TW449740B - Optical disc player cleaning apparatus - Google Patents

Abstract

The present invention concerns an optical disc player cleaning apparatus comprising a sheet 2 for releasable attachment to an exterior surface of an optical data storage carrier 10. The sheet has one or more cleaning elements 3;4 attached thereto for cleaning an optical component of a laser system within the player.

Description

4 4 97 4 Q_ 5. Description of the invention (1) The present invention relates to a device for cleaning exposed optical components of a laser system in a disc compartment of an optical disc player. In this regard ', inside the disc compartment of the disc player, a laser beam is directed towards the disc reading surface placed in the player. This reading surface has formed therein a pit magnetic track in a circular configuration, and this magnetic track corresponds to digital data stored on a disc. When the light beam hits the reading surface, it depends on whether the light beam has fallen into a pit magnetic track. After the light beam is reflected back to the appropriate susceptor in the player, the change can be determined by the disc. data. If the path of the laser beam is obstructed, for example, it is blocked by dust or condensation in the player, the retrieved data may be interrupted, causing the player to miss reading or cause other malfunctions. In this regard, conventional devices can clean dust and condensation on exposed optical components of the laser system in the disc compartment of the disc player. This type of device is usually composed of a specially manufactured compact disc (CD), and this disc is formed in the same injection molding method as a conventional playable disc, but with a standard time signal track on it, No other data or information is contained. The standard time signal track enables the laser to find the beginning of the disc and then scan the entire disc. On the reading surface of the disc facing the laser device, there are areas with a soft bristle brush or a soft cloth-like material. When the laser starts scanning the disc, 'it starts to read from the center of the disc' and then with the signal track of time, the f-curving outwards towards the edge of the disc. With this operation, the laser beam will finally reach the area where the disc has a brush or cloth.

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9? 4Q V. Description of the Invention (2) At this time, when the laser system cannot correctly access the data on the disc through a brush or cloth, the disc will skip the area. —Once it reads an area, the laser system will again and again be able to properly scan the operation of the cleaning disc. The intention is that the optical components of the laser system pass through the brush or cloth. The lens cover (exposed element of the laser system in the disc compartment) can be contacted by the brush or cloth. One of the problems caused by the cleaning of discs such as dust and wool is that the needle ^ achieves the purpose of paying a relatively expensive cost β, that is, it must be $, and the surface is completely blank. The optical discs provide a simple cleaning effect of σσ. Furthermore, such cleaning discs cannot be used often because leather or cloth pieces may have a certain soiling process f after a single use, and If it is used for cleaning again, the laser lens may be damaged. After a single use, it may be necessary to discard the entire cleaning disc simply because the brush or cloth is considerably soiled. In addition, the volume of such conventional disc cleaning devices is quite large, occupying almost the volume of a standard disc. Therefore, such disc cleaning devices cannot be stored in large quantities. It is an object of the present invention to provide a cleaning device for an optical disc player, which can effectively solve the problems encountered by the conventional device. According to a feature of the present invention, there is provided a cleaning device for an optical disc player, including: a sheet to cover an outer surface of an optical data storage carrier; the sheet has one or more cleaning elements combined with it, and Page 5 of the player: C: \ Program Files \ Patent \ 91516 · ptd ^ 49740 5. The optical components of the laser system in Part (3) of the invention description are cleaned. With this design, the provided disc player cleaning device is relatively simple to use and has a low manufacturing cost. Preferably, the sheet has the form of an annular transparent film member. This sheet can therefore be simply mounted on an optical data storage carrier. In a preferred embodiment, the one or more cleaning elements are in the form of a small and soft bristle brush and / or pad-like cloth sheet with a low I or more. 1 Such cleaning elements can provide a laser system. Proper cleaning effect of optical components. Generally, the cleaning element extends radially outward from the inner edge of the sheet. In this way, the optical element of the laser system can extend its cleaning effect as the laser beam is directed toward the edge of the optical data storage carrier. Preferably, the sheet is designed to be removably bonded to a conventional optical data remnant. Since the conventional optical data storage carrier can be used with the cleaning device to clean the optical components of the laser system, there is no need to manufacture a dedicated blank disc. In a preferred embodiment, the sheet has internal and external ring-shaped contact adhesives to adhere the sheet to an optical data storage carrier. Alternatively, the sheet may have or additionally add an optical coupling adhesive or an adhesive material. In another design, the sheet may also be replaced or additionally mechanically bonded to the optical data storage carrier, such as in an edge manner. This mechanical bond is preferably removable. Preferably, the sheet is made of a low birefringence material. This device may include a first sheet, and this second sheet is designed to be

449 ^ 40 and invention description (4) Thin to cover the central raised portion of the optical data storage carrier The sheet system forms a certain thickness relationship with the thickness of the sheet. According to another feature of the present invention, it is to provide an optical carrier. The carrier has a sheet covering the outer surface; the data storage is removably bonded to the carrier, and has one or more 7 pieces. The system can be protruded from above to clean the optical elements of the laser system located inside the 'green cleaning element' room of a CD player. An example of the present invention will be described with reference to the attached drawings. Figure 1 shows the cleaning device of the disc player of the present invention. The second order shows the cleaning device when it is used in a standard optical system. The side view when the carrier is stored; and the third figure of the material storage is a focus correction device that can be used in conjunction with the cleaning device of the first figure. The middle focus is shown in Fig. 1A, in which the disc player cleaning device i is shown, which is composed of two relatively thin circular transparent diaphragm members 2. The diameter of the diaphragm member is preferably about 40 mm, and its outer diameter is preferably about 80 mm. In addition, it can also have a slightly larger size, and can be extended to a cleaning device that can be applied to optical data storage carriers, such as a piece of AL ya.T ^. U ′

A cleaning element is adhered to the diaphragm member, which is in the form of a small soft bristle brush 3 or a pad-like cloth sheet 4. It can also provide a combination of a brush and a pad-like cloth sheet 'to provide different cleaning effects. Of course, other suitable cleaning elements can also be used. Although the cleaning element is adhered to the diaphragm member in this example, it can also be used in any other suitable way.

__ ^^ 9740______ V. Description of the invention-" Formula ' The production step is detachably bonded to the diaphragm member. For example, the two pieces can be fitted into the surface of Velcr0 (brand name) to cooperate. 'Using the method shown in Figure 2, the film member can be removably combined with a conventional optical experience * 10 in use, such as CD, CD-ROM, DVD, etc. Wait. For example, the sub-carrier can be provided with a ring-shaped contact adhesive on a non-clean surface (that is, the diameter and outer diameter parts of the cleaning element are not provided. Or the optical coupling type can also be provided on the inner surface Adhesive or adhesive material. In another clean design, a sheet can also be replaced or additionally mechanically bonded = if it is bonded to the optical data storage carrier by a frame edge. This 1 combination is preferably The diaphragm member itself and the device used to couple the diaphragm member to the optical data storage carrier should allow at least some laser beams to pass through the optical data storage carrier, that is, the beam should be able to Pass through at least one part of the undamaged diaphragm. Suitable materials for the diaphragm may include low birefringence materials, salts or polymeric carbides. A The diaphragm member is placed in an optical data storage in such a way The carrier 10 is placed at the center of the table ^ (_ playback surface) where the optical data storage carrier can be scanned normally. For example, the optical data storage carrier can be light owned by the user. Those who are familiar with this technology should understand that in the example of optical discs, a circular area 'that is, coaxially surrounds the central opening (its diameter is about 15 mm) and extends to an area of about 33 mm in diameter. Relative to the disc

_4 4 Q 7 /] q V. Description of the invention (6) It rises in other areas. The central circular ring area formed by the inner diameter of the disc member extending through the diaphragm member can be used as a guide. The ring-shaped area raised from the center can protrude through the hole. In this regard, the optical disc storage device can be used in the disc compartment of a disc player for normal playback after combining the diaphragm components with the correctly positioned components, but "the volume needs to be minimized." Once the optical data is stored and all time data is present, the laser 5 in the player can start normal: play until it reaches the cleaning element, and then start skipping. However, although its skipping 1 shot will continue During the trial reading, the optical components exposed by the laser system (that is, the laser penetrating lens) were cleaned in the same way as the plastic discs and the cleaning discs. After the operation is completed, the optical data storage carrier can be discontinued. Take out. The cleaning device can then be removed from the optical data storage ^ _, and then, depending on the situation, decide to process or store it for reuse. The optical data storage carrier After the cleaning device is removed, it can be used normally again. + F 卞 Also in this regard, the device that combines the diaphragm to the disc should not remain on the disc, such as' its should It can be removed without leaving the glue on the disc. The β-focus device can be used together. For those who are familiar with this technology, the central ring area 11 is the same as the cleaning device. It can be used with a laser. The β shown in this respect and as described above can be understood in the example of a cleaning disc

_______ 5. Description of the invention (7) ~ " " --------- For the rest of the surface of the disc is elevated. There is a fairly accurate thick relationship between this high rise area of the disc and the rest of the area (play area). This is a very important relationship, especially on the surface of the disc that contains the domain and the impact of the laser beam. This lens can maintain a fixed distance between the lenses above it, so that the lens can maintain a fixed distance. '' 'In this example, this is quite relevant, because if the cleaning device is only applied to the data-carrying area of the optical data storage vehicle, the laser is focused by the 4 original “high” areas of the disc Deviations will occur. On the other hand, if the cleaning device is designed to extend at the same time as the raised area of the data-carrying area, it will generally or reliably conform to the shape of the disc surface, more precisely Near the circular step of millimeter diameter formed at the junction of the raised area and the disc including the rest of the surface on which it carries the data, it will tend to deviate there. Unfortunately, the key starting point for recording data It usually occurs at this location or a location very close to this location, and if the starting point cannot be found, the inability to focus through laser or other optical problems will also cause the film to fail to conform to the surface shape of the disc, but This disc will therefore not be readable. On the diaphragm of the cleaning device rather than on the cleaning element, it will still cause another problem, which is that it may ^ contact the lens directly near the starting point, which is caused by The diaphragm is caused by raising the height of the disc relative to the raised area ^. Such contact may damage the laser lens and / or the diaphragm. Therefore, as shown in Figure 3, a lens focus is provided Device, and it is only composed of another disc lamellar diaphragm 9, and this diaphragm 9 is equipped with

449740__ 5. Description of the invention (8) It is placed on the raised area 11 of the disc. This focusing sheet has a predetermined thickness' which is used to set an appropriate distance between the diaphragm member and the optical element of the laser system. For example, the thickness of the focusing sheet may be smaller than the thickness of the diaphragm member to reduce the distance between the optical components of the laser system and the diaphragm member (and its cleaning member). Therefore, the thickness of the focusing member can be selected to match the required cleaning distance. The selectivity of the different thickness of the focusing sheet can be used to progressively clean the optical components of the laser system. It should be further understood that the diagram The embodiments are only used to exemplarily illustrate the application of the present invention. In practice, the present invention can be applied to many different designs, and for those skilled in the art, after reading the description above, these applications can be directly implemented. For example, several disc player cleaning sheets can be placed together on a basic disc with appropriate standard time signal tracks to provide a convenient cleaning system 'and once the sheet is paid Can be replaced. [Description of component symbols] Player cleaning device 2 Transparent diaphragm Bristles brush 4 Liner cloth Laser 6 Laser lens Diaphragm 10 Carrier 1¾ up area

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Claims (1)

44974 () VI. Application scope of patent 88104617 I & 9〇d February 27 units m 2, f Jf < r Q: I? Fl · > M. i il vl 6. 7.8. 9.10. 11. A cleaning device for an optical disc player, comprising: a sheet, which is covered to cover an optical data storage, and has one or more cleaning elements combined with the surface; the optical elements of the laser system inside the player are cleaned. The device of the scope of patent application can be applied to the root f, which is the form of the thin transparent membrane member. It has a device of the scope of the patent scope 1 or 2 of the circular root, which makes the one or more clean The element has one or more small and soft bristle brushes = form. According to the patent application ® item 丨 or 2 device, the one or more cleaning f pieces have one or more pad-like cloth pieces The device according to item 1 or 2 of the scope of patent application, wherein the cleaning element is a combination of a brush and a pad-like cloth sheet. The device according to item 5 of the previous patent scope, wherein the cleaning element is It extends radially outward from the inner edge of the sheet. The device according to the aforementioned patent application item 6, wherein the sheet is designed to be removably coupled to a conventional optical data storage carrier. The device according to the patent application item 7 'wherein the sheet has internal and external rings The contact adhesive is shaped. The device according to item 7 of the scope of patent application 'wherein the sheet has an optical coupling adhesive or an adhesive material. The device according to item 7 of the aforementioned scope of patent application, wherein the sheet is made of low birefringence The device according to item 7 of the aforementioned patent application range further includes a second sheet, which is designed to cover the optical data storage A: \ 91516.ptc Page 1 2001.02.27.012 44974Q _Case No. 88104617_Amended on February 27, 1990 _ Six central application of patent application scope storage vehicle; the second thin moon is formed with the thickness of the sheet Certain thickness relationship. 12. The device according to item 11 of the aforementioned patent application scope further includes a device that can be detachably and mechanically coupled to the optical data storage vehicle. 13. An optical data storage carrier having a sheet covering an outer surface thereof; the sheet is removably bonded to the carrier and has one or more cleaning elements protruding outwardly therefrom It is extended to clean the optical components of the laser system inside the disc compartment of a disc player. A: \ 91516.ptc Page 2 2001.02.27.013