CN113625521A - Black and white projector - Google Patents
Black and white projector Download PDFInfo
- Publication number
- CN113625521A CN113625521A CN202110940975.2A CN202110940975A CN113625521A CN 113625521 A CN113625521 A CN 113625521A CN 202110940975 A CN202110940975 A CN 202110940975A CN 113625521 A CN113625521 A CN 113625521A
- Authority
- CN
- China
- Prior art keywords
- led lamp
- white led
- grating chip
- warm white
- light
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000005611 electricity Effects 0.000 claims description 9
- 239000004973 liquid crystal related substance Substances 0.000 claims description 8
- 208000003464 asthenopia Diseases 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 230000006378 damage Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 239000003086 colorant Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010014357 Electric shock Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 208000001491 myopia Diseases 0.000 description 1
- 230000004379 myopia Effects 0.000 description 1
Images
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
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a black-white projector, which belongs to the field of projectors and comprises a warm white LED lamp, wherein a light-gathering cover is arranged on one side of the warm white LED lamp, a light-gathering lens is arranged on the other side of the warm white LED lamp, a grating chip is arranged on one side of the light-gathering lens, which is far away from the warm white LED lamp, a projection lens group is arranged on one side of the grating chip, which is far away from the light-gathering lens, a curtain is arranged on one side of the projection lens group, which is far away from the grating chip, the grating chip is electrically connected with an image controller, the image controller is electrically connected with a WiFi module, and the warm white LED lamp, the image controller and the WiFi module are electrically connected with a rechargeable battery. The natural light generated by the projector cannot cause damage to the eyes of children and is not easy to cause visual fatigue; a rechargeable battery is used as a power supply, so that electric shock risks and use limitation are avoided; when in use, the risk caused by high heat of the color projector can be avoided; the generated pure black and white image has wide application prospect in the field of children education, and is more beneficial to the intelligence development of children.
Description
Technical Field
The invention relates to the technical field of projectors, in particular to a black and white projector.
Background
Since the service objects of projectors in the market are adults and the used scenes are home entertainment or office work, the projectors in the market technically pursue indexes such as high resolution, high brightness, high contrast, high scanning frequency, high color reproducibility and the like, so that the product cost is higher and higher, the power consumption is higher and higher, and the technical trend of the products is greatly against the growth demand of children which are special audience groups.
On one hand, the high-brightness LED lamp light is easy to cause visual fatigue and myopia of children; on the other hand, more vivid color video contents are more unfavorable for and even damaging the intelligence development of children; worse still, the high power consumption of color projectors makes their products locally very hot, creating a potential hazard to children.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a black-and-white projector.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a black and white projecting apparatus, includes warm white LED lamp, one side of warm white LED lamp is equipped with the snoot, the opposite side of warm white LED lamp is equipped with condensing lens, one side that condensing lens kept away from warm white LED lamp is equipped with the grating chip, one side that condensing lens was kept away from to the grating chip is equipped with the projection lens group, one side that the grating chip was kept away from to the projection lens group is equipped with the curtain, the grating chip is connected with the image controller electricity, the image controller is connected with the wiFi module electricity, warm white LED lamp, image controller, wiFi module all are connected with the rechargeable battery electricity.
Further, the grating chip is an LCD liquid crystal light-transmitting grating chip.
Further, the grating chip is a DLP reflective grating chip.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the warm white LED lamp is used as a light source, and the generated natural light can not cause damage to the eyes of children and is not easy to cause visual fatigue;
2. the invention uses the rechargeable battery as the power supply, thus avoiding the electric shock risk and the use limitation caused by the connection of a power line with a common projector;
3. the heating value can be ignored in the using process, and the risk caused by high heating of the color projector can be avoided;
4. the pure black and white image generated by the method has wide application prospect in the field of children education, and is more beneficial to the intelligence development of children;
drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention.
Fig. 1 is a schematic view of an overall structure of a black-and-white projector according to the present invention.
In the figure: 1 snoot, 2 warm white LED lamps, 3 condensing lens, 4 grating chips, 5 projection lens groups, 6 curtains, 7 image controllers, 8WiFi modules and 9 rechargeable batteries.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1, a black and white projector includes a warm white LED lamp 2, a light-gathering cover 1 is disposed on one side of the warm white LED lamp 2, a light-gathering lens 3 is disposed on the other side of the warm white LED lamp 2, and a grating chip 4 is disposed on one side of the light-gathering lens 3 away from the warm white LED lamp 2, in this embodiment, the grating chip 4 is an LCD liquid crystal transmissive grating chip. One side that condenser lens 3 was kept away from to grating chip 4 is equipped with projection lens group 5, and one side that grating chip 4 was kept away from to projection lens group 5 is equipped with curtain 6, and grating chip 4 is connected with image controller 7 electricity, and image controller 7 is connected with wiFi module 8 electricity, and warm white LED lamp 2, image controller 7, wiFi module 8 all are connected with rechargeable battery 9 electricity. The color temperature of the warm white LED lamp 2 is 3000K. The blue light that its light source of colour temperature 3000K of warm white LED lamp 2 contains is far less than the blue light that other light sources contain, including sunlight and incandescent lamp light, and its ultraviolet ray that does not contain sunlight and incandescent lamp contain can effectually avoid the injury to eyes and the visual fatigue who produces.
The working principle and the using process of the invention are as follows:
light generated by the warm white LED lamp 2 forms parallel light through the condenser lens 3, the parallel light irradiates a light-transmitting type grating chip of the LCD liquid crystal, the image controller 7 controls the light-transmitting strength of each liquid crystal unit on the LCD liquid crystal light-transmitting type grating chip according to playing video content, and the light passing through the LCD liquid crystal light-transmitting type grating chip projects an image onto the curtain 6 through the projection lens group 5. All video content is uploaded from the network through the WiFi module 8 and the product is powered by the rechargeable battery 9.
The invention is specially designed for playing pure black and white video contents, and can not play color video contents.
The structure is simpler than that of a color projector. The color projector needs to use a color wheel to decompose a white light source into three primary colors of red, yellow and blue, then is matched with three groups of spectroscopes and three groups of LCD grating chips, and finally uses a group of prisms to integrate the three colors into a whole. The invention can save a color wheel, three groups of spectroscopes, two groups of LCD grating chips and one group of prisms because the invention plays pure black and white content.
Warm white LED lamps were used as light sources. Because the pure black and white content is played, the requirement on the brightness of the light source is low, so that a natural light source generated by a warm white LED lamp can be adopted, the eyes of the children are not damaged, and the visual fatigue is not easy to occur.
And only a rechargeable battery is used as a power supply, so that the use safety of children is ensured.
In other embodiments, the grating chip 4 may also adopt a DLP reflective grating chip; DLP reflective grating chips are used for replacing LCD liquid crystal light-transmitting grating chips, and meanwhile, the light source placing position of the warm white LED lamp 2 is correspondingly adjusted.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. The utility model provides a black and white projecting apparatus, includes warm white LED lamp (2), its characterized in that, one side of warm white LED lamp (2) is equipped with snoot (1), the opposite side of warm white LED lamp (2) is equipped with collector lens (3), one side that warm white LED lamp (2) were kept away from in collector lens (3) is equipped with grating chip (4), one side that collector lens (3) were kept away from in grating chip (4) is equipped with projection lens group (5), one side that grating chip (4) were kept away from in projection lens group (5) is equipped with curtain (6), grating chip (4) are connected with image controller (7) electricity, image controller (7) are connected with wiFi module (8) electricity, warm white LED lamp (2), image controller (7), wiFi module (8) all are connected with rechargeable battery (9) electricity.
2. A black-and-white projector according to claim 1, characterized in that the grating chip (4) is an LCD liquid crystal transmissive grating chip.
3. A black-and-white projector according to claim 1, characterized in that the grating chip (4) is a DLP reflective grating chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110940975.2A CN113625521A (en) | 2021-08-17 | 2021-08-17 | Black and white projector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110940975.2A CN113625521A (en) | 2021-08-17 | 2021-08-17 | Black and white projector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113625521A true CN113625521A (en) | 2021-11-09 |
Family
ID=78385933
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110940975.2A Pending CN113625521A (en) | 2021-08-17 | 2021-08-17 | Black and white projector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113625521A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226074Y (en) * | 2008-06-12 | 2009-04-22 | 上海九山电子科技有限公司 | Button type monocolor liquid crystal projector |
| CN202486462U (en) * | 2012-03-26 | 2012-10-10 | 北京京东方光电科技有限公司 | Liquid crystal grating and display unit using the same |
| CN107196990A (en) * | 2017-04-06 | 2017-09-22 | 罗问清 | A kind of intelligent children's black and white projecting apparatus of cloud |
| CN107229174A (en) * | 2017-07-14 | 2017-10-03 | 桂林电子科技大学 | A kind of Healthy Lighting method of mobile phone projection lamp |
-
2021
- 2021-08-17 CN CN202110940975.2A patent/CN113625521A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201226074Y (en) * | 2008-06-12 | 2009-04-22 | 上海九山电子科技有限公司 | Button type monocolor liquid crystal projector |
| CN202486462U (en) * | 2012-03-26 | 2012-10-10 | 北京京东方光电科技有限公司 | Liquid crystal grating and display unit using the same |
| CN107196990A (en) * | 2017-04-06 | 2017-09-22 | 罗问清 | A kind of intelligent children's black and white projecting apparatus of cloud |
| CN107229174A (en) * | 2017-07-14 | 2017-10-03 | 桂林电子科技大学 | A kind of Healthy Lighting method of mobile phone projection lamp |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20211109 |