CN201491122U - shooting module - Google Patents

Abstract

The utility model achieves a shooting module and an assembly method of the shooting module, wherein the shooting module still can maintain the outer shape of a prior shooting module after arranging an element cover on a base plate side, a lens support (10) is provided with an object side aperture (10A) and an imaging side aperture (100A), and a shooting lens (100) is kept in a state of extending out from the imaging side aperture (100A). A concave portion (111) of an extending portion which contains the shooting lens (100) to extend from the imaging side aperture (100A) is arranged on an element cover (110), and a shooting element (112) is fixed on the bottom portion of the concave portion thereof. The element cover (110) is kept on a clamp (3), and then adjusts a rear focal point.

Description

Camera module

Technical field

The utility model relates to by photographic lens to be made subject be imaged on imaging apparatus and generates the camera module of the view data of expression subject at this imaging apparatus.

Background technology

Major part is built-in with camera module (for example with reference to patent documentation 1) on nearest pocket telephone.In this camera module,, need seek miniaturization as far as possible in order to be equipped on pocket telephone.

Above-mentioned patent documentation 1 by with two parts of lens carrier and element bracket as main constituent element, introduce the camera module of realizing miniaturization.In this patent documentation 1, realize the miniaturization of camera module by following structure, promptly, between lens carrier and element bracket, form screw thread, when focus is adjusted, lens carrier is moved forward and backward with respect to element bracket, and imaging apparatus is positioned at after the image space of photographic lens of lens carrier, with bonding agent be adhesively fixed lens carrier and element bracket.

But, if as above-mentioned patent documentation 1 at the lens carrier of focus adjustment usefulness and the both sides of element bracket screw thread is set, in any case then the both sides' of lens carrier and element bracket diameter can increase.

Therefore, propose to abrogate above-mentioned screw thread and said elements support, constituted the technology (for example with reference to patent documentation 2) of camera module by lens carrier and the substrate that is fixed with imaging apparatus.

In patent documentation 2, replace one side relay lens support along optical axis direction lens carrier to be moved forward and backward with respect to element bracket on one side, while propose to make substrate move forward and backward the technology that makes imaging apparatus be positioned at the image space of photographic lens and be adhesively fixed along optical axis direction with respect to lens carrier.The technology of this patent documentation 2 is called as back focus and adjusts method, if adopt this back focus to adjust method, then need screw thread be set the both sides of lens carrier and element bracket, can seek the slimming of camera module.

At this, an example of the structure of the camera module that is suitable for back focus adjustment method is described.

Fig. 1, Fig. 2, Fig. 3 are that explanation is suitable for the figure of an example of structure that back focus is adjusted the camera module of method.

Show the stereogram of observing camera module 2 from oblique upper at Fig. 1, show the exploded view of Fig. 1, show the central authorities of camera module 2 of cut away view 1 and the end view of the face that dissects from lateral observation at Fig. 3 at Fig. 2.

In camera module shown in Figure 12,, possess the substrate 21 and the photographic lens 22 that lens carrier 20 are arranged, be fixed with imaging apparatus 210 as Fig. 2, shown in Figure 3.The example that possesses 4 lens 220～223 and spacer ring 224 has been shown in this example.

Lens carrier 20 shown in Figure 1 keeps photographic lens 22 (Fig. 2) and has thing lateral aperture 20A and imaging lateral aperture 200A (Fig. 3) in inside.During the imaging lateral aperture 200A all-round opening of this lens carrier 20 assembling, at first from this imaging lateral aperture 200A photographic lens 22 and fixing of in lens carrier 20, packing into.And after the photographic lens 22 of packing into, be fixed with the imaging lateral aperture 200A that the substrate 21 of imaging apparatus 210 is adhesively fixed to lens carrier 20 and be plugged.

Before being fixed, this substrate 21 carries out the focus adjustment of the method for adjusting based on back focus.In the example of Fig. 3,, anchor clamps 3 are moved forward and backward along optical axis carry out the back focus adjustment by substrate 21 is clamped in anchor clamps 3.At this moment, for example generate the picture signal that the check pattern of usefulness is adjusted in expression at imaging apparatus, and monitor image signal carries out the focus adjustment on one side on one side, and the position by focus adjustment decision substrate 21 has then been determined the substrate 21 of position to be adhesively fixed on lens carrier 20.

But, in the structure of Fig. 3, when substrate 21 is remained in anchor clamps 3, exist substrate 21 to cross thin and keep substrate 21 problem of unstable that becomes by anchor clamps.The adjustment precise decreasing that deviation of substrate etc. causes focus is brought out in this unsettled maintenance.

If can cover the structure that keeps this element lid for substrate 21 installation elements at Fig. 1, then can stably keep substrate 21 and improve the adjustment precision that focus is adjusted at anchor clamps 3, still, if like this, then the part of installation elements lid can make camera module become big.

Patent documentation 1: TOHKEMY 2006-80961 communique;

Patent documentation 2: international open WO2006/093377 brochure.

Summary of the invention

The utility model In view of the foregoing, even its purpose is to provide a kind of the installation to be used for also can avoiding the camera module that maximizes and the assemble method of this camera module with the stable element lid that keeps imaging apparatus of anchor clamps.

Realize the camera module of the present utility model of above-mentioned purpose, it is characterized in that having:

Lens carrier, it has thing lateral aperture and imaging lateral aperture and photographic lens is remained the state that stretches out from this imaging lateral aperture;

Element lid, it has the recess and the imaging apparatus of accommodating the extension that described photographic lens stretches out from described imaging lateral aperture and is fixed on this concave bottom,

Described element lid is fixed on described lens carrier with the state that described extension is contained in described recess.

According to above-mentioned camera module of the present utility model, be fixed on lens carrier at substrate-side setting element lid and this element lid.In above-mentioned camera module of the present utility model, lens carrier is changed to the structure that photographic lens is remained in the state that stretches out from the imaging lateral aperture from the structure of accommodating photographic lens integral body in inside as record the patent documentation 1, be contained in the recess of said elements lid for the lens of the part of stretching out from lens carrier.

So, when the assembling camera module, can stablize the element lid of maintenance, the element lid is moved forward and backward carry out the focus adjustment afterwards with maintenances such as anchor clamps.But the recess of element lid replaces lens carrier to accommodate the part of stretching out of lens, so avoid the maximization of camera module integral body.

At this, the preferred described element lid of above-mentioned camera module of the present utility model is adhesively fixed on described lens carrier.

This camera module is when assembling, with maintenance said elements lids such as anchor clamps, carry out the focus adjustment and decide after the position of element lid while the imaging apparatus that is fixed on this element lid is moved forward and backward along optical axis direction with respect to the said lens support, this element can be covered and be adhesively fixed on lens carrier.

The invention effect

According to the utility model, be used for the stable element lid that keeps imaging apparatus and also can avoid the camera module that maximizes and the assemble method of this camera module even realize a kind of the installation in substrate-side.

Description of drawings

Fig. 1 is a stereogram of representing camera module in the past.

Fig. 2 is the exploded view of camera module in the past.

Fig. 3 is the cutaway view of the camera module of Fig. 1.

Fig. 4 is the stereogram that is suitable for camera module of the present utility model.

Fig. 5 is the cutaway view of the camera module of Fig. 4.

Symbol description

The 1-camera module, 10-lens carrier, 100-photographic lens, 101,102,103, the 104-lens, 10A-thing lateral aperture, 100A-imaging lateral aperture, 11-substrate, 110-element lid, 111-recess, 112-imaging apparatus.

Embodiment

Below, with reference to description of drawings execution mode of the present utility model.

Fig. 4, Fig. 5 are the figure of the structure of the suitable camera module 1 of expression the utility model.

At this Fig. 4 the stereogram of observing camera module 1 from oblique upper is shown respectively, shows the central authorities of camera module 1 of cut away view 4 and the end view of the face that dissects from lateral observation at Fig. 5.

Show the figure corresponding at Fig. 4, show the figure corresponding with Fig. 3 at Fig. 5 with Fig. 1.

The structure of the camera module 1 of present embodiment is described with reference to Fig. 4, Fig. 5.

Substrate 21 at camera module in the past illustrated in fig. 3 is thin excessively, can not be at anchor clamps 3 stable these substrates 21 that keep.

At this, in the structure of Fig. 4, Fig. 5, adopted the structure that this element lid 110 is remained in anchor clamps 3 at substrate 11 installation elements lid 110.

Lens carrier 10 shown in Figure 4 has thing lateral aperture 10A and imaging lateral aperture 100A and photographic lens 100 is remained the state that stretches out from this imaging lateral aperture 100A.And element lid 110 has the recess 111 of accommodating the extension that photographic lens 100 stretches out from imaging lateral aperture 100A, and is fixed with imaging apparatus 112 in its concave bottom.

That is, be made as following structure in the present embodiment: with respect to the shape of the lens carrier in the past 20 of Fig. 3, a part of pruning the imaging lateral aperture is assigned to element lid 110 with the function of the part of pruning, and keeps substrates 11 by this element lid 110.If be set as this structure, then when assembling camera module 1, element can be covered 110 and remain in the anchor clamps 3 of back focus adjustment usefulness, thereby can realize raising based on the maintenance intensity of anchor clamps 3.

Therefore, make based on the maintenance of the substrate 11 of anchor clamps 3 stablely, the stability when with anchor clamps 3 imaging apparatus 112 being moved forward and backward increases, and carries out accurate focus adjustment.

In addition, the element lid 110 that is positioned by the focus adjustment is adhesively fixed on the imaging lateral aperture 100A side of lens carrier 10.Thus, keep focus state.

Claims (2)

1. camera module is characterized in that having:

Lens carrier, it has thing lateral aperture and imaging lateral aperture and photographic lens is remained the state that stretches out from this imaging lateral aperture;

Element lid, it has the recess and the imaging apparatus of accommodating the extension that described photographic lens stretches out from described imaging lateral aperture and is fixed on this concave bottom,

Described element lid is fixed on described lens carrier with the state that described extension is contained in described recess.

2. camera module according to claim 1 is characterized in that,

Described element lid is adhesively fixed on described lens carrier.

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