CN2483743Y - Monitor lens with infrared focal distance adjusting function - Google Patents

Abstract

Disclosed is a monitor lens with adjustable infrared focus, which is provided a group of infrared device in the monitor lens. A ring complex throughout cone hole is provided on the device along with the front cover; then a ring complex infrared radiator is invisibly penetrated into the throughout cone hole; and another throughout hole becomes inductive source of the penetrating light to control the starting of the infrared device. The front cover can be adjusted without rotation; therefore, adding an adjusting ring to assist rotary adjusting leads the front cover of the lens to have the focus adjusting capability with moved forward or backward. And the moving action causes the infrared device in the front cover of the lens moved along with the lens, which is unable to affect the function of the infrared device and can choose main lens according to environment or requirement.

Description

The monitor camera lens that tool infrared ray focal length is adjusted

The monitor camera lens that the relevant a kind of tool infrared ray focal length of the utility model is adjusted, particularly a kind of tool and box-like infrared facility and peculiar focal length are adjusted the monitor camera lens of function economic benefits and social benefits unification.

Monitor camera lens parts structure known to the habit person, at first by known to Fig. 1: habit person's monitor A1 be no night infrared facility and close design, use infrared facility as need, must purchase and install one group of infrared facility separately, can auxiliary monitor A1 at night photography; Habit person's monitor A1 separates use and has following drawback with infrared facility:

1. the infrared facility that used of habit person's monitor A1 is parts independently, so must be divided into two partly when purchasing, increases virtually and purchases and installation cost.

2. the main lens that used of monitor A1 has various variety classeses, as: f/4.0, f/6.0, f/8.0... etc.; And infrared facility must be mated Hou via desirable selection and can be suitable for, otherwise must influence the quality of night photography image, and these technical puzzlements, exhausted major part all be purchase and install finish after, just frightened right the discovery, and then cause expending of secondary installing cost.

3. habit person's infrared facility independently in running, when installing, must be adjusted and monitor camera lens parts A2 is same as the position, and this is good, bad to the position adjustment, is concerning photographic image quality at night equally; If infrared facility is improper through touching or setting to the position, the image that is in the camera coverage at night is promptly accused forfeiture; Also be the function of forfeiture night photography as much as to say.

Secondly, please cooperate shown in Figure 2, the camera lens parts A2 structure of habit person's monitor, mainly by: a lens mount A21, a ring seat A22 and a lock A23 are formed; Lens mount A21 wherein comprises a main lens A211, and this main lens A211 and lens mount A21 are the inseparable state of one; This lens mount A21 is assigned among the inner bolt hole A221 of ring seat A22 by its breechblock A212 part spiral shell simultaneously, therebetween by a reed A24 fit, causes both to screw togather the embedding tightness and cooperates; Outside lock A23 and ring seat A22 are screwed simultaneously, also assisted whole camera lens parts A2 can be fixed on the monitor A1; The camera lens parts A2 of preceding described habit person's monitor, the adjustment mode is with rotating mirror headstock A21, and causes displacement to reach in ring seat A22; See the function of this whole adjustment displacement, be subject to the spring power scope of reed A24 fully,, remove difficulty and can join suitable problem so its focal length adjustment displacement gap is quite small and function is weak; Especially---under the situation of varying environment or required video camera, because of structure problem can't reach single main lens A211 local replacing, as select for use: f/4.0, f/6.0, f/8.0 ... various main lens is satisfied and influence selection adapted.

Fundamental purpose of the present utility model is to provide a kind of monitor camera lens of tool infrared ray focal length adjustment, can carry out automatic sensitization at night, photography detecting, the running of auxiliary monitor, and also the focal length adjustment of camera lens can not influence the function of infrared facility.

The technical scheme that the utility model adopted is: the monitor camera lens that a kind of tool infrared ray focal length is adjusted is characterized by: it is adjusted ring, one fixedly connected, one by a back-up ring, a protecgulum, an infrared facility, main lens, a main lens set collar, a tensile spring, and adjusts element such as ring stator and formed; Wherein:

Back-up ring is fixed at the internal thread of adjusting the ring inside rim, becomes retaining and closes the retaining edge of exterior rim at the bottom of protecgulum, is the sink node of protecgulum displacement;

Protecgulum is provided with the perforation taper hole of ring-type plural number in side face, and central authorities then are big convergence inclined-plane, and the perforation of tool rim is partly offered at positive center, inclined-plane, and main lens set collar screw lock is decided the firm embedding of main lens in the perforation in the inner screw channel seat of protecgulum central interior; Protecgulum is screwed with adjusting ring by the spiral shell seat of inside, and simultaneously, fixedly connected tip post inserts the set symmetrical tip hole slot of spiral shell seat surface, forms the sincere state of embedding;

Infrared facility with protecgulum side face aspect equally in the form of a ring, and is established a plural in the form of a ring infrared transmitter of tool and a light sensation detector; Whole infrared facility is placed in the inside of protecgulum, and a plural infrared transmitter and a light sensation detector, connect in the taper hole in the set ring-type of protecgulum plural number with the corresponded manner injection, and with cable tail by the set fairlead injection of protecgulum periphery, connect with infrared facility;

Main lens is positioned at the RC perforation in the big convergence of protecgulum inclined-plane, mainly is assigned in the inner screw channel seat of protecgulum central authorities by main lens set collar spiral shell, and the firm embedding of the leading edge of main lens is fixed;

The main lens set collar is assigned in the central inner screw channel seat of protecgulum with outer rim screw thread spiral shell, and embedding is due to main lens;

Tensile spring places protecgulum and fixedlys connected in the formed space of a groove, by the tension force effect, protecgulum and the spiral shell of adjusting ring is joined, and has width more significantly, good screws togather the embedding tightness, cooperates texture;

Adjust ring, be assigned in the spiral shell seat of protecgulum, and the outer rim of middle groove spiral shell seat is provided with in addition for the screw of adjusting the locking of ring stator, will adjust and encircle stator and be locked in the kerve with the middle groove spiral shell seat spiral shell of inside;

Fixedly connected, be arranged in the end outer rim of adjusting ring groove spiral shell seat, its spiral shell portion end is fixed at monitor; Bearable tensile spring in the groove wherein, but then embedding is sincere in the tip hole slot of protecgulum for the tip post that is extended, and is locked in the adjustment ring stator of adjusting ring with the top, is the live relative structure of pivot of rotation;

Adjust the ring stator, schedule in the kerve of adjusting ring,, become a relative structure of rotating the pivot of living with fixedly connected with by adjusting tuning of ring with the lock screw lock.

The light sensation detector that infrared facility is set can be set the strong and weak value of light source, the startup of control infrared facility; Main lens can be with by environment or the required adapted of being selected.

Principle of the present utility model and beneficial effect are: one-piece construction function of the present utility model, in the monitor camera lens, install one group of infrared facility, this device is with capping before the camera lens, if tool plural number in the form of a ring connects taper hole, and then make ring-type plural number infrared transmitter Tibetan close injection and another through hole, become light and penetrate induction source, and then whether the decision infrared facility starts.

At first, the light sensation detector is induction source with light, and the light sensation detector can be set the strong and weak value of light source, and then whether the decision infrared facility starts the startup of control infrared facility; Infrared facility of the present utility model sees through before the camera lens through hole of capping and passes on control, when the infrared ray device senses the low what setting value of light, promptly can start infrared facility automatically, and then auxiliary monitor operates in dark (or night) at light; If monitor place what is bright and during the high what setting value of light sensation detecting light, this infrared facility promptly can be closed running automatically, with so effective function running, can make the utility model performance automatically, the operation effectiveness of full efficacy.

Secondly, the camera lens protecgulum of inner installing infrared facility, in the function running, must have the focal length adjusting mechanism, carry out the due focal length of monitor and adjust function, prolong because of infrared ray due to the cable tail that, on structural design, making the camera lens protecgulum is non-rotatable adjustment, adjusts ring by one in addition and is assisted; It is auxiliary to adjust tuning of ring thus, can make the camera lens protecgulum reach preceding, Hou displacement focal length adjustment capability, and this displacement action, the infrared facility that makes camera lens protecgulum inside is synchronous shift thereupon also, can not influence the infrared facility function, not need to adjust separately again infrared facility yet; Main lens can be with by environment or the required adapted of being selected.

In a word, the utility model not only solves habit person's monitor to the what night photography, with indispensable infrared facility and close technology, solve and close the technology of infrared facility back focal distance adjustment simultaneously.

With embodiment the utility model is described in further detail with reference to the accompanying drawings below.

The explanation of accompanying drawing drawing:

Fig. 1 is the three-dimensional appearance synoptic diagram of habit person's monitor camera lens parts;

Fig. 2 is the whole sectional structure synoptic diagram of habit person's monitor camera lens parts;

Fig. 3 is the utility model most preferred embodiment schematic appearance;

Fig. 4 is the utility model integral member decomposition texture synoptic diagram;

Fig. 5 is the utility model camera lens protecgulum sectional structure synoptic diagram;

Fig. 6 is the utility model adjustment ring sectional structure synoptic diagram;

Fig. 7 is that the whole sectional structure of the utility model is made synoptic diagram;

Fig. 8 is the operation enforcement synoptic diagram that the utility model is fitted to monitor.

At first see also Fig. 3, shown in Figure 4, the utility model is based on monitor 1 employed camera lens assembly 2; This camera lens assembly 2 is adjusted 27, fixedly connected 28 on ring, by a: back-up ring 21, a protecgulum 22, an infrared facility 23, main lens 24, a main lens set collar 25, a tensile spring 26, and is adjusted elements such as ring stator 29 and formed;

Please cooperate shown in Figure 5, covered 22 wherein and be a ring set structure, end exterior rim has retaining edge 220, side face in its dead ahead is provided with the perforation taper hole 221 of ring-type plural number, central authorities then are big convergence inclined-plane 222, and the positive center on inclined-plane 222 partly, offers a perforation 224 for bearing main lens 24 and tool rim 223; In addition, the inside of this protecgulum 22 can be screwed with adjusting ring 27 with spiral shell seat 225, and 225 of spiral shell seats offer the tip hole slot 226 of symmetry in addition, and fixedly connected 28 tip post 281 inserts tip hole slot 226; Secondly, set screw thread 251 screw locks of main lens set collar 25 outer rims are in the inner screw channel seat 227 of protecgulum 22 central authorities, with main lens 24 firm embeddings (can consult shown in Figure 7 earlier) calmly; In other words, the main lens 24 of structure has the advantage of independent replacing according to this, has more the effect of deriving of selecting adapted.

As shown in Figure 4, aforesaid infrared facility 23 elements, with protecgulum 22 positive side faces aspect equally in the form of a ring, and the front is provided with a ring-type plural number infrared transmitter 231 and a light sensation detector 232, light sensation detector 232 wherein is an induction source with light, light sensation detector 232 can be set the strong and weak value of light source, and then whether decision infrared facility 23 starts the startup of control infrared facility; Infrared facility 23 is placed in protecgulum 22 inside, and make these plural infrared transmitter 231 and light sensation detectors 232, connect in the taper hole 221 in the set ring-type plural number of protecgulum with the corresponded manner injection, and with a cable tail 233, via set fairlead 228 injection of protecgulum periphery, and then connect with infrared facility 23; As shown in Figure 7.

Continue and please cooperate Fig. 4 and shown in Figure 6, adjust the aspect that ring 27 is the ring set body equally, main swivel nut cooperates what protecgulum 22 elements; Its structure is assigned in the spiral shell seat 22 5 of protecgulum with set middle groove spiral shell seat 271 spiral shells in inside, by the effect of tensile spring 26, both spiral shells is joined, and has width more significantly, good screws togather the embedding tightness, cooperates texture; In addition, middle groove spiral shell seat 271 outer rims, other is provided with for the screw 272 of adjusting 29 lockings of ring stator, this stator 29 can be locked in the kerve 273 of adjusting ring 27 bottoms; As for back-up ring 21, be fixed at and adjust the set internal thread 274 of ring 27 inside rim, become retaining guard ring body structure one; Its main function is closed the set retaining edge 220 of exterior rim at the bottom of protecgulum with back-up ring 21 retainings, and then causes the sincere effect of embedding; Utilize the sincere effect of this embedding, except that make adjust ring 27 not can because of spiral shell too move back deviate from fully; Simultaneously, also can become the sink node of protecgulum 22 displacements.

Continue and please cooperate Fig. 4 and shown in Figure 7, wherein fixedly connected 28 and adjustment ring stator 29 two elements have relative relational structure; Before addressed the relevant ring stator 29 of adjusting, be locked in the bottom surface of adjusting ring 27 with lock spiral shell 291, and fixedly connected 28, remove in the end outer rim 275 of bearing groove spiral shell seat 271 in adjusting ring, and be positioned at fixedly connected 28 bottom; Though need emphasize--adjust ring stator 29 and be locked in and adjust ring 27, can't influence or embedding sincere in fixedly connected 28; On the contrary, this adjustment ring stator 29 is with adjusting tuning of ring 27, and then becomes live the relative structure of pivot of a rotation with fixedly connected 28, also is fixedly connected 28 as much as to say and maintains static movingly, can encircle 27 and tune and rotate with adjusting and adjust ring stator 29; Secondly, prolong the symmetrical tip post 281 that by fixedly connected 28, injection and embedding can be spirally connected fixing with monitor 1 by spiral shell portion 282 in the tip hole slot 226 of protecgulum; Set middle groove 283 in it be able to be for putting a tensile spring 26; The design of structure according to this, this fixedly connected 28 is fixed at monitor 1, and by 281 embeddings of tip post sincere protecgulum 22, be locked in and adjust ring 27 and adjust ring stator 29; So can learn: the element in wherein fixedly connected 28, protecgulum 22 and the protecgulum is can not turn; Only only adjust ring 27 and have the function of turn, utilize the function of this turn, can make the element (comprising: infrared facility, main lens, main lens set collar, tensile spring) in the protheca 22, screw togather apart from wide according to its protheca 22 and adjustment ring 27, as shown in Figure 8, produce focal length preceding, Hou and adjust displacement (terminal point that screws togather is carried out by back-up ring), reach only turn in adjusting ring 27, can finish the function of focusing, can not have influence on the function and the cable tail 233 of infrared facility 23, not need to adjust separately again what infrared facility 23 yet.

Claims (3)

1. the monitor camera lens adjusted of a tool infrared ray focal length is characterized by: it is adjusted ring, one fixedly connected, one by a back-up ring, a protecgulum, an infrared facility, main lens, a main lens set collar, a tensile spring, and adjusts element such as ring stator and formed; Wherein:

Back-up ring is fixed at the internal thread of adjusting the ring inside rim, becomes retaining and closes the retaining edge of exterior rim at the bottom of protecgulum, is the sink node of protecgulum displacement;

Protecgulum is provided with the perforation taper hole of ring-type plural number in side face, and central authorities then are big convergence inclined-plane, and the perforation of tool rim is partly offered at positive center, inclined-plane, and main lens set collar screw lock is decided the firm embedding of main lens in the perforation in the inner screw channel seat of protecgulum central interior; Protecgulum is screwed with adjusting ring by the spiral shell seat of inside, and simultaneously, fixedly connected tip post inserts the set symmetrical tip hole slot of spiral shell seat surface, forms the sincere state of embedding;

Infrared facility with protecgulum side face aspect equally in the form of a ring, and is established a plural in the form of a ring infrared transmitter of tool and a light sensation detector; Whole infrared facility is placed in the inside of protecgulum, and a plural infrared transmitter and a light sensation detector, connect in the taper hole in the set ring-type of protecgulum plural number with the corresponded manner injection, and with cable tail by the set fairlead injection of protecgulum periphery, connect with infrared facility;

Main lens is positioned at the RC perforation in the big convergence of protecgulum inclined-plane, mainly is assigned in the inner screw channel seat of protecgulum central authorities by main lens set collar spiral shell, and the firm embedding of the leading edge of main lens is fixed;

The main lens set collar is assigned in the central inner screw channel seat of protecgulum with outer rim screw thread spiral shell, and embedding is due to main lens;

Tensile spring places protecgulum and fixedlys connected in the formed space of a groove, by the tension force effect, protecgulum and the spiral shell of adjusting ring is joined, and has width more significantly, good screws togather the embedding tightness, cooperates texture;

Adjust ring, be assigned in the spiral shell seat of protecgulum, and the outer rim of middle groove spiral shell seat is provided with in addition for the screw of adjusting the locking of ring stator, will adjust and encircle stator and be locked in the kerve with the middle groove spiral shell seat spiral shell of inside;

Fixedly connected, be arranged in the end outer rim of adjusting ring groove spiral shell seat, its spiral shell portion end is fixed at monitor; Bearable tensile spring in the groove wherein, but then embedding is sincere in the tip hole slot of protecgulum for the tip post that is extended, and is locked in the adjustment ring stator of adjusting ring with the top, is the live relative structure of pivot of rotation;

Adjust the ring stator, schedule in the kerve of adjusting ring,, become a relative structure of rotating the pivot of living with fixedly connected with by adjusting tuning of ring with the lock screw lock.

2. according to claim 1 a monitor camera lens that described tool infrared ray focal length is adjusted, it is characterized by: the light sensation detector that infrared facility is set, can set the strong and weak value of light source, the startup of control infrared facility.

3. the monitor camera lens of adjusting according to the described tool infrared ray focal length of claim 1 is characterized by: main lens can be with by environment or the required adapted of being selected.

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