CN2620291Y - Image retrieval device with octagonal mirror - Google Patents

Abstract

The utility model provides a scanning head with regular octagonal mirror, which can compress the space required by the light path by the light reflected or transmitted by the original document through multiple reflections. Moreover, a plurality of light blocking devices are arranged in the regular octagonal facet mirror, so that part of diffused light generated in the light reflection process can be effectively blocked and even absorbed, and the quality and the resolution of the searched image can be improved.

Description

Image retrieval device with octagonal mirror

technical field

The utility model relates to an image retrieval device, in particular to an image retrieval device with a polygonal mirror.

Background technique

A general image retrieval device includes several main parts: an outer casing, a light source module, a scanning module and a transmission module. The scanning principle is: if it is a reflective manuscript, to scan a complete manuscript, the transmission module must drive the scanning module to scan, and through the reflection of light, the charged coupled device (Charge Coupled Device, CCD) Receiving, a complete scanning process is to scan the first horizontal line of the original, and then drive the scanning module to scan the second horizontal line by the transmission module, and so on until the entire original is scanned. The principle is the same when scanning transmissive manuscripts (positive and negative films), the difference is that instead of using the reflection of light, the light source is irradiated from above, transmitted through the manuscript, and then received by the charge-coupled device.

For an image retrieval device capable of scanning A4 size, the distance from the document surface to the charge-coupled device is generally about 20 centimeters, and the length of this distance will vary slightly with the design. As shown in Figure 1(A), if the light 16 is emitted by the light source 12 and reflected by the original 10, the light 16 imaged on the photosensitive element 20 through the lens 18 will make the image retrieval device The outer casing needs to become very large, so generally several lenses 14 are added to reflect and fold the optical path, so that the space required for the optical path can be reduced, as shown in FIG. 1(B).

These lenses will use different numbers of lenses according to different designs of different image retrieval devices, and the placement positions will also be adjusted accordingly. Since these lenses are respectively installed in the scanning module, it is necessary to adjust the arrangement angle of each lens so that the light can be correctly imaged on the photosensitive element. The current trend of image retrieval devices is to be lightweight and portable, and the overall size and thickness also need to become thinner and smaller. To reduce the thickness of the image retrieval device, it is necessary to increase the number of mirrors to increase the number of light folds to reduce the required space. Furthermore, the light in the prior art is reflected multiple times, and each reflection process will more or less cause the light to be scattered. After multiple reflections, the scattered light also has a certain intensity, and part of the light will also enter through the lens. The photosensitive element reduces the contrast of the retrieved image, affects the quality of the image, and reduces the resolution of the image.

Utility model content

In view of the fact that the light path in the prior art requires several mirrors installed separately to reflect and fold the light path, so that the space required for the light path is reduced, the main purpose of the utility model is to provide a regular octagonal lens group to provide more folds of the light path. The volume of the scanning head equipped with the lens can be effectively reduced.

Another purpose of the present utility model is to provide a regular octagonal lens group, which can reduce the size of the scanning head, so that the size of the outer shell of the image retrieval device can be reduced more effectively. In addition to reducing the required materials and reducing the cost, it can also make the It is easier for the user to carry, increasing the portability of the image retrieval device.

Another purpose of the present utility model is to provide a regular octagonal lens group, add a light blocking device in the octagonal lens group, to block some unnecessary external light rays or some scattered light generated by the reflection process, so that the retrieval of images The quality (contrast, etc.) is improved, and the resolution of the image is increased.

In order to achieve the above object, the solution of the present utility model is to provide an image retrieval device with a positive octagonal mirror, which has a regular octagonal lens group, including:

A regular octagonal cylinder with a corresponding mirror installed on multiple sides inside it to reflect a light;

A plurality of light-blocking devices are placed adjacent to a plurality of sides inside the regular octagonal cylinder to block the scattered light caused by the reflection of light; and

An opening is located on one side of the regular octagonal cylinder for allowing light to enter the regular octagonal cylinder.

In the regular octagonal lens group, the number of lenses installed on the plurality of sides is seven.

In the regular octagonal lens group, the number of the plurality of light blocking devices is eight.

In the regular octagonal lens group, the number of reflections of the light in the regular octagonal lens group is seven times.

In the regular octagonal lens group, the light blocking device is black.

The regular octagonal lens group also includes an intermediate light blocking device placed in the middle of the regular octagonal cylinder to block the scattered light caused by the reflection of light.

In the regular octagonal lens group, the surface of the light blocking device is atomized.

In the regular octagonal lens group, the openings are further used to allow light to exit the regular octagonal cylinder.

The regular octagonal lens group also includes a mirror, which is located on the side of the opening of the regular octagonal lens group, and is used to adjust the direction of the emitted light to a photosensitive element.

In the regular octagonal lens group, the mirror corrects the direction of the light so that the direction of the light corrected by the mirror is perpendicular to the surface of an original.

In the regular octagonal lens group, the surface mirror is a concave mirror.

An image retrieval device with a regular octagonal mirror, which has a regular octagonal lens group, including: a regular octagonal cylinder, a pair of mirrors corresponding to the device are provided on the inner side of the cylinder to reflect a light;

A plurality of light blocking devices are placed on a plurality of sides adjacent to the inner side of the regular octagonal cylinder to block the scattered light caused by the reflection process of light;

a first opening, located on one side of the regular octagonal cylinder, for allowing light to enter the regular octagonal cylinder; and

A second opening is located on one side of the regular octagonal cylinder different from the first opening, and is used to make the light exit the regular octagonal cylinder.

In the regular octagonal lens group, the number of lenses installed on the plurality of sides is six.

In the regular octagonal lens group, the number of the plurality of light blocking devices is eight. In the regular octagonal lens group, the light blocking device is black.

The regular octagonal lens group also includes an intermediate light blocking device placed in the middle of the regular octagonal cylinder to block the scattered light caused by the reflection of light.

In the regular octagonal lens group, the surface of the light blocking device is atomized.

In the regular octagonal lens group, the number of reflections of the light in the regular octagonal lens group is six times.

The regular octagonal lens group also includes a mirror, which is located on the side of the second opening of the regular octagonal lens group, and is used to adjust the direction of the emitted light to a photosensitive element.

In the regular octagonal lens group, the mirror corrects the direction of the light so that the direction of the light corrected by the mirror is perpendicular to a document surface.

In the regular octagonal lens group, the surface mirror is a concave mirror.

An image retrieval device with a regular octagonal mirror, which has a regular octagonal lens group, including: a regular octagonal cylinder, a pair of mirrors corresponding to the device are installed on the plural sides of the inner side to reflect a light; and

An opening is located on one side of the regular octagonal cylinder for allowing light to enter the regular octagonal cylinder.

In the regular octagonal lens group, the openings are further used to allow light to exit the regular octagonal cylinder.

The regular octagonal lens group also includes a mirror, which is located on the side of the opening of the regular octagonal lens group, and is used to adjust the direction of the emitted light to a photosensitive element.

In the regular octagonal lens group, the mirror corrects the direction of the light so that the direction of the light corrected by the mirror is perpendicular to the surface of an original.

The regular octagonal lens group also includes another opening, which is located on one side of the regular octagonal cylinder different from the opening, for allowing light to exit the regular octagonal cylinder.

The utility model provides a regular octagonal lens group with a light-blocking device. The utility model uses the octagonal lens group to increase the folding effect of the optical path, so that the volume of the scanning head equipped with the lens can be effectively reduced, thereby reducing the size of the retrieval image device. The size of the outer shell can increase the portability of the image retrieval device in addition to reducing the required materials and lowering the cost. Furthermore, adding a light blocking device in the octagonal lens group can block some unnecessary astigmatism, etc., and improve the quality and resolution of the retrieval image.

Description of drawings

Fig. 1 (A) is the optical path schematic diagram when there is no lens;

Fig. 1 (B) is the optical path schematic diagram when increasing eyeglass;

Fig. 2 (A)-(B) is the schematic diagram of a preferred embodiment of the present utility model;

Fig. 3 (A)-(B) is the schematic diagram of another preferred embodiment of the present utility model;

Fig. 4 is a schematic diagram of another preferred embodiment of the present invention.

Detailed ways

Some embodiments of the present invention will be described in detail as follows. However, except for the detailed description, the utility model can also be widely implemented in other embodiments, and the scope of the utility model is not limited, and the following patent scope shall prevail.

Furthermore, in order to provide a clearer description and an easier understanding of the present invention, the different parts of the various elements shown in the drawings are not drawn according to scale, and some dimensions have been exaggerated compared with other relevant scales; irrelevant details are not completely drawn for simplicity.

A preferred embodiment of the present utility model is shown in Figure 2 (A), which is a side view of a regular octagonal cylinder 22. The preferred arrangement is that one side of the regular octagonal cylinder 22 and the desired scanning The surface of the manuscript is parallel (the original is not drawn in Figure 2 (A)), and each side of the inner side has a mirror, which can effectively reflect the incident light. Reduce too much. The width of the lens can be the same as the width of each inner side of the regular octagonal cylinder 22 or be designed according to the requirements of actual design. One of the inner sides 26 has a long aperture as the entrance 24 of the light 16. The width of the entrance 24 can be the width of the inner side 26. The better way is to match the required incident width of the incident light, so as to avoid large Some external light sources are incident through the entrance 24 to cause interference and influence. The light 16 enters the regular octagonal column body 22 by the entrance 24, and starts to reflect after hitting any one of the other seven sides other than the inner side 26. All sides other than adjacent sides. As shown in Fig. 2 (A), the side reflected for the first time is one of the left and right adjacent sides 28 of the opposite side. The inlet 24 projects from the regular octagonal cylinder 22 . In this way, the regular octagonal cylinder 22 can provide seven reflections. And the utility model is not limited to the incident angle of light, the different angles that light enters into the column body 22 of regular octagon can obtain different reflection times and situations, for example some face mirrors also can be through more than two reflections, if not designed Glasses may not be installed on the side where light rays 16 need to be reflected. The exit of light also can be different from the entrance, as shown in Figure 2 (B), an exit 30 can be opened at another inner side 32 of the inner side 26, so that light can be emitted from this exit 30. In this way, the emission position and direction of the emitted light can be changed. The width of the opening of the outlet 30 can be the width of the inner side 32 , and a better way is to match the required width of the emitted light, so as to avoid interference and influence caused by some external light sources entering the outlet 30 . Furthermore, the present invention does not limit which side or which position of the side the outlet must be located on, and these can be changed according to different designs, such as the number of reflections, the position and angle of the outlet, etc., and be changed. Another preferred embodiment of the present invention is shown in FIG. 3A , which is almost the same as the above-mentioned FIG. 2(A), except that a light blocking device 34 is selectively added at the junction of each side. The number of light-shielding devices 34 can be changed according to the design. In this embodiment, eight light-shielding devices 34 are installed in total to obtain a better light-shielding effect. The main function of the light blocking device 34 is to block the scattered light, so that the light other than the light path that needs to meet the light 16 can be effectively blocked. The preferred light blocking device is black, which can absorb the scattered light and effectively reduce the impact of the scattered light. The surface of the better light-blocking device can be processed through atomization, and the angle of the light-blocking device 34 can be further designed to make the direction of the light not absorbed by the scattered light-blocking device 34 and reflected light be another light-blocking device 34, so that The light is absorbed a second time, which can further reduce the brightness and influence of scattered light. Furthermore, except that there is a light-blocking device 34 on the junction of each side, some light-blocking elements with light-blocking function can be added on parts other than the light path that does not hinder the light 16, as shown in Figure 3 (B). A light blocking device 36 is provided to increase the effectiveness of the overall light blocking device. As long as the light-blocking devices 34 and 36 meet the requirement of light-blocking function and not disturbing light 16, the material can be suitable material, the shape can be any shape, and the position can be fixed in any position without limitation.

Another preferred embodiment of the present invention is to add at least one mirror on the outside of the regular octagonal cylinder 22 . As shown in FIG. 4 , a mirror 38 is installed outside the regular octagonal cylinder 22 . The mirror 38 is mainly used to change the direction of the light 16 exiting the outlet. A better design is to change the direction of the light 16 to be parallel to any side of the regular octagonal cylinder 22, for example: the light will be perpendicular to the original surface 10, so that the space required by the light 16 can be further reduced to save space . The order in which the light 16 passes through the mirror 38 and the lens 18 can be the mirror 38 or the lens 18 first without limitation. The light 16 can also pass through the mirror 38 before entering the regular octagonal cylinder 22, so that the purpose of correcting the direction of the light can also be achieved. The surface mirror 38 itself can be not only a plane mirror, but also a concave or convex mirror. For example, when it is a concave mirror, it can also replace the function of the lens 18, thereby reducing the need for the lens 18.

The utility model can also be changed into a multi-faceted mirror cylinder in accordance with the spirit of the utility model, and can also be designed as an irregular polygon cylinder according to different environmental requirements. Based on the above, the utility model discloses a regular octagonal mirror cylinder. According to the regular octagonal mirror cylinder of the utility model, the required space can be reduced by multiple reflections of the light, and the light blocking device can be added to effectively improve the quality and resolution of the image.

The above description is only a preferred embodiment of the utility model, and is not intended to limit the patent scope of the utility model; all other equivalent changes or modifications that do not deviate from the spirit disclosed in the utility model shall include Within the scope of the patent application.

Claims (26)

1. the video search device of the positive octahedral mirror of tool has the polygon-octagonal lens set, it is characterized in that, comprises:

One polygon-octagonal cylinder all has an eyeglass of device correspondence, in order to reflect a light on the plural limit of its inboard;

A plurality of light-baffling devices, place a plurality of limits of polygon-octagonal cylinder inboard adjacent with the limit on, the diffusing coloured light that causes in order to obstruct the light in reflection process; And

One perforate is positioned at one side of polygon-octagonal cylinder, with so that light is injected the polygon-octagonal cylinder.

2. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that the eyeglass number that installs on the plural limit of described polygon-octagonal lens set is seven.

3. the video search device of the positive anistree face mirror of tool as claimed in claim 1 is characterized in that, a plurality of light-baffling device numbers of described polygon-octagonal lens set are eight.

4. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that, the light of described polygon-octagonal lens set is seven times in the number of times of polygon-octagonal lens set internal reflection.

5. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that the light-baffling device of described polygon-octagonal lens set is a black.

6. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that described polygon-octagonal lens set also comprises the middle apron electro-optical device, places the centre in the polygon-octagonal cylinder, the diffusing coloured light that causes in order to obstruct the light in reflection process.

7. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that, handle through atomizing on the surface of the light-baffling device of described polygon-octagonal lens set.

8. the video search device of the positive octahedral mirror of tool as claimed in claim 1 is characterized in that, the perforate of described polygon-octagonal lens set is more used so that light penetrates the polygon-octagonal cylinder.

9. the video search device of the positive octahedral mirror of tool as claimed in claim 8 is characterized in that described polygon-octagonal lens set also comprises a mirror, is positioned at the perforate side of polygon-octagonal lens set, in order to adjust irradiant direction to a photo-sensitive cell.

10. the video search device of the positive octahedral mirror of tool as claimed in claim 9 is characterized in that, the direction of the face mirror correction light of described polygon-octagonal lens set makes through the revised radiation direction of face mirror perpendicular to an original copy face.

11. the video search device of the positive octahedral mirror of tool as claimed in claim 9 is characterized in that, the face mirror of described polygon-octagonal lens set is a concave mirror.

12. the video search device of the positive octahedral mirror of tool has the polygon-octagonal lens set, it is characterized in that, comprises:

One polygon-octagonal cylinder all has an eyeglass of device correspondence, in order to reflect a light on the plural limit of its inboard;

A plurality of light-baffling devices, place a plurality of limits of polygon-octagonal cylinder inboard adjacent with the limit on, the diffusing coloured light that causes in order to obstruct the light in reflection process;

One first perforate is positioned at one side of polygon-octagonal cylinder, with so that light is injected the polygon-octagonal cylinder; And

One second perforate is positioned at one side of the polygon-octagonal cylinder different with first perforate, with so that light penetrates the polygon-octagonal cylinder.

13. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, the eyeglass number that installs on the plural limit of described polygon-octagonal lens set is six.

14. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, a plurality of light-baffling device numbers of described polygon-octagonal lens set are eight.

15. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, the light-baffling device of described polygon-octagonal lens set is a black.

16. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, described polygon-octagonal lens set also comprises the middle apron electro-optical device, places the centre in the polygon-octagonal cylinder, the diffusing coloured light that causes in order to obstruct the light in reflection process.

17. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, handle through atomizing on the surface of the light-baffling device of described polygon-octagonal lens set.

18. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, the light of described polygon-octagonal lens set is six times in the number of times of polygon-octagonal lens set internal reflection.

19. the video search device of the positive octahedral mirror of tool as claimed in claim 12 is characterized in that, described polygon-octagonal lens set also comprises a mirror, is positioned at the second perforate side of polygon-octagonal lens set, in order to adjust irradiant direction to a photo-sensitive cell.

20. the video search device of the positive octahedral mirror of tool as claimed in claim 19 is characterized in that, the direction of the face mirror correction light of described polygon-octagonal lens set makes through the revised radiation direction of face mirror perpendicular to an original copy face.

21. the video search device of the positive octahedral mirror of tool as claimed in claim 19 is characterized in that, the face mirror of described polygon-octagonal lens set is a concave mirror.

22. the video search device of the positive octahedral mirror of tool has the polygon-octagonal lens set, it is characterized in that, comprises:

One polygon-octagonal cylinder all has an eyeglass of device correspondence, in order to reflect a light on the plural limit of its inboard; And

One perforate is positioned at one side of polygon-octagonal cylinder, with so that light is injected the polygon-octagonal cylinder.

23. the video search device of the positive octahedral mirror of tool as claimed in claim 22 is characterized in that, the perforate in the described polygon-octagonal lens set is more used so that light penetrates the polygon-octagonal cylinder.

24. the video search device of the positive octahedral mirror of tool as claimed in claim 22 is characterized in that, described polygon-octagonal lens set also comprises a mirror, is positioned at the perforate side of polygon-octagonal lens set, in order to adjust irradiant direction to a photo-sensitive cell.

25. the video search device of the positive octahedral mirror of tool as claimed in claim 22 is characterized in that, the direction of the face mirror correction light of described polygon-octagonal lens set makes through the revised radiation direction of face mirror perpendicular to an original copy face.

26. the video search device of the positive octahedral mirror of tool as claimed in claim 22 is characterized in that, described polygon-octagonal lens set also comprises another perforate, is positioned at one side of the polygon-octagonal cylinder different with perforate, uses so that light penetrates the polygon-octagonal cylinder.

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