KR102578136B1 - Device for varying laser emission angle and device for acquiring 2-dimensional image - Google Patents

Abstract

The present invention relates to a device that can change the laser emission angle and a device that can acquire two-dimensional images using the same.
The present invention includes laser modules facing each other; A light refraction module comprising: a laser module comprising one or more vertical cavity surface light-emitting laser diodes; the light refraction module comprising: an electroactive polymer material layer comprising an electroactive polymer material; Comprising an electro-active polymer material, formed on a first side of the electro-active polymer material layer facing the laser module or a fourth side of the electro-active polymer material layer facing the first side of the electro-active polymer material layer an optical pattern; a third electrode formed on a second side of the electroactive polymer material layer that faces the first and fourth sides of the electroactive polymer material layer; A laser emission angle variable element is provided, including a fourth electrode formed on a third side of the electroactive polymer material layer facing the second side of the electroactive polymer material layer.

Description

Laser emission angle variable element and 2-dimensional image acquisition device { DEVICE FOR VARYING LASER EMISSION ANGLE AND DEVICE FOR ACQUIRING 2-DIMENSIONAL IMAGE }

The present invention relates to a device that can change the laser emission angle and a device that can acquire two-dimensional images using the same.

More specifically, it relates to a device capable of controlling the emission angle of the laser, including a vertical cavity surface light-emitting laser and an electroactive polymer material, and a device including the same, capable of acquiring two-dimensional images.

A vertical-cavity surface-emitting laser (VCSEL) is a semiconductor laser diode that emits laser light in a direction perpendicular to its top surface. Vertical cavity surface light-emitting lasers can be used to generate dot patterns using the Structure Light (SL) method or to generate infrared rays using the Time of Flight (ToF) method.

However, since the vertical cavity surface optical emission laser emits laser in a direction perpendicular to the upper surface, there is a problem in that it cannot irradiate dot patterns or infrared rays in directions other than perpendicular to the upper surface.

To solve this problem, a diffuser can be provided, but the dot pattern or infrared rays emitted by the vertical cavity surface light-emitting laser and passing through the diffuser can be diffused only within a fixed angle range.

Therefore, there is a need for a device that can adjust the angular range over which dot patterns or infrared rays emitted by a vertical cavity surface light-emitting laser are spread.

The purpose of the present invention is to solve the above problems, including a laser emission angle variable element that can adjust the angular range in which light emitted from a vertical cavity surface light emission laser is spread, and a two-dimensional image using the same. The goal is to provide a device that can

In order to achieve the above object, the present invention includes laser modules facing each other; A light refraction module comprising: a laser module comprising one or more vertical cavity surface light-emitting laser diodes; the light refraction module comprising: an electroactive polymer material layer comprising an electroactive polymer material; Comprising an electro-active polymer material, formed on a first side of the electro-active polymer material layer facing the laser module or a fourth side of the electro-active polymer material layer facing the first side of the electro-active polymer material layer an optical pattern; a third electrode formed on a second side of the electroactive polymer material layer that faces the first and fourth sides of the electroactive polymer material layer; A laser emission angle variable element is provided, including a fourth electrode formed on a third side of the electroactive polymer material layer facing the second side of the electroactive polymer material layer.

In addition, the optical pattern is formed on the first surface of the electroactive polymer material layer, and provides a laser emission angle variable element in the form of a concave lenticular lens.

In addition, the optical pattern is formed on the fourth side of the electroactive polymer material layer, and provides a laser emission angle variable element in the form of a relief lenticular lens.

In addition, the electroactive polymer material is a copolymer of vinylidene fluoride, trifluoroethylene, and chlorofluoroethylene (P(VDF-TrFE-CFE), [poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)]) A laser emission angle variable device is provided.

And, the vertical cavity surface light-emitting laser diode includes a first electrode layer; a substrate layer doped with an n-type semiconductor material; a first Bragg mirror layer formed by alternately stacking thin films with different refractive indices and doped with an n-type semiconductor material; an activation layer formed by alternately stacking quantum well layers and barrier layers; a second Bragg mirror layer formed by alternately stacking thin films with different refractive indices and doped with a p-type semiconductor material; It includes a second electrode layer with an opening formed in a central region, the first electrode layer, the substrate layer, the first Bragg mirror layer, the activation layer, the second Bragg mirror layer, and the second electrode layer. Provided is a laser emission angle variable element stacked in the following order.

It further includes an electrical control module, wherein the electrical control module receives a light generation control signal to supply power to the vertical cavity surface light-emitting laser diode, and receives a light emission angle control signal to power the light refraction module. a control unit that supplies; A laser emission angle variable element is provided, including a power unit that converts alternating current electricity into direct current electricity or converts the size of direct current electricity and supplies it to the control unit.

In addition, a laser emission angle variable element is provided, further comprising a case module accommodating the laser module, the optical refraction module, and the electrical control module.

Another embodiment of the present invention includes the laser emission angle variable element; A light receiving lens module; a two-dimensional image sensor module; An image processing module is included, wherein the laser emission angle variable element emits first light, and the light-receiving lens module receives second light reflected by a subject irradiated with the first light, and produces the two-dimensional image. The sensor module converts the second light into a two-dimensional color signal, which is an electrical signal containing color information of a two-dimensional still image, and the image processing module converts the two-dimensional color signal into a digital signal to produce two-dimensional image data. Provides a two-dimensional image acquisition device that generates.

In addition, the two-dimensional image sensor module provides a two-dimensional image acquisition device that is a CCD image sensor (Charged Couple Device image sensor) or a CMOS active pixel sensor (Complementary Metal-Oxide Semiconductor active pixel sensor).

And, it further includes a control module, wherein the control module transmits a light generation control signal to the laser emission angle variable element to control the laser emission angle variable element to generate the first light, and the light emission angle is Transmitting a control signal to the laser emission angle variable element to control the emission angle when the laser emission angle variable element emits the first light, and transmitting a two-dimensional image data generation signal to the image processing module , providing a two-dimensional image acquisition device that controls the image processing module to generate the two-dimensional image data.

And, it further includes an output module, wherein the output module includes a display unit that is a display device, and the display unit displays the two-dimensional image data.

The laser emission angle variable element of the present invention includes a vertical cavity surface light-emitting laser, an optical pattern made of an electroactive polymer material and a layer of an electroactive polymer material facing the vertical cavity surface light emission laser, and the electroactive polymer material By using the change in refractive index due to the difference in applied voltage, the angular range in which the light emitted from the vertical cavity surface light-emitting laser is spread can be adjusted.

In addition, a two-dimensional image acquisition device including a laser emission angle variable element can easily specify an imaging area by adjusting the angle range in which light is emitted, allowing users to conveniently acquire two-dimensional image data.

1A and 1B are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a laser emission angle variable device according to a first embodiment of the present invention.
Figures 2a and 2b are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a laser emission angle variable device according to a second embodiment of the present invention.
Figure 3a is a longitudinal cross-sectional view briefly showing a laser module in one embodiment of the present invention.
Figures 3b and 3c are schematic diagrams showing the top view of the laser module in each embodiment of the present invention.
Figures 4a and 4b are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing the light refraction module in the first embodiment of the present invention.
Figure 4c is a diagram showing the angle before and after the first light is incident on the light refraction module in the first embodiment of the present invention.
5A and 5B are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a light refraction module in a second embodiment of the present invention.
Figure 5c is a diagram showing the angle before and after the first light is emitted from the light refraction module in the second embodiment of the present invention.
Figure 6 is a block diagram briefly showing a two-dimensional image acquisition device according to an embodiment of the present invention.

The present invention can be implemented with various changes without departing from the spirit, and can have one or more embodiments. In addition, in the present invention, the embodiments described in “specific details for carrying out the invention” and “drawings” are examples for specifically explaining the present invention, and do not limit or limit the scope of the present invention.

Accordingly, what a person skilled in the art of the present invention can easily infer from the “specific details for carrying out the invention” and “drawings” of the present invention shall be interpreted as falling within the scope of the present invention. can do.

In addition, the size and shape of each component shown in the drawings may be exaggerated for description of the embodiment, and do not limit the size and shape of the invention in actual practice.

Unless the terms used in the specification of the present invention are specifically defined, they may have the same meaning as those generally understood by those skilled in the art to which the present invention pertains.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1A and 1B are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a laser emission angle variable device according to a first embodiment of the present invention. Figures 2a and 2b are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a laser emission angle variable device according to a second embodiment of the present invention.

The laser emission angle variable element 100 according to an embodiment of the present invention can generate light and emit it to the outside. Additionally, the laser emission angle variable element 100 according to an embodiment of the present invention can adjust the emission angle of light.

The laser emission angle variable element 100 according to an embodiment of the present invention may include a laser module 110, an optical refraction module 120, an electrical control module 130, and a case module 140. there is.

There is a difference between the first and second embodiments of the present invention in the structure of the light refraction module 120, which is explained in FIGS. 4A to 4C and 5A to 5C.

FIG. 3A is a longitudinal cross-sectional view briefly showing the laser module in one embodiment of the present invention, and FIGS. 3B and 3C are schematic plan views of the laser module in each embodiment of the present invention.

FIG. 3A shows a longitudinal cross-section of the laser module 110 when the laser module 110 includes one vertical cavity surface emitting laser (VCSEL) diode.

The laser module 110 can generate light. The laser module 110 may be a vertical cavity surface light emitting laser (VCSEL) diode, and may receive electrical signals and convert them into optical signals.

As shown in FIG. 3A, the laser module 110 includes a first electrode layer 111, a substrate layer 112, a first Bragg mirror layer 113, an activation layer 114, which are stacked in order, It may include a second Bragg mirror layer 115 and a second electrode layer 116.

The first electrode layer 111 and the second electrode layer 116 may be electrodes made of an opaque conductive material. For example, the first electrode layer 111 and the second electrode layer 116 are aluminum (Al), titanium (Ti), iron (Fe), nickel (Ni), copper (Cu), silver (Ag), and gold, respectively. It may be made of (Au) or any of these alloys.

Alternatively, the first electrode layer 111 and the second electrode layer 116 may be electrodes made of a transparent conductive material. For example, the first electrode layer 111 and the second electrode layer 116 may be made of either ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide), respectively. The first electrode layer 111 and the second electrode layer ( 116) may consist of one layer. Alternatively, the first electrode layer 111 and the second electrode layer 116 may be made of two or more layers, and each layer may be made of an opaque conductive material or a transparent conductive material.

The second electrode layer 116 may have an opening (OP) formed in the central area. Light generated in the activation layer 114 may pass through the opening OP and be emitted to the outside of the laser module 110.

The substrate layer 112 may be made by doping an n-type semiconductor material. For example, the substrate layer 112 may be formed by adding an n-type dopant to gallium arsenide (GaAs).

The first Bragg mirror layer 113 and the second Bragg mirror layer 115 may be formed by alternately stacking thin films with a relatively high refractive index and thin films with a relatively low refractive index, respectively. And the thickness of the thin film may be 1/4 of the wavelength of light emitted from the laser module 110.

The first Bragg mirror layer 113 may be made by doping an n-type semiconductor material. For example, the first Bragg mirror layer 113 may be formed by adding an n-type dopant to aluminum arsenide (AlAs) or gallium arsenide (GaAs).

The second Bragg mirror layer 115 may be made by doping a p-type semiconductor material. For example, the second Bragg mirror layer 115 may be formed by adding a p-type dopant to aluminum gallium arsenide (AlGaAs) or gallium arsenide (GaAs).

The activation layer 114 may have a single quantum well structure consisting of one quantum well layer.

Alternatively, the activation layer 114 may be a multi-quantum well structure formed by alternately stacking quantum well layers 114a and barrier layers 114b. At this time, the quantum well layer 114a may be made of, for example, indium gallium arsenide (InGaAs), and the barrier layer 114b may be made of, for example, gallium arsenide (GaAs).

When voltage is applied to the first electrode layer 111 and the second electrode layer 116, electrons and holes recombine in the activation layer 114 and then return to the ground state, thereby generating the first light L1. You can. The first light L1 generated in the activation layer 114 is repeatedly reflected and oscillated between the first Bragg mirror layer 113 and the second Bragg mirror layer 115, and the size of the optical signal is amplified. You can. And the first light L1 may be emitted in the first direction D1 perpendicular to the second electrode layer 116.

Laser module 110 may include one or more vertical cavity surface emitting laser diodes (VCSEL).

The form of arranging one or more vertical cavity surface light-emitting laser diodes (VCSEL) may depend on the form of the dot pattern that the laser module 110 wants to generate and emit to the outside.

For example, as shown in FIG. 3B, one or more vertical cavity surface light emitting laser diodes (VCSEL) can be arranged in a matrix form so that the laser module 110 emits a dot pattern in a matrix form. Alternatively, as shown in FIG. 3C, one or more vertical cavity surface light-emitting laser diodes (VCSEL) may be arranged in a radiating form so that the laser module 110 emits a radiating dot pattern.

Figures 4a and 4b are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing the light refraction module in the first embodiment of the present invention. Figure 4c is a diagram showing the angle before and after the first light is incident on the light refraction module in the first embodiment of the present invention.

In the first embodiment of the present invention, the light refraction module 120 can adjust the emission angle of light. The light refraction module 120 may include an electro-active polymer (EAP), and transmits the first light L1 generated by the laser module (110 in FIGS. 1A and 1B) to a laser emission angle variable element. The angle of emission at (100) can be changed.

The light refraction module 120 may include an optical pattern 121, a third electrode 122, a fourth electrode 123, and an electroactive polymer material layer 124.

The first side (F1) of the electroactive polymer layer 124 is defined as the side where the light refraction module 120 faces the laser module (110 in FIGS. 1A and 1B). The second side (F2) and the third side (F3) of the electroactive polymer layer 124 face each other, and the second side (F2) and the third side (F3) do not face the first side (F1), respectively. Defined as not.

The optical pattern 121 may be in the form of a lenticular lens, and may be formed by arranging semi-cylindrical lenses in parallel on the first surface (F1) of the electroactive polymer material layer 124. Accordingly, when the optical pattern 121 is viewed in the first direction D1 (i.e., when looking at the optical refraction module 120 from the laser module (110 in FIGS. 1A and 1B)), it may appear to have a concave shape. there is. That is, it may be in the form of a concave lenticular lens.

The optical pattern 121 may diffuse the first light L1 emitted from the laser module (110 in FIGS. 1A and 1B) inside the light refraction module 120.

The third electrode 122 and the fourth electrode 123 may be positioned facing each other. For example, the third electrode 122 may be located on the second side (F2) of the electroactive polymer material layer 124, and the fourth electrode 123 may be located on the third side of the electroactive polymer material layer 124. It can be located at (F3).

The third electrode 122 and the fourth electrode 123 may be electrodes made of an opaque conductive material. For example, the third electrode 122 and the fourth electrode 123 are aluminum (Al), titanium (Ti), iron (Fe), nickel (Ni), copper (Cu), silver (Ag), and gold, respectively. It may be made of (Au) or any of these alloys.

Alternatively, the third electrode 122 and the fourth electrode 123 may be electrodes made of a transparent conductive material. For example, the third electrode 122 and the fourth electrode 123 may be made of either ITO (Indium Tin Oxide) or IZO (Indium Zinc Oxide), respectively.

The interior of the optical pattern 121 and the electroactive polymer material layer 124 may be filled with an electroactive polymer material (EAP). Electroactive polymer materials (EAPs) are copolymers of vinylidene fluoride, trifluoroethylene, and chlorofluoroethylene (P(VDF-TrFE-CFE), [poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)]). You can. Additionally, the boundary between the optical pattern 121 and the electroactive polymer material layer 124 may not be blocked by a wall to allow the electroactive polymer material (EAP) to pass through.

As an electric field is applied to the optical pattern 121 and the electroactive polymer material layer 124, the refractive index of the optical pattern 121 and the electroactive polymer material layer 124 may change by a value according to Equation 1 below.

In equation 1, represents the wavelength of the first light (L1), k represents the Kerr constant of the electroactive polymer material (EAP), and E represents the size of the electric field applied to the electroactive polymer material (EAP).

When a voltage is applied to the third electrode 122 and the fourth electrode 123, an electric field is formed between them, and the electroactive polymer material (EAP) inside the optical pattern 121 and the electroactive polymer material layer 124 The refractive index of It can change as much as

The angle before and after the first light L1 is incident on the light refraction module 120 can be expressed as Equation 2 below according to Snell's Law.

In Equation 2 represents the refractive index outside the light refraction module 120 and may be the same as the refractive index of air. represents the angle with respect to the normal line (P) before the first light (L1) is incident on the light refraction module 120. represents the refractive index of the electroactive polymer material (EAP), is a refraction angle representing the angle with respect to the normal line (P) after the light is incident on the refraction module 120.

Refractive index of electroactive polymer materials (EAP) ( ) increases, the refraction angle of the first light (L1) ( ) decreases. Conversely, the refractive index of electroactive polymer materials (EAP) ( ) decreases, the refraction angle of the first light (L1) ( ) increases.

The refraction angle of the first light (L1) ( ) is reduced, the emission area when the first light L1 is emitted from the light refraction module 120 may be increased. Conversely, the refraction angle of the first light (L1) ( ) increases, the emission area when the first light L1 is emitted from the light refraction module 120 may be reduced.

Accordingly, by adjusting the size of the electric field applied to the electroactive polymer material (EAP) inside the light refraction module 120, the refractive index ( ), the emission area of the first light L1 can be controlled.

5A and 5B are a perspective view and a longitudinal cross-sectional view, respectively, schematically showing a light refraction module in a second embodiment of the present invention. Figure 5c is a diagram showing the angle before and after the first light is emitted from the light refraction module in the second embodiment of the present invention.

In the second embodiment of the present invention, the optical pattern 121, the third electrode 122, the fourth electrode 123, and the electroactive polymer material layer 124 included in the light refraction module 120 are each , may be the same as the corresponding configuration of the first embodiment. In addition, the materials forming the optical pattern 121, the third electrode 122, the fourth electrode 123, and the electroactive polymer material layer 124 may be the same as the corresponding configuration of the first embodiment. .

The first side (F1) of the electroactive polymer layer 124 is defined as the side where the light refraction module 120 faces the laser module (110 in FIGS. 2A and 2B). The second side (F2) and the third side (F3) of the electroactive polymer layer 124 face each other, and the second side (F2) and the third side (F3) do not face the first side (F1), respectively. Defined as not. The fourth side (F4) of the electroactive polymer layer 124 is defined as the side facing the first side (F1).

The optical pattern 121 may be in the form of a lenticular lens, and may be formed by arranging semi-cylindrical lenses in parallel on the fourth surface F4 of the electroactive polymer material layer 124. Accordingly, when the optical pattern 121 is viewed in the second direction D2 (i.e., when the light refraction module 120 is viewed from the outside of the laser emission angle variable element (100 in FIGS. 2A and 2B), It may appear in a convex shape. That is, it may be in the form of a positive lenticular lens. Additionally, the boundary between the optical pattern 121 and the electroactive polymer material layer 124 may not be blocked by a wall to allow the electroactive polymer material (EAP) to pass through.

The optical pattern 121 may diffuse and emit the first light L1 incident into the light refraction module 120.

The third electrode 122 and the fourth electrode 123 may be positioned facing each other. For example, the third electrode 122 may be located on the second side (F2) of the electroactive polymer material layer 124, and the fourth electrode 123 may be located on the third side of the electroactive polymer material layer 124. It can be located at (F3).

As an electric field is applied to the optical pattern 121 and the electroactive polymer material layer 124, the refractive index of the optical pattern 121 and the electroactive polymer material layer 124 may change by the value according to Equation 1 above.

When a voltage is applied to the third electrode 122 and the fourth electrode 123, an electric field is formed between them, and the electroactive polymer material (EAP) inside the optical pattern 121 and the electroactive polymer material layer 124 The refractive index may change.

The angle before and after the first light L1 is emitted from the light refraction module 120 can be expressed as Equation 3 below according to Snell's Law.

In Equation 3 represents the refractive index of the electroactive polymer material (EAP). represents the angle with respect to the normal line P when the first light L1 entering the light refraction module 120 touches the optical pattern 121 and the outer boundary of the light refraction module 120. represents the refractive index outside the light refraction module 120 and may be the same as the refractive index of air. is an emission angle representing the angle with respect to the normal line P when the first light L1 is emitted from the light refraction module 120.

Refractive index of electroactive polymer materials (EAP) ( ) increases, the emission angle of the first light (L1) ( ) increases. Conversely, the refractive index of the light refractive module 120 ( ) decreases, the emission angle of the first light (L1) ( ) decreases.

The exit angle of the first light (L1) ( ) increases, the emission area may increase when the first light L1 is emitted from the light refraction module 120. Conversely, the emission angle of the first light L1 ( ) is reduced, the emission area when the first light L1 is emitted from the light refraction module 120 may be reduced.

Accordingly, by adjusting the size of the electric field applied to the electroactive polymer material (EAP) inside the light refraction module 120, the refractive index ( ), the emission area of the first light L1 can be controlled.

Looking at FIGS. 1B and 2B again, the electrical control module 130 can adjust the magnitude of the voltage applied to the laser module 110 and the light refraction module 120.

The electrical control module 130 may include a power unit 131 and a control unit 132.

The power unit 131 may receive alternating current (AC) from the outside of the laser emission angle variable element 100 and then convert it into direct current (DC). Alternatively, the power unit 131 may receive direct current (DC) electricity from the outside of the laser emission angle variable element 100 and then convert its size.

And the power unit 131 can supply converted direct current electricity (DC) to the control unit 132.

The control unit 132 adjusts the voltage according to the control signals (ECS1 and ECS2) received from the outside of the laser emission angle variable element 100 and supplies it to the laser module 110 and the light refraction module 120, respectively. .

For example, the control unit 132 receives the light generation control signal ECS1 and then applies different voltages to the first electrode layer 111 and the second electrode layer 116 of the laser module 110, respectively. You can. Accordingly, the laser module 110 may generate the first light L1 and emit it to the outside.

Additionally, the control unit 132 may receive the light emission angle control signal (ECS2) and then apply different voltages to the third electrode 122 and the fourth electrode 123 of the light refraction module 120, respectively. there is.

For example, by making the voltage difference between the third electrode 122 and the fourth electrode 123 relatively large, the refractive index of the light refraction module 120 ( ) can be increased, and the emission area of the first light L1 can be reduced.

Alternatively, the voltage difference between the third electrode 122 and the fourth electrode 123 is made relatively small, so that the refractive index of the light refraction module 120 ( ) can be reduced, and the emission area of the first light L1 can be increased.

The case module 140 can accommodate the laser module 110, the optical refraction module 120, and the electrical control module 130.

The case module 140 can fix the laser module 110, the light refraction module 120, and the electrical control module 130 so that the first light L1 is accurately transmitted to the subject.

Figure 6 is a block diagram briefly showing a two-dimensional image acquisition device according to an embodiment of the present invention.

The two-dimensional image acquisition device 1 according to an embodiment of the present invention can irradiate light to a subject SBJT and receive light reflected from the subject SBJT to generate two-dimensional image data. .

The two-dimensional image acquisition device 1 according to an embodiment of the present invention includes a laser emission angle variable element 100, a light receiving lens module 200, a two-dimensional image sensor module 300, and an image processing module ( 400), a control module 500, an input module 600, and an output module 700.

The laser emission angle variable element 100 may be the same as the laser emission angle variable element 100 according to an embodiment of the present invention described above.

The laser emission angle variable element 100 may generate the first light L1 and irradiate it to the subject SBJT. At this time, the laser emission angle variable element 100 can adjust the emission angle of the first light L1 to enlarge or reduce the imaging area SR. Additionally, the subject SBJT located in the capturing area SR may be irradiated with the first light L1 and then reflect the second light L2 in the direction where the two-dimensional image acquisition device 1 is located.

The light receiving lens module 200 may receive light reflected from the subject SBJT and transmit it to the interior of the two-dimensional image acquisition device 1.

The light receiving lens module 200 may be a convex lens and collects the second light L2 reflected from the subject SBJT located in the capturing area SR into the interior of the two-dimensional image acquisition device 1. You can.

The 2D image sensor module 300 may convert an optical signal reflected from the subject SBJT into an electrical signal including color information of a 2D still image.

The two-dimensional image sensor module 300 may be a CCD image sensor (Charged Couple Device image sensor) or a CMOS active pixel sensor (Complementary Metal-Oxide Semiconductor active pixel sensor).

The laser module 100 irradiates the first light L1 having a dot pattern to the subject SBJT, and then the two-dimensional image sensor module 500 radiates the second light L2 reflected from the subject SBJT and returned. ) can be converted into a two-dimensional color signal (CS), which is an electrical signal containing color information for each location.

The 2D image sensor module 500 may transmit the converted 2D color signal (CS) to the image processing module 400.

The image processing module 400 may generate two-dimensional image data (TID) from the two-dimensional color signal (CS).

The image processing module 400 may be a microprocessor or a digital signal processor.

The image processing module 400 can convert a two-dimensional color signal (CS), which is an analog signal, into two-dimensional image data (TID), which is a digital signal. Additionally, the image processing module 400 may perform a preprocessing task to remove noise from the 2D color signal (CS) converted to a digital signal.

The control module 500 can control a shooting start operation, capturing area designation, and two-dimensional image data (TID) generating operation.

The control module 500 may be a microprocessor or a digital signal processor.

The control module 500 receives the imaging start signal IS1 from the input module 600, and then controls the control unit (132 in FIGS. 1B and 2B) of the electrical control module 130 of the laser emission angle variable element 100. ) can transmit the light generation control signal (ECS1). The control unit (132 in FIGS. 1B and 2B) receives the light generation control signal (ECS1) and then sends light to the first electrode layer (111 in FIG. 3A) and the second electrode layer (116 in FIG. 3A) of the laser module 110. For each, a different voltage can be applied. Accordingly, the laser module 110 may generate the first light L1.

The control module 500 receives the imaging area designation signal IS2 from the input module 600, and then controls the control unit of the electrical control module 130 of the laser emission angle variable element 100 (see FIGS. 1B and 2B). 132), the light emission angle control signal (ECS2) can be transmitted. The control unit (132 in FIGS. 1B, 2B) receives the light emission angle control signal (ECS2) and then controls the third electrode (122 in FIGS. 4A, 4B, 5A, 5B) of the light refraction module 120. Different voltages may be applied to the and fourth electrodes (123 in FIGS. 4A, 4B, 5A, and 5B), respectively. Accordingly, when the laser emission angle variable element 100 emits the first light L1, the emission angle can be adjusted to designate the imaging area SR.

The control module 500 may receive the capture end signal IS3 from the input module 600 and then transmit a two-dimensional image data generation signal ECS3 to the image processing module 400. The image processing module 400 may receive the 2D image data generation signal (ECS3) and then convert the 2D color signal (CS) into a digital signal to generate 2D image data (TID).

The control module 500 may receive the image display signal IS4 from the input module 600 and then cause the image processing module 400 to transmit two-dimensional image data (TID) to the output module 700. .

The control module 500 may receive the image output signal IS5 from the input module 600 and then cause the image processing module 400 to transmit two-dimensional image data (TID) to the output module 700. .

The input module 600 may receive a capture start input, a capture area designation input, and a capture end input from the user of the two-dimensional image acquisition device 1.

The input module 600 may include first to fourth switches 610 to 640 and a switch controller 650.

The first switch 610 may receive a capture start input and a capture end input from the user of the two-dimensional image acquisition device 1. The first switch 610 may be a push button switch.

The second switch 620 may receive a capture area designation input from the user of the 2D image acquisition device 1. The second switch 620 may be a slide switch or a joystick.

The third switch 630 may receive an image display input from the user of the two-dimensional image acquisition device 1. The third switch 630 may be a push button switch.

The fourth switch 640 may receive an image output input from the user of the two-dimensional image acquisition device 1. The fourth switch 640 may be a push button switch.

The switch controller 650 may generate a signal and transmit it to the control module 500 when the first to fourth switches 610 to 640 receive input.

The switch controller 650 may include a shooting state storage unit that stores whether or not to shoot, and may store the shooting end state (SH) in the shooting state storage unit immediately after operating the 2D image acquisition device 1.

When the user of the 2D image acquisition device 1 inputs the first switch 610 once, the switch controller 650 may generate an imaging start signal IS1 and transmit it to the control module 500, You can change the shooting end state (SH) saved in the shooting state storage unit to the shooting start state (SB) and save it.

When the user of the 2D image acquisition device 1 inputs the first switch 610 again, the switch controller 650 may generate an imaging end signal IS3 and transmit it to the control module 500. , You can change the shooting start state (SB) saved in the shooting state storage unit to the shooting end state (SH) and save it.

That is, each time the user of the two-dimensional image acquisition device 1 inputs the first switch 610, the shooting start state (SB) and the shooting end state (SH) can be alternately changed, and accordingly, the shooting start signal (IS1) or a shooting end signal (IS3) can be transmitted to the control module 500 to control the shooting operation.

When the user of the two-dimensional image acquisition device 1 moves the second switch 620, the switch controller 650 sends a shooting area designation signal including distance information between the position where the second switch 620 moved and the origin. (IS2) can be generated and transmitted to the control module 500. And the control module 500 includes the third electrode (122 in FIGS. 4A, 4B, 5A, and 5B) and the fourth electrode (122 in FIGS. 4A, 4B, 5A, and 5B) of the light refraction module 120 of the laser emission angle variable element 100. A light emission angle control signal (ECS2) may be generated such that the voltage difference between FIGS. 4B, 5A, and 123) of FIG. 5 is proportional to the distance information between the position where the second switch 620 moves and the origin. .

When the user of the 2D image acquisition device 1 inputs the third switch 630, the switch controller 650 may generate an image display signal IS4 and transmit it to the control module 500. Additionally, the control module 700 may cause the image processing module 400 to transmit two-dimensional image data (TID) to the output module 700 and display it.

When the user of the 2D image acquisition device 1 inputs the fourth switch 640, the switch controller 650 may generate an image output signal IS5 and transmit it to the control module 500. Additionally, the control module 500 may cause the image processing module 400 to transmit two-dimensional image data (TID) to the output module 700 and output it to the outside of the two-dimensional image acquisition device 1.

The output module 700 can display the captured image and transmit it to the outside of the two-dimensional image acquisition device 1.

The output module 700 may include a display unit 710 and a communication unit 720.

The display unit 710 may receive two-dimensional image data (TID) from the image processing module 400 and display it. And the display unit 710 may be a display device.

The communication unit 720 may receive two-dimensional image data (TID) from the image processing module 400 and transmit it to the outside of the two-dimensional image acquisition device 1.

The communication unit 720 includes a serial port, a parallel port, SCSI (Small Computer System Interface), USB (Universal Serial Bus), IEEE 1394, ATA (Advanced Technology Attachment), and SATA (Serial Advanced). Technology Attachment), M.2, PCI (Peripheral Component Interconnect Bus) PCI-Express, etc. may be included.

Alternatively, the communication unit 720 may include a modem implementing a short-range wireless communication protocol such as Wi-Fi, Bluetooth, Near Field Communication (NFC), or ZigBee.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and may be varied within the scope of the detailed description and accompanying drawings, as long as it does not deviate from the spirit of the present invention and does not impair the effect. It can be implemented by changing it accordingly. It is also natural that such embodiments fall within the scope of the present invention.

1: 2D image acquisition device 100: Laser emission angle variable element
110: Laser module 111: First electrode layer
112: substrate layer 113: first Bragg mirror layer
114: activation layer 115: second Bragg mirror layer
116: second electrode layer 120: light refraction module
121: Optical pattern 122: Third electrode
123: Fourth electrode 124: Electroactive polymer material layer
130: Electrical control module 131: Power unit
132: control unit 140: case module
200: light receiving lens module 300: 2D image sensor module
400: Image processing module 500: Control module
600: Input module 610 ~ 640: 1st to 4th switches
650: Switch controller 700: Output module
710: display unit 720: communication unit

Claims (11)

Laser modules facing each other; Comprising a light refraction module,
The laser module is,
comprising one or more vertical cavity surface light-emitting laser diodes;
The light refraction module is,
an electroactive polymer material layer comprising an electroactive polymer material;
Comprising an electro-active polymer material, formed on a first side of the electro-active polymer material layer facing the laser module or a fourth side of the electro-active polymer material layer facing the first side of the electro-active polymer material layer an optical pattern;
a third electrode formed on a second side of the electroactive polymer material layer that faces the first and fourth sides of the electroactive polymer material layer;
Comprising a fourth electrode formed on a third side of the electroactive polymer material layer facing the second side of the electroactive polymer material layer,
Laser emission angle variable element.
According to claim 1,
The optical pattern is,
Formed on the first side of the electroactive polymer material layer,
In the form of a concave lenticular lens,
Laser emission angle variable element.
According to claim 1,
The optical pattern is,
Formed on the fourth side of the electroactive polymer material layer,
In the form of a positive lenticular lens,
Laser emission angle variable element.
According to claim 1,
The electroactive polymer material is,
A copolymer of vinylidene fluoride, trifluoroethylene, and chlorofluoroethylene (P(VDF-TrFE-CFE), [poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene)]),
Laser emission angle variable device.
According to claim 1,
The vertical cavity surface light-emitting laser diode,
a first electrode layer;
a substrate layer doped with an n-type semiconductor material;
a first Bragg mirror layer formed by alternately stacking thin films with different refractive indices and doped with an n-type semiconductor material;
an activation layer formed by alternately stacking quantum well layers and barrier layers;
a second Bragg mirror layer formed by alternately stacking thin films with different refractive indices and doped with a p-type semiconductor material;
It includes a second electrode layer forming an opening in the central area,
The first electrode layer, the substrate layer, the first Bragg mirror layer, the activation layer, the second Bragg mirror layer, and the second electrode layer are laminated in that order,
Laser emission angle variable device.
According to claim 1,
further comprising an electrical control module,
The electrical control module is,
a control unit configured to receive a light generation control signal to supply power to the vertical cavity surface light-emitting laser diode and to receive a light emission angle control signal to supply power to the light refraction module;
Comprising a power unit that converts alternating current electricity into direct current electricity or converts the size of direct current electricity and supplies it to the control unit,
Laser emission angle variable device.
According to claim 6,
Further comprising a case module accommodating the laser module, the optical refraction module, and the electrical control module,
Laser emission angle variable element.
The laser emission angle variable element according to any one of claims 1 to 7; A light receiving lens module; a two-dimensional image sensor module; Includes an image processing module,
The laser emission angle variable element emits first light,
The light receiving lens module receives the second light reflected by the subject when irradiated with the first light,
The two-dimensional image sensor module converts the second light into a two-dimensional color signal, which is an electrical signal including color information of a two-dimensional still image,
The image processing module converts the two-dimensional color signal into a digital signal to generate two-dimensional image data.
2D image acquisition device.
According to claim 8,
The two-dimensional image sensor module,
A CCD image sensor (Charged Couple Device image sensor) or a CMOS active pixel sensor (Complementary Metal-Oxide Semiconductor active pixel sensor),
2D image acquisition device.
According to claim 8,
further comprising a control module,
The control module is,
Transmitting a light generation control signal to the laser emission angle variable element to control the laser emission angle variable element to generate the first light,
Transmitting a light emission angle control signal to the laser emission angle variable element to control the emission angle when the laser emission angle variable element emits the first light,
Transmitting a two-dimensional image data generation signal to the image processing module and controlling the image processing module to generate the two-dimensional image data,
2D image acquisition device.
According to claim 10,
further comprising an output module,
The output module includes a display unit, which is a display device,
The display unit displays the two-dimensional image data,
2D image acquisition device.