjustment part 7A ... 1st rotating shaft member (drive device)
7B ... Second rotating shaft member (drive device)
7n ... N pole 7s ... S pole 11 ... coil core 11r ... one arm part 11l ... other arm part 11r1 ... tip face 11l1 ... tip face 11m ... connecting part 12 ... coil 15 ... lens frame 15a ... holding parts 16A, 16B ... Lens 21A, 21B ... Shaft magnet support member 21a ... Rectangular portion 21b ... U-shaped step portion 21c ... Shaft hole

Claims (9)

A light adjusting device for adjusting incident light passing through an aperture;
A disc portion and a base end portion connected to the disc portion so as to protrude from the disc portion, and the substrate having the opening in the disc portion ,
A first rotating shaft member attached to the substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the substrate;
A second rotating shaft member attached to the substrate so as to be rotatable around a rotation center axis perpendicular to the substrate surface of the substrate;
A first light adjusting unit joined integrally with the first rotating shaft member;
A second light adjustment unit that is pivotally joined to the second rotation shaft member at an axial position different from a joining position of the first rotation shaft member and the first light adjustment unit;
By rotating the first rotating shaft member attached to the substrate, the first light adjusting unit is rotated in a first plane parallel to the substrate surface, and the incident light is on the optical path. A first drive unit that is displaced to a first insertion position located at a first retracted position retracted from the optical path of the incident light;
The second light adjusting unit is attached to the substrate and rotates the second rotating shaft member, so that the second light adjusting unit is a surface parallel to the substrate surface and different from the first surface. A second drive unit that is rotated in a plane and displaced to a second insertion position located on the optical path of the incident light and a second retraction position retracted from the optical path of the incident light;
Comprising
The first retracted position includes a position where the distance from the opening is farther than the first rotating shaft member,
The second retracted position includes a position where the distance from the opening is farther than the second rotating shaft member,
The light adjusting device according to claim 1, wherein the first retracted position and the second retracted position are overlapped at a position overlapping with the base end when viewed from the axial direction. The first rotating shaft member and the second rotating shaft member are attached to the substrate at different positions in a plane parallel to the substrate surface,
When viewed from the axial direction, an arc that is a rotation trajectory of the first light adjusting unit centered on the first rotating shaft member and the second centered on the second rotating shaft member. One of the two points where the arc that is the rotation locus of the light adjusting unit intersects is the first insertion position and the second insertion position, and the other point is the first point. The light adjusting device according to claim 1, wherein the light adjusting device is a retracted position and the second retracted position. The first rotating shaft member and the second rotating shaft member are attached to the substrate so that the respective rotation center axes are arranged on the same straight line,
A rotation path in the first plane of the first light adjustment unit and a rotation path in the second plane of the second light adjustment unit when viewed from the axial direction further overlap. The light adjusting device according to claim 1, wherein the light adjusting device is provided. The substrate has a first substrate and a second substrate arranged in parallel to each other;
The first light adjusting unit and the second light adjusting unit are disposed between the first substrate and the second substrate,
One of the first driving unit and the second driving unit is mounted on the substrate surface of the first substrate opposite to the second substrate, and the other is the second driving unit. 4. The light adjusting device according to claim 2, wherein the light adjusting device is mounted on a substrate surface opposite to the first substrate of the first substrate. 5. The first light adjusting unit and the second light adjusting unit are disposed on one substrate surface side of the substrate,
The light adjusting device according to claim 2, wherein the first driving unit and the second driving unit are mounted on another substrate surface of the substrate. A first retracted position restricting member disposed on a rotation path in the first plane of the first light adjusting unit and restricting the first light adjusting unit to the first retracted position; ,
A second retracted position restricting member disposed on a rotation path in the second plane of the second light adjusting unit and restricting the second light adjusting unit to the second retracted position; ,
The light adjusting device according to claim 1, further comprising: A first insertion position restricting member disposed on a rotation path in the first plane of the first light adjusting portion and restricting the first light adjusting portion to the first insertion position; ,
A second insertion position restricting member disposed on a rotation path in the second plane of the second light adjusting portion and restricting the second light adjusting portion to the second insertion position; ,
The light adjusting device according to claim 6, further comprising:   A first space that is a moving space when the first light adjusting unit rotates in the first plane, and a moving space when the second light adjusting unit rotates in the second plane. The light adjusting apparatus according to claim 1, further comprising a separation member that separates the second space by a predetermined distance.   9. The light adjusting device according to claim 8, wherein the separation member is a separation substrate that is arranged in parallel with the substrate and is formed in a shape that does not block incident light passing through the opening.

Images