CN201434928Y - Lens assembly body and photographic arrangement - Google Patents

Abstract

The utility model provides a lens assembly body and a photographic arrangement having the same, even if the lens assembly body is arranged with thread portions respectively threaded with a lens frameand a support, it can inhibit the garbage caused by the sliding of the thread portions from entering a sensor side when in focusing after being assembled. The lens assembly body (1) is provided with the lens frame (11), the lens frame (11) is used for winding and holding a camera shooting lens (110) for forming a light of an object to be shot on a shooting element (12C) for forming a sensor (12).the outer circumferential surface of the lens frame (11) is provided with an outer thread portion (111) threaded in a hollow inner wall of a threaded support (10), and the side nearer the ejecting side than the outer thread portion (111) at the outer circumferential surface of the lens frame is provided with a cylindrical outer wall portion (112) of the hollow inner wall contacted or closed to thesupport (10). Thus the pathway leading the garbage to enter into the sensor side is broken or thinned by the cylindrical outer wall and the hollow inner wall.

Description

Entirety of lens package body and camera

Technical field

The present invention relates to a kind of object light that makes and be imaged on the camera that imaging lens system on the sensor is assembled into inner entirety of lens package body and possesses this entirety of lens package body.

Background technology

In the past, known have the imaging lens system that object light is imaged on the sensor such as imaging apparatus to be assembled into inner entirety of lens package body.The structure that the holding section that external thread that precision screws togather and internal thread simplify support and lens-mount is set on lens-mount and support in this kind entirety of lens package body to be to seek miniaturization, and the scioptics framework is screwed into support and can simply carries out optical axis alignment simultaneously.Owing to can seek subminiaturization to this entirety of lens package body, therefore expectation is loaded into day seeking the portable equipment of small-sized slimming, and, can make support hold dustproof construction by screwing togather of accurate thread, so expectation is applied to be located at the outer vehicle mounted camera of car etc.

Fig. 1 is the figure of the formation of its entirety of lens package body of expression.

Entirety of lens package body 2 shown in Figure 1 possesses: support 20; In the lens-mount 21 of imaging lens system 210 is housed; The imaging apparatus 22A of the object light imaging of catching with the imaging lens systems 210 that make in the lens-mount thus 21.The cloche 22B of the promising protection imaging apparatus 22A of assembling above this imaging apparatus 22A.At lens-mount 21 external thread part 211 is set, the internal thread part 201 that is screwed together in this external thread part 211 is set at support 20.In this example, become cloche 22B and imaging apparatus 22A together by constituting that another support 22C keeps, therefore, another support 22C and the cloche 22B that remains on this support 22C as the parts that constitute sensor, and are comprised imaging apparatus 22A and cloche 22B and support 22C and are referred to as sensor 22.

When the entirety of lens package body 2 of these formations is held in assembling, after at first sensor 22 is assembled in the mode of the rear end face of obstruction support 20, lens-mount 21 from the front end face of support 20 promptly from being screwed into sensor 22 side opposition sides are arranged, the external thread 211 of scioptics framework 21 is screwed into the internal thread part 201 in support 20, and simply carries out the assembling of entirety of lens package body 2.

And then, finish assembling after, by advance along the optical axis direction spiral shell or spiral shell move back lens-mount 21 can be simply and precision focus well.

Yet if above-mentioned formation, by with respect to optical axis lens-mount 21 spiral shells being advanced, when spiral shell moves back and focuses, produce rubbish by the slip of external thread part 211 and internal thread part 201 sometimes, and the rubbish that produces drops into sensor 22 sides.Be attached to the cloche 22B that constitutes sensor 22 if fall the rubbish of sensor 22 sides, then rubbish becomes light-blocking member to work, thereby the image that is imaged on the imaging apparatus 22A that constitutes sensor 22 is brought bad influence.

In patent documentation 1, proposed screw thread to be set, prevented the technology of rubbish intrusion internal stent by periphery at support, still, if utilize this technology can cause the maximization of support.

[patent documentation 1] specially opens the 2006-338026 communique

Summary of the invention

The objective of the invention is to, address the above problem a little, be provided with the threaded portion that screws togather even provide a kind of respectively at the outer peripheral face of lens-mount and the inner peripheral surface of support, the rubbish that is produced by the slip of threaded portion in the time of also can not focusing after assembling enters into the small-sized entirety of lens package body of sensor and possesses the camera head of this entirety of lens package body.

Reach the entirety of lens package body of the present invention of above-mentioned purpose, it is characterized in that possessing: support has opening at front end face and rear end face, and has the hollow of the perforation that connects these two openings;

Sensor disposes by the mode of the opening that stops up above-mentioned rear end face, and accepts object light and generation picture signal that the opening incident by above-mentioned front end face comes;

Imaging lens system is imaged on object light on the sensor;

Lens-mount, the above-mentioned imaging lens system and keep this imaging lens system of reeling,

The said lens framework has: external thread part is formed at the outer peripheral face of said lens framework, and is screwed into the hollow wall of above-mentioned support; Cylinder outer wall portion, the above-mentioned external thread part of ratio that is formed at the periphery of said lens framework more leans on emitting side, and an ancient piece of jade, round, flat and with a hole in its centre in the hollow of contact or approaching above-mentioned support,

Above-mentioned support ancient piece of jade, round, flat and with a hole in its centre in above-mentioned has: internal thread part has been screwed into above-mentioned external thread part; Cylinder outer wall portion contacts with above-mentioned cylinder outer wall portion or approaching.

According to the entirety of lens package body of the invention described above, the said lens framework possesses: be screwed together in the external thread part of the internal thread part of above-mentioned support, also possess the cylinder outer wall portion of more leaning on the hollow wall of emitting side formation, contact or approaching above-mentioned support than this external thread part.

When the cylinder outer wall portion of said lens framework during for contact or near the formation of the hollow wall of above-mentioned support, can make rubbish enter the pathway blocking of sensor side or become superfine by cylinder outer wall portion and hollow wall, even for example focus by making external thread part screw togather internal thread part and lens-mount being advanced and retreat with respect to sensor, the rubbish that is produced by the slip of external thread and internal thread also is difficult to fall sensor side.

At this, the diameter of above-mentioned cylinder outer wall portion is greater than the diameter of the bottom of trench of above-mentioned external thread part,

Above-mentioned support is the said lens framework is brought the sensor assembly into from the opening of above-mentioned rear end face parts.

When being above-mentioned formation, be not as in the past by promptly lens-mount being installed and being made the lens-mount spiral shell come in to be installed to support from object side from the front end face of support, but be that sensor side is inserted lens-mount and made its spiral shell and then be installed to support by opening from the rear end face of support.

So if as the formation of inserting lens-mount from the opening of rear end face, the diameter of cylinder outer wall that will more form by emitting side than the external thread part of lens-mount, above-mentioned portion forms bigger than the diameter of the bottom of trench of external thread part, so, the rubbish that can produce in the threaded portion is stoped to live by the part at the particle size of its cylinder outer wall portion, thereby can prevent fully that rubbish from invading sensor side.

Reach the camera head of the present invention of above-mentioned purpose, it is characterized in that possessing: entirety of lens package body of the present invention and imaging apparatus.

Like this, by small-sized entirety of lens package body of the present invention is assembled in camera head, can seek the miniaturization of camera.

As described above, even realize being provided with the threaded portion that screws togather respectively at lens-mount and support both sides, the dust that is produced by the slip of threaded portion in the time of also can not focusing after assembling enters the small-sized entirety of lens package body of sensor side and possesses the camera head of this entirety of lens package body.

Description of drawings

Fig. 1 is the figure that represents the formation of entirety of lens package body in the past.

Fig. 2 (a) and (b) are figure of outward appearance of mobile phone 3 of the band camera of expression one of the camera head example that is assembled with entirety of lens package body 1 of the present invention and imaging apparatus.

Fig. 3 is the outside drawing of the entirety of lens package body of one embodiment of the present invention.

Fig. 4 is the exploded view of the entirety of lens package body of Fig. 2.

Fig. 5 (a) and (b), (c) are the side views of lens-mount, the 1st support and the 2nd support from the exploded view of lower left observation Fig. 3.

Fig. 6 (a) and (b) are the figure that observe the support 10 of Fig. 3 from left bank top, and cut off this figure and observe the figure of section from the side with the D-D line in scheming.

Among the figure: the 1-entirety of lens package body 10-lens carrier 101-internal thread part 102-cylinder inner wall 11-of the portion lens-mount 110-lens 111-external thread part 112-cylinder outer wall 12-of portion sensor 12A-support 12B-cloche 12C-imaging apparatus

Embodiment

Below, with reference to the description of drawings embodiments of the present invention.

Fig. 2 (a) and (b) (following Fig. 2 (a) and (b) are referred to as Fig. 2) are the figure of outward appearance of mobile phone 3 of band camera of an example of the expression camera that is assembled with entirety of lens package body 1 of the present invention and imaging apparatus.The lens 110 of the mobile phone 3 of band camera shown in Figure 2 use entirety of lens package body of the present invention.

Fig. 3 is the figure of the entirety of lens package body 1 of expression one embodiment of the present invention.Fig. 4 is the exploded view of the entirety of lens package body 1 of Fig. 3, and Fig. 5 (a) and (b), (c) (following Fig. 5 (a) and (b), (c) are referred to as Fig. 5) are the lens-mount 10 from the exploded view of left bank forward observation Fig. 4 of Fig. 4 and the side view of support 11 and sensor 12.

Constitute with reference to Fig. 3 to Fig. 5 simple declaration.

In the support 10 of entirety of lens package body 1 shown in Figure 3, take in the lens 110 of 4 groups of formations.In the example of this Fig. 3, with in the same manner in the past, by in order to reach 2 reasons of easy in miniaturization and the assembling, at lens-mount 11 external thread part 111 is set, and at support 10 internal thread part 101 that external thread part 111 therewith screws togather is set, by lens-mount 11 is screwed into support 10 and assembling lens assembly 1.

As Fig. 4, shown in Figure 5, support 10 has opening at front end face 10A and rear end face 10B, and has the hollow of the perforation that connects these two openings.As Fig. 4, shown in Figure 5, be screwed into the lens-mount 11 of the lens that keep 4 groups of formations at the hollow bulb of this support 10.And then, possess support 12A in support 10 opposite sides therewith, keep above-mentioned cloche 12B and imaging apparatus 12C in that this another support 12A is inner.That is, with one of the sensor 12 among this support 12A, cloche 12B and the present invention of imaging apparatus 12C formation example.

This sensor 12 is configured by the mode of the opening of the rear end face that stops up support 10, and the imaging apparatus 12C in the sensor 12 accept the object light that the opening incident of the front end face by support 10 comes thus, and by this imaging apparatus 12C generation picture signal.

At this, describe the formation of entirety of lens package body 1 in detail with reference to Fig. 4, Fig. 5.

As Fig. 4, shown in Figure 5, possess lens-mount 11 at entirety of lens package body 1, this lens-mount 11 is reeled and is used for the imaging lens system 110 of imaging object light on the imaging apparatus 12C that constitutes sensor 12 and keeps this imaging lens system 110.Be formed with the external thread part 111 of the hollow wall that is screwed into support 10 at the lens-mount outer peripheral face of its lens-mount 11, more by emitting side, be formed with contact or at the ratio external thread part 111 of its lens-mount outer peripheral face near the cylinder outer wall portion 112 of the hollow wall of support 10.

On the other hand, with regard to support 10, wall being provided with is screwed into the internal thread part 101 of above-mentioned external thread part 111 within it, and is provided with contact or near the cylinder inner wall portion 102 of above-mentioned cylinder outer wall portion 112.

The diameter of the cylinder outer wall portion 112 of said lens framework 11 forms bigger than the diameter of the bottom of trench of external thread part 111, and as Fig. 4, shown in Figure 5, support 10 is parts that lens-mount 11 is included in from the opening of the rear end face of support 10.

With reference to Fig. 6 (a) and (b) (following Fig. 6 (a) and (b) are referred to as Fig. 6) understandable explanation is carried out in effect.

Fig. 6 be observe from left bank top Fig. 4 support 10 figure and cut off this figure and observe the figure of section from the side with the D-D line in scheming.

As can be seen from Figure 6, be formed with the external thread part 111 of the hollow wall that is screwed into support 10 at the outer peripheral face of the lens-mount of lens-mount 11, more by emitting side, be provided with contact or at the ratio external thread part 111 of the outer peripheral face of this lens-mount near the cylinder outer wall portion 112 of the hollow wall 102 of support 10.On the other hand, support 10 wall within it is provided with the internal thread part 101 that is screwed into above-mentioned external thread part 111, and, be provided with contact or near the cylinder inner wall portion 102 of above-mentioned cylinder outer wall portion 112.

And then the diameter of the cylinder outer wall portion 112 of lens-mount 11 forms bigger than the diameter of the bottom of trench of external thread part 111, and support 10 is parts that lens-mount 11 is included in from the opening of the rear end face of support 10.

Promptly, in the past, from the front and the object side insertion lens-mount 11 of support 10, but in the present invention, insert lens-mount 11 from the rear end face side of lens-mount 10, and the diameter of the cylinder outer wall portion 112 of lens-mount 11 is formed bigger than the diameter of the bottom of trench of external thread part 111.

So, under the situation of the also big cylinder outer wall portion 112 of diameter that can constituent ratio external thread part 111, when scioptics framework 11 spiral shells advance or spiral shell moves back when focusing, even the slip by the threaded portion produces rubbish, also can stop rubbish, and prevent that rubbish from invading the sensor side of the emitting side that is positioned at lens in these cylinder outer wall portion 112 parts.

As described above, even realize being provided with respectively the both sides' that are screwed together in lens-mount and support threaded portion, the rubbish that is produced by the slip of threaded portion in the time of also can not focusing after assembling enters into the entirety of lens package body of sensor side.

If realized this entirety of lens package body, can be equipped on the portable equipment of seeking miniaturization day by day, and, can realize preventing that dust from invading the structure in the support by screwing togather of accurate thread, therefore, also can expect as the vehicle mounted lens etc.

Claims (3)

1. entirety of lens package body is characterized in that possessing:

Support, it has opening at front end face and rear end face, and has the hollow of the perforation that connects these two openings;

Sensor, its mode by the opening that stops up above-mentioned rear end face disposes, and accepts object light and generation picture signal that the opening incident by above-mentioned front end face comes;

Imaging lens system, it is imaged on object light on the sensor; With

Lens-mount, its above-mentioned imaging lens system and keep this imaging lens system of reeling,

The said lens framework has:

External thread part, it is formed at the outer peripheral face of said lens framework, and is screwed into the hollow wall of above-mentioned support;

Cylinder outer wall portion, its above-mentioned external thread part of ratio of outer peripheral face that is formed at the said lens framework is more by emitting side, and contacts with the hollow wall of above-mentioned support or approaching,

Above-mentioned support has at above-mentioned inwall:

Internal thread part, it has been screwed into above-mentioned external thread part;

Cylinder inner wall portion, it contacts with above-mentioned cylinder outer wall portion or is approaching.

2. entirety of lens package body according to claim 1 is characterized in that,

The diameter of above-mentioned cylinder outer wall portion is greater than the diameter of the bottom of trench of above-mentioned external thread part,

Above-mentioned support is the said lens framework is brought the sensor assembly into from the opening of above-mentioned rear end face parts.

3. camera is characterized in that possessing:

The described entirety of lens package body of claim 1.

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