CN107942604A - Dust-proof double optical filtering switch - Google Patents
Dust-proof double optical filtering switch Download PDFInfo
- Publication number
- CN107942604A CN107942604A CN201711371438.0A CN201711371438A CN107942604A CN 107942604 A CN107942604 A CN 107942604A CN 201711371438 A CN201711371438 A CN 201711371438A CN 107942604 A CN107942604 A CN 107942604A
- Authority
- CN
- China
- Prior art keywords
- dust
- switch
- support bar
- optical filtering
- filter plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 34
- 238000001914 filtration Methods 0.000 title claims abstract description 19
- 239000000428 dust Substances 0.000 claims abstract description 42
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000956 alloy Substances 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
- Push-Button Switches (AREA)
Abstract
The present invention relates to security monitoring technology, especially a kind of dust-proof double optical filtering switch.A kind of dust-proof double optical filtering switch, including switch upper cover, switch base, the light hole on switch base, optical filter, the filter plate carrier of accommodating optical filter, power set；Switch base intracavity is equipped with filter plate carrier support bar, the switch base intracavity is equipped with dust ring close to the edge of light hole, and the top of the top filter carrier supported bar of the dust ring is located at same level or the top less than filter plate carrier support bar.The beneficial effect that the present invention obtains is：By being equipped with dust ring close to thang-kng hole site in base intracavity, dust from light hole fall into when, dust ring forms a barricade, prevents dust from dropping on sensitive chip；The configuration of the present invention is simple, dust ring and switch base are integrally formed, and without increasing other processes and material, are saved cost, are adapted to high-volume to promote.
Description
Technical field
The present invention relates to security monitoring technology, especially a kind of dust-proof double optical filtering switch.
Background technology
Under normal conditions, camera lens module includes camera lens, microscope base, double optical-filter switchers, drive circuit and sensitive chip.Mirror
The main function of head is exactly to filter off black light, allows visible ray to enter, and project on sensor.
The double optical-filter switchers of IR-CUT be by：Optical filter+power section is formed.The original of the double optical-filter switchers of IR-CUT
Reason is by one piece of circuit control panel and switch, and when the light on daytime is abundant, circuit control panel, which is driven in switch, to be switched
Work to cutoff filter, switch restores true color, and when night insufficient light, cutoff filter is automatic
Remove, full spectrum light glass is started to work, and can be sensed the auxiliary light of evening infrared lamp, switch is made full use of all light
Line, so that substantially increasing the low of thermal camera shines performance, whole picture clear and natural.
But the camera that some precision prescribeies are high and small, caused by reducing light wave multipass light-transmitting component
Light losing and distortion, eliminate camera lens, and directly double optical filtering switch filter, and the optical filter of double optical filters needs to switch,
It is necessarily required to leave the space for smooth movement in handoff procedure, dust can enter module internal, existing city by this space
Such IR CUT designs are mostly used in safety monitoring on face, are not considered and are designed to dust-proof, and the optical filter of switch carries
Body has with switch base causes dust easily directly to fall on sensitive chip compared with big gap.
The content of the invention
The object of the present invention is to provide a kind of dust-proof double optical filtering switch, reduce between filter plate carrier and switch base
Gap, prevent dust from directly dropping on sensitive chip.It is as follows based on the purpose, the technical solution adopted by the present invention：
A kind of dust-proof double optical filtering switch, including switch upper cover, switch base, the thang-kng on switch base
Hole, optical filter, the filter plate carrier of accommodating optical filter, power set；The switch base intracavity is equipped with filter plate carrier branch
Stay, the switch base intracavity are equipped with dust ring, the top filter carrier of the dust ring close to the edge of light hole
The top of support bar is located at same level or the top less than filter plate carrier support bar.Extraneous dust enters from light hole
When, dust ring forms one of barricade, dust gear between light hole and dust ring, forms one of barrier.Dust ring highest and
It is concordant between filter plate carrier support bar, the support bar of filter plate carrier can also be slightly below, while dust is blocked, not shadow
Ring the assembling between switch base and switch upper cover.
Further, the filter plate carrier support bar is two, is arc-shaped；It is included close to light hole first
Stay, and second support bar opposite with the first support bar, the both ends of first support bar are close to the left and right of switch base
Edge.The shape track of filter plate carrier support bar and the appearance and size of filter plate carrier are engaged, power set driving optical filter
When carrier moves, the edge of filter plate carrier is all the time on filter plate carrier support bar.Support bar plays support filter plate carrier
Effect and serve as filter plate carrier tracks effect.
Further, the circular arc of two filter plate carrier support bars is isocentric circular arc.Support bar is set using concentric circles, filter
During mating plate carrier movement, its edge on support bar, the movement locus of filter plate carrier and the support bar of filter plate carrier
Arc length is identical.
Further, switch base one end opposite with filter plate carrier support bar is equipped with power set accommodating cavity
Room.The power set of switch are placed by power chamber resettling, and function division is obvious, opposite to form an enclosure space, to power
Device forms protection, while enhances the intensity of switch base so that switch is unlikely to deform, it is ensured that imaging precision.
Further, the cross section of the power set chamber resettling is rectangle, its outer ledge is provided with " L " type
Supporting rib.Switch chamber resettling relative area is bigger, when wall ratio is relatively thin, the bad phenomenon such as easily produces fracture,
The especially on the corner place of stress concentration, it is easier to occur bad, " L " type supporting rib is set, strengthens chamber resettling
The indoor power set of accommodating cavity are had preferably protective effect by intensity.
Further, the switch base is equipped with through hole close to the second support bar inner opposite end.Filter plate carrier connects
On switch base, axis is set in through hole, under the driving of power set, filter plate carrier is rotated along the axis in through hole, from
And achieve the purpose that optical filter and switch.
Further, the face that the dust ring is connected with switch base is equipped with chamfering.Dust ring and switch base one
Body formed, either casting or injection molding, dust ring wall thickness all have certain limitations, in dust ring and switch base
Intersecting place, stress concentration, if chamfering, dust ring, so setting chamfering, avoids dust ring easily from bottom break
Fracture.
Further, ribs are equipped between the inner surface of dust ring and the switch base.Due to by condition of molding
Limitation, the wall thickness of dust ring is all limited, and a single ring body is easily deformed, and after deformation, will influence dust-proof effect, because
This can be avoided the fracture of dust ring with appropriately designed ribs.
Further, it is equipped with positioning column between the switch upper cover and switch base, the switch upper cover and cuts
Connected between parallel operation base by hook and/or screw.The formation either county of all kinds of buckle is arm-type or circular ring type, he
Function be it is identical, constraint and separation function.Snap connection without other materials, reduce product cost, it is easy to operate, fit
Should as plastic part assembling, product can repeat to remove dress and utilize.Screw connecting structure simple and compact, it is only necessary to which screwdriver just can
Realize dismounting.Screw connects hook connection and cuts both ways, and is selected according to switch upper cover and the material of base and use occasion
Select use.Or two kinds of connection modes are applied in combination.
The beneficial effect that the present invention obtains is：(1) by being equipped with dust ring, dust close to thang-kng hole site in base intracavity
When being fallen into from light hole, dust ring forms a barricade, prevents dust from dropping on sensitive chip；(2) structure letter of the present invention
Single, dust ring and switch base are integrally formed, and without increasing other processes and material, are saved cost, are adapted to high-volume to promote.
Brief description of the drawings
Fig. 1 is double optical filtering switch structure diagrams of the prior art；
Fig. 2 is that switch base of the present invention adds structure diagram after dust ring；
In figure, 11- light holes, 12- filter plate carrier support bars, the first support bars of 121-, the second support bars of 122-, 13-
Dust ring, 14- power set chamber resettling, the supporting rib of 15- " L " type, 16- through holes.
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.
Embodiment 1
As shown in Fig. 2, a kind of dust-proof double optical filtering switch, including switch upper cover, switch base, arranged on switch bottom
Light hole 11 on seat, optical filter, the filter plate carrier of accommodating optical filter, power set；The switch base intracavity is equipped with
Filter plate carrier support bar 12, filter plate carrier support bar 12 are two, are arc-shaped, and are isocentric circular arc, close to thang-kng
11 first support bar 121 of hole, and second support bar 122 opposite with the first support bar 121, the two of first support bar 121
Left and right edges of the end close to switch base；Switch base intracavity is equipped with dust ring 13 close to the edge of light hole 11, dust-proof
The top of the top filter carrier supported bar 12 of ring 13 is located at same level or less than filter plate carrier support bar 12
Top.The face that dust ring 13 is connected with switch base, which is equipped between chamfering, and the inner surface of switch base, is equipped with ribs.
The power set that power set are placed on switch base one end opposite with filter plate carrier support bar 12 house
In chamber 14.The cross section of power set chamber resettling 14 is rectangle, its outer ledge is provided with the supporting rib 15 of " L " type.
Switch base 1 is equipped with through hole 16 close to 122 inner opposite end of the second support bar.Power set drive filter plate carrier along through hole
Axis rotates.
In the present embodiment, dust ring on switch base and the design of switch base integrated and shaping, when design, examine
Consider the intensity and condition of molding of dust ring, to dust-proof ring design ribs and chamfering, integrated molding, when switch assembles,
Manufacturing procedure need not be increased.Switch upper cover and switch base can use plastic injection according to use occasion and customer demand
Shaping or alloy casting.When switch upper cover and base use alloy casting, upper cover and base use spiral shell
Nail connection.When switch upper cover uses the plastic parts of injection molding, when switch base uses alloy cast member, upper cover and base
Between can use screw connect, or one end using screw connect, the other end using hook connection.When lid and bottom on switch
When seat is plastic parts, the screw connection connection mode that either hook connection or screw and hook are combined can be used.
It is complete by above-mentioned description, relevant staff using the above-mentioned desirable embodiment according to the present invention as enlightenment
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to determines its technical scope according to right.
Claims (9)
1. a kind of dust-proof double optical filtering switch, including switch upper cover, switch base, the light hole on switch base
(11), optical filter, houses the filter plate carrier of optical filter, power set；It is characterized in that：The switch base intracavity is equipped with
Filter plate carrier support bar (12), the switch base intracavity are equipped with dust ring (13), institute close to the edge of light hole (11)
The top for stating the top filter carrier supported bar (12) of dust ring (13) is located at same level or less than filter plate carrier
The top of support bar (12).
2. dust-proof double optical filtering switch according to claim 1, it is characterised in that：The filter plate carrier support bar (12)
It is arc-shaped for two；It is included close to (11) first support bar (121) of light hole, and opposite with the first support bar (121)
The second support bar (122), the left and right edges of the both ends of first support bar (121) close to switch base.
3. dust-proof double optical filtering switch according to claim 2, it is characterised in that：Two filter plate carrier support bars (12)
Circular arc be isocentric circular arc.
4. dust-proof double optical filtering switch according to claim 2, it is characterised in that：The switch base is carried with optical filter
The opposite one end of body support bar (12) is equipped with power set chamber resettling (14).
5. dust-proof double optical filtering switch according to claim 4, it is characterised in that：The power set chamber resettling (14)
Cross section be rectangle, its outer ledge is provided with the supporting rib (15) of " L " type.
6. dust-proof double optical filtering switch according to claim 2, it is characterised in that：The switch base is close to second
Stay (122) inner opposite end is equipped with through hole (16).
7. dust-proof double optical filtering switch according to claim 1, it is characterised in that：The dust ring (13) and switch bottom
The connected face of seat is equipped with chamfering.
8. dust-proof double optical filtering switch according to claim 1, it is characterised in that：The dust ring (13) and switch bottom
Ribs are equipped between the inner surface of seat.
9. dust-proof double optical filtering switch according to claim 1, it is characterised in that：The switch upper cover and switch bottom
Positioning column is equipped between seat, is connected between the switch upper cover and switch base by hook and/or screw.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721302736X | 2017-10-09 | ||
| CN201721302736 | 2017-10-09 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107942604A true CN107942604A (en) | 2018-04-20 |
Family
ID=61941245
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721775973.8U Expired - Fee Related CN207742453U (en) | 2017-10-09 | 2017-12-19 | Dust-proof double optical filtering switch |
| CN201711371438.0A Pending CN107942604A (en) | 2017-10-09 | 2017-12-19 | Dust-proof double optical filtering switch |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721775973.8U Expired - Fee Related CN207742453U (en) | 2017-10-09 | 2017-12-19 | Dust-proof double optical filtering switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN207742453U (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151998A (en) * | 2008-12-24 | 2010-07-08 | Toshiba Teli Corp | Camera mount structure |
| TW201107853A (en) * | 2009-08-17 | 2011-03-01 | Hon Hai Prec Ind Co Ltd | Optical filter switching structure |
| CN202995222U (en) * | 2013-01-30 | 2013-06-12 | 苏州文博菲电子科技有限公司 | Double-filter switcher |
| CN206450946U (en) * | 2016-11-20 | 2017-08-29 | 东莞市维斗科技股份有限公司 | Multilayer filter cycloid crisscross motion IR CUT switch |
-
2017
- 2017-12-19 CN CN201721775973.8U patent/CN207742453U/en not_active Expired - Fee Related
- 2017-12-19 CN CN201711371438.0A patent/CN107942604A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010151998A (en) * | 2008-12-24 | 2010-07-08 | Toshiba Teli Corp | Camera mount structure |
| TW201107853A (en) * | 2009-08-17 | 2011-03-01 | Hon Hai Prec Ind Co Ltd | Optical filter switching structure |
| CN202995222U (en) * | 2013-01-30 | 2013-06-12 | 苏州文博菲电子科技有限公司 | Double-filter switcher |
| CN206450946U (en) * | 2016-11-20 | 2017-08-29 | 东莞市维斗科技股份有限公司 | Multilayer filter cycloid crisscross motion IR CUT switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN207742453U (en) | 2018-08-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180420 |