Portable dusting tool
a dusting tool and portability technology, applied in the field of cleaning devices, can solve the problems of sensor exposed lens surface sensor exposed lens surface inevitably being contaminated by atmosphere and airborne impurities, adverse effect of dispersing and not removing dust particles, etc., and achieve the effect of improving lens cleaning capabilities
Inactive Publication Date: 2010-07-29
1317442 ALBERTA
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- Application Information
AI Technical Summary
Benefits of technology
"The invention is a non-scrubbing dusting tool for cleaning the exposed surface of a camera sensor lens in a recessed digital camera sensor chamber. The tool consists of a duster member with a tuft of bristles, a handle, and connector means for attaching the bristles to the handle. The bristles have electrostatic charge built up and are designed to clean the sensor lens without contaminating contact with the camera sensor chamber. The tool can be used in a variety of ways, including direct contact with the sensor lens or sweeping it in a close proximity. The invention provides a simple and effective solution for cleaning the camera sensor lens while avoiding damage to the camera."
Problems solved by technology
Of course, this sensor must remain as clean as possible, since impurities deposited thereon can undesirably alter the final image acquired by the camera.
It is inevitable that during normal use of a digital camera, its sensor will become exposed to the atmosphere and its airborne impurities, such as minute airborne dust particles.
More particularly, on professional digital cameras having interchangeable lenses such as digital single-lens reflex (DSLR) cameras, the sensor exposed lens surface inevitably becomes contaminated by the atmosphere and its impurities whenever the lens is removed from the body of the camera, for example when switching lenses.
This technique, in addition to blowing away the dust on the sensor, has the adverse effect of dispersing and not removing dust particles.
However, this latter technique also has its drawbacks.
Indeed, liquid sometimes squirts out of canned air dusters when air is blown on the bristles, and liquid can thereafter be undesirably smeared on the surface of the sensor when the brush is swept thereacross.
Another disadvantage of using canned air dusters is that they are pressurized containers and it is prohibited to bring them aboard aircrafts, which can be inconvenient for travelling photographers for example.
Furthermore, pressurized air duster cans are not reusable, and after such a duster has been emptied, it is disposed of and a new one must be purchased.
Method used
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[0032]FIGS. 1-3 show a portable dusting tool 10 for digital camera sensors according to one embodiment of the present invention. Sensor dusting tool 10 comprises a handle member 12, in turn comprising a casing 14. Casing 14 defines an elongated main body portion 14a, and a neck portion 14b extending from one end of main body portion 14a.
[0033]Casing 14, as can be seen in FIG. 2, is at least partially hollow and in one embodiment may comprise a brush actuator therein, such as an electric rotary motor 16 powered by batteries 18. Batteries 18 are electrically connected to motor 16 as known in the art, for example by wires (not shown). Handle member 12 is also provided with a switch 20 controlling the selective powering of motor 16 by batteries 18, and which the user can depress with his finger F (as suggested in FIG. 2) to activate motor 16.
[0034]Motor 16 comprises a rotary shaft 22 connected to and rotating as one with the rotor (not shown) of motor 16. Shaft 22 extends within the ho...
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There is provided a non-scrubbing dusting tool for cleaning the exposed surface of a digital camera sensor lens in a recessed digital camera sensor chamber. The dusting tool comprises a dust brush having an elongated shank with a tuft of bristles having electrostatic charge built up therein at one end, and a handle at the other end. The tuft of bristles is V-shape and its free end tips are bevelled, for best performance. The duster is sized to adjustably fit inside the digital camera sensor chamber in such a fashion that the bristles leading edge tips will be able to reach all of the exposed surface of the camera sensor lens while avoiding contaminating contact with the camera sensor chamber. In an operative sensor lens cleaning condition of the dusting tool, the dust brush remains motionless relative to the handle while the dusting tool bristles leading edge tips are manually swept over the camera sensor lens to be cleaned. When the dusting tool is not in use, a rotating motor may spin the dust brush so that the bristles fan out under centrifugal force, so as to remove dust collected by the bristles during cleaning operations.
Description
CROSS REFERENCE DATA[0001]The present patent application is a Continuation-In-Part of co-pending U.S. patent application Ser. No. 11 / 813,471 being an Entry into U.S. National Phase of PCT application No. PCT / CA2006 / 000907 filed on Jun. 2, 2006.FIELD OF THE INVENTION[0002]The present invention relates to cleaning devices, and more particularly to a portable dusting tool for cleaning delicate surfaces.BACKGROUND OF THE INVENTION[0003]Digital cameras comprise an electronic sensor, such as a charge-coupled device (CCD) sensor or Complementary Metal Oxide Semiconductor (CMOS) sensor, lodged in a recessed sensor chamber of the camera, and onto which is projected the image of what is seen through the lens of the camera. This sensor can acquire the image projected thereon and convert it into electronic data, which is thereafter forwarded to data processing means provided on the digital camera. The data processing means then converts this electronic data into an image file of known format, s...
Claims
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IPC IPC(8): B08B7/00A46B9/02
CPCA46B9/02A46B9/025A46B2200/3026A46B2200/3073A46D1/00A46D1/0276B08B1/00B08B11/00G03B17/568B08B6/00B08B1/002G03B17/56B08B1/12B08B1/50
InventorRAHBAR-DEHGHAN, FARIBORZ
Owner1317442 ALBERTA