KR20170053254A - Projection apparatus - Google Patents

Projection apparatus Download PDF

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Publication number
KR20170053254A
KR20170053254A KR1020150155507A KR20150155507A KR20170053254A KR 20170053254 A KR20170053254 A KR 20170053254A KR 1020150155507 A KR1020150155507 A KR 1020150155507A KR 20150155507 A KR20150155507 A KR 20150155507A KR 20170053254 A KR20170053254 A KR 20170053254A
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KR
South Korea
Prior art keywords
light
source module
reflector
light source
projection
Prior art date
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KR1020150155507A
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Korean (ko)
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KR101770399B1 (en
Inventor
김동철
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김동철
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Priority to KR1020150155507A priority Critical patent/KR101770399B1/en
Publication of KR20170053254A publication Critical patent/KR20170053254A/en
Application granted granted Critical
Publication of KR101770399B1 publication Critical patent/KR101770399B1/en

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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J3/00—Acoustic signal devices; Arrangement of such devices on cycles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
    • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • B64C2201/00—

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Acoustics & Sound (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projection device, which is provided in a mobile device that is moved on the ground or the ground, and can display various types of pattern shapes on the ground.
According to an embodiment of the present invention, there is provided a projection device provided in a mobile device moving on a ground or a ground, the housing including a plurality of convex lenses having a projection light outlet and condensing reflection pattern light inside the projection light exit; A light source module for irradiating source pattern light, which is light having a pattern, into the housing; A reflector disposed in the housing to reflect the source pattern light emitted from the light source module to generate a reflection pattern light and direct the reflection pattern light to the projection light exit; And an angle of incidence of the light source module in accordance with the inclination of the reflector so that the reflection pattern light, which is coupled to both sides of the reflector and is directed to the projection light exit, is formed on the periphery of the mobile device, And an image distortion control unit.

Description

PROJECTION APPARATUS

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a projection device, which is provided in a mobile device that moves on the ground or the ground, and can display a pattern shape on the ground surface of the movement path.

Generally, bicycles have been widely used as a means of transportation. However, recently, as interest in leisure activities has been increased due to increased income levels, the retention rate of bicycles is increasing for dieting and leisure purposes.

These bicycles are equipped with front and back lights to help drivers to drive safely during driving.

However, the front and back lamps have been widely used in the past, but the light bulb is bright only at the center and dark at the periphery, so that the visibility at a distant place is somewhat lowered. In addition to this, the operating efficiency of the driver is lowered, Was also very high and there was a limit to beautify the design.

In addition, there have been a lot of researches to solve the problems of the conventional front and rear surfaces, and to improve the driving efficiency of the driver by using the front and rear surfaces.

Published Japanese Patent Application No. 10-2014-0092098 " Bicycle Display System "

An object of the present invention is to provide a projection device provided in a mobile device moving on the ground or ground to display various types of pattern shapes on the ground.

It is another object of the present invention to provide a projection device that can display a pattern shape displayed on the ground of a movement path without distortion.

According to an embodiment of the present invention, there is provided a projection device provided in a mobile device moving on a ground or a ground, the housing including a plurality of convex lenses having a projection light outlet and condensing reflection pattern light inside the projection light exit; A light source module for irradiating source pattern light, which is light having a pattern, into the housing; A reflector disposed in the housing to reflect the source pattern light emitted from the light source module to generate a reflection pattern light and direct the reflection pattern light to the projection light exit; And an angle of incidence of the light source module in accordance with the inclination of the reflector so that the reflection pattern light, which is coupled to both sides of the reflector and is directed to the projection light exit, is formed on the periphery of the mobile device, And an image distortion control unit.

The mobile device may be a bicycle, and the projection device may be provided on a rear surface opposite to the front surface and the front surface of the bicycle or on a side surface of the bicycle, respectively, and may transmit notification information on the front, rear, It can be projected.

The mobile device may be an unmanned airplane that automatically or manually flies according to the entered flight control information on the target point, the return point, and the flight altitude, and the projection device may receive notification information As shown in FIG.

The mobile device may be a vehicle, and the projection device may be provided on a rear surface of the vehicle opposite to the front surface and the front surface of the vehicle or on a side surface of the vehicle, respectively, to project vehicle notification information including the vehicle's brand logo or vehicle number Or to project situation information including traffic information or emergency situation information.

The phase distortion adjusting unit may include: a reflector tilt adjusting unit for adjusting a tilt of the reflecting mirror; A light source module position adjusting unit for adjusting an incident angle of the light source module facing the reflector; And a driving force relay unit transmitting the driving force of the reflector tilt adjusting unit to the light source module position adjusting unit so as to have a light source module incident angle twice as large as the tilt changing angle of the reflecting mirror.

Wherein the reflector inclination adjusting portion includes: a spur gear having a first toothed turntable and a second toothed turntable connected to each other at a gear ratio of 1: 2 to transmit a rotational force; And a reflector support shaft connecting the first toothed turntable and the reflector.

Wherein the driving force relay section includes: a first belt rotating plate connected in the rotational axis direction of the second toothed rotary plate and rotated simultaneously when the second toothed rotary plate rotates; And a second belt rotating plate connected to the first belt rotating plate by a belt and having the same gear ratio as the first belt rotating plate.

Wherein the light source module position adjustment unit comprises: a third sawtooth rotation plate connected in the direction of the rotation axis of the second belt rotation plate and rotated simultaneously by the rotation of the second belt rotation plate; A fourth toothed rotary plate that is positioned through the center of the reflector support shaft and is connected to the third toothed rotary plate at a gear ratio equal to that of the third toothed rotary plate to transmit a rotational force; And a light source module support shaft connecting the light source module and the fourth tooth rotation plate.

According to an embodiment of the present invention, various patterns such as a letter, a character, and a turn signal lamp are displayed on the front and rear surfaces of a bicycle which is moved on the ground, so that a driver can safely carry bicycles And additionally provide additional fun.

According to an embodiment of the present invention, various types of pattern information such as a landing position of an unmanned airplane, a delivery position of an article, an advertisement, and the like are displayed on a ground below a flight, It is possible to transmit the information to the manager or the consumer.

In addition, according to the embodiment of the present invention, it is possible to display various pattern shapes only by replacing a pattern film or a small-sized digital image output device used as a light source module without requiring a separate pattern-confirmed LED lamp, And can have economic utility.

1 is a view showing an operation of a projection apparatus according to an embodiment of the present invention.
2 is an external perspective view of a projection device according to an embodiment of the present invention.
3 is an internal perspective view of a projection apparatus according to an embodiment of the present invention.
4 is a cross-sectional view of the projection device according to the embodiment of the present invention viewed from the direction of H;
FIG. 5 is a view showing a rotation position of a light source module when a projection device according to an embodiment of the present invention has a tilting mirror. FIG.
6 is a view showing the rotation position of the light source module when the projection device according to the embodiment of the present invention has the reflector of the second tilt.
7A to 7D are views showing examples in which the projection device according to the embodiment of the present invention is disposed on the front, rear, and side surfaces of the bicycle.
8 is a view showing an example in which the projection device according to the embodiment of the present invention is disposed in an unmanned airplane.
9 is a view illustrating a light source module included in a projection apparatus according to an embodiment of the present invention.
10A to 10D are views showing an example in which the projection apparatus according to the embodiment of the present invention is disposed on the front face of the vehicle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, in order to explain the present invention in detail so that those skilled in the art can easily carry out the present invention. . Other objects, features, and operational advantages of the present invention, including its effects and advantages, will become more apparent from the description of the preferred embodiments. It should be noted that the same reference numerals are used to denote the same or similar components in the drawings.

2 is a perspective view of an external appearance of a projection apparatus according to an embodiment of the present invention. FIG. 3 is a perspective view of a projection apparatus according to an embodiment of the present invention. FIG. 4 is a cross-sectional view of the projection device according to the embodiment of the present invention viewed from the direction H, FIG. 5 is a perspective view of the projection device according to the embodiment of the present invention, FIG. 6 is a view showing the rotation position of the light source module when the projection device according to the embodiment of the present invention has the second tilt reflector, and FIGS. 7A to 7D are views FIG. 8 is a view showing an example in which the projection device according to the embodiment of the present invention is disposed in an unmanned airplane, FIG. 9 is a view showing an example in which the projection device according to the present invention is installed on the front, 10A to 10D are views showing an example in which a projection device according to an embodiment of the present invention is disposed on a front surface of a vehicle.

The projection apparatus 10 of the present invention is an apparatus for projecting light of various pattern shapes on a ground provided on a bicycle or a UAV that is moved on the ground or the ground. Therefore, as shown in Figs. 7A to 8 and Figs. 10A to 10D, on the ground, there are displayed direction indication, advertisement display, character display, target point display, notification information display, vehicle brand logo display, , Emergency notification information display, and so on.

7A to 7C, the projection device 10 includes a handle 510 and a predetermined portion on the front side of the bicycle 500 (hereinafter referred to as a front portion) and a saddle 520 (11, 12) on predetermined rear portions (hereinafter, referred to as rear portions) of the bicycle 500 and are provided with a direction indicating display, an advertising display, Various patterns can be displayed by examining a light pattern including a character display. The direction indicating indication may include traveling direction information such as straight ahead, left turn, and right turn of the bicycle 500, or may include speed information and running information of the bicycle 500. 7A to 7C, the projection device 10 displays different types of light patterns on the front portion and the rear portion so as to additionally provide driving and enjoyment of the bicycle 500 safely in daytime and nighttime .

7D, the projection device 10 is provided with a plurality of projections 13 on the front and back sides of the bicycle 500 as well as on the lateral sides of the bicycle 500, A character display or a notification information display.

8, the projection device 10 may be provided in a lower region of the UAV 600 such as a drone or the like, and may be positioned in front of or behind the UAV 600 in the direction of flight of the UAV 600, And the like can be illuminated to display various patterns. The unmanned airplane 600 transfers an article (for example, a general delivery item, a delivery item, etc.) to a lower portion of the base 610 by the rotation of the propeller 630 interlocked with the motor 620, The image of the lower area may be photographed through the image sensor 640.

10A to 10D, the projection device 10 may be provided on at least one of a front portion, a rear portion, and a side portion of the vehicle 700, so that the front, rear, or side The pattern of the owner of the vehicle 700 can be illuminated with a light pattern toward at least one of the vehicle 700 and the vehicle 700. [ At this time, the pattern of the owner of the vehicle 700 may include a vehicle brand logo, a vehicle number, a phrase, emergency notification information, and the like. Accordingly, when checking the position of the vehicle 700 in the parking lot, the vehicle 700 can be easily identified by the blinking of the vehicle number, the logo, etc., and the welcome function when the door 700 of the vehicle 700 is opened And so on.

The projection apparatus 10 includes a housing 100, a light source module 300, a reflector 200, and an image distortion control unit 400.

The housing 100 is a structure having a light source module 300, a reflector 200, and an image distortion control unit 400 in a housing. The housing 100 is not limited to materials such as opaque materials and transparent materials. The housing 100 may include a plurality of light sources in a single housing. In addition, the housing 100 has a projection light outlet 101. Accordingly, the light reflected by the reflecting mirror 200 through the projection light outlet 101 (hereinafter referred to as the 'reflected pattern light L2') is directed upward when being output.

The projection light outlet 101 may be provided with a plurality of convex lenses 102 for condensing the reflection pattern light L2. Accordingly, the reflected pattern light L2 reflected by the reflecting mirror 200 can have the effect of condensing light through the convex lens 102. [ Further, the projection light outlet 101 may be provided with an exit cover plate 103 made of a transparent material.

The light source module 300 irradiates the source pattern light L1, which is light having a pattern. To this end, the light source module 300 includes a light source 310 that emits light and a pattern film 320 that is disposed on the light path of the light source, as shown in FIG. The light source has a directivity such as an LED light source, a laser beam, and the like. In addition, the pattern film 320 is a film engraved with a pattern, and the shape of the pattern may have various shapes such as a turn signal lamp shape, a letter shape, and a symbol shape. Hereinafter, light emitted from the light source and output through the pattern film 320 will be referred to as source pattern light L1. In addition, the pattern film 320 may be formed to have a plurality of patterns of different shapes at the same time. In addition, the light source module 300 may further include a reflector plate 330 to increase light source efficiency. In addition, the light source module 300 may be implemented as a compact digital image output device. That is, a digital image output device capable of projecting various shapes instead of the light source module 300 provided with the pattern film can be realized.

The light source module 300 may be included in the housing 100, but may be partially exposed to the outside of the housing 100 as shown in FIG. If the light source module 300 is inside the housing 100, it is not easy to replace the pattern film in the light source module 300.

The reflector 200 reflects the source pattern light L 1 emitted from the light source module 300. Hereinafter, light reflected and output from the reflector 200 will be referred to as a reflection pattern light L2. The reflector 200 may be made of a metal material having a good reflection characteristic or a glass material coated with a reflective film. As described above, if the reflection characteristic exceeds the desired reflection threshold value, it will be apparent that the reflector 200 of various materials can be used.

The phase distortion adjusting unit 400 can adjust the incident angle of the light source module 300 according to the inclination of the reflecting mirror 200 so that the reflective pattern light L2 directed toward the projection light outlet 101 is formed without distortion on the ground surface. The phase distortion adjuster 400 is provided with a slope in the case of a front windshield glass or a rear windshield glass of a mobile device. In order to project the distortion without distortion on the sloped glass surface, The reflector 200 has the same reflector 200 as the reflector 200.

The reflective pattern light L2 must be reflected in consideration of the tilted angle of the front glass of the mobile device or the glass surface of the rear glass. Also, when the angle of the reflector 200 is changed, the angle of incidence of the light toward the reflector 200 should be moved at twice the angle in the same direction. This is because the reflected pattern light L2 reflected by the reflecting mirror 200 should always be directed to the projection light outlet 101. As shown in Fig. 5, when the slope of the glass surface of the mobile device is 45 deg., The inclination of the reflecting mirror must also be 45 deg. So that a distortionless pattern shape is formed on the glass. If the inclination of the glass surface is 45 degrees and the inclination of the reflector 200 is not 45 degrees, a distorted image is formed. However, since the reflection pattern light L2 may not be directed to the reflected light exit 101 when the inclination of the reflector 200 is changed, the embodiment of the present invention is not limited to the case where the reflection pattern light L2 is reflected even when the inclination of the reflector 200 is changed. Is always directed to the exit of the reflector.

Accordingly, the phase distortion controller 400 automatically adjusts the incident angle of the light source module 300 when the user adjusts the inclination of the reflector 200 according to the inclination of the ground. For this, the phase distortion controller 400 includes a reflector tilt controller 410, a light source module position controller 430, and a driving force repeater 420.

The reflector tilt adjusting unit 410 adjusts the inclination of the reflector 200. [ To this end, a spur gear in which the first toothed turntable 411 and the second toothed turntable 412 are connected to each other by a gear ratio of 1: 2 to transmit a rotational force, a spur gear that transmits the rotational force to the first toothed turntable 411 and the reflector 200 And a mirror support shaft 413 connected to the mirror support shaft 413. The spur gear is a gear device for connecting two parallel shafts, and is capable of converting and transmitting rotational force.

When the user rotates the teeth of the outer circumferential surface of the first toothed rotary plate 411 on the outer circumferential surface of the first toothed rotary plate 411 to the housing 100, 200 are changed. The rotational force of the first toothed turntable 411 is transmitted to the second toothed turntable 412 connected to the toothed gear so that the first toothed turntable 411 and the second toothed turntable 412 transmit the rotational force with a gear ratio of 1: do. Therefore, when the first toothed turntable 411 is rotated by the amount of rotation of 'A', the rotation of the second toothed turntable 412 is twice as much as that of the second toothed turntable 412. 3, the other end of the reflector supporting shaft 413 is supported by a take-up plate 414. The reflector supporting shaft 413 passes through the center of the take-up plate 414 at a distance.

The driving force relay unit 420 controls the driving force of the reflecting mirror inclination adjusting unit 410 to the light source module position adjusting unit 430 so that the angle of incidence of the light source module 300 is twice as large as the angle of inclination of the reflecting mirror 200, . The driving force relay unit 420 includes a first belt rotating plate 421 connected in the rotational axis direction of the second toothed rotating plate 412 and rotated simultaneously when the second toothed rotating plate 412 rotates, And a second belt rotating plate 422 connected to the first belt rotating plate 421 by a belt 423 and having the same gear ratio as the first belt rotating plate 421. Accordingly, when the first toothed turntable 411 is rotated by the amount of rotation of 'A', the rotation of the second toothed turntable 412 is twice as much as that of the second toothed turntable 412, The second belt rotary plate 422 having the same gear ratio as that of the second toothed rotary plate 412 can also be rotated by a rotation amount of 2A.

The light source module position adjustment unit 430 adjusts the incident angle of the light source module 300 toward the reflector 200. The light source module position adjustment unit 430 includes a third sawtooth rotation plate 431 connected in the direction of the rotation axis of the second belt rotation plate 422 and simultaneously rotated by the rotation of the second belt rotation plate 422, A fourth sawtooth rotation plate 432 which is positioned through the center of the first toothed disk 413 and is rotatably connected to the third toothed rotary plate 431 at the same gear ratio as that of the third toothed rotary plate 431, And a light source module supporting shaft 433 connected to the light source module.

Accordingly, when the first toothed turntable 411 is rotated by the amount of rotation of 'A', the rotation of the second toothed turntable 412 is twice as much as that of the second toothed turntable 412, The second belt rotary plate 422 having the same gear ratio as the second toothed rotary plate 412 is also rotated by the amount of 2A rotation and the same gear ratio as the rotating second belt rotary plate 422 of the 2A rotation amount The fourth toothed rotary plate 431 having the same gear ratio as that of the third toothed rotary plate 431 that is rotated by the amount of 2A And it rotates by '2A' turn amount.

As a result, when the first toothed turntable 411 to which the reflector 200 is connected rotates by an amount corresponding to 'A', the fourth toothed turntable 432 at the final stage can be rotated at a rate of '2A' have. Accordingly, the light source module supporting shaft 433 connected to the fourth toothed turntable 432 rotates, and the position of the light source module supporting shaft 433 can be changed by twice the position before the rotation. For reference, the reflector supporting shaft 413 passes through the fourth toothed turntable 432, and the fourth toothed turntable 432 is not rotated due to the rotation of the supporting shaft 413 of the reflector The rotation of the fourth tooth rotation plate 432 by the light source module support shaft 433 does not affect the mirror support shaft 413. [

5 and 6 are views showing incident angles of the light source module 300 according to inclination angles of the reflector 200. The reflector 200 is placed at the first position in a state in which the reflector 200 is tilted at 45 degrees, The reflection pattern light L2 can be irradiated to the inclined glass surface of the mobile device through the light guide plate 200.

6, the reflector 200 is tilted by 30 degrees in the counterclockwise direction. When the reflector 200 is tilted by 30 degrees, the reflector tilt adjusting unit 410, the light source module position adjusting unit 430, and the driving force transmitting unit 420 The light source module 300 is rotated and moved in the counterclockwise direction which is the same direction by 30 degrees which is twice the variation angle of the inclination angle of the reflecting mirror 200 by 15 degrees. The light source module 300 rotates in the same direction and has an incident angle change amount by twice the variation amount of the inclination angle of the reflector 200 so that the reflected pattern light L2 can be directed toward the fixed projection light exit 101 And the patterned reflected light can be formed without distortion in the glass.

The embodiments of the present invention described above are selected and presented in order to facilitate the understanding of those skilled in the art from a variety of possible examples. The technical idea of the present invention is not necessarily limited to or limited to these embodiments Various changes, modifications, and other equivalent embodiments are possible without departing from the spirit of the present invention.

10: projection device 100: housing
200: reflector 300: light source module
400: optical distortion control unit 410: reflector tilt adjustment unit
420: driving force relay unit 430: light source module position control unit
500: Bicycle 510: Handle
520: Saddle 600: Unmanned aircraft
700: vehicle

Claims (8)

The present invention relates to a projection device provided in a mobile device that is moved on the ground or the ground,
A housing including a plurality of convex lenses having a projection light exit and focusing the reflection pattern light inside the projection light exit;
A light source module for irradiating source pattern light, which is light having a pattern, into the housing;
A reflector disposed in the housing to reflect the source pattern light emitted from the light source module to generate a reflection pattern light and direct the reflection pattern light to the projection light exit; And
An image that can be adjusted in the incident angle of the light source module in accordance with the inclination of the reflecting mirror so that the reflection pattern light, which is inside the housing and is coupled to both sides of the reflecting mirror and is directed toward the projection light outlet, And a distortion control unit.
The method according to claim 1,
The mobile device may be a bicycle or a motorcycle,
The projection device is provided on a front surface of the bicycle or the motorcycle and a rear surface opposite to the front surface or on the side surface of the bicycle or the motorcycle so as to project the notification information on the front, Device.
The method according to claim 1,
The mobile device may be an unmanned airplane that automatically or manually fleets according to the input destination point, the return point, and the flight control information on the flight altitude,
Wherein the projection device projects notification information on a ground plane below the unmanned airplane when flying.
The method according to claim 1,
The mobile device may be a vehicle,
The projection device is provided on a rear surface opposite to the front surface and the front surface of the vehicle or on a side surface of the vehicle and projects vehicle notification information including the vehicle's brand logo or vehicle number, A projection device for projecting embedded contextual information.
The method according to claim 1,
The phase distortion controller may include:
A reflector tilt adjuster for adjusting the tilt of the reflector;
A light source module position adjusting unit for adjusting an incident angle of the light source module facing the reflector; And
And a driving force relay unit for transmitting a driving force of the reflector tilt adjusting unit to the light source module position adjusting unit so as to have a light source module incident angle twice as large as a tilt changing angle of the reflecting mirror.
The method of claim 5,
The reflector tilt adjuster may include:
A spur gear in which a first toothed turntable and a second toothed turntable are coupled to each other at a gear ratio of 1: 2 to transmit a rotational force; And
And a reflector support shaft connecting the first toothed turntable and the reflector.
The method of claim 6,
The driving-
A first belt rotating plate connected in the rotational axis direction of the second toothed rotating plate and rotated simultaneously when the second toothed rotating plate rotates; And
And a second belt rotating plate connected to the first belt rotating plate by a belt and having the same gear ratio as the first belt rotating plate.
The method of claim 7,
Wherein the light source module position adjustment unit comprises:
A third tooth rotation plate connected in the rotation axis direction of the second belt rotation plate and rotated simultaneously by the rotation of the second belt rotation plate;
A fourth toothed rotary plate that is positioned through the center of the reflector support shaft and is connected to the third toothed rotary plate at a gear ratio equal to that of the third toothed rotary plate to transmit a rotational force; And
And a light source module supporting shaft connecting the light source module and the fourth tooth rotation plate.
KR1020150155507A 2015-11-06 2015-11-06 Projection apparatus KR101770399B1 (en)

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KR1020150155507A KR101770399B1 (en) 2015-11-06 2015-11-06 Projection apparatus

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Application Number Priority Date Filing Date Title
KR1020150155507A KR101770399B1 (en) 2015-11-06 2015-11-06 Projection apparatus

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KR101770399B1 KR101770399B1 (en) 2017-08-22

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190068288A (en) * 2017-12-08 2019-06-18 현대자동차주식회사 Vehicle Information External Display System and Vehicle thereof
CN111152867A (en) * 2019-08-30 2020-05-15 上海钧正网络科技有限公司 Vehicle, controller, light projection device, method, system and medium

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190068288A (en) * 2017-12-08 2019-06-18 현대자동차주식회사 Vehicle Information External Display System and Vehicle thereof
CN111152867A (en) * 2019-08-30 2020-05-15 上海钧正网络科技有限公司 Vehicle, controller, light projection device, method, system and medium

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