JP2016126310A - Smartphone case. - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smart phone case in which an optic hand shaking correction device can be provided not on inside of a housing of a smart phone, but on outside of the housing of the smart phone.SOLUTION: A smart phone case is configured so that, a smart phone is attached thereto, and has a three-layer structure for correcting hand shaking by swinging a smart phone itself in X-axis and Y-axis directions. An inner case comprises a claw for engaging an end of the smart phone, and a rotation axis extending in the X-axis direction which is coupled with a rotation axis hole of a middle case, and the middle case has a rotation axis extending in the Y-axis direction which is coupled with a rotation axis hole of an outer case. A drive unit for controlling diversion is attached to the inner case and the middle case, and a cable and lightening are stored in the outer case and can be drawn to outside of the outer case.SELECTED DRAWING: Figure 1

Description

The present invention relates to a smartphone case, and more particularly to a smartphone case that can correct a camera shake that occurs during shooting of a still image or a moving image and that can capture a blur-free image.

Many camera shake correction apparatuses have been put into practical use so that a clear image can be obtained by preventing image blurring on the imaging plane even if camera shake occurs during the shooting of a still image or a moving image.
As known in Patent Documents 1 and 2, camera shake correction devices for digital cameras mainly use a method in which some lenses in the photographic optical system are moved, and in smartphones and mobile phones, the lens unit is swung for correction. There is a method to do.

JP 2004-348147 A JP2007-93953

In the case of an optical camera shake correction device, a vibration sensor such as an angular velocity sensor that detects camera body shake, a calculation unit that calculates a correction amount based on a camera shake signal from the vibration sensor, and a correction signal from the calculation unit In response, an actuator that moves an optical system or the like is used. In the case of an electronic system, a technique is known in which a vibration sensor detects a shake angle of a photographing optical axis associated with camera shake as a camera shake signal and performs digital correction to cope with it.

Optical camera shake correction devices make it difficult to reduce the size of lenses and actuators, and mobile devices such as smartphones have long adopted electronic systems. The electronic method does not provide sufficient image stabilization for dark subjects and has side effects such as substantial screen reduction and image quality degradation. As a result, the optical image stabilizer can be installed on smartphones. However, there remains a problem that a sufficient amount of correction cannot be secured in a limited space of a smartphone.

It is said that the shake angle of the photographic optical axis in a still image should be 30 to 40 minutes, but it is said that a correction amount of about 3 to 4 times that in a moving image is necessary. The present invention has been made in consideration of the above contents, and the optical camera shake correction device is provided not outside the housing of the smartphone, but outside the housing, that is, in the smartphone case, to ensure a sufficient correction amount. .

A smartphone case that has a three-layer structure in which a smartphone is attached and the smartphone itself is shaken in the X-axis and Y-axis directions to perform camera shake correction, and the inner case is provided with a claw that locks the end portion of the smartphone. A rotation shaft extending in the axial direction is provided to couple the rotation shaft to the rotation shaft hole of the middle case, and a rotation shaft extending in the Y-axis direction is provided to the middle case to couple the rotation shaft to the rotation shaft hole of the soto case. A smartphone case having a cable and a lightning, which is provided with a drive unit for controlling positive motion in the inner case and the middle case, and is housed in the outer case and can be pulled out of the outer case.

A drive unit is provided in the inner case and the middle case, a secondary battery that supplies electricity to the drive unit is provided, the secondary battery and the smartphone are connected via a cable and lightning, and the smartphone can be charged. The secondary battery is provided between the outer case and the inner case, and provides a smartphone case that is arranged in a space in which a part of the inner case is cut out.

The feature of the present invention is that the smartphone itself, in which the lens and the image sensor are incorporated, corresponds to the deflection angle of the photographing optical axis, and does not cause any deterioration in image quality even when compared with the conventional correction method. is there. In addition, since there are fewer restrictions on the case side than in the case of the smartphone in terms of space, it is easy to ensure a sufficient correction amount, and optical camera shake correction that can sufficiently cope with moving images is possible.

It is possible to provide a smartphone case in which the optical camera shake correction device can be provided outside the housing instead of inside the smartphone housing.

Smartphone case according to an embodiment of the present invention The exploded perspective view showing the whole composition of the present invention. Sectional drawing showing the state which installed the secondary battery in the smart phone case. (A) is AA sectional drawing in FIG. 1, (b) is BB sectional drawing in FIG. FIG. 2 is a conceptual diagram showing main parts constituting a drive unit.

A smartphone case that has a three-layer structure in which a smartphone is attached and the smartphone itself is shaken in the X-axis and Y-axis directions to perform camera shake correction, and the inner case is provided with a claw that locks the end portion of the smartphone. A rotating shaft extending in the axial direction is provided to couple the rotating shaft to the rotating shaft hole of the middle case, and a rotating shaft extending in the Y-axis direction is provided to the middle case, and the rotating shaft is coupled to the rotating shaft hole of the outer case. A smartphone case with a cable and lightning that is equipped with a drive unit that controls the drive in the inner case and the inner case, and is housed in the outer case and can be pulled out of the outer case

A drive unit is provided in the inner case and the middle case, a secondary battery that supplies electricity to the drive unit is provided, the secondary battery and the smartphone are connected via a cable and lightning, and the smartphone can be charged. The secondary battery is provided between the outer case and the inner case, and provides a smartphone case that is arranged in a space in which a part of the inner case is cut out.

FIG. 1 is a diagram showing a state in which the smartphone 15 is set in the smartphone case 100. FIG. 2 is a diagram constituting the whole of the present invention, and will be described according to numbers.
The outer case 1 constitutes an external appearance part, and the smartphone case 100 constitutes a camera shake correction device. The lightning cover 2 is for fixing the lightning to the outer case. The secondary battery 3 is fixed to the outer case and is used for camera shake correction and charging of the smartphone.

The FPC 4 is fixed to the outer case. The charging connector 5 is a connector used for charging the secondary battery 3. The angular velocity sensors 6A6B are sensors that detect blur in the yaw and pitch directions. The FPC 7 is a sub FPC fixed to the middle case 11. The power switch 8 is a power switch of the camera shake correction device.

The battery checker button 9 checks the voltage of the secondary battery 3. The lightning and charging cable 10 is fixed to the outer case and can be pulled out of the case at any time. In order to avoid buffering with the secondary battery 3, the middle case 11 is shown in a state in which the center portion is largely cut away so as not to increase the thickness of the entire case in which the battery is incorporated. The secondary battery 3 is housed in a range of camera shake correction amounts in the yaw and pitch directions.

The torsion springs 12A12B are attached to the middle case 11 and the inner case 14 to generate power in the yaw and pitch directions. The drive unit 13A is attached to the middle case 11, and the drive unit 13B is attached to the inner case 14.

FIG. 4 shows an outline of the drive unit. The worm gear-02 of the stepping motor 01 meshes with the worm wheel 03. The cam gear 04 is integrated with the constant speed cam 05. The home position sensor 06 is a sensor that recognizes the home position of the cam gear 04. The cam follower 07 is in contact with the constant velocity cam 05 and generates a peristaltic motion.
(The drive units 13A and 13B are configured by a known technique.
(For example, refer to JP2007-93953)

The inner case 14 is provided with a plurality of holes for dissipating the heat of the battery generated by the nail for attaching the smartphone and the smartphone 15 itself. The two rotation shafts are coupled to the rotation shaft hole of the middle case 11. The smartphone becomes 15.

The present invention is a smart phone case which forms a three-layer case and incorporates a camera shake correction device utilizing a gimbal mechanism. The case includes an angular velocity sensor, a drive unit that corrects camera shake in the X-axis and Y-axis directions, a control circuit, components necessary for a camera shake correction device such as a battery, and functional components that are sub-necessary.

Smartphones often run out of batteries because they consume a lot of power when they use a lot of cameras. Or it was taken while paying attention to battery exhaustion.
If the battery runs out, all functions are lost. Simple battery-type chargers are commercially available at convenience stores and the like for emergency use, but they are not enough to resume shooting and are only temporary. In many cases, the battery is a single-use type, and there is a demand for improvement in terms of economy or portability.

If the camera function is improved and the shooting time becomes longer, the current battery capacity of the smartphone cannot be said to sufficiently satisfy the user's request. For users who frequently use camera functions, it is necessary to provide a stable camera shake correction device and a power source, and these two, which cannot be said to be sufficient, have been problems corresponding to both wheels of a car. As means for solving these two problems, the present invention is equipped with an image stabilization device, a large-capacity secondary battery used therein, a cable and a lightning for using the battery for charging in an outer case. corresponding to.

The number of users of video posting sites is increasing rapidly. Although it is said that the camera shake correction built in the smartphone is insufficient for video shooting, the smartphone case of the present invention is a method of swinging the smartphone itself within the case, so that the followability is improved while expanding the correction range. Therefore, it is possible to obtain a camera shake correction effect with high accuracy and excellent responsiveness.

There is a camera shake correction device dedicated to video shooting, called Steadicam Smooth, in iphone, which is used by many enthusiasts. This device requires a subtle set in advance and a certain level of proficiency when used, but this smartphone case can be easily used by anyone just by setting the smartphone in the case and turning on the power. it can.

The present invention can provide a camera shake correction device as an option even for a “cheap smartphone” that is not equipped with a camera shake correction device. Regardless of what the user needs, this is expected to have the effect of throwing a stone in the side-by-side development posture that has built in the image stabilization device and has uniformly burdened the cost to the user. it can.

Many smartphone cases are commercialized, but many of them prevent the heat dissipation of the battery of the smartphone body. When used for a long time, the battery of the smartphone becomes hot and dissipates heat through the case of the main body. However, if the case of the main body is covered with the smart phone case, the heat dissipation effect will be hindered.

Repeated use of a battery in a high heat state will accelerate deterioration and shorten the battery life. In that respect, the smartphone case of the present invention is formed in a three-layer structure, and the body temperature of the user's hand is not added to the inner case where the smartphone is directly set. Moreover, the contact surface of the inner case and the smartphone is provided with a plurality of holes to enhance the heat dissipation effect, prevent deterioration, and increase the battery life.

1 outer case 3 secondary battery 5 charging connector 8 camera shake correction power switch 10 lightning 11 middle case 13A13B drive unit 14 inner case 15 smartphone 100 smartphone case

Claims (4)

A smartphone case that has a three-layer structure in which a smartphone is attached and the smartphone itself is shaken in the X-axis and Y-axis directions to perform camera shake correction, and the inner case is provided with a claw that locks the end portion of the smartphone. A rotating shaft extending in the axial direction is provided to couple the rotating shaft to the rotating shaft hole of the middle case, and a rotating shaft extending in the Y-axis direction is provided to the middle case, and the rotating shaft is coupled to the rotating shaft hole of the outer case. A smartphone case with a cable and lightning that has a drive unit that controls peristalsis in the inner case and the inner case and is housed in the outer case and can be pulled out of the outer case. The smartphone case according to claim 1, wherein the drive unit is provided in the inner case and the inner case. The smartphone case according to claim 1 or 2, wherein a secondary battery that supplies electricity to the drive unit is provided, the secondary battery and the smartphone are connected via a cable and lightning, and charging of the smartphone is enabled. The smartphone case according to claim 3, wherein the secondary battery is located between the outer case and the inner case and is disposed in a space where a part of the middle case is cut.

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