CN201269945Y - High temperature resistant high magnification zooming television lens - Google Patents
High temperature resistant high magnification zooming television lens Download PDFInfo
- Publication number
- CN201269945Y CN201269945Y CNU2008201349931U CN200820134993U CN201269945Y CN 201269945 Y CN201269945 Y CN 201269945Y CN U2008201349931 U CNU2008201349931 U CN U2008201349931U CN 200820134993 U CN200820134993 U CN 200820134993U CN 201269945 Y CN201269945 Y CN 201269945Y
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- lens
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- sapphire
- temperature resistant
- high temperature
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Abstract
The utility model provides a varifocal television lens with heat resistance and high magnification, which contains an optical system and accessories used for connecting the optical system. The varifocal television lens is characterized in that a fixed group is located at the frontmost of the optical system and contains a sapphire optical window, behind which is arranged a front fixed lens group consisting of lenses; and two mobile lens groups which can move in lateral direction are arranged behind the fixed group. A second fixed group is contained and contains a sapphire optical window, behind which is arranged a second front fixed lens group consisting of lenses, and the second fixed group is connected with the fixed group through a switch device controlling the mutual switch between the fixed group and the second fixed group. By the adoption of the structure, a varifocal television lens that can work in a high-temperature environment can be obtained and the lens can form an image for the situation in a high-temperature room so that the image can be received by the television camera.
Description
Technical field
The utility model relates to optical instrument and TV technology, more specifically relates to the high temperature resistant Size Zoom TV pick-up lens in the optical zoom camera lens technology.
Background technology
Unprecedentedly treasure today of the energy at human society, how many energy resource consumptions fields such as smelting iron and steel, cement sintering, waste incineration and generating electricity, ceramic sintering are made full use of the energy to greatest extent given great concern, the new technology that makes full use of the energy and reduce energy resource consumption is for guaranteeing that product quality guarantees that simultaneously production safety all is crucial.
Optics television cameras of the present invention have the focal length variations scope above 20 times, and the maximum angle of visibilities that can reach 100 degree.Have only focal length variations scope more than 2 times in application number 98224057.0 patents before this, but also used balsaming lens.
Some emerging industries need to solve a lot of technical barriers in the process that moves to maturity, for example in the waste incineration and generating electricity process, will run into the energy and supply with problem in good time, just can drive the turbine generating in the process of when combustible in the rubbish is sufficient, burning away the refuse normally, make the power-generating turbine operate as normal but when combustible in the rubbish is not enough, just need in time to supply with fuel such as fuel injected etc.In whole process, need information such as real-time detection combustion chamber temperature, also can run into the dangerous goods that branch not detects in the waste incineration process and enter variety of issues such as firing chamber.Of this sort problem all needs advanced Detection Techniques to solve, and resistant to elevated temperatures high magnification Size Zoom TV camera lens not only can transmit the image information of scenery, can also transmit temperature information, the spectral information of material etc.Therefore this Study on Technology has very high value.
The utility model content
The utility model is high temperature resistant, and technical matters that high magnification Size Zoom TV camera lens solved is to provide a kind of Size Zoom TV camera lens that can be operated in the hot environment, and camera lens can form image so that received by television camera to the situation in the hot room.
The technical solution of the utility model is: a kind of high temperature resistant high magnification Size Zoom TV camera lens, the accessory that comprises optical system and be used for optical system is connected, this optical system foremost is fixing group, should fixing group comprise the sapphire optical window, be provided with the preceding fixed mirror group of forming by lens after the sapphire optical window; Should be provided with two moving lens groups that can laterally move after the fixing group.
Comprise the second fixing group, this second fixing group comprises the sapphire optical window, be provided with after the sapphire optical window by lens forms second before the fixed mirror group, this second fixing group is connected with fixing to organize by the switching device shifter controlling fixing group and the second fixing group and switch mutually.
Should preceding fixed mirror group comprise 4 lens that connect successively, wherein, first lens are the positive lens that quartz material or sapphire material are made, and second lens are the negative lens that optical glass is made, and the 3rd lens and the 4th lens are the positive lens that optical glass is made.
Should preceding fixed mirror group comprise 5 lens that connect successively, wherein, first lens are the positive lens that sapphire material is made, and second lens are the quartzy positive lens of making, the 3rd lens and the 4th lens are the positive lens that optical glass is made, and the 5th lens are the negative lens that optical glass is made.
This second preceding fixed mirror group comprises 4 lens that connect according to this, wherein, first lens are the positive lens that quartz material or sapphire material are made, second lens are the negative lens that optical glass is made, the 3rd lens and the 4th lens are the positive lens that optical glass is made, this first fixed mirror group focal length is 4.5-10mm, and this second fixed mirror group focal length is 20-35mm.
This moving lens group comprises positive lens, negative lens and the positive lens that order is provided with, and the focal length of whole moving lens group is 10-35mm.
Be provided with removable optical filter after two moving lens groups.
This accessory comprises: the sapphire parts of inlaying the sapphire optical window, these sapphire parts connect the lens barrel that is inlaid with preceding fixed mirror group, lens barrel connects the camera lens main body, the ccontaining motion constituent element that is provided with the moving lens group of camera lens main body, connect after this camera lens main body and be used for the mount pad that is connected with television camera, the ccontaining threaded ring that is used to install optical filter in the inside of end in addition of mount pad.
The camera lens main body also comprises cam and driving wheel, and this driving wheel drives cam rotation, and the motion constituent element connects the nail of dialling that can slide in cam path.
Driving wheel connects in order to drive the gear motor assembly of driving wheel.
The beneficial effects of the utility model are:
1, the sapphire optical window has good light transmission features, and can tolerate the bombardment with 1500 degree high-temperature dusts;
2, preceding fixed mirror group, it is positioned at the back of sapphire window, is made of 4 independent lens at least, and they are made by quartz material, sapphire material and optical glass respectively.Quartz material also have be not less than 1000 the degree high temperature tolerance, and the very little usefulness of its chromatic dispersion it help the optical design of camera lens as the main material of preceding mirror group.The 4th lens are made by optical glass among the embodiment, go out high order aspheric surface in the surface working of optical glass and want easily;
3, moving lens group in the process that lens focus changes, make the lens combination that needs two motions at least in certain fixed position in space as the plane all-the-time stable of camera lens move according to the optical axis of certain rule along camera lens.All adopt the lens of some gummeds in before this design for the aberration of corrective system, but balsaming lens can not withstand high temperatures, adopts complete discrete form to help system and bears high temperature environment;
4, whole camera lens be provided with optical filter at last, the character of optical filter is to decide according to the environment for use of camera lens and application requirements, can be that bandpass filter also can be a neutral colour filter;
5, utilize switching device shifter the fixedly group and the second fixing group of different focal can be switched mutually, make zooming range increase, in the embodiment of this case Fig. 3, its zoom ratio reaches more than 20 times, considerably beyond existing 2 times.
Description of drawings
Figure 1 shows that the optical system diagram of the high temperature resistant high magnification Size Zoom TV of the present invention camera lens;
Figure 2 shows that the embodiment diagrammatic cross-section of the high temperature resistant high magnification Size Zoom TV of the present invention camera lens;
Figure 3 shows that another embodiment diagrammatic cross-section of the high temperature resistant high magnification Size Zoom TV of the present invention camera lens.
Embodiment
For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:
See also shown in Figure 1, a kind of high temperature resistant high magnification Size Zoom TV camera lens of the utility model, the accessory that comprises optical system and be used for optical system is connected, this optical system foremost is fixing group 10, should fixing group 10 comprise sapphire optical window 11, it is positioned at the foremost of whole camera lens, and so-called sapphire is the AL through purifying
2O
3, be the transparent body that does not have color, still calling this material according to people's custom is sapphire, the AL after the purification
2O
3Has optical lens light characteristic near glass; Be provided with the preceding fixed mirror group of forming by lens 12 after the sapphire optical window 11; Should be provided with two moving lens groups 13,14 that can laterally move after the fixing group 10.Wherein, should preceding fixed mirror group 12 comprise 4 lens that connect successively, wherein, first lens 121 are the positive lens that quartz material or sapphire material are made, the negative lens that second lens 122 are made for optical glass, the positive lens that the 3rd lens 123 and the 4th lens 124 are made for optical glass.In addition, in the embodiments of figure 3, should preceding fixed mirror group 12 can comprise 5 lens that connect successively, wherein, the positive lens that first lens 121 are made for sapphire material, second lens 122 are the quartzy positive lens of making, the positive lens that the 3rd lens 123 and the 4th lens 124 are made for optical glass, the negative lens that the 5th lens 125 are made for optical glass.Wherein, these lens can be that spherical surface or one of them optical glass material lens surface are the high order aspheric surface mirrors, and non-spherical lens can obtain better optical imagery, and the concrete parameter of lens can be determined according to the maximum field of view angle of camera lens.Preceding fixed mirror group, it is positioned at the back of sapphire window, is made of 4 independent lens at least, and they are made by quartz, sapphire material and optical glass respectively.Quartz material also have be not less than 1000 the degree high temperature tolerance, and the very little usefulness of its chromatic dispersion it help the optical design of camera lens as the main material of preceding mirror group.Going out high order aspheric surface in the surface working of optical glass wants easily.
This moving lens group 13,14 comprises positive lens, negative lens and the positive lens that order is provided with, the focal length of whole moving lens group is 10-35mm, and, after two moving lens groups 13,14, can be provided with removable optical filter 15 as required, different optical filters has different purposes, neutral decay optical filter is used for reducing system's light transmission, and bandpass filter can effectively be discerned heated steel ingot in the aglow flame.This optical filter is arranged on system is convenience in order to change at last, and this optical filter is not must be provided with in the camera lens.The position 16 of optical imagery among Fig. 1, its locus is immovable all the time when lens focus changes, just the optics length overall of total system is C, is a constant.The moving lens group will make the lens combination that needs two motions at least in certain fixed position in space as the plane all-the-time stable of camera lens move according to the optical axis of certain rule along camera lens in the process that lens focus changes.All adopt the lens of some gummeds in before this design for the aberration of corrective system, but balsaming lens can not withstand high temperatures, adopts complete discrete form to help system and bears high temperature environment.
Continuous see also shown in Figure 2, structural profile synoptic diagram for a kind of embodiment of the utility model, wherein be used for the accessory that optical system connects is comprised: the sapphire parts 21 of inlaying sapphire optical window 11, these sapphire parts are that stainless steel material is made, the sapphire optical window is embedded in wherein, and, this sapphire optical window 11 can be truncated cone, its conical surface is used for being connected with stainless steel sapphire parts 21, two parallel planes are through optical polish, light enters from the plane on the left side from the plane on the right and penetrates, and it can tolerate the bombardment with 1500 degree high-temperature dusts; These sapphire parts 21 connect the lens barrel 22 that is inlaid with preceding fixed mirror group 12, this lens barrel 22 can be by having the stationkeeping of certain flexible threaded ring 23 with all lens, lens barrel is wherein made by stainless steel material, and trim ring is made with resilient aldary; Lens barrel 22 connects camera lens main body 24, the camera lens main body 24 ccontaining motion constituent elements 28,29 that are provided with moving lens group 13,14, connect after this camera lens main body 24 and be used for the mount pad 211 that is connected with television camera, this mount pad 211 can be a threaded block, is connected with the internal thread of television camera by it.Camera lens main body 24 also comprises cam 26 and driving wheel 25, and this driving wheel 25 drives cam 26 and rotates, and motion constituent element 28,29 connects dialling of can sliding and follows closely 27,210 in cam 26 grooves.Driving wheel 25 can connect in order to drive the gear motor assembly of driving wheel, also can connect the driving handwheel, perhaps drives with other form.Removable circular filter 212 among Fig. 2 is optionally to install also and can not install according to the needs that use, can optical filter be fixed in the optical filtering film trap by threaded ring 213, this threaded ring 213 is placed in and guarantees can pack at any time optical filter in the mount pad when optical filter not being installed.
See also shown in Figure 3, be another specific embodiment of the present utility model, wherein, more comprise the second fixing group 30, fixing group is fixing the group and second fixing the group to fixing group before long Jiao before the wide-angle, this second fixing group 30 comprises sapphire optical window 341, be provided with after the sapphire optical window 341 by lens forms second before fixed mirror group 20, this second fixing group 30 is organized 10 and is connected with fixing by the switching device shifters 32 controlling fixing group 10 and the second fixing group 30 and switch mutually.Utilize switching device shifter 32 can guarantee that at a time the fixing group of fixing group 10 and second 30 can only have one in light path in these two, and rely on the guarantee of switching device shifter 32 to can be good at locating optical axis, fixing the group 10 and second fixing group 30 can be subjected to the driving incision of external force and cut out, the process of switching is just finished in the very short time, guarantees that one of them is placed in the light path.Wherein, the switching of fixing the group 10 and second fixing group 30 has a lot of methods, is all prior art, no longer gives unnecessary details herein.
In the present embodiment, that fixes group 10 should preceding fixed mirror group 12 can comprise 5 lens that connect successively, wherein, the positive lens that first lens 121 are made for sapphire material, second lens 122 are the quartzy positive lens of making, the positive lens that the 3rd lens 123 and the 4th lens 124 are made for optical glass, the negative lens that the 5th lens 125 are made for optical glass.And fixed mirror group 20 comprises 4 lens that connect according to this before second in this second fixing group 30, wherein, first lens are the positive lens that quartz material or sapphire material are made, second lens are the negative lens that optical glass is made, the 3rd lens and the 4th lens are the positive lens that optical glass is made, this first fixed mirror group focal length is 4.5-10mm, and this second fixed mirror group focal length is 20-35mm.Like this, when fixing group enters light path before the wide-angle of fixing group, for television cameras, can obtain 2.8-14 focal length numerical value; When fixing group before long Jiao who switches to the second fixed mirror group, at this moment the focal length variations scope of camera lens is 12-60mm.Its focal length variations scope is exactly 2.8-60mm for whole camera lens like this, and zoom ratio is above 20 times.
As mentioned above, the utility model is novel, and is simple for structure, easy to use, is easy to make.Therefore the utility model provides a kind of high temperature high magnification Size Zoom TV camera lens, so, offer the application of utility model patent in accordance with the law; Yet, shown in the implementation and accompanying drawing that the utility model is above, be one of the utility model preferred embodiment, be not to limit to the utility model with this, be with, such as with approximate, identical person such as structure of the present utility model, device, feature, all should belong to of the present utility model founding within purpose and the claim.
Claims (10)
1, a kind of high temperature resistant high magnification Size Zoom TV camera lens, the accessory that comprises optical system and be used for optical system is connected, it is characterized in that, this optical system foremost is fixing group, should fixing group comprise the sapphire optical window, be provided with the preceding fixed mirror group of forming by lens after the sapphire optical window; Should be provided with two moving lens groups that can laterally move after the fixing group.
2, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1, it is characterized in that, comprise the second fixing group, this second fixing group comprises the sapphire optical window, be provided with after the sapphire optical window by lens forms second before the fixed mirror group, this second fixing group is connected with fixing to organize by the switching device shifter controlling fixing group and the second fixing group and switch mutually.
3, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1 or 2, it is characterized in that, should preceding fixed mirror group comprise 4 lens that connect successively, wherein, first lens are the positive lens that quartz material or sapphire material are made, second lens are the negative lens that optical glass is made, and the 3rd lens and the 4th lens are the positive lens that optical glass is made.
4, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1 or 2, it is characterized in that, should preceding fixed mirror group comprise 5 lens that connect successively, wherein, first lens are the positive lens that sapphire material is made, second lens are the quartzy positive lens of making, and the 3rd lens and the 4th lens are the positive lens that optical glass is made, and the 5th lens are the negative lens that optical glass is made.
5, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 4, it is characterized in that, this second preceding fixed mirror group comprises 4 lens that connect according to this, wherein, first lens are the positive lens that quartz material or sapphire material are made, and second lens are the negative lens that optical glass is made, and the 3rd lens and the 4th lens are the positive lens that optical glass is made, this first fixed mirror group focal length is 4.5-10mm, and this second fixed mirror group focal length is 20-35mm.
6, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1 is characterized in that, this moving lens group comprises positive lens, negative lens and the positive lens that order is provided with, and the focal length of whole moving lens group is 10-35mm.
7, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1 is characterized in that, is provided with removable optical filter after two moving lens groups.
8, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 1, it is characterized in that, this accessory comprises: the sapphire parts of inlaying the sapphire optical window, these sapphire parts connect the lens barrel that is inlaid with preceding fixed mirror group, lens barrel connects the camera lens main body, the ccontaining motion constituent element that is provided with the moving lens group of camera lens main body connects after this camera lens main body and is used for the mount pad that is connected with television camera, the ccontaining threaded ring that is used to install optical filter in the inside of end in addition of mount pad.
9, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 8 is characterized in that the camera lens main body also comprises cam and driving wheel, and this driving wheel drives cam rotation, and the motion constituent element connects the nail of dialling that can slide in cam path.
10, high temperature resistant high magnification Size Zoom TV camera lens as claimed in claim 9 is characterized in that, driving wheel connects in order to drive the gear motor assembly of driving wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201349931U CN201269945Y (en) | 2008-09-09 | 2008-09-09 | High temperature resistant high magnification zooming television lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201349931U CN201269945Y (en) | 2008-09-09 | 2008-09-09 | High temperature resistant high magnification zooming television lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201269945Y true CN201269945Y (en) | 2009-07-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201349931U Expired - Fee Related CN201269945Y (en) | 2008-09-09 | 2008-09-09 | High temperature resistant high magnification zooming television lens |
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| Country | Link |
|---|---|
| CN (1) | CN201269945Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969924A (en) * | 2013-02-04 | 2014-08-06 | 陈国诚 | Embedded IR-CUT lens |
| CN104181669A (en) * | 2014-08-18 | 2014-12-03 | 山东神戎电子股份有限公司 | Large-zoom-ratio zooming laser illuminator |
| CN104199169A (en) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | Electric lens diaphragm unit |
| CN104199235A (en) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | Lens adapter for single-lens reflex camera |
| US9599787B2 (en) | 2011-12-27 | 2017-03-21 | Tera Xtal Technology Corporation | Using sapphire lens to protect the lens module |
-
2008
- 2008-09-09 CN CNU2008201349931U patent/CN201269945Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9599787B2 (en) | 2011-12-27 | 2017-03-21 | Tera Xtal Technology Corporation | Using sapphire lens to protect the lens module |
| CN103969924A (en) * | 2013-02-04 | 2014-08-06 | 陈国诚 | Embedded IR-CUT lens |
| CN104181669A (en) * | 2014-08-18 | 2014-12-03 | 山东神戎电子股份有限公司 | Large-zoom-ratio zooming laser illuminator |
| CN104199169A (en) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | Electric lens diaphragm unit |
| CN104199235A (en) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | Lens adapter for single-lens reflex camera |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 |