Camera

Abstract

The utility model discloses a camera. The camera comprises a camera body, a light supplement lamp support and a light supplement lamp. The camera body comprises a lens, and the degree of the field angle of the lens is 2 theta. The light supplement lamp support is installed on the camera body and provided with the light supplement lamp. The light supplementing angle of the light supplementing lamp and the field angle of the lens form an intersection point, and the distance between the intersection point and the camera body is H2 in the direction of the angular bisector. The degree of the light supplementing angle of the light supplementing lamp is 2beta; and the distance between the light supplementing lamp and the lens is D2 along the direction perpendicular to the angular bisector, and D2 is greater than or equal to H2 * (tan (theta) + tan (beta)). Therefore, the light supplementing lamp is far away from the lens, and light emitted by the light supplementing lamp cannot be reflected or refracted back by rainwater, dust or fog and the like and cannot enter the lens, so that the problem of image clouding can be solved, and a clear image can be obtained.

Description

TECHNICAL FIELD

[0001] The present application relates to monitoring equipment, in particular to a camera. BACKGROUND

[0002] The camera comprises a camera body, a fill light support and a fill light. The fill light support is arranged on the camera body. The fill light is installed on the fill light support. In use, it is found that the image of the camera appears foggy. SUMMARY

[0003] The present application aims to disclose a camera. The camera can improve the problem of image fogging.

[0004] The present application discloses a camera. The camera comprises a camera body, a fill light support and a fill light. The camera body comprises a lens, the angle of the field of view of the lens is 2θ; the fill light support is installed on the camera body and the fill light is installed on the fill light support. The fill light angle and the field of view of the lens form an intersection point, and the distance between the intersection point and the camera body along the direction of the angle bisector of the field of view is H2. The angle of the fill light angle is 2β; the distance between the fill light and the lens along the direction perpendicular to the angle bisector is D2, and D2≥H2×(tan(θ)+tan(β)).

[0005] In some embodiments, D2≥27cm.

[0006] In some embodiments, the fill light support is symmetrically arranged relative to the angle bisector.

[0007] In some embodiments, the fill light comprises a high beam and a low beam, and the side where the camera body is located is the inner side; the distance between the innermost high beam and the camera body along the direction perpendicular to the angle bisector is D2; and the low beam is farther away from the camera body than the outermost high beam.

[0008] In some embodiments, the angle of the fill light angle of the innermost low beam is 2α; the fill light angle of the innermost low beam and the field of view of the lens form an intersection point, and the distance between the intersection point and the camera body along the direction perpendicular to the angle bisector is H1; the distance between the innermost low beam and the camera body is D1, and D1≥H1×(tan(θ)+tan(α)).

[0009] In some embodiments, the light compensation angle of the innermost low beam is divided into a first light compensation angle and a second light compensation angle, the first light compensation angle is closer to the camera body than the second light compensation angle; the first light compensation angle is α1, and the second light compensation angle is α2, α1<α2, and α2≥θ.

[0010] In some embodiments, the light compensation lamp holder is made of a heat-conducting material.

[0011] In some embodiments, the light compensation lamp holder is provided with a through hole penetrating the light compensation lamp holder in the direction of the camera body, and the through hole extends along the length direction of the light compensation lamp holder.

[0012] In some embodiments, the camera body comprises a body and a mounting table, the mounting table is convex relative to the belly of the body, and the light compensation lamp holder is mounted on the mounting table.

[0013] In some embodiments, the light compensation lamp holder comprises an unfolded state and a folded state. In the unfolded state, the light compensation lamp holder is perpendicular to the angle bisector; in the folded state, the light compensation lamp holder is attached to the belly of the body.

[0014] In some embodiments, the camera comprises a switch button and a self-locking rotary joint, and the light compensation lamp holder is connected to the convex table through the self-locking rotary joint. The light compensation lamp holder rotates around the self-locking rotary joint in a first direction to switch from the folded state to the unfolded state and is locked by the switch button. In the case that the light compensation lamp holder is unlocked by the switch button, the light compensation lamp holder rotates in a second direction to switch from the unfolded state to the folded state.

[0015] For the above-mentioned camera, when D2≥H2×(tan(θ)+tan(β)), the light compensation lamp is far away from the lens, the light emitted by the light compensation lamp will not be reflected or refracted back by rain, dust or fog, etc., so that the light will not enter the lens, and the image blurring problem can be improved (completely improved, that is, avoided), and a clear image can be obtained. In addition, the light compensation lamp has large power consumption and large heat generation, and since the light compensation lamp is far away from the lens, the heat of the light compensation lamp will not affect the service life of the lens, sensor and other devices, and the service life of them is increased. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a perspective view of the camera of the present application, showing that the light compensation lamp holder is in the folded state;

[0017] Figure 2 is a perspective view of the camera of the present application, showing that the light compensation lamp holder is in the unfolded state;

[0018] Figure 3 is a schematic diagram of a use scene of the camera in the application in an open state. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments (or, modes of implementation) of the application will be described clearly and completely below with reference to the drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0020] If the application embodiments involve directional indications or positional relationships (for example, up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships, movement conditions, etc. between components in a certain posture (as shown in the drawings); if the certain posture changes, the directional indications or positional relationships also change accordingly. In addition, the terms “first”, “second”, etc. in the application embodiments are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0021] Referring to Figure 1 , Figure 2 and Figure 3 , the application discloses a camera. The camera comprises a camera body 1, a light supplement lamp support 2 and a light supplement lamp 3. The camera body 1 comprises a lens, and the lens has a field of view angle of 2θ degrees. The light supplement lamp support 2 is installed on the camera body 1, and the light supplement lamp support 2 is installed with the light supplement lamp 3. In some embodiments, the light supplement lamp support 2 is symmetrically arranged relative to the angle bisector L of the field of view angle of the lens, and each light supplement lamp support 2 is installed with a light supplement lamp 3. The type of the light supplement lamp 3 is not limited, and in the case that the camera is a zoomable camera, the light supplement lamp 3 comprises a high beam 31 and a low beam 32. In the case that the camera is a non-zoomable camera, the light supplement lamp 3 does not need to be distinguished as a high beam and a low beam, and can only achieve light supplement. The number of light supplement lamps 3 can be increased or reduced according to the need of light supplement distance. Figure 3 In the application, the light supplement lamp 3 comprises three high beams 31 and one low beam 32. In addition, Figure 3 In the application, the small black dots represent rain 30.

[0022] The fill light angle of the fill light 3 intersects with the field of view angle of the lens. The distance between this intersection point and the camera body 1 along the angle bisector L is H2. The fill light angle is 2β. The distance between the fill light 3 and the lens along the direction perpendicular to the angle bisector L is D2. When there are multiple fill lights 3, this distance is the distance between the fill light closest to the camera body 1 (i.e., the innermost high beam 31) and the lens. D2 ≥ H2 × (tan(θ) + tan(β)). Figure 3 It can be seen that D1 > D2. Therefore, D2 can be considered as the distance between the fill light 3 and the lens when the camera is non-zoomable (or fixed-focus).

[0023] The inventors of this application discovered that when the fill light 3 is too close to the lens, the light emitted by the fill light 3 is reflected or refracted back by rainwater 30, dust, or fog, and enters the lens, causing image blurring. When D2≥H2×(tan(θ)+tan(β)), the fill light 3 is farther from the lens, and the light emitted by the fill light 3 will not be reflected or refracted back by rainwater 30, dust, or fog, etc. Therefore, the light will not enter the lens, which can improve (completely improve, i.e., avoid) the image blurring problem and obtain a clear image. In addition, the fill light 3 has a large power consumption and generates a large amount of heat. Since the fill light 3 is farther from the lens, the heat from the fill light 3 will not affect the lifespan of the lens, sensor, and other components, thus increasing their lifespan.

[0024] In some implementations, D2 ≥ 27cm, such as 27cm, 28cm, 29cm, 30cm, 31cm, 32cm, 33cm, 34cm, or 35cm, etc.

[0025] See Figure 3 , Figure 2 and Figure 1 The supplementary lighting 3 includes a high beam 31 and a low beam 32. The high beam 31 has multiple ( Figures 1 to 3 In the case of three lights (shown), with the side where the camera body 1 is located as the inner side, along the direction perpendicular to the angle bisector L, the distance between the innermost high beam 31 (that is, the high beam 31 closest to the camera body 1) and the camera body 1 is D2. Correspondingly, the fill light angle of the innermost high beam 31 is 2β. The low beam 32 is farther from the camera body 1 than the outermost high beam 31.

[0026] As described above, since the distance between the innermost high beam 31 and the camera body 1 is D2, and the low beam 32 is farther from the camera body 1 than the outermost high beam 31, it ensures that the high beam 31 and low beam 32 are far from the lens. The light emitted by the high beam 31 and low beam 32 will not be reflected or refracted by rain, dust, or fog, and therefore will not enter the lens. This improves (completely improves, i.e., avoids) the image blurring problem, resulting in a clear image. Similarly, since both the high beam 31 and low beam 32 are far from the lens, the heat from the high beam 31 and low beam 32 will not affect the lifespan of the lens, sensor, and other components, thus increasing their lifespan.

[0027] In other embodiments, when there is only one high beam 31, the positional relationship between the high beam 31, the low beam 32, and the camera body 1 also satisfies the aforementioned relationship. In this case, the innermost high beam 31 is the high beam 31 itself. Those skilled in the art will understand that, compared with the aforementioned embodiments, only the number of high beams 31 changes; therefore, the beneficial effects are the same and will not be described again.

[0028] See Figure 3 The innermost low beam lamp 32 has a fill light angle of 2α degrees. Figure 3 The diagram illustrates a case where the supplementary lighting angle is not bisected. The angles of the supplementary lighting angles are α1 and α2, where 2α = α1 + α2, indicating that the supplementary lighting angle is not bisected. See also... Figure 3 When there is only one low beam, the innermost low beam 32 is the low beam 32 itself; when there are multiple low beams 32, the innermost low beam 32 is the low beam 32 closest to the camera body 1. In either case, the fill light angle of the innermost low beam 32 and the field of view of the lens intersect at a point. Along the direction perpendicular to the angle bisector, the distance between the intersection point and the camera body is H1; the distance between the innermost low beam 32 and the camera body 1 is D1, where D1 ≥ H1 × (tan(θ) + tan(α)).

[0029] As described above, since the distance between the innermost low beam lamp 32 and the camera body 1 in the direction perpendicular to the angle bisector L satisfies D2, the light from the low beam lamp 32 will not be reflected back by rain, dust, fog, etc., and will not enter the lens to improve the image blurring problem. Correspondingly, because it is far from the lens, the heat from the fill light will not affect the lifespan of the lens, sensor and other components, thus increasing their lifespan.

[0030] See Figure 3The innermost low beam lamp 32 has its fill light angle divided into a first fill light angle and a second fill light angle with unequal values. Those skilled in the art will understand that in other embodiments, when there are multiple low beam lamps 32, the fill light angles of the other low beam lamps 32 may also be unequal. The first fill light angle is closer to the camera body 1 than the second fill light angle. The degree measure of the first fill light angle is α1, and α1 is taken as α. The degree measure of the second fill light angle is α2, where α1 < α2 and α2 ≥ θ.

[0031] As described above, the fill light angle of the innermost low beam 32 is not unequally divided, and the first fill light angle is closer to the camera body 1 than the second fill light angle. The degree α1 of the first fill light angle, and α1 as α, can be understood as the light from the innermost low beam 32 tilting outwards from the camera body 1. The farther away from the camera body 1, the better it is at improving the image blurring problem. The heat from the fill light will also not affect the lifespan of components such as the lens and sensor, thus increasing their lifespan.

[0032] See Figure 1 and Figure 2 The fill light bracket 2 is made of a thermally conductive material, such as metal.

[0033] As described above, since the fill light bracket 2 is made of thermally conductive material, the heat from the fill light 3 is transferred to the fill light bracket 2 based on the thermal conductivity of the material. The heat is then diffused outward through the fill light bracket 2, which is beneficial for heat dissipation. Furthermore, the heat from the fill light 3 will not affect the lifespan of components such as the lens and sensor, thus increasing their lifespan.

[0034] See Figure 1 and Figure 2 Facing the camera body 1, the fill light bracket 2 is provided with a through hole 21 extending through the fill light bracket 2. The through hole 21 also extends along the length direction of the fill light bracket 2.

[0035] As described above, on the one hand, in windy conditions, wind can pass through the through hole 21, thereby reducing resistance and preventing damage to the fill light bracket 2; on the other hand, the through hole 21 reduces the weight of the fill light bracket 2.

[0036] See Figure 2 The camera body 1 includes a body 11 and a mounting platform 12. The mounting platform 12 protrudes from the belly of the body 11, and the fill light bracket 2 is mounted on the mounting platform 12.

[0037] As described above, the fill light 3 is mounted on the fill light bracket 2, which is mounted on the mounting platform 12. This lowers the fill light 3 relative to the camera body 11, making the distance between the fill light 3 and the lens the hypotenuse of a right triangle. This greater distance from the lens helps improve image blurring and prevents the heat from the fill light from affecting the lifespan of components such as the lens and sensor, thus extending their lifespan. Furthermore, the mounting platform 12 provides installation space for the fill light bracket 2, facilitating its installation.

[0038] Will Figure 2 and Figure 3 and Figure 1 Compare, Figure 2 and Figure 3 This indicates that the fill light bracket 2 is in the unfolded state. Figure 1 This illustrates the folded state. In the unfolded state, the fill light bracket 2 is perpendicular to the angle bisector; see also... Figure 1 , Figure 1 The diagram illustrates that the fill light bracket 2 is in a retracted state; in this retracted state, the fill light bracket 2 is attached to the abdomen of the fuselage 11. Being attached to the abdomen of the fuselage 11 includes: a) as... Figure 1 As shown, the fill light bracket 2 is located at the bottom of the body 11, and the fill light 3 is exposed on the side of the body 11; (ii) the fill light bracket 2 is located at the bottom of the body 11, and the fill light 3 is exposed on the bottom surface of the body 11.

[0039] As described above, the supplementary lighting bracket 2 includes an unfolded state and a retracted state. In the retracted state, the camera occupies a smaller volume, facilitating packaging and transportation, etc.

[0040] In some embodiments, the camera includes a switch button 4 and a self-locking rotary joint 5. The fill light bracket 2 is connected to the boss 12 via the self-locking rotary joint 5. The fill light bracket 2 rotates around the self-locking rotary joint 5 in a first direction to switch from the retracted state to the extended state and is locked by the switch button 4. To improve the feel, a collision mechanism can be provided, which emits a clicking sound to indicate that the fill light bracket 2 has been extended into place and is locked. When the switch button 4 unlocks the fill light bracket 2, the fill light bracket 2 rotates in a second direction to switch from the extended state to the retracted state. The structure for unlocking and locking the switch button 4, the self-locking rotary joint 5, and the fill light bracket 2 is not limited.

[0041] As described above, the fill light bracket 2 can only switch from the unfolded state to the retracted state when the fill light bracket 2 is unlocked by the switch button 4. This ensures that the fill light bracket is stable and stationary in the unfolded state, which helps to ensure that the non-fill light 3 and the lens meet the aforementioned distance relationship. In this way, the image blurring problem is improved, and the heat from the fill light is ensured that it will not affect the lifespan of the lens, sensor and other accessories, thus increasing their lifespan.

[0042] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A camera, characterized in that, The camera includes a camera body, a fill light bracket, and a fill light; wherein: The camera body includes a lens with a field of view of 2θ degrees; the fill light bracket is mounted on the camera body and has the fill light installed on it; The fill light angle of the fill light and the field of view of the lens intersect at a point, and the distance between the intersection point and the camera body along the direction of the angle bisector of the field of view is H2; The fill light angle of the fill light is 2β; the distance between the fill light and the lens along the direction perpendicular to the angle bisector is D2, where D2≥H2×(tan(θ)+tan(β)).

2. The camera according to claim 1, characterized in that, D2≥27cm; and / or, the supplementary light bracket is symmetrically arranged with respect to the angle bisector.

3. The camera according to claim 1, characterized in that, The supplementary lighting includes a high beam and a low beam, with the side where the camera body is located as the inner side; along the direction perpendicular to the angle bisector, the distance between the innermost high beam and the camera body is D2; the low beam is farther from the camera body than the outermost high beam.

4. The camera according to claim 3, characterized in that, The fill light angle of the innermost low beam lamp is 2α; the fill light angle of the innermost low beam lamp and the field of view of the lens intersect at a point; the distance between the intersection point and the camera body along the direction perpendicular to the angle bisector is H1; the distance between the innermost low beam lamp and the camera body is D1, D1≥H1×(tan(θ)+tan(α)).

5. The camera according to claim 4, characterized in that, The innermost low beam lamp has two different fill light angles: a first fill light angle and a second fill light angle. The first fill light angle is closer to the camera body than the second fill light angle. The degree measure of the first supplementary light angle is α1, where α1 is the α, and the degree measure of the second supplementary light angle is α2, where α1 < α2 and α2 ≥ θ.

6. The camera according to claim 1, characterized in that, The fill light bracket is made of thermally conductive material.

7. The camera according to claim 1, characterized in that, In the direction facing the camera body, the fill light bracket is provided with a through hole that extends through the fill light bracket and the through hole also extends along the length direction of the fill light bracket.

8. The camera according to claim 1, characterized in that, The camera body includes a camera body and a mounting platform. The mounting platform protrudes from the underside of the camera body, and the fill light bracket is mounted on the mounting platform.

9. The camera according to claim 8, characterized in that, The fill light bracket includes an extended state and a retracted state; In the unfolded state, the fill light bracket is perpendicular to the angle bisector; in the retracted state, the fill light bracket is attached to the underside of the fuselage.

10. The camera according to claim 9, characterized in that, The camera includes a switch button and a self-locking rotary joint, and the fill light bracket is connected to the boss through the self-locking rotary joint; The fill light bracket rotates around the self-locking rotating joint in the first direction, switching from the retracted state to the unfolded state, and is locked by the switch button; When the fill light bracket is unlocked by the switch button, the fill light bracket rotates in the second direction to switch from the unfolded state to the retracted state.

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