CN203217187U - Active optical zoom system based on silica-based liquid crystal - Google Patents

Active optical zoom system based on silica-based liquid crystal Download PDF

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Publication number
CN203217187U
CN203217187U CN 201320107340 CN201320107340U CN203217187U CN 203217187 U CN203217187 U CN 203217187U CN 201320107340 CN201320107340 CN 201320107340 CN 201320107340 U CN201320107340 U CN 201320107340U CN 203217187 U CN203217187 U CN 203217187U
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liquid crystal
silicon
control device
zoom
silica
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Withdrawn - After Issue
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CN 201320107340
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Chinese (zh)
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韦穗
刘春梅
沈川
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Anhui University
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Anhui University
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Abstract

The utility model relates to an active optical zoom system based on silica-based liquid crystal. The active optical zoom system comprises a polarizing beam splitter, a silica-based liquid crystal zoom device and an image sensor, wherein the silica-based liquid crystal zoom device and the image sensor are respectively arranged at two sides of the polarizing beam splitter; the silica-based liquid crystal zoom device comprises a silica-based liquid crystal element, a controller and a driving plate; the controller is connected with the driving plate through a transmission line; and the driving plate is connected with the silica-based liquid crystal element through a lead. As the silica-based liquid crystal, namely a spatial light modulator, is adopted to replace a zoom lens, the phase modulating characteristics of the silica-based liquid crystal is adopted to realize zooming, and the controller controls the silica-based liquid crystal element through a DVI (Digital Visual Interface) transmission line; and the active optical zoom system by the utility model has the characteristics of simple structure, small volume, light weight, fast focusing speed, low maintenance cost, wide application range and the like.

Description

A kind of active optics zoom system, pancreatic system based on liquid crystal on silicon
Technical field
The utility model relates to optical focal distance setting system, relates in particular to a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon.
Background technology
Optical zoom is that the position by camera lens, object and focus three parts changes and produces.When imaging surface moved in the horizontal direction, visual angle and focal length will change, and can make distant objects become clear.Therefore, change the focal length that the visual angle must change camera lens, just must change the focal length of camera lens by the relative position that changes each eyeglass in the zoom lens.Traditional mechanical type zoom system, pancreatic system is to form by the lens unit of several groups of fixed focal length, be to realize zoom by the relative position that changes each lens unit, and the mobile lens distance between cells is very accurate, mechanical type zoom system, pancreatic system complex structure, bulky, weight are big with regard to causing for this, focusing speed slowly, damage easily, problem such as later maintenance cost height and the scope of application are narrow.The mechanical type zoom system, pancreatic system makes the employing spatial light modulator carry out the on-mechanical zoom and has obtained extensive concern just because of the restriction that is subjected to aspects such as speed, size, weight, power, maintenance.By one or more spatial light modulators being added in the light inlet design, as the crystalline lens of our human eye, change of shape by the control spatial light modulator changes focal length, play the function that substitutes zoom lens, need not accurately to regulate the lens combination spacing, focusing speed is fast, and has simplified the structure of zoom system, pancreatic system, dwindled system bulk, alleviated system weight, maintenance cost is lower and the scope of application is wider.
The utility model content
For solving problems of the prior art, the purpose of this utility model is to provide a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon, adopt the liquid crystal on silicon in the spatial light modulator to substitute zoom lens, utilize the phase place modulating characteristic of liquid crystal on silicon to realize zoom, advantage such as have that volume is little, in light weight, focusing speed is fast, simple in structure, maintenance cost is low and the scope of application is wider.
The technical scheme that the utility model adopts:
A kind of active optics zoom system, pancreatic system based on liquid crystal on silicon comprises polarization spectroscope, liquid crystal on silicon zoom lens control device and imageing sensor; Described liquid crystal on silicon zoom lens control device and imageing sensor are separately positioned on the polarization spectroscope both sides; Described liquid crystal on silicon zoom lens control device comprises liquid crystal on silicon element, controller and drive plate, and controller links to each other with drive plate by transmission line, and drive plate links to each other with the liquid crystal on silicon element by lead-in wire.
The liquid crystal on silicon zoom lens control device is divided into the first liquid crystal on silicon zoom lens control device and the second liquid crystal on silicon zoom lens control device.
Be provided with spectroscope between the second liquid crystal on silicon zoom lens control device and the imageing sensor, the second liquid crystal on silicon zoom lens control device, spectroscope, imageing sensor are arranged on polarization spectroscope one side, and the first liquid crystal on silicon zoom lens control device is arranged on opposite side.
Be provided with lens between spectroscope and the second liquid crystal on silicon zoom lens control device.
Imageing sensor is ccd image sensor or cmos image sensor, and the transmission line between controller and drive plate is the DVI transmission line.
Be provided with lens between liquid crystal on silicon zoom lens control device and the polarization spectroscope.
Be provided with lens before the polarization spectroscope.
The beneficial effects of the utility model:
The utility model provides a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon, adopt this spatial light modulator of liquid crystal on silicon to substitute zoom lens, utilize the phase place modulating characteristic of liquid crystal on silicon to realize zoom, controller is by DVI transmission line control liquid crystal on silicon element, utilize the phase place modulating characteristic of liquid crystal on silicon to realize zoom, play the function that substitutes zoom lens, need not accurately to regulate the lens combination spacing, focusing speed is fast, and simplified the structure of zoom system, pancreatic system, dwindled system bulk, alleviated system weight, maintenance cost is lower and the scope of application is wider.
Description of drawings
Fig. 1 is first kind of structural representation of the present utility model;
Fig. 2 is second kind of structural representation of the present utility model;
Fig. 3 is the third structural representation of the present utility model;
Fig. 4 is the 4th kind of structural representation of the present utility model;
Fig. 5 is the 5th kind of structural representation of the present utility model;
Fig. 6 is the 6th kind of structural representation of the present utility model.
Embodiment
The utility model is according to the phase place modulation principle of liquid crystal on silicon, produces the phase diagram of the digital lens of different focal by computing machine, and phase diagram is loaded on the liquid crystal on silicon, comes modulating the incident light by liquid crystal on silicon, realizes the digital zoom lens function.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Embodiment one
As shown in Figure 1, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon, comprise polarization spectroscope 102, lens 103, the first liquid crystal on silicon zoom lens control device 5 and imageing sensor 100, the first liquid crystal on silicon zoom lens control device 5 and imageing sensor 100 are separately positioned on polarization spectroscope 102 both sides, and lens 103 are arranged between the first liquid crystal on silicon zoom lens control device 5 and the polarization spectroscope 102.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.Imageing sensor 100 is ccd image sensor or cmos image sensor.
Incident light 101 is divided into the vertical line polarisation of two bundles by polarization spectroscope 102.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501 through lens 103, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, and the S polarized light after the modulation is transmitted on the imageing sensor 100 through lens 103, polarization spectroscope 102.
Above-mentioned optical focal distance setting system is tested, adopted laser instrument to do transmitting illuminant, after spatial filter expands filtering, be radiated on the optical resolution plate, by above-mentioned optical focal distance setting system incident light is modulated, obtain the result and be presented on the imaging screen.
Embodiment two
As shown in Figure 2, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon, comprise polarization spectroscope 102, lens 103, the first liquid crystal on silicon zoom lens control device 5 and imageing sensor 100, before lens 103 were arranged on polarization spectroscope 102, the first liquid crystal on silicon zoom lens control device 5 and imageing sensor 100 were separately positioned on polarization spectroscope 102 both sides.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.Imageing sensor 100 is ccd image sensor or cmos image sensor.
Incident light 101 is divided into the vertical line polarisation of two bundles through lens 103 by polarization spectroscope 102.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, and the S polarized light after the modulation is transmitted on the imageing sensor 100 through polarization spectroscope 102.
Embodiment three
As shown in Figure 3, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon, comprise that polarization spectroscope 102, the first liquid crystal on silicon zoom lens control device 5 and imageing sensor 100, the first liquid crystal on silicon zoom lens control devices 5 and imageing sensor 100 are separately positioned on polarization spectroscope 102 both sides.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.Imageing sensor 100 is ccd image sensor or cmos image sensor.
Incident light 101 is divided into the vertical line polarisation of two bundles by polarization spectroscope 102.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, and the S polarized light after the modulation is transmitted on the imageing sensor 100 through polarization spectroscope 102.
Embodiment four
As shown in Figure 4, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon comprises polarization spectroscope 202, spectroscope 203, lens 204, lens 205, the first liquid crystal on silicon zoom lens control device 5, the second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200; The first liquid crystal on silicon zoom lens control device 5 and spectroscope 203 are separately positioned on polarization spectroscope 202 both sides, and lens 204 are arranged between the first liquid crystal on silicon zoom lens control device 5 and the polarization spectroscope 202; The second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200 are separately positioned on spectroscope 203 both sides, and lens 205 are arranged between the second liquid crystal on silicon zoom lens control device 6 and the spectroscope 203.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.The second liquid crystal on silicon zoom lens control device 6 comprises liquid crystal on silicon element 601, drive plate 602 and controller 603, and controller 603 links to each other with drive plate 602 by DVI transmission line 605, and drive plate 602 606 links to each other with liquid crystal on silicon element 601 by going between.Imageing sensor 200 is ccd image sensor or cmos image sensor.
Incident light 201 is divided into the vertical line polarisation of two bundles by polarization spectroscope 202.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501 through lens 204, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, S polarized light after the modulation is through lens 204, polarization spectroscope 202, spectroscope 203, lens 205 are transmitted on the liquid crystal on silicon element 601, controller 603 links to each other with drive plate 602 by DVI transmission line 605, control liquid crystal on silicon element 601 carries out zoom, and the S polarized light after the modulation is through lens 205, spectroscope 203 is transmitted on the imageing sensor 200.
Embodiment five
As shown in Figure 5, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon comprises polarization spectroscope 203, spectroscope 204, lens 202, the first liquid crystal on silicon zoom lens control device 5, the second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200; The first liquid crystal on silicon zoom lens control device 5 and spectroscope 204 are separately positioned on polarization spectroscope 203 both sides, before lens 202 are arranged on polarization spectroscope 203; The second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200 are separately positioned on spectroscope 204 both sides.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.The second liquid crystal on silicon zoom lens control device 6 comprises liquid crystal on silicon element 601, drive plate 602 and controller 603, and controller 603 links to each other with drive plate 602 by DVI transmission line 605, and drive plate 602 606 links to each other with liquid crystal on silicon element 601 by going between.Imageing sensor 200 is ccd image sensor or cmos image sensor.
Incident light 201 is divided into the vertical line polarisation of two bundles through lens 202 by polarization spectroscope 203.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, S polarized light after the modulation is transmitted on the liquid crystal on silicon element 601 through polarization spectroscope 203, spectroscope 204, controller 603 links to each other with drive plate 602 by DVI transmission line 605, control liquid crystal on silicon element 601 carries out zoom, and the S polarized light after the modulation is transmitted on the imageing sensor 200 through spectroscope 204.
Embodiment six
As shown in Figure 6, a kind of active optics zoom system, pancreatic system based on liquid crystal on silicon comprises polarization spectroscope 203, spectroscope 204, the first liquid crystal on silicon zoom lens control device 5, the second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200; The first liquid crystal on silicon zoom lens control device 5 and spectroscope 204 are separately positioned on polarization spectroscope 203 both sides; The second liquid crystal on silicon zoom lens control device 6 and imageing sensor 200 are separately positioned on spectroscope 204 both sides.The first liquid crystal on silicon zoom lens control device 5 comprises liquid crystal on silicon element 501, drive plate 502 and controller 503, and controller 503 links to each other with drive plate 502 by DVI transmission line 505, and drive plate 502 506 links to each other with liquid crystal on silicon element 501 by going between.The second liquid crystal on silicon zoom lens control device 6 comprises liquid crystal on silicon element 601, drive plate 602 and controller 603, and controller 603 links to each other with drive plate 602 by DVI transmission line 605, and drive plate 602 606 links to each other with liquid crystal on silicon element 601 by going between.Imageing sensor 200 is ccd image sensor or cmos image sensor.
Incident light 201 is divided into the vertical line polarisation of two bundles by polarization spectroscope 203.Wherein the P polarized light passes through fully, and the S polarized light is reflected with miter angle, be radiated on the liquid crystal on silicon element 501, controller 503 links to each other with drive plate 502 by DVI transmission line 505, control liquid crystal on silicon element 501 carries out zoom, S polarized light after the modulation is transmitted on the liquid crystal on silicon element 601 through polarization spectroscope 203, spectroscope 204, controller 603 links to each other with drive plate 602 by DVI transmission line 605, control liquid crystal on silicon element 601 carries out zoom, and the S polarized light after the modulation is transmitted on the imageing sensor 200 through spectroscope 204.

Claims (6)

1. the active optics zoom system, pancreatic system based on liquid crystal on silicon is characterized in that: comprise polarization spectroscope, liquid crystal on silicon zoom lens control device and imageing sensor; Described liquid crystal on silicon zoom lens control device and imageing sensor are separately positioned on the polarization spectroscope both sides; Described liquid crystal on silicon zoom lens control device comprises liquid crystal on silicon element, controller and drive plate, and controller links to each other with drive plate by transmission line, and drive plate links to each other with the liquid crystal on silicon element by lead-in wire.
2. active optics zoom system, pancreatic system according to claim 1, it is characterized in that: described liquid crystal on silicon zoom lens control device is divided into the first liquid crystal on silicon zoom lens control device and the second liquid crystal on silicon zoom lens control device, be provided with spectroscope between the described second liquid crystal on silicon zoom lens control device and the imageing sensor, the second liquid crystal on silicon zoom lens control device, spectroscope, imageing sensor are arranged on polarization spectroscope one side, and the first liquid crystal on silicon zoom lens control device is arranged on opposite side.
3. active optics zoom system, pancreatic system according to claim 2 is characterized in that: be provided with lens between described spectroscope and the second liquid crystal on silicon zoom lens control device.
4. active optics zoom system, pancreatic system according to claim 1, it is characterized in that: described imageing sensor is ccd image sensor or cmos image sensor, the transmission line between controller and drive plate is the DVI transmission line.
5. active optics zoom system, pancreatic system according to claim 1 is characterized in that: be provided with lens between described liquid crystal on silicon zoom lens control device and the polarization spectroscope.
6. active optics zoom system, pancreatic system according to claim 1 is characterized in that: be provided with lens before the described polarization spectroscope.
CN 201320107340 2013-03-08 2013-03-08 Active optical zoom system based on silica-based liquid crystal Withdrawn - After Issue CN203217187U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103149698A (en) * 2013-03-08 2013-06-12 安徽大学 Active optical zoom system based on silica-based liquid crystal and zoom method thereof
CN104406685A (en) * 2014-11-18 2015-03-11 深圳大学 Method of measuring a M 2 factor of laser beams based on transmission liquid crystal spatial light modulator
CN111459005A (en) * 2020-04-22 2020-07-28 北京航空航天大学 Space division multiplexing color holographic reproduction system and implementation method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103149698A (en) * 2013-03-08 2013-06-12 安徽大学 Active optical zoom system based on silica-based liquid crystal and zoom method thereof
CN103149698B (en) * 2013-03-08 2015-06-24 安徽大学 Active optical zoom system based on silica-based liquid crystal and zoom method thereof
CN104406685A (en) * 2014-11-18 2015-03-11 深圳大学 Method of measuring a M 2 factor of laser beams based on transmission liquid crystal spatial light modulator
CN111459005A (en) * 2020-04-22 2020-07-28 北京航空航天大学 Space division multiplexing color holographic reproduction system and implementation method
CN111459005B (en) * 2020-04-22 2021-08-27 北京航空航天大学 Space division multiplexing color holographic reproduction system and implementation method

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Granted publication date: 20130925

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