Attachments and electronic equipment units

Abstract

The present invention provides an attachment that, when attached to an electronic device, enables observation of an object while appropriately illuminating it with light, and an electronic device unit to which such an attachment is attached. [Solution] The attachment 20 is detachable from an electronic magnifying glass 10 which has an illumination unit 12c for illuminating an object to be observed O with light and an imaging unit 12a for imaging the object to be observed. The attachment 20 includes a reflective mirror 31 that reflects light from the illumination unit 12c and a half mirror 32 that reflects the light incident from the reflective mirror 31 toward the object to be observed O and transmits the light reflected by the object to be observed O. The half mirror 32 is positioned so that the light from the object to be observed O that has passed through the half mirror 32 is incident toward the camera 12a.

Description

Technical Field

[0001] The present invention relates to an attachment and an electronic device unit.

Background Art

[0002] In an electronic device such as an electronic magnifier, it is known to irradiate an observation object with light to make it easier to observe the observation object. For example, Patent Document 1 discloses an enlarged imaging device including a case, an imaging element, a planar light source, etc. In this enlarged imaging device, when imaging a reading target, uniform light is irradiated from the planar light source onto the reading target.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the enlarged imaging device disclosed in Patent Document 1 above, the light from the planar light source is side illumination that irradiates the reading target from an obliquely lateral direction. Therefore, sufficient observation could not be performed on an observation object that is suitable for coaxial epi-illumination in which light is irradiated from the same direction as the optical axis of the lens.

[0005] In view of the above points, an object of the present invention is to provide an attachment that can appropriately irradiate an observation object with light while observing by being attached to an electronic device, and an electronic device unit to which such an attachment is attached.

Means for Solving the Problems

[0006] The attachment of the present invention is a detachable attachment to an electronic device comprising an illumination unit for irradiating an object with light and an imaging unit for imaging the object, and comprises a first mirror that reflects light from the illumination unit and a second mirror that reflects the light incident from the first mirror toward the object and transmits the light reflected by the object, wherein the second mirror is positioned so that the light from the object that has passed through the second mirror is incident toward the imaging unit.

[0007] Another attachment of the present invention is a detachable attachment to an electronic device comprising: an illumination unit for illuminating an object with light; an imaging unit for imaging the object; and a connection unit electrically connected to a power supply for supplying power to the illumination unit, the attachment comprising: a light source; a third mirror that reflects the light incident from the light source toward the object and transmits the light reflected by the object; and a contact that can be electrically connected to the connection unit, wherein the third mirror is positioned so that the light from the object transmitted through the third mirror is incident toward the imaging unit, and when attached to the electronic device, the contact is electrically connected to the connection unit.

[0008] The electronic device unit of the present invention comprises the electronic device and the attachment described above. [Effects of the Invention]

[0009] According to the present invention, it is possible to provide an attachment that can be attached to an electronic device to observe an object while appropriately illuminating it with light, and an electronic device unit to which such an attachment is attached. [Brief explanation of the drawing]

[0010] [Figure 1] This is an overall perspective view of the electronic magnifying glass unit according to the first embodiment, viewed from the front. [Figure 2]This is an overall perspective view of an electronic magnifier according to the first embodiment, where (a) is a perspective view of the electronic magnifier viewed from the front, and (b) is a perspective view of the electronic magnifier viewed from the rear. [Figure 3] This is a schematic cross-sectional view showing the light propagation pattern in an electronic magnifying glass unit according to the first embodiment, and is a schematic cross-sectional view of the III-III section in Figure 1. [Figure 4] This is a schematic cross-sectional view showing the mode of light propagation in an electronic magnifying glass unit according to a modified example of the first embodiment, and is a schematic cross-sectional view showing the cross section corresponding to the III-III section in Figure 1. [Figure 5] This is an overall view of the electronic magnifying glass unit according to the second embodiment, where (a) is an overall perspective view of the electronic magnifying glass unit viewed from the front right, and (b) is a schematic side view showing the electrical connection between the electronic magnifying glass and the attachment. [Figure 6] This is a perspective view of the attachment according to the second embodiment. [Figure 7] This is a schematic cross-sectional view showing the light propagation pattern in an electronic magnifying glass unit according to the second embodiment, and is a schematic cross-sectional view of the IIV-IIV section in Figure 5(a). [Figure 8] This is an overall view of an electronic magnifying glass unit according to a modified example of the second embodiment, where (a) is an overall perspective view of the electronic magnifying glass unit as seen from the front right, and (b) is a schematic side view showing the electrical connection between the electronic magnifying glass and the attachment. [Modes for carrying out the invention]

[0011] The first embodiment of the present invention will be described below with reference to Figures 1 to 3. As shown in Figure 1, the electronic magnifying glass unit (electronic device unit) 1 according to the first embodiment consists of an electronic magnifying glass (electronic device) 10 and an attachment 20 attached to the electronic magnifying glass 10. As shown in Figures 2(a) and (b), the electronic magnifying glass 10 includes a magnifying glass section (main body section) 12, a gripping section 14, and a neck section 16. The magnifying glass section 12 has a vertically elongated rectangular frame shape, with a camera (imaging section) 12a for imaging a subject provided on one side and a monitor 12b for magnifying and displaying the subject captured by the camera 12a provided on the other side.

[0012] The gripping portion 14 is a columnar shape extending downward from the magnifying glass portion 12 and is the part that the user grips when using the electronic magnifying glass 10. A battery cover 14a, which is detachable from the gripping portion 14, is attached to one side of the gripping portion 14. The battery cover 14a is attached to the gripping portion 14 to cover a battery housing 14a1 provided on one side of the gripping portion 14. The battery housing 14a1 houses a battery (not shown) which is the power source. A power button 14b is provided on the other side of the gripping portion 14. The neck portion 16 is provided to be slightly narrower than the gripping portion 14 and connects the magnifying glass portion 12 and the gripping portion 14.

[0013] In the following description, the magnifying glass section 12 is considered the upper side, and the direction in which the magnifying glass section 12 and the gripping section 14 are aligned is defined as the vertical direction of the electronic magnifying glass 10. The camera 12a side of the magnifying glass section 12 is considered the front side, and the direction in which the camera 12a and the monitor 12b are aligned is defined as the front-to-back direction of the electronic magnifying glass 10. The left-to-right direction when the electronic magnifying glass 10 is viewed from the front side with the magnifying glass section 12 facing upwards is defined as the left-to-right direction of the electronic magnifying glass 10. As shown in Figure 2(a), a lens 12a1 for imaging the object to be observed (object) O (see Figure 3) is provided in the center of the camera 12a of the electronic magnifying glass 10. The lens 12a1 is directed straight ahead. In addition, illumination sections 12c, including LED light sources 12c1 for illuminating the object to be observed O, are provided on both the upper and lower sides of the camera 12a. Each LED light source 12c1 is directed diagonally forward to irradiate the object to be observed O, which is located directly in front of the lens 12a1. The lighting unit 12c is powered by a battery housed in the battery housing 14a1.

[0014] As shown in Figures 1 and 3, the attachment 20 is a thin, roughly box-shaped member, and its almost entire surface is a transparent member that is light-transmitting. The attachment 20 is detachable from the electronic magnifier 10 and is attached to the electronic magnifier 10 so as to cover the front side of the magnifier part 12. The attachment 20 is a member that, when attached to the electronic magnifier 10, allows light to be appropriately irradiated onto the object to be observed O when the object to be observed O is observed with the electronic magnifier 10. The attachment 20 comprises a bottom plate part 22 that forms a roughly box-shaped bottom plate and a side plate part 24 that forms a roughly box-shaped side plate. When the attachment 20 is attached to the electronic magnifier 10, the bottom plate part 22 is separated from the magnifier part 12.

[0015] An elastically deformable portion 24a is provided at the tip of the side plate portion 24. The elastically deformable portion 24a is provided in a frame shape that is slightly smaller than the outer circumference of the magnifying glass portion 12. By fitting the elastically deformable portion 24a onto the outer circumference of the magnifying glass portion 12, the elastically deformable portion 24a engages with the outer circumference of the magnifying glass portion 12, allowing the attachment 20 to be easily attached to the electronic magnifying glass 10. By pulling the attachment 20 attached to the electronic magnifying glass 10 forward, the engagement between the elastically deformable portion 24a and the magnifying glass portion is released, and the attachment 20 can be easily removed from the electronic magnifying glass 10. In this embodiment, a configuration in which the attachment 20 can be attached to and detached from the electronic magnifying glass 10 by the elastic deformation of the elastically deformable portion 24a as described above is illustrated, but the configuration for making the attachment 20 detachable from the electronic magnifying glass 10 is not limited.

[0016] As shown in Figure 3, a mirror arrangement space 20a is provided in the approximate center of the inner surface of the bottom plate portion 22, where two mirrors 31 and 32 are arranged. A reflective mirror (first mirror) 31 and a half mirror (second mirror) 32 are provided within the mirror arrangement space 20a. The reflective mirror 31 is positioned with its reflective surface facing backward, at a location where light emitted from the lower LED light source 12c1 on the inner surface of the bottom plate portion 22 is incident. The half mirror 32 is positioned with its mirror surface facing diagonally forward and downward (specifically towards the reflective mirror 31), at a location where light reflected by the reflective mirror 31 is incident. The half mirror 32 is also provided at an angle and configuration such that it reflects the light incident from the reflective mirror 31 forward to the mirror arrangement space 20a and transmits light incident from the front of the mirror arrangement space 20a. When the object to be observed O is positioned in front of the lens 12a1 (in front of the mirror arrangement space 20a), the half mirror 32 is positioned between the lens 12a1 and the object to be observed O.

[0017] Next, referring to FIG. 3, the light irradiation mode in the electronic loupe unit 1 of the first embodiment will be described. As shown in FIG. 3, when the LED light source 12c1 is turned on with the electronic loupe 10 directed at the observation object O such that the observation object O is positioned directly in front of the lens 12a1, the light emitted from the lower LED light source 12c1 among the two LED light sources 12c1 (see the arrow indicated by the solid line in FIG. 3; hereinafter referred to as "first light L1") enters the reflecting surface of the reflecting mirror 31 and is reflected toward the half mirror 32 side. The first light L1 that has entered the half mirror 32 is reflected toward the front side of the lens 12a1 (the front side of the half mirror 32, in front of the mirror arrangement space 20a) and irradiates the observation object O.

[0018] When the observation object O is irradiated with the first light L1, the light reflected by the observation object O and returning to the half mirror 32 side again (see the arrow indicated by the broken line in FIG. 3; hereinafter referred to as "second light L2") enters the half mirror 32 from the front side along the shape of the first light L1 reflected by the half mirror 32. The second light L2 that has entered the half mirror 32 passes through the half mirror 32, enters the lens 12a1, and the image of the observation object O is captured by the camera 12a and enlarged and displayed on the monitor 12b. As a result, in the electronic loupe unit 1, the observation object O can be observed while irradiating the observation object O with light. Thus, in the electronic loupe unit 1, by attaching the above attachment 20 to the electronic loupe 10, it is possible to realize coaxial epi-illumination in which the first light L1 irradiated to the observation object O and the second light L2 reflected by the observation object O and returning to the lens 12a1 side are coaxial. Incidentally, if the attachment 20 is not attached to the electronic loupe 10, the optical axis of the light irradiated from the illumination unit 12c toward the observation object O and the optical axis of the light irradiated from the illumination unit 12c, reflected by the observation object O, do not become coaxial, and side illumination occurs.

[0019] Next, a modification of this embodiment will be described with reference to FIG. 4. As shown in FIG. 4, an electronic loupe unit 101 according to a modification of the first embodiment includes an electronic loupe 10, an attachment 120 attached to the electronic loupe 10, and a polarizing filter unit (polarizing filter) 40. The electronic loupe unit 101 according to the modification is different from the electronic loupe unit 1 of the first embodiment in that it further includes a polarizing filter unit 40 and a light-shielding portion 21. Since the other configurations are the same as those of the electronic loupe unit 1 of the first embodiment, the same members are denoted by the same reference numerals, and the description thereof will be omitted or simplified.

[0020] The polarizing filter unit 40 is formed of a polarizing filter over substantially the entire area thereof and is a member that can be attached to and detached from the electronic loupe 10 in the same manner as the attachment 120. The polarizing filter unit 40 has a shallow box shape and is attached to the electronic loupe 10 by elastic deformation of the tips of the side plates in the same manner as the attachment 120. The polarizing filter unit 40 is attached to the electronic loupe 10 inside the attachment 120 so as to cover the camera 12a and the illumination unit 12c of the electronic loupe 10 and is disposed between the illumination unit 12c, the reflection mirror 31, and the half mirror 32. In a state where the polarizing filter unit 40 and the attachment 120 are attached to the electronic loupe 10, the polarizing filter unit 40 is separated from the camera 12a and the illumination unit 12c and is slightly separated from the mirror arrangement space 20a of the attachment 120.

[0021] By attaching the polarizing filter unit 40 to the electronic magnifier 10, the first light L1 passes through the polarizing filter unit 40 before reaching the reflective mirror 31 of the attachment 120, thereby suppressing scattering. As a result, the second light L2 is more coaxially aligned with the first light L1 and incident on the lens 12a1, preventing phenomena such as overexposure in the image displayed on the monitor 12b, and allowing for clearer observation of the object O. In this modified example, the polarizing filter unit 30 is shown as a separate component from the attachment 120, but the polarizing filter unit 30 may also be integrated with the attachment 120.

[0022] The light-shielding portion 21 is made of a light-shielding material, is roughly plate-shaped, and is provided on the upper side of the inner surface of the bottom plate portion 22 of the attachment 120. Specifically, the light-shielding portion 21 is provided at a position where it is struck by light emitted from the upper of the two LED light sources 12c1 of the electronic magnifier 10 (hereinafter referred to as "third light L3"). Because the attachment 120 is provided with such a light-shielding portion 21, the third light L3 is blocked by the light-shielding portion 21 and does not reach the object to be observed O. Therefore, it is possible to prevent excess light from irradiating the object to be observed O, and the object to be observed O can be observed more clearly.

[0023] As described above, the attachments 20 and 120 of this embodiment are attachments detachable from an electronic magnifier 10 which includes an illumination unit 12c for illuminating an object to be observed O and a camera 12a for imaging the object to be observed. The attachments 20 and 120 include a reflective mirror 31 that reflects light from the illumination unit 12c, and a half mirror 32 that reflects the light incident from the reflective mirror 31 toward the object to be observed O and transmits the light reflected by the object to be observed O. The half mirror 32 is positioned so that the light from the object to be observed O that has passed through the half mirror 32 is incident on the camera 12a. With the above configuration, the attachments 20 and 120 of this embodiment both pass through the half mirror 32, so that the object to be observed O can be observed clearly. Therefore, by attaching the attachments 20 and 120 of this embodiment to the electronic magnifying glass 10, observation can be performed while appropriately illuminating the object O to be observed.

[0024] Furthermore, in the attachments 20 and 120 of this embodiment, the reflective mirror 31 and the half mirror 32 are arranged such that the optical axis of the light reflected by the half mirror 32 and incident on the object to be observed O is coaxial with the optical axis of the light reflected by the object to be observed O and transmitted through the half mirror 32. This makes it possible to achieve coaxial incident illumination, allowing for clear observation of the object to be observed O.

[0025] Furthermore, in the attachments 20 and 120 of this embodiment, the illumination unit 12c and camera 12a are arranged such that the optical axis of the light emitted from the illumination unit 12c toward the object to be observed O and the optical axis of the light emitted from the illumination unit 12c and reflected by the object to be observed O are not coaxial. In the electronic magnifier 10 configured as described above, the object to be observed O is illuminated by side illumination. By attaching the attachments 20 and 120 of this embodiment to such an electronic magnifier 10, the object to be observed O is illuminated by coaxial incident illumination, so that appropriate light can be emitted according to the object to be observed O.

[0026] Furthermore, in the modified attachment 120 of this embodiment, it is detachable from an electronic magnifier 10 equipped with an illumination unit 12c including two LED light sources 12c1. When attached to the electronic magnifier 10, the reflective mirror 31 reflects light from one LED light source 12c1 toward the half mirror 32 and includes a light-shielding section 21 that blocks light from the other LED light source 12c1. With this configuration, the light that is irradiated onto the object to be observed O by side illumination without passing through the half mirror 32 is blocked by the light-shielding section 21, thus preventing excess light from being irradiated onto the object to be observed O.

[0027] The electronic magnifying glass unit 1 according to this embodiment comprises an electronic magnifying glass 10 and the attachment 20 described above. With this configuration, it is possible to observe the object to be observed while illuminating it with coaxial incident illumination, and an electronic magnifying glass unit 1 that can observe the object to be observed while appropriately illuminating it with light can be realized.

[0028] Furthermore, an electronic magnifying glass unit 101 according to a modified example of this embodiment includes a polarizing filter unit 40 positioned between the illumination unit 12c, the reflective mirror 31, and the half-mirror 32 when the attachment 120 is attached to the electronic magnifying glass 10. With this configuration, the scattering of light emitted from the illumination unit 12c and reaching the reflective mirror 31 is suppressed by the polarizing filter unit 40, thereby preventing phenomena such as so-called overexposure when observing the object O.

[0029] Furthermore, the electronic magnifying glass unit 101 according to a modified example of this embodiment is detachable between the electronic magnifying glass 10 and the attachment 120. This allows the polarizing filter unit 40 to be easily attached to and detached from the electronic magnifying glass 10, and makes it easy to change whether or not the effect of the polarizing filter is present in the electronic magnifying glass unit 101.

[0030] Furthermore, in the electronic magnifying glass unit 1 according to this embodiment, the electronic magnifying glass 10 comprises a magnifying glass section 12 having an illumination section 12c and a camera 12a, and a gripping section 14 extending from the magnifying glass section 12. With this configuration, an electronic magnifying glass unit 1 can be realized that allows observation of an object O by coaxial incident illumination while gripping the gripping section 14.

[0031] Next, a second embodiment of the present invention will be described with reference to Figures 5 to 7. As shown in Figures 5(a) and (b), the electronic magnifying glass unit (electronic equipment unit) 201 according to the second embodiment consists of an electronic magnifying glass (electronic equipment) 210 and an attachment 220 attached to the electronic magnifying glass 210. The electronic magnifying glass 210 differs from the electronic magnifying glass 10 of the first embodiment in that it further includes a magnifying glass-side connector (connection part) 12d. Since its configuration is the same as that of the electronic magnifying glass 10 of the first embodiment, the same reference numerals are used for the same components, and their descriptions are omitted or simplified.

[0032] As shown in Figure 5(b), the magnifying glass connector 12d is located near the upper side of the upper LED light source 12c1 in the electronic magnifying glass 210. The magnifying glass connector 12d is electrically connected to a battery for supplying power to the illumination unit 12c, and its front surface is exposed on the front side of the magnifying glass unit 12. The surface (front) of the magnifying glass connector 12d is provided with terminals that can be connected to an external connector.

[0033] As shown in Figure 6, the attachment 220 of this embodiment is a substantially box-shaped transparent member, similar to the attachment 20 of the first embodiment, and is detachably attached to the electronic magnifier 210. It is attached to the electronic magnifier 210 so as to cover the front side of the magnifier part 12. The attachment 220 comprises a bottom plate portion 222 which constitutes a substantially box-shaped bottom plate, and a side plate portion 224 which constitutes a substantially box-shaped side plate. Similar to the attachment 20 of the first embodiment, the attachment 220 can be easily attached to the electronic magnifier 210 by the elastic deformation of the tip of the side plate portion 224.

[0034] A mirror arrangement space 220b, in which a mirror 233 is positioned, is provided approximately in the center of the inner surface of the bottom plate portion 222. A half mirror (third mirror) 233 is provided within the mirror arrangement space 220b. The half mirror 233 is positioned in the mirror arrangement space 220b with its mirror surface facing diagonally forward and upward. Above the mirror arrangement space 220b on the inner surface of the bottom plate portion 222, a roughly rectangular parallelepiped light source arrangement portion 236 is provided, in which four LED light sources (light sources) 236a are arranged. Each LED light source 236a is provided on the lower side surface of the light source arrangement portion 236 with its light-emitting side facing downward.

[0035] The half mirror 233 is positioned where light emitted from each LED light source 236a is incident. The half mirror 233 is also positioned at an angle and configuration such that it reflects the light incident from each LED light source 236a forward to the mirror arrangement space 220b and transmits light incident from the front of the mirror arrangement space 220b. When the object to be observed O is positioned in front of the lens 12a1 (in front of the mirror arrangement space 220b), the half mirror 233 is positioned between the lens 12a1 and the object to be observed O. In this state, each LED light source 236a is positioned such that the optical axis of the light incident from each LED light source 236a to the half mirror 233 and the optical axis of the light reflected by the object to be observed O and transmitted through the half mirror 233 are approximately perpendicular.

[0036] An attachment-side connector (contact) 238 is provided approximately in the center of the rear surface of the light source arrangement section 236, which is electrically connected to the LED light source 236a of the attachment 220. The front surface (rear surface) of the attachment-side connector 238 is provided with terminals that can be connected to an external connector. When the attachment 220 is attached to the electronic magnifier 210, the magnifier-side connector 12d and the attachment-side connector 238 come into contact in the front-to-back direction and are electrically connected (see Figure 5(b)), and power from the electronic magnifier 210 is supplied to the attachment 220. When power is supplied from the electronic magnifier 210 to the attachment 220, each LED light source 236a of the attachment 220 lights up. Note that the connection configuration between the magnifier-side connector 12d and the attachment-side connector 238 is not limited.

[0037] Next, with reference to Figure 7, the light irradiation method in the electronic magnifying glass unit 201 of the second embodiment will be described. As shown in Figure 7, when the electronic magnifying glass 210 is pointed towards the object to be observed O so that the object to be observed O is directly in front of the lens 12a1 with each LED light source 236a of the attachment 220 lit, the light emitted from each LED light source 12c1 (see the arrows shown by the solid lines in Figure 7; hereinafter referred to as "third light L3") is incident on the half mirror 233. The third light L3 incident on the half mirror 233 is reflected to the side directly in front of the lens 12a1 (the front side of the half mirror 233, in front of the mirror arrangement space 220b) and irradiates the object to be observed O.

[0038] When the third light L3 is irradiated onto the object O, the light reflected from the object O and returning to the half mirror 233 (see the dashed arrow in Figure 7; hereinafter referred to as "the fourth light L4") enters the half mirror 233 from the front, following the path of the third light L3 that was reflected by the half mirror 233. The fourth light L4 that entered the half mirror 233 passes through the half mirror 233 and enters the lens 12a1, capturing an image of the object O in the camera 12a, which is then magnified and displayed on the monitor 12b. As a result, the object O can be observed in the electronic magnifying glass unit 201 while it is illuminated with light. In this way, the electronic magnifier unit 201 can achieve coaxial reflected illumination where the third light L3 irradiated onto the object to be observed O and the fourth light L4 reflected by the object to be observed O and returned to the lens 12a1 are coaxial, by using the power supplied from the electronic magnifier 210 to light up the LED light source 236a on the attachment 220 side without using the LED light source 12c1 on the electronic magnifier 210 side.

[0039] Next, a modified example of this embodiment will be described with reference to Figures 8(a) and (b). As shown in Figure 8, the electronic magnifying glass unit 301 according to the modified example of the second embodiment has an attachment 320 that is roughly rectangular in shape and can be attached to and detached from the electronic magnifying glass 310 by placing it over the magnifying glass portion 12 so as to cover the entire magnifying glass portion 12 of the electronic magnifying glass 310. The attachment 320 comprises a bottom plate portion 322 that constitutes a roughly rectangular bottom plate and a side plate portion 324 that constitutes a roughly rectangular side plate. The tip (lower end) of the side plate portion 324 is an opening 324a that is open in the vertical direction. When attaching the attachment 320 to the electronic magnifying glass 310, the magnifying glass portion 12 is inserted into the opening 324a. An engaging portion (not shown) is provided on the inner surface of the side plate portion 324 that elastically engages with the outer surface of the magnifying glass portion 12, thereby allowing the attachment 20 to be easily attached to the electronic magnifying glass 10.

[0040] In this modified example, a magnifying glass connector 12e is provided on the upper side of the magnifying glass section 12 of the electronic magnifying glass 310. The magnifying glass connector 12e is electrically connected to a battery for supplying power to the illumination section 12c, and its upper surface is exposed above the magnifying glass section 12. The surface (upper surface) of the magnifying glass connector 12e is provided with terminals that can be connected to an external connector. On the other hand, in the attachment 320 of this modified example, an attachment-side connector (contact) 339 is provided on the inner surface of the bottom plate section 322 at a position corresponding to the magnifying glass connector 12e, and is electrically connected to the LED light source 236a of the attachment 320. When the attachment 320 is fully attached to the electronic magnifying glass 310, the attachment-side connector 339 comes into contact with the magnifying glass connector 12e, and the two are electrically connected (see Figure 8(b)). As a result, power from the electronic magnifying glass 310 is supplied to the attachment 320.

[0041] As described above, the attachments 220 and 320 according to this embodiment are attachments 220 and 320 that can be attached to electronic magnifiers 210 and 310, which include an illumination unit 12c for illuminating an object to be observed O with light, a camera 12a for imaging the object to be observed O, and magnifier-side connectors 12d and 12e electrically connected to a power supply that supplies power to the illumination unit 12c, and the attachments 220 and 320 include an LED light source 236a and a mechanism that reflects the light incident from the LED light source 236a toward the object to be observed O for observation. The device comprises a half-mirror 233 that transmits light reflected from the object O, and attachment-side connectors 238 and 339 that can be electrically connected to the magnifying glass-side connectors 12d and 12e. The half-mirror 233 is positioned so that light from the object O that has passed through the half-mirror 233 is incident on the camera 12a, and when attached to the electronic magnifying glass 210 and 310, the attachment-side connectors 238 and 339 are electrically connected to the magnifying glass-side connectors 12d and 12e.

[0042] With the above configuration, the attachments 220 and 320 of this embodiment can be used to light up each LED light source 236a on the attachment 220 and 320 by utilizing the power supplied from the electronic magnifiers 210 and 310 via the magnifier-side connectors 12d and 12e and the attachment-side connectors 238 and 339, without using the LED light source 12c1 on the electronic magnifier 210 and 310 side, even with the LED light source 12c1 on the electronic magnifier 210 and 310 side turned off. As a result, both the light emitted from each LED light source on the attachment 220 and 320 side that enters the object to be observed O and the light reflected from the object to be observed O that enters the camera 12a pass through the half mirror 233, allowing for clear observation of the object to be observed O. Therefore, even with the attachments 220 and 320 of this embodiment, by attaching them to the electronic magnifier 210 and 310, it is possible to observe the object to be observed O while appropriately illuminating it with light.

[0043] Furthermore, in the attachments 220 and 320 of this embodiment, the LED light sources 236a on the attachment 220 and 320 side are arranged such that the optical axis of the light incident from the LED light source 236a to the half mirror 233 and the optical axis of the light reflected by the object of observation O and transmitted through the half mirror 233 are substantially orthogonal. With this configuration, coaxial incident illumination can be achieved by arranging the half mirror 233 so that its mirror surface is tilted toward both the LED light source 236a on the attachment 220 and 320 side and the object of observation O. This provides a specific arrangement of each LED light source 236a and the half mirror 233 in the attachments 220 and 320.

[0044] The embodiments described above are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and gist of the invention, as well as in the claims of the invention and its equivalents. For example, in the embodiments described above, an electronic magnifier with LED light sources provided above and below the camera was illustrated, but the arrangement of the LED light sources in the electronic magnifier is not limited. For example, even in an electronic magnifier with multiple LED light sources arranged in a ring around the camera 12a, coaxial incident illumination can be achieved by attaching the attachment of the present invention. [Explanation of symbols]

[0045] 1: Electronic magnifying glass unit, 10: Electronic magnifying glass, 12a: Camera, 12c: Illumination unit, 20: Attachment, 31: Reflecting mirror, 32: Half mirror, O: Object to be observed

Claims

1. An attachment that can be attached to and detached from an electronic device, comprising an illumination unit for irradiating an object with light and an imaging unit for imaging the object, A first mirror that reflects light from the aforementioned lighting unit, The system comprises a second mirror that reflects the light incident from the first mirror toward the object and transmits the light reflected by the object, The second mirror is positioned such that the light from the object that has passed through the second mirror is incident on the imaging unit. attachment.

2. The first mirror and the second mirror are arranged such that the optical axis of the light reflected by the second mirror and incident on the object is coaxial with the optical axis of the light reflected by the object and transmitted through the second mirror. The attachment according to claim 1.

3. The illumination unit and the imaging unit are arranged such that the optical axis of the light emitted from the illumination unit toward the object and the optical axis of the light emitted from the illumination unit and reflected by the object are not coaxial, and the electronic device is detachably attached to the electronic device. The attachment according to claim 1.

4. It is detachable from the electronic device that includes the illumination unit containing multiple light sources, When attached to the electronic device, the first mirror includes a light-shielding portion that reflects light from at least one of the light sources toward the second mirror and blocks light from other light sources. The attachment according to claim 1.

5. An attachment that can be attached to and detached from an electronic device, comprising: an illumination unit for illuminating an object with light; an imaging unit for imaging the object; and a connection unit electrically connected to a power supply for supplying power to the illumination unit, A light source, a third mirror that reflects the light incident from the light source toward the object and transmits the light reflected by the object, The connection portion comprises a contact that can be electrically connected to the aforementioned connection portion, The third mirror is positioned such that the light from the object that has passed through the third mirror is incident on the imaging unit. When attached to the electronic device, the contact is electrically connected to the connection part. attachment.

6. The light source is arranged such that the optical axis of the light incident on the third mirror from the light source and the optical axis of the light reflected by the object and transmitted through the third mirror are substantially perpendicular to each other. The attachment according to claim 5.

7. The aforementioned electronic device, An attachment according to any one of claims 1 to 6, An electronic device unit equipped with the following features.

8. When the attachment is mounted on the electronic device, it includes a polarizing filter positioned between the illumination unit and the first mirror and the second mirror. The electronic equipment unit according to claim 7.

9. The polarizing filter is detachable between the electronic device and the attachment. The electronic device unit according to claim 8.

10. The electronic device is an electronic magnifying glass comprising a main body having the illumination unit and the imaging unit, and a gripping unit extending from the main body. The electronic equipment unit according to claim 7.

Images