JP6648963B2 - Optical system - Google Patents

Description

  The present invention relates to an optical system that can be used to guide a person to a predetermined position using an optical device capable of lighting and displaying.

  2. Description of the Related Art Conventionally, a technology for displaying a space where a car is not parked in a parking lot has been proposed (Patent Document 1).

JP 2009-174246 A

  However, the technology described in Patent Literature 1 cannot know an empty space when entering a parking lot.

  The present invention provides an optical system capable of accurately grasping information by illuminating or displaying target position information and guide information to the target position.

The optical system according to the present invention that achieves the above object,
An entry detection unit that detects that the vehicle has entered the parking lot,
After the entrance detection unit detects the entry of the vehicle into the parking lot, a system control unit that selects a designated position from a vacant space in the parking lot,
A system storage unit that stores the designated position;
Ticketing department that issues parking tickets,
A data writing unit that writes the designated position on the parking ticket;
An optical device that irradiates at least one of illumination light and display light,
A parking detection unit that detects a position where the vehicle that has entered the parking lot is parked,
A payment machine for payment,
A data reading unit that reads the designated position written on the parking ticket by the payment machine;
With
When entering,
The system control unit includes:
On the way from the designated position or the ticket issuing unit to the designated position, guide information is radiated to the optical device,
Comparing the parking position of the vehicle detected by the parking detection unit with the designated position stored by the system storage unit,
When the parking position of the vehicle is different from the designated position, the data of the designated position in the system storage unit is deleted, and the operation of the optical device is stopped,
When the parking position of the vehicle is the designated position, the operation of the optical device is stopped,
When leaving,
The system control unit includes:
It is checked whether or not the designated position written in the parking ticket from the data writing unit at the time of entering the vehicle and read by the data reading unit of the payment machine is stored in the system storage unit,
When the designated position is stored in the system storage unit, in the middle of the designated position or the payment machine from the designated position, irradiate the optical device with guidance information,
When the specified position is not stored in the system storage unit, it is determined that the vehicle has not parked at the specified position, and the control is terminated .

In the optical system according to the present invention,
The guide information is illuminated in color.

Further, the optical system according to the present invention,
A light emitting unit that emits coherent light,
A receiving unit that receives a signal from the system control unit,
At least a first diffusion element region including a set of element diffusion elements in which predetermined information is recorded and a second diffusion element including a set of element diffusion elements in which information different from the first diffusion element region is recorded. A diffusion unit having a diffusion element divided into regions,
A scanning unit configured to reflect light emitted from the light emitting unit and scan the light so as to include at least one of the first diffusion element region and the second diffusion element region;
A control unit that drives the scanning unit by a signal received by the receiving unit,
It is characterized by having.

Further, the optical system according to the present invention,
A light emitting unit that emits coherent light,
A receiving unit that receives a signal from the system control unit,
At least a first diffusion element region including a set of element diffusion elements in which predetermined information is recorded and a second diffusion element including a set of element diffusion elements in which information different from the first diffusion element region is recorded. A diffusion unit having a diffusion element divided into regions,
A scanning unit that movably supports the diffusion unit so that light emitted from the light emitting unit scans at least one of the first diffusion element region and the second diffusion element region;
A control unit that drives the scanning unit by a signal received by the receiving unit,
It is characterized by having.

  ADVANTAGE OF THE INVENTION According to the optical system concerning this invention, by illuminating or displaying the target position information and the guide information to the target position, it becomes possible to grasp information accurately.

2 shows an initial state of the optical system of the present embodiment. FIG. 1 shows a system diagram of an optical system according to an embodiment. 3 shows an example of a flowchart when the optical system according to the present embodiment enters the vehicle. 4 shows an example of an operating state of the optical system according to the present embodiment when the vehicle enters. 4 shows an example of a flowchart when the optical system according to the present embodiment departs. 5 shows an example of an operation state of the optical system according to the present embodiment when the vehicle leaves the vehicle. 1 shows an example in which the optical system of the present embodiment is used in an indoor warehouse. FIG. 1 shows a system diagram of an optical device of the present embodiment. It is a side view in the 1st state of the irradiation part of the optical device of a 1st embodiment. FIG. 3 is a side view of the irradiation unit of the optical device according to the first embodiment in a second state. 5 is another example of the optical device according to the first embodiment. It is a side view in the 1st state of the irradiation part of the optical device of a 2nd embodiment. It is a front view in the 1st state of the irradiation part of the optical device of a 2nd embodiment. It is a front view in the 2nd state of the irradiation part of the optical device of a 2nd embodiment.

  Hereinafter, an optical system according to the present invention will be described with reference to the drawings.

  FIG. 1 shows an initial state of the optical system of the present embodiment.

  The case where the optical system 100 of the present embodiment is installed in a parking lot will be described as an example. The parking lot may be a commonly used facility. For example, as shown in FIG. 1, an entry gate 91 that passes when entering the vehicle, an exit gate 92 that passes when exiting the vehicle, and a payment machine 93 that adjusts the fare before leaving the vehicle are provided. The parking lot may be indoors.

  The optical system 100 of the present embodiment illuminates the parking light with illumination light 11 from the illumination unit 10 of the illumination light L optical device 1 at night in a normal initial state. For example, the illumination lamp L only needs to irradiate the minimum illumination light 11 at night when there is no moving object. The irradiation position may be around the illumination lamp L.

  FIG. 2 is a system diagram of the optical system according to the present embodiment.

  The optical system 100 includes an entry detection unit 51 as an entry detection unit, a parking detection unit 52 as a position detection unit, a data reading unit 53, a system control unit 70, a data writing unit 76, and a ticket issuing unit 77. , A system storage unit 60, and the optical device 1.

  The entry detection unit 51 is provided at the entry gate 91 and detects that a vehicle as an object has entered the parking lot. The data writing unit 76 writes designated position data instructed in the parking lot to a parking ticket issued by the ticket issuing unit 77 when entering the vehicle. The ticket issuing unit 77 issues a parking ticket in which the designated position data has been written by the data writing unit 76. The system storage unit 60 stores the designated position data written on the parking ticket.

  The parking detector 52 detects that the entered vehicle has been parked at the designated position. The method of detecting that the entered vehicle has parked is preferably monitored by a camera or the like. It is preferable to store the number when entering the vehicle and detect the position where the vehicle of the number is parked. When it is detected, the parking position in the parking lot is notified to the system control unit 70. The data reading section 53 transmits the parking position data written on the parking ticket to the reading system control section 70 when the payment is made by the payment machine 93 before leaving.

  Next, the operation of the optical system according to the present embodiment will be described. First, the control at the time of entering the vehicle will be described.

  FIG. 3 shows an example of a flowchart when the optical system according to the present embodiment enters the vehicle. In the flowchart in FIG. 3, the determination of YES is described as “Y”, and the determination of No is described as “N”.

  First, in step 1, the system control unit 70 determines whether or not there has been entry from the entry detection unit 51 (ST1). If there is no entry, the process returns to step 1.

  If there is an entry, the system control unit 70 selects and stores the designated position in step 2 before issuing a ticket (ST2). The designated position is selected from vacant spaces in the parking lot. Thereafter, the system control unit 70 causes the system storage unit 60 to store the selected designated position data.

  Next, in step 3, the system control unit 70 writes the designated position data in the parking ticket stored in the system storage unit 60 at the entrance gate 91, and issues a parking ticket (ST3).

  Next, in step 4, at least one optical device 1 is operated (ST4). The optical device 1 emits information for guiding a vehicle to a designated position based on designated position data selected by the system control unit 70.

  FIG. 4 illustrates an example of an operation state of the optical system according to the present embodiment when the vehicle enters.

  In the optical system 100 of the present embodiment, the optical device 1 in the illumination lamp L is operated, and the irradiation unit 10 emits information for guiding to the parking position based on the parking position data. For example, as shown in FIG. 4, the system control unit 70 causes the optical device 1 to irradiate the designated position T with illumination light as guidance information. In addition, the system control unit 70 causes the optical device 1 to emit the arrow 12 on the way to the designated position T as guide information. The guidance information may be radiated not only in white light but also in color.

  Next, in step 5, the system control unit 70 determines whether or not the entered vehicle is parked at the designated position T (ST5). The system control unit 70 compares the parking position detected by the parking detection unit 52 with the specified position based on the specified position data.

  If the entered vehicle is not parked at the designated position T in step 5, the designated position data stored in the system storage unit 60 is deleted in step 6 (ST6). After that, it proceeds to step 7.

  If the entered vehicle is parked at the designated position T in step 5, the operation of the optical device 1 is stopped in step 7 (ST7). That is, the irradiation of the information in step 4 is stopped, the illumination unit 11 of the illumination lamp L emits the illumination light 11 in a normal initial state, and the control ends.

  As described above, according to the optical system 100 of the present embodiment, by illuminating or displaying the target position information and the guide information to the target position, the information can be accurately grasped.

  Next, control at the time of departure will be described.

FIG. 5 shows an example of a flow chart when the optical system according to the present embodiment departs. In the flowchart in FIG. 5, the determination of YES is described as “Y”, and the determination of No is described as “N”.

  First, in step 11, the system control unit 70 determines whether a parking ticket has been read from the data reading unit 53 of the checkout machine 93 (ST11). If the parking ticket has not been read, the process returns to step S11.

  If the parking ticket has been read, in step 12, the system control unit 70 checks the designated position written on the parking ticket from the data writing unit 76 (ST12). Next, in step 13, the system control unit 70 checks whether or not the designated position is stored in the system storage unit 60 (ST13).

  If the designated position is not stored in the system storage unit 60 in step 13, it is determined that the vehicle has not parked at the designated position when entering, and the control is terminated.

  If the designated position is stored in the system storage unit 60 in Step 13, the optical device 1 is operated and counting is started in Step 14 (ST14). The optical device 1 emits information for guiding a person to a designated position based on designated position data selected by the system control unit 70.

  FIG. 6 shows an example of an operation state of the optical system according to the present embodiment at the time of departure.

  In the optical system 100 of the present embodiment, the irradiation unit 10 of the optical device 1 in the illumination lamp L is operated to irradiate information for guiding to the parking position based on the parking position data. For example, as shown in FIG. 6, the system control unit 70 causes the optical device 1 to irradiate the designated position T with illumination light as guidance information. In addition, the system control unit 70 causes the optical device 1 to emit the arrow 12 on the way to the designated position T as guide information. The guidance information may be radiated not only in white light but also in color.

  Next, in step 15, the system control unit 70 determines whether or not the vehicle has left the designated position T (ST15). The system control unit 70 compares the departed vehicle position detected by the parking detection unit 52 with a specified position based on the specified position data.

  If the vehicle has not departed from the designated position T in step 15, it is determined in step 16 whether a predetermined time has elapsed (ST16). If it is determined in step 16 that the predetermined time has not elapsed, the process returns to step 15. If it is determined in step 16 that the predetermined time has elapsed, the process proceeds to step 17.

  If the vehicle has departed from the designated position T in step 15, the designated position data stored in the system storage unit 60 is deleted in step 17 (ST17). Thereafter, in step 18, the operation of the optical device 1 is stopped (ST18). That is, the irradiation of the information in step 14 is stopped, the illumination unit 10 of the illumination lamp L emits the illumination light 11 in a normal initial state, and the control is terminated.

  As described above, according to the optical system 100 of the present embodiment, by illuminating or displaying the target position information and the guide information to the target position, the information can be accurately grasped.

FIG. 7 shows an example in which the optical system of the present embodiment is used in an indoor warehouse. This embodiment is a reference example and is not included in the present invention.

The optical system 100 of the present embodiment can also be used for indoor lighting. For example,
As shown in FIG. 7, it can be used for a plurality of lamps L installed on a ceiling C of a warehouse as a predetermined area.

  The example shown in FIG. 7 assumes a case where the person in charge M holds a card or the like that stores a shelf S at a predetermined designated position in order to store or acquire the package in the warehouse. In this case, it is preferable to use the moving body sensor 54 as the entry detection unit instead of the entry detection unit 51 shown in FIG. In the case of the present embodiment, the target object is a package or a person holding the package.

  Normally, the optical system 100 emits illumination light 11 from the illumination unit 10 of the optical device 1. In order to save power, the illumination light 11 may be emitted when the moving object sensor 54 detects a moving object.

  The person in charge M writes information of the shelf S at a predetermined designated position by the data writing unit 76 and holds a card or the like issued by the ticket issuing unit 77 or the like.

  When the data reading unit 53 shown in FIG. 2 receives a signal indicating information of the shelf S at a predetermined designated position from a card or the like and inputs the signal to the system control unit 70, the system control unit 70 Information on the location of the shelf S at the specified position is obtained. The system control unit 70 irradiates the floor F with an arrow 12 as guide information for guiding the irradiation unit 10 of the plurality of illumination lamps L to the shelf S at a predetermined designated position, Control is performed so that the irradiation unit 10 of the nearby lamp L irradiates the shelf 13 itself at a predetermined designated position with the illumination light 13 as guide information. Note that the data reading unit 53 may constitute an approach detection unit and a position detection unit.

  Thus, according to the optical device 1 of the present embodiment, it is possible for a person to accurately grasp target position information indoors.

  Next, a specific structure of the optical device 1 will be described.

  FIG. 8 is a system diagram of the optical device of the present embodiment. FIG. 9 is a side view of the optical device of the present embodiment in a first state. FIG. 10 is a front view of the optical device of the present embodiment in a first state.

  The optical device 1 according to the present embodiment includes a receiving unit 5, a storage unit 6, a control unit 7, and an irradiation unit 10. The irradiation unit 10 includes a light emitting unit 2, a scanning unit 3, and a diffusion unit 4.

  The light emitting unit 2 emits coherent laser light having a predetermined wavelength and directivity. The light emitting unit 2 may be a laser array in which a plurality of elements are bundled. Further, the light emitting section 2 may include laser beams of a plurality of wavelengths. Further, in order to optimize the incident light incident on the scanning unit, a light uniforming element such as a rod integrator or a fly-eye integrator, or a light shaping element such as a lens or a diaphragm may be provided. There may be a function of switching light emission timing by switching power ON / OFF, and a function of switching light emission timing using a shutter or the like. Further, the light emitting section 2 may be capable of irradiating laser beams of a plurality of wavelengths. For example, illumination light or display light can be colored by irradiating laser light corresponding to each of R (red), G (green), and B (blue). Note that a light source having a peak wavelength other than the above may be used. For example, color notation may be performed using two or more types of light sources that are not limited.

The scanning unit 3 has a function of causing light from the light emitting unit 2 to enter a predetermined position on the incident surface of the diffusion unit 4. For example, an optical member such as a mirror or a prism is mechanically rotated and vibrated to irradiate incident light from the light emitting unit to a predetermined position of the diffusion unit 4 using reflection or refraction. For example, MEMS (Micr
o A member called an optical scanner such as an Electro Mechanical System (Scanner) scanner or a polygon scanner, but is not limited thereto. The scanning unit 3 may be a member that movably supports the diffusion unit 4.

  The diffusion unit 4 has a diffusion element 40, and the diffusion element 40 is an aggregate including a plurality of element diffusion elements. The diffusion element 40 is, for example, a hologram. Each element hologram adjacent to the hologram basically has a separate irradiation area or a corresponding wavelength range of coherent light, but some areas may overlap. Different wavefronts are formed from each point of the element hologram exit surface, and are superimposed independently in the corresponding illuminated areas. Therefore, a uniform illuminance distribution can be obtained in a region to be illuminated by causing the hologram to enter the element hologram from a plurality of positions using the scanning light or the laser array light source. The shape of the irradiation area of the element hologram is a line and an arrow in the present case, but is not limited thereto.

The element hologram is manufactured by using scattered light from a scattering plate as object light on a hologram photosensitive material such as a photopolymer or a silver salt material. Laser light that is coherent light is used as the reference light. Then, when laser light is irradiated from the focal position of the reference light used for fabrication toward the hologram, a reproduced image of the scattering plate is reproduced at the position where the scattering plate used as the object light is located. This reconstructed image becomes the irradiation area of the element hologram. The use of an arrow-shaped scattering plate makes it possible to reproduce an arrow-shaped irradiation area. A hologram of a relief type (emboss type) may be used. It is also possible to design using a computer without using actual object light or reference light. The hologram obtained in this manner is called a computer generated hologram (CGH). Further, Fourier transform holograms having the same diffusion angle characteristic at each point on the hologram may be formed by computer synthesis. Further, a reflection hologram or a transmission hologram may be used.

  The advantage of providing a hologram as the diffusing element 40 is that the light energy density of laser light can be reduced by diffusion, and it can be used as a directional surface light source. The light source luminance for realizing the illuminance distribution can be reduced. Therefore, the distant illumination can be performed more safely.

  The diffusion element 40 may be various diffusion members that can be finely divided into a plurality of element diffusion regions, such as a microlens array.

  The receiving unit 5 receives a signal from the system control unit 70 and inputs the signal to the control unit 6. The storage unit 6 stores an area of the spreading unit 4 corresponding to the content received by the receiving unit 5. Note that the storage unit 6 may be included in the control unit 7. The control unit 7 drives the light emitting unit 2 and the scanning unit 3 according to instructions from the receiving unit 5 and the storage unit 6.

  In the optical device 1 according to the first embodiment, the irradiation light from the light emitting unit 2 is reflected by a mirror 31 which is a kind of the scanning unit 3 and is incident on the transmission hologram 40 of the diffusion element 40. The mirror 31 is configured to be movable in the X-X 'direction by being rotated about a rotation axis O by a motor (not shown) or the like. In the optical device 1 according to the first embodiment, the motor is driven based on the control command from the control unit 7 shown in FIG. It can hit any one of the hologram areas 42. Here, "rotation" means that an object rotates around a certain axis within a restricted angle range.

In the irradiation unit 10 of the optical device 1 according to the first embodiment, for example, in the first state illustrated in FIG. 9, the light irradiated from the light emitting unit 2 is reflected by the mirror 31 and the first hologram region 41 is reflected. The illumination light 11 is transmitted and transmitted. Then, in the second state in which the mirror 31 is rotated as shown in FIG. 10, the light emitted from the light emitting unit 2 is reflected by the mirror 31 and transmitted through the second hologram area 42 to display the arrow 15.

  With the above configuration, one optical device 1 can project a plurality of hologram reconstructed images. In the optical device 1 according to the first embodiment, the hologram reproduction image of the illumination light 11 and the arrow 15 is projected, but, for example, a hologram reproduction image of a character such as “STOP” or “BRAKE” is displayed. It is also possible to

  FIG. 11 is another example of the optical device according to the first embodiment.

  As shown in FIG. 11, the mirror 31 as one type of the scanning unit 3 may be configured to be rotatable about a first axis 3a and a second axis 3b orthogonal to the first axis 3a. Also in this case, a single optical device 1 can project a plurality of hologram reproduction images.

  Next, an optical device 1 according to a second embodiment will be described.

  FIG. 12 is a side view of the irradiation unit of the optical device according to the second embodiment in a first state. FIG. 13 is a front view of the irradiation unit of the optical device according to the second embodiment in a first state.

  The scanning unit 3 in the irradiation unit 10 of the optical device 1 according to the second embodiment includes a support rail 31 as an outer frame surrounding the outer periphery of the hologram 40 as the diffusion element 40, and the hologram 40 is two-dimensionally mounted on the support rail 31. And a guide rail 32 as a guide part for guiding the movable part. The guide rails 32 are movably supported at opposite ends by opposing support rails 31, and each side of the hologram 40 is movably supported by each guide rail 32. That is, although the position of the incident light from the light emitting unit 2 does not change, the position of the hologram 40 itself changes, so that the incident light can selectively enter a predetermined position of the hologram 40.

  For example, in the first state, the fifth hologram area 45 of the diffusion element 4 is irradiated from the light emitting unit 2 and the illumination light 11 is irradiated in a predetermined direction.

  Next, the operation of the optical device 1 according to the second embodiment will be described.

  FIG. 14 is a front view of the optical device according to the second embodiment in a second state.

  In order to move from the first state in which the light emitted from the light emitting unit 2 shown in FIG. 13 is applied to the fifth hologram area 45 to the second state in which the light is applied to the sixth hologram area 46 shown in FIG. First, a switching signal is input to the control unit 7 from the detection unit 5 shown in FIG. The control unit 7 acquires, from the storage unit 6, an area of the hologram 40 corresponding to the input content from the detection unit 5. After that, the control unit 7 drives the scanning unit 3 so that the area of the hologram 40 obtained from the storage unit 6 is irradiated from the light emitting unit 2.

  For example, in the second embodiment, a signal of a destination location is input from the detection unit 5 to the control unit 7. The control unit 7 acquires a signal stored in the storage unit 6 indicating that the region for displaying the arrow is the sixth hologram region 46. Then, the control unit 7 drives the scanning unit 3 so that the sixth hologram area 46 of the hologram 40 is irradiated from the light emitting unit 2.

  As described above, according to the optical device 1 of the present embodiment, it is possible to quickly and accurately switch the projection content according to a change in the state. In addition, it is possible to accurately illuminate a predetermined position.

As described above, according to the optical system 100 of the present embodiment, the entry detection unit 51 that detects entry of an object into a predetermined area, and the position detection unit that detects a designated position T for arranging the object. 52, the optical device 1 that irradiates at least one of the illumination light and the display light, and the position detection unit 52, after the entry detection unit 51 detects the entry of the target object into a predetermined area determined in advance. And a system control unit 70 for irradiating the optical device 1 with guidance information for guiding the target object to the detected designated position, by illuminating or displaying the designated position information and the guidance information up to the designated position T, The specified position T can be quickly found.

  Further, according to the optical system 100 of the present embodiment, when the target is located at the specified position T, the system storage unit 60 stores the relationship between the target and the specified position T, and the data for reading the data of the target. The system control unit 70 obtains a relationship between the target read by the data reading unit 53 and the designated position T from the system storage unit 60, and provides guidance information to the designated position T to the optical device 1. Therefore, the target placed at the designated position T can be quickly found.

  Further, according to the optical system 100 of the present embodiment, the designated position T is irradiated with the illumination light from the optical device 1 as the guide information, so that the designated position T or the target placed at the designated position T is accurately grasped. It becomes possible.

  In addition, according to the optical system 100 of the present embodiment, since the arrow is emitted from the optical device halfway to the designated position as the guide information, the designated position T or the target placed at the designated position T can be accurately identified. Can be grasped.

  Further, according to the optical system 100 of the present embodiment, since the guide information is radiated in color, it is possible to more accurately grasp the designated position T or the target placed at the designated position T.

  According to the optical system 100 of the present embodiment, the area is a parking lot, the entry detection unit 51 is an entry detection unit 51 that detects entry of a vehicle, and the position detection unit 52 is a The parking detector 52 detects a designated position where parking is possible for the parking lot, so that the designated position T of the parking lot can be accurately grasped.

  Further, according to the optical system 100 of the present embodiment, a ticket issuing unit 77 for issuing a parking ticket when entering a vehicle, and a data sheet for writing data of the designated position T detected by the parking detecting unit 52 to the parking ticket before the ticket is issued. And the parking portion 76, the vehicle disposed at the designated position T in the parking lot can be accurately grasped.

  Further, according to the optical device 1 of the present embodiment, at least the first hologram area 41 including a set of element holograms in which predetermined information is recorded and information different from the first hologram area 41 are recorded. A diffusing portion having a hologram 40 divided into a second hologram region 42 composed of a set of element holograms; Since the scanning unit 3 that scans the light so as to include one is provided, it is possible to quickly and accurately switch the projection content according to the input. In addition, it is possible to accurately illuminate a predetermined position.

Further, according to the optical device 1 of the present embodiment, at least the first hologram area 41 including a set of element holograms in which predetermined information is recorded and information different from the first hologram area 41 are recorded. A hologram unit 4 having a hologram 40 divided into a second hologram region 42 composed of a set of element holograms; Since the scanning unit 3 that movably supports the hologram unit 4 so as to perform scanning is provided, it is possible to quickly and accurately switch the projection content according to the input. In addition, it is possible to accurately illuminate a predetermined position.

  As described above, the optical system 100 has been described based on several embodiments, but the present invention is not limited to these embodiments, and various combinations or modifications are possible.

DESCRIPTION OF SYMBOLS 1 ... Optical device 2 ... Light emitting part 3 ... Scanning part 4 ... Diffusion part 5 ... Receiving part 6 ... Storage part 7 ... Control part 8 ... Drive part 100 ... Optical system 51 ... Entry detection part (entrance detection part)
52: Parking detection unit (position detection unit)
53: Data reading unit (entrance detecting unit, position detecting unit)
54: Moving body detection unit (entrance detection unit)
60 system storage unit 70 system control unit 76 data writing unit 77 ticketing unit

Claims (4)

An entry detection unit that detects that the vehicle has entered the parking lot,
After the entrance detection unit detects the entry of the vehicle into the parking lot, a system control unit that selects a designated position from a vacant space in the parking lot,
A system storage unit that stores the designated position;
Ticketing department that issues parking tickets,
A data writing unit that writes the designated position on the parking ticket;
An optical device that irradiates at least one of illumination light and display light,
A parking detection unit that detects a position where the vehicle that has entered the parking lot is parked,
A payment machine for payment,
A data reading unit that reads the designated position written on the parking ticket by the payment machine;
With
When entering,
The system control unit includes:
On the way from the designated position or the ticket issuing unit to the designated position, guide information is radiated to the optical device,
Comparing the parking position of the vehicle detected by the parking detection unit with the designated position stored by the system storage unit,
When the parking position of the vehicle is different from the designated position, the data of the designated position in the system storage unit is deleted, and the operation of the optical device is stopped,
When the parking position of the vehicle is the designated position, the operation of the optical device is stopped,
When leaving,
The system control unit includes:
When entering the vehicle, the specified position read from the data writing unit to the parking ticket and read by the data reading unit of the checkout machine is checked whether it is stored in the system storage unit.
When the designated position is stored in the system storage unit, in the middle of the designated position or the payment machine from the designated position, irradiate the optical device with guidance information,
The optical system according to claim 1, wherein when the specified position is not stored in the system storage unit, it is determined that the vehicle has not parked at the specified position, and the control is terminated . The optical system according to claim 1 , wherein the guidance information is radiated in a color. The optical device,
A light emitting unit that emits coherent light,
A receiving unit that receives a signal from the system control unit,
At least a first diffusion element region including a set of element diffusion elements in which predetermined information is recorded and a second diffusion element including a set of element diffusion elements in which information different from the first diffusion element region is recorded. A diffusion unit having a diffusion element divided into regions,
A scanning unit that reflects the light emitted from the light emitting unit and scans the light so as to include at least one of the first diffusion element region and the second diffusion element region;
A control unit that drives the scanning unit by a signal received by the receiving unit,
The optical system according to claim 1, further comprising: The optical device,
A light emitting unit that emits coherent light,
A receiving unit that receives a signal from the system control unit,
At least a first diffusion element region including a set of element diffusion elements in which predetermined information is recorded and a second diffusion element including a set of element diffusion elements in which information different from the first diffusion element region is recorded. A diffusion unit having a diffusion element divided into regions,
A scanning unit that movably supports the diffusion unit so that light emitted from the light emitting unit scans at least one of the first diffusion element region and the second diffusion element region;
A control unit that drives the scanning unit by a signal received by the receiving unit,
The optical system according to claim 1, further comprising:

Images