JP2018163240A - Imaging apparatus and lens unit for imaging apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an imaging apparatus capable of easily switching different photography.SOLUTION: The imaging apparatus includes an imaging apparatus body 10 which includes a light source 13a and a lens unit 20 which is movably provided in the imaging apparatus body 10 and includes a light guide member 22 condensing and emitting incident light and a conversion lens 21. The lens unit 20 is moved between a first position where light emitted from the light source 13a is made incident on the light guide member 22 and a second position where the light emitted from the light source 13a is not made incident on the light guide member 22, to switch a first photographing state and a second photographing state.SELECTED DRAWING: Figure 4

Description

  The present invention relates to an imaging apparatus and a lens unit for an imaging apparatus.

  In recent years, an increase in skin diseases such as melanoma (malignant melanoma) has become a problem due to aging and ozone layer destruction. For the diagnosis of such skin diseases, an imaging device called a dermoscopy camera capable of photographing the pigment distribution and color inside the skin is used.

  For example, Patent Document 1 discloses a mobile phone with a camera in which a dermoscope can be attached and detached. During dermoscopy photography, the skin diseased part is photographed with a camera-equipped mobile phone with a dermoscope attached, and during normal photography, the skin diseased part is photographed with a camera-equipped cellular phone with the dermoscope removed.

JP 2005-192944 A

  However, in the invention disclosed in Patent Document 1, it is necessary to attach and detach the dermoscope when switching between dermoscopy photography and normal photography. Also, dermoscopy shooting and normal shooting can be taken with different cameras, but the camera needs to be replaced. As described above, it is not easy to switch between different photographings.

  The present invention has been made paying attention to such problems, and an object of the present invention is to provide an imaging apparatus and a lens unit for the imaging apparatus that can easily switch between different imaging modes.

In order to achieve the above object, an imaging apparatus of the present invention provides:
An imaging device body having a light source;
A lens unit that is movably provided in the imaging device main body and has a light guide member that collects and emits incident light and a conversion lens; and
By moving the lens unit between a first position where light emitted from the light source is incident on the light guide member and a second position where light emitted from the light source is not incident on the light guide member. , Switching between the first shooting state and the second shooting state,
It is characterized by that.

  According to the present invention, different photographing can be easily switched.

It is a figure of the dermoscopy camera to which the present invention is applied, and is a perspective view of the dermoscopy camera at the time of dermoscopy shooting. It is a figure of the dermoscopy camera to which the present invention is applied, and is a perspective view of the dermoscopy camera during normal shooting. The front view of the dermoscopy camera to which the present invention is applied. FIG. 4 is an exploded cutaway view of a dermoscopy camera cut along a cutting line IV-IV in FIG. 3. The cutaway view of the dermoscopy camera at the time of dermoscopy photography. A cutaway view of a dermoscopy camera during normal shooting. It is the schematic which showed the mode of the illumination intensity distribution of the light radiate | emitted from LED, (a) is a distribution map in the irradiation surface shown in FIG. 5, (b) is a distribution map in the irradiation surface shown in FIG. The perspective view which showed other embodiment of the dermoscopy camera to which this invention is applied.

  Hereinafter, embodiments of a dermoscopy camera to which the present invention is applied will be described with reference to the drawings. In this specification, “Dermoscope” and “Dermoscopy” are used in accordance with the proper use of “Microscope: Microscope” and “Microscopy: Inspection by microscope or using microscope (method)”. The term ")" is used to mean a skin examination magnifier (apparatus) and skin examination using the magnifier or use (action) of the magnifier.

(Overall configuration of dermoscopy camera 1)
FIG. 1 is a diagram of a dermoscopy camera to which the present invention is applied, and is a perspective view of the dermoscopy camera at the time of dermoscopy shooting. FIG. 2 is a diagram of a dermoscopy camera to which the present invention is applied, and is a perspective view of the dermoscopy camera during normal shooting. FIG. 3 is a front view of a dermoscopy camera to which the present invention is applied. FIG. 4 is an exploded cutaway view of the dermoscopy camera cut along cutting line IV-IV in FIG. As shown in FIGS. 1 to 4, the dermoscopy camera 1 is schematically configured by a camera main body (imaging device main body) 10 and a lens unit 20 rotatably attached to the camera main body 10.

  In the following description, as shown in FIG. 1, the imaging target side is the front (front, front) of the dermoscopy camera 1, the opposite side is the rear, and the up, down, left, and right directions when the dermoscopy camera 1 is viewed from the front. The description will be made based on an orthogonal coordinate system in the vertical and horizontal directions as it is. Further, the attachment of each member may be performed by an appropriate method such as attachment using screws, screws or the like or attachment such as fitting unless otherwise specified.

  As shown in FIG. 1, the dermoscopy camera 1 has a dermoscopy shooting state (first shooting state) in which the lens unit 20 is placed in front of the camera body 10 (at the first position) and dermoscopy shooting is possible. As shown in FIG. 2, the lens unit 20 is rotated upward so that the front of the camera body 10 is opened (positioned at the second position). ) And can be switched to. The normal photographing means photographing by a general camera usage method, for example, photographing the surface of a skin diseased part.

(About the configuration of the camera body 10)
The camera body 10 includes a housing 11, and a zoom lens unit 12, an LED substrate 13 on which a plurality of LEDs (Light Emitting Diodes) 13 a as light sources are mounted, a light diffusion plate 14, a circuit, and the like. Various components such as the wiring board 30 and the image sensor 31 are accommodated. The housing 11 is provided with a shutter button 18 (FIG. 3) on the top surface and a power button 17 on the right surface.

  Furthermore, in the housing 11, a storage unit that stores a captured image read by the image sensor 31 according to an operation of the shutter button 18, a control unit that controls each unit described above, and a power source for each unit described above. The battery unit to be supplied is provided, but illustration of these is omitted.

  The camera body 10 can employ a configuration of a well-known photographing apparatus used for normal photographing, for example, a commercially available digital camera. For example, the zoom lens unit 12, the circuit wiring board 30, and the imaging element 31 include Well-known parts can be used. The zoom lens unit 12 has a known optical lens. Further, as the imaging element 31, a CCD (Charge Coupled Device) image sensor or a CMOS (Complementary Metal Oxide Semiconductor) image sensor can be used. The camera body 10 is provided with a touch panel screen (not shown) for displaying captured images and for executing various settings of the dermoscopy camera 1.

  The housing 11 is formed with a substrate housing portion 11 a formed of an annular recess so as to surround the zoom lens portion 12. The LED substrate 13 on which the LED 13a is mounted is accommodated in the substrate accommodating portion 11a. Further, a light diffusing plate 14 as a light diffusing portion is placed on the housing 11 so as to cover the front of the LED substrate 13.

  The LED substrate 13 has an annular shape, and eight LEDs 13a are mounted on the front surface thereof. As shown in FIG. 3, the eight LEDs 13 a are arranged at equal intervals on a concentric circle with respect to the center of the LED substrate 13. Thereby, the LED substrate 13 on which the LED 13a is mounted functions as a ring flash that emits light forward from the outer peripheral position of the zoom lens unit 12. LED13a is comprised from LED which emits white light.

  The light diffusing plate 14 is made of, for example, a synthetic resin having translucency, and has minute irregularities formed on the surface thereof. The light diffusing plate 14 passes the light emitted from the LED 13a and emits it forward as diffused light.

  A rotation support portion 19 that rotatably supports the lens unit 20 is formed on the upper portion of the camera body 10. Rotation protrusions (not shown) serving as the rotation axis of the lens unit 20 are formed on the left and right surfaces of the rotation support portion 19, respectively. The rotation unit 25 of the lens unit 20 is pivotally supported by the rotation protrusion (not shown), so that the lens unit 20 can rotate about the rotation axis R.

  As shown in FIG. 2, two engagement convex portions 15 projecting forward are formed on the annular edge portion of the housing 11, and the magnetic body 16 is attached at two locations. . When the dermoscopy camera 1 is in the dermoscopy photographing state (FIG. 1), the engaging convex portion 15 engages with an engaging concave portion 20 a formed at the edge of the lens unit 20. Thereby, the camera main body 10 and the lens unit 20 can be made into a predetermined positional relationship. Further, by adsorbing the magnetic body 16 provided in the camera body 10 and the magnetic body 26 provided in the lens unit 20 to each other, the state in which the lens unit 20 is in contact with the camera body 10 can be maintained.

(Regarding the configuration of the lens unit 20)
The lens unit 20 has a cylindrical cover body 40 with the tip of the cone cut off, and a cylindrical body with the tip of the cone cut like the cover body 40 attached to the tip of the cover body 40. 4, the conversion lens 21 and the light guide plate 22 attached to the cover body 40, the polarizing filter 23 and the cover lens 24 attached to the tip cover body 41, as shown in FIG. 4. Have. The lens unit 20 functions as a dermoscope for enlarging the skin disease part.

  The cover body 40 is made of, for example, a resin such as a polyvinyl chloride derivative or an acrylic resin. The outer shape of the cover body 40 has a tapered shape toward the front, and the inside is hollow. Moreover, the hollow part of the cover body 40 also has a shape that has a diameter reduced toward the front.

  The conversion lens 21 is a double-sided convex lens, and is interposed between the zoom lens unit 12 and the skin diseased part of the camera body 10 and increases the magnification of the captured image. Specifically, a lens capable of enlarging the diseased part of the patient 10 to 30 times in combination with the magnification of the zoom lens unit 12 is employed. The conversion lens 21 is attached to the inner peripheral surface of the cover body 40 via a support portion (not shown).

  As shown in FIG. 4, the light guide plate 22 has a light guide plate main body 22b for guiding incident light, a reflection film 22a formed on the inner peripheral surface of the light guide plate main body 22b, and an outer peripheral surface of the light guide plate main body 22b. And the formed reflection film 22c. The light guide plate 22 has a hollow shape with a reduced diameter toward the front. The light guide plate 22 is attached to the inner peripheral surface of the cover body 40 in a state where the outer peripheral surface thereof is in close contact. The light guide plate body 22b is made of a synthetic resin having translucency such as acrylic. The rear end face of the light guide plate body 22b forms a light incident surface 22d. The light incident surface 22d is a surface that is arranged in front of the LED 13a and receives light emitted from the LED 13a in the dermoscopy photographing state. On the other hand, the front end surface of the light guide plate body 22b forms a light exit surface 22e. The light emission surface 22e is a surface from which the light guided to the light guide plate body 22b is emitted to the outside. The reflective film 22a and the reflective film 22c are metal films such as aluminum, for example, and prevent light guided from the surface of the light guide plate body 22b from leaking to the outside. Thereby, the light incident from the light incident surface 22d can be emitted from the light emitting surface 22e without weakening.

  The tip cover body 41 is made of, for example, a resin such as a polyvinyl chloride derivative or an acrylic resin. The tip cover body 41 is a cylindrical body, and a plurality of hooking portions 41a, which are concave portions for the photographer to hook a finger, are formed on the outer peripheral surface. The photographer can attach the tip cover body 41 to the tip of the cover body 40 by, for example, screwing the tip cover body 41 into the cover body 40. Thus, the tip cover body 41 and the cover body 40 are configured to be detachable by a known method such as screwing or fitting. An opening 41 b for fitting the cover lens 24 is formed at the tip of the tip cover body 41.

  The polarizing filter 23 is provided in the hollow portion of the tip cover body 41. When the tip cover body 41 is attached to the cover body 40, the polarizing filter 23 is disposed in front of the light guide plate 22. The polarizing filter 23 is polarized when passing the light emitted from the light emitting surface 22e of the light guide plate 22. The polarized light is reflected by the substance under the skin while suppressing irregular reflection on the skin surface.

  The cover lens 24 is fitted into an opening 41 b formed at the tip of the tip cover body 41. The cover lens 24 is made of a transparent synthetic resin, allows light emitted from the polarizing filter 23 to pass forward, and causes reflected light to enter the dermoscopy camera 1. Further, the cover lens 24 protects the inside of the lens unit 20 from moisture and dust. At the time of dermoscopy photography, the cover lens 24 is brought into contact with the skin diseased part.

(Progress of LED light during dermoscopy photography)
FIG. 5 is a sectional view of the dermoscopy camera at the time of dermoscopy shooting. The light emitted from the LED 13a passes through the light diffusion plate 14 and enters the light guide plate main body 22b from the light incident surface 22d (FIG. 4). The light incident on the light guide plate main body 22b is guided within the light guide plate main body 22b while being reflected by the reflective film 22a and the reflective film 22c, as indicated by arrows L1 and L2. The light guided thereby is condensed at the center of the lens unit 20 toward the tip. Eventually, the light guided inside the light guide plate main body 22b is emitted from the light exit surface 22e and passes through the polarizing filter 23 as indicated by an arrow L3. The light polarized by the polarizing filter 23 is emitted forward through the cover lens 24 as indicated by an arrow L4.

(Progress of LED light during normal shooting)
FIG. 6 is a cross-sectional view of the dermoscopy camera during normal shooting. The light emitted from the LED 13a passes through the light diffusion plate 14 and is emitted forward as diffused light as indicated by an arrow L5. The LEDs 13 a that emit such light are arranged at equal intervals on the circumference provided outside the zoom lens unit 12, and are arranged in substantially the same plane as the zoom lens unit 12.

(About illuminance distribution of LED light)
Next, the illuminance distribution of the light emitted from the LED 13a of the dermoscopy camera 1 will be described. 7A and 7B are schematic diagrams showing the illuminance distribution of the light emitted from the LED, where FIG. 7A is a distribution diagram on the irradiation surface shown in FIG. 5, and FIG. 7B is a distribution diagram on the irradiation surface shown in FIG. It is. Here, the irradiation surface 51 shown in FIG. 5 corresponds to the surface position of the skin diseased part at the time of dermoscopy photography. Moreover, the irradiation surface 52 shown in FIG. 6 is equivalent to the surface position of the skin disease part at the time of normal imaging | photography. The irradiation surface 52 is, for example, at a position separated from the dermoscopy camera 1 by 1 meter. In each figure of FIG. 7, the region with higher illuminance is painted with a color closer to white.

  As described above, at the time of dermoscopy shooting, the light emitted from the LED 13a is guided toward the center of the cover body 40 toward the tip. Therefore, the light emitted from the cover lens 24 is a strong light obtained by condensing the light from the LED 13a. Further, at the time of dermoscopy photography, the cover lens 24 is in contact with the skin diseased part. Therefore, as shown in FIG. 7A, an irradiation region 51a where light is strongly irradiated is formed on the irradiation surface 51 corresponding to the surface of the skin diseased part, and a non-irradiation region 51b where no light is irradiated is formed outside the irradiation region 51a. Is done. The size of the irradiation region 51a is approximately the same as the size of the cover lens 24 (FIG. 5). In this way, during dermoscopy photography, strong light collected by the light guide plate 22 can be irradiated to the skin diseased part. Therefore, light can be irradiated and reflected on the substance under the skin, and a dermoscopy image can be taken.

  On the other hand, during normal photographing, as shown in FIG. 6, the light from the LEDs 13a provided at equal intervals on the concentric circle is diffused by the light diffusion plate 14 and emitted forward. As a result, the irradiation range of the light reaching the irradiation surface 52 is wider than that during dermoscopy shooting, while the intensity of the irradiation light is weakened. For example, during normal photographing, as shown in FIG. 7B, the irradiation surface 52 has an area larger than the irradiation area 51a but lower illuminance, and an area larger than the irradiation area 52a and larger illuminance. A low irradiation region 52b, an irradiation region 52c having a larger area and lower illuminance than the irradiation region 52b, and a non-irradiation region 52d that is not irradiated with light are formed outside thereof. For this reason, during normal photographing, light can be irradiated over a wide area centering on the skin diseased part. Moreover, since it is possible to shoot with illumination with lower illuminance than during dermoscopy shooting during normal shooting, it is possible to normally shoot a wide range including a skin diseased part.

(Usage example of dermoscopy camera 1)
When performing dermoscopy shooting using the dermoscopy camera 1, the photographer rotates the lens unit 20 and moves it to the first position where the lens unit 20 is in contact with the camera body 10, as shown in FIG. . At that time, the engaging protrusion (FIG. 2) formed on the camera body 10 is inserted into the engaging recess 20a formed on the lens unit 20, and the magnetic body 16 of the camera body 10 and the magnetic body 26 of the lens unit 20 are inserted. And adsorb. Thereby, the dermoscopy photographing state in which the front of the camera body 10 is covered with the lens unit can be maintained. Then, the photographer presses the power button 17 to turn on the power and, for example, presses the shutter button 18 halfway to cause the LED 13a to emit light. Then, the cover lens 24 is brought into contact with the skin disease part. As a result, the light polarized by the polarizing filter 23 and emitted from the cover lens 24 reaches under the skin while suppressing irregular reflection on the surface of the skin diseased part, and is reflected by the substance under the skin. This reflected light is taken into the dermoscopy camera 1 through the cover lens 24 and the polarizing filter 23. The taken-in light is magnified 10 to 30 times through the conversion lens 21 and the zoom lens unit 12, and forms an image on the image sensor 31 of the camera body 10. When the shutter button 18 of the camera body 10 is fully pressed at an arbitrary timing, the captured image read by the image sensor 31 is stored in the storage unit of the camera body 10. The captured image stored in this way can be used, for example, for examination and diagnosis of pigment cell nevus, malignant melanoma, seborrheic keratosis, basal cell carcinoma, vascular lesion, Bowen's disease, and the like.

  Subsequently, when performing normal shooting using the dermoscopy camera 1, the photographer rotates the lens unit 20 upward. Then, as shown in FIG. 2, the lens unit 20 is moved from the front of the camera body 10 and is disposed at the second position where the front of the camera body 10 is opened. Then, the photographer points the zoom lens unit 12 toward the skin diseased part at a predetermined distance from the skin diseased part. Subsequently, the photographer causes the LED 13a to emit light by, for example, pressing the shutter button 18 halfway. The light emitted from the LED 13a becomes diffused light and irradiates a wide range centering on the skin diseased part. The irradiated light is reflected on the surface of the skin diseased part, is taken into the zoom lens unit 12 and is imaged on the image sensor 31 of the camera body 10. When the shutter button 18 of the camera body 10 is fully pressed at an arbitrary timing, the captured image read by the image sensor 31 is stored in the storage unit of the camera body 10.

(Effects of the embodiment)
As described above, in the dermoscopy camera 1 to which the present invention is applied, dermoscopy shooting can be performed with the front surface of the camera body 10 covered with the lens unit 20, and normal shooting is performed with the front surface of the camera body opened. Can do. Then, switching between dermoscopy shooting and normal shooting can be realized only by rotating the lens unit 20 attached to the camera body 10 so as to be rotatable. Thereby, the dermoscopy camera 1 can easily switch between dermoscopy shooting and normal shooting.

  In addition, by arranging the LEDs 13a at equal intervals on the outer circumference of the zoom lens unit 12, light can be irradiated over a wide range centering on the skin diseased part during normal imaging. Further, by installing the light diffusion plate 14 in front of the LED 13a, it is possible to irradiate light over a wide range during normal photographing. Thereby, the image of the wide range including the circumference | surroundings of a skin disease part can be image | photographed at the time of normal imaging | photography.

  In addition, a light guide plate 22 that guides and collects the light emitted from the LED 13 a during dermoscopy photography is provided inside the lens unit 20. The light guide plate 22 can emit light emitted from the LED 13a from the dermoscopy camera 1 without weakening the light. Thereby, a clear dermoscopy image can be obtained.

  Further, by forming the reflection films 22a and 22c on the outer peripheral surface and the inner peripheral surface of the light guide plate 22, it is possible to prevent light from leaking to the outside when the light guide plate 22 guides light. Thereby, strong light can be emitted from the dermoscopy camera 1 without weakening the light to be guided at the time of dermoscopy photographing.

  In addition, by making the shape of the light guide plate 22 tapered toward the front, the light incident on the light guide plate 22 can be condensed toward the tip. Thereby, sufficient light required for dermoscopy photography can be emitted from the dermoscopy camera 1.

  Further, by providing the light guide plate 22 in the lens unit 20, it is possible to realize light irradiation at the time of normal photographing and dermoscopy photographing by the common LED 13a. Thereby, it is not necessary to provide a plurality of types of light sources for different shooting, and the configuration of the dermoscopy camera 1 can be simplified.

  In the lens unit 20, the tip cover body 41 is detachable from the cover body 40. At the time of dermoscopy photographing, the cover lens 24 is used in a state of being in contact with the skin diseased part, but when photographing is completed, the tip cover body 41 to which the cover lens 24 is attached can be removed and cleaned. Thereby, the cleaning operation after dermoscopy photography can be facilitated. In addition, by preparing a plurality of tip cover bodies 41, the tip cover body 41 can be exchanged and another patient can be photographed, and the examination time can be shortened.

(About other forms)
The present invention is not limited to the above embodiment, and various modifications and applications are possible. In the above-described embodiment, the mode in which the dermoscopy shooting and the normal shooting are switched by rotating the lens unit 20 with respect to the camera body 10 has been described. The movement mode of the lens unit 20 is not limited to such rotation, but may be a mode in which the lens unit 20 is slid with respect to the camera body 10, for example. When performing dermoscopy shooting, the front of the zoom lens unit 12 is disposed so as to be covered with the lens unit 20, and during normal shooting, the lens unit 20 may be slid and moved from the front of the zoom lens unit 12.

  In addition, in the case of dermoscopy photographing, when the gel having polarization action is applied to the skin diseased part and photographed, the polarizing filter 23 provided on the tip cover body 41 can be omitted. Note that by preparing the tip cover body 41 having the polarization filter 23 and the tip cover body 41 not having the polarization filter 23, it is possible to select the shooting correspondence at the time of dermoscopy shooting according to the situation.

  Moreover, although the said embodiment demonstrated that the light source was LED13a distribute | arranged on the circumference, you may employ | adopt another light source. For example, a high-intensity light such as a halogen lamp, a semiconductor light-emitting element, and a light-emitting element such as organic electroluminescence can be used.

  Moreover, although LED13a demonstrated having comprised LED which emits white light, you may employ | adopt an ultraviolet light source, a blue light source, or a green light source, for example. Alternatively, light sources having different light colors may be provided so that light sources of different colors can emit light independently. In this way, different images can be obtained by irradiating light of different colors to obtain captured images, and by comparing different images or by superimposing images, Diagnosis can be facilitated.

  Moreover, in the said embodiment, although the light diffusing plate 14 was installed in front of LED13a, the light diffusing plate 14 is abbreviate | omitted by employ | adopting the light source which can irradiate light to an irradiation surface (FIG. 6) at the time of normal imaging | photography. May be. Moreover, you may install the transparent plate which permeate | transmits the incident light as it is instead of the light diffusing plate 14. FIG.

  Further, it has been described that the cover lens 24 is brought into contact with the skin diseased part during dermoscopy photography. However, if it is possible to irradiate light with sufficient illuminance, dermoscopy photography can be performed by bringing the cover lens 24 close to the skin diseased part. In this case, the cleaning operation after dermoscopy photography is unnecessary, and the examination time can be shortened.

  Moreover, although the conversion lens 21 was demonstrated as one double-sided convex lens, the thing of another form is also employable. For example, the conversion lens 21 may be any one of a combination of two or more convex lenses, one achromatic lens, and two or more achromatic lenses. The conversion lens 21 may be an aberration lens, or may be a spherical lens in which an aspheric lens is incorporated. Further, these lenses may include an antireflection film and a color filter.

  The lens unit 20 is provided with a light guide plate 22 as a light guide member that condenses the light from the LED 13a toward the tip. However, instead of the light guide plate 22, another known light guide member is provided. Also good. For example, an optical fiber that guides light toward the tip may be provided.

  Further, the imaging apparatus according to the present invention is not limited to an imaging apparatus capable of switching between the dermoscopy shooting state and the normal shooting state, like the dermoscopy camera 1 described in the above embodiment. Further, the subject is not limited to the skin disease part. For example, a shooting state (a state in which the lens unit is positioned in front of the camera body) in which the inside of a hole formed in a structure or the like is irradiated with light and the inside of the hole irradiated with light is enlarged and shot, The present invention can also be applied to an imaging device or the like that can switch between a shooting state (a state in which the lens unit is opened in front of the camera body) that captures a range including the periphery of the hole from a position separated from the hole. it can.

  In the dermoscopy camera 1 described above, it has been described that the camera body 10 is provided with the shutter button 18 and a touch panel screen (not shown) for executing various settings of the dermoscopy camera 1. However, an operation receiving unit such as the shutter button 18 or a touch panel screen (not shown) may be provided in an operation unit physically separated from the camera body. The camera body and the operation unit can communicate bidirectionally using existing communication technology. The photographer can perform various settings of the camera body, shutter operation, and the like by operating the operation unit.

  In the dermoscopy camera 1 described above, the lens unit 20 is described as being pivotably attached to the camera body 10, but the lens unit may be detachable from the camera body. FIG. 8 is a perspective view showing another embodiment of a dermoscopy camera to which the present invention is applied. The dermoscopy camera 100 does not have the rotation support part 19 and the rotation part 25 (both see FIG. 1) for supporting the lens unit 120 in a rotatable manner. On the other hand, the dermoscopy camera 100 has a mounting ring 160 formed with a recess 160a for a photographer to hook his / her finger when the lens unit 120 is attached to or detached from the camera body 110. About another structure, it is the same as that of the structure of the dermoscopy camera 1 demonstrated in the said embodiment. Therefore, in FIG. 8, the same code | symbol is attached | subjected about the same structure.

  During normal photographing, the skin diseased part is photographed by the camera body 110 with the lens unit 120 removed. On the other hand, at the time of dermoscopy shooting, the photographer screws and attaches the lens unit 120 to the camera body 110. The lens unit 120 and the camera body 110 are configured to be detachable by a known method such as screwing or fitting. Then, dermoscopy shooting can be performed by the dermoscopy camera 100 to which the lens unit 120 is attached. As described above, the lens unit 120 can be attached to and detached from the camera body 110 to switch between the normal shooting state and the dermoscopy shooting state. The effects at the time of normal shooting and dermoscopy shooting are the same as in the above embodiment.

  Similarly to the lens unit 20 of the above-described embodiment, the lens unit 120 guides light emitted from a light source (not shown) provided in the camera body 110 with a light guide plate (not shown), and is necessary for dermoscopy photography. Irradiate light. Therefore, it is not necessary to provide a light source in the lens unit 120, and the configuration of the lens unit 120 can be simplified.

  In addition, specific details such as the configuration shown in the above embodiment can be changed as appropriate without departing from the spirit of the present invention.

  Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof. The invention described in the scope of claims attached to the application of this application will be added below. The numbers in the appendix are as set out in the claims attached to the application for this application.

(Appendix 1)
An imaging device body having a light source;
A lens unit that is movably provided in the imaging device main body and has a light guide member that collects and emits incident light and a conversion lens; and
By moving the lens unit between a first position where light emitted from the light source is incident on the light guide member and a second position where light emitted from the light source is not incident on the light guide member. , Switching between the first shooting state and the second shooting state,
An imaging apparatus characterized by that.
(Appendix 2)
The lens unit is rotatably attached to the imaging device body,
The first position is a position where the lens unit covers the front surface of the imaging device main body,
The second position is a position where the lens unit is rotated from the first position and separated from the front surface of the imaging device main body.
The imaging apparatus according to Supplementary Note 1, wherein

(Appendix 3)
A plurality of the light sources are provided around an optical lens provided in the imaging apparatus body.
The imaging apparatus according to appendix 1 or 2, characterized in that:

(Appendix 4)
The first shooting state is a dermoscopy shooting state,
The second shooting state is a normal shooting state.
The imaging apparatus according to any one of supplementary notes 1 to 3, wherein:

(Appendix 5)
The light guide member has a tapered shape, is attached so as to cover the inner peripheral surface of the lens unit, and guides the incident light toward the tip, thereby emitting the condensed light. ,
The imaging apparatus according to any one of appendices 1 to 4, wherein the imaging apparatus is characterized in that

(Appendix 6)
The imaging apparatus main body has a light diffusing unit that diffuses light from the light source.
The imaging apparatus according to any one of appendices 1 to 5, wherein the imaging apparatus is characterized in that

(Appendix 7)
An operation receiving unit that receives an operation; and an operation unit that sends an instruction to the imaging apparatus main body based on the received operation;
The operation unit is physically separated from the imaging device body.
The imaging apparatus according to any one of supplementary notes 1 to 6, wherein:

(Appendix 8)
An imaging device lens unit that is detachable from an imaging device body having a light source,
A light guide member that collects and emits incident light, and a conversion lens,
When attached to the imaging device body, the light emitted from the light source is incident on the light guide member, and the light necessary for photographing through the conversion lens is irradiated toward the subject.
A lens unit for an image pickup apparatus.

1,100 ... Dermoscopy camera 10, 110 ... Camera body, 11 ... Housing, 11a ... Housing, 12 ... Zoom lens section, 13 ... LED substrate, 13a ... LED, 14 ... Light Diffuser 15 .. Engaging convex part 16, 26 .. Magnetic body 17.. Power button 18. Shutter button 19.. Rotation support part 20, 120 Lens unit 20 a Engaging recess, 21... Conversion lens, 22.. Light guide plate, 22 a, 22 c .. reflective film, 22 b .. light guide plate body, 22 d .. light incident surface, 22 e. , 24 .. cover lens, 25.. Rotating part, 30 .. circuit wiring board, 31 .. imaging element, 40 .. cover body, 41 .. tip cover body, 41 a. Aperture, 51, 52 .. Irradiation surface, 51 , 52a, 52b, 52c ·· irradiation region, 51b, 52d ·· non-illuminated region

Claims (8)

An imaging device body having a light source;
A lens unit that is movably provided in the imaging device main body and has a light guide member that collects and emits incident light and a conversion lens; and
By moving the lens unit between a first position where light emitted from the light source is incident on the light guide member and a second position where light emitted from the light source is not incident on the light guide member. , Switching between the first shooting state and the second shooting state,
An imaging apparatus characterized by that. The lens unit is rotatably attached to the imaging device body,
The first position is a position where the lens unit covers the front surface of the imaging device main body,
The second position is a position where the lens unit is rotated from the first position and separated from the front surface of the imaging device main body.
The imaging apparatus according to claim 1. A plurality of the light sources are provided around an optical lens provided in the imaging apparatus body.
The imaging apparatus according to claim 1 or 2, wherein The first shooting state is a dermoscopy shooting state,
The second shooting state is a normal shooting state.
The imaging apparatus according to any one of claims 1 to 3, wherein The light guide member has a tapered shape, is attached so as to cover the inner peripheral surface of the lens unit, and guides the incident light toward the tip, thereby emitting the condensed light. ,
The image pickup apparatus according to claim 1, wherein the image pickup apparatus is an image pickup apparatus. The imaging apparatus main body has a light diffusing unit that diffuses light from the light source.
The imaging apparatus according to any one of claims 1 to 5, wherein An operation receiving unit that receives an operation; and an operation unit that sends an instruction to the imaging apparatus main body based on the received operation;
The operation unit is physically separated from the imaging device body.
The image pickup apparatus according to claim 1, wherein the image pickup apparatus is an image pickup apparatus. An imaging device lens unit that is detachable from an imaging device body having a light source,
A light guide member that collects and emits incident light, and a conversion lens,
When attached to the imaging device body, the light emitted from the light source is incident on the light guide member, and the light necessary for photographing through the conversion lens is irradiated toward the subject.
A lens unit for an image pickup apparatus.

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