CN101021671A

CN101021671A - Camera capable of rotating angle

Info

Publication number: CN101021671A
Application number: CN200710086964.2A
Authority: CN
Inventors: 龚绍祖; 林伯安; 黄文仪
Original assignee: Compal Electronics Inc
Current assignee: Compal Electronics Inc
Priority date: 2007-03-27
Filing date: 2007-03-27
Publication date: 2007-08-22
Anticipated expiration: 2027-03-27
Also published as: CN100507700C

Abstract

The invention is a rotatable angle camera, comprising a machine casing, and a base pin-jointed under the machine casing, the machine casing is internally provided with a lens unit, a support seat, a motor and a drive gear set, the lens unit comprises a camera and an inclined rotating shaft, the camera of the lens unit is pin-jointed inside the support seat and the motor drives the drive gear set and the drive gear set drives the rotating shaft to rotate; when the inclined rotating shaft starts rotating, the camera of the lens unit changes the rotating angle at once; therefore, the invention uses a single motor to change the rotating angle of the camera, able to quickly guide the camera to accurately reach set point.

Description

The video camera of angle rotatable

Technical field

The present invention relates to a kind of video camera of angle rotatable, relate in particular to a kind of ball-type video camera that uses the anglec of rotation that single motor changes phtographic lens.

Background technology

Ball-type video camera of the prior art, can do moving of comprehensive (360 °) for making phtographic lens to follow the trail of object picked-up image, typically use two motors, carrying out left and right directions (pan) with motor control phtographic lens wherein moves, another motor then is used to control the above-below direction (tilt) that makes phtographic lens carry out the vertical left right and moves, with facilitate phtographic lens about and up and down both direction can both move.

But, the shortcoming of this ball-type video camera, just be to use two motors to control moving right and upwards moving downward of phtographic lens respectively left, this move mode often causes the phtographic lens of ball-type video camera can't be directed into the fixed point of hope quickly and accurately.Therefore, this ball-type video camera rotates phtographic lens in monitoring carries out can causing drop on monitoring period because phtographic lens can not move to the fixed point of monitoring quickly and accurately in the process that surrounding environment scans, so can produce the monitoring dead angle, and monitoring efficiency can reduce.

Summary of the invention

Therefore, fundamental purpose of the present invention is to provide a kind of video camera of angle rotatable, uses single motor to change the anglec of rotation of phtographic lens, and the guided photography camera lens accurately arrives fixed point rapidly, can not produce the monitoring dead angle on monitoring period.

The video camera of angle rotatable provided by the present invention, comprise that a casing, is hubbed at the base of this inferior surface of machine case, and this casing inside is provided with a lens unit, one supporting seat, a motor and a driving gear set, wherein, this lens unit comprises a spherical camera and a turning axle, this turning axle has a central shaft and an excentric shaft, and this excentric shaft intersects with angle of inclination Ω and this central shaft, wherein, the excentric shaft of this turning axle and this camera join, and make the centre of sphere of axis by this camera of the central shaft of this turning axle; This supporting seat is established a spherical axis bearing surface and a peristome, and the turning axle of this lens unit is passed by the peristome of this supporting seat, and the camera of this lens unit is hubbed on the spherical axis bearing surface of this supporting seat; This motor drives described driving gear set, and the central shaft that drives the turning axle of this lens unit by this driving gear set rotates again.

Therefore, video camera of the present invention can use single motor to change the anglec of rotation of the camera of lens unit, can guide the camera of lens unit to arrive the fixed point of wishing quickly and accurately, on monitoring period, can not produce the dead angle, can promote monitoring efficiency.

Description of drawings

Fig. 1 is the video camera synoptic diagram of angle rotatable of the present invention.

Fig. 2 is the spare part exploded view of the video camera of angle rotatable shown in Figure 1.

Fig. 3 is the cut-open view of the video camera inner structure of angle rotatable shown in Figure 1.

Fig. 4 is the floor map of driving gear set of the video camera of angle rotatable shown in Figure 1

Fig. 5 makes lens unit produce the action relationships key diagram that the anglec of rotation changes for the video camera of angle rotatable shown in Figure 1 with single motor.

Symbol description

10...... video camera 15...... casing

20...... upper shell 21...... notch part

22...... fixed leg 30...... lower house

31...... pivot 32...... ring-type fin

33...... holder 34...... plug tenon portion

40...... lens unit 41...... camera

42...... turning axle 42a...... central shaft

42b...... excentric shaft 50...... supporting seat

51...... spherical axis bearing surface 52...... peristome

60...... motor 70...... driving gear set

71...... driven wheel 72...... follower gear

73...... annular orbit 90...... base

91...... socket

Embodiment

As shown in Figure 1 to Figure 3, video camera 10 shown in the present is hubbed at the lens unit 40 that bases 90 and below this casing 15 are hubbed at these casing 15 inside by a casing 15, and forms jointly.

Wherein, this casing 15 is made of jointly a upper shell 20 and a lower house 30, and the inside of this casing 15 also is provided with a supporting seat 50, a motor 60 and a driving gear set 70 except that holding this lens unit 40.And when motor 60 started, the power of motor 60 can drive this lens unit 40 through driving gear set 70 and produce spinning movement.

This lens unit 40 comprises a camera 41 and a turning axle 42.This camera 41 is rotating shaft for bulbous member and with this turning axle 42.This turning axle 42 is bending, have a central shaft 42a and an excentric shaft 42b, and this excentric shaft 42b intersects with angle of inclination Ω and this central shaft 42a, wherein, the axis of the central shaft 42a of this turning axle 42 is by the centre of sphere of this spherical camera 41, so the excentric shaft 42b of this turning axle 42 joins with angle of inclination Ω and this camera 41, and the preferred range of angle of inclination Ω is the 10-45 degree.And, as Fig. 3 and shown in Figure 5, this camera 41 is hunted the lens direction of image, be parallel because of being set as with the axis of the excentric shaft 42b of this turning axle 42, when the camera 41 of lens unit 40 rotated around the central shaft 42a of turning axle 42, the camera lens that this camera 41 is hunted image can change camera angle along with rotation.

This upper shell 20 is hemispherical member, is provided with a notch part 21, and inside is provided with plurality of fixed post 22, connects on it for described supporting seat 50.

This supporting seat 50 is to make lens unit 40 can be hubbed on the member of these casing 15 inside, and cooperates the sphere radian of the camera 41 of this lens unit 40, the inside of this supporting seat 50 is set as a spherical axis bearing surface 51, and is provided with a peristome 52.The turning axle 42 of lens unit 40 passes after the peristome 51 of this supporting seat 50, and the camera 41 of this lens unit 40 can be shelved on the spherical axis bearing surface 51 of this supporting seat 50.

So, as shown in Figure 3, lens unit 40 is attached on the fixed leg 22 of this upper shell 20 by supporting seat 50, thereby lens unit 40 is hubbed on the inside of this upper shell 20 and this supporting seat 50, and the camera 41 of this lens unit 40 can be hunted image from the notch part 21 of this upper shell 20.

This lower house 30 is hemispherical member, can be combined into described casing 15 with upper shell 20, but the inside of this lower house 30 also convexes with a pivot 31, a ring-type fin 32 and a holder 33, and wherein, the axis of the center line of this ring-type fin 32 and this pivot 31 is a coaxial cable.And the back of this lower house 30 convexes with a plug tenon portion 34.

As shown in Figures 2 and 3, this base 90 cooperates the sphere radian of this lower house 30 to be provided with the inwall that is the sphere radian, and is provided with a tongue-and-groove portion 91.So the plug tenon portion 34 of this lower house 30 can be coupled to the tongue-and-groove portion 91 of this base 90, make this lower house 30 therefore articulate and be bound up on this base 90.

To shown in Figure 4, described driving gear set 70 is arranged on the inside of lower house 30, and comprises a driven wheel 71 and a follower gear 72 as Fig. 2.Wherein, this follower gear 72 is hubbed on the pivot 31 of this lower house 30, perhaps, an annular orbit 73 is also offered in the bottom surface of this follower gear 72, when being hubbed on the pivot 31 of this lower house 30 when follower gear 72, the annular orbit 73 of this follower gear 72 embeds for the ring-type fin 32 of this lower house 30 simultaneously, and this structure makes the annular orbit 73 of this follower gear 72 and the ring-type fin 32 of this lower house 30 become one group of slide mechanism, thereby follower gear 72 can rotate quite reposefully.

As Fig. 3 and shown in Figure 5, the lens unit 40 that is hubbed on upper shell 20 connects with the central shaft 42a of turning axle 42 and the center of follower gear 72, so follower gear 72 rotates and can drive lens unit 40 generation spinning movements.

Described motor 60 is arranged on the holder 33 of this lower house 30, and after described driven wheel 71 is bound up in the rotating shaft of motor 60, is meshed with follower gear 72.

Therefore, as Fig. 3 and shown in Figure 5, video camera 10 of the present invention is rotational angle and the camera angles with single motor 60 controls lens unit 40.When motor 60 starts, the rotating shaft of motor 60 can drive driven wheel 71 and rotate, thereby follower gear 72 is rotated, the camera 41 that drives lens units 40 by follower gear 72 produces rotatablely moving of angle of inclination Ω around the central shaft 42a of turning axle 42 again, so the camera lens that this camera 41 is used for hunting image can change camera angle along with the rotary course of camera 41.

Video camera 10 of the present invention uses single motor 60 can guide the camera 41 of lens unit 40 to arrive the fixed point of wishing quickly and accurately, can not produce the monitoring dead angle on monitoring period, so can promote monitoring efficiency.

The above content that discloses; be the preferable specific embodiment of the present invention; goal of the invention all and of the present invention and the effect that can reach are equal to mutually, and for those skilled in the art can unlabored simple modification, improvement or variation, all should fall into the present invention's scope required for protection.

Claims

1, a kind of video camera of angle rotatable comprises that a casing, is hubbed at the base of this inferior surface of machine case, and this casing inside is provided with a lens unit, and a supporting seat, a motor and a driving gear set is characterized in that,

This lens unit comprises a spherical camera and a turning axle, this turning axle has a central shaft and an excentric shaft, and this excentric shaft intersects with angle of inclination Ω and this central shaft, wherein, the excentric shaft of this turning axle and this camera join, and make the centre of sphere of axis by this camera of the central shaft of this turning axle;

This supporting seat is established a spherical axis bearing surface and a peristome, and the turning axle of this lens unit is passed by the peristome of this supporting seat, and the camera of this lens unit is hubbed on the spherical axis bearing surface of this supporting seat;

This motor drives described driving gear set, and the central shaft that drives the turning axle of this lens unit by this driving gear set rotates again.

2, the video camera of angle rotatable as claimed in claim 1, it is characterized in that, the inside of this casing is provided with a pivot, and this driving gear set comprises a driven wheel and a follower gear, wherein, this driven wheel is bound up in the rotating shaft of motor, and this follower gear is hubbed on this pivot and with this driven wheel and meshes, and the central shaft of this lens unit is attached to the center of follower gear.

3, the video camera of angle rotatable as claimed in claim 2, it is characterized in that, the inside of this casing also is provided with a ring-type fin, the bottom surface of the follower gear of this driving gear set is provided with an annular orbit, wherein, the center line of this ring-type fin and the axis of this pivot are coaxial cable, and this ring-type fin embeds in the annular orbit of this follower gear.

4, as the video camera of wherein each described angle rotatable of claim 1 to 3, it is characterized in that the preferred range of described angle of inclination Ω is the 10-45 degree.