CN203012314U - Liquid crystal blocking device - Google Patents

Liquid crystal blocking device Download PDF

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Publication number
CN203012314U
CN203012314U CN 201220655792 CN201220655792U CN203012314U CN 203012314 U CN203012314 U CN 203012314U CN 201220655792 CN201220655792 CN 201220655792 CN 201220655792 U CN201220655792 U CN 201220655792U CN 203012314 U CN203012314 U CN 203012314U
Authority
CN
China
Prior art keywords
liquid crystal
unit
blocks
occlusion device
radical occlusion
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.)
Expired - Fee Related
Application number
CN 201220655792
Other languages
Chinese (zh)
Inventor
袁梦尤
李平立
王建华
薛涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peking University
Founder International Beijing Co Ltd
Original Assignee
Peking University
Founder International Beijing Co Ltd
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 Peking University, Founder International Beijing Co Ltd filed Critical Peking University
Priority to CN 201220655792 priority Critical patent/CN203012314U/en
Application granted granted Critical
Publication of CN203012314U publication Critical patent/CN203012314U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Diaphragms For Cameras (AREA)

Abstract

The utility model discloses a liquid crystal blocking device. The liquid crystal blocking device can be arranged before, behind or in a lens group. The liquid crystal blocking device includes a liquid crystal blocking unit; the liquid crystal blocking unit is connected with an external signal processing unit of the liquid crystal blocking device, wherein the external signal processing unit provides a working power supply for the liquid crystal blocking device; and the liquid crystal blocking unit comprises a blocking portion and a light-transmitting portion; and the external signal processing unit controls the shape, size and location of the blocking portion of the liquid crystal blocking unit by means of voltage. The shapes of the light-transmitting portion and the blocking portion of the liquid crystal blocking unit of the utility model can be set according to needs; the external signal processing unit performs voltage control on the liquid crystal blocking unit, such that the blocking position of the liquid crystal blocking unit can be gradually adjusted, and as a result, different blocking images can be obtained; and through the contrast between the different blocking images, the detection of image depth related information can be finally realized.

Description

A kind of liquid crystal radical occlusion device
Technical field
The utility model relates to that image is processed and the optical design field, is specifically related to a kind of liquid crystal radical occlusion device.
Background technology
In the imaging devices such as existing camera, can realize some special function by increasing a kind of radical occlusion device in camera lens, as the ultraviolet filtration of can justing think of UV mirror; Polariscope can selectively allow the light of certain direction vibration pass through; Iris diaphragm plate can change luminous flux and Depth of field.Many shielding modes are that machinery blocks (as aperture) at present, need some machine control units but machinery blocks this mode, and volume and cost are all larger, and occlusion shapes is more fixing, and the transmission region shape that usually forms is restricted, mostly are circular.
The utility model content
For the defective that exists in prior art, the purpose of this utility model is to provide a kind of liquid crystal radical occlusion device, is embodied as the detection of picture Zone Full internal object depth-related information by the combination of this device and imaging device.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of liquid crystal radical occlusion device, before this device is arranged on lens combination, after lens combination or in lens combination, this device comprises that liquid crystal blocks the unit, liquid crystal blocks the unit provides the external signal processing unit of working power to be connected with it, liquid crystal blocks the unit and comprises shield portions and light transmission part, and the external signal processing unit relies on Control of Voltage to block shape, size and the position of the shield portions of unit.
Further, a kind of liquid crystal radical occlusion device as above, described external signal processing unit reception external control signal blocks the unit to liquid crystal to be controlled, and the external signal processing unit comprises connecting terminal, control chip and internal circuit.
Further, a kind of liquid crystal radical occlusion device as above, it is the liquid crystal shielding plate that described liquid crystal blocks the unit, liquid crystal blocks the unit and is rearranged by one or more liquid crystal shielding plate.
Further, a kind of liquid crystal radical occlusion device as above, described liquid crystal block the unit for circular.
Further, a kind of liquid crystal radical occlusion device as above, described liquid crystal blocks being divided into of unit center symmetry of some equal portions, and each equal portions is a liquid crystal shielding plate.
Further, a kind of liquid crystal radical occlusion device as above, described liquid crystal block the liquid crystal that the unit center symmetry is divided into a kind of quartern and block the unit.
Further, a kind of liquid crystal radical occlusion device as above, described liquid crystal block the liquid crystal that the unit center symmetry is divided into a kind of 16 deciles and block the unit.
Further, a kind of liquid crystal radical occlusion device as above, described liquid crystal blocks the unit and is rearranged at a certain angle according to certain width by some liquid crystal shielding plates.
Further again, a kind of liquid crystal radical occlusion device as above, it is rotatable that described liquid crystal blocks the unit.
Further, a kind of liquid crystal radical occlusion device as above, liquid crystal block the shield portions of unit and size and the area of light transmission part arranges as required.
The beneficial effects of the utility model are: the light transmission part of liquid crystal radical occlusion device of the present utility model and the shape of shield portions can arrange as required, by the external signal processing unit, it is carried out Control of Voltage, can progressively adjust it and block the position, finally realize the phase place of all targets in image and the detection of depth-related information.
Description of drawings
Fig. 1 is the structural representation of a kind of liquid crystal radical occlusion device of the utility model;
Fig. 2 is the structured flowchart of a kind of liquid crystal radical occlusion device of the utility model;
Fig. 3 is the position relationship schematic diagram of liquid crystal radical occlusion device and lens combination in embodiment, imageing sensor;
Fig. 4-Fig. 6 blocks pattern diagram on different three kinds of shield portions in embodiment;
Fig. 7 be in embodiment liquid crystal block the unit on block pattern diagram;
Fig. 8 be in embodiment liquid crystal block the unit under block pattern diagram;
Fig. 9 is that pattern diagram is blocked on the left side that in embodiment, liquid crystal blocks the unit;
Figure 10 is that pattern diagram is blocked on the right side that in embodiment, liquid crystal blocks the unit;
Figure 11 is the schematic diagram that in embodiment, 16 decile liquid crystal block the unit;
Figure 12 is that the liquid crystal that in embodiment, some liquid crystal shielding plates are arranged according to the certain width certain angle blocks cell schematics.
Embodiment
Below in conjunction with Figure of description and embodiment, the utility model is described in further detail.
Liquid crystal radical occlusion device described in the utility model can make up with general imaging device (CCD, CMOS etc.), by adjust the liquid crystal radical occlusion device the imaging path block the position and shielded area obtains several different shielded images, and by original image and shielded image, perhaps be analyzed between different shielded images, can realize the detection of picture depth relevant information.
Fig. 2 shows the structured flowchart of a kind of liquid crystal radical occlusion device of the utility model, as can be seen from Figure, this liquid crystal radical occlusion device comprises that mainly liquid crystal blocks unit 2 and external signal processing unit 1, external signal processing unit 1 blocks unit 2 with liquid crystal and is connected, liquid crystal blocks unit 2 and comprises shield portions and light transmission part, external signal processing unit 1 provides working power for liquid crystal blocks the unit, and receive external control signal liquid crystal is blocked the printing opacity of unit or light tight, and the size of shield portions is carried out Control of Voltage, by progressively adjust liquid crystal block unit 2 block the position and shielded area obtains different shielded images.Fig. 1 shows the external signal processing unit 1 of liquid crystal radical occlusion device and a kind of structural representation (being not unique) that liquid crystal blocks unit 2, external signal processing unit 1 comprises the devices such as connecting terminal (or connecting line), control chip, internal circuit, when receiving external control signal, the liquid crystal shielding plate is controlled, liquid crystal blocks unit 2 for controllable.
Main and the imaging device of this liquid crystal radical occlusion device is used in combination, before can being arranged on lens combination, after lens combination or in lens combination, before preferred mode generally is arranged on lens combination, as shown in Figure 3, before liquid crystal radical occlusion device 3 is arranged on lens combination 4,5 is imageing sensor, i.e. image collecting device (comprising the image-forming components such as CCD, CMOS).It is generally the liquid crystal shielding plate that liquid crystal of the present utility model blocks the unit, liquid crystal blocks the unit and can be comprised of one or more liquid crystal shielding plate, liquid crystal blocks the unit and is generally circular, but be not limited to circle, as shown in Fig. 4-Figure 11, with the forefront of liquid crystal radical occlusion device integral installation to camera lens, rely on shape, size and the position of shield portions on the Control of Voltage shielding plate during use.
Shielding mode and shielded area that liquid crystal blocks unit 2 are various, unrestricted, can be arranged as required by the user, as shown in Fig. 4-Fig. 6, the shielding mode that liquid crystal blocks the shield portions of unit 2 is shielding mode, the area of shield portions is increased to Fig. 6 gradually by Fig. 4, and in figure, A is shield portions, and B is the light transmission part.Certainly, liquid crystal blocks the unit can also adopt other shielding mode, as Fig. 7, Fig. 8, Fig. 9 and Figure 10 show respectively liquid crystal block the unit on block, under block, block on a left side and four kinds of shielding modes are blocked on the right side.Certainly, in actual applications, also can as required liquid crystal be blocked being divided into of unit center symmetry of some equal portions, for example, the liquid crystal that liquid crystal is blocked the symmetrical quadrisection of unit center blocks the unit, and as shown in Fig. 7-Figure 10, the liquid crystal that also can say the quartern blocks that the unit is comprised of four liquid crystal shielding plates that are equal to, the shape of blocking the unit in liquid crystal is preferably circle, this moment each liquid crystal shielding plate be shaped as quadrant shape; Perhaps liquid crystal is blocked the liquid crystal that the unit center symmetry is divided into a kind of 16 deciles and block the unit, as shown in Figure 11, in this figure, 16 little liquid crystal shielding plates have formed that in figure, the liquid crystal of a circle blocks the unit.By liquid crystal being blocked being divided into of unit center symmetry of some equal portions, can realize the occlusion effect of multitude of different ways by control circuit, can realize the rotation of different accuracy, reach and control in light path light by the purpose of position and luminous flux.In addition, if this type of liquid crystal shielding plate is connected with devices such as camera lens, by blocking of symmetric mode, light sees through lens combination during imaging, can produce the image deviations for detection of phase place and depth-related information in the transitional region at the place of blocking on imageing sensor.
Shown in Fig. 4-Figure 11 the liquid crystal situation that the position changes of blocking of blocking the unit, light blocks light transmission part, unit and lens combination imaging on imageing sensor by liquid crystal, can produce the image deviations for detection of phase place and depth-related information in the transitional region of blocking.in order to reach imageable target all in computed image, need and to block transitional region according to certain width, progressively change the position of blocking of radical occlusion device, for addressing this problem, a kind of liquid crystal radical occlusion device that this embodiment also proposes, be about to some liquid crystal shielding plates according to certain width and carry out at a certain angle assembled arrangement, the liquid crystal width is the amount relevant with blocking the transitional region width, arrangement angle is arbitrarily, as shown in figure 12, it is the unit that blocks of parallel 6 minutes that liquid crystal in this figure blocks the unit, by liquid crystal shielding plate shown in six figure formed should circle the unit that blocks.Certainly, in actual applications, the user also can select the liquid crystal shielding plate of difformity, different numbers to form different liquid crystal to block the unit as required.
Obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if within of the present utility model these are revised and modification belongs to the scope of the utility model claim and equivalent technology thereof, the utility model also is intended to comprise these changes and modification interior.

Claims (10)

1. liquid crystal radical occlusion device, before this device is arranged on lens combination, after lens combination or in lens combination, it is characterized in that: this device comprises that liquid crystal blocks the unit, liquid crystal blocks the unit provides the external signal processing unit of working power to be connected with it, liquid crystal blocks the unit and comprises shield portions and light transmission part, and the external signal processing unit relies on Control of Voltage to block shape, size and the position of the shield portions of unit.
2. a kind of liquid crystal radical occlusion device as claimed in claim 1 is characterized in that: described external signal processing unit receives external control signal and liquid crystal is blocked the unit controls, and the external signal processing unit comprises connecting terminal, control chip and internal circuit.
3. a kind of liquid crystal radical occlusion device as claimed in claim 1, it is characterized in that: it is the liquid crystal shielding plate that described liquid crystal blocks the unit, liquid crystal blocks the unit and is rearranged by one or more liquid crystal shielding plate.
4. a kind of liquid crystal radical occlusion device as claimed in claim 3 is characterized in that: described liquid crystal blocks the unit for circular.
5. a kind of liquid crystal radical occlusion device as claimed in claim 4, it is characterized in that: described liquid crystal blocks being divided into of unit center symmetry of some equal portions, and each equal portions is a liquid crystal shielding plate.
6. a kind of liquid crystal radical occlusion device as claimed in claim 5 is characterized in that: described liquid crystal blocks the liquid crystal that the unit center symmetry is divided into a kind of quartern and blocks the unit.
7. a kind of liquid crystal radical occlusion device as claimed in claim 5 is characterized in that: described liquid crystal blocks the liquid crystal that the unit center symmetry is divided into a kind of 16 deciles and blocks the unit.
8. a kind of liquid crystal radical occlusion device as claimed in claim 4, it is characterized in that: described liquid crystal blocks the unit and is rearranged at a certain angle according to certain width by some liquid crystal shielding plates.
9. a kind of liquid crystal radical occlusion device as described in one of claim 1 to 8, it is characterized in that: it is rotatable that described liquid crystal blocks the unit.
10. a kind of liquid crystal radical occlusion device as claimed in claim 9, it is characterized in that: liquid crystal blocks the shield portions of unit and size and the area of light transmission part arranges as required.
CN 201220655792 2012-12-03 2012-12-03 Liquid crystal blocking device Expired - Fee Related CN203012314U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220655792 CN203012314U (en) 2012-12-03 2012-12-03 Liquid crystal blocking device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220655792 CN203012314U (en) 2012-12-03 2012-12-03 Liquid crystal blocking device

Publications (1)

Publication Number Publication Date
CN203012314U true CN203012314U (en) 2013-06-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220655792 Expired - Fee Related CN203012314U (en) 2012-12-03 2012-12-03 Liquid crystal blocking device

Country Status (1)

Country Link
CN (1) CN203012314U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113012521A (en) * 2021-03-10 2021-06-22 江苏开放大学(江苏城市职业学院) Training device for assisting translator in practicing and using method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113012521A (en) * 2021-03-10 2021-06-22 江苏开放大学(江苏城市职业学院) Training device for assisting translator in practicing and using method

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130619

Termination date: 20151203

EXPY Termination of patent right or utility model