CN207473167U - A kind of Novel temperature measuring camera lens based on optical passive mode - Google Patents
A kind of Novel temperature measuring camera lens based on optical passive mode Download PDFInfo
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- CN207473167U CN207473167U CN201721547296.4U CN201721547296U CN207473167U CN 207473167 U CN207473167 U CN 207473167U CN 201721547296 U CN201721547296 U CN 201721547296U CN 207473167 U CN207473167 U CN 207473167U
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Abstract
The utility model is related to a kind of Novel temperature measuring camera lenses based on optical passive mode, including body tube and the optical system being arranged in body tube, it is 5.9mm that the optical system, which includes the plano-concave thread form lens A set gradually along light incident direction and the airspace of biconvex thread form lens B, the plano-concave thread form lens A and biconvex thread form lens B,.The lens wearer is few, simple in structure, has the characteristics of object lens of large relative aperture, low distortion and image stabilization, while can make optical axis image stabilization by adjusting manually, apparent, reliable.
Description
Technical field：
The utility model belongs to optical lens technical field more particularly to a kind of Novel temperature measuring mirror based on optical passive mode
Head.
Background technology：
Infrared temperature-test technology in the development of its field of temperature measurement for a long time, occupies certain as a kind of contactless temperature-measuring technology
Share, compared with traditional thermometry, already have many advantages, such as：First, its measurement is contactless, so it does not do
Thermometric field is disturbed, the original distribution of temperature is nor affected on, is showed in accuracy and precision high；Secondly, infrared measurement of temperature do not need to
Measurand temperature, which reaches balance, can directly read relevant temperature, and test speed is exceedingly fast, and can observe in real time, measure excellent
Gesture is big；Again, infrared measurement of temperature can measure the temperature of minimum target, distance above can closely can be remote, and can with night work, fit
Ying Xingqiang；Finally, the range of infrared measurement of temperature is wide, theoretically without the test upper limit.This allows for infrared temperature-test technology power industry, boat
The fields such as its aviation, quality testing, metallurgy have obtained wide model application.But since infrared optical material and mechanical material are in temperature
Thermal deformation can be generated during variation, if therefore the temperature of work acute variation occurs in a short time will cause optical system
Situations such as focal length cataclysm, image planes are elegant, image quality declines, will give birth to therewith.
Utility model content：
The purpose of this utility model is that more than shortcoming is directed to, a kind of low distortion, image stabilization are provided and is had
The Novel temperature measuring camera lens based on optical passive mode of object lens of large relative aperture.
To achieve these goals, the technical solution adopted in the utility model is：It is a kind of based on the novel of optical passive mode
Thermometric camera lens, including body tube and the optical system being arranged in body tube, the optical system is included along light incident direction
The plano-concave thread form lens A and the air of biconvex thread form lens B, the plano-concave thread form lens A and biconvex thread form lens B set gradually
Interval is 5.9mm.
Further, the microscope base being slidably connected with it, the plano-concave thread form lens A and biconvex are arranged in the body tube
Thread form lens B is respectively arranged in microscope base, and trim ring before the front end of the microscope base is screwed with one, the inner ring contact of the preceding trim ring is lived
The front edge of plano-concave thread form lens A is provided with spacer ring between the plano-concave thread form lens A and biconvex thread form lens B, described double
The rear edge contact of convex thread form lens B is lived on the bulge loop of microscope base rear end；The outer sheath of the body tube is equipped with one for driving
The cam sleeve that microscope base slides back and forth.
Further, straight trough is offered on the side of the cam sleeve, skewed slot is offered on the side of the body tube,
A guide pin is equipped between the straight trough and skewed slot, the guide pin is connected firmly across skewed slot end with microscope base, the other end of guide pin with it is convex
Straight trough on wheel sleeve is slidably matched, rotation cam sleeve with pass through guide pin drive microscope base be moved forward and backward.
Further, the side of the cam sleeve offers screw hole, is bolted in the screw hole after focusing fixed
The firmly lock-screw of cam sleeve.
Further, the front end outer side of the body tube is arranged with a rosette being located on front side of cam sleeve；The master
The rear end of lens barrel is fixedly connected with a connecting seat, and the back end outer circumference face of the connecting seat is provided with to be connected with video camera
External screw thread.
Compared with prior art, the utility model has the following effects that：
（1）The camera lens has the characteristics of object lens of large relative aperture, low distortion and image stabilization, while can be made by adjusting manually
Optical axis image stabilization, it is apparent, reliable；
（2）The lens construction is short and small, simple, is convenient for carrying, and has higher economic and practical and reliability.
Description of the drawings：
Fig. 1 is the optical system schematic diagram of the utility model embodiment；
Fig. 2 is the mechanical structure sectional view of the utility model embodiment；
Fig. 3 is the mechanical structure outside schematic diagram of the utility model embodiment；
Fig. 4 is the organigram of body tube in the utility model embodiment.
In figure：
1- body tubes；2- rosettes；3- guide pins；4- cam sleeves；5- countersunk head screws；6- connecting seats；7- microscope bases；8- every
Circle；Trim ring before 9-；10- lock-screws；A- plano-concave thread form lens；B- biconvex thread form lens.
Specific embodiment:
The utility model is described in more detail with reference to the accompanying drawings and detailed description.
As shown in Figs 1-4, a kind of Novel temperature measuring camera lens based on optical passive mode of the utility model, including body tube 1 and
The optical system being arranged in body tube 1, the optical system are saturating including the plano-concave thread form set gradually along light incident direction
Mirror A and the airspace of biconvex thread form lens B, the plano-concave thread form lens A and biconvex thread form lens B are 5.9mm；The camera lens
Number of lenses is less, and structure size greatly shortens, so as to convenient for users to carrying.
In the present embodiment, be arranged with the microscope base 7 being slidably connected with it in the body tube 1, the plano-concave thread form lens A and
Biconvex thread form lens B is respectively arranged in microscope base 7, trim ring 9 before the front end of the microscope base 7 is screwed with one, the preceding trim ring 9 it is interior
Circle contact lives the front edge of plano-concave thread form lens A, be provided between the plano-concave thread form lens A and biconvex thread form lens B every
Circle 8, the rear edge contact of the biconvex thread form lens B is lived on the bulge loop of 7 rear end of microscope base；The outside of the body tube 1 is arranged
There is a cam sleeve 4 for microscope base 7 to be driven to slide back and forth.
In the present embodiment, straight trough is offered on the side of the cam sleeve 4, is offered on the side of the body tube 1
Skewed slot is equipped with a guide pin 3 between the straight trough and skewed slot, the guide pin 3 is connected firmly across skewed slot end with microscope base 7, guide pin 3 it is another
One end is slidably matched with the straight trough on cam sleeve 4, rotation cam sleeve 4 with by guide pin 3 drive microscope base 7 be moved forward and backward；It leads
It follows closely 3 movement locus to be limited jointly by the skewed slot on the straight trough on cam sleeve 4 and body tube 1, reflection to microscope base 7 shows as front and rear
Mobile, the helical pitch of skewed slot ensure that the feel of focusing on body tube 1.
In the present embodiment, the side of the cam sleeve 4 offers screw hole, is bolted in the screw hole after focusing solid
Surely the lock-screw 10 of cam sleeve 4 is lived, 7 position of microscope base does not shift after the completion of ensureing focusing.
In the present embodiment, the outer surface of the cam sleeve 4 is provided with texture, to increase the frictional force of rotation focusing, from
And facilitate focusing.
In the present embodiment, the front end outer side of the body tube 1 is arranged with a rosette 2 for being located at 4 front side of cam sleeve, dress
Circlets 2 plates coating Red mark rotational structure, and plays the role of beauty.
In the present embodiment, the rear end of the body tube 1 is fixedly connected by countersunk head screw 5 with a connecting seat 6, the connection
The back end outer circumference face of seat 6 is provided with the outer spiral shell to be connected with video camera；Connecting seat 6 is using Hpb59-1 materials and plates
Chromium plate ensures to also increase its wear-resistant strength while its glossiness so that connecting seat 6 is not in mill in use
Demoulding problem of oxidation is damaged, increases the experience of client.
In the present embodiment, 2 lens, 4 faces of optical system composition are spherical surface, are extremely easy to process, and be conducive to
Batch production, cost of labor substantially reduce, and the cost of camera lens also decreases, and is the economical camera lens of money.
In the present embodiment, the optical system being made of above-mentioned lens set has reached following optical index：
1) focal length：f′=5.6mm；
2) relative aperture F：1.0；
3) field angle：2w=28°；
4) resolution ratio：Can be with 80 × 80,34 μm of detector video cameras are adapted to；
5) total length of light path ∑≤44mm, optics rear cut-off distance l ' >=10mm；
6) it is applicable in spectral line range：8μm~12μm；
7）Each lens parameters, as shown in Table 1：
Table one：
Aspheric mask body face type equation is as follows：
Wherein：
C=1/R in S2, R=20, k=0, A0=0, A1=3.349E-008, A2=- 6.285E-013, A3=- 2.035E-014；
C=1/R in S3, R=16, k=0, A0=0, A1=3.349E-008, A2=- 6.285E-013, A3=- 2.035E-014.
In the present embodiment, which carried out 8~12 μm of wide spectral ranges aberration correction peace in optical design
Weighing apparatus experiment, makes the camera lens all have excellent image quality on wide spectral range, realizes that its wide spectrum is confocal, and such camera lens exists
Middle long wave limit can blur-free imaging；The optical glass material for selecting high refractive index, dispersion low, then by designing and optimizing, just
The various aberrations of optical lens can be corrected, make resolution of lens higher, relative aperture bigger, distortion more low；Distortion becomes smaller,
1% hereinafter, having better control relative to old structural aberration；In structure design, both can guarantee camera lens concentricity,
Precision and axial position are accurate, and the structure of camera lens can be made lighter, beautiful.Microscope base is driven to do front and rear fortune by cam sleeve
Dynamic mode realizes the imaging performance that camera lens adjusts optical system in different temperatures by microscope base movement, so as to
Obtain high-quality imaging at different temperatures.
The above is only the preferred embodiment of the present invention, it is all done according to present utility model application the scope of the claims it is equal
Deng variation and modification, it should all belong to the covering scope of the utility model.
Claims (5)
1. a kind of Novel temperature measuring camera lens based on optical passive mode, it is characterised in that：Including body tube and it is arranged in body tube
Optical system, the optical system includes the plano-concave thread form lens A set gradually along light incident direction and biconvex thread form is saturating
The airspace of mirror B, the plano-concave thread form lens A and biconvex thread form lens B are 5.9mm.
2. a kind of Novel temperature measuring camera lens based on optical passive mode according to claim 1, it is characterised in that：The primary mirror
The microscope base being slidably connected with it is arranged in cylinder, the plano-concave thread form lens A and biconvex thread form lens B are respectively arranged in microscope base
Interior, trim ring before the front end of the microscope base is screwed with one, the inner ring contact of the preceding trim ring lives the front end edge of plano-concave thread form lens A
Edge is provided with spacer ring, the rear edge of the biconvex thread form lens B between the plano-concave thread form lens A and biconvex thread form lens B
Contact is lived on the bulge loop of microscope base rear end；The outer sheath of the body tube is equipped with one for driving the cam sleeve that microscope base slides back and forth
Cylinder.
3. a kind of Novel temperature measuring camera lens based on optical passive mode according to claim 2, it is characterised in that：The cam
Straight trough is offered on the side of sleeve, skewed slot is offered on the side of the body tube, is equipped between the straight trough and skewed slot
One guide pin, the guide pin are connected firmly across skewed slot end with microscope base, and the straight trough on the other end and cam sleeve of guide pin is slidably matched, and are turned
Moving cam sleeve with pass through guide pin drive microscope base be moved forward and backward.
4. a kind of Novel temperature measuring camera lens based on optical passive mode according to claim 3, it is characterised in that：The cam
The side of sleeve offers screw hole, is bolted with to fix the lock-screw of cam sleeve after focusing in the screw hole.
5. a kind of Novel temperature measuring camera lens based on optical passive mode according to claim 2, it is characterised in that：The primary mirror
The front end outer side of cylinder is arranged with a rosette being located on front side of cam sleeve；The rear end of the body tube is fixedly connected with a connecting seat,
The back end outer circumference face of the connecting seat is provided with the external screw thread to be connected with video camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547296.4U CN207473167U (en) | 2017-11-20 | 2017-11-20 | A kind of Novel temperature measuring camera lens based on optical passive mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721547296.4U CN207473167U (en) | 2017-11-20 | 2017-11-20 | A kind of Novel temperature measuring camera lens based on optical passive mode |
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| CN207473167U true CN207473167U (en) | 2018-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656352A (en) * | 2017-11-20 | 2018-02-02 | 福建福光天瞳光学有限公司 | A kind of Novel temperature measuring camera lens and its method of work based on optical passive mode |
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2017
- 2017-11-20 CN CN201721547296.4U patent/CN207473167U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107656352A (en) * | 2017-11-20 | 2018-02-02 | 福建福光天瞳光学有限公司 | A kind of Novel temperature measuring camera lens and its method of work based on optical passive mode |
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