WO2023035230A1 - Système de projection de trajet optique superposé remplaçable - Google Patents

Système de projection de trajet optique superposé remplaçable Download PDF

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Publication number
WO2023035230A1
WO2023035230A1 PCT/CN2021/117717 CN2021117717W WO2023035230A1 WO 2023035230 A1 WO2023035230 A1 WO 2023035230A1 CN 2021117717 W CN2021117717 W CN 2021117717W WO 2023035230 A1 WO2023035230 A1 WO 2023035230A1
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WO
WIPO (PCT)
Prior art keywords
optical path
projection
assembly
replaceable
superimposed
Prior art date
Application number
PCT/CN2021/117717
Other languages
English (en)
Chinese (zh)
Inventor
黄璐
李星
段丽峰
陈婵娟
石月
Original Assignee
深圳市麓邦技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市麓邦技术有限公司 filed Critical 深圳市麓邦技术有限公司
Priority to PCT/CN2021/117717 priority Critical patent/WO2023035230A1/fr
Publication of WO2023035230A1 publication Critical patent/WO2023035230A1/fr

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Classifications

    • 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
    • G03B21/20—Lamp housings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]

Definitions

  • the invention relates to the technical field of medical devices, and more specifically, to a replaceable superimposed optical path projection system.
  • a projector also known as a projector, is widely used in places such as homes, offices, and schools. It is a device that can project images or videos onto a screen. According to different working methods, projectors can be divided into CRT projectors, LCD projectors, DLP projectors, LCOS projectors and other types.
  • Patent Document 1 Choinese Patent CN101276523B discloses a starry sky projection device, which utilizes at least one incoherent light source and one coherent light source to superimpose the optical path, thereby producing a moving starry sky and cloud-like effects.
  • the projection device has a clear picture and high brightness, the projection effect of the projection device is single, and the projection content cannot be changed, so it cannot meet the diversified needs of users.
  • the technical problem to be solved by the present invention is that the existing projectors cannot realize the indicators of clear picture, rich projection content, and wide application scenarios at the same time. Aiming at the above-mentioned defects of the prior art, a replaceable superimposed optical path projection system is provided.
  • the technical solution adopted by the present invention to solve the technical problem is: to construct a replaceable superimposed optical path projection system, including a driving assembly; After the coherent light in the optical path is refracted by the diffraction component, it is superimposed with the incoherent light transmitted by the incoherent light path through the projection component to produce the effect of moving starry sky containing images; the projection component and the diffraction component are both The drive assembly is mechanically connected.
  • the incoherent optical path includes a first light source generator;
  • the projection assembly includes a projection sheet and a first lens arranged in sequence along the optical axis direction from the first light source generator to the image plane; the first lens refracting the incoherent light transmitted through the projection sheet to the image plane.
  • the coherent optical path includes a second light source generator;
  • the diffractive component includes a diffractive optical element and a second lens arranged in sequence along the optical axis direction from the second light source generator to the image plane; the coherent The light is superimposed with the incoherent light after being refracted by the diffractive optical element.
  • the projection assembly further includes a detachable grating disk; the projection sheet is arranged in the grating disk.
  • the drive assembly includes at least one drive motor and at least one set of transmission elements; the drive motor is mechanically connected to the grating disk and the diffractive optical element through the transmission elements.
  • the first light source generator is a light emitting diode; the second light source generator is a monochromatic laser emitter.
  • the first lens is a wide-angle lens.
  • the projection system further includes a control assembly; the control assembly includes a controller; the controller is electrically connected to the first light source generator, the second light source generator, and the drive motor, respectively.
  • control assembly also includes a power supply; the power supply is electrically connected to the controller.
  • control component also includes a communication module; the communication module includes an infrared sensing module, a wireless communication module and a voice module.
  • the beneficial effect of the present invention is that: by setting the detachable projection assembly, the corresponding projection can be replaced according to the projection effect customized by the user, so as to project a variety of different visual effects.
  • the incoherent light emitted by the incoherent light path is transmitted through the detachable projection component, and superimposed with the coherent light after the refraction and diffusion of the coherent light source through the diffraction component.
  • the mobile starry sky with user-customized image content has a clear picture and high brightness, and it can be used in a wide range of scenarios to meet the diversified needs of products.
  • FIG. 1 is an optical path diagram of a replaceable superimposed optical path projection system according to an embodiment of the present invention
  • Fig. 2 is a connection block diagram of a replaceable superimposed optical path projection system according to an embodiment of the present invention
  • Fig. 3 is a structural block diagram of a replaceable superimposed optical path projection system according to an embodiment of the present invention.
  • FIG. 4 is a structural block diagram of a replaceable superimposed optical path projection system according to another embodiment of the present invention.
  • the embodiment of the present invention provides a replaceable superimposed optical path projection system, including a drive assembly 5; also includes: a detachable projection assembly 1, a coherent optical path 2, an incoherent optical path 3 and a diffraction assembly 4 ;
  • the coherent light of the coherent light path 2 is refracted by the diffraction component 4, and superimposed with the incoherent light transmitted by the incoherent light path 3 through the projection component 1, so as to produce the effect of moving starry sky including images;
  • the projection component 1 and the diffraction component 4 are both connected with the drive component 5 mechanical connection.
  • the coherent light path 2 emits coherent light, and after being refracted inside the diffraction component 4, the light path is diffused into a wide angle and transmitted on the image plane.
  • the incoherent light path 3 emits incoherent light, and after being imaged by the projection component 1, it is projected to the image plane with a wide-angle optical path, so that it is superimposed with the coherent light diffused into a wide-angle, and combined with the drive of the drive component 5, a moving starry sky with customized image content is generated.
  • Visual effect
  • This application adopts the coherent light path 2 and the non-coherent light path 3 two projection light paths to superimpose, without affecting the aging of the projection film, a moving starry sky with user-customized image content can be produced, the picture is clear and bright, and the use scene is wide. And by setting the detachable projection assembly 1, the user can easily change the projection content, so that the projection system can project a variety of different visual effects to meet the needs of product diversification.
  • the incoherent optical path 3 includes a first light source generator 31; the first light source generator 31 is a light emitting diode; the projection assembly 1 includes sequentially arranged along the optical axis direction from the first light source generator 31 to the image plane The projection sheet 11 and the first lens 12 ; the first lens 12 refracts the incoherent light transmitted through the projection sheet 11 to the image plane.
  • the first lens 12 is a wide-angle lens.
  • the light-emitting diode emits light, which is the LED light source.
  • the light emitting diode, the projection film 11 and the first lens 12 are on the same optical axis.
  • the first lens 12 can change the light path, so that the light path generated by the light emitting diode is projected to the outside world (ie, the image plane) in a wide-angle form.
  • the coherent optical path 2 includes a second light source generator 21; the second light source generator 21 is a monochromatic laser emitter; the diffraction component 4 includes sequentially along the optical axis direction from the second light source generator 21 to the image plane
  • the diffractive optical element 41 and the second lens 42 are arranged; the coherent light is refracted by the diffractive optical element 41 and superimposed with the incoherent light.
  • the light emitted by the monochromatic laser transmitter is the LD light source.
  • Diffractive optical elements are essentially lenses with high light transmittance, which can refract parallel light beams inside the lens and spread the optical path to a wide angle.
  • the second lens 42 is an ordinary optical lens, which is mainly used for appearance modification and optical path protection.
  • the LED light source produced by the light-emitting diode is imaged through the projection film 11, and after changing the optical path by the first lens 12, the customized projection content is projected onto the image plane with a wide-angle optical path; the LD light source produced by the monochromatic laser emitter is passed through When the diffractive optical element 41 is refracted inside the diffractive optical element 41, its optical path is diffused, and after passing through the second lens 42, the wide-angle optical path is projected onto the image plane to produce a starry sky effect. The resulting light paths are superimposed, producing starry sky visuals with custom image content.
  • the picture is clear and bright, and it can be used in a wide range of scenarios.
  • the projection system can project a variety of different visual effects to meet the diversified needs of products.
  • the projection assembly 1 further includes a detachable grating disk 13 ; the projection film 11 is arranged in the grating disk 13 .
  • the grating disk 13 is provided with a rotating member fixed to the projection film 11.
  • the rotating member includes but is not limited to gears, pulleys, etc., which can drive the projection film 11 to rotate to produce the effect of starry sky rotation.
  • the driving assembly 5 includes a driving motor 51 and a set of transmission members 52 , and the transmission members 52 include but not limited to gears, belts and other transmission methods.
  • the transmission part 52 is mechanically connected with the grating disk 13 and the diffractive optical element 41 respectively, and the drive motor 51 drives the transmission part 52 to rotate, so that the projection film 11 and the diffractive optical element 41 move according to a point rule, producing the visual effect of starry sky movement.
  • the driving assembly 5 includes two driving motors 51 and two sets of transmission members 52 .
  • the projection film 11 and the diffractive optical element 41 are respectively provided with a driving motor 51 and a set of transmission elements 52 .
  • the driving motor 51 is mechanically connected to the rotating member on the grating disk 13 through the transmission member 52 , and the driving motor 51 drives the projection film 11 to rotate.
  • Another driving motor 51 drives the diffractive optical element 41 to rotate.
  • the projection film 11 and the diffractive optical element 41 are respectively rotated at a constant speed by the driving motor 51 to produce the effect of starry sky movement.
  • the projection system further includes a control assembly 6; the control assembly 6 includes a controller 61; the controller 61 is electrically connected to the first light source generator 31, the second light source generator 21 and the driving motor 51 respectively.
  • the controller 61 is used to control the operation of the first light source generator 31 , the second light source generator 21 and the driving motor 51 .
  • the periodic rotation of the grating disk 13 and the diffractive optical element 41 is further controlled to produce the effect of moving starry sky.
  • control assembly 6 further includes a power supply 62 ; the power supply 62 is electrically connected to the controller 61 .
  • the power supply 62 is used to provide power for the first light source generator 31 , the second light source generator 21 , the driving motor 51 and the controller 61 .
  • the power supply 62 can be set inside the projection system, and can also provide electric energy for the projection system through wiring and plugging in.
  • control component 6 further includes a communication module; the communication module includes an infrared sensing module, a wireless communication module and a voice module.
  • the communication module is used for performing auxiliary control functions on the projection system.
  • the infrared sensing module is used to realize remote control of the product through infrared sensing when the product is equipped with an external remote control.
  • the wireless communication module is a WIFI module, which is used to link the product with other intelligent electronic products, such intelligent electronic products include but not limited to mobile phones, computers, etc., to realize functions such as remote control of products or software upgrades.
  • the voice module is used for voice control of the product.

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

L'invention concerne un système de projection de trajet optique superposé remplaçable qui comprend un ensemble d'entraînement (5) et qui comprend également un ensemble de projection amovible (1), un trajet optique cohérent (2), un trajet optique incohérent (3) et un ensemble de diffraction (4). Après que la lumière cohérente du trajet optique cohérent (2) ait été réfractée par l'ensemble de diffraction (4), la lumière cohérente et la lumière incohérente du trajet optique incohérent (3) transmises par le module de projection (1) sont superposées pour générer un effet de ciel étoilé en mouvement comprenant une image ; l'ensemble de projection (1) et l'ensemble de diffraction (4) sont tous deux mécaniquement reliés à l'ensemble d'entraînement (5). En fournissant l'ensemble de projection amovible (1), une projection correspondante peut être remplacée en fonction d'un effet de projection qu'un utilisateur doit personnaliser, de façon à projeter une pluralité d'effets visuels différents.
PCT/CN2021/117717 2021-09-10 2021-09-10 Système de projection de trajet optique superposé remplaçable WO2023035230A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/117717 WO2023035230A1 (fr) 2021-09-10 2021-09-10 Système de projection de trajet optique superposé remplaçable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2021/117717 WO2023035230A1 (fr) 2021-09-10 2021-09-10 Système de projection de trajet optique superposé remplaçable

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WO2023035230A1 true WO2023035230A1 (fr) 2023-03-16

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PCT/CN2021/117717 WO2023035230A1 (fr) 2021-09-10 2021-09-10 Système de projection de trajet optique superposé remplaçable

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101276523A (zh) * 2006-06-21 2008-10-01 布利斯控股有限责任公司 星空投影
US20180067331A1 (en) * 2016-09-08 2018-03-08 Disney Enterprises, Inc. System for simulating pyrotechnics
CN109283690A (zh) * 2017-07-21 2019-01-29 陈德利 雷射投影装置
CN210835556U (zh) * 2019-03-29 2020-06-23 潘巧娃 一种投影装置
CN112728465A (zh) * 2021-02-04 2021-04-30 朗唯思科技(深圳)有限公司 一种星空投影灯及其星云生成方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101276523A (zh) * 2006-06-21 2008-10-01 布利斯控股有限责任公司 星空投影
US20180067331A1 (en) * 2016-09-08 2018-03-08 Disney Enterprises, Inc. System for simulating pyrotechnics
CN109283690A (zh) * 2017-07-21 2019-01-29 陈德利 雷射投影装置
CN210835556U (zh) * 2019-03-29 2020-06-23 潘巧娃 一种投影装置
CN112728465A (zh) * 2021-02-04 2021-04-30 朗唯思科技(深圳)有限公司 一种星空投影灯及其星云生成方法

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