TW201441752A - Camera apparatus - Google Patents

Abstract

The camera apparatus includes a base, a wide angle lens module, a first light module, and at least one second light module. The wide angle lens module disposes on the base and has a photographic range. The first light module disposes on the base and has a first light range. The at least one second light module disposes on the base. The light axial of the at least one second light module is different from the light axial of the first light module. The at least one second light module has at least one second light range. The first light range and the at least one second light range overlaps in part, so as to let the first light range and the at least one second light range coverage the photographic range.

Description

Photography device

The present invention relates to a photographing apparatus, and more particularly to a photographing apparatus having a wide-angle lens.

In general, surveillance cameras are widely used. Any occasions that need to be monitored in factory buildings, dormitories, shops, buildings or community homes, entrances and exits, or inaccessible places can be recorded immediately by surveillance cameras. For later use in tracing, depositing and other purposes. In this way, it can deter unscrupulous behaviors and avoid the harm of law and order.

In order to reduce the dead angle of surveillance camera surveillance, manufacturers have launched fisheye surveillance cameras with a large surveillance range. Although the surveillance range of the fisheye surveillance camera is large, when monitoring at night or when the light source is insufficient, the fisheye surveillance camera is often limited by the illumination angle and intensity of the internally arranged infrared light source, so that the fisheye surveillance camera cannot function properly. Monitoring functions or additional external lighting are required for proper monitoring. For example, the angle of view of a fisheye surveillance camera that is commonly available on the market can reach 170 degrees or more, and the projection angle of the infrared light source configured therein can only reach 90 to 100 degrees, and cannot cover the angle of view of the entire fisheye surveillance camera. Therefore, the center light source of the image captured by the surveillance camera is sufficient, and the image is outside the image. This is commonly known as the problem of flashlight effect.

The invention provides a photographing device, which can solve the problem that when the nighttime or the light source is insufficient, the fisheye surveillance camera is often limited by the illumination angle and intensity of the internally arranged infrared light source, so that the fisheye surveillance camera cannot function normally. Or you need additional external lighting equipment to be able to properly monitor the problem.

The photographing device disclosed in the present invention comprises a base, a wide-angle lens module, a first light source module and at least one second light source module. The wide-angle lens module is disposed on the base and has a photographic range. The first light source module is disposed on the base and has a first illumination range. At least one second light source module is disposed on the base. The optical axis direction of the at least one second light source module is different from the optical axis direction of the first light source module. The at least one second light source module has at least one second illumination range. The first illumination range at least partially overlaps with the at least one second illumination range such that the first illumination range and the at least one second illumination range encompass the viewable range.

According to the photographic device of the present invention, the optical axis direction of the first light source module is different from the optical axis direction of the second light source module, so that the first illumination range of the first light source module and the second light source module The second illumination range covers the range of the wide-angle lens module to enhance the illumination coverage and illumination distance of the light source module, thereby improving the image quality of the camera at night or in low light.

The above description of the contents of the present invention and the following embodiments The description is intended to illustrate and explain the principles of the invention, and to provide a further explanation of the scope of the invention.

10‧‧‧Photographing device

100‧‧‧Base

110‧‧‧ bottom

200‧‧‧ wide-angle lens module

300‧‧‧First light source module

310‧‧‧First board

320‧‧‧First light-emitting element

400‧‧‧Second light source module

410‧‧‧Second circuit board

420‧‧‧Second light-emitting element

430‧‧‧3rd light-emitting element

500‧‧‧ Cover

600‧‧‧reflector

L1, L2‧‧‧ optical axis

θ 1, θ 2, θ 3‧‧‧ illumination angle

θ a, θ b‧‧‧ angle between the optical axis and the bottom surface

R1, R2, R3‧‧‧ illumination range

C‧‧‧ 可 可

Fig. 1 is a perspective view showing a cover body of a photographing apparatus according to a first embodiment of the present invention, which is indicated by a broken line.

Figure 2 is a schematic cross-sectional view of Figure 1.

Fig. 3 is a schematic cross-sectional view showing the illumination range of the light source module and the photographable range of the wide-angle lens module in the photographing apparatus of Fig. 2.

Fig. 4 is a schematic cross-sectional view showing the optical axis direction of the light source module in the photographing apparatus of Fig. 2.

Fig. 5 is a perspective view showing a cover body of a photographing apparatus according to a second embodiment of the present invention, which is indicated by a broken line.

Please refer to Figures 1 to 4. Fig. 1 is a perspective view showing a cover body of a photographing apparatus according to a first embodiment of the present invention, which is indicated by a broken line. Fig. 2 is a schematic cross-sectional view of Fig. 1. Fig. 3 is a schematic cross-sectional view showing the illumination range of the light source module and the photographable range of the wide-angle lens module in the photographing apparatus of Fig. 2. Fig. 4 is a schematic cross-sectional view showing the optical axis direction of the light source module in the photographing apparatus of Fig. 2.

The photographic device 10 of the embodiment includes a pedestal 100, a wide-angle lens module 200, a first light source module 300, and four second light source modules 400. And a cover 500. The base 100 has a bottom surface 110.

The wide-angle lens module 200 is disposed on the base 100 and has a photographable range C. The imaging angle of the wide-angle lens module 200 is, for example, 170 degrees, but is not limited thereto. In this embodiment, the wide-angle lens module 200 is a fisheye lens and is used to monitor objects in the range of 1 meter to 5 meters.

The first light source module 300 includes a first circuit board 310 and a plurality of first light emitting elements 320. The first circuit board 310 is disposed on the susceptor 100 and surrounds the wide-angle lens module 200. The first light emitting elements 320 are electrically connected to the first circuit board 310. Each of the first light-emitting elements 320 has a first illumination angle θ 1 and a corresponding first illumination range R1. The first illumination ranges R1 of the first light-emitting elements 320 at least partially overlap each other to form a first illumination range. In the embodiment, the first illuminating element 320 is an infrared illuminating diode, and the first illuminating angle θ 1 of the first illuminating element 320 is exemplified by 120 degrees, but is not limited thereto. In addition, in an embodiment, the first light-emitting element 320 is disposed under the wide-angle lens module 200 to effectively prevent light from entering the wide-angle lens module 200 to cause light leakage.

Each of the second light source modules 400 includes a second circuit board 410 , a second light emitting element 420 , and a third light emitting element 430 . The second circuit board 410 is disposed on the susceptor 100 and located at the periphery of the first circuit board 310. The second light emitting element 420 and the third light emitting element 430 are respectively disposed and electrically connected to the second circuit board 410. The second light emitting element 420 has a second illumination angle θ 2 and a corresponding second illumination range R2. The first illumination angle θ 1 is greater than or equal to the second illumination angle Degree θ 2. In the embodiment, the first illumination angle θ 1 is equal to the second illumination angle θ 2 , but is not limited thereto. The third light emitting element 430 has a third illumination angle θ 3 and a corresponding third illumination range R3. In this embodiment, the second illumination angle θ 2 is greater than the third illumination angle θ 3 , and the third illumination angle θ 3 is smaller than the second illumination angle θ 2 or the first illumination angle θ 1 , but is not limited thereto. For example, in the embodiment, the second illuminating element 420 and the third illuminating element 430 may be infrared illuminating diodes, and the second illuminating angle θ 2 of the second illuminating element 420 is exemplified by 120 degrees. The third illumination angle θ 3 of the light-emitting element 430 is exemplified by 30 degrees, but is not limited thereto. The use of the third light-emitting element 430 with the third illumination angle θ 3 of 30 degrees will help concentrate the brightness of the third light-emitting element 430 and increase the illumination distance of the third light-emitting element 430. In this embodiment, the second illumination range R2 and the third illumination range R3 of the second light source module 400 at least partially overlap each other to form a second illumination range. In this embodiment, the second light source module 400 includes the second light emitting element 420 and the third light emitting element 430, but is not limited thereto. In other embodiments, the second light source module 400 may only include The second light-emitting element 420 has a larger illumination angle.

The cover 500 is disposed on the base 100, and the cover 500 and the base 100 cover the wide-angle lens module 200, the first light source module 300, and the at least one second light source module 400.

It should be noted that, as shown in FIG. 4 , the optical axis direction of the first light source module 300 is different from the optical axis direction of the second light source module 400 . Further, the optical axis L1 of the first light-emitting element 320 and the bottom surface 110 are away from the wide-angle lens The angle θ a of the head module 200 side is different from the angle θ b between the optical axis L2 of the second light-emitting element 420 and the third light-emitting element 430 and the bottom surface 110 away from the wide-angle lens module 200 side. For example, the angle θ a between the optical axis L1 of the first light source module 300 and the bottom surface 110 is 90 degrees, and the angle θ b between the optical axis L2 of the second light source module 400 and the bottom surface 110 is 45 degrees, so that the first The angle θ a between the optical axis L1 of the light source module 300 and the bottom surface 110 is greater than the angle θ b between the optical axis L2 of the second light source module 400 and the bottom surface 110 . In this way, the first illumination range of the first light source module 300 can cover the central area of the visible range C, and each second illumination range of each of the second light source modules 400 covers the edge area of the visible range C. Since the second light source module 400 of the present embodiment is provided with the third light-emitting element 430 with relatively concentrated brightness, it will help to improve the brightness of the edge area, thereby improving the imaging of the photographing device 10 at night or in low light. quality.

In the present embodiment, since the imaging distance of the wide-angle lens module 200 is set to capture an item other than 1 meter, the imaging distance of the embodiment is 1 to 5 meters. Therefore, each light source module can set the first illumination range and each of the second illumination ranges to overlap each other, for example, one meter away from the lens, so as to cover the range of the wide-angle lens module 200, and further reduce the light source module. The number reduces the unnecessary loss of light energy and maximizes its utility.

Please refer to Figure 5. Fig. 5 is a perspective view showing a cover body of a photographing apparatus according to a second embodiment of the present invention, which is indicated by a broken line. This embodiment is similar to the embodiment of Fig. 1 described above, and therefore only the differences will be described.

The embodiment further includes a plurality of reflectors 600 respectively disposed on the first circuit board 310 and each of the second circuit boards 410, and each of the first light-emitting elements 320, the second light-emitting elements 420, and each of the first The three light-emitting elements 430 are surrounded to further concentrate the light emitted by the light-emitting elements to increase the brightness of the light-emitting elements and to increase the illumination distance of the light-emitting elements. However, it is not limited thereto. In other embodiments, each of the reflective members 600 may be disposed only on each of the first light emitting elements 320. In an embodiment, the reflective member 600 can be a light cup.

According to the photographic device of the present invention, the optical axis direction of the first light source module is different from the optical axis direction of the second light source module, so that the first illumination range of the first light source module and the second light source module The second illumination range covers the range of the wide-angle lens module to enhance the illumination coverage and illumination distance of the light source module, thereby improving the image quality of the camera at night or in low light, and also having different illumination angles. The arrangement of the light-emitting elements can not only improve the illumination coverage of the light source module, but also take into account the uniformity of the overall illumination of the light source module, and effectively solve the problem of the flashlight effect generated in the prior art.

Although the embodiments of the present invention are disclosed above, it is not intended to limit the present invention, and those skilled in the art, regardless of the spirit and scope of the present invention, the shapes, configurations, and features described in the scope of the present application. And the number of modifications may be made, and the scope of patent protection of the present invention shall be determined by the scope of the patent application attached to the specification.

10‧‧‧Photographing device

110‧‧‧ bottom

200‧‧‧ wide-angle lens module

300‧‧‧First light source module

310‧‧‧First board

320‧‧‧First light-emitting element

400‧‧‧Second light source module

410‧‧‧Second circuit board

420‧‧‧Second light-emitting element

430‧‧‧3rd light-emitting element

500‧‧‧ Cover

Claims (11)

A photographic device comprising: a pedestal; a wide-angle lens module disposed on the pedestal and having a photographic range; a first light source module disposed on the pedestal and having a first illumination range; The at least one second light source module is disposed on the pedestal, and the optical axis direction of the at least one second light source module is different from the optical axis direction of the first light source module, and the at least one second light source module has at least one a second illumination range, the first illumination range at least partially overlapping the at least one second illumination range, such that the first illumination range and the at least one second illumination range encompass the viewable range. The photographic device of claim 1, wherein the pedestal has a bottom surface, and an angle between an optical axis of the first light source module and the bottom surface is different from an optical axis of the at least one second light source module The angle between the bottom faces. The photographic device of claim 2, wherein an angle between an optical axis of the first light source module and the bottom surface is greater than a distance between the optical axis of the at least one second light source module and the bottom surface away from the wide-angle lens module side. Angle. The photographic device of claim 2, wherein an angle between the optical axis of the at least one second light source module and the bottom surface away from the wide-angle lens module side is approximately 45 degrees. The photographic device of claim 1, wherein the first light source module comprises The first light-emitting element has at least one first illumination angle, so that the first light source module has the first illumination range, and the at least one second light source module includes at least one The second illuminating component, each of the at least one second illuminating component has at least one second illumination angle, so that the at least one second light source module has the at least one second illumination range. The photographic device of claim 5, wherein the at least one first illuminating element has the at least one first illumination angle greater than or equal to the at least one second illumination angle of the at least one second illuminating element. The photographic device of claim 5, wherein the at least one second light source module further comprises at least one third illuminating element, the at least one second illuminating element having an illumination angle different from the illumination angle of the at least one third illuminating element The at least one second illumination range is composed of a range covered by the illumination angles of the at least one second illuminating element and the at least one third illuminating element. The photographic device of claim 1, wherein the number of the at least one second light source module is two, and the two second light source modules respectively have two second illumination ranges, and the two second illuminations At least some of the scope overlaps each other. The photographic device of claim 8, wherein the two second light source modules are arranged along a circumference of the wide-angle lens module such that the second illumination ranges cover the photographic range. The photographic device of claim 1, further comprising a cover disposed on the base, the cover and the base covering the wide-angle lens module, the first light source module, and the at least one Two light source modules. The photographic device of claim 1, wherein the wide-angle lens module is a fisheye lens.