SE503250C2 - Device for keeping lens glass clean, in camera for monitoring traffic in tunnels - Google Patents

Device for keeping lens glass clean, in camera for monitoring traffic in tunnels

Info

Publication number
SE503250C2
SE503250C2 SE9401633A SE9401633A SE503250C2 SE 503250 C2 SE503250 C2 SE 503250C2 SE 9401633 A SE9401633 A SE 9401633A SE 9401633 A SE9401633 A SE 9401633A SE 503250 C2 SE503250 C2 SE 503250C2
Authority
SE
Sweden
Prior art keywords
plastic film
camera
lens
tunnels
cassette
Prior art date
Application number
SE9401633A
Other languages
Swedish (sv)
Other versions
SE9401633D0 (en
SE9401633L (en
Inventor
Michael Westin
Original Assignee
Michael Westin
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Michael Westin filed Critical Michael Westin
Priority to SE9401633A priority Critical patent/SE503250C2/en
Publication of SE9401633D0 publication Critical patent/SE9401633D0/en
Publication of SE9401633L publication Critical patent/SE9401633L/en
Publication of SE503250C2 publication Critical patent/SE503250C2/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00Methods preventing fouling
    • B08B17/02Preventing deposition of fouling or of dust
    • B08B17/04Preventing deposition of fouling or of dust by using removable coverings

Landscapes

  • Accessories Of Cameras (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Lens Barrels (AREA)

Abstract

The device is for cleaning a lens glass (2) for a camera (9) for monitoring in traffic tunnels and involves a plastics film (5) which is displaceably arranged in front of the lens glass. After becoming dirty the film is replaceable by one which is clean by moving it a distance in front of the lens glass which at least corresponds to the glass dia. The dirty plastics film is rolled on to a collecting roller (7) and simultaneously a clean plastics film is unrolled from a storage roller (6).

Description

503 250 ytterkanter med lister av textil eller syntet mot vilka plastfilmen löper. Stegmotorn drar plastfilmen så långt som erfordras för att en ren, ny plastfilm ska komma in över siktfältet. På plastfilmen kan vidare markeringar finnas som för en operatör via monitor markerar när byte av plastfilm behövs. 503 250 outer edges with strips of textile or synthetic against which the plastic film runs. The stepper motor pulls the plastic film as far as is required for a clean, new plastic film to enter over the field of view. On the plastic film, there may also be markings that for an operator via monitor mark when a change of plastic film is needed.

Uppfinningen beskrivs närmare nedan med hjälp av ett före- draget utföringsexempel under hänvisning till bifogade ritning, på vilken fig. 1 __visar schematiskt ett kamerahus med en rengö- ringsanordning enligt uppfinningen sett ovani- från och fig. 2 visar det i fig. 1 avbildade kamerahuset sett framifrån.The invention is described in more detail below by means of a preferred embodiment with reference to the accompanying drawing, in which Fig. 1 schematically shows a camera housing with a cleaning device according to the invention seen from above and Fig. 2 shows the camera housing shown in Fig. 1. seen from the front.

Såsom framgår av ritningen innefattar anordningen 1 enligt ett föredraget utföringsexempel av föreliggande uppfinning för rengöring av ett objektivglas 2 eller ett framför detta skyddande täckglas 3 en stegmotor 4 som stegvis är avsedd att dra fram en plastfilm 5 från en förràdsrulle 6 med ny, ren plastfilm 5 och samtidigt rulla upp smutsig plastfilm 5 på en uppsamlingsrulle 7. Plastfilmen 5 samt de bägge rullarna 6 och 7 kan vara anordnade i en separat kassett 8, vilken är löstagbart fixerbar framför objektivglaset 2 eller täckglaset 3.As can be seen from the drawing, the device 1 according to a preferred embodiment of the present invention for cleaning an objective glass 2 or a protective cover glass 3 therefor comprises a stepping motor 4 which is stepwise intended to pull a plastic film 5 from a supply roll 6 with new, clean plastic film 5 and at the same time roll up dirty plastic film 5 on a collecting roll 7. The plastic film 5 and the two rollers 6 and 7 can be arranged in a separate cassette 8, which is detachably fixable in front of the objective glass 2 or the cover glass 3.

Anordningen 1 är applicerbar tillsamans med en kamera 9 för interntelevision för t.ex. trafikövervakning företrädesvis i trafiktunnlar eller tung industri. Även andra användnings- områden i smutsig miljö kan vara lämpliga. Täckglaset 3 kan utgöra en sida eller del därav i en låda, som tjänar såsom ett avtätat hus 10, i vilket kameran 9 är monterbar pà en i huset 10 befintlig löpskena 16. Huset 10 kan vara tillverkat av plast eller plàt.The device 1 is applicable together with a camera 9 for internal television for e.g. traffic monitoring preferably in traffic tunnels or heavy industry. Other areas of use in a dirty environment may also be suitable. The cover glass 3 can form a side or part thereof in a box, which serves as a sealed housing 10, in which the camera 9 can be mounted on a guide rail 16 present in the housing 10. The housing 10 can be made of plastic or sheet metal.

Plastfilmen 5 är avsedd att anligga mot täckglaset 3 och ta stöd mot detta då krafter utifrån påverkar plastfilmen 5, 3 503 250 som exempelvis kan uppstà vid renspolning av tunnlarna.The plastic film 5 is intended to abut against the cover glass 3 and take support against this as external forces affect the plastic film 5, 3 503 250 which can arise, for example, when rinsing the tunnels.

Plastfilmen 5 löper således över täckglaset 3 och är avtätad mot dess ytterkanter 11 i lister 12 tillverkade av syntet eller textilmaterial. Plastfilmen 5 är medelst en list 13 av syntet eller textilmaterial även avtätad vid övergången till uppsamlingsrullen 7 respektive fràn föràdsrullen 6. Plast- filmen 5 kan utgöras av en genomsynlig, klar folie med en tjocklek pà ca 0,15 mm. För att skydda anordningen 1 kan en skärm 14 vara anordnad ovanför denna i hustes 10 ovankant.The plastic film 5 thus runs over the cover glass 3 and is sealed against its outer edges 11 in strips 12 made of synthetic or textile material. The plastic film 5 is also sealed by means of a strip 13 of synthetic or textile material at the transition to the collecting roll 7 and from the supply roll 6. The plastic film 5 can consist of a transparent, clear foil with a thickness of about 0.15 mm. To protect the device 1, a screen 14 can be arranged above it in the upper edge of the housing 10.

Framdragningen av ny plastfilm 5 sker med hjälp av steg- motorn 4 via en styrsignal antingen automatiskt via tidur eller dator 15 eller manuellt via exempelvis knapptryckning fràn en övervakningscentral. Stegmotorn 4 drar vid komando plastfilmen 5 så långt som erfordras för att ny, ren plast- film 5 skall helt täcka täckglaset 3. Vid slutet av plast- filmen 5, vilken kan ha en längd som räcker önskad tid t.ex. 14 dagar, finns markeringar på densama i siktytan som bety- der att plastfilmen 5 skall bytas och snart är slut. Detta kan då lämpligen göras vid andra reparationer eller lamp- byten i trafiktunneln.The extraction of new plastic film 5 takes place with the aid of the stepper motor 4 via a control signal either automatically via timer or computer 15 or manually via, for example, keystrokes from a monitoring center. At command, the stepper motor 4 pulls the plastic film 5 as far as is required for the new, clean plastic film 5 to completely cover the cover glass 3. At the end of the plastic film 5, which may have a length which is sufficient for the desired time, e.g. 14 days, there are markings on them in the sight surface which means that the plastic film 5 must be replaced and will soon be finished. This can then suitably be done for other repairs or lamp replacements in the traffic tunnel.

Claims (4)

505 250 Patentkrav505 250 Patent claims 1. l. Användning av en i en separat kassett (8) mellan tvà rullar (6,7) förskjutbar plastfilm (5), säsom genomsynligt skydd för objektivglaset (2) eller pá ett framför detsamma skyddande täckglas (3), till en kamera (9) för övervakning i trafiktunnlar, vilket skydd efter nedsmutsning är stegvis utbytbart mot ett rent sådant genom förskjutning av plast- filmen (5) framför kameraobjektivglaset (2) under avrullning från en föràdsrulle (6) och samtidig upprullning pà en rulle (7) med nedsmutsad plastfilm (5) och vilken kassett (8) är löstagbart fixerbar framför objektivglaset (2) och inrymmer de bägge filmrullarna (6,7) sträckande och framför kameraobjektivglaset (2) förskjutbara plastfilmen (5). samt den mellan dessa sig1. l. Use of a plastic film (5) slidable in a separate cassette (8) between two rollers (6,7), as transparent protection for the lens (2) or on a protective cover glass (3) in front of it, to a camera (9) for surveillance in traffic tunnels, which protection after soiling is gradually exchangeable for a clean one by displacing the plastic film (5) in front of the camera lens (2) while unrolling from a supply roll (6) and simultaneous winding on a roll (7) with soiled plastic film (5) and which cassette (8) is removably fixable in front of the lens (2) and accommodates the two film rolls (6,7) extending and the plastic film (5) displaceable in front of the camera lens (2). as well as the one between these ones 2. Användning enligt patentkrav 1, vid vilken täckglaset (3) bildar ett fönster i en låda, som tjänar sàsom ett avtätat hus (10), i vilket kameran (9) är placerad.Use according to claim 1, in which the cover glass (3) forms a window in a box, which serves as a sealed housing (10), in which the camera (9) is placed. 3. Användning enligt patentkrav 1, vid vilken fram- dragning av ren plastfilm (5) i kassetten (8) sker mad hjälp av en stegmoter (4) via en styrsignal antingen automatiskt via tidur eller dator eller manuellt via exempelvis knapp- tryckning fràn en övervakningscentral.Use according to claim 1, in which pure plastic film (5) is drawn into the cassette (8) by means of a stepper motor (4) via a control signal either automatically via timer or computer or manually via, for example, pushing a button from a monitoring center. 4. Användning enligt patentkrav 1, vid vilken plastfilmen (5) innefattar markeringar som för en operatör via monitor visar när byte av plastfilm (5) erfordras.Use according to claim 1, wherein the plastic film (5) comprises markings which show to an operator via monitor when replacement of plastic film (5) is required.
SE9401633A 1994-05-10 1994-05-10 Device for keeping lens glass clean, in camera for monitoring traffic in tunnels SE503250C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9401633A SE503250C2 (en) 1994-05-10 1994-05-10 Device for keeping lens glass clean, in camera for monitoring traffic in tunnels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9401633A SE503250C2 (en) 1994-05-10 1994-05-10 Device for keeping lens glass clean, in camera for monitoring traffic in tunnels

Publications (3)

Publication Number Publication Date
SE9401633D0 SE9401633D0 (en) 1994-05-10
SE9401633L SE9401633L (en) 1995-11-11
SE503250C2 true SE503250C2 (en) 1996-04-29

Family

ID=20393975

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9401633A SE503250C2 (en) 1994-05-10 1994-05-10 Device for keeping lens glass clean, in camera for monitoring traffic in tunnels

Country Status (1)

Country Link
SE (1) SE503250C2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110238090A (en) * 2019-05-22 2019-09-17 上海工程技术大学 A kind of cross-country protective glasses auto cleaning system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015084247A1 (en) 2013-12-05 2015-06-11 Delaval Holding Ab Time-of-flight camera system, robot milking system comprising a time-of-flight camera system and method of operating a time-of-flight camera system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110238090A (en) * 2019-05-22 2019-09-17 上海工程技术大学 A kind of cross-country protective glasses auto cleaning system

Also Published As

Publication number Publication date
SE9401633D0 (en) 1994-05-10
SE9401633L (en) 1995-11-11

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