CN103312956A - Image sensing device and optical interactive device with same - Google Patents

Image sensing device and optical interactive device with same Download PDF

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Publication number
CN103312956A
CN103312956A CN2012100685828A CN201210068582A CN103312956A CN 103312956 A CN103312956 A CN 103312956A CN 2012100685828 A CN2012100685828 A CN 2012100685828A CN 201210068582 A CN201210068582 A CN 201210068582A CN 103312956 A CN103312956 A CN 103312956A
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China
Prior art keywords
light
image
liquid crystal
image sensor
image light
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CN2012100685828A
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Chinese (zh)
Inventor
王文俊
大卫.E.史蒂文生
马志远
方崇仰
林宗贤
谢宗谚
叶家宏
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LIANSHENG (CHINA) TECHNOLOGY CO LTD
Wintek Corp
Original Assignee
LIANSHENG (CHINA) TECHNOLOGY CO LTD
Wintek Corp
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Priority to CN2012100685828A priority Critical patent/CN103312956A/en
Publication of CN103312956A publication Critical patent/CN103312956A/en
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Abstract

The invention discloses an image sensing device, which is used for detecting first image light or second image light in different directions. The image sensing device comprises a polarizing light splitter, a liquid crystal switch, a polarizer, a lens module and an image sensing element, wherein the polarizing light splitter is used for receiving the first image light and the second image light, separating the first image light into first penetrated light and first reflected light and separating the second image light into second penetrated light and second reflected light; the liquid crystal switch is used for adjusting and controlling phase delay of the first penetrated light and the second reflected light; the polarizer is arranged on a light exiting surface of the liquid crystal switch to selectively allow the first penetrated light or the second reflected light to pass through; the lens module is used for focusing the first penetrated light or the second reflected light on a focus; the image sensing element is arranged on the focus of the lens module to sense the focused first penetrated light or second reflected light.

Description

Image sensor apparatus and have its optical interaction device
Technical field
The invention relates to a kind of Image sensor apparatus, and particularly relevant for the Image sensor apparatus in a kind of image of changeable different directions source and have its optical interaction device.
Background technology
Along with the progress of science and technology, and human increase in demand for record life, amusement or security consideration, so that be developed in response to the image sensor miscellaneous of market trend.Known image sensor such as camera, video camera, drive recorder and monitor etc., all can only be taken single and specific direction, and can't take plural different directions simultaneously at present.If when needing simultaneously two kinds of different directions to be taken, at least two group image sensors must be installed, or camera lens can be rotated the image sensor tumbler of arranging in pairs or groups, and then reach the effect of taking different directions.
Yet, two group image sensors are installed are improved hardware cost except meeting, and take up space.If when being subject to the limited space of installation site, one group of above image sensor may not be installed.In addition, the image sensor of collocation tumbler also needs to consider whether the space of installation site allows image sensor to do significantly to rotate.And except needs considered to increase the cost of tumbler, the image sensor of collocation tumbler still had the shortcoming of shooting blind angle amount when taking.
Summary of the invention
The invention relates to a kind of Image sensor apparatus, the image light source of changeable different directions is optionally to detect the image of different directions.Optical interaction device with this kind Image sensor apparatus is the instruction that optionally receives the image light representative of different directions.Therefore, can have the optical interaction function of two dimension and three dimension scale concurrently.
According to a first aspect of the invention, a kind of Image sensor apparatus is proposed, in order to one first image light or the one second image light that detects different directions.Image sensor apparatus comprises a polarizing beam splitter, a liquid crystal shutter, a polaroid, a lens module and an Image Sensor.Polarizing beam splitter is in order to receiving the first image light and the second image light, and the first image light is separated into one first penetrating light and one first reverberation.The second image light is separated into one second penetrating light and one second reverberation.Liquid crystal shutter is in order to regulate and control the first penetrating light and the second catoptrical phase delay.Polaroid is arranged at the exiting surface of liquid crystal shutter, optionally to allow the first penetrating light or the second reverberation pass through.Lens module is with so that the first penetrating light or the second reverberation focus on a focus.Image Sensor is arranged on the focus of lens module, in order to the first penetrating light of sensing focusing or the second reverberation of focusing.
According to a second aspect of the invention, a kind of Image sensor apparatus is proposed, in order to one first image light or the one second image light that detects different directions.Image sensor apparatus comprises an optical spectroscope, a liquid crystal shutter group, a lens module and an Image Sensor.Optical spectroscope is in order to receive and to transmit the first image light or the second image light to the first side of optical spectroscope.The liquid crystal shutter module comprises one first liquid crystal shutter and one second liquid crystal shutter.The first liquid crystal shutter comprises that a liquid crystal layer and a pair of polaroid are arranged at the relative both sides of liquid crystal layer, and the first liquid crystal shutter is to be arranged at optical spectroscope near the side of the first image light, passes through optionally to make the first image light.The second liquid crystal shutter comprise another liquid crystal layer and one another polaroid is arranged at the relative both sides of another liquid crystal layer, the second liquid crystal shutter is to be arranged at optical spectroscope near the side of the second image light, passes through optionally to make the second image light.Lens module is with so that the first image light or the second image light focus on a focus, and focus is the first side that is positioned at optical spectroscope.Image Sensor is arranged on the focus of lens module, with the first image light of sensing focusing or the second image light of focusing.
According to a third aspect of the invention we, propose a kind of optical interaction device that receives the image source of different directions, comprise a display floater and an Image sensor apparatus.One Image sensor apparatus is arranged on the side of display floater, in order to one first image light or the one second image light that detects different directions.Image sensor apparatus comprises an optical spectroscope, a liquid crystal shutter module, a lens module, an Image Sensor and an image recognition system.Optical spectroscope is in order to receive and to transmit the first image light or the second image light to the first side of optical spectroscope.The liquid crystal shutter module is in order to optionally to allow the first image light or optionally allow the second image light pass through.Lens module is with so that the first image light or the second image light focus on a focus, and focus is the first side that is positioned at optical spectroscope.Image Sensor is arranged on the focus of lens module, in order to the first image light of sensing focusing or the second image light of focusing.Video identification device is used for the instruction of the second image light representative of the instruction of the first image light representative of the focusing that the identification Image Sensor senses or focusing.
For there is better understanding above-mentioned and other aspect of the present invention, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A～1B illustrates the schematic diagram according to the Image sensor apparatus of first embodiment of the invention.
Fig. 2 A～2B illustrates the schematic diagram according to the Image sensor apparatus of second embodiment of the invention.
Fig. 3 A～3B illustrates the schematic diagram according to the Image sensor apparatus of third embodiment of the invention.
Fig. 4 A～4B illustrates the schematic diagram according to the Image sensor apparatus of fourth embodiment of the invention.
Fig. 5 A～5B illustrates the schematic diagram according to the optical interaction device of one embodiment of the invention.
Fig. 6 illustrates the schematic diagram according to the surveillance of one embodiment of the invention.
[main element label declaration]
5,5 ': optical interaction device 6: surveillance
10,20,30,40,50-1,50-2,60: Image sensor apparatus
52,52 ': display floater 100,200,300: polarizing beam splitter
102,202,302,402a, 402b: liquid crystal shutter
104,204,304,402a-1,402a-2,402b-1,402b-2: polaroid
106,206,306,406: lens module
108,208,308,408: Image Sensor
400: optical spectroscope L1, L2: image light
L P1, L P2: penetrating light L S1, L S2: reverberation
L X1, L Y2 ': s polarised light L X1 ', L Y2: the p polarised light
D1, D2: direction f1, f2: dummy line
P1～P4, P1 '～P4 ': drift angle S: touching signal
W1, W2: metope
Embodiment
The first embodiment
Please refer to Figure 1A and Figure 1B, it illustrates the schematic diagram of the Image sensor apparatus 10 of first embodiment of the invention.Shown in Figure 1A, Image sensor apparatus 10 comprises a polarizing beam splitter 100, a liquid crystal shutter 102, a polaroid 104, a lens module 106 and an Image Sensor 108.Polaroid 104 is arranged at the exiting surface of liquid crystal shutter 102.Lens module 106 is to be arranged between liquid crystal shutter 102 and the Image Sensor 108.In this embodiment, polarizing beam splitter 100 for example is a polarized light beam splitter PBS (Polarization Beam-Splitter), a reflective polaroid DBEF (Dual BrightnessEnhancement Film), or other has the reflection multilayer film of identical function, is not restricted.Image Sensor 108 for example is a CMOS (Complementary Metal Oxide Semiconductor) transistor (CMOS) type sensor.
In this embodiment, the first image light L1 and the second image light L2 are in fact orthogonal.Polarizing beam splitter 100 is in order to receiving the first image light L1 and the second image light L2, and the first image light L1 is separated into one first penetrating light L P1And one first reverberation L S1, and the second image light L2 is separated into one second penetrating light L P2And one second reverberation L S2Orthogonal in this described first image light L1 and the second image light L2 " in fact ", refer to that the first image light L1 and the second image light L2 do not need accurately to be 90 degree angles, as long as the incident angle of the first image light L1 and the second image light L2, be to get final product in the angular range when dropping on polarizing beam splitter 100 and the first image light L1 and the second image light L2 can be separated into separately the polarised light of out of phase.
It should be noted that the polarizing beam splitter 100 that illustrates in Figure 1A and 1B is the polarizing beam splitter of PBS type.Yet, polarizing beam splitter 100 can also be the polarizing beam splitter of DBEF type, as long as place obliquely the polarizing beam splitter of DBEF type, so that can being separated into the first image light L1 and the second image light L2 the polarised light of out of phase separately, DBEF type polarizing beam splitter 100 gets final product.In this embodiment, incident light enters the polarizing beam splitter 100 of PBS type, and the incident angle scope about nearly 7 degree is the scope that the polarizing beam splitter 100 of PBS type can act on.Incident light the incident angle scope about nearly 30 degree of 100 of polarizing beam splitters of DBEF type of entering is the scope that the polarizing beam splitter 100 of DBEF type can act on.
Shown in Figure 1A and 1B, the first penetrating light L only P1And the second reverberation L S2Light path be direction transmission towards Image Sensor 108.In this light path, liquid crystal shutter 102 is regulated and control first the first penetrating light L P1And the second reverberation L S2Phase delay.Polaroid 104 optionally allows the first penetrating light L again P1Or the second reverberation L S2By.Polaroid 104 in this embodiment for example is the polaroid that only allows the s polarised light to pass through.Lens module 106 is in order to will be by the first penetrating light L of polaroid 104 P1Or the second reverberation L by polaroid 104 S2Focus on a focal point F.Image Sensor 108 is arranged on the focal point F of lens module 106, in order to the first penetrating light L of sensing focusing P1Or the second reverberation L that focuses on S2
Please refer to Figure 1A, it illustrates and applies a voltage V among the first embodiment in the situation of liquid crystal shutter 102 with unlatching liquid crystal shutter 102.Shown in Figure 1A, the first reverberation L S1And the second penetrating light L P2The direction of advancing there is no Image Sensor, so can not be detected.And the first penetrating light L P1And the second reverberation L S2Direct of travel is the liquid crystal shutter 102 by opening first, and the liquid crystal shutter 102 of unlatching can't be made phase delay to light.For instance, the first penetrating light L P1And the second penetrating light L P2For example be a p polarised light, the first reverberation L S1And the second reverberation L S2For example be a s polarised light, the phase difference of p polarised light and s polarised light is 1/2 λ.At this moment, the first penetrating light L P1Still be the p polarised light behind the liquid crystal shutter 102 by unlatching, the second reverberation L S2Still be the s polarised light behind the liquid crystal shutter 102 by unlatching.Then, the first penetrating light L P1And the second reverberation L S2March to the polaroid 104 that only allows the s polarised light to pass through, therefore, the second reverberation L is only arranged S2Pass through lens 106 by polaroid 104 and focus on Image Sensor 108.That is to say, when the liquid crystal shutter 102 of Figure 1A was unlocked, what Image Sensor 108 detected was the image of the incident direction of the second image light L2.
Please then refer to Figure 1B, it illustrates and does not apply a voltage to liquid crystal shutter 102 among the first embodiment to close the situation of liquid crystal shutter 102.In this part different from Figure 1A only is described, all the other similar parts repeat no more.As shown in Figure 1B, the first penetrating light L P1And the second reverberation L S2Direct of travel is the liquid crystal shutter 102 by closing first, and the liquid crystal shutter 102 of closing can be made phase delay to light.That is to say the first penetrating light L P1(p polarised light) will be delayed the polarised light into s, the second reverberation L after by the liquid crystal shutter 102 of closing S2(s polarised light) is delayed the polarised light into p by the liquid crystal shutter 102 of closing.As the first penetrating light L that is delayed P1And the second reverberation L S2March to when only allowing polaroid 104 that the s polarised light passes through, the first penetrating light L that is delayed is only arranged P1Be able to pass through lens 106 by polaroid 104 and focus on Image Sensor 108.Therefore, when the liquid crystal shutter 102 of Figure 1B was closed, what Image Sensor 108 detected was the image of the incident direction of the first image light L1.
In the first embodiment, the unlatching by liquid crystal shutter 102 or close is so that Image sensor apparatus 10 can optionally detect the image of one first image light L1 or one second image light L2.
The second embodiment
Please refer to Fig. 2 A and 2B, it illustrates the schematic diagram of the Image sensor apparatus 20 of second embodiment of the invention.Shown in Fig. 2 A, Image sensor apparatus 20 comprises a polarizing beam splitter 200, a liquid crystal shutter 202, a polaroid 204, a lens module 206, and an Image Sensor 208.Polaroid 204 is arranged at the exiting surface of liquid crystal shutter 202.In polarizing beam splitter 200, liquid crystal shutter 202, polaroid 204 and the Image Sensor 208 of this embodiment, can be identical with the counter element of the first embodiment.Only illustrate among this embodiment and the different feature of the first embodiment in this, all the other exist together mutually and will repeat no more.
Shown in Fig. 2 A and 2B, lens module 206 comprises lens 206-1 and lens 206-2.The first image light L1 marches to polarizing beam splitter 200, the second image light L2 by a lens 206-1 first again and marches to polarizing beam splitter 200 by a lens 206-2 first again.It should be noted that lens 206-1 is arranged between the light source and polarizing beam splitter 200 of the first image light L1, lens 206-2 is arranged between the light source and polarizing beam splitter 200 of the second image light L2.The focal length of lens module 206-1 and 206-2 is large than the focal length of lens module 106 among the first embodiment, so that the first penetrating light L of scioptics module 206-1 and 206-2 P1Or the second reverberation L S2Can focus on a focal point F.Image Sensor 208 is arranged on the focal point F of lens module 206-1 and 206-2, in order to the first penetrating light L of sensing focusing P1Or the second reverberation L that focuses on S2Polaroid 204 optionally allows the first penetrating light L P1Or the second reverberation L S2By.
Please refer to Fig. 2 A, it illustrates among the second embodiment, applies the situation that the liquid crystal shutter 202 of voltage V is unlocked.In this embodiment, the first penetrating light L is only arranged P1And the second reverberation L S2Light path can lead to Image Sensor 208.The first penetrating light L P1And the second reverberation L S2In the process of advancing, can be first by the liquid crystal shutter 202 of unlatching, the liquid crystal shutter 202 of unlatching can't be made phase delay to light.The first penetrating light L P1And the second penetrating light L P2For example be a p polarised light, the first reverberation L S1And the second reverberation L S2For example be a s polarised light, the first penetrating light L P1 Liquid crystal shutter 202 by unlatching still is the p polarised light, the second reverberation L S2 Liquid crystal shutter 202 by unlatching still is the s polarised light.Then, the first penetrating light L P1And the second reverberation L S2March to the polaroid 204 that only allows the s polarised light to pass through, therefore, the second reverberation L is only arranged S2Be able to focus on Image Sensor 208 by polaroid 204.That is to say, when the liquid crystal shutter 202 of Fig. 2 A was unlocked, what Image Sensor 208 detected was the image of the incident direction of the second image light L2.
Please then refer to Fig. 2 B, it illustrates when not applying a voltage to liquid crystal shutter 202 among the second embodiment, the situation that liquid crystal shutter 202 is closed.In this embodiment, the first penetrating light L is only arranged P1And the second reverberation L S2Light path can lead to Image Sensor 208.The first penetrating light L P1And the second reverberation L S2In the process of advancing, meeting is the liquid crystal shutter 202 by closing first.It should be noted that the first penetrating light L P1And the second reverberation L S2By understanding by phase delay behind the liquid crystal shutter 202 of closing.For instance, the first penetrating light L P1And the second penetrating light L P2For example be a p polarised light, the first reverberation L S1And the second reverberation L S2For example be a s polarised light, as the first penetrating light L P1By being delayed the polarised light into s behind the liquid crystal shutter 202 of closing, the second reverberation L S2Be delayed the polarised light into p by the liquid crystal shutter 202 of closing.Therefore, the first penetrating light L that is delayed is only arranged P1Be able to focus on Image Sensor 208 by polaroid 204 (only allow s polarised light by).That is to say, when the liquid crystal shutter 202 of Fig. 2 B was closed, what Image Sensor 208 detected was the image of the incident direction of the first image light L1.
The 3rd embodiment
Please refer to Fig. 3 A and 3B, it illustrates the schematic diagram of the Image sensor apparatus 30 of third embodiment of the invention.As shown in Figure 3A, Image sensor apparatus 30 comprises a polarizing beam splitter 300, a liquid crystal shutter 302, a polaroid 304, a lens module 306 and an Image Sensor 308.In polarizing beam splitter 300, liquid crystal shutter 302, polaroid 304 and the Image Sensor 308 of this embodiment, can be identical with the counter element of the first embodiment and the second embodiment.Only illustrate among this embodiment and not the existing together of the first embodiment and the second embodiment in this, all the other exist together mutually and will repeat no more.
Shown in Fig. 3 A and 3B, lens module 306 is to be arranged between polarizing beam splitter 300 and the liquid crystal shutter 302.The focal length of lens module 306 is between the focal length of the lens module 206-1 of the lens module 106 of the first embodiment and the second embodiment and 206-2, the first penetrating light L of scioptics module 306 P1Or the second reverberation L S2Can focus on a focal point F.Image Sensor 308 is arranged on the focal point F of lens module 306, in order to the first penetrating light L of sensing focusing P1Or the second reverberation L that focuses on S2Polaroid 304 optionally allows the first penetrating light L P1Or the second reverberation L S2By.Polaroid 304 in this embodiment for example is the polaroid that only allows the s polarised light to pass through.
Please refer to Fig. 3 A, it illustrates among the 3rd embodiment, applies the situation that the liquid crystal shutter 302 of voltage V is unlocked.After the first image light L1 and the second image light L2 marched to polarizing beam splitter 300, polarizing beam splitter 300 was separated into one first penetrating light L with the first image light L1 P1And one first reverberation L S1, and the second image light L2 is separated into one second penetrating light L P2And one second reverberation L S2The first penetrating light L P1And the second penetrating light L P2For example be a p polarised light, the first reverberation L S1And the second reverberation L S2It for example is a s polarised light.The first penetrating light L is only arranged P1And the second reverberation L S2Light path can arrive Image Sensor 308.The first penetrating light L P1And the second reverberation L S2Can focus on after the scioptics module 306.At the first penetrating light L P1And the second reverberation L S2Focus on the screening that need pass through first liquid crystal shutter 302 before the focal point F, because the liquid crystal shutter 302 of opening can't be made phase delay to light, therefore, by the first penetrating light L of the liquid crystal shutter 302 opened P1Still be the p polarised light, by the second reverberation L of the liquid crystal shutter 302 opened S2It still is the s polarised light.Therefore, the second reverberation L is only arranged S2Be able to focus on focal point F by polaroid 304 (only allow s polarised light by).That is to say, when the liquid crystal shutter 302 of Fig. 3 A was unlocked, what Image Sensor 308 detected was the image of the incident direction of the second image light L2.
Please then refer to Fig. 3 B, it illustrates and does not apply a voltage to liquid crystal shutter 302 among the 3rd embodiment to close the situation of liquid crystal shutter 302, will repeat no more the something in common with Fig. 3 A in this.It should be noted that because the first penetrating light L P1And the second reverberation L S2By understanding by phase delay behind the liquid crystal shutter 302 of closing.That is to say the first penetrating light L P1(p polarised light) and the second reverberation L S2(s polarised light) marches to when only allowing polaroid 304 that the s polarised light passes through, and the first penetrating light L that is delayed is only arranged P1Be able to focus on Image Sensor 308 by polaroid 304.That is to say, when the liquid crystal shutter 302 of Fig. 3 B was closed, what Image Sensor 308 detected was the image of the incident direction of the first image light L1.
The 4th embodiment
Please refer to Fig. 4 A and 4B, it illustrates the schematic diagram of the Image sensor apparatus 40 of fourth embodiment of the invention.Image sensor apparatus 40 can optionally detect one first image light L1 or one second image light L2, and the first image light L1 and the second image light L2 are essentially orthogonal.Shown in Fig. 4 A, Image sensor apparatus 40 comprises an optical spectroscope 400, a liquid crystal shutter module 402, a lens module 406 and an Image Sensor 408.In lens module 406 and the Image Sensor 408 of this embodiment, can be identical with the counter element of the first embodiment.In this not existing together of this embodiment and the first embodiment only is described, all the other exist together mutually and will repeat no more.
In this embodiment, optical spectroscope 400 can be an optical splitter (Beam Splitter, BS) or the polarizing beam splitter identical with the optical spectroscope 100 of the first embodiment.Before the polarizing beam splitter identical with the optical spectroscope 100 of the first embodiment has been illustrated in, will repeat no more in this.BS type optical splitter for example is part printing opacity and the reflective spectroscope of part that can allow light source be divided into two in varing proportions.Liquid crystal shutter module 402 comprises a liquid crystal shutter 402a and a liquid crystal shutter 402b.Liquid crystal shutter 402a is arranged at optical spectroscope 400 outsides near the position of the first image light L1, optionally to allow the first image light L1 pass through.Liquid crystal shutter 402b is arranged at optical spectroscope 400 outsides near the position of the second image light L2, passes through optionally to make the second image light L2.Lens module 406 is arranged between optical spectroscope 400 and the Image Sensor 408, in order to the first image light L1 by optical spectroscope 400 or the second image light L2 by optical spectroscope 400 are focused on a focal point F.Image Sensor 408 is to be arranged on the focal point F of lens module 406, in order to the first image light L1 of sensing focusing or the second image light L2 of focusing.
Please refer to Fig. 4 A, its illustrate apply a voltage V in liquid crystal shutter 402a opening liquid crystal shutter 402a, and do not apply a voltage to liquid crystal shutter 402b to close the situation of liquid crystal shutter 402b.Shown in Fig. 4 A, liquid crystal shutter 402a comprises that a liquid crystal layer 402a-3 and a pair of polaroid 402a-1 and 402a-2 are arranged at the relative both sides of liquid crystal layer 402a-3.Liquid crystal shutter 402b comprises that another liquid crystal layer 402b-3 and another are arranged at the relative both sides of liquid crystal layer 402b-3 to polaroid 402b-1 and 402b-2.Polaroid 402a-1 and polaroid 402b-2 are identical, for example are the polaroids that only allows the s polarised light to pass through.Polaroid 402a-2 and polaroid 402b-1 are identical, for example are the polaroids that only allows the p polarised light to pass through.
In this embodiment, when the first image light L1 marches to liquid crystal shutter 402a, a s polarised light L only X1Can enter liquid crystal layer 402a-3 by polaroid 402a-1, because the liquid crystal shutter 402a that opens can be to a s polarised light L X1Make phase delay, therefore, a s polarised light L X1To pass through polaroid 402a-2 when marching to polaroid 402a-2.When the second image light L2 marches to liquid crystal shutter 402b, the 2nd p polarised light L only Y2Can enter liquid crystal layer 402b-3 by polaroid 402b-1, because the liquid crystal shutter 402b that closes can be to the 2nd p polarised light L Y2Make phase delay, so that the 2nd p polarised light L Y2Change the 2nd s polarised light L into Y2 'Therefore, the 2nd s polarised light L that is delayed Y2 'Can pass through polaroid 402b-2.
Please continue the 4A with reference to figure, the 2nd s polarised light L that is delayed Y2 'After polaroid 402b-2, can be reflexed to lens module 406 by optical spectroscope 400, and focus on Image Sensor 408 with imaging via lens module 406.That is to say, in Fig. 4 A, liquid crystal shutter 402a is unlocked and liquid crystal shutter 402b when being closed, and what Image Sensor 408 detected is the image of the incident direction of the second image light L2.
Please then refer to Fig. 4 B, its illustrate apply a voltage V in liquid crystal shutter 402b opening liquid crystal shutter 402b, and do not apply a voltage to liquid crystal shutter 402a to close the situation of liquid crystal shutter 402a.In this part different from Fig. 4 A only is described, all the other similar parts repeat no more.
It should be noted that working as the first image light L1 marches to liquid crystal shutter 402a, only a s polarised light L X1Can enter liquid crystal layer 402a-3 by polaroid 402a-1, because the liquid crystal shutter 402a that closes is with a s polarised light L X1Delay is a p polarised light L X1 ', therefore, a p polarised light L who is delayed X1 'Can then pass through polaroid 402a-2.When the second image light L2 marches to liquid crystal shutter 402b, the 2nd p polarised light L only Y2Can enter liquid crystal layer 402b-3 by polaroid 402b-1, because the liquid crystal shutter 402b that opens can be to the 2nd p polarised light L Y2Make phase delay, therefore, the 2nd p polarised light L Y2Can't pass through polaroid 402b-2.
Please continue the 4B with reference to figure, a p polarised light L who is delayed X1 'After polaroid 402a-2, can penetrate optical spectroscope 400 to lens module 406, and focus on Image Sensor 408 with imaging via lens module 406.That is to say, in Fig. 4 B, when liquid crystal shutter 402a was closed and liquid crystal shutter 402b is unlocked, what Image Sensor 408 detected was the image of the incident direction of the first image light L1.
It should be noted that in this embodiment that only is arranged between optical spectroscope 400 and the Image Sensor 408 with lens module 406 and explain.Yet lens module 406 can also comprise two lens (not showing), is arranged at respectively between optical spectroscope 400 and the liquid crystal shutter 402a to reach between optical spectroscope 400 and the liquid crystal shutter 402b.Perhaps, these two lens can also be arranged at respectively the outside (near the position in the first image light L1 source) of liquid crystal shutter 402a and the outside (near the position in the second image light L2 source) of liquid crystal shutter 402b.As long as lens module 406 is arranged at the first image light L1 and the second image light L2 is passed in the light path of Image Sensor 408, be positioned at Image Sensor 408 position before, and Image Sensor 408 is that the position gets final product in the focus of lens module 406, is not restricted.In this embodiment, by the open and close of liquid crystal shutter 402a and liquid crystal shutter 402b, can optionally control the first image light L1 and the second image light L2 is delivered to Image Sensor 408 with imaging.
The application of the Image sensor apparatus of above-described embodiment
Above-described embodiment is to can be applicable to different types of optical interaction device or image monitoring, and below a little different application explain at this point.
Please refer to Fig. 5 A, it illustrates the schematic diagram according to the optical interaction device 5 of one embodiment of the invention.Optical interaction device 5 comprises Image sensor apparatus 50-1, Image sensor apparatus 50-2, and display floater 52.Image sensor apparatus 50-1 and Image sensor apparatus 50-2 are the Image sensor apparatus of any form in the Image sensor apparatus 10～40 of above-mentioned first to fourth embodiment.Shown in Fig. 5 A, Image sensor apparatus 50-1 and Image sensor apparatus 50-2 are arranged on the diverse location of side of display floater 52.Preferably, Image sensor apparatus 50-1 and Image sensor apparatus 50-2 are arranged at respectively among the drift angle P1～P4 of display floater 52 on any two off-diagonal corner positions.When display floater 52 received a touching signal S, Image sensor apparatus 50-1 can locate touching signal S and be positioned on the dummy line f1, and Image sensor apparatus 50-2 can locate touching signal S and be positioned on the dummy line f2.Therefore, namely can locate touching signal S on dummy line f1 and dummy line f2 intersection point by two Image sensor apparatus, reach the function of touch panel two-dimensional localization.In this embodiment, touching signal S can not need to contact display floater 52, as long as touching signal S can be detected by Image sensor apparatus 50-1 and Image sensor apparatus 50-2.
Please then refer to Fig. 5 B, it illustrates the schematic diagram according to the optical interaction device 5 ' of one embodiment of the invention.Optical interaction device 5 ' comprises Image sensor apparatus 50-1, Image sensor apparatus 50-2, display floater 52 ' and a video identification device (not showing).Image sensor apparatus 50-1, Image sensor apparatus 50-2 and display floater 52 ' are identical with the counter element shown in Fig. 5 A, repeat no more in this.In this embodiment, when the user issues an instruction in display floater 52 ' the place ahead (this instruction for example is the instruction of gesture or limb action), the instruction that Image sensor apparatus 50-1 and Image sensor apparatus 50-2 can obtain the user, and instruction is passed to image recognition system, sensed the instruction of light signal representative with identification Image sensor apparatus 50-1 and Image sensor apparatus 50-2.Therefore, namely can identify the user in the three-dimensional instruction of display floater 52 ' the place ahead issue by Image sensor apparatus 50-1 and Image sensor apparatus 50-2.
In the present embodiment, though the explanation take two Image sensor apparatus as example, so only tool one Image sensor apparatus also can reach two-dimensional localization and the three-dimensional instruction recognition function of optical interaction device 5 '.
Please refer to Fig. 6, it illustrates the schematic diagram according to the surveillance 6 of one embodiment of the invention.In this embodiment, surveillance 6 comprises an Image sensor apparatus 60 and a memory element (not showing).Image sensor apparatus 60 is in fact the Image sensor apparatus of any form in the Image sensor apparatus 10～40 of above-mentioned first to fourth embodiment.As shown in Figure 6, metope W1 and metope W2 are orthogonal in fact.Image sensor apparatus 60 is the angles that are arranged at metope W1 and metope W2, and its monitoring range is the scope across D1 direction (image that is parallel in fact the incident light source of metope W1 direction) and D2 direction (image that is parallel in fact the incident light source of metope W2 direction).In other words, by a surveillance 6 with Image sensor apparatus 60, image that namely can be by switching rapidly the D1 direction and the image of D2 direction are with the image of Real Time Monitoring D1 and D2 direction.
In sum, the Image sensor apparatus of the above embodiment of the present invention can be by switching the image light source of different directions, with the image of the light source that optionally detects different directions.Therefore, use the optical interaction device of this Image sensor apparatus, can have positioning function and the three-dimensional instruction recognition function of two dimension concurrently.In addition, with the made surveillance of the Image sensor apparatus of the above embodiment of the present invention, can switch rapidly and detect the image of different directions, overcome the problem at traditional surveillance image dead angle, need to install the hardware cost of many monitors or tumbler except having reduced, and more be not subject to the restriction of installing space.
In sum, although the present invention discloses as above with preferred embodiment, so it is not to limit the present invention.The persond having ordinary knowledge in the technical field of the present invention, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Therefore, protection scope of the present invention is as the criterion when looking appended the claim scope person of defining.

Claims (10)

1. Image sensor apparatus, in order to the one first image light or the one second image light that detect different directions, this Image sensor apparatus comprises:
One polarizing beam splitter in order to receiving this first image light and this second image light, and is separated into one first penetrating light and one first reverberation with this first image light, and this second image light is separated into one second penetrating light and one second reverberation;
One liquid crystal shutter is in order to regulate and control this first penetrating light and this second catoptrical phase delay;
One polaroid is arranged at the exiting surface of this liquid crystal shutter, in order to optionally to allow this first penetrating light or this second reverberation pass through;
One lens module is with so that this first penetrating light or this second reverberation focus on a focus; And
One Image Sensor is arranged on this focus of this lens module, the second reverberation that first penetrating light that should focus in order to sensing maybe should focus on.
2. Image sensor apparatus according to claim 1, wherein this lens module comprises a first lens and one second lens, this first lens is to be arranged at this polarizing beam splitter near the side of this first image light, and these second lens are to be arranged at this polarizing beam splitter near the side of this second image light.
3. Image sensor apparatus according to claim 1, wherein this lens module is lens, these lens are to be arranged between this polarizing beam splitter and this liquid crystal shutter or to be arranged between this Image Sensor and this liquid crystal shutter.
4. Image sensor apparatus according to claim 1, wherein this polarizing beam splitter is a polarized light beam splitter PBS or a reflective polaroid DBEF.
5. Image sensor apparatus, in order to the one first image light or the one second image light that detect different directions, this Image sensor apparatus comprises:
One optical spectroscope is in order to receive and to transmit this first image light or this second image light to one first side of this optical spectroscope;
One liquid crystal shutter module comprises:
One first liquid crystal shutter comprises that a liquid crystal layer and a pair of polaroid are arranged at the relative both sides of this liquid crystal layer, and this first liquid crystal shutter is to be arranged at this optical spectroscope near the side of this first image light, passes through in order to optionally to make this first image light; And
One second liquid crystal shutter, comprise another liquid crystal layer and one another polaroid is arranged at the relative both sides of this another liquid crystal layer, this second liquid crystal shutter is to be arranged at this optical spectroscope near the side of this second image light, passes through in order to optionally to make this second image light;
One lens module, with so that this first image light or this second image light focus on a focus, this focus is this first side that is positioned at this optical spectroscope; And
One Image Sensor is arranged on the focus of this lens module, the second image light that the first image light that should focus in order to sensing maybe should focus on.
6. Image sensor apparatus according to claim 5, wherein this lens module comprises a first lens and one second lens, this first lens is to be arranged at this optical spectroscope near the side of this first image light, and these second lens are to be arranged at this optical spectroscope near the side of this second image light.
7. Image sensor apparatus according to claim 5, wherein this lens module is lens, these lens are to be arranged between this optical spectroscope and this Image Sensor.
8. Image sensor apparatus according to claim 5, wherein this optical spectroscope is a polarised light splitter PBS or a reflective polaroid DBEF.
9. the optical interaction device in an image source that receives different directions comprises:
One display floater;
One Image sensor apparatus is arranged on the primary importance of this display floater, and in order to the one first image light or the one second image light that detect different directions, this primary importance is the side that is positioned at this display floater, and this Image sensor apparatus comprises:
One optical spectroscope is in order to receive and to transmit this first image light or this second image light to one first side of this optical spectroscope;
One liquid crystal shutter module is in order to optionally to allow this first image light or optionally allow this second image light pass through;
One lens module, with so that this first image light or this second image light focus on a focus, this focus is this first side that is positioned at this optical spectroscope;
One Image Sensor is arranged on the focus of this lens module, the second image light that the first image light that should focus in order to sensing maybe should focus on; And
One image recognition system is used for maybe another instruction of the second image light representative of this focusing of an instruction of the first image light representative of this focusing that this Image Sensor of identification senses.
10. optical interaction device according to claim 9 wherein also comprises another Image sensor apparatus, is arranged on the second place of this display floater, and this second place is the side that is positioned at this display floater.
CN2012100685828A 2012-03-15 2012-03-15 Image sensing device and optical interactive device with same Pending CN103312956A (en)

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Application publication date: 20130918