JP7182265B2 - Attachments, lens systems, electronics systems, and camera systems - Google Patents

Description

The present disclosure relates to an attachment, a lens system, an electronic device system, and a camera system that mediate connection between a lens barrel containing optical components and an electronic device that captures subject light emitted from the lens barrel.

Patent Literature 1 discloses a structure for fixing a small telescope to a camera-equipped mobile phone.

JP 2008-113099 A

The present disclosure provides an attachment and a lens system that allow attachment and detachment of a lens barrel to and from an electronic device with good positional accuracy, and that can suppress damage to the electronic device when the electronic device to which the lens barrel is attached is accidentally dropped. , an electronics system, and a camera system.

The present disclosure provides an attachment that mediates connection between a lens barrel containing optical components and an electronic device that captures subject light emitted from the lens barrel.
The attachment is
a plate-like main body having a light passage hole for allowing subject light to pass through;
a first mounting portion provided in the body portion and detachable from a lens barrel side mounting portion provided in the lens barrel;
a second mounting portion provided in the main body portion and detachable from a device-side mounting portion of the electronic device;
a positioning fitting portion that is provided on the second mounting portion and that can be fitted to the positioning portion of the device-side mounting portion of the electronic device.
Of the four types of attachments: the lens barrel side attachment, the first attachment, the device side attachment, and the second attachment, the first attachment or the second attachment is considered to be the most vulnerable to shock loads. there is
The second mounting portion is attached and detached by being slid with respect to the device-side mounting portion.

In the present disclosure, a lens system is provided that includes an attachment of the present disclosure and a lens barrel to which the attachment is attached.

In the present disclosure, an electronic device system is provided that includes the attachment of the present disclosure and an electronic device to which the attachment is attached.

In the present disclosure, a camera system is provided that includes a lens barrel and electronics connected via the attachment of the present disclosure.

In the present disclosure, a camera system that includes a lens barrel containing optical components, an electronic device that captures subject light emitted from the lens barrel, and an attachment that mediates connection between the lens barrel and the electronic device. provided.
The attachment is
a plate-like main body having a light passage hole for allowing subject light to pass through;
a first mounting portion provided in the body portion and detachable from the lens barrel side mounting portion of the lens barrel;
a second mounting portion provided in the main body portion and detachable from a device-side mounting portion of the electronic device;
a positioning fitting portion that is provided on the second mounting portion and that can be fitted to the positioning portion of the device-side mounting portion of the electronic device.
Of the four types of attachments: the lens barrel side attachment, the first attachment, the device side attachment, and the second attachment, the first attachment or the second attachment is considered to be the most vulnerable to shock loads. there is
the second mounting portion can be slidably inserted into the device-side mounting portion;
Two positioning parts are provided so as to be spaced apart in the slide insertion direction,
Two positioning fitting portions are provided so as to be separated from each other by the same interval as the interval between the positioning portions in the slide insertion direction,
The height of the positioning portion that contacts the positioning fitting portion first in the slide insertion direction is lower than the height of the positioning portion that contacts the positioning fitting portion later.

Advantageous Effects of Invention According to the present disclosure, it is possible to attach and detach a lens barrel to and from an electronic device with high positional accuracy, and to suppress damage to the electronic device when the electronic device to which the lens barrel is attached is accidentally dropped.

1 is a perspective view of a tablet computer according to Embodiment 1; FIG. 1 is a perspective view of a tablet computer with a lens barrel attached; FIG. It is a perspective view of a single lens barrel. 4 is a perspective view of the lens barrel to which the attachment is attached; FIG. FIG. 4 is an explanatory diagram of attachment of the lens barrel to the tablet computer; It is a perspective view of an attachment. It is a perspective view of a lens mounting frame. FIG. 10 is a perspective view showing a state in which the claw portion of the attachment and the lens mounting frame are fitted, omitting illustration of the main body of the tablet computer; FIG. 4 is a cross-sectional view of a portion of the lens barrel attached to the tablet computer;

Hereinafter, embodiments will be described in detail with reference to the drawings as appropriate. However, more detailed description than necessary may be omitted. For example, detailed descriptions of well-known matters and redundant descriptions of substantially the same configurations may be omitted. This is to avoid unnecessary verbosity in the following description and to facilitate understanding by those skilled in the art.

It is noted that the inventors provide the accompanying drawings and the following description for a full understanding of the present disclosure by those skilled in the art and are not intended to limit the claimed subject matter thereby. do not have.

(Background of this disclosure)
As described in Background Art, Patent Document 1 discloses a structure for fixing a small telescope to a camera-equipped mobile phone. In the fixing structure of Patent Document 1, a rubber belt is used to fix the small telescope to the camera-equipped mobile phone, or the small telescope is fixed to a holder fixed to the camera-equipped mobile phone with adhesive tape. With such a fixed structure, the mounting position of the camera-equipped mobile phone to the small telescope tends to vary, and there is a risk that the image of the subject cannot be properly formed on the imaging device of the camera-equipped mobile phone.

As a method of fixing a lens barrel such as a small telescope with high positional accuracy to an electronic device with an imaging function such as a camera-equipped mobile phone, a smartphone, a tablet computer, etc., for example, screws are used to fix the electronic device. and a lens barrel may be fixed.

However, with a fixing structure that uses screws, if the electronic device is accidentally dropped and the lens barrel receives an impact, the impact can damage not only the lens barrel but also the lens barrel of the electronic device. There is also a possibility that damage may occur to the connecting portion and the like.

The present disclosure provides an attachment and a lens system that allow attachment and detachment of a lens barrel to and from an electronic device with good positional accuracy, and that can suppress damage to the electronic device when the electronic device to which the lens barrel is attached is accidentally dropped. , an electronics system, and a camera system.

(Embodiment 1)
Embodiment 1 will be described below with reference to the drawings.

[1-1. configuration, etc.]
FIG. 1 is a perspective view of a tablet computer according to Embodiment 1. FIG. FIG. 1 is a perspective view showing the back (rear) side of the tablet computer 100. FIG. Tablet computer 100 is an example of an electronic device in the present disclosure. In FIG. 1, "upper", "lower", "left", "right", "front", and "back" are indicated for convenience of explanation and will be used in actual use. is not limited to

A camera unit 110 is provided on the rear surface (rear surface) of the tablet computer 100 . The camera unit 110 is provided with a light transmission window 111 that transmits subject light. A camera section 120 is arranged inside the light transmission window 111 .

The camera section 120 has an optical lens and an imaging device, and captures subject light incident through the light transmission window 111 . The light transmission window 111 is made of, for example, glass that transmits light. The optical lens may be a fixed focus lens or a variable focus autofocus lens. Also, the optical lens may be a zoom lens.

A display unit is provided on the front side (not shown) of the tablet computer 100 . The display unit is composed of, for example, an organic EL display or a liquid crystal display. A touch sensor or the like for detecting a user's touch operation is arranged on the surface of the display unit.

Inside the tablet computer 100, storage devices such as a CPU (Central Processing Unit), RAM (Random Access Memory), ROM (Read Only Memory), SSD (Solid State Drive), microphones, speakers, etc. are accommodated. It is

The tablet computer 100 of this embodiment is provided with a lens mounting frame 10 for detachably mounting the lens barrel 200 . The lens barrel 200 includes optical components such as lenses.

FIG. 2 is a perspective view of the tablet computer 100 to which the lens barrel 200 is attached. FIG. 2 shows an example in which the lens barrel 200 attached to the lens mounting frame 10 is a relatively large telephoto lens. Anything is fine.

FIG. 3 is a perspective view of the lens barrel 200 alone. FIG. 4 is a perspective view of the lens barrel to which the attachment is attached. FIG. 5 is an explanatory diagram of how to attach the lens barrel 200 to the tablet computer 100. As shown in FIG. 3 and 4 show the lens barrel 200 as seen obliquely from behind. FIG. 5 shows the lens barrel 200 and the like as viewed obliquely from the front. 5 shows only the camera unit 110 of the tablet computer 100. As shown in FIG.

As shown in FIG. 3, a cylindrical mounting portion 201 is provided at the rear end of the lens barrel 200 . A screw portion 202 is provided on the outer peripheral surface of the mounting portion 201 .

In this embodiment, when attaching the lens barrel 200 to the tablet computer 100, the attachment 20 is attached to the attachment portion 201 of the lens barrel 200 as shown in FIG. Then, as shown in FIG. 5, the lens barrel 200 in this state is attached to the tablet computer 100 . Specifically, the claw portions 22 and 23 of the attachment 20 are slid from above into the gap Sp between the lens mounting frame 10 and the housing 110a of the tablet computer 100 and fitted.

Next, structures such as the attachment 20 and the lens mounting frame 10 will be described in detail.

FIG. 6 is a perspective view of the attachment 20. FIG. As shown in FIG. 6, the attachment 20 includes a plate-like body portion 21 having a light passage hole 21a for transmitting subject light, a plurality of claw portions 22 and 23 protruding from the peripheral edge portion of the body portion 21, and a light source. and a screw portion 21b provided on the inner peripheral surface of the passage hole 21a. The attachment 20 is made of resin, for example. Note that the attachment 20 may be made of metal, as will be described later.

Through holes 22a and 23a are provided near the tips of the claw portions 22 and 23 so as to pass through the attachment 20 in the thickness direction.

The claw portions 22 and 23 of the attachment 20 are thinner than the body portion 21 .

FIG. 7 is a perspective view of the lens mounting frame 10. FIG. FIG. 7 shows the lens mounting frame 10 as seen obliquely from behind. The lens mounting frame 10 has a pair of left and right vertical frame portions 11 spaced apart so as to be parallel to each other, and a horizontal frame portion 12 connecting the lower ends of the vertical frame portions 11 to each other. The vertical frame portion 11 and the horizontal frame portion 12 are provided with screw insertion holes 11h and 12h through which screws for fixing the lens mounting frame 10 to the main body of the tablet computer 100 are inserted. FIG. 7 shows an example in which the lens mounting frame 10 is configured as a component separate from the main body of the tablet computer 100. However, the lens mounting frame 10 is formed by the main body of the tablet computer 100 (the housing 110a of the camera unit 110 (FIG. 5). see))). In that case, the screw insertion holes 11h and 12h may be omitted.

A front wall portion 11a extends from the left and right vertical frame portions 11 toward the other vertical frame portion 11 side.

Two protrusions 11b and 11c are provided on the rear surface of the front wall portion 11a so as to be vertically spaced apart from each other. The projection 11b on the upper side is lower than the projection 11c on the lower side (the amount of projection is reduced) for the reason described later.

FIG. 8 is a perspective view showing a state in which the claws 22 and 23 of the attachment 20 and the lens mounting frame 10 are fitted, omitting the main body of the tablet computer 100 . FIG. 9 is a cross-sectional view of the attachment portion of the lens barrel 200 to the tablet computer 100. As shown in FIG.

When the claw portions 22 and 23 of the attachment 20 are fitted to the lens mounting frame 10 of the tablet computer 100, the through hole 22a of the claw portion 22 on the upper side of the attachment 20 and the projection 11b on the upper side of the lens mounting frame 10 are aligned. The through hole 23a of the claw portion 23 on the lower side of the attachment 20 and the protrusion 11c on the lower side of the lens mounting frame 10 are fitted. Thereby, the attachment 20 is positioned with respect to the lens mounting frame 10 . Therefore, the lens barrel 200 is positioned with respect to the tablet computer 100 .

In this embodiment, the attachment 20 is provided with a structure that suppresses damage to the tablet computer 100 when the tablet computer 100 to which the lens barrel 200 is attached is accidentally dropped. Specifically, the threaded portion 202 of the lens barrel 200 (barrel-side mounting portion), the threaded portion 21b of the attachment 20 (first mounting portion), the claw portions 22 and 23 of the attachment 20 (second mounting portion), and Of the four types of mounting portions of the lens mounting frame 10 (equipment side mounting portion), the claw portions 22 and 23 of the attachment 20 are the most vulnerable to impact load. In the present embodiment, in order to make the claw portions 22 and 23 of the attachment 20 the most fragile, the attachment 20 is made of resin, and the thickness of the claw portions 22 and 23 of the attachment 20 is made larger than the thickness of the body portion 21. making it smaller.

[1-2. action etc.]
To attach the lens barrel 200 to the tablet computer 100, as shown in FIG. It is realized by slidingly inserting and fitting into the space Sp from above. In the fitted state, the through hole 22a of the claw portion 22 on the upper side of the attachment 20 and the projection 11b on the upper side of the lens mounting frame 10 are fitted, and the through hole 23a of the claw portion 23 on the lower side of the attachment 20 is fitted. and the projection 11c on the lower side of the lens mounting frame 10 are fitted. Thereby, the attachment 20 is positioned with respect to the lens mounting frame 10 , and thus the lens barrel 200 is positioned with respect to the tablet computer 100 . As described above, according to the present embodiment, it is possible to easily attach and position the lens barrel 200 to the tablet computer 100 .

According to the structure of the present embodiment, while the attachment 20 is being inserted into the lens mounting frame 10, the claw portion 23 on the lower side comes into contact with the protrusion 11b on the upper side. In order to insert the attachment 20 further downward, it is necessary for the lower claw portion 23 to elastically deform toward the housing 110a in the gap Sp (see FIGS. 8 and 9) to climb over the upper protrusion 11b. In the present embodiment, the projection 11b on the upper side has a smaller projection amount than the projection 11c on the lower side so as to facilitate this overriding (see FIG. 7). That is, the upper projection 11b is made lower than the lower projection 11c.

To remove the lens barrel 200 from the tablet computer 100 after use of the lens barrel 200 is finished, the lens barrel 200 is pulled up with respect to the tablet computer 100, and the attachment 20 and the lens mounting frame 10 are engaged. You just need to release the connection. Therefore, it can be easily removed.

Here, the user may accidentally drop the tablet computer 100 to which the lens barrel 200 is attached. In the present embodiment, among the four types of mounting portions, that is, the threaded portion 202 of the lens barrel 200, the threaded portion 21b of the attachment 20, the claws 22 and 23 of the attachment 20, and the lens mounting frame 10, the claws of the attachment 20 Portions 22 and 23 are the most vulnerable to impact loads. Therefore, for example, when the lens barrel 200 touches the ground when dropped and an impact load is applied to the lens barrel 200, the most fragile claws 22 and 23 of the attachment 20 are damaged. For example, the claws 22 and 23 are broken near their roots. This suppresses the impact load applied to the lens barrel 200 from being applied to the tablet computer 100 . Therefore, damage to the tablet computer 100 is suppressed. If the attachment 20 is damaged, the damaged attachment 20 can be removed and replaced with a spare attachment 20, so that the lens barrel 200 can be used to quickly resume photography.

As described above, according to the present embodiment, the lens barrel 200 can be easily attached to and detached from the tablet computer 100 with high positional accuracy. Damage to the tablet computer 100 can be suppressed even when the tablet computer 100 is misplaced.

[1-3. effects, etc.]
In this embodiment, an attachment 20 is provided that mediates connection between a lens barrel 200 containing optical components and a tablet computer 100 (an example of an electronic device) that captures subject light emitted from the lens barrel 200. be done.
The attachment 20 is
a plate-shaped body portion 21 having a light passage hole 21a for passing subject light;
a threaded portion 21b (first mounting portion) provided in the body portion 21 and detachable from a threaded portion 202 (barrel-side mounting portion) provided in the lens barrel 200;
Claw portions 22 and 23 (an example of a second mounting portion) provided on the main body portion 21 and attachable to and detachable from the lens mounting frame 10 (an example of the device-side mounting portion) of the tablet computer 100;
through-holes 22a and 23a (an example of a positioning fitting portion) provided in the claw portions 22 and 23 and capable of being fitted to the protrusions 11b and 11c (an example of the positioning portion) of the lens mounting frame 10 of the tablet computer 100; , provided.
Of the four types of mounting portions, that is, the threaded portion 202, the threaded portion 21b, the lens mounting frame 10, and the claw portions 22 and 23, the claw portions 22 and 23 are the most vulnerable to the impact load.

As a result, the lens barrel 200 can be attached to and detached from the tablet computer 100 with high positional accuracy, and damage to the tablet computer 100 when the tablet computer 100 to which the lens barrel 200 is attached is accidentally dropped. can be suppressed.

In the attachment 20 of the present embodiment, the claw portions 22 and 23 are attached and detached by sliding with respect to the lens mounting frame 10 .

This allows the lens barrel 200 to be easily attached to and detached from the tablet computer 100 .

In the attachment 20 of the present embodiment, the claw portions 22 and 23 protrude from the peripheral portion of the body portion 21 and have a claw shape that can be fitted into the lens mounting frame 10. The thickness of the claw portions 22 and 23 is made smaller than the thickness of the main body portion 21 so that the claw portions 22 and 23 are the weakest among the four types of attachment portions.

As a result, with a simple configuration in which the thickness of the claws 22 and 23 is smaller than the thickness of the main body 21, the claws 22 and 23 can be made most vulnerable to impact load among the four types of mounting portions.

In the attachment 20 of this embodiment,
The protrusions 11b and 11c have a convex shape (one of a convex shape, a concave shape, and a hole shape),
The through-holes 22a and 23a have a hole shape (the other shape of a convex shape and a concave shape or a hole shape).

As a result, the positioning of the tablet computer 100 and the lens barrel 200 is achieved by fitting the convex projections 11b and 11c on the tablet computer 100 side to the hole-shaped through holes 22a and 23a on the lens barrel 200 side. can be easily realized.

In this embodiment,
The claw portions 22 and 23 (second mounting portion) are configured to be slidably inserted into the lens mounting frame 10 (equipment side mounting portion),
Two protrusions 11b and 11c (positioning portions) are provided so as to be spaced apart in the slide insertion direction,
Two through holes 22a and 23a (positioning fitting portions) are provided so as to be spaced apart in the slide insertion direction at the same interval as the interval between the projections 11b and 11c,
The height of the protrusion 11b that contacts the through hole 23a first in the slide insertion direction is lower than the height of the protrusion 11c that contacts the through hole 23a later.

As a result, when the lens barrel 200 is attached to the tablet computer 100, the claws 23 on the lower side can easily climb over the projections 11b on the upper side.

According to this embodiment, the attachment 20 can be provided. Also, a lens system including the attachment 20 and the lens barrel 200 to which the attachment 20 is attached can be provided. Also, an electronic device system including the attachment 20 and the tablet computer 100 to which the attachment 20 is attached can be provided. Also, a camera system including the attachment 20 and the lens barrel 200 and the tablet computer 100 connected via the attachment 20 can be provided.

(Other embodiments)
As described above, Embodiment 1 has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited to this, and can be applied to embodiments in which modifications, replacements, additions, omissions, etc. are made as appropriate. Also, it is possible to combine the constituent elements described in the first embodiment to form a new embodiment. Therefore, other embodiments will be exemplified below.

(1) In the above-described embodiment, the attachment 20 is made of resin, and the thickness of the claw portions 22 and 23 of the attachment 20 is made smaller than the thickness of the body portion 21. Configured to be the most vulnerable. However, as long as the claw portions 22 and 23 are the most fragile among the four types of attachment portions, any configuration may be used to make them fragile. For example, instead of making the thickness of the claw portions 22 and 23 of the attachment 20 smaller than the thickness of the body portion 21, or in addition thereto, providing a slit near the base of the claw portions 22 and 23 of the attachment 20, for example, The claw portions 22 and 23 of the attachment 20 can be configured to be the weakest among the four types of attachment portions. Further, the attachment 20 may be made of elastic metal instead of resin as long as the claw portions 22 and 23 of the attachment 20 can be made fragile.

(2) In the above embodiment, the claws 22 and 23 (an example of the second mounting portion) of the attachment 20 are configured to be the most vulnerable among the four types of mounting portions. The threaded portion 21b (an example of the first mounting portion) of the attachment 20 may be configured to be the weakest among the four types of mounting portions. By making the threaded portion 21b the most fragile, when an impact load is applied to the lens barrel 200, the threaded portion 21b of the attachment 20 is broken first, thereby absorbing the impact load. For example, the crest of the screw portion 21b is damaged. This suppresses the impact load applied to the lens barrel 200 from being applied to the tablet computer 100 . Therefore, damage to the tablet computer 100 is suppressed.

(3) In the above embodiment, the through holes 22a and 23a are provided as the positioning fitting portions, and the protrusions 11b and 11c are provided as the positioning portions. However, the positioning portion has one of a convex shape, a concave shape, and a hole shape, and the positioning fitting portion has the other shape of the convex shape, the concave shape, and the hole shape. Any structure may be taken as long as it has

As described above, the embodiment has been described as an example of the technique of the present disclosure. To that end, the accompanying drawings and detailed description have been provided. Therefore, among the components described in the attached drawings and detailed description, there are not only components essential for solving the problem, but also components not essential for solving the problem in order to illustrate the above technology. can also be included. Therefore, it should not be immediately recognized that those non-essential components are essential just because they are described in the attached drawings and detailed description. In addition, the above-described embodiments are intended to illustrate the technology of the present disclosure, and various modifications, replacements, additions, omissions, etc. can be made within the scope of the claims or equivalents thereof.

INDUSTRIAL APPLICABILITY The present disclosure can be widely used for connection between a lens barrel containing optical components and an electronic device that captures subject light emitted from the lens barrel.

10 Lens mounting frame 11 Vertical frame portion 11a Front wall portions 11b, 11c Projection 11h Screw insertion hole 12 Horizontal frame portion 12h Screw insertion hole 20 Attachment 21 Body portion 21a Light passage hole 21b Screw portions 22, 23 Claw portions 22a, 23a Through hole 100 tablet computer 110 camera unit 110a housing 111 light transmission window 120 camera section 200 lens barrel 201 mounting section 202 screw section Sp clearance space

Claims (8)

An attachment that mediates connection between a lens barrel containing optical components and an electronic device that captures subject light emitted from the lens barrel,
a plate-shaped main body portion having a light passage hole through which the subject light passes;
a first attachment portion provided in the body portion and detachable from a lens barrel side attachment portion of the lens barrel;
a second mounting portion provided in the main body portion and detachable from a device-side mounting portion of the electronic device;
a positioning fitting portion provided in the second mounting portion and capable of being fitted to a positioning portion of the device-side mounting portion of the electronic device;
Of the four types of mounting portions, namely, the lens barrel side mounting portion, the first mounting portion, the device side mounting portion, and the second mounting portion, the first mounting portion or the second mounting portion is most resistant to impact load. are considered vulnerable ,
The second mounting portion is attached and detached by sliding with respect to the device-side mounting portion,
attachment. The second mounting portion protrudes from the peripheral portion of the main body portion and has a claw shape that can be fitted to the device-side mounting portion,
The thickness of the second mounting portion is made smaller than the thickness of the main body portion so that the second mounting portion is the most vulnerable among the four types of mounting portions to an impact load.
The attachment according to claim 1 . The second mounting portion protrudes from the peripheral portion of the main body portion and has a claw shape that can be fitted to the device-side mounting portion,
A slit is provided in the second mounting portion so that the second mounting portion is the most vulnerable among the four types of mounting portions to an impact load,
The attachment according to claim 1 . the positioning portion has one of a convex shape and a concave shape or a hole shape;
The positioning fitting portion has the other shape of a convex shape and a concave shape or a hole shape,
4. An attachment according to any one of claims 1-3 . an attachment according to any one of claims 1 to 4 ;
a lens barrel to which the attachment is attached,
lens system. an attachment according to any one of claims 1 to 4 ;
an electronic device to which the attachment is attached;
electronics system. an attachment according to any one of claims 1 to 4 ;
including a lens barrel and an electronic device connected via the attachment;
camera system. a lens barrel containing optical components;
an electronic device that captures subject light emitted from the lens barrel;
A camera system including an attachment that mediates connection between the lens barrel and the electronic device,
The attachment is
a plate-shaped main body portion having a light passage hole through which the subject light passes;
a first attachment portion provided in the body portion and detachable from a lens barrel side attachment portion of the lens barrel;
a second mounting portion provided in the main body portion and detachable from a device-side mounting portion of the electronic device;
a positioning fitting portion provided in the second mounting portion and capable of being fitted to a positioning portion of the device-side mounting portion of the electronic device;
Of the four types of mounting portions, namely, the lens barrel side mounting portion, the first mounting portion, the device side mounting portion, and the second mounting portion, the first mounting portion or the second mounting portion is most resistant to impact load. vulnerable to
The second mounting portion is configured to be slidably insertable into the device-side mounting portion,
Two positioning parts are provided so as to be spaced apart in the slide insertion direction,
Two positioning fitting portions are provided so as to be spaced apart at the same interval as the interval between the positioning portions in the slide insertion direction,
The height of the positioning portion that contacts the positioning fitting portion first in the slide insertion direction is lower than the height of the positioning portion that contacts the positioning fitting portion later,
camera system.

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