CN108646375A - A kind of knob infrared lens focus adjusting mechanism - Google Patents
A kind of knob infrared lens focus adjusting mechanism Download PDFInfo
- Publication number
- CN108646375A CN108646375A CN201810744770.5A CN201810744770A CN108646375A CN 108646375 A CN108646375 A CN 108646375A CN 201810744770 A CN201810744770 A CN 201810744770A CN 108646375 A CN108646375 A CN 108646375A
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- China
- Prior art keywords
- knob
- focusing
- cam
- lens barrel
- fixed seat
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- Pending
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 239000000571 coke Substances 0.000 claims 1
- 230000003287 optical effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
Abstract
The present invention provides a kind of knob infrared lens focus adjusting mechanism, focusing drum including lens barrel and in lens barrel, it is characterized in that, it further include knob Focussing component, the knob Focussing component includes sequentially connected focusing knob, cam knob and fixed seat, the fixed seat bottom end is fixed at the lens barrel outer wall above the focusing drum, the cam knob bottom end is connect by sequentially passing through the connector of lens barrel outer wall above fixed seat lower end and focusing drum with focusing drum, cam knob rotates under the rotation driving of focusing knob, focusing drum is driven to do linear reciprocating motion in lens barrel by connector, the focal length of infrared lens is adjusted；The knob infrared lens focus adjusting mechanism, the adjustment of infrared lens focal length is realized using the focusing mode of knob, solves the problem of when being focused using existing hand operated focalizing mechanism, focus operations are inconvenient, influence the accuracy and focusing efficiency of focusing.
Description
Technical field
The present invention relates to infrared optical system technical fields, and in particular to a kind of knob infrared lens focus adjusting mechanism.
Background technology
Come in fact currently, infrared lens mostly use the hand operated focalizing mechanisms such as cam canister and guide pin linkage, screw thread and guide pin linkage
The adjustment of existing infrared lens focal length, to obtain clearly image, as infrared optical system focal length larger (>=75mm), due to
Eyeglass bore is big, and the volume of corresponding focus adjusting mechanism is larger, is focused using existing hand operated focalizing mechanism, can give focusing behaviour
It makes troubles, influences the accuracy and focusing efficiency of focusing.
Invention content
In order to overcome the deficiencies of existing technologies, the present invention provides a kind of knob infrared lens focus adjusting mechanism, using knob
The focusing mode of formula realizes the adjustment of infrared lens focal length, solve using existing hand operated focalizing mechanism focused when, because red
Outer optical system focal length is larger, and the volume of corresponding focus adjusting mechanism is larger so that focus operations are inconvenient, influence the accuracy of focusing
And the problem of focusing efficiency.
In order to achieve the above object, the present invention adopts the following technical scheme that realization：
A kind of knob infrared lens focus adjusting mechanism, including lens barrel and the focusing drum in lens barrel, further include knob
Focussing component, the knob Focussing component include sequentially connected focusing knob, cam knob and fixed seat, institute
The lens barrel outer wall that fixed seat bottom end is fixed above the focusing drum is stated, the cam knob bottom end is by sequentially passing through fixation
The connector of lens barrel outer wall is connect with focusing drum above seat lower end and focusing drum, and cam knob is under the rotation driving of focusing knob
Rotation drives focusing drum to do linear reciprocating motion in lens barrel, is adjusted to the focal length of infrared lens by connector.
Preferably, the connector is guide pin, and fixed seat lower end and focusing are sequentially passed through from top to bottom in the middle part of the guide pin
Cylinder top lens barrel outer wall, the upper end are connect with cam knob, and lower end is connect with focusing drum.
Preferably, the lower surface of the cam knob opens up cam path, the fixed seat bottom end and focusing drum top lens barrel
Outer wall opens up guide groove, and the guide pin upper end is embedded in the cam path, is sequentially passed through from top to bottom in the middle part of the guide pin solid
The guide groove that lens barrel outer wall opens up above reservation lower end and focusing drum, guide pin lower end are connect with focusing drum, and guide pin is in cam knob
It is moved along the cam curve of cam path under the action of rotary force, drives the stroke range that focusing drum is limited in guide groove in lens barrel
Linear reciprocating motion is inside done, the focal length of infrared lens is adjusted.
Preferably, the cam curve of the cam path is helix.
Preferably, the focusing knob is connect by trip bolt and sunk screw with cam knob.
Preferably, the cam knob is connect by retainer plate with fixed seat.
Preferably, the bottom end of the fixed seat is fixed at the lens barrel outer wall above the focusing drum by sunk screw.
With immediate prior art ratio, technical scheme of the present invention has following advantageous effect：
The present invention provides a kind of knob infrared lens focus adjusting mechanisms, and cam knob is under the rotation driving of focusing knob
Rotation drives focusing drum to do linear reciprocating motion in lens barrel, is adjusted to the focal length of infrared lens, used by connector
The focusing mode of knob realizes the adjustment of infrared lens focal length, solve using existing hand operated focalizing mechanism focused when,
Because infrared optical system focal length is larger, the volume of corresponding focus adjusting mechanism is larger so that focus operations are inconvenient, influence the standard of focusing
The problem of true property and focusing efficiency.
Description of the drawings
Fig. 1 is the structural schematic diagram of existing infrared lens hand operated focalizing mechanism；
Fig. 2 is the structural schematic diagram of the knob infrared lens focus adjusting mechanism in one embodiment of the present invention；
Wherein, 1- lens barrels；3- focusing knobs；4- trip bolts；5- retainer plates；6- guide pins；7- sunk screws；8- cams revolve
Button；9- fixed seats；10- focusing drums；12- focusing handwheels；13- cam canisters.
Specific implementation mode
Technical scheme of the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is the hand operated focalizing mechanism to be linked using cam canister 13 and guide pin, and the focal length of the infrared lens is 75mm, from figure
As can be seen that eyeglass bore is big, the volume of corresponding focus adjusting mechanism is larger, if carrying out focusing behaviour with hand twisting focusing handwheel 12
Make, it is relatively difficult, it is inconvenient.
As shown in Fig. 2, be a kind of knob infrared lens focus adjusting mechanism provided by the invention, including lens barrel 1 and be set to mirror
Focusing drum 10 in cylinder, further includes knob Focussing component, the knob Focussing component include focusing knob 3,
Cam knob 8 and fixed seat 9, the focusing knob 8 is connect by trip bolt 4 and sunk screw 7 with cam knob 8, described
Cam knob 8 is connect by retainer plate 5 with fixed seat 9, and 9 bottom end of the fixed seat is fixed at the tune by sunk screw 7
1 outer wall of lens barrel of 10 top of burnt cylinder, 8 bottom end of the cam knob is by sequentially passing through 10 top of 9 lower end of fixed seat and focusing drum
The connector of 1 outer wall of lens barrel is connect with focusing drum 10, and cam knob 8 rotates under the rotation driving of focusing knob 3, passes through connection
Part drives focusing drum 10 to do linear reciprocating motion in lens barrel 1, is adjusted to the focal length of infrared lens；
As a preferred embodiment, the connector is guide pin 6,6 middle part of the guide pin is passed through successively from top to bottom
1 outer wall of 9 lower end of reservation and 10 top lens barrel of focusing drum is fastened, the upper end is connect with cam knob 8, and lower end connects with focusing drum 10
It connects；
As a preferred embodiment, the lower surface of the cam knob 8 opens up cam path, 9 bottom of the fixed seat
End and 10 top lens barrel of focusing drum, 1 outer wall open up guide groove, and 6 upper end of the guide pin is embedded in the cam path, the guide pin 6
The guide groove that middle part sequentially passes through 9 lower end of fixed seat from top to bottom and 10 top lens barrel of focusing drum, 1 outer wall opens up, 6 lower end of guide pin
It is connect with focusing drum 10, guide pin 6 moves under the action of 8 rotary force of cam knob along the helix of cam path, drives focusing
The stroke range that cylinder 10 is limited in guide groove does linear reciprocating motion in lens barrel 1, is adjusted to the focal length of infrared lens, adjusts
It is burnt easy to operate, and substantially increase accuracy and the focusing of focusing.
The above embodiments are merely illustrative of the technical scheme of the present invention and are not intended to be limiting thereof, although with reference to above-described embodiment pair
The present invention is described in detail, those of ordinary skill in the art still can to the present invention specific implementation mode into
Row modification either equivalent replacement these without departing from any modification of spirit and scope of the invention or equivalent replacement, applying
Within the claims of the pending present invention.
Claims (7)
1. a kind of knob infrared lens focus adjusting mechanism, including lens barrel and the focusing drum in lens barrel, which is characterized in that also wrap
Include knob Focussing component, the knob Focussing component include sequentially connected focusing knob, cam knob and
Fixed seat, the fixed seat bottom end are fixed at the lens barrel outer wall above the focusing drum, the cam knob bottom end by according to
The connector of the secondary lens barrel outer wall above fixed seat lower end and focusing drum is connect with focusing drum, and cam knob is in focusing knob
The lower rotation of rotation driving, drives focusing drum to do linear reciprocating motion in lens barrel by connector, to the focal lengths of infrared lens into
Row adjustment.
2. a kind of knob infrared lens focus adjusting mechanism as described in claim 1, which is characterized in that the connector is to lead
Nail, the guide pin middle part sequentially pass through lens barrel outer wall above fixed seat lower end and focusing drum from top to bottom, and the upper end is revolved with cam
Button connects, and lower end is connect with focusing drum.
3. a kind of knob infrared lens focus adjusting mechanism as claimed in claim 2, which is characterized in that under the cam knob
Surface opens up cam path, and lens barrel outer wall opens up guide groove above the fixed seat bottom end and focusing drum, and the guide pin upper end is embedded
In the cam path, lens barrel outer wall above fixed seat lower end and focusing drum is sequentially passed through in the middle part of the guide pin from top to bottom and is opened up
Guide groove, guide pin lower end connect with focusing drum, and guide pin is under the action of cam knob rotary force along the cam of cam path song
Line moves, and drives the stroke range that focusing drum is limited in guide groove to do linear reciprocating motion in lens barrel, to the coke of infrared lens
Away from being adjusted.
4. a kind of knob infrared lens focus adjusting mechanism as claimed in claim 3, which is characterized in that the cam of the cam path
Curve is helix.
5. a kind of knob infrared lens focus adjusting mechanism as described in claim 1, which is characterized in that the focusing knob passes through
Trip bolt and sunk screw are connect with cam knob.
6. a kind of knob infrared lens focus adjusting mechanism as described in claim 1, which is characterized in that the cam knob passes through
Retainer plate is connect with fixed seat.
7. a kind of knob infrared lens focus adjusting mechanism as described in claim 1, which is characterized in that the bottom end of the fixed seat
The lens barrel outer wall being fixed at by sunk screw above the focusing drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744770.5A CN108646375A (en) | 2018-07-09 | 2018-07-09 | A kind of knob infrared lens focus adjusting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810744770.5A CN108646375A (en) | 2018-07-09 | 2018-07-09 | A kind of knob infrared lens focus adjusting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108646375A true CN108646375A (en) | 2018-10-12 |
Family
ID=63750744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810744770.5A Pending CN108646375A (en) | 2018-07-09 | 2018-07-09 | A kind of knob infrared lens focus adjusting mechanism |
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| CN (1) | CN108646375A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335910Y (en) * | 2009-01-07 | 2009-10-28 | 泉州市东南光电有限公司 | Zoom lens with large range from 5.0mm to 105.0mm |
| CN203502666U (en) * | 2013-09-11 | 2014-03-26 | 南京英星光学仪器有限公司 | CCD conversion interface lens |
| CN103744163A (en) * | 2013-12-20 | 2014-04-23 | 河北汉光重工有限责任公司 | High-precision view field switching mechanism |
| CN205507191U (en) * | 2016-02-02 | 2016-08-24 | 南通德尔塔光学有限公司 | Lamp device is taken in side focusing of gun sight |
| CN207232507U (en) * | 2017-10-19 | 2018-04-13 | 鹰潭市永威光电仪器有限公司 | A kind of CCD translation interfaces camera lens |
-
2018
- 2018-07-09 CN CN201810744770.5A patent/CN108646375A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201335910Y (en) * | 2009-01-07 | 2009-10-28 | 泉州市东南光电有限公司 | Zoom lens with large range from 5.0mm to 105.0mm |
| CN203502666U (en) * | 2013-09-11 | 2014-03-26 | 南京英星光学仪器有限公司 | CCD conversion interface lens |
| CN103744163A (en) * | 2013-12-20 | 2014-04-23 | 河北汉光重工有限责任公司 | High-precision view field switching mechanism |
| CN205507191U (en) * | 2016-02-02 | 2016-08-24 | 南通德尔塔光学有限公司 | Lamp device is taken in side focusing of gun sight |
| CN207232507U (en) * | 2017-10-19 | 2018-04-13 | 鹰潭市永威光电仪器有限公司 | A kind of CCD translation interfaces camera lens |
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181012 |
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| RJ01 | Rejection of invention patent application after publication |