CN113759651A - Replaceable type superposition light path projection system - Google Patents
Replaceable type superposition light path projection system Download PDFInfo
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- CN113759651A CN113759651A CN202111062433.6A CN202111062433A CN113759651A CN 113759651 A CN113759651 A CN 113759651A CN 202111062433 A CN202111062433 A CN 202111062433A CN 113759651 A CN113759651 A CN 113759651A
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- light path
- projection
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- projection system
- light
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- 230000001427 coherent effect Effects 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 12
- 230000003287 optical effect Effects 0.000 claims description 38
- 230000005540 biological transmission Effects 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 11
- 230000006698 induction Effects 0.000 claims description 5
- 238000000034 method Methods 0.000 claims 1
- 230000000007 visual effect Effects 0.000 abstract description 6
- 230000032683 aging Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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Classifications
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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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
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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
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2013—Plural light sources
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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
- G03B21/20—Lamp housings
- G03B21/206—Control of light source other than position or intensity
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- 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]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
Abstract
The invention relates to a replaceable superposed light path projection system, which comprises a driving component; further comprising: the device comprises a detachable projection component, a coherent light path, an incoherent light path and a diffraction component; after the coherent light of the coherent light path is refracted by the diffraction component, the incoherent light transmitted by the incoherent light path through the projection component is superposed to generate a moving starry sky effect containing an image; the projection component and the diffraction component are both mechanically connected with the driving component. Through setting up detachable projection subassembly, can change corresponding projection according to the projection effect that user's needs customized to the projection goes out multiple different visual effect. The incoherent light and the coherent light are overlapped, and the mechanical drive of the drive assembly is combined, so that the mobile starry sky with the customized image content can be generated on the premise of not influencing the aging of the slide, the picture is clear and high in brightness, the use scene is wide, and the diversified requirements of products are met.
Description
Technical Field
The invention relates to the technical field of medical instruments, in particular to a replaceable superposed light path projection system.
Background
A projector, also called a projector, is widely used in places such as homes, offices, schools, and the like, and is a device capable of projecting images or videos onto a curtain. Projectors may be classified into types such as CRT projectors, LCD projectors, DLP projectors, LCOS projectors, and the like according to their operation modes.
With the continuous development of projector technology, clear picture, rich projection content and wide use scene become the main indexes of the projector. Although some projectors are internally provided with replaceable slides to meet the index of replacing different projection contents, due to the aging and fading problems of the slides, weak light is generally required to penetrate through the slides, the projection effect can only be presented in dark environments, and the use scene is limited. How to make the projector satisfy the above-mentioned main criteria at the same time has been troubling designers.
Patent document 1 (chinese patent CN101276523B) discloses a starry sky projection device, which uses at least one incoherent light source and a coherent light source to perform optical path superposition, thereby generating moving starry sky and cloud-like effects. Although the projection device has clear picture and high brightness, the projection device has single projection presentation effect, cannot replace projection content, and cannot meet diversified requirements of users.
In summary, the existing projector cannot simultaneously achieve indexes such as clear picture, rich projection content, wide use scene and the like, so that the use scene of the projector is limited, the impression experience is poor, and diversified requirements of users cannot be met.
Disclosure of Invention
The present invention provides a replaceable superposed light path projection system, which aims at solving the technical problems that the existing projector can not simultaneously realize indexes of clear picture, rich projection content, wide use scene, etc., and the present invention provides a replaceable superposed light path projection system.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a replaceable superposed light path projection system, which comprises a driving component; further comprising: the device comprises a detachable projection component, a coherent light path, an incoherent light path and a diffraction component; after being refracted by the diffraction component, the coherent light of the coherent light path is superposed with the incoherent light of the incoherent light path transmitted by the projection component to generate a moving starry sky effect containing an image; the projection component and the diffraction component are both mechanically connected with the driving component.
Further, the incoherent light path includes a first light source generator; the projection assembly comprises a projection film and a first lens which are sequentially arranged from the first light source generator to the image plane along the direction of an optical axis; the first lens refracts the incoherent light transmitted through the slide to the image plane.
Further, the coherent optical path includes a second light source generator; the diffraction assembly comprises a diffraction optical element and a second lens which are sequentially arranged from the second light source generator to the image plane along the optical axis direction; the coherent light is refracted by the diffractive optical element and then is superposed with the incoherent light.
Further, the projection assembly further comprises a detachable grating disk; the slide is disposed in the grating disk.
Further, the drive assembly comprises at least one drive motor, and at least one set of transmission members; the driving motor is mechanically connected with the grating disk and the diffractive optical element through the transmission piece respectively.
Further, the first light source generator is a light emitting diode; the second light source generator is a monochromatic laser emitter.
Further, the first lens is a wide-angle lens.
Further, the projection system further comprises a control assembly; the control assembly includes a controller; the controller is respectively electrically connected with the first light source generator, the second light source generator and the driving motor.
Further, the control assembly further comprises a power supply; the power supply is electrically connected with the controller.
Further, the control assembly further comprises a communication module; the communication module comprises an infrared induction module, a wireless communication module and a voice module.
The invention has the beneficial effects that: through setting up detachable projection subassembly, can change corresponding projection according to the projection effect that user's needs customized to the projection goes out multiple different visual effect. The incoherent light that incoherent light path jetted out passes through detachable projection subassembly transmission, superposes with coherent light source after the refraction diffusion of diffraction subassembly, combines drive assembly's mechanical drive, can produce the removal starry sky that has user's customized image content under the prerequisite that does not influence the slide ageing, and the picture is clear and luminance is high, and the use scene is wide, satisfies the product pluralism demand.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only part of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the accompanying drawings:
FIG. 1 is a diagram of an optical path of a replaceable overlay optical path projection system according to an embodiment of the present invention;
FIG. 2 is a block diagram of a replaceable overlay optical path projection system according to an embodiment of the present invention;
FIG. 3 is a block diagram of a replaceable overlay optical path projection system according to an embodiment of the present invention;
fig. 4 is a block diagram of a replaceable overlay optical path projection system according to another embodiment of the present invention.
In the figure, 1, a projection assembly; 2. a coherent light path; 3. an incoherent light path; 4. a diffractive component; 5. a drive assembly; 6. a control component; 11. a slide; 12. a first lens; 13. a grating disk; 21. a second light source generator; 31. a first light source generator; 41. a diffractive optical element; 42. a second lens; 51. a drive motor; 52. a transmission member; 61. a controller; 62. a power source.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention, and it is obvious that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without inventive step, are within the scope of the present invention.
Embodiments of the present invention are shown in fig. 1 to 2, and provide a replaceable superimposed optical path projection system, which includes a driving assembly 5; further comprising: the device comprises a detachable projection component 1, a coherent light path 2, an incoherent light path 3 and a diffraction component 4; after the coherent light of the coherent light path 2 is refracted by the diffraction component 4, the incoherent light transmitted by the projection component 1 through the incoherent light path 3 is superposed to generate a moving starry sky effect containing an image; the projection module 1 and the diffraction module 4 are mechanically connected to a driving module 5.
The coherent light path 2 emits coherent light, and after the coherent light is refracted inside the diffraction component 4, the light path is diffused to a wide angle and is transmitted on an image surface. The incoherent light path 3 emits incoherent light, the incoherent light is imaged by the projection component 1 and then is projected to an image surface by a wide-angle light path, so that the incoherent light is superposed with coherent light diffused to a wide angle, and the driving of the driving component 5 is combined to generate the visual effect of a moving star with customized image content.
This application is through adopting two projection light paths of coherent light path 2 and incoherent light path 3 to superpose, can produce the removal starry sky that has user's customization image content under the prerequisite that does not influence the slide aging, and the picture is clear and luminance is high, and the use scene is wide to through setting up detachable projection subassembly 1, the user can conveniently change the projection content, makes projection system can project out multiple different visual effect, satisfies the diversified demand of product.
In one embodiment, the incoherent light path 3 comprises a first light source generator 31; the first light source generator 31 is a light emitting diode; the projection assembly 1 comprises a slide 11 and a first lens 12 which are sequentially arranged along the optical axis direction from a first light source generator 31 to an image plane; the first lens 12 refracts the incoherent light transmitted through the slide 11 to an image plane. The first lens 12 is a wide-angle lens.
The light emitted by the light emitting diode is the LED light source. The light emitting diode, the slide 11 and the first lens 12 are on the same optical axis. The first lens 12 can change the optical path so that the optical path generated by the light emitting diode is projected to the outside (i.e., image plane) in a wide-angle manner.
In one embodiment, the coherent light path 2 comprises a second light source generator 21; the second light source generator 21 is a monochromatic laser emitter; the diffraction element 4 includes a diffractive optical element 41 and a second lens 42 arranged in order in the optical axis direction from the second light source generator 21 to the image plane; the coherent light is refracted by the diffractive optical element 41 and then superimposed on the incoherent light.
The light emitted by the monochromatic laser emitter is the LD light source. The diffraction optical element is essentially a lens with high light transmittance, and can refract parallel light beams in the lens so that the light path of the lens is diffused to be wide-angle. The second lens 42 is a common optical lens, and is mainly used for appearance modification and optical path protection.
In the above embodiment, the LED light source generated by the LED forms an image through the projection sheet 11, and after the light path is changed by the first lens 12, the customized projection content is projected to the image plane through the wide-angle light path; the LD light source generated by the monochromatic laser emitter is refracted inside the diffractive optical element 41 when passing through the diffractive optical element 41, so that the light path thereof is diffused, and the LD light source is projected to the image plane through the second lens 42 in a wide-angle light path to generate a starry sky effect. The image is clear and high in brightness, the using scene is wide, the projection system can project various visual effects, and diversified requirements of products are met.
In a further embodiment, the projection assembly 1 further comprises a detachable grating disk 13; the slide 11 is disposed in a grating disk 13. The grating disk 13 is provided therein with a rotating member fixed to the slide 11, and the rotating member includes but is not limited to a gear, a pulley, etc. and can drive the slide 11 to rotate, thereby generating a star rotation effect.
In one embodiment, as shown in fig. 3, the driving assembly 5 includes a driving motor 51 and a set of transmission members 52, and the transmission members 52 include, but are not limited to, gears, belts, etc. The transmission member 52 is mechanically connected to the grating disk 13 and the diffractive optical element 41, and the driving motor 51 drives the transmission member 52 to rotate, so that the projection sheet 11 and the diffractive optical element 41 move in a regular manner at one point, and a starry-sky movement visual effect is generated.
In another embodiment, as shown in fig. 4, the driving assembly 5 comprises two driving motors 51 and two sets of transmission members 52. The slide 11 and the diffractive optical element 41 are respectively provided with a driving motor 51 and a set of transmission members 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 slide 11 to rotate. Another driving motor 51 rotates the diffractive optical element 41. The slide 11 and the diffractive optical element 41 are respectively rotated at a constant speed by the driving motor 51 to generate a starry sky moving effect.
In a further embodiment, the projection system further comprises 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 operations of the first light source generator 31, the second light source generator 21, and the driving motor 51. The rotation rate of the driving motor 51 is controlled, so that the grating disk 13 and the diffractive optical element 41 are controlled to rotate periodically to generate a moving star field effect.
In a further embodiment, the control assembly 6 further comprises a power source 62; the power source 62 is electrically connected to the controller 61. The power source 62 is used to power the first light source generator 31, the second light source generator 21, the driving motor 51, and the controller 61. The power source 62 may be disposed inside the projection system, or may be connected to the projection system by a wire.
In a further embodiment, the control assembly 6 further comprises a communication module; the communication module comprises an infrared induction module, a wireless communication module and a voice module. The communication module is used for performing an auxiliary control function on the projection system.
Wherein, the infrared induction module is used for when the product is equipped with external remote controller, can realize the remote control to the product through infrared induction. Wireless communication module is the WIFI module for link the product with other intelligent electronic product, this type of intelligent electronic product includes but not limited to cell-phone, computer etc. and the realization is to functions such as remote control or software upgrading of product. The voice module is used for carrying out voice control on the product.
It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are intended to be included within the scope of the invention as defined in the appended claims.
Claims (10)
1. A replaceable superposed light path projection system comprises a driving component; the method is characterized in that: further comprising: the device comprises a detachable projection component, a coherent light path, an incoherent light path and a diffraction component; after being refracted by the diffraction component, the coherent light of the coherent light path is superposed with the incoherent light of the incoherent light path transmitted by the projection component to generate a moving starry sky effect containing an image; the projection component and the diffraction component are both mechanically connected with the driving component.
2. The replaceable overlay light path projection system of claim 1 wherein the incoherent light path comprises a first light source generator; the projection assembly comprises a projection film and a first lens which are sequentially arranged from the first light source generator to the image plane along the direction of an optical axis; the first lens refracts the incoherent light transmitted through the slide to the image plane.
3. The replaceable overlay light path projection system of claim 2 wherein the coherent light path comprises a second light source generator; the diffraction assembly comprises a diffraction optical element and a second lens which are sequentially arranged from the second light source generator to the image plane along the optical axis direction; the coherent light is refracted by the diffractive optical element and then is superposed with the incoherent light.
4. The replaceable overlay light path projection system of claim 3 wherein the projection assembly further comprises a removable grating disk; the slide is disposed in the grating disk.
5. The replaceable overlay light path projection system of claim 4 wherein the drive assembly comprises at least one drive motor, and at least one set of transmission members; the driving motor is mechanically connected with the grating disk and the diffractive optical element through the transmission piece respectively.
6. The replaceable overlay light path projection system of claim 3 wherein the first light source generator is a light emitting diode; the second light source generator is a monochromatic laser emitter.
7. The replaceable overlay optical path projection system of claim 2 wherein the first lens is a wide angle lens.
8. The replaceable overlay light path projection system of claim 5 further comprising a control component; the control assembly includes a controller; the controller is respectively electrically connected with the first light source generator, the second light source generator and the driving motor.
9. The replaceable overlay light path projection system of claim 8 wherein the control component further comprises a power supply; the power supply is electrically connected with the controller.
10. The replaceable overlay light path projection system of claim 8 wherein the control component further comprises a communication module; the communication module comprises an infrared induction module, a wireless communication module and a voice module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062433.6A CN113759651A (en) | 2021-09-10 | 2021-09-10 | Replaceable type superposition light path projection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111062433.6A CN113759651A (en) | 2021-09-10 | 2021-09-10 | Replaceable type superposition light path projection system |
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| CN113759651A true CN113759651A (en) | 2021-12-07 |
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| CN202111062433.6A Pending CN113759651A (en) | 2021-09-10 | 2021-09-10 | Replaceable type superposition light path projection system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137951A1 (en) * | 2022-01-19 | 2023-07-27 | 中山博浪电子科技有限公司 | Atmosphere image projection apparatus |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070296922A1 (en) * | 2006-06-21 | 2007-12-27 | Alan Lee | Star Field Projection Apparatus |
| CN202383410U (en) * | 2011-08-05 | 2012-08-15 | 朱沛伦 | Image projection lamp |
| CN110805861A (en) * | 2019-11-11 | 2020-02-18 | 怡高企业（中山）有限公司 | Starry sky projection lamp |
| CN111379989A (en) * | 2019-11-29 | 2020-07-07 | 浙江凯耀照明有限责任公司 | Rotary projection desk lamp |
-
2021
- 2021-09-10 CN CN202111062433.6A patent/CN113759651A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070296922A1 (en) * | 2006-06-21 | 2007-12-27 | Alan Lee | Star Field Projection Apparatus |
| CN202383410U (en) * | 2011-08-05 | 2012-08-15 | 朱沛伦 | Image projection lamp |
| CN110805861A (en) * | 2019-11-11 | 2020-02-18 | 怡高企业（中山）有限公司 | Starry sky projection lamp |
| CN111379989A (en) * | 2019-11-29 | 2020-07-07 | 浙江凯耀照明有限责任公司 | Rotary projection desk lamp |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023137951A1 (en) * | 2022-01-19 | 2023-07-27 | 中山博浪电子科技有限公司 | Atmosphere image projection apparatus |
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Application publication date: 20211207 |