CN2443396Y

CN2443396Y - Lens focal distance regulating structure

Info

Publication number: CN2443396Y
Application number: CN 00258236
Authority: CN
Inventors: 周文豪
Original assignee: TAIWAN VIDEO SYSTEM Co Ltd
Current assignee: TAIWAN VIDEO SYSTEM Co Ltd
Priority date: 2000-10-20
Filing date: 2000-10-20
Publication date: 2001-08-15
Anticipated expiration: 2010-10-20

Abstract

The utility model provides a lens focal distance regulating structure, which comprises a lens seat, a compression spring, a base seat, an adjusting member, a lens and an image sensor substrate which is locked on the base seat. The compression spring is connected between the chamber of the base seat and the inner surface of the lens seat. The adjusting member is pivoted on the junction of the lens seat and is provided with a plurality of guide holes, and screws penetrate through the guide holes which are opposite to the screws, guide slot of the lens seat and slots of the base seat and move on the guide slot and the slot. The image sensor substrate does not rock to left and right when interlocked with the base seat by turning the adjusting member.

Description

Lens focus is adjusted structure

The utility model relates to a kind of lens focus and adjusts structure, refers to a kind ofly when making the sensing image substrate be subjected to the pedestal interlock especially, and the lens focus of the facts of can not vacillating now to the left, now to the right is adjusted structure.

Press, existing CCTV video camera (Camera) has two kinds of C, CS microscope bases (Mount Lens), wherein the ccd sensor of CS Mount (or CMOS sensor) surface is to the about 12.5mm of distance of camera lens (Lens) focal length, and the surperficial about 17.5mm of distance to camera lens (Lens) focal length of the ccd sensor of C microscope base (or cmos sensor), both differ 5mm.

General CCTV video camera is adopted the design of CS microscope base more, if desire is used the design of C microscope base, then will install 5mm spiral component (T-Ring) 100 additional, and as Fig. 1, and lens focus (Lens Focus) will unclamp set screw 200 earlier if need readjust, and is more loaded down with trivial details in the operation.

So, promptly there is the personage in this field to drop into research, adjust the structure of lens focus to develop a tool, as Fig. 2, the side was provided with a junction surface 51 before it tied up to microscope base 50, and the central part at junction surface 51 is provided with a mirror hole 52, for the camera lens that is bolted in a different size, be equipped with three bar shaped guide groove 53-55 that keep suitable spacing and be sky on the periphery at junction surface 52, two guide grooves 53,54 (54,55; 53,55) be respectively equipped with a fin 56 between, connect thereon for a pedestal 60, this pedestal 60 is provided with a medium altitude chamber 65, and on all discs of pedestal 60, be equipped with three tilted conical grooves 66, be respectively equipped with a screw 67 on the position of these room 65 both sides, supply a Charged Coupled Device (CCD) sensing substrate 70 interlockings on this pedestal 60, and between the room 65 of this

pedestal

60 and 50 inner body surfaces of microscope base, be engaged in a spring 80, on the junction surface 51 of this microscope base 50, then articulate one and adjust ring 90, this adjustment ring 90 is provided with three guide holes 91, pass the guide hole relative 91 for screw 92 with it, the guide groove 53-55 of microscope base 50 and the groove 66 of pedestal 60, and screw 92 can be moved on guide groove 53-55 and groove 66, mat rotates this adjustment ring 90, make more than the Charged Coupled Device sensing substrate 70 removable 5mm, to absorb the focus difference of various different camera lenses.

Only, the type structure still has the problem of some allotment designs on practice, the problem that causes this Charged Coupled Device sensing substrate 70 to be vacillated now to the left, now to the right, meaning promptly, when this adjustment ring 90 was subjected to rotation, the easy torque force inequality of being born because of compression spring 80 was when causing this Charged Coupled Device sensing substrate 70 to be subjected to pedestal 60 interlocks, the phenomenon of vacillating now to the left, now to the right, the facts such as make image frame produce fuzzy or to be distorted.

Edge is, this creator be special with great concentration research and cooperate the utilization of scientific principle, to design one can avoid image sensing substrate in it to be subjected to the pedestal interlock time, the structure of the facts of vacillating now to the left, now to the right.

One of this creation purpose, be to provide one can avoid the vacillate now to the left, now to the right lens focus of the facts of image sensing substrate to adjust structure, it ties up to, and face is equipped with most guide pillars within the microscope base, and on side before the microscope base, be provided with a junction surface, be equipped with most the bar shaped guide grooves that keep suitable spacing and be sky on the periphery at junction surface, be respectively equipped with a fin between two guide grooves, connect thereon for a pedestal, this pedestal is provided with a medium altitude chamber, and on all discs of pedestal, be equipped with most tilted conical grooves, be respectively equipped with a screw on the position of these room both sides, supply an image sensing substrate interlocking on this pedestal, the both sides of this image sensing substrate are provided with pilot hole, be positioned at wherein for guide pillar, and between the room of this pedestal and this inner body surface of microscope base, be engaged in a compression spring, on the junction surface of this microscope base, then articulate one and adjust member, this adjustment member is provided with most guide holes, pass the guide hole relative for screw with it, the guide groove of microscope base and the groove of pedestal, and these screws can be moved on guide groove and groove, mat rotates this adjustment member, when making this image sensing substrate be subjected to the pedestal interlock, the facts of can not vacillating now to the left, now to the right.

Another purpose of this creation is to provide an adjustment structure that can absorb various lens focus differences, in order to do simplifying user's assembling, and makes it go up more convenient in operation.

In order to make your auditor can further understand the feature and the technology contents of this creation, see also following detailed description and accompanying drawing about this creation, yet appended icon only for reference with explanation usefulness, be not to be used for this is created in addition limitr.

The accompanying drawing simple declaration:

Fig. 1 is the exploded view that an existing C microscope base and a camera lens are spirally connected.

Fig. 2 is the exploded view that existing lens focus is adjusted structure.

Fig. 3 is the exploded view of the utility model.

Fig. 4 is the outside drawing of the utility model pedestal inner face.

Fig. 5 is the utility model constitutional diagram.

Fig. 6 is the cut-open view of the utility model.

Fig. 7 is the enforcement illustration of the utility model.

Figure number and title explanation:

1 microscope base, 10 guide pillars, 11 junction surfaces, 12 mirror holes, 121 internal threads, 13-15 guide groove, 16 fins, 17 screws, 18 screws, 19 frameworks, 2 compression springs, 3 pedestals, 31 rooms, 32 screws, 33 screws, 34 grooves, 4 are adjusted member, 41 open-works, 42 guide holes, 43 screws, 5 camera lenses, 6 image sensing substrates, 60 pilot holes, 61 image sensors

See also Fig. 3 to shown in Figure 5, the utility model is that a kind of lens focus is adjusted structure, comprises unit such as a microscope base 1, a compression spring 2, a pedestal 3, adjustment member (adjusting ring) 4, one camera lens 5 and an image sensing substrate 6; Wherein:

This microscope base 1 slightly is square, be installed with a junction surface 11 that outwards is round convex shape on its leading flank, the central part at this junction surface 11 is provided with a mirror hole 12, edge is equipped with internal thread 121 before this mirror hole 12, camera lens 5 for the different size that is spirally connected, and on the periphery at junction surface 11, be equipped with the guide groove 13-15 that three strips keep suitable spacing and are sky, two guide grooves 13,14 (14,15; 13, be respectively equipped with a fin 16 15), connect thereon for a pedestal 3, and be provided with most screws 17 at microscope base 1 periphery medial surface, pass a framework 19 for a plural number screw 18, and be integral with this microscope base 1 interlocking, and within microscope base 1 face, be adjacent to side outside the mirror hole 12, be equipped with most guide pillars 10, in the embodiment of this creation, be provided with four guide pillars that size is identical.

This pedestal 3 is provided with a hollow square room 31, engage thereon for an one of compression spring 2 side end face, this compression spring 2 side end faces in addition then is connected within microscope base 1 body on the face, the both sides of adjacent this room 31 are offered a screw 32 respectively, pass for an image sensing substrate 6 a mats plural number screw 33, and be integral with these pedestal 3 interlockings, on this image sensing substrate 6, be respectively equipped with a pilot hole 60 on the position corresponding with each guide pillar 10, supply image sensing substrate 6 interlockings behind microscope base 1, these guide pillars 10 just can be arranged in pilot hole 60, and when making image sensing substrate 6 be subjected to pedestal 3 interlocks, not having the facts of vacillating now to the left, now to the right takes place, and on image sensing substrate 6, be provided with an image sensor 61, and on all discs of pedestal 3, then be equipped with three tilted conical grooves 34,34 of two grooves are arranged with a short slot 35 respectively, to connect with corresponding fin 16.

This adjustment member 4 is provided with a hollow open-work 41, face is equipped with three guide holes 42 that keep suitable spacing within this open-work 41, pass the groove 13 (14,15) of its corresponding guide hole 42, microscope base 1 and the groove 34 of pedestal 3 in order to each screw 43, and these screws 43 can be moved on guide groove 13-15 and groove 34.

When adjusting member 4 toward counterclockwise when rotating, this image sensing substrate 6 is subjected to pedestal 3 interlocks, cause this compression spring 2 to produce a displacement towards image sensing substrate 6 directions, as Fig. 6, because being subjected to corresponding guide pillar 10 simultaneously, supports by the pilot hole 60 of this image sensing substrate 6, so in the time of can not causing this image sensing substrate 6 to be subjected to pedestal 3 interlocks, the facts of vacillating now to the left, now to the right.At this moment, when rotating toward clockwise directions as if adjustment member 4,2 of this compression springs are back to the location, as shown in Figure 7.

In sum, see through the structural improvement of the utility model, in the time of can making its interior image sensing substrate be subjected to the pedestal interlock, the facts that can vacillate now to the left, now to the right not, be with, the utility model meets the important document of patented claim fully, so file an application according to Patent Law in the whence, ask detailed survey and grant this case, to ensure creator's rights and interests, if the auditor of your office have any check doubtful, the indication of please writing to us without sparing.

Press; the above; it only is the specific embodiment of one of the utility model the best; only the structural attitude of the utility model is not limited thereto; anyly be familiar with this skill person in the field of this creation, can think easily and variation or modification (number of pilot hole can according to need on the practice designed) all can be encompassed in the protection domain of the present utility model.

Claims

1. a lens focus is adjusted structure, it is characterized in that: comprising:

One microscope base, its leading flank is provided with a junction surface that outwards is convex shape, the central part at this junction surface is provided with a mirror hole, is equipped with most guide grooves that keep suitable spacing and be sky on the periphery at junction surface, and face is equipped with most guide pillars within microscope base;

One pedestal is to be engaged in the microscope base body, which is provided with a medium altitude chamber, and is equipped with most tilted conical grooves on all discs;

One compression spring, one side end face system is engaged in the room of pedestal, and side end face system connects with this inner body surface of microscope base in addition;

One image sensing substrate is to be engaged in pedestal, and its both sides are provided with the pilot hole corresponding with guide pillar, is positioned at wherein for this guide pillar; And

One adjusts member, is to be hubbed on the junction surface of microscope base, is equipped with most guide holes on this adjustment member, passes the guide groove of the guide hole relative with it, microscope base and the groove of pedestal for most fitting pieces, can move on guide groove and groove in order to do these fitting pieces.

2. lens focus is according to claim 1 adjusted structure, and it is characterized in that: wherein microscope base periphery medial surface is provided with most screws, passes for a plural number screw, and is integral with a framework interlocking.

3. lens focus is according to claim 1 adjusted structure, it is characterized in that: wherein be respectively equipped with a fin between two guide grooves of microscope base.

4. lens focus is according to claim 1 adjusted structure, and it is characterized in that: wherein the both sides of the room of pedestal are respectively equipped with a screw, to be integral with the image sensing substrate interlocking.

5. lens focus is according to claim 1 adjusted structure, it is characterized in that: wherein be respectively equipped with a groove between two grooves of pedestal, to connect with corresponding fin.