Dome camera with shading assembly

Abstract

The utility model provides a dome camera, comprising a housing comprising an upper housing and a lower housing; the hemispherical transparent cover is assembled on the upper shell body; the lens assembly is arranged in the semispherical transparent cover, and can rotate horizontally and rotate in a pitching manner relative to the shell; the lens assembly comprises a semi-spherical transparent cover, the shading assembly is arranged between the lens assembly and the semi-spherical transparent cover, the shading assembly comprises a fixing arm and a fixing ring, the radial direction of the fixing ring is perpendicular to the optical axis direction of the lens assembly, the fixing arm extends in the axial direction of the fixing ring, and the fixing ring is arranged in the semi-spherical transparent cover. A buffer component is arranged at one end, opposite to the hemispherical transparent cover, of the fixing ring; the fixing arm is provided with a plurality of different fixing positions in the axial direction of the fixing ring, and the shading assembly and the hemispherical transparent cover have different distances in the optical axis direction of the lens assembly corresponding to the fixing positions of the fixing arm.

Description

Technical Field

[0001] The utility model relates to the field of camera equipment, in particular to a hemispherical camera. Background Art

[0002] Some hemispherical products on the market lack fill lights, and the image quality is reduced. Some products are designed with fill lights, but in order to avoid the reflection of the fill lights on the transparent cover affecting the image quality, a relatively expensive transparent cover is used. It is necessary to develop a hemispherical camera that can avoid the above problems existing in the prior art. Utility Model Content

[0003] In one embodiment of the utility model, a hemispherical camera is provided, comprising:

[0004] A housing, comprising an upper housing and a lower housing;

[0005] A hemispherical transparent cover, the hemispherical transparent cover is assembled on the lower shell;

[0006] A lens assembly, wherein the lens assembly is installed in the hemispherical transparent cover and can rotate horizontally and in elevation relative to the housing; and

[0007] a shading assembly, the shading assembly being arranged between the lens assembly and the hemispherical transparent cover, the shading assembly comprising a fixed arm and a fixed ring, the radial direction of the fixed ring being perpendicular to the optical axis direction of the lens assembly, the fixed arm extending along the axial direction of the fixed ring, and a buffer component being arranged at one end of the fixed ring opposite to the hemispherical transparent cover;

[0008] The fixing arm has a plurality of different fixing positions in the axial direction of the fixing ring, and corresponding to the fixing positions of the fixing arm, the shading assembly and the hemispherical transparent cover have different spacings in the optical axis direction of the lens assembly.

[0009] In one embodiment, the inner diameter of the fixing ring is matched with the outer diameter of the lens assembly.

[0010] In one embodiment, the fixing ring comprises:

[0011] A first annular member, the first annular member being integrally formed with the fixed arm; and

[0012] The buffer component is detachably connected to the first annular component, and the buffer component is silica gel or foam.

[0013] In one embodiment, the fixing arm moves to the different fixing positions in response to an external force along the optical axis direction of the lens assembly.

[0014] In one embodiment, the fixed arm is tightly connected to the electromagnetic valve assembly, and the electromagnetic valve assembly applies a force along the optical axis direction of the lens assembly to the fixed arm to drive the fixed arm to different fixed positions.

[0015] In one embodiment, the solenoid valve assembly is fastened to the upper housing and is relatively stationary.

[0016] In one embodiment, the fixed arm is fastened to a linear motor assembly, and the linear motor assembly applies a force along the optical axis direction of the lens assembly to the fixed arm to drive the fixed arm to different fixed positions.

[0017] In one embodiment, the linear motor assembly is fastened to the upper housing and is relatively stationary.

[0018] In one embodiment, the lens assembly is rotated to a predetermined azimuth angle via the horizontal rotation and / or the pitch rotation.

[0019] During the horizontal rotation and / or the pitch rotation of the lens assembly, there is a gap between the light shielding assembly and the inner wall of the hemispherical transparent cover;

[0020] When the lens assembly is rotated to the predetermined azimuth angle, the light shielding assembly abuts against the inner wall of the hemispherical transparent cover.

[0021] In one embodiment, the upper housing includes a fill light, and the light shielding assembly abuts against the inner wall of the hemispherical transparent cover to block the light emitted from the fill light and entering the housing from entering the lens assembly.

[0022] It can be seen from the above technical solution that the lens assembly 40 is completely arranged inside the body assembly formed by the combination of the housing 10 and the hemispherical transparent cover 20, and the body assembly completely wraps the lens assembly 40. The housing 10 includes an upper housing 10a and a lower housing 10b, the housing 10 defines a first central axis LP extending in the vertical direction, the bottom surface of the lower housing 10b has a through hole, the hemispherical transparent cover 20 is fixed to the through hole and protrudes from the lower surface of the lower housing 10b, and the hemispherical transparent cover 20 and the housing 10 are combined to form a closed cavity for installing the lens assembly 40. The mainboard assembly 50 is installed in the housing 10, wherein the hemispherical transparent cover 20 is formed of a transparent material, and the lens assembly 40 is photographed through the hemispherical transparent cover 20. The housing 10 is usually formed of an opaque material, and the mainboard assembly 50, a bracket and a motor for supporting and driving the lens assembly 40 to rotate, etc. are installed in the housing 10.

[0023] The optical axis direction of the lens assembly 40 is the second optical axis direction LR, which can be achieved by rotating the lens assembly 40 along three axes, namely, a panning direction (P direction), a pitching direction (T direction), and a rolling direction (R direction). The three-axis rotation of the lens assembly 40 can realize shooting at different angles of the hemispherical camera.

[0024] The lens assembly 40 includes a fill light installed on the lens housing 41, and the fill light 43 is used to provide a light source for the image area of ​​the lens, so as to provide a supplementary light source for the lens assembly 40 under the condition of insufficient ambient light. The emitted light of the fill light 43 will enter the lens 42 through the reflection of the hemispherical transparent cover 20, thereby causing the captured image to be whitish. In this embodiment, a light shielding component 44 is provided between the lens 42 and the fill light 43, which is isolated between the lens 42 and the fill light 43 in the radial direction of the lens housing 41, thereby shielding the emitted light of the fill light 43 from directly entering the lens 42. Further, the light shielding component 44 has different fixed positions to change the gap between the hemispherical transparent cover 20 and the second optical axis direction LR, thereby improving the image quality by shielding the reflected light of the emittance light of the fill light 43 on the hemispherical transparent cover 20 from entering the lens 42. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The following drawings are only used to illustrate and explain the present invention, and do not limit the scope of the present invention.

[0026] Figure 1 It is a structural schematic diagram of a hemispherical camera of the utility model.

[0027] Figure 2 It is an exploded schematic diagram of the hemispherical camera of the utility model.

[0028] Figure 3a and Figure 3b It is a schematic diagram of the first fixed position and the second fixed position of the shading component in the hemispherical camera of the utility model.

[0029] Figure 4 It is a partial exploded view of the first embodiment of the hemispherical camera of the utility model.

[0030] Figure 5 It is a partial exploded view of the first embodiment of the hemispherical camera of the utility model.

[0031] Figure 6 It is a partial exploded view of the second embodiment of the hemispherical camera of the utility model. DETAILED DESCRIPTION

[0032] In order to have a clearer understanding of the technical features, purposes and effects of the utility model, the specific implementation of the utility model is now described with reference to the accompanying drawings, in which the same reference numerals represent the same parts.

[0033] In this document, “exemplary” means “serving as an example, instance or illustration”, and any diagram or implementation described in this document as “exemplary” should not be interpreted as a more preferred or more advantageous technical solution.

[0034] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked.

[0035] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0036] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0037] In this article, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use. Unless otherwise specified, the numerical ranges herein include not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0038] Example embodiments will now be described more fully with reference to the accompanying drawings.

[0039] In order to solve the problems in the prior art, the utility model provides a hemispherical camera, in which a lens assembly and a rotating bracket for driving the lens assembly to rotate are all installed in a hemispherical transparent cover, and include a fill light for the lens assembly and a shading assembly isolated between the fill light and the lens, which can not only meet the angle adjustment requirements of the camera product, but also improve the image quality of the hemispherical camera.

[0040] like Figures 1 to 5 As shown, one embodiment of the utility model provides a hemispherical camera, comprising:

[0041] The housing 10 defines a first central axis LP extending in a vertical direction, and includes an upper housing 10a and a lower housing 10b;

[0042] A hemispherical transparent cover 20, which is fixed to the lower shell 10b of the shell 10 and is located below the lower shell 10b;

[0043] The lens assembly 40 has a second optical axis direction LR, and the lens assembly 40 can rotate horizontally and in pitch relative to the housing 10;

[0044] A light shielding assembly 44, which is installed between the lens assembly 40 and the hemispherical transparent cover 20, wherein the light shielding assembly 44 includes a pair of fixed arms 444 extending along the second optical axis direction LR, and a fixed ring 442 supported by the fixed arms 444, wherein the radial direction of the fixed ring 442 is perpendicular to the second optical axis direction LR, and the axial direction is consistent with the second optical axis direction LR, and a buffer component 442 is provided on a surface of the fixed ring 442 facing the hemispherical transparent cover 20;

[0045] The fixing arm 444 has a plurality of different fixing positions in the axial direction of the fixing ring 442 . Corresponding to the different fixing positions of the fixing arm 444 , there are different spacings between the shading component 44 and the hemispherical transparent cover 20 .

[0046] In this embodiment, the lens assembly 40 is completely disposed inside the body assembly formed by the combination of the housing 10 and the hemispherical transparent cover 20, and the body assembly completely wraps the lens assembly 40. The housing 10 includes an upper housing 10a and a lower housing 10b, the housing 10 defines a first central axis LP extending in a vertical direction, the bottom surface of the lower housing 10b has a through hole, the hemispherical transparent cover 20 is fixed to the through hole and protrudes from the lower surface of the lower housing 10b, and the hemispherical transparent cover 20 and the housing 10 are combined to form a closed cavity in which the lens assembly 40 is installed. The mainboard assembly 50 is installed in the housing 10, wherein the hemispherical transparent cover 20 is formed of a transparent material, and the lens assembly 40 is photographed through the hemispherical transparent cover 20. The housing 10 is generally formed of an opaque material, and the mainboard assembly 50, a bracket and a motor for supporting and driving the lens assembly 40 to rotate, etc. are installed in the housing 10.

[0047] The optical axis direction of the lens assembly 40 is the second optical axis direction LR, which can be achieved by rotating the lens assembly 40 along three axes, namely, a panning direction (P direction), a pitching direction (T direction), and a rolling direction (R direction). The three-axis rotation of the lens assembly 40 can realize shooting at different angles of the hemispherical camera.

[0048] The housing 10 is mounted on a carrier, usually at a substantially horizontal position (e.g., a ceiling), so that the first central axis LP extends in a vertical direction. The rotation in the P direction corresponds to the horizontal rotation of the lens assembly 40, i.e., panning, the rotation in the T direction corresponds to the pitch rotation of the lens assembly 40, and the rotation in the R direction corresponds to the rotation of the lens assembly 40 around its second optical axis direction LR.

[0049] The present embodiment provides a light shielding assembly 44 installed between the lens assembly 40 and the hemispherical transparent cover 20, which is isolated between the lens assembly 40 and the hemispherical transparent cover 20 in the radial direction perpendicular to the second optical axis LR, thereby preventing the light inside the housing 10 from entering the lens assembly 40 via the reflection of the hemispherical transparent cover 20. Further, the light shielding assembly 44 includes a fixed arm 444 with different fixed positions in the second optical axis direction LR, and the gap between the light shielding assembly 44 and the hemispherical transparent cover 20 can be changed corresponding to the fixed position of the fixed arm 444, thereby improving the image quality by blocking the light reflected on the inner surface of the hemispherical transparent cover 20 from entering the lens assembly 40.

[0050] The fixing ring 442 is formed in a ring shape and is sleeved on the outer periphery of the lens assembly 40. In a specific example, the inner diameter of the fixing ring 442 is adapted to the outer diameter of the lens assembly 40, so that the fixing ring 442 can be adjusted along the direction of the second optical axis LR corresponding to the fixed position of the fixing arm 444.

[0051] In a specific example, the lens assembly 40 includes:

[0052] a lens housing 41 extending axially along a second optical axis direction LR; and

[0053] The lens 42 is installed in the lens housing 41 , and the front end of the lens 42 is exposed to the lens hole at the front end of the lens housing 41 .

[0054] The light shielding assembly 44 is installed in the lens housing 41, and the fixing ring 442 surrounds the lens 42, and the inner diameter of the fixing ring 442 matches the outer diameter of the lens 42. The lens housing 41 has a gap with the lens 42, and the fixing ring 442 is arranged in the gap.

[0055] In this example, the lens assembly 40 is installed in the housing 10 via the horizontal rotation bracket 30. Specifically, the horizontal rotation bracket 30 is installed on the inner wall of the upper housing 10a and can rotate around the first central axis LP to drive the lens assembly 40 to rotate horizontally around the first central axis LP relative to the housing 10 and the hemispherical transparent cover 20. Specifically, the horizontal rotation bracket 30 may have a pair of arms for supporting the lens assembly 40 to form a U-shaped bracket with an opening facing downward, the pair of arms extending along the direction of the first central axis LP, and the lens assembly 40 is rotatably installed between the pair of arms. Among them, the bottom end of each arm may have a rotation hole, the pair of rotation holes define a second central axis LT extending in the horizontal direction, and the lens assembly 40 is installed in the rotation hole to pitch and rotate around the second central axis LT relative to the horizontal rotation bracket 30, so as to pitch and rotate relative to the hemispherical transparent cover 20. The lens assembly 40 itself may have the degree of freedom to rotate around the second optical axis LR. Therefore, no matter what kind of carrier the housing 10 is mounted on, the relative relationship of the lens assembly 40 in the P direction, the T direction, and the R direction remains unchanged, but the direction relative to the ground changes.

[0056] The horizontally rotating bracket 30 is provided with a rotating hole and a rotating protrusion and a rotating groove. Both sides of the outer shell of the lens assembly 40 are provided with protruding shafts. The protruding shafts extend horizontally along the second center axis LT and extend into the rotating hole to cooperate with the rotation thereof. The protruding shafts are the second center axis LT. The lens assembly 40 is rotatably connected to the horizontally rotating bracket 30 around the second center axis LT. The second center axis LT is perpendicular to the first center axis LP. When the lens assembly 40 rotates around the second center axis LT, it drives the lens assembly to rotate in the T direction around the second center axis LT, thereby realizing the T direction rotation of the lens assembly 30.

[0057] In one example, the lens assembly 40 includes:

[0058] A fill light 43, which is mounted on the lens housing 41, and the light emitted by the fill light 43 is used to illuminate the image area of ​​the lens 42;

[0059] The light shielding assembly 44 is mounted on the lens housing 41 and is located between the lens 42 and the fill light 43 in the radial direction of the lens housing 41 .

[0060] The lens assembly 40 includes a fill light installed on the lens housing 41, and the fill light 43 is used to provide a light source for the image area of ​​the lens, so as to provide a supplementary light source for the lens assembly 40 under the condition of insufficient ambient light. The emitted light of the fill light 43 will enter the lens 42 through the reflection of the hemispherical transparent cover 20, thereby causing the captured image to be whitish. In this embodiment, a light shielding component 44 is provided between the lens 42 and the fill light 43, which is isolated between the lens 42 and the fill light 43 in the radial direction of the lens housing 41, thereby shielding the emitted light of the fill light 43 from directly entering the lens 42. Further, the light shielding component 44 has different fixed positions to change the gap between the hemispherical transparent cover 20 and the second optical axis direction LR, thereby improving the image quality by shielding the reflected light of the emittance light of the fill light 43 on the hemispherical transparent cover 20 from entering the lens 42.

[0061] Specifically, the fixed arm 444 has Figure 3a The first fixed position shown is located in the lens housing 41 and the front end of the fixing ring 442 is flush with the lens hole, and

[0062] like Figure 3b The front end of the fixing ring 442 is shown protruding from the lens hole of the lens housing 41 and abutting against the second fixing position of the inner surface of the hemispherical transparent cover 20 .

[0063] The first fixed position and the second fixed position may serve as two extreme positions of the fixed arm, and a plurality of preset fixed positions corresponding to the fixed arm 444 may be set between the two extreme positions.

[0064] It is understandable that, since the lens assembly 40 can be rotated and adjusted in the P direction, T direction, and R direction in the hemispherical transparent cover 20, there must be a gap between the front end of the lens assembly 40, that is, the front end of the lens housing 41, and the hemispherical transparent cover 20. If there is no light shielding assembly 44, the reflected light of the fill light on the inner surface of the hemispherical transparent cover 20 must have the possibility of entering the lens 42.

[0065] When the shading component 44 is Figure 3b When the front end of the fixing ring 442 shown in the figure abuts against the inner surface of the hemispherical transparent cover 20, in the radial direction, the shading component 44 is located between the fill light 43 and the lens 42, and at the same time completely blocks the light path between the fill light 43 and the lens 42, which can effectively prevent the light emitted by the fill light 43 from entering the lens 42.

[0066] When the lens assembly 40 can be rotated and adjusted in the P direction, T direction, and R direction in the hemispherical transparent cover 20, the interference between the shading assembly 44 and the inner surface of the hemispherical transparent cover 20 will cause friction on the inner surface of the hemispherical transparent cover 20. Therefore, the shading assembly 44 also has a first fixed position that is out of contact with the hemispherical transparent cover 20, so that there is a gap between the front end of the shading assembly 44 and the inner surface of the hemispherical transparent cover 20 so as not to affect the rotation adjustment of the lens assembly 40 in the hemispherical transparent cover 20.

[0067] Optionally, since the fill light 43 may not be turned on when the lens assembly 40 is rotated and adjusted, there is no need for the shading assembly 44 to block the reflected light of the fill light 43.

[0068] In one specific example, the fixing ring 442 includes:

[0069] A first annular member 443, wherein the first annular member 443 and the fixed arm 444 are integrally formed;

[0070] The buffer component 445 is detachably connected to the first annular member.

[0071] The diameter of the lens 42 is smaller than the diameter of the lens hole. The first annular member 443 is formed into a ring coaxially arranged with the lens 42 . The first annular member 443 is installed in the gap between the lens 42 and the lens hole.

[0072] The first annular member 443 is clearance-fitted with the lens hole and the lens 42 , and the movement of the first annular member 443 along the second optical axis direction LR will not interfere with the lens hole and the lens 42 .

[0073] The buffer component 445 is mounted on the front surface of the first annular member 443 , ie, the side facing the inner surface of the hemispherical transparent cover 20 .

[0074] The buffer component 445 is made of a soft, elastically deformable material, such as silica gel or foam. The front end surface of the buffer component 445 can be formed into an arc edge or a chamfered edge for forming a close fit with the arc inner surface of the hemispherical transparent cover 20.

[0075] In order to ensure the light shielding quality, the thickness of the buffer component 445 or the sum of the thickness of the buffer component 445 and the first ring member 443 is greater than or equal to the gap between the lens 42 and the hemispherical transparent cover 20 .

[0076] That is, the distance between the first fixed position and the second fixed position should be less than or equal to the thickness of the buffer component 445, or less than or equal to the sum of the thicknesses of the buffer component 445 and the first annular member 443. The thickness direction is the second optical axis direction LR. In this case, when the fixed arm 444 moves to the second fixed position, the fixed ring 445 is still completely shielded between the lens 42 and the fill light 43 in the radial direction to prevent the light of the fill light 43 from directly entering the lens 42.

[0077] Furthermore, the lens housing 41 includes:

[0078] A fill light slot 411, the fill light slot 411 is located outside the lens hole, and the fill light slot 411 has a fill light slot bottom surface located at the rear side of the lens hole in the second optical axis direction LR, and a fill light slot side wall 441a extending along the second optical axis direction LR between the fill light slot bottom surface 441 and the light shielding assembly 44;

[0079] The fill light 43 is installed on the bottom surface of the fill light slot.

[0080] In a specific example, the shading assembly 44 includes a driving component 441, which is fastened to a fixed arm 444 to drive the fixed arm 444 to move to different fixed positions.

[0081] Specifically, the hemispherical camera of this embodiment includes:

[0082] The lens driving assembly includes a horizontal driving motor for driving the horizontal rotating bracket 30 to rotate horizontally around the first central axis LP relative to the hemispherical transparent cover 20, and a pitch driving motor for driving the lens assembly 40 to pitch and rotate relative to the horizontal rotating bracket 30 around the second central axis LT;

[0083] Among them, the lens driving assembly and the driving component 441 are started selectively.

[0084] As mentioned above, in order to prevent the lens assembly 40 from causing friction on the inner surface of the hemispherical transparent cover 20 due to the contact between the shading assembly 44 and the inner surface of the hemispherical transparent cover 20 when the hemispherical transparent cover 20 is rotated, the lens driving assembly and the driving component 441 are selectively started. That is, when the lens assembly 40 is rotated in any direction, the shading assembly 44 must not be able to switch the fixed position, or when the shading assembly 44 is switching the fixed position, the lens assembly 40 must not be able to rotate.

[0085] The selective activation of the lens driving assembly and the driving component 441 means that when any one or more of the lens driving assemblies are activated, the driving component 441 will not be in the activated state.

[0086] Optionally, the driving component 441 is a solenoid valve assembly, and the solenoid valve assembly drives the shading assembly 44 to switch between the first fixed position and the second fixed position;

[0087] The closing of the driving component 441 corresponds to the first fixed position, and the opening of the driving component 441 corresponds to the second fixed position.

[0088] The electromagnetic valve is used to drive the shading assembly 44 to switch between the first fixed position and the second fixed position, and the opening or closing of the electromagnetic valve necessarily corresponds to the position of the shading assembly 44. Specifically, when the electromagnetic valve is closed, the fixed arm 444 is in the first fixed position, and there is a gap between the front end of the fixed ring and the inner surface of the hemispherical transparent cover 20. At this time, the lens drive assembly can be started, and the lens assembly 40 can be rotated and adjusted. At this time, the buffer component 445 will not contact the inner surface of the hemispherical transparent cover 20. When the electromagnetic valve is opened, the fixed arm 444 is in the second fixed position, and the buffer component 445 contacts the inner surface of the hemispherical transparent cover 20. At this time, the lens drive assembly cannot be started, and the lens assembly 40 cannot be rotated and adjusted. At the same time, the fill light 43 can be turned on, and the shading assembly 44 is used to block the reflected light of the fill light 43 on the inner surface of the hemispherical transparent cover 20 from entering the lens 42.

[0089] In this example, the solenoid valve assembly is fastened to the upper housing and relatively stationary, and the solenoid valve assembly is used to output a force along the second optical axis direction LR of the lens assembly, rather than directly driving the fixed arm 444 to move.

[0090] It can be seen from the above technical solution that when the shading component 44 in the lens assembly 40 does not need to adjust the angle for normal shooting, the shading component 44, especially the buffer component 445, is in contact with the hemispherical transparent cover 20. When the lens 42 needs to be adjusted in the T direction and the P direction, the shading component 44 moves along the second optical axis direction LR to the first fixed position. The shading component 44 does not contact the hemispherical transparent cover 20, forming a gap to prevent the shading ring from scratching the hemispherical transparent cover when moving in the P direction or the T direction, thereby affecting the image quality.

[0091] like Figure 6 As shown, the utility model also provides a hemispherical camera, comprising:

[0092] The housing 10 defines a first central axis LP extending in a vertical direction;

[0093] A hemispherical transparent cover 20, which is fixed to the housing 10 and protrudes from the lower surface of the housing 10;

[0094] A horizontal rotation bracket 30, which is rotatably mounted in the housing 10 to horizontally rotate around the first central axis LP relative to the hemispherical transparent cover 20;

[0095] The lens assembly 40 has a second optical axis direction LR. The lens assembly 40 is rotatably mounted on the horizontal rotation bracket 30 around a second central axis LT extending along the horizontal direction to adjust the second optical axis direction LR in pitch;

[0096] The lens assembly 40 comprises:

[0097] A lens housing 41, wherein the lens housing 41 extends axially along a second optical axis direction LR;

[0098] A lens 42, wherein the lens 42 is installed in the lens housing 41, and a front end of the lens 42 is exposed to a lens hole at a front end of the lens housing 41;

[0099] A fill light 43, which is mounted on the lens housing 41, and the light emitted by the fill light 43 is used to illuminate the image area of ​​the lens 42;

[0100] The shading component 44 is installed in the lens housing 41 and is located between the lens 42 and the fill light 43 in the radial direction of the lens housing 41. The shading component 44 includes a driving component 441. The driving component 441 outputs a driving force along the second optical axis direction LR to change the gap between the front end of the shading component 44 and the hemispherical transparent cover 20.

[0101] The driving component 441 is a linear motor assembly, and the linear motor assembly drives the shading assembly 44 to move between a first fixed position and a second fixed position.

[0102] The start-up state of the lens driving assembly does not correspond to the second fixed position.

[0103] The linear motor assembly is used to drive the shading assembly 44 to move between the first fixed position and the second fixed position, so the opening or closing of the linear motor assembly necessarily corresponds to the motion state of the shading assembly 44. Specifically, when the linear motor is turned off, the shading assembly 44 is in the first fixed position or the second fixed position. When the linear motor is turned on, the shading assembly 44 is in any position between the first fixed position and the second fixed position, and is in a motion state.

[0104] When the fixed arm 444 is in the first fixed position, the fixed arm 444 is in the first fixed position, and there is a gap between the front end of the fixed ring and the inner surface of the hemispherical transparent cover 20. At this time, the lens driving assembly can be started, and the lens assembly 40 can be rotated and adjusted. At this time, the buffer component 445 will not contact the inner surface of the hemispherical transparent cover 20. When the fixed arm 444 is in the second fixed position, the buffer component 445 contacts the inner surface of the hemispherical transparent cover 20. At this time, the lens driving assembly cannot be started, and the lens assembly 40 cannot be rotated and adjusted. At the same time, the fill light 43 can be turned on, and the light shielding component 44 is used to block the reflected light of the fill light 43 on the inner surface of the hemispherical transparent cover 20 from entering the lens 42.

[0105] The linear motor assembly can be implemented as a lead screw motor. The linear motor assembly is fastened to the upper housing 10a and relatively stationary, and the fixed arm 444 is directly connected to the output end of the linear motor assembly, which is driven by the output shaft of the linear motor assembly to move linearly along the second optical axis direction LR to drive the fixed arm 444 to different fixed positions.

[0106] It can be seen from the above technical solution that when the shading component 44 in the lens assembly 40 is not required to adjust the angle for normal shooting, the shading component 44, especially the buffer component 445, is in contact with the hemispherical transparent cover 20. When the lens 42 needs to be adjusted in the T direction and the P direction, the shading component 44 moves along the second optical axis direction LR to the first fixed position. The shading component 44 is not in contact with the hemispherical transparent cover 20, forming a gap to prevent the shading ring from scratching the hemispherical transparent cover when moving in the P direction or the T direction, thereby affecting the image quality.

[0107] In this embodiment, the lens assembly 40 is completely disposed inside the body assembly formed by the combination of the housing 10 and the hemispherical transparent cover 20, and the body assembly completely wraps the lens assembly 40. The housing 10 includes an upper housing 10a and a lower housing 10b, the housing 10 defines a first central axis LP extending in a vertical direction, the bottom surface of the lower housing 10b has a through hole, the hemispherical transparent cover 20 is fixed to the through hole and protrudes from the lower surface of the lower housing 10b, and the hemispherical transparent cover 20 and the housing 10 are combined to form a closed cavity in which the lens assembly 40 is installed. The mainboard assembly 50 is installed in the housing 10, wherein the hemispherical transparent cover 20 is formed of a transparent material, and the lens assembly 40 is photographed through the hemispherical transparent cover 20. The housing 10 is generally formed of an opaque material, and the mainboard assembly 50, a bracket and a motor for supporting and driving the lens assembly 40 to rotate, etc. are installed in the housing 10.

[0108] The optical axis direction of the lens assembly 40 is the second optical axis direction LR, which can be achieved by rotating the lens assembly 40 along three axes, namely, a panning direction (P direction), a pitching direction (T direction), and a rolling direction (R direction). The three-axis rotation of the lens assembly 40 can realize shooting at different angles of the hemispherical camera.

[0109] The lens assembly 40 includes a fill light installed on the lens housing 41, and the fill light 43 is used to provide a light source for the image area of ​​the lens, so as to provide a supplementary light source for the lens assembly 40 under the condition of insufficient ambient light. The emitted light of the fill light 43 will enter the lens 42 through the reflection of the hemispherical transparent cover 20, thereby causing the captured image to be whitish. In this embodiment, a light shielding component 44 is provided between the lens 42 and the fill light 43, which is isolated between the lens 42 and the fill light 43 in the radial direction of the lens housing 41, thereby shielding the emitted light of the fill light 43 from directly entering the lens 42. Further, the light shielding component 44 has different fixed positions to change the gap between the hemispherical transparent cover 20 and the second optical axis direction LR, thereby improving the image quality by shielding the reflected light of the emittance light of the fill light 43 on the hemispherical transparent cover 20 from entering the lens 42.

[0110] A shading assembly for a camera includes: a shading assembly, which is arranged between a lens assembly of the camera and a transparent cover of the camera; the shading assembly includes a fixed arm and a fixed ring, the radial direction of the fixed ring is perpendicular to the optical axis direction of the lens assembly, the fixed arm extends along the axial direction of the fixed ring, and silicone or foam is arranged on the end of the fixed ring opposite to the transparent cover; wherein the fixed arm has a different position in the optical axis direction of the lens assembly in the axial direction of the fixed ring relative to the transparent cover.

[0111] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model, and are not intended to limit the scope of protection of the utility model. Any equivalent implementation plans or changes that do not deviate from the technical spirit of the utility model, such as combination, division or repetition of features, should be included in the scope of protection of the utility model.

Claims

1. A hemispherical camera, characterized in that: include: A housing, comprising an upper housing and a lower housing; A hemispherical transparent cover, the hemispherical transparent cover is assembled on the lower shell; A lens assembly, the lens assembly is installed in the hemispherical transparent cover and can rotate horizontally and in pitch relative to the housing; and a shading assembly, the shading assembly being arranged between the lens assembly and the hemispherical transparent cover, the shading assembly comprising a fixed arm and a fixed ring, the radial direction of the fixed ring being perpendicular to the optical axis direction of the lens assembly, the fixed arm extending along the axial direction of the fixed ring, and a buffer component being arranged at one end of the fixed ring opposite to the hemispherical transparent cover; The fixing arm has a plurality of different fixing positions in the axial direction of the fixing ring, and corresponding to the fixing positions of the fixing arm, the shading assembly and the hemispherical transparent cover have different spacings in the optical axis direction of the lens assembly.

2. The hemispherical camera according to claim 1, characterized in that: The inner diameter of the fixing ring matches the outer diameter of the lens assembly.

3. The hemispherical camera according to claim 2, characterized in that: The fixing ring comprises: A first annular member, the first annular member being integrally formed with the fixed arm; and The buffer component is detachably connected to the first annular component, and the buffer component is silica gel or foam.

4. The hemispherical camera according to claim 1, characterized in that: The fixing arm moves to the different fixing positions in response to an external force along the optical axis direction of the lens assembly.

5. The hemispherical camera according to claim 1, characterized in that: The fixed arm is tightly connected to the electromagnetic valve assembly, and the electromagnetic valve assembly applies a force along the optical axis direction of the lens assembly to the fixed arm to drive the fixed arm to different fixed positions.

6. The hemispherical camera according to claim 5, characterized in that: The solenoid valve assembly is fastened to the upper housing and is relatively stationary.

7. The hemispherical camera according to claim 1, characterized in that: The fixed arm is tightly connected to the linear motor assembly, and the linear motor assembly applies a force along the optical axis direction of the lens assembly to the fixed arm to drive the fixed arm to different fixed positions.

8. The hemispherical camera according to claim 7, characterized in that: The linear motor assembly is fastened to the upper housing and is relatively stationary.

9. The hemispherical camera according to any one of claims 2 to 8, characterized in that: The lens assembly is rotated to a predetermined azimuth angle via the horizontal rotation and / or the pitch rotation. During the horizontal rotation and / or the pitch rotation of the lens assembly, there is a gap between the light shielding assembly and the inner wall of the hemispherical transparent cover; When the lens assembly is rotated to the predetermined azimuth angle, the light shielding assembly abuts against the inner wall of the hemispherical transparent cover.

10. The hemispherical camera according to claim 9, characterized in that: The upper shell includes a fill light, and the light shielding component abuts against the inner wall of the hemispherical transparent cover to block the light emitted from the fill light and entering the shell from entering the lens component.

11. A light shielding assembly for a camera, characterized in that: include: A light shielding component, wherein the light shielding component is arranged between the lens component of the camera and the transparent cover of the camera; The light shielding assembly comprises a fixed arm and a fixed ring, the radial direction of the fixed ring is perpendicular to the optical axis direction of the lens assembly, the fixed arm extends along the axial direction of the fixed ring, and a silicone or foam is provided at one end of the fixed ring opposite to the transparent cover; The fixing arm has a plurality of different fixing positions in the axial direction of the fixing ring, and corresponding to the fixing positions of the fixing arm, the shading assembly and the transparent cover have different spacings in the optical axis direction of the lens assembly.

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