TWI581052B - Wide-angle imaging device - Google Patents

Description

Wide-angle image capturing device

The invention relates to a wide-angle image capturing device, in particular to a wide-angle image capturing device capable of completely capturing an image of an inner wall of a mouth at one time.

Modern medicine is developed, doctors can insert the oral camera into the patient's mouth, use the lens in the entrance cavity to ingest the image of the inner wall and teeth of the mouth, and then transmit the image information to the external display screen through the transmission line, thereby providing doctors to observe the disease. Is there any abnormality in the inner wall of the mouth?

However, while the sensor is inserted into the patient's mouth and moved, the external display must be observed, which not only causes extreme inconvenience in operation, but also makes the sensor touch the patient's mouth, causing discomfort to the patient. And injuries, it is also easy to produce errors in medical examinations.

Therefore, U.S. Patent No. 6,480,229 discloses a convex mirror reflection that collects ambient light through an astigmatism correction sheet onto a photosensitive element. This device can view the scene on both sides of the oral cavity, but the image directly in front of the oral cavity is convexly mirrored. Covered, unable to completely capture the image of the inner wall of the mouth.

Further, U.S. Patent No. 7,638,818 discloses a miniature camera in which light can be displayed on a photosensitive member via a lens unit. However, this device can only view a small range of viewing angles, and if it is necessary to move the micro camera position to view other viewing angles, it is impossible to completely capture the image of the inner wall of the oral cavity at one time.

Accordingly, it is an object of the present invention to provide a wide-angle image capturing device that can completely capture an image of an inner wall of a mouth at one time.

Therefore, the wide-angle image capturing device of the present invention comprises a casing, a light-emitting element, a mirror unit and an imaging module. The housing has an accommodation space. The illuminating element is disposed in the accommodating space and emits a light source. The mirror unit is disposed in the accommodating space and widely receives the reflected light source generated by the light source. The imaging module is disposed in the accommodating space and is located at one side of the mirror unit to receive the reflected light source output by the mirror unit, and the imaging module includes an objective lens unit and a lens unit a photosensitive unit on one side, the objective lens unit focuses and projects the reflected light source on the photosensitive unit, and images the photosensitive unit.

Preferably, the mirror unit widely receives an angle of not more than 76 degrees with respect to the optical axis, and is not less than 64 degrees.

Preferably, the method further includes a beam splitter between the mirror unit and the imaging module, the beam splitting the incident light source to project in a first direction through the mirror unit, and the mirror unit is The output of the reflected light source is projected toward the objective lens unit in a second direction.

Preferably, the mirror unit is a plano-convex lens, and the curved end of the plano-convex lens faces the imaging module.

Preferably, the mirror unit comprises a meniscus lens and a bit An annular mirror near one end of the objective lens unit, the large aperture surface of the annular mirror facing the meniscus lens, and a small aperture surface away from the meniscus lens, and the annular mirror is opposite to the light The shaft has an angle.

Preferably, the mirror unit comprises a meniscus lens and a hollow trapezoidal annular mirror on a side of the meniscus lens near the imaging module, and the large aperture surface of the trapezoidal annular mirror faces The meniscus lens has a small aperture face away from the meniscus lens.

Preferably, the objective lens unit is an objective lens, and the photosensitive unit is a photosensitive element, and the objective lens corresponds to the photosensitive element.

Preferably, the objective lens unit is an objective lens, and the photosensitive unit comprises a plurality of photosensitive elements arranged in an array on the same plane.

Preferably, the objective lens unit comprises a plurality of objective lenses, and the photosensitive unit comprises a plurality of photosensitive elements, each of which corresponds to each of the photosensitive elements, and the photosensitive elements are arranged in an array on the same plane.

Preferably, the light emitting element can be a light emitting diode.

The effect of the present invention is that a light source is emitted from a light-emitting element located in the accommodating space of the housing, and when the light source is irradiated to an oral cavity, the reflected light source reflected by the light source from the oral cavity is incident into the mirror unit. The objective lens receives the reflected light source outputted by the mirror unit, and the photosensitive element cooperates with the focal length adjustment position of the objective lens to focus the reflective light source on the photosensitive element for imaging, and then performs image analysis on the image formed on the photosensitive element to achieve image analysis. The purpose of viewing a wide-angle image of the oral cavity.

1‧‧‧shell

11‧‧‧ accommodating space

2‧‧‧Lighting elements

3‧‧ ‧ Mirror unit

31‧‧‧ Plano-convex lens

311‧‧‧ flat end

312‧‧‧ Plano-lens body

313‧‧‧Arc end

32‧‧‧Mental lens

321‧‧‧First curved surface

322‧‧‧Moon month ontology

323‧‧‧second curved surface

33‧‧‧ Annular Mirror

331‧‧‧Activated reflector

34‧‧‧Hollow trapezoidal ring mirror

341‧‧‧Perforation

342‧‧‧ side

343‧‧‧ side

4‧‧‧beam splitter

41‧‧‧Refractive surface

42‧‧‧Distribution ontology

43‧‧‧ penetration surface

5‧‧‧ imaging module

51‧‧‧ Objective lens unit

511‧‧‧ Objective lens

52‧‧‧Photosensitive unit

521‧‧‧Photosensitive element

9‧‧‧ oral

L‧‧‧ optical axis

Θ‧‧‧ angle

Other features and effects of the present invention will be apparent from the following description of the drawings, wherein: FIG. 1 is a block diagram illustrating a first embodiment of the wide-angle imaging device of the present invention; FIG. The first embodiment of the wide-angle image capturing device of the present invention is illustrated; FIG. 3 is a schematic view showing a second embodiment of the wide-angle image capturing device of the present invention; and FIG. 4 is an enlarged view showing the second embodiment of the wide-angle image capturing device of the present invention. The hollow trapezoidal annular mirror in the example; FIG. 5 is a schematic view showing the third embodiment of the wide-angle image capturing device of the present invention; and FIG. 6 is an enlarged view showing the ring in the third embodiment of the wide-angle image capturing device of the present invention. Figure 7 is a schematic view showing a fourth embodiment of the wide-angle image capturing device of the present invention; Figure 8 is a block diagram showing a fifth embodiment of the wide-angle image capturing device of the present invention; and Figure 9 is a schematic view showing The fifth embodiment of the wide-angle image capturing device of the present invention; FIG. 10 is a schematic view showing a sixth embodiment of the wide-angle image capturing device of the present invention; and FIG. 11 is a schematic view showing a seventh embodiment of the wide-angle image capturing device of the present invention; Figure 12 is a schematic view showing an eighth embodiment of the wide-angle image capturing device of the present invention; and Figure 13 is a side elevational view showing another embodiment of the imaging module of the wide-angle image capturing device of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

1 and 2 show a first embodiment of the wide-angle image capturing device of the present invention. The wide-angle image capturing device comprises a casing 1, a light-emitting element 2, a mirror unit 3 and an imaging module 5.

The housing 1 has an accommodation space 11 . The light-emitting element 2 is disposed in the accommodating space 11. The light-emitting element 2 is a light-emitting diode or the like, and emits a light source A1. The light source A1 is visible light, but not limited thereto, and may be other wavelength bands. Light sources such as ultraviolet light and infrared light. In other embodiments, the wide-angle image capturing device may also replace the light-emitting element 2 with an ambient light source that is sufficiently bright outside.

The mirror unit 3 is a plano-convex lens disposed in the accommodating space 11 and widely receiving the angle θ of the reflected light source B reflected by the light source A1. The angle θ is matched by the optical axis L and the visible area range. It is defined that in the embodiment, the angle θ is not more than 76 degrees, and is not less than 64 degrees, so that the purpose of wide-angle image capturing can be achieved.

The imaging module 5 is disposed in the accommodating space 11 and is located at one side of the mirror unit 3 to receive the reflected light source B output by the mirror unit 3, and the imaging module 5 includes an objective lens unit. 51 and one located in the object A photosensitive unit 52 on one side of the mirror unit 51 that focuses and projects the reflected light source B on the photosensitive unit 52, and images the photosensitive unit 52.

The objective lens unit 51 is an objective lens, and the photosensitive unit 52 is a photosensitive element, and the objective lens unit 51 corresponds to the position of the photosensitive unit 52.

In the present embodiment, the wide-angle image capturing device is exemplified for obtaining (photographing) a wide-angle (panoramic) image in the oral cavity 9 of a user, but is also applicable to other uses, and is not limited thereto.

Therefore, when the image in the oral cavity 9 is to be obtained, as shown in FIG. 2, the light source A1 emitted from the light-emitting element 2 will uniformly illuminate the inner wall of the oral cavity 9 in the direction of the inside of the oral cavity 9, so that the light source A1 is received in the oral cavity 9. The reflected light source B reflected by the wall enters the plane end 311 of the mirror unit 3 and passes through the body 312 of the mirror unit 3, and then exits the curved end 313 of the mirror unit 3, and enters the objective unit 51 along the optical path C1. And the objective lens unit 51 gathers the reflected light sources B together and emits them along an optical path D, so that the reflected light sources B are concentrated on a focus point (not shown), and the photosensitive unit 52 is disposed at the focus point. The photosensitive unit 52 can completely receive the light of the reflected light source B and image on the photosensitive unit 52.

According to the above embodiment, the wide-angle image capturing device of the present embodiment widely collects the reflected light source B in the oral cavity 9 from the flat end 311 of the mirror unit 3, and forms an image by the imaging module 5, thereby achieving wide-angle image capturing. effect. In addition, in this embodiment, by miniaturizing the volume of the scope unit 3 and the imaging module 5, the light source A1 that illuminates the light-emitting element 1 toward the oral cavity 9 is not subjected to Obvious blocking to ensure image quality.

Referring to FIG. 1 , FIG. 3 and FIG. 4 , a second embodiment of the wide-angle image capturing device of the present invention is substantially the same as the first embodiment, and the main difference from the first embodiment is that the mirror unit 3 is A meniscus lens 32 and a hollow trapezoidal annular mirror 34 on one side of the meniscus lens 32 are included. The hollow trapezoidal annular mirror 34 has a centrally located through hole 341 corresponding to the position of the meniscus lens 32, and the through hole 341 is larger than the diameter of the meniscus lens 32, and a larger side surface 342 thereof faces. The meniscus lens 32 has a smaller side surface 343 away from the meniscus lens 32, so that the wide-angle image capturing device can further enhance its optical function by the meniscus lens 32 and the hollow trapezoidal annular mirror 34. The performance makes the obtained oral 9 image range wider and more complete.

In this embodiment, the light source A1 emitted by the light-emitting element 2 will uniformly illuminate the inner wall of the oral cavity 9 in the direction of the inside of the oral cavity 9, and the reflected light source B generated by the light source A1 being reflected by the inner wall of the oral cavity 9 will enter the bend. The first curved surface (outer convex curved surface) 321 of the lunar lens 32 is emitted from the second curved surface 323 (concave concave surface) of the meniscus lens 32, and the reflected light source B is also from the hollow trapezoidal annular mirror The side surface 342 of the 34 enters the meniscus body 322. At the same time, the reflected light source B is reflected and reflected by a smaller side surface 343 of the meniscus lens 32, and then enters the objective lens unit 51 along the optical path C1, and is reflected by the objective lens unit 51. The light sources B are collected together and emitted along an optical path D, so that the reflected light source B is concentrated on a gathering point (not shown), and the photosensitive unit 52 is disposed at the focus point, so that the photosensitive unit 52 can completely receive the reflection. The light of the light source B is imaged on the photosensitive unit 52.

Referring to FIG. 1 , FIG. 5 and FIG. 6 , a third embodiment of the wide-angle image capturing device of the present invention is substantially the same as the second embodiment, and the main difference from the first embodiment is that the mirror unit 3 is different from the first embodiment. The invention comprises a meniscus lens 32 and an annular mirror 33 at one end of the meniscus lens 32. The annular mirror 33 has an annular reflecting surface 331 opposite to the oral cavity 9 and the optical axis. L has an angle such that the large aperture face of the annular mirror 33 faces the meniscus lens 32, and a small aperture face thereof is away from the meniscus lens 32, so that the wide angle image capturing device can further utilize the meniscus lens 32 And the annular mirror 33 enhances its optical performance, so that the obtained image range of the oral cavity 9 is wider and more complete.

In this embodiment, the light source A1 emitted by the light-emitting element 2 is directed toward the inside of the oral cavity 9 and can uniformly illuminate the inner wall of the oral cavity 9, so that the reflected light source B generated by the light source A1 being reflected by the inner wall of the oral cavity 9 is incident thereon. The first arc surface (outer convex arc surface) 321 of the meniscus lens 32 and the second arc surface 323 (concave arc surface) of the meniscus lens 32 are emitted while the reflection of the meniscus lens 32 is not incident. The light source B is reflected and emitted from the annular reflecting surface 331, and then enters the objective lens unit 51 along the optical path C1, and the reflected light source B is collected by the objective lens unit 51 together, and is emitted along an optical path D, so that the reflected light source B is concentrated on one. On the gathering point (not shown), and the photosensitive unit 52 is disposed at the focus point, the photosensitive unit 52 can completely receive the light of the reflected light source B and image on the photosensitive unit 52.

Referring to FIG. 1 , FIG. 6 and FIG. 7 , a fourth embodiment of the wide-angle image capturing device of the present invention is substantially the same as the first embodiment, and the main difference from the first embodiment is that the mirror unit 3 includes a crescent The lens 32 and the annular mirrors 33a and 33b are located at one end of the meniscus lens 32. Each of the annular mirrors 33 has an annular reflecting surface 331a and 331b. The annular mirrors 33a and 33b are arranged at intervals in the light. On the axis L and at an angle with respect to the optical axis L, the large aperture surface of the annular mirrors 33a, 33b faces the meniscus lens 32, and a small aperture surface thereof is away from the meniscus lens 32. The wide-angle image capturing device can further enhance the optical performance of the meniscus lens 32 and the annular mirror 33, so that the obtained image range of the oral cavity 9 is wider and more complete.

In the present embodiment, the light source A1 emitted by the light-emitting element 2 will uniformly illuminate the inner wall of the oral cavity 9 in the direction of the inside of the oral cavity 9, so that the reflected light source B whose light source A1 is reflected by the inner wall of the oral cavity 9 is incident into the meniscus type. The first curved surface (outer convex curved surface) 321 of the lens 32 is emitted from the second curved surface 323 (concave concave surface) of the meniscus lens 32, and the reflected light source B that is not incident on the meniscus lens 32 will Each of the annular reflecting surfaces 331a and 331b reflects and emits, and then enters the objective lens unit 51 along the optical path C1, and the reflected light source B is collected by the objective lens unit 51 and emitted along an optical path D, so that the reflected light source B is concentrated. A focusing point (not shown) is disposed, and the photosensitive unit 52 is disposed at the focus point, so that the photosensitive unit 52 can completely receive the light of the reflected light source B and image on the photosensitive unit 52.

Referring to FIG. 8 and FIG. 9, a fifth embodiment of the wide-angle image capturing device of the present invention is substantially the same as the first embodiment, and further includes a casing 1, a light-emitting element 2, a mirror unit 3, and a Imaging module 5. The main difference from the first embodiment is that the wide-angle image capturing device of the present embodiment further includes a beam splitter 4, and the light-emitting elements 2 are disposed at different positions, and the light-emitting elements are different. 2 is located on the side of the beam splitter 4 that refracts the light source.

The beam splitter 4 is disposed in the accommodating space 11 and is located between the mirror unit 3 and the imaging module 5. The beam splitter 4 includes a refracting surface 41, a beam splitting body 42 and a penetrating surface 43. The refracting surface 41 refracts the incident light source A2 to illuminate the light source A3 toward the oral cavity 9 such that the reflected light source B reflected by the inner wall of the oral cavity 9 is incident on the mirror unit 3, and is reflected by the mirror unit 3 The optical path B1 enters the spectroscopic body 42 via the refracting surface 41, and then exits through the transmissive surface 43 and enters the objective lens unit 51 along the optical path C2. The beam splitter 4 can be replaced with a beam splitting device having a splitting and filtering function, and is not limited to the beam splitter 4 disclosed in the embodiment.

Compared with the foregoing first embodiment, the beam splitter 4 of the embodiment can shorten the light path of the light source A2 emitted by the light-emitting element 2, so that the light source A2 is more concentrated to illuminate in the direction of the cavity 9, and does not pass through the optical path of the oral cavity 9. Divergence, and can effectively use the light source A2.

In the present embodiment, the light-emitting element 2 emits the light source A2 to be irradiated in the direction of the beam splitter 4, so that the light source A2 is irradiated toward the inside of the oral cavity 9 by the refractive light source A3 of the refractive surface 41 of the beam splitter 4 and uniformly irradiates the oral cavity. 9 inner wall, the light source A3 is reflected by the inner wall of the oral cavity 9 and the reflected light source B is incident on the plane end 311 of the mirror unit 3, and passes through the body 312 of the mirror unit 3, and the curved surface of the mirror unit 3 The end 313 is emitted, and then enters the refractive surface 41 of the spectroscope 4 along the optical path B1, passes through the spectroscopic body 42 of the spectroscope 4, and then exits through the penetration surface 43 of the spectroscope 4, and then enters the objective lens unit 51 along the optical path C2. And the reflective light source B is gathered by the objective lens unit 51 and emitted along an optical path D, so that the reflected light source B is concentrated at a focus point (not shown) The photosensitive unit 52 is disposed at the focus point, so that the photosensitive unit 52 can completely receive the light of the reflected light source B and image on the photosensitive unit 52.

8 and FIG. 10, which is a sixth embodiment of the wide-angle image capturing device of the present invention, the embodiment is substantially the same as the fifth embodiment, and the main difference from the first embodiment is that the mirror unit 3 includes a a meniscus lens 32 and a hollow trapezoidal annular mirror 34 on a side of the meniscus lens 32 adjacent to the imaging module 5, and a large aperture surface 341 of the trapezoidal annular mirror 34 faces the meniscus The lens 32 has a small aperture face 342 away from the meniscus lens 32.

In the present embodiment, the light-emitting element 2 emits the light source A2 to be irradiated in the direction of the beam splitter 4, so that the light source A2 is irradiated toward the inside of the oral cavity 9 by the refractive light source A3 refracted by the refractive surface 41 of the beam splitter 4 and uniformly The reflective light source B generated by the light source A3 being reflected by the inner wall of the oral cavity 9 is incident on the first curved surface (outer convex curved surface) 321 of the meniscus lens 32, and the self-curved lens 32 is irradiated to the inner wall of the oral cavity 9. The second curved surface 323 (inward concave curved surface) is emitted, and the reflected light source B also comes from the side surface 342 of the hollow trapezoidal annular mirror 34. The reflected light source B enters the meniscus body 322, and at the same time, the curved meniscus lens 32 The incident reflected light source B is reflected and emitted through the outer mirror surface 343, and then enters the refractive surface 41 of the spectroscope 4 along the optical path B1, passes through the spectroscopic body 42 of the spectroscope 4, and is then emitted by the transmissive surface 43 of the spectroscope 4, and then The objective lens unit 51 is entered along the optical path C2, and the reflected light source B is collected by the objective lens unit 51 and emitted along an optical path D, so that the reflected light source B is concentrated on a gathering point (not shown), and the photosensitive unit 52 is just right. Set at the focus point, because The photosensitive unit 52 can completely receive the light of the reflected light source B and image on the photosensitive unit 52.

Referring to FIG. 8 and FIG. 11, a seventh embodiment of the wide-angle image capturing device of the present invention is substantially the same as that of the fifth embodiment, and the main difference from the fifth embodiment is that the mirror unit 3 includes a a meniscus lens 32 and an annular mirror 33 at one end of the meniscus lens 32. The annular mirror 33 has an annular reflecting surface 33, and the annular mirror 33 has a cavity relative to the oral cavity 9 and the optical axis L. The angle is such that the large aperture surface of the annular mirror 33 faces the meniscus lens 32, and a small aperture surface thereof is away from the meniscus lens 32. Thus, the wide angle imaging device can further utilize the meniscus lens 32 and the The annular mirror 33 enhances its optical performance, making the resulting image range of the oral cavity 9 wider and more complete.

In the present embodiment, the light-emitting element 2 emits the light source A2 to be irradiated in the direction of the beam splitter 4, so that the light source A2 is irradiated toward the inside of the oral cavity 9 by the refractive light source A3 of the refractive surface 41 of the beam splitter 4 and uniformly irradiates the oral cavity. 9 inner wall, the reflected light source B, which is reflected by the inner wall of the oral cavity 9 by the light source A3, enters the first curved surface (outer convex curved surface) 321 of the meniscus lens 32, and the second curved surface of the self-curved lens 32 323 (concave curved surface) is emitted, and the reflected light source B is also reflected from the annular reflecting surface 331, and then incident on the refractive surface 41 of the spectroscope 4 along the optical path B1, penetrating the spectroscopic body 42 of the spectroscope 4, and then The penetration surface 43 of the spectroscope 4 is emitted, and then enters the objective lens unit 51 along the optical path C2, and the reflected light source B is collected by the objective lens unit 51 and emitted along an optical path D, so that the reflected light source B is concentrated at a gathering point ( The figure is not shown, and the photosensitive unit 52 is disposed at the focus point, so the photosensitive unit 52 can be completely The light of the reflected light source B is received and imaged on the photosensitive unit 52.

Referring to FIG. 8 and FIG. 12, in the eighth embodiment of the wide-angle image capturing device of the present invention, the present embodiment is substantially the same as the fifth embodiment, and the main difference from the fifth embodiment is that the mirror unit 3 includes a bend. The lunar lens 32 and the annular mirrors 33a and 33b at one end of the meniscus lens 32, and the annular reflecting surfaces 331a and 331b are arranged on the optical axis L at intervals and are opposite to each other. The oral cavity 9 has an angle with the optical axis L such that the large aperture surface of the annular mirrors 33a, 33b faces the meniscus lens 32, and a small aperture surface thereof is away from the meniscus lens 32, such a wide-angle image capturing device Further, the meniscus lens 32 and the annular mirrors 33a and 33b can further enhance their optical performance, so that the obtained image range of the oral cavity 9 is wider and more complete.

In the present embodiment, the light-emitting element 2 emits the light source A2 to be irradiated in the direction of the beam splitter 4, so that the light source A2 is irradiated toward the inside of the oral cavity 9 by the refractive light source A3 of the refractive surface 41 of the beam splitter 4 and uniformly irradiates the oral cavity. 9 inner wall, the reflected light source B, which is reflected by the inner wall of the oral cavity 9 by the light source A3, enters the first curved surface (outer convex curved surface) 321 of the meniscus lens 32, and the second curved surface of the self-curved lens 32 The 323 (concave arc surface) is emitted, and the reflected light source B is also reflected from the annular reflecting surfaces 331a and 331b, and then incident on the refractive surface 41 of the spectroscope 4 along the optical path B1, and penetrates the spectroscopic body 42 of the spectroscope 4. And then exits from the penetration surface 43 of the spectroscope 4, enters the objective lens unit 51 along the optical path C2, and the reflected light source B is collected by the objective lens unit 51 together, and is emitted along an optical path D, so that the reflected light source B is concentrated on one. On the gathering point (not shown), and the photosensitive unit 52 is disposed at the focus point, the photosensitive unit 52 can completely receive the light of the reflected light source B, and is on the photosensitive unit 52. Imaging.

Referring to FIG. 13, it is worth mentioning that the imaging module 5 of the first to eighth embodiments mentioned above has yet another embodiment, and the imaging aspect of the present embodiment and the first to eighth embodiments are described. The module 5 is substantially identical, and the main difference from the first to eighth embodiments is that the photosensitive unit 52 includes a plurality of photosensitive elements 521 arranged in an array on the same plane.

The photosensitive unit 52 is cut into a plurality of photosensitive elements 521 from a single photosensitive element, and the photosensitive elements 521 are arranged in an array on the same plane. Referring to FIG. 11, the photosensitive elements 521 of the present embodiment are arranged in a 3×3 array. But not limited to this. The array of 3×3 photosensitive elements 521 is arranged in alphabetical order from left to right and above to the bottom, wherein the E photosensitive element 521 can display an image of the center of the oral cavity 9, and the A photosensitive element 521 can display the upper left corner of the oral cavity 9. Image, the rest and so on. Therefore, if it is known to view the oral image read by one of the photosensitive elements 521, the time can be saved, as long as the information of the output of the photosensitive element 521 is analyzed, the resolution of the photosensitive element 521 can be improved, and the image of the oral cavity 9 can be made clearer. .

Furthermore, the imaging module 5 of the first to eighth embodiments mentioned above has yet another embodiment, and the embodiment is substantially the same as the imaging module 5 mentioned in the first to eighth embodiments. The main difference from the first to eighth embodiments is that the objective lens unit 51 includes a plurality of objective lenses 511, and the photosensitive cells 52 include a plurality of photosensitive elements 521, each corresponding to each photosensitive element 521, and The photosensitive elements 521 are arranged in an array on the same plane.

Each of the objective lenses 511 corresponds to each of the photosensitive elements 521. The objective lens 511 and the photosensitive elements 521 of the present embodiment are arranged in an array of 3*3, but are not limited thereto. The array of 3×3 photosensitive elements 521 is arranged in alphabetical order from left to right and above to the bottom, wherein the E photosensitive element 521 can display an image of the center of the oral cavity, and the A photosensitive element 521 can display an image of the upper left corner of the oral cavity 9. The rest and so on. Therefore, if it is known to view the image of the oral cavity 9 read by one of the photosensitive elements 521, the time can be saved, as long as the information of the output of the photosensitive element 521 is analyzed, the resolution of the photosensitive element 521 can be improved, and the image of the oral cavity 9 can be further improved. Clear. The objective lens 511 and the photosensitive elements 521 are matched with each other, and the focal length of each of the objective lenses 511 can be adjusted according to the image of the oral cavity 9, so that the image focused on the photosensitive element 521 can be made clearer.

In summary, the wide-angle image capturing device of the present invention can receive a wide range of reflected light sources B by the arrangement of the mirror unit 3 of various embodiments, thereby realizing the effect of wide-angle image capturing. The combination of the objective lens unit 51 and the photosensitive unit 52 of the array design or the non-array design can improve the imaging quality of the wide-angle image capturing device. The miniaturized design of the mirror unit 3, the imaging module 5, and the arrangement of the beam splitter 4 allow the light-emitting element 2 to provide a light source at various locations within the housing 1 to enhance the flexibility of the structural arrangement. Therefore, the wide-angle image taking device of the present invention can achieve the object of the present invention.

However, the above is only the embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the simple equivalent changes and modifications made by the patent application scope and the patent specification of the present invention are still It is within the scope of the patent of the present invention.

1‧‧‧shell

11‧‧‧ accommodating space

2‧‧‧Lighting elements

3‧‧ ‧ Mirror unit

4‧‧‧beam splitter

5‧‧‧ imaging module

51‧‧‧ Objective lens unit

52‧‧‧Photosensitive unit

9‧‧‧ oral

Claims (9)

A wide-angle image capturing device comprising: a housing having an accommodating space; a light-emitting component disposed in the accommodating space and emitting a light source; a mirror unit disposed in the accommodating space; Widely receiving a reflected light source generated by the light source, the mirror unit includes a meniscus lens, and an annular mirror located near one end of the meniscus lens. The annular mirror has a direction toward the bend a large aperture surface of the lunar lens, a small aperture surface away from the meniscus lens, and an annular reflection surface connecting the large aperture surface and the small aperture surface, the annular mirror being opposite to the optical axis of the light emitting element An imaging module is disposed in the accommodating space and is located at one side of the mirror unit to receive the reflected light source output by the mirror unit, and the imaging module includes an objective lens unit and A photosensitive unit located on one side of the objective lens unit, the objective lens unit focuses and projects the reflected light source on the photosensitive unit, and images the photosensitive unit. The wide-angle image pickup device according to claim 1, wherein the scope unit widely receives an angle with the optical axis of not more than 76 degrees and not less than 64 degrees. The wide-angle image capturing device of claim 2, further comprising a beam splitter between the mirror unit and the imaging module, the beam splitting the incident light source to a first direction via the mirror unit Projecting and directing the reflected light source output by the mirror unit toward a second direction The objective lens unit projects. The wide-angle image capturing device according to any one of claims 1 to 3, wherein the annular mirror of the mirror unit has a hollow trapezoidal shape. The wide-angle image capturing device according to claim 4, wherein the objective lens unit is an objective lens, and the photosensitive unit is a photosensitive element, and the objective lens corresponds to the photosensitive element. The wide-angle image capturing device of claim 4, wherein the objective lens unit is an objective lens, and the photosensitive unit comprises a plurality of photosensitive elements arranged in an array on the same plane. The wide-angle image capturing device of claim 4, wherein the objective lens unit comprises a plurality of objective lenses, and the photosensitive unit comprises a plurality of photosensitive elements, each objective lens corresponding to each photosensitive element, and the photosensitive elements are Arranged in an array on the same plane. The wide-angle image capturing device of claim 4, wherein the light emitting element is a light emitting diode. A wide-angle image capturing device receives a light source, and the wide-angle image capturing device comprises: a casing having an accommodating space; a mirror unit disposed in the accommodating space and widely receiving the reflection by the light source a reflective light source, the mirror unit includes a meniscus lens, and an annular mirror located near one end of the meniscus lens, the annular mirror having a large aperture surface facing the meniscus lens, a small aperture surface away from the meniscus lens, and an annular reflection surface connecting the large aperture surface and the small aperture surface, and the annular reflection The mirror has an angle with respect to the optical axis of the light-emitting element; and an imaging module is disposed in the receiving space and located at one side of the mirror unit to receive the reflected light source output by the mirror unit, and The imaging module includes an objective lens unit and a photosensitive unit on one side of the objective lens unit. The objective lens unit focuses and projects the reflected light source on the photosensitive unit, and images the photosensitive unit.