JP2004102315A - Lens - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lens which enables a photographer to adjust a focus to a short distance and change a viewing angle by a simple operation. <P>SOLUTION: A lens 21 is composed of a lens main body which transmits light, and an adhesive member for attaching the lens main body to the photographing part 15 or display part of a camera by adhesive strength. The adhesive member has elasticity, absorbs the shape of the camera or the shape of the lens main body and attaches itself to the camera and the lens main body. <P>COPYRIGHT: (C)2004,JPO

Description

INDUSTRIAL APPLICABILITY The present invention is mounted on an information terminal such as a camera, in particular, for example, a mobile phone, a notebook personal computer (hereinafter, referred to as a notebook PC) or a personal data assistant (including an electronic organizer, hereinafter, referred to as a PDA). The present invention relates to a pinhole type camera, a handy type camera such as an instant camera and a digital camera, or a projector.

2. Description of the Related Art In recent years, a pinhole camera has been mounted on an information terminal such as a mobile phone, a notebook PC, or a PDA (for example, see Patent Document 1).
JP-A-2000-184013 (paragraph 0002, FIG. 2)

However, the cameras mounted on these information terminals have a fixed focal length of, for example, 0.3 to Δm, and cannot focus on a short distance. In particular, so-called close-up photography cannot be performed from a position only a few mm to a few cm away from the subject. Further, the photographer cannot change the angle of view (ie, narrow angle or wide angle) of the camera, the color of the lens, and the like arbitrarily. The present invention aims to solve these problems.

情報 In addition, there are already information terminals equipped with a camera having a so-called autofocus function. However, such an information terminal does not have a lens capable of close-up photography, and cannot focus on a short distance beyond the limit of the lens. In addition, since the configuration is complicated, there are also problems such as an increase in the size of the device, an increase in the price, and an increase in the failure rate. In addition, information terminals equipped with a large number of cameras having fixed focal lengths and angle of view have become widespread, and it is not possible to replace cameras mounted on these terminals. The present invention can also be applied to a camera mounted on an information terminal that is already widely used.

In addition, in handy-type cameras such as instant cameras and digital cameras, there are techniques for changing the configuration around the photographing unit of the camera in accordance with the configuration of the lens, and techniques for attaching the lens using a special adapter. However, in the former case, it is necessary to process the configuration around the photographing unit so that the lens can be attached, so that the price of the camera becomes high. May not be reusable. In the latter case, it is necessary to process the configuration around the photographing unit so that the adapter can be attached, which makes the camera expensive, and since the number of parts increases, the structure is complicated and it is not easy to remove, It is inconvenient to carry. The present invention also solves the problem of such a handy camera.

In order to solve the above-mentioned problem, a lens according to the present invention includes a lens body that transmits light, and an adhesive member that attaches the lens body and a photographing unit or a display unit of a photographing machine with adhesive force. It is characterized by having elasticity, absorbing the shape of the camera or the shape of the lens body, and attaching the camera to the camera and the lens body. Thus, according to the present invention, the lens body can be attached regardless of the shape of the photographing machine, and when the lens body is peeled off from the photographing machine, the adhesive member can be peeled off without leaving the photographing machine. it can.

The lens according to the present invention includes, for example, a lens body and a sheet or jig in a state in which a sheet or a jig for setting a focal point is inserted between the lens body and a photographing unit of a photographing machine. And the photographing unit of the photographing machine may be fixed. Alternatively, lens bodies having different thicknesses may be used. Alternatively, a plurality of lens bodies may be fixed in an overlapping manner. Thereby, the lens according to the present invention can suitably set the focal point position.

レ ン ズ A lens according to another aspect of the present invention includes a lens body that transmits light, and a suction cup that attaches the lens body to a photographing unit of the photographing machine by an attraction force. Note that a magnet may be used instead of the suction cup. Alternatively, attachment means using frictional force may be used. Alternatively, attachment means using an urging force may be used. Thus, according to another aspect of the invention, the lens body can be easily attached to the photographing unit of the photographing machine.

The present invention has the effect that the photographer can focus on a short distance or change the angle of view with a simple operation.

The present invention relates to a pinhole type camera mounted on various photographing apparatuses, for example, information terminals such as a mobile phone, a notebook PC, and a PDA (including an electronic organizer), or a handy type camera such as an instant camera or a digital camera. Or a projector or the like.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings, taking a camera mounted on an information terminal as an example. It should be noted that the drawings are only schematically shown to the extent that the present invention can be understood. In addition, in each of the drawings, common elements are denoted by the same reference numerals, and description thereof is omitted.

<First embodiment>
The lens according to the first embodiment is configured to be attached to the above-described photographing unit of the camera by an adhesive force. Hereinafter, the first embodiment will be described with reference to FIGS. FIG. 1 is a diagram showing an application example of the lens according to the first embodiment, FIG. 2 is a perspective view of the lens according to the first embodiment, and FIG. FIGS. 4A and 4B are diagrams showing the operation, FIG. 4 is a diagram showing a method of changing the focal point position, and FIG. 5 is a diagram showing a method of changing the angle of view.

As shown in FIG. 1, a camera mounted on an information terminal 11 (a mobile phone in the example of FIG. 1) such as a mobile phone, a notebook PC, a PDA (including an electronic organizer), an instant camera, a digital camera, and the like. The handy type camera 13 has an image capturing unit 15 for capturing an image therein. The imaging unit 15 includes an imaging element (not shown) for forming an image, a lens 17, and the like disposed inside, and a cover 19 that protects them outside. The cover 19 is made of a material such as transparent glass or plastic, and can transmit light. This cover 19 can be eliminated. Further, in the information terminal 11 and the handy camera 13, it is preferable that a portion that comes into contact with the lens is formed flat so that the lens according to the present invention can be suitably mounted.

Hereinafter, the case of the information terminal 11 will be described, but the same applies to a digital camera.

The lens according to the present invention includes a lens body 21 that transmits light, which is a so-called crystalline lens, and an adhesive member 23. The lens body 21 is made of a transparent material such as glass or plastic, and guides an external scene (for example, an image like the subject 27) to an image forming element (not shown) inside the information terminal 11. . The lens body 21 may be colored as described later. Further, the lens body 21 may be a lens having a refractive index of 0, that is, a so-called diopter. The adhesive member 23 is obtained by applying an adhesive to a sheet-like medium. The adhesive member 23 functions as attachment means for attaching the lens body 21 to the photographing unit 15 by adhesive force, and is attached to the cover 19 of the photographing unit 15 (however, when the cover 19 is removed from the photographing unit 15). Will be attached to the lens 17 and its surrounding housing). The adhesive member 23 is configured to be detachable from the photographing unit 15 of the photographing machine and detachable from the lens body 21. The sheet-shaped medium is made of, for example, a plastic material such as polyurethane or paper. It is desirable that the sheet-like medium of the adhesive member 23 has elasticity in consideration of easy attachment to the photographing unit 15. Accordingly, even when the photographing unit 15 has a step, it is possible to absorb and attach the step. In addition, since the arc of the lens body 21 can be absorbed by this, it is possible to attach the lens body 21 to various kinds of lens bodies 21. The adhesive member 23 can be formed by attaching an adhesive tape to both surfaces of the sheet-shaped medium without giving the sheet-shaped medium itself an adhesive property. Alternatively, the pressure-sensitive adhesive can be formed into a sheet shape without using a sheet-shaped medium.

FIG. 2 shows two specific configurations of such a lens. FIG. 2A illustrates a first configuration example of the lens according to the first embodiment, and FIG. 2B illustrates a second configuration example. The adhesive member 23 according to the first configuration example shown in FIG. 2A is made of a material having transparency so that light can pass therethrough, and has substantially the same shape / size as the lens body 21. ing. On the other hand, the adhesive member 23 according to the second configuration example shown in FIG. 2B is configured to have substantially the same shape and substantially the same size as the lens body 21, and the inside thereof is incorporated into the photographing unit 15. A hole 25 is provided so as not to block the applied light. Note that the adhesive member 23 according to the second configuration example shown in FIG. 2B is provided with the hole 25 for transmitting light, and thus does not need to be formed of a transparent material. Instead, it is desirable that the size of the hole 25 is not smaller than the size in which the adhesive member 23 does not appear in the image captured by the camera.

FIG. 3 shows the operation of the lens attachment. FIG. 3A shows an example when the lens is not mounted, and FIG. 3B shows an example when the lens is mounted. The example in FIG. 3B shows a third configuration example different from the first and second configuration examples shown in FIGS. 2A and 2B. The third configuration example means that the adhesive member 23 is formed larger than the lens body 21, a hole 25 for fitting the lens body 21 is provided inside the adhesive member 23, and only the surface facing the cover 19 is adhered. It is the one with the character.

In the example of FIG. 3A, the focal position of the lens 17 is farther than the subject 27, and the focus is not on the subject 27. In such a state, the image formed on the imaging element (not shown) has a blurred outline, that is, a so-called out-of-focus image.

On the other hand, in the example of FIG. 3B, the focal position is present on the subject 27 by attaching the lens according to the present invention (the lens body 21 and the adhesive member 23 in the first embodiment) to the cover 19. And the focus is on the subject 27. In such a state, the image formed on the imaging element (not shown) has a sharp outline. In the example of FIG. 3B, a so-called close-up lens having a convex shape for making the focal position close is used. When the focal position is set far, a concave, so-called telephoto lens is used.

FIG. 4 shows a method of changing the focal point using such a lens. FIG. 4A shows an example in which the focal point is changed by using lenses having different thicknesses, and FIG. 4B shows an example in which the focal point is changed by changing the number of the adhesive members 23. I have. 4 (a) and FIG. 4 (b) use the same adhesive member 23 as in FIG. 2 (b). The distance from the lens 17 to the subject 27 in FIGS. 4A and 4B is the same.

In the example shown in FIG. 4A, a lens having a specific magnification is selected from a plurality of lens bodies 21 having a specific magnification, and the focus is set on the subject 27.

On the other hand, in the example shown in FIG. 4B, a lens body 21 having a smaller thickness than the lens body 21 in the example shown in FIG. 4A is used. Instead, the cover 19 and the lens body are used. Adhesive members 23 are arranged between the superposed members 21. Thereby, the distance between the lens 17 and the lens body 21 is made larger than the distance in the example shown in FIG. The same effect can be obtained by changing the thickness of the adhesive member 23 instead of arranging the adhesive members 23 in an overlapping manner.

In the example shown in FIG. 4B, the magnification can be increased by increasing the distance between the lens 17 and the lens body 21, and can be decreased by decreasing the distance. Therefore, the photographer can focus on the subject 27 by setting the number of the adhesive members 23 to an arbitrary number. Therefore, in the example shown in FIG. 4B, it is not necessary to prepare a plurality of lenses having specific magnifications as shown in FIG. 4A, and the adhesive member 23 is manufactured at a lower cost than the lens body 21. Therefore, it can be provided at a lower cost than the example shown in FIG.

As described above, in the first embodiment, the photographer can arbitrarily change the focal point. In particular, when information such as characters is close-up at a short distance, it is effective for the following reasons.

In other words, in recent years, with the spread of communication technologies such as the Internet, it has been required that information such as characters described in books, reports, information boards, newspaper articles, maps, and the like be imported to the information terminal 11. . However, a conventional camera mounted on the information terminal 11 is set so that a person or a landscape is to be photographed, and therefore cannot focus on a short distance of about several centimeters. In other words, if you try to obtain an image that is in focus on the entire character, you can only obtain a small image that humans cannot recognize, and conversely, if you try to obtain an image that is large enough to be recognizable, the image will be out of focus Only images could be obtained. In this way, information such as characters taken from a book or the like with a conventional camera becomes a small image that cannot be recognized by humans or an image that is out of focus. I couldn't. Also, if information such as characters is to be transmitted to a remote place, it cannot be used with a conventional camera having a fixed focal length. For example, it was necessary to convert the data into browsable data and transmit it. As a result, time and labor are required for data conversion.

Also, for example, in a remote medical care system, even if a doctor tries to examine the affected part of a distant patient with a camera connected to a personal computer or the like, the affected part cannot be seen clearly, and the patient cannot be satisfactorily treated. .

According to the first embodiment, an image that is large enough to be recognized and is in focus can be obtained with a simple operation, and therefore, these problems can also be solved. Therefore, it is particularly effective in the above case.

Next, FIG. 5 shows a method of changing the angle of view using such a lens. FIG. 5A shows an example when the lens is not mounted, and FIG. 5B shows an example when the lens is mounted.

In the example of FIG. 5A, the angle of view of the lens 17 is a standard right diagonal.

On the other hand, in the example of FIG. 5B, the angle of view is widened by attaching the lens according to the present invention (the lens body 21 and the adhesive member 23 in the first embodiment) to the cover 19. I have. In the example of FIG. 5B, a so-called wide-angle lens having a concave shape for widening the angle of view is used. To narrow the angle of view, a convex, so-called narrow-angle lens is used.

As described above, in the first embodiment, the photographer can arbitrarily change the angle of view.

As described above, in the first embodiment, the photographer can focus on a short distance or change the angle of view with a simple operation. In addition, since the photographing unit 15 of the camera is covered, it is possible to prevent the periphery of the photographing unit 15 from being damaged, and it can be used as a cover for protecting the photographing unit 15.

<Second embodiment>
The lens according to the second embodiment is attached to the photographing unit 15 of the above-described camera by the attraction force of a suction cup, a magnet, or the like. Hereinafter, the second embodiment will be described with reference to FIG. FIG. 6 is a cross-sectional view of the lens according to the second embodiment.

For example, as shown in FIG. 6, a suction cup 29 as an attachment means is attached to the lens body 21. The suction cup 29 is made of a flexible member such as rubber. Attachment of the lens to the photographing section of the camera is performed by the photographer pressing the suction cup 29 against a flat area on the cover 19. At this time, the air inside the suction cup 29 is discharged to the outside, whereby the internal pressure becomes lower than the outside pressure, and the suction cup 29 is joined to the cover 19. The suction cup 29 may be fixed to the lens body 21 so as not to be detached from the lens body 21, or may be detachable. In the example shown in FIG. 6, the lens is attached to the photographing unit 15 of the camera by the suction cup 29, but a magnet may be used instead of the suction cup 29.

As described above, in the second embodiment, as in the first embodiment, the photographer can focus on a short distance or change the angle of view with a simple operation. In addition, since the photographing unit 15 of the camera is covered, it is possible to prevent the periphery of the photographing unit 15 from being damaged, and it can be used as a cover for protecting the photographing unit 15.

<Third embodiment>
The lens according to the third embodiment is configured to be attached to the photographing unit 15 of the camera by frictional force. Hereinafter, a third embodiment will be described with reference to FIGS. 7 is a cross-sectional view of the lens according to the third embodiment, FIG. 8 is a diagram showing a first modification of the lens according to the third embodiment, and FIG. 9 is a third embodiment. FIG. 9 is a view showing a second modification of the lens according to the first embodiment.

FIG. 7A shows an example when the lens according to the third embodiment is not mounted, and FIG. 7B shows an example when the lens is mounted. As shown in FIGS. 7A and 7B, the photographing unit 15 (that is, the lens 17 and the cover 19) of the camera is moved from the outer surface of the housing so as not to be damaged or subjected to impact. It is arranged at a position retracted by a predetermined space inside the body. Here, the predetermined space is referred to as a retreat site 31. On the other hand, the lens body 21 is formed with a fitting portion 33 that can be fitted to the retreating portion 31 of the camera, and the lens body 21 is formed on the camera photographing portion 15 by a frictional force between the fitting portion 33 and a side wall of the retreating portion 31 of the camera. It is attached.

FIG. 8A shows a configuration example of a lens according to a first modification according to the third embodiment, and FIGS. 8B and 8C show when the lens according to the first modification is mounted. An example is shown. In the first modification shown in FIG. 8, the lens is constituted only by the lens body 21. The lens body 21 is formed in a circular portion having a different diameter between the front and the back. Hereinafter, in FIG. 8A, the left portion is referred to as a first portion 35, and the right portion is referred to as a second portion 37. The diameter of the first part 35 corresponds to one of a plurality of diameters depending on the type of the camera mounted on the information terminal 11, and the diameter of the second part 37 is It corresponds to a different type. Here, it is assumed that the diameter of the first part 35 matches the diameter of the specification of the company A, and the diameter of the second part 37 matches the diameter of the specification of the company B. When the camera mounted on the information terminal 11 has the specifications of the company A, as shown in FIG. 8B, the lens body 21 is configured such that the first part 35 is the retreat part 31 of the camera (see FIG. 7). 8 (a) is attached to the retreat portion 31 of the camera. On the other hand, when the camera mounted on the information terminal 11 conforms to the specifications of the company B, as shown in FIG. 8C, the lens body 21 has the second part 37 facing the retreat part 31 of the camera. 8 (a) is attached to the retracted portion 31 of the camera. In the lens body 21, the first portion 35 and the second portion 37 are formed in the same arc. Therefore, even if it is turned over, it is formed so as to have the same magnification within at least the effective image area of the camera of the company A specification centered on the center of the circle serving as the optical axis. The lens body 21 and the camera are locked by the frictional force between the side wall of the receding portion 31 of the camera and the fitting portion 33.

FIG. 9A shows an example when the lens of the second modification according to the third embodiment is not mounted, and FIG. 9B shows an example when the lens of the second modification is mounted. Is shown. In the second modified example shown in FIG. 9, the lens includes the lens body 21 and a frame 39 as attachment means. The frame 39 has a projecting fitting portion 33 urged by a pressing means such as a spring (not shown). The frame 39 is configured to be detachable from the lens body 21. The lens body 21 and the camera are locked by the frictional force between the side wall of the receding portion 31 of the camera and the fitting portion 33.

7 (b), 8 (b), 8 (c), and 9 (b), the photographing unit 15 of the camera and the lens body 21 are drawn so as to be in contact with each other. It is preferable that the photographing unit 15 of the camera does not come into contact with the lens body 21 so that the photographing unit 15 of the camera is not scratched or shocked.

As described above, in the third embodiment, as in the first and second embodiments, the photographer can focus on a short distance or change the angle of view with a simple operation. it can. In addition, since the photographing unit 15 of the camera is covered, it is possible to prevent the periphery of the photographing unit 15 from being damaged, and it can be used as a cover for protecting the photographing unit 15.

<Fourth to sixth embodiments>
In the lenses according to the fourth to sixth embodiments, the lens body 21 is attached to the photographing unit 15 (see FIG. 1) of the camera by an urging force or a frictional force. The fourth to sixth embodiments will be described below with reference to FIGS. 10 is a perspective view of the lens according to the fourth embodiment, FIG. 11 is a perspective view of the lens according to the fifth embodiment, and FIG. 12 is a perspective view of the lens according to the sixth embodiment. FIG.

In the lens according to the fourth embodiment, the lens body 21 is attached to the photographing unit 15 (see FIG. 1) of the camera by the urging force of a coil-shaped or plate-shaped spring.

FIG. 10 shows three specific configuration examples of the lens according to the fourth embodiment. FIG. 10A illustrates a first configuration example of the lens according to the fourth embodiment, FIG. 10B illustrates a second configuration example, and FIG. 10C illustrates a third configuration. An example is shown.

As shown in FIG. 10A, the lens according to the first configuration example of the fourth embodiment is configured by a coil-shaped spring 247 in which the lens body 21 and the buffer member 248 are incorporated. .

で は In the first configuration example of the fourth embodiment, the lens body 21 is arranged at a position facing the photographing unit 15 of the camera. The buffer member 248 is disposed at a position of the lens body 21 facing the photographing unit 15 of the camera and at a position facing the back surface of the camera. Then, a coil-shaped spring 247 formed of an elastic material such as metal or plastic is attached to the camera so as to sandwich the photographing unit 15 of the camera from front and rear. At this time, the coil-shaped spring 247 is fixedly attached to the camera by the urging force. As a result, the lens body 21 and the buffer member 248 are fixed at positions facing the front and rear of the photographing unit 15 of the camera.

倍率 In the lens body 21, the magnification and the angle of view are set arbitrarily. In addition, the lens body 21 is a filter arbitrarily provided with a property of transmitting light of a specific wavelength such as ultraviolet light or infrared light, a property of enhancing light of a specific wavelength, a property of blocking light of a specific wavelength, and the like. It may be. In this case, the lens body 21 may be a lens that does not change the position of the focal point (that is, a lens having no power).

緩衝 Further, the buffer member 248 is preferably a member having elasticity such as rubber, for example, so as not to damage the camera. Thereby, even when the camera is thick, the lens body 21 can be attached. Further, even when the photographing unit 15 of the camera has an uneven shape, the lens body 21 can be attached to the photographing unit 15 of the camera.

As shown in FIG. 10B, the lens according to the second configuration example of the fourth embodiment is obtained by replacing the coil-shaped spring 247 of the lens according to the first configuration example with a plate-shaped spring 249. It has been replaced. In the second configuration example, the lens is attached to the camera in the same manner as the lens according to the first configuration example.

The lens according to the third configuration example of the fourth embodiment has a configuration in which a hole 250 is provided in a coil-shaped spring 247 of the lens according to the first configuration example, as shown in FIG. is there. In the third configuration example, when the imaging device is mounted on a terminal having a strap, such as a mobile phone, a strap of the strap can be passed through the hole 250. Thus, in the third configuration example, the lens and the photographing machine can be carried together. Therefore, the portability of the lens is improved, and the lens is less likely to be lost.

In the lens according to the fourth embodiment, the spring 247 (or 249) rotatably supports the buffer member 248 disposed at a position of the lens body 21 facing the photographing unit 15 of the camera. It may be configured.

The lens according to the fourth embodiment may have a configuration in which the spring 247 (or 249) is attached to the camera with a screw.

In the lens according to the fifth embodiment, the lens body 21 is attached to the photographing unit 15 of the camera by the urging force of the clip.

The lens according to the fifth embodiment is configured by a clip 255 in which the lens body 21 is incorporated, as shown in FIG.

In the fifth embodiment, the lens body 21 is arranged at a position facing the photographing unit 15 of the camera. Then, the clip 255 is attached to the camera so as to sandwich the photographing unit 15 of the camera from front and rear. At this time, the clip 255 is fixedly attached to the camera by the urging force. Thus, the lens body 21 is fixed at a position facing the photographing unit 15 of the camera.

The lens according to the sixth embodiment has a cover-type structure that covers the camera, and the lens body 21 is attached to the photographing unit 15 of the camera by frictional force.

The lens according to the sixth embodiment is configured by a cover 256 in which the lens body 21 is incorporated, as shown in FIG.

In the sixth embodiment, the lens body 21 is arranged at a position facing the photographing unit 15 of the camera. Then, the cover 256 is attached to the camera so as to cover the photographing unit 15 of the camera. Thus, the lens body 21 is fixed at a position facing the photographing unit 15 of the camera.

As described above, in the fourth to sixth embodiments, the photographer can focus on a short distance or change the angle of view with a simple operation, similarly to the first to third embodiments. can do. In addition, since the photographing unit 15 of the camera is covered, it is possible to prevent the periphery of the photographing unit 15 from being damaged, and it can be used as a cover for protecting the photographing unit 15. Moreover, since the lens body 21 can be freely attached to and detached from the photographing section 15 of the camera, the lens body 21 can be used repeatedly.

<Modified example of lens>
(First to Third Modifications)
In the first to third modifications, a step portion, a convex portion, and a concave portion are provided in the lens body 21. The photographer can easily remove the lens body 21 from the photographing section of the camera by hooking a nail, a pen point, or the like on these. Hereinafter, first to third modified examples of the lens will be described with reference to FIGS. 13 and 14. FIG. 13 is a diagram showing a first modification of the lens, FIG. 13A is a perspective view of the first modification, and FIG. 13B is a top view of the first modification. FIG. 13C shows a side surface of the first modification, and FIG. 13D shows a lower surface of the first modification. FIG. 14 is a diagram showing second and third modifications of the lens. FIG. 14A shows the second modification, and FIG. 14B shows the third modification.

レ ン ズ As shown in FIGS. 13A to 13D, the lens body 21 according to the first modification has a step portion 41 on a side surface. In the shapes 1 and 2, the direction of the step portion 41 is different. In the example illustrated in FIG. 13, the adhesive member 23 illustrated in FIG. 2B is attached to the lens body 21 according to the first modification.

レ ン ズ As shown in FIG. 14A, the lens body 21 according to the second modification has a convex portion 43 on the side surface. On the other hand, as shown in FIG. 14B, a concave portion 45 is provided on the side surface of the lens body 21 according to the third modification.

(Fourth modification)
In the fourth modified example, as shown in FIG. 15A, the lens main body 21 is colored so as to have light transmittance. Hereinafter, a fourth modification of the lens will be described with reference to FIG. FIG. 15 is a diagram showing a fourth modification of the lens. FIG. 15A shows the appearance of a lens body 21 according to the fourth modification, and FIG. 9 shows an example of how the unit 21 is attached.

色 The color given to the lens body 21 according to the fourth modification is, for example, black or yellow. The black lens body 21 is used to suppress transmission of light. For example, this is a case of shooting in a strong sunshine or shooting in a place where there is backlight. The yellow lens body 21 is used when it is desired to enhance visible light. For example, this is a case of shooting while the sunset is set or shooting in a dark place. The color is not limited to these, and various colors can be selected according to the photographer's intention. For example, when an image with a color tone such as sepia or pink is to be photographed, the lens body 21 having the color of the color tone to be photographed is selected. Thus, the photographer can respond to various uses by selecting the lens body 21 of an arbitrary color.

In a fourth modified example, for example, as shown in FIG. 15B, an adhesive member 23 serving as an attachment means is attached to the lens body 21, and the lens is moved by the adhesive force of the adhesive member 23 to the photographing unit of the camera. 15 attached.

(Fifth to seventh modified examples)
The lenses according to the fifth to seventh modifications are for photographing an image with a special effect. The fifth to seventh modifications are not limited to lenses that change the position of the focal point (that is, lenses having power), but are also applicable to lenses that do not change the position of the focal point (that is, lenses that do not have power). It is possible. Hereinafter, fifth to seventh modified examples will be described with reference to FIG. FIG. 16 is a diagram showing fifth to seventh modifications of the lens, FIG. 16 (a) shows a fifth modification, and FIG. 16 (b) shows a sixth modification. 16 (c) shows a seventh modification.

The lens according to the fifth modified example is formed of, for example, acrylic, vinyl chloride, polyvinyl chloride, polypropylene, polycarbonate, or the like, and is given a color (in some cases, a scratch) that can transmit light. I have. The color is arbitrarily selected from sepia, purple, pink, orange, red, blue, and others. In the lens according to the fifth modified example, as shown in FIG. 16A, the color of the colored portion (which may be scratched) 225 becomes thinner near the center of the lens body 21, and The color is darker near the outer periphery of. With such a configuration, the lens according to the fifth modified example can capture an image in which the vicinity of the center is clear and the periphery is unclear (that is, an image in which the periphery is blurred).

The lens according to the sixth modification has a lens body 21 provided with a V-shaped groove 227 as shown in FIG. With such a configuration, the lens according to the sixth modification example can capture an image divided into a plurality of sections.

レ ン ズ The lens according to the seventh modification is such that a plurality of cuts of an arbitrary shape are applied to the lens body 21 as shown in FIG. With such a configuration, the lens according to the seventh modification example can capture an irregularly reflected image (that is, an image in which the direction in which the subject appears in each part of the image).

As described above, according to the fifth to seventh modified examples, it is possible to photograph an image to which an arbitrary special effect has been applied according to the purpose of photographing, the photographer's preference, and the like.

(Eighth Modification)
The lens according to the eighth modification captures an image to which an arbitrary special effect has been applied by using variously processed filters. The eighth modification will be described below with reference to FIGS. FIGS. 17 and 18 are views showing an eighth modification of the lens.

The lens according to the eighth modification is, for example, a combination of a lens body 21 and a filter 229 that has been subjected to predetermined processing, as shown in FIG. 17A or 17B. is there. FIG. 17A shows an example in which the filter 229 is arranged below the lens body 21, and FIG. 17B shows an example in which the filter 229 is arranged above the lens body 21. The lens according to the eighth modification is attached to the photographing unit 15 of the camera by the adhesive member 23 or other attachment means.

The filter 229 is formed in a thin film shape from, for example, acrylic, vinyl chloride, polyvinyl chloride, polypropylene, polycarbonate, or the like.

(4) The filter 229 is subjected to various processes for photographing an image with an arbitrary special effect according to the purpose of photographing or the photographer's preference. As an example of the processing, for example, coloring processing such as the lens body 21 according to the fourth and fifth modifications or V-shaped groove such as the lens body 21 according to the sixth modification may be used. There is a forming process, a forming process of a plurality of cuts having an arbitrary shape like the lens body 21 according to the seventh modification, and the like. Further, for example, there is a process of giving characteristics of transmitting light of a specific wavelength such as ultraviolet light or infrared light, characteristics of enhancing light of a specific wavelength, characteristics of blocking light of a specific wavelength, and the like.

The lens according to the eighth modified example may be configured by combining a plurality of lens body portions 21 and a filter 229, for example, as shown in FIG. FIG. 18A shows an example in which the filter 229 is arranged below the plurality of lens bodies 21, but the filter 229 may be arranged above or between the plurality of lens bodies 21. The lens body 21 and the filter 229 are fixed to each other by the adhesive member 23 and other attachment means.

Further, in the lens according to the eighth modification, for example, as shown in FIG. 18B, even if the adhesive member 23 attached below the lens body 21 and the filter 229 is formed with a predetermined thickness. Good.

In addition, the lens according to the eighth modification may be, for example, a combination of the lens body 21, the filter 229, and the jig 223 formed with a predetermined thickness, as shown in FIG. . In the example shown in FIG. 18C, the number of the lens body 21 and the number of the filters 229 are one, but may be plural. Further, the filter 229 is arranged below the lens body 21, but may be arranged above the lens body 21. The filter 229 may be disposed between the lens main bodies 21 when there are a plurality of lens main bodies 21.

In the example shown in FIGS. 18B and 18C, the adhesive member 23 or the jig 223 is formed of a single member, but is formed by stacking a plurality of members. Can obtain the same effect. In addition, in the example shown in FIGS. 18B and 18C, since the lens has an arbitrary thickness secured by the adhesive member 23 or the jig 223, the lens can be configured firmly and the filter can be formed. When 229 is in the form of a thin film, the nail or the like is easily caught and can be easily peeled off.

When a plurality of lens bodies 21 are used, wide-angle imaging can be performed by, for example, setting the lens closer to the imaging unit 15 of the camera to a convex lens and the lens farther away to a concave lens. If the lens closer to the photographing unit 15 of the camera is a concave lens and the lens farther away is a convex lens, telephoto shooting can be performed.

As described above, in the eighth modification example, an image to which an arbitrary special effect has been applied can be captured. In particular, the example shown in FIG. 18 is suitable for telephoto photography, close-up photography, and the like because the magnification can be adjusted to an arbitrary size.

(Ninth modification)
The lens according to the ninth modification has a structure in which the lens 21 (or the filter 229) is housed in a housing (hereinafter, referred to as a frame structure). Hereinafter, a ninth modification will be described with reference to FIGS. FIGS. 19 to 21 are views showing a ninth modification of the lens, and FIG. 19 shows the appearance of the lens according to the first configuration example of the ninth modification viewed from an oblique direction. FIG. 20 shows a cross section of the lens according to the first configuration example of the ninth modification example from the lateral direction, and FIG. 21A shows the lens according to the second configuration example of the ninth modification example from an oblique direction. FIG. 21B shows an external appearance of a lens according to a third configuration example of the ninth modified example as viewed from an oblique direction.

In the lens according to the ninth modification, a housing is formed by the upper lid 231 and the lower lid 235 as in the first configuration example shown in FIGS. 19 and 20, for example. In the ninth modified example, a side far from the photographing unit 15 of the camera is described as an upper side, and a side closer to the photographing unit 15 of the camera is described as a lower side.

The upper lid 231 and the lower lid 235 are made of, for example, a member such as a resin, and may be colorless or colored.

The upper lid 231 has a mortar shape as shown in FIG. That is, the diameter of the upper end 231-1 is larger than the diameter of the lower end 231-2. Further, the upper lid 231 is provided with a hole 231-3 for not blocking light taken into the photographing unit 15 of the camera.

The lower lid 235 also has a mortar shape, as shown in FIG. That is, the diameter of the upper end 235-1 is larger than the diameter of the lower end 235-2. The lower cover 235 is also provided with a hole 235-3 for preventing light taken into the photographing unit 15 of the camera from being blocked.

Although the size of the upper lid 231 and the size of the lower lid 235 may be the same, as shown in FIG. 20, the diameter of the outer periphery of the upper end 231-1 of the upper lid 231 is smaller than that of the upper end 235-1 of the lower lid 235. It is preferable that the diameter is larger than the outer diameter because the upper lid 231 can be easily removed from the lower lid 235. As shown in FIG. 20, the inner diameter of the lower end 231-2 of the upper cover 231 is larger than the inner diameter of the lower end 235-2 of the lower cover 235 (that is, the inner diameter of the lower end 231-2 is larger). It is preferable that the diameter of the hole of the component becomes larger gradually than the diameter of the hole of the lower component) because the light introduced into the imaging unit 15 is not blocked.

The upper lid 231, the lens 21 (or the filter 229), and the lower lid 235 are combined in the manner shown by the arrow in FIG. That is, the lens 21 (or the filter 229) is inserted into the groove formed by the lower end portion 235-2 of the lower cover 235, and the upper cover 231 is put thereon. Thereby, the lens 21 (or the filter 229) is fixed in the groove formed by the lower end portion 235-2 of the lower cover 235. At this time, the upper lid 231 and the lower lid 235 are fixed by the frictional force of the side wall 233. Thereafter, the lower cover 235 is mounted on the photographing unit 15 of the camera by mounting means such as the adhesive member 23, for example. Note that, for example, when a large thickness is required, the adhesive member 23 may be formed by forming a shape as shown in FIG. 20 with a member such as urethane and applying an adhesive to the upper and lower surfaces thereof. Good.

レ ン ズ In the lens according to the ninth modification, the lens 21 (or the filter 229) can be replaced by removing the upper lid 231. As a result, it is possible to capture an image at an arbitrary magnification or an image with an arbitrary special effect. Alternatively, an image without any processing can be taken.

レ ン ズ The lens according to the ninth modification can be formed as in the second and third configuration examples shown in FIGS. 21 (a) and 21 (b).

That is, in the lens according to the ninth modification, for example, as in the second configuration example shown in FIG. 21A, the upper lid 237 may be formed of a transparent member such as acrylic. In the second configuration example, since the upper lid 237 is formed of a transparent member, there is no need to form the hole 231-3 as in the first configuration example. Therefore, the second configuration example can simplify the manufacturing process and can be manufactured at low cost. Further, by performing predetermined processing on the upper lid 237, it is possible to capture an image with an arbitrary special effect. In this case, the upper lid 237 can have the same function as the lens 21 or the filter 229 depending on the content of the processing, so that a configuration that does not require the lens 21 or the filter 229 is also possible.

Further, in the lens according to the ninth modification, for example, as in the third configuration example shown in FIG. 21B, a boss 241 is provided in the lower lid 235, and a hole 239 in which the boss 241 is fitted in the upper lid 231. May be provided. Thus, in the lens according to the ninth modification, when the frictional force of the side wall 233 is weak, the upper lid 231 and the lower lid 235 can be firmly fixed.

As described above, in the ninth modified example, similarly to the eighth modified example, it is possible to capture an image at a predetermined magnification with an arbitrary special effect. In the ninth modification, the lens 21 (or the filter 229) can be easily replaced simply by removing the upper cover 231 (or 237). In the ninth modification, an arbitrary thickness is ensured by the upper lid 231 (or 237) and the lower lid 235, so that the ninth modification can be configured to be more robust than the eighth modification. In the case where the filter 229 is a thin film, the ninth modification secures an arbitrary thickness by the upper lid 231 (or 237) and the lower lid 235, so that the filter 229 is firmly held. be able to.

(Tenth Modification)
In the lens according to the tenth modification, the housing is formed in a shape that can be fitted to the photographing unit 15 of the camera, and the housing is attached to the camera by frictional force. In addition, you may make it provide a hole in a housing | casing for letting a string pass. Thus, when the camera is, for example, a device to which a strap is attached (for example, a mobile phone or a handy camera), the lens according to the tenth modification is carried together with the camera by passing the strap through the strap. can do. Therefore, the portability of the lens can be improved, and the lens can be hardly lost.

Hereinafter, a tenth modified example will be described with reference to FIG. FIG. 22 is a diagram showing a tenth modification of the lens, FIG. 22 (a) shows the appearance of the lens according to the tenth modification from an obliquely upward direction, and FIG. 14 shows an appearance of a lens according to a modified example of the present invention from obliquely below.

In the lens according to the tenth modification, for example, as shown in FIGS. 22A and 22B, a housing is formed by the upper lid 241 and the lower lid 261. Note that the lens according to the tenth modified example can be formed by using only the lower lid 261 and not using the upper lid 241.

The upper lid 241 and the lower lid 261 are similar to the upper lid 237 (or 231) and the lower lid 235 according to the ninth modification, and may be colorless or colored.

The lower lid 261 has a lower end 263 projecting downward. The lower end 263 has a handy camera 13 such as an instant camera or a digital camera (or a mobile phone or a portable telephone). A groove 265 is provided that can be fitted to the imaging unit 15 of an information terminal 11) such as a notebook PC or PDA (including an electronic organizer). An upper end 267 projecting upward is formed on the lower lid 261, and the upper end 267 has a groove 269 for accommodating the lens body 21 (or the filter 229) and the adhesive member 23. Is provided. Further, the lower lid 261 is provided with a hole 271 for preventing light taken into the photographing unit 15 of the camera from being blocked.

The upper lid 241 has a lower end 243 projecting downward, and the lower end 243 is provided with a groove 245 that can be fitted with the upper end 267 of the lower lid 261. ing.

The upper lid 241, the lens 21 (or the filter 229), and the lower lid 261 are combined in the manner indicated by the arrow shown in FIG. That is, the lens 21 (or the filter 229) is inserted into the groove 269 of the lower cover 261. At this time, the lens 21 or the filter 229 is fixed in the groove 269 of the lower lid 261 by the adhesive force of the adhesive member 23. Alternatively, the lens 21 or the filter 229 is formed in a shape / size that can be fitted with the groove 269 of the lower lid 261 and is fixed in the groove 269 of the lower lid 261 by a frictional force generated by fitting the groove 269. You may make it so. Thereafter, the lower lid 261 is covered with the upper lid 241. At this time, the lower lid 261 and the upper lid 241 are fixed by a frictional force generated when the groove 245 of the upper lid 241 is fitted to the upper end 267 of the lower lid 261. Thereafter, the lower cover 261 is attached to the photographing unit 15 of the camera. At this time, the lower lid 261 and the photographing unit 15 of the camera are fixed by a frictional force generated when the groove 265 of the lower lid 261 is fitted with the photographing unit 15 of the camera.

Since the lens according to the tenth modification covers the photographing unit 15 of the camera, it can be prevented from being damaged around the photographing unit 15 and can be used as a cover for protecting the photographing unit 15. .

As described above, in the tenth modification, the housing is formed in a shape that can be fitted to the photographing unit 15 of the camera, and the housing is attached to the camera by frictional force. The tenth modification can provide the same effect as the ninth modification.

(Eleventh modification)
Hereinafter, an eleventh modification of the lens will be described with reference to FIG.

In the eleventh modification, as shown in FIG. 23, marks 47 indicating various information are written on the lens body 21. The various information includes, for example, “magnification”, “focal length”, “type of lens (wide-angle lens, narrow-angle lens, etc.)”, “company name”, “branch name”, and the like. The “company name” is, for example, the organization or service provider to which the photographer belongs, the maker of the information terminal 11, the manufacturer of the lens body 21, and the like. The “branch name” is, for example, the name of the branch of the organization to which the photographer belongs. The marks 47 indicating these various pieces of information are reflected in the captured image. Therefore, the photographer can record various information in the photographed image. Note that the mark 47 may be marked on the mounting means such as the adhesive member 23 instead of the lens body 21.

(Twelfth to eighteenth modifications)
The lenses according to the twelfth to eighteenth modified examples are such that a string can be attached to the lens body 21 or the attachment means (such as the adhesive member 23 and the suction cup 29). The lenses according to the twelfth to eighteenth modifications are carried together with the camera by passing the strap through the strap when the camera is, for example, a device to which a strap is attached (for example, a mobile phone or a handy camera). can do. Therefore, the lenses according to the twelfth to eighteenth modifications can improve portability and can be made hard to lose. Note that the lenses according to the twelfth to eighteenth modifications have different attachment structures and attachment positions of the string 203.

The twelfth to eighteenth modifications will be described below with reference to FIGS. 24 is a diagram illustrating a twelfth modification of the lens, FIGS. 25 to 27 are diagrams illustrating a thirteenth modification of the lens, and FIG. 28 is a diagram illustrating a fourteenth modification of the lens. FIGS. 29 and 30 show a fifteenth modification of the lens. FIG. 31 shows a sixteenth modification of the lens. FIG. 32 shows a seventeenth modification of the lens. FIG. 33 is a diagram showing an eighteenth modification of the lens.

レ ン ズ The lens according to the twelfth modification example is obtained by bonding a string 203 to the lens body 21 with an adhesive (or by melting), as shown in FIG.

As shown in FIG. 25, the lens according to the thirteenth modification has a hole 201 for passing the string 203 through the lens body 21 and the string 203 passing through the hole 201. In the lens according to the thirteenth modification, as shown in FIG. 26, an attachment means such as an adhesive member 23 is disposed below the lens body 21. FIG. 26A shows a configuration example in which a cutout 207 is provided in the adhesive member 23 (that is, an adhesive member formed of a transparent material) shown in FIG. 2) shows a configuration example in which a cutout 207 is provided in the adhesive member 23 shown in FIG. 2B (that is, an adhesive member provided with a hole 25 for transmitting light). As shown in FIG. 27, the notch 207 allows a space for the string 203 to pass through between the lens body 21 and the photographing unit 15 so that the string 203 does not hinder the attachment of the lens to the photographing unit 15 of the camera. It is for providing between. Thereby, the lens according to the thirteenth modification can be fixed in close contact with the photographing unit 15 without floating from the photographing unit 15 of the camera. In the lens according to the thirteenth modified example, the lens body 21 and the adhesive member 23 can be fixed to each other by the notch 207.

As shown in FIG. 28, the lens according to the fourteenth modification is configured such that the space between the lens main body 21 and the photographing unit 15 is made by processing the lens main body 21 according to the thirteenth modification. It is provided even larger than that. FIG. 28A shows a configuration example in which a cutout is provided in the lens main body 21, and FIG. 28B shows a configuration example in which the lens main body 21 is formed so that the vicinity of the hole 201 protrudes upward. Is shown.

In the twelfth to fourteenth modified examples, the lens can be attached to the photographing unit 15 of the camera so that the string 203 does not hinder the attachment, so that the lens is fixed to the photographing unit 15 without floating from the photographing unit 15 of the camera. be able to.

The lens according to the fifteenth modified example is fitted to the retreating part 31 of the camera, for example, as in the third embodiment shown in FIG. 15. As shown in FIG. 29, the lens according to the fifteenth modification has a notch 209 for passing the string 203 in the lens body 21. Note that FIG. 29A shows a configuration example in which a notch 209 is provided in the lens body 21 of the lens according to the thirteenth modification shown in FIG. 26A, and FIG. 26 shows a configuration example in which a notch 209 is provided in the lens body 21 of the lens according to the thirteenth modification shown in FIG. 26B. As shown in FIG. 30, the notch 209 allows the space for the string 203 to pass through the lens body 21 and the retreat portion 31 so that the string 203 does not hinder the fitting of the lens and the retreat portion 31 of the camera. This is for providing between them. As a result, the lens according to the fifteenth modified example is not affected by the string 203, and the camera passes through the hole 201 through the hole 203 as in the third embodiment shown in FIG. It can be fitted to the receding part 31 and attached to the photographing unit 15 of the camera.

As shown in FIG. 31, the lens according to the sixteenth modification has a hole 201 through which the string 203 passes through the adhesive member 23, the string 203 passes through the hole 201, and the string 203 passes through the lens body 21. A notch 209 is provided for the passage. FIG. 31A shows a configuration example in which a hole 201 is provided in the adhesive member 23 shown in FIG. 2A (that is, an adhesive member formed of a transparent material), and FIG. FIG. 2B shows a configuration example in which a hole 201 is provided in the adhesive member 23 shown in FIG. 2B (that is, an adhesive member provided with a hole 25 for transmitting light). In the lens according to the sixteenth modification, the string 203 does not hinder the fixing of the lens body 21 and the adhesive member 23 due to the cutout 209, so that the lens body 21 and the adhesive member 23 are fixed in close contact with each other. be able to.

As shown in FIG. 32, the lens according to the seventeenth modification has a projection 204 in which a hole 201 for passing the string 203 is formed in the adhesive member 23, and the string 203 is passed through the hole 201 of the projection 204. Things. FIG. 32A shows a configuration example in which a projection 204 is provided on the adhesive member 23 (that is, an adhesive member formed of a transparent material) 23 shown in FIG. 2A, and FIG. FIG. 2B shows a configuration example in which a projection 204 is provided on the adhesive member 23 shown in FIG. 2B (that is, an adhesive member provided with a hole 25 for transmitting light).

As shown in FIG. 33, the lens according to the eighteenth modified example has a projection 43 in which a hole 201 for passing the string 203 is formed in the lens body 21, and the string 203 passes through the hole 201 of the projection 43. It was done. FIG. 33A shows an example of a configuration in which a projection 43 is provided on the lens body 21 according to the first embodiment shown in FIG. 2, and FIG. 14 shows a configuration example in which a projection 43 is provided on the lens body 21 according to the second embodiment.

The tip of the string 203 according to the twelfth to eighteenth modifications may be fixed to the camera with, for example, a screw.

As described above, the lenses according to the twelfth to eighteenth modifications allow the string 203 to be attached to the lens body 21 or the attachment means. Can be carried with you. Therefore, the lenses according to the twelfth to eighteenth modifications can improve portability and can be made hard to lose.

(19th modification)
The lens according to the nineteenth modification is obtained by replacing the suction cup 29 as the attachment means according to the second embodiment shown in FIG. 6 with a suction cup having a Ω-shaped cross section. The nineteenth modification will be described below with reference to FIG.

レ ン ズ As shown in FIG. 34, the lens according to the nineteenth modification uses a suction cup 243 having an Ω-shaped cross section as an attachment means. The Ω-shaped suction cup 243 is attached to the photographing unit 15 of the camera by the ingress and egress of air in the space 245. Since the suction force of the suction cup 243 increases as the size of the space 245 increases, the suction force can be higher than that of the suction cup 243 shown in FIG. Further, since the suction cup 243 can be attached to the photographing unit 15 of the camera due to the secrecy of the space 245, even if the secrecy between the lens body 21 and the suction cup 243 is low, the lens can be attached to the photographing unit of the camera. 15 can be attached. Therefore, in the lens according to the nineteenth modification, the lens can be firmly attached to the photographing unit 15 of the camera without questioning the confidentiality between the lens body 21 and the suction cup 243.

(20th modification)
The lens according to the twentieth modification shows a configuration example in the case where a magnet is used as the mounting means (that is, the mounting means by the attraction force) according to the second embodiment. Hereinafter, a twentieth modification will be described with reference to FIG.

レ ン ズ The lens according to the twentieth modification example includes, for example, as shown in FIG. 35, two adhesive members 23a and 23b mixed with iron or a magnetic material. FIG. 35A shows a configuration example in which the adhesive member 23 (that is, an adhesive member formed of a transparent material) 23 shown in FIG. 2A is divided into two parts, and FIG. FIG. 2B shows a configuration example in which the adhesive member 23 shown in FIG. 2B (that is, the adhesive member provided with the hole 25 for transmitting light) 23 is divided into two. A hole 25 is formed in the two adhesive members 23a and 23b shown in FIG.

The adhesive member 23a is fixed to the lens body 21 by adhesive force. Further, the adhesive member 23b is fixed to the photographing unit 15 of the camera by the adhesive force. The lens body 21 is attached to the photographing unit 15 of the camera by the attraction force of the two adhesive members 23a and 23b.

The twentieth modification can be further modified. For example, the member 23b may be embedded around the photographing unit 15 of the camera.

Here, the members 23a and 23b are referred to as "adhesive members" for convenience, assuming that the members 23a and 23b are fixed to the lens body 21 or the photographing unit 15 of the camera by the adhesive force. However, the members 23a and 23b can be fixed to the lens body 21 or the photographing unit 15 of the camera by means other than adhesive force, and the present invention includes such a configuration.

(21st to 23rd modifications)
The lenses according to the twenty-first to twenty-third modifications can irradiate light to a subject from around the lens body 21. The lenses according to the twenty-first to twenty-third modified examples can shoot while irradiating a subject with light, and are suitable for performing close-up photography in which the amount of light tends to be insufficient for the following reasons. That is, in the close-up shooting, when the subject is small, the distance from the camera light is large, so that the amount of light tends to be insufficient. As a result, only unclear images could be taken. On the other hand, the lenses according to the twenty-first to twenty-third modifications can irradiate the subject with light, so that a sufficient amount of light can be secured, and a clear image can be captured even with a small subject. it can.

Hereinafter, 21st to 23rd modifications will be described with reference to FIGS. 36 to 39. FIG. 36 is a diagram showing a twenty-first modification of the lens, and shows the appearance of the lens according to the twenty-first modification viewed from an oblique direction. FIG. 37 is a diagram showing a twenty-first modification of the lens. FIG. 37 (a) shows the configuration of the A1-B1 section in FIG. 36, and FIG. 37 (b) is the arrow in FIG. 37 (a). FIG. 37 (c) shows the configuration taken along the line A2-B2 in FIG. FIG. 38 is a diagram showing a twenty-second modification of the lens. FIG. 39 is a diagram showing a twenty-third modification of the lens. FIG. 39 (a) shows a configuration example of the lens body 21 according to the twenty-third modification, and FIG. 39 (b) shows the entire lens. This shows the appearance seen from an oblique direction.

The lens according to the twenty-first modification includes a clip 255 for attaching to the photographing unit 15 of the camera, for example, as shown in FIG. The clip 255 is provided with a condenser 259 for guiding light emitted from a light 257 provided to the camera to the lens body 21. As shown in FIG. 37A, the light collector 259 is provided with a reflector 261 at a position facing the light 257 provided in the camera, and collects light by the reflector 261. As shown in FIGS. 37A and 37B, an optical fiber 263 is embedded in the condenser 259, and the light collected by the reflection plate 261 by the optical fiber 263 is used as a lens body. Lead to 21. For example, as shown in FIG. 37C, the optical fiber 263 is disposed so as to surround the subject from multiple directions so that the subject is not shadowed, and irradiates the subject with light from multiple directions. The camera takes in the image at that time into the apparatus via the cover 19 and acquires the image at that time by an imaging element (not shown). Note that the reflection plate 261 may be a prism. Further, the optical fiber 263 may be an optical path formed of a transparent plastic material.

As shown in FIG. 38, the lens according to the twenty-second modification includes a light emitting unit 265 for irradiating light, and a light collecting unit 267 for guiding light emitted from the light emitting unit 265 to the lens body 21. Is provided. The light emitting unit 265 incorporates, for example, an LED (not shown) for emitting light, and also incorporates a battery BOX (not shown) containing a battery for supplying power to the LED. . The structure of the light collector 267 is the same as that of the light collector 259 according to the twenty-first modification. That is, a reflector (not shown) is provided in the light-collecting unit 267 at a position facing the LED provided in the light-emitting unit 265, and an optical fiber is embedded. The condensing unit 267 collects light by a reflector, guides the light to the lens body 21, and irradiates the subject with light from multiple directions. The camera takes in the image at that time into the apparatus via the cover 19 and acquires the image at that time by an imaging element (not shown).

As shown in FIG. 39A, the lens according to the twenty-third modification has one or a plurality of cutouts 273 provided in the lens body 21 and an LED 275 for emitting light, for example, is incorporated therein. Things. As shown in FIG. 39B, the lens according to the twenty-third modification includes a power supply unit 269 in which a battery BOX (not shown) for storing a battery is incorporated, and an LED 275 is connected via a wiring 277. Supply power to In the lens according to the twenty-third modification, the cover 271 protects the wiring 277 connecting the power supply 269 and the LED 275.

As described above, the lenses according to the twenty-first to twenty-third modified examples can shoot while irradiating a subject with light, and thus are suitable for performing close-up photography where the amount of light tends to be insufficient.

(24th modification)
The lens according to the twenty-fourth modification is attached to a display section of an information terminal such as a mobile phone, a notebook PC or a PDA (including an electronic organizer), or a display section of a handy camera such as an instant camera or a digital camera. It is designed to be attached by force. Hereinafter, a twenty-fourth modified example will be described with reference to FIGS. FIG. 40 shows an example of mounting a lens according to a twenty-fourth modification, FIG. 41 shows an example of the configuration of a lens according to a twenty-fourth modification, and FIGS. 42 and 43 show a part of the lens in an enlarged scale. An example of the configuration is shown.

For example, as shown in FIG. 40, a hand-held camera 13 such as a digital camera includes a shutter button 151, buttons 153 for setting operations such as shooting and playback, a display unit 155, and the like. A projection 157 is provided on the outer periphery of the display unit 155 to prevent the display unit 155 from colliding with any object. The lens 22 according to the twenty-fourth modification is attached to the projection 157 of the camera 13.

The lens 22 is made of a material having transparency so as to allow light to pass therethrough, and is formed in substantially the same shape / size as the projection 157 of the camera 13. The lens 22 is coated with a transparent adhesive or a transparent adhesive member at a position corresponding to the projection 157 so that the lens 22 can be attached to the projection 157 of the camera 13. Note that the lens 22 should be formed to have a certain degree of hardness (for example, a degree of bending slightly when the end is pinched) so that the lens 22 can be easily attached to the projection 157 of the camera 13. preferable.

The lens 22 is formed, for example, as an aggregate of sheet-like lenses including a plurality of sections 22-1, as shown in FIG. The section 22-1 is formed as an aggregate of linear Fresnel lenses or cross linear Fresnel lenses.

In the linear Fresnel lens, a refraction portion for refracting light is arranged in a band shape. As shown in the perspective view of FIG. 42 (a) and the side view of FIG. 42 (b), the structure is such that a region parallel to the back surface of the lens is formed at the center portion and deviates from the center. A refraction portion for refracting light at a predetermined interval is formed in a belt-like shape at a predetermined portion. The linear Fresnel lens provided with the belt-shaped refraction portions parallel to the left and right guides light as shown by arrows in FIG. That is, the linear Fresnel lens makes the light that has entered the central part of the lens go straight, and the light that has entered the part deviating from the center of the lens is parallel to the left and right, and the light that has entered the central part of the lens. Refract so that they intersect at approximately the same point.

In the cross linear Fresnel lens, refraction portions for refracting light are arranged in a lattice shape. In the structure, as shown in FIG. 43, two linear Fresnel lenses 22-1a and a linear Fresnel lens 22-1b joined back to back are shifted in phase by 90 °.

A linear Fresnel lens or cross linear Fresnel lens has the following characteristics. That is, the lens 22 can be formed in a sheet shape. Further, the enlargement ratios of the central portion and the off-center portion can be made substantially the same. However, with a single linear Fresnel lens or cross linear Fresnel lens, if the focal length to the object to be enlarged is short, the diameter of the lens will be small, and a lens with a desired area may be formed. Can not. Therefore, in a twenty-fourth modification, each section 22-1 is formed by a plurality of square or rectangular linear Fresnel lenses or cross linear Fresnel lenses having a small diameter, and the sections 22-1 are connected in a grid or grid shape. The lens 22 having a desired area is formed by the combination. In this manner, the lens 22 is formed as a lens having a large area and a short focal length to an object.

One linear Fresnel lens or cross linear Fresnel lens forms each section 22-1. The sections 22-1 are arranged vertically and horizontally to form the lens 22. The arrangement of the sections 22-1 may be in the same direction, or the phases of adjacent sections 22-1 may be shifted by 90 °. The lens 22 according to the twenty-fourth modification example thus formed can solve the following problems existing in the lens attached to the conventional display unit.

That is, the structure of the conventional lens attached to the display unit is complicated because it is attached using a special adapter or screw. Further, when the lens is a convex lens, a certain thickness or more is required, and when the device (for example, a mobile phone or a notebook PC) is a foldable type, the device cannot be folded, so that it is attached to the display unit. I can't. Further, in a single focus lens (that is, a lens that focuses on one point in the center of the lens), the central portion of the screen is greatly enlarged, and the enlargement ratio is small in a portion off the center, so that the size of the character becomes uneven. . The lens 22 according to the twenty-fourth modification can solve such a problem. That is, it can be attached to the display unit with a simple structure using an adhesive or an adhesive member. Further, since the device can be formed in a sheet shape, the device can be folded even when it is attached to the display unit of the foldable device. Further, since the enlargement ratio of the center part of the screen and the part deviated from the center can be made substantially the same, the size of the characters can be made substantially uniform.

Since the lens 22 is attached to the projection 157 of the camera 13, it is attached away from the display 155 of the camera. Therefore, the display unit 155 can be protected from colliding with any object.

レ ン ズ The lens 22 is formed as an aggregate of a plurality of sections 22-1. Therefore, the lens 22 can be formed in accordance with the display size such as the number of pixels and the number of characters of the display unit, so that an optimum enlarged display can be performed.

The lens 22 may be formed as a lens having no power.

<Hole shape>
The hole 201 formed in the lens shown in FIGS. 22 and 25 to 33 can be deformed as shown in FIG. FIG. 44 is a diagram showing another example of the shape of the hole, and shows an example in which the hole 201 is transformed into a hook-shaped hole 201a.

FIGS. 22 and 25 to 33 show an example in which the string 203 is inserted into the hole 201 from one end of the string 203, but in FIG. 44, the string 203 is pushed from the opening of the hook. An example is shown. The present invention includes such a configuration.

<Joining force of mounting means>
The joining force of the mounting means will be described below with reference to FIG. FIG. 45 is a diagram showing the relationship between the joining means. The term "joining force" as used herein is a general term for the adhesive force in the first embodiment and the attraction force in the second embodiment.

In FIG. 45, the bonding strength of the camera side surface 49 of the adhesive member 23 is formed weaker than the lens body portion side surface 51. This allows the photographer to reliably remove the entire lens when detaching the lens from the photographing unit of the camera. That is, it is possible to eliminate the case where only the lens body 21 is removed and the adhesive member 23 is not left in the photographing unit of the camera.

<Structure of storage case>
The storage case for storing and carrying the lens according to the present invention will be described below with reference to FIGS. FIG. 46 is a diagram showing first and second configuration examples of the storage case. FIG. 46 (a) shows the first configuration example, and FIG. 46 (b) shows the second configuration example. I have. FIG. 47 is a diagram showing a third configuration example of the storage case. FIG. 47 (a) shows a state immediately before storing the lens body 21, and FIG. 47 (b) shows a state where the lens body 21 is stored. The latter state is shown. FIG. 48 is a development view of the storage case according to the third configuration example.

収納 The storage case 53 according to the first configuration example includes a plate 55 and an upper lid 57 as shown in FIG. The plate 55 has regions for temporarily fixing the lens body 21, and the type of the temporarily fixed lens body 21 is displayed in each region by printing or the like. The type of lens displayed on the plate 55 is not limited to magnification, but may be a focal length, a company name, a branch name, a lens color, or the like. Although the plate 55 shown in FIG. 46A has a region in which a plurality of lens body portions 21 can be temporarily fixed, a configuration including only one region is also possible.

収納 The storage case 59 according to the second configuration example is composed of a lower lid 61 and an upper lid 63 as shown in FIG. After being temporarily fixed to the mount 65, the lens body 21 is housed in the lower lid 61 together with the mount 65, and is sealed by fitting the upper lid 63 to the lower lid 61. The surface of the mount 65 is coated with an organic compound such as silicon or wax. The backing paper 65 is not limited to paper but may be made of synthetic resin such as vinyl.

As shown in FIG. 47, the storage case 67 according to the third configuration example stores the mount 65 on which the lens body 21 is temporarily fixed by attachment means such as the adhesive member 23 and the suction cup 29. As shown in FIG. 47A, the storage case 67 has upper lids 69 and 71 opened. The mount 65 on which the lens body 21 is temporarily fastened is inserted in the direction of the arrow. Then, as shown in FIG. 47 (b), the upper lids 69 and 71 are closed, whereby the storage of the lens is completed.

Hereinafter, a configuration in which the storage case 67 is expanded will be described with reference to FIG. The storage case 67 is separated from the first part 75 and the second part 77 by a broken line 73, and the second part 77 is separated from a third part 81 by a broken line 79. The third part 81 is separated from the fourth part 85 by a broken line 83.

The first part 75 and the second part 77 are folded around the broken line 73 so that the ridge line 87 and the broken line 79 of the first part 75 overlap. The second part 77 and the third part 81 are folded around the broken line 79 such that the third part 81 is above the first part 75. The third part 81 and the fourth part 85 are folded around the broken line 83, and the fourth part 85 is inserted into the cut 89 provided in the first part 75.

The first part 75 is separated from the fifth part 93 by a broken line 91, and further separated from the sixth part 97 by a broken line 95. The sixth part 97 is separated from the seventh part 101 by a polygonal line 99, and the seventh part 101 is inserted into a cut 111 described later. The above-mentioned upper lid 69 includes a sixth part 97 and a seventh part 101.

{Circle around (2)} The second part 77 is separated from the eighth part 105 by the polygonal line 103, and further separated from the ninth part 109 by the polygonal line 107. The ninth part 109 becomes the above-described upper lid 71. A cut 111 is provided at the center of the broken line 107, and the above-described seventh part 101 is inserted into the cut 111.

The first part 75 is formed in an arc shape by bending along the broken lines 91 and 95. Similarly, the second part 77 is also formed in an arc shape by bending along the broken lines 103 and 107. The first part 75 and the second part 77 are shown in FIG. 47B by inserting the fourth part 85 into the notch 89 and by inserting the seventh part 101 into the notch 111. The shape shown will be maintained.

<Modification of storage case>
(First to fourth modified examples)
The storage cases according to the first to fourth modified examples are such that a string can be attached to the storage case. The storage case according to the first to fourth modified examples is such that when the camera is, for example, a device to which a strap is attached (for example, a mobile phone or a handy-type camera), the strap of the strap is passed along with the camera. Can be carried around. Therefore, the storage cases according to the first to fourth modified examples can improve portability. The lenses according to the first to fourth modifications have different attachment structures and attachment positions of the string 203.

Hereinafter, first to fourth modified examples will be described with reference to FIGS. 49 to 53. FIG. 49 is a diagram showing a first modification of the storage case, FIGS. 50 and 51 are diagrams showing a second modification of the storage case, and FIG. 52 is a diagram showing a third modification of the storage case. FIG. 53 is a view showing a fourth modification of the storage case.

収納 The storage case according to the first modification is such that the storage case 59 according to the second configuration example shown in FIG. 46B is provided with a hole 204 through which the string 203 passes. The storage case 59 according to the first modified example is provided with a projection 205 having a hole 204 through which the string 203 is formed in the lower lid 61 as shown in FIG. As shown in b), the lower lid 61 is provided with a hole 204 through which the string 203 passes.

収納 The storage case according to the second modified example is composed of two lids connected by hinges, as shown in FIGS. 50 and 51. The storage case 211 according to the second modified example has a lid 213 having a square shape as shown in FIG. 50A or a lid 213 having a round shape as shown in FIG. An adhesive for temporarily fixing the lens body 21 is applied. Alternatively, in the storage case 211 according to the second modified example, as shown in FIG. 50C, the lens body 21 is temporarily fixed to one of the lids via the mount 65. Also, as shown in FIG. 51, the storage case 211 according to the second modification can be carried by passing the string 203 passed through the hole 201 provided in the lens body 21 through the hole 204. It may be. The shape of the storage case 211 is not limited to a square or a circle as long as the lens body 21 can be stored. For example, it is also possible to make the shape of some character.

The space between the two lids of the storage case 211 is such that the lens body 21 is lightly pressed so that the lens body 21 can be fixed (to the extent that the lens body 21 is not deformed). Is preferred. Further, it is preferable that the lens temporary fixing portion 213 (or the mount 65 to be stuck thereon) have a cushioning property so that the lens main body 21 is not deformed even when pressure is applied to the lens main body 21.

The storage cases 59 and 211 are suitable for storing the lens body 21 in units of one.

収納 The storage case according to the third modification is formed in a shape capable of storing the mount 65 to which the plurality of lens body portions 21 are attached. As shown in FIG. 52, the storage case 215 stores a mount 65 on which a plurality of lens body portions 21 are temporarily fastened by attachment means such as an adhesive member or a suction member (for example, a suction cup or a magnet) along an arrow. Thereafter, the upper lid 217 is covered. Thereby, the lens body 21 is stored in the storage case 215.

The storage case 215 is provided with a projection 205 having a hole 204 for passing the string 203 through. For example, the strap 204 of the mobile phone passes through the hole 204, so that the mobile phone, which is a photographing machine, and the lens and the storage case can be carried at the same time.

As described above, the storage cases 59, 211, and 215 according to the first to third modifications allow the string 203 to be attached. For example, by passing the string of the strap attached to the camera, Can be carried with you. Therefore, the storage cases 59, 211, and 215 according to the first to third modifications can improve portability.

The storage case according to the fourth modification has a scale 219 for measuring the size of an object and the distance from the lens to the object, which are attached to the storage case 215 according to the third configuration example shown in FIG. Things. FIG. 53A shows the appearance of a storage case 215 according to a fourth modification in which the scale 219 is expanded, and FIG. 53B shows the appearance of the back surface thereof. FIG. 53C shows an example in which the size of the target object 221 is measured by the scale 219.

As described above, since the storage case 215 according to the fourth modification includes the scale 219, the size of the object 221 and the distance from the lens to the object 221 can be measured.

<Image processing process>
The lenses according to the fourth, fifth, eighth, and eleventh modified examples (that is, the colored lens body 21 and the filter 229, the lens body on which predetermined information is described) with reference to FIG. A process of acquiring predetermined information from an image photographed by the unit 21 and recording or transmitting the information to the outside will be described. FIG. 54 is a flowchart showing the steps of the image processing.

First, in step (hereinafter, referred to as S) 11, the information terminal 11 captures an external scene and acquires a captured image. Next, in S13, the captured image is filtered in black to obtain information on the intensity of lightness. Next, in S15, the captured image is filtered in yellow to obtain information on the intensity of yellowish color. Next, in step S17, the captured image is filtered in red to obtain information on the intensity of the red color. Next, in S19, the captured image is filtered in green to obtain information on the intensity of greenish color.

Next, in S21, it is determined whether a character or a symbol is described from the photographed image. In the case of YES, the process proceeds to S23, and in the case of NO, the process proceeds to S25. In S23, a character or a symbol appearing in the captured image is recognized using table information on the character or the symbol registered in advance, and predetermined information that the character or the symbol means is acquired.

Next, in S25, information on the intensity of the captured image and the lightness acquired in S13, information on the intensity of the yellow color acquired in S15, information on the intensity of the red color acquired in S17, and S19. The obtained information on the intensity of the green color and the predetermined information represented by the character or symbol obtained in S23 are recorded on predetermined recording means or transmitted to an external device.

In the above description, the information terminal 11 performs these steps. However, the captured image may be transmitted to a device external to the information terminal 11 and may be performed by the external device. In addition, some steps may be omitted according to the photographer's intention.

行 う By performing such an image processing step, the information terminal 11 and the device outside the information terminal 11 can obtain the history of what kind of lens was used for shooting. Therefore, for example, an image is reproduced with the color tone of the actual scene at the time of shooting, and environmental conditions at the time of shooting (strong sunshine, dusk, magnification, use of a wide-angle lens, use of a narrow-angle lens, etc.) are recognized. It becomes possible. Further, since various kinds of information can be recorded and transmitted, it is possible to provide accurate information in various services (for example, a remote medical care system using the Internet or the like).

<Appendix>
As described above, the lens according to the present invention may be a suction cup having an Ω-shaped cross section as the mounting means.

As described above, the lens according to the present invention may be a cover that covers the photographing machine as the mounting means.

As described above, in the lens according to the present invention, an elastic member may be disposed at a portion that comes into contact with the photographing machine.

As described above, the lens according to the present invention may be provided with a hole through which the string is passed or a projection having a hole.

As described above, the lens according to the present invention may be provided with a cutout in the adhesive member of the mounting means.

As described above, the lens according to the present invention may be provided with a notch in the lens body.

Also, as described above, the lens according to the present invention may be provided with a light collecting section for collecting light, and guide the collected light to the lens body. Note that the light collecting unit may be provided to face a light provided in the photographing machine. In addition, the light-collecting unit may be provided with a light-emitting unit that emits light. Then, the light collected in the light collecting section may be guided to the lens body using a prism structure, a reflection structure, or an optical fiber.

As described above, the lens according to the present invention may be provided with a light emitting unit in the lens body.

As described above, the lens according to the present invention may be attached to a transparent plate or a lens to secure the thickness.

As described above, the attachment of the lens according to the present invention may be performed by fitting the lens with a retreating portion provided in the photographing unit of the photographing machine.

As described above, the attachment of the lens according to the present invention may be performed by the biasing force of the spring or the clip.

As described above, the attachment of the lens according to the present invention may be performed by covering the photographing unit of the photographing machine with the cover in which the lens body that transmits light is incorporated.

In addition, as described above, the lens according to the present invention may be attached by removing the upper lid, replacing the lens or the filter, or allowing the photographing to be performed as it is.

収納 Further, as described above, the storage case according to the present invention may be provided with a hole through which a string is passed or a projection with a hole.

As described above, in the storage case according to the present invention, a film for temporarily fixing the lens may be formed on the inside of the lid, or a mount may be attached.

As described above, in the storage case according to the present invention, a space may be provided inside the lid such that the lens is pressed down when the lid is closed.

As described above, the storage case according to the present invention may be configured to store lenses in a plurality of units.

As described above, the storage case according to the present invention may be provided with a scale for measuring the size of the subject.

The present invention is not limited to the above embodiment, and various applications and modifications are possible without departing from the spirit of the present invention.

For example, the lens body 21 may be attached to the photographing unit 15 or the display unit 155 of the camera with a screw or the like.

FIG. 5 is a diagram illustrating an application example of the lens according to the first embodiment. It is a perspective view of the lens concerning a 1st embodiment. It is a figure showing an operation by attachment of the lens concerning the present invention. It is a figure showing a technique of changing a focus position. It is a figure showing a technique of changing an angle of view. It is a cross section of the lens concerning a 2nd embodiment. It is a cross section of the lens concerning a 3rd embodiment. FIG. 14 is a diagram illustrating a first modification of the lens according to the third embodiment. FIG. 14 is a diagram illustrating a second modification of the lens according to the third embodiment. It is a figure showing a 4th embodiment. It is a figure showing a 5th embodiment. It is a figure showing a 6th embodiment. It is a figure showing the 1st modification of a lens. It is a figure showing the 2nd and 3rd modification of a lens. It is a figure showing the 4th modification of a lens. It is a figure showing the 5th-the 7th modification of a lens. It is a figure showing the 8th modification of a lens. It is a figure showing the 8th modification of a lens. It is a figure showing the 9th modification of a lens. It is a figure showing the 9th modification of a lens. It is a figure showing the 9th modification of a lens. It is a figure showing the 10th modification of a lens. It is a figure showing the 11th modification of a lens. It is a figure showing the 12th modification of a lens. It is a figure showing the 13th modification of a lens. It is a figure showing the 13th modification of a lens. It is a figure showing the 13th modification of a lens. It is a figure showing the 14th modification of a lens. It is a figure showing the 15th modification of a lens. It is a figure showing the 15th modification of a lens. It is a figure showing the 16th modification of a lens. It is a figure showing the 17th modification of a lens. It is a figure showing an 18th modification of a lens. It is a figure showing the 19th modification of a lens. It is a figure showing the 20th modification of a lens. It is a figure showing the 21st modification of a lens. It is a figure showing the 21st modification of a lens. It is a figure showing the 22nd modification of a lens. It is a figure showing the 23rd modification of a lens. It is a figure showing the 24th modification of a lens. It is a figure showing the 24th modification of a lens. It is a figure showing the 24th modification of a lens. It is a figure showing the 24th modification of a lens. It is a figure showing other examples of shape of a hole. It is a figure which shows the relationship of joining force. It is a figure showing the 1st and 2nd example of composition of a storage case. It is a figure showing the 3rd example of composition of a storage case. It is a development view of a storage case according to a third configuration example. It is a figure which shows the 1st modification of a storage case. It is a figure which shows the 2nd modification of a storage case. It is a figure which shows the 2nd modification of a storage case. It is a figure which shows the 3rd modification of a storage case. It is a figure which shows the 4th modification of a storage case. 9 is a flowchart illustrating steps of image processing.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 11 Information terminal 13 Handy type camera 15 Imaging part 17 Lens 19 Cover 21 Lens body part 23 Adhesive member

Claims (2)

A lens body that transmits light,
A lens comprising mounting means for mounting the lens body and a photographing unit of a photographing machine by urging force. The lens according to claim 1, wherein the attachment unit is a spring, a clip, or a cover that covers the photographing device.