CN217787588U - Two formula projection systems of chronogenesis - Google Patents
Two formula projection systems of chronogenesis Download PDFInfo
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- CN217787588U CN217787588U CN202221879361.4U CN202221879361U CN217787588U CN 217787588 U CN217787588 U CN 217787588U CN 202221879361 U CN202221879361 U CN 202221879361U CN 217787588 U CN217787588 U CN 217787588U
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- 230000010287 polarization Effects 0.000 claims abstract description 24
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052753 mercury Inorganic materials 0.000 claims abstract description 12
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000003086 colorant Substances 0.000 claims description 2
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000002834 transmittance Methods 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model discloses a two formula projection systems of chronogenesis, include: the high-pressure mercury lamp, the spectroscope, the light-combining mirror and the lens; the first reflecting mirror is positioned on a first light path between the spectroscope and the light combining mirror, the first reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a first incident condenser, a first fly-eye lens, a first polarization converter and a first emergent condenser are sequentially arranged between the spectroscope and the first reflecting mirror, and a first LCD module is arranged between the first reflecting mirror and the light combining mirror; and the second reflecting mirror is positioned on a second optical path between the spectroscope and the light combining mirror, the second reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a color wheel, a second incident condenser lens, a second fly-eye lens, a second polarization converter and a second emergent condenser lens are sequentially arranged between the spectroscope and the second reflecting mirror, and a second LCD module is arranged between the second reflecting mirror and the light combining mirror. The utility model discloses can promote LCD projector's light transmissivity and utilization ratio, promote LCD's life.
Description
Technical Field
The utility model relates to a LCD projector technical field, in particular to chronogenesis two formula projection system.
Background
The existing single LCD projector adopts a full-color LCD, the transmittance is low, the color saturation is poor, an LED and reflection type light hopper mode is used on a light source, the utilization rate of the light source is low, and the peripheral light quantity is poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a chronogenesis two formula projection system, aims at promoting the light transmissivity and the utilization ratio of LCD projector, promotes LCD's life.
In order to achieve the above object, the present invention provides a time sequence two-piece projection system, including: the high-pressure mercury lamp, the spectroscope, the light-combining mirror and the lens are arranged at 45 degrees, and the light-combining mirror and the lens are arranged at 45 degrees;
the time sequence two-piece type projection system also comprises a first reflecting mirror positioned on a first light path between the spectroscope and the light combining mirror, the first reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a first incident condenser lens, a first fly-eye lens, a first polarization converter and a first emergent condenser lens are sequentially arranged between the spectroscope and the first reflecting mirror, and a first LCD module is arranged between the first reflecting mirror and the light combining mirror;
the time sequence two-piece type projection system also comprises a second reflecting mirror positioned on a second light path between the spectroscope and the light-combining mirror, the second reflecting mirror is arranged in parallel with the spectroscope and the light-combining mirror, a color wheel, a second incident condenser lens, a second fly-eye lens, a second polarization converter and a second emergent condenser lens are sequentially arranged between the spectroscope and the second reflecting mirror, and a second LCD module is arranged between the second reflecting mirror and the light-combining mirror;
the high-pressure mercury lamp emits white convergent light, the white convergent light passes through the beam splitter and then reflects blue light, the yellow light penetrates through the color wheel and is converted into red light and green light which are alternately converted, the red light and the green light are converted into parallel light after passing through the second incident condenser lens, the parallel light is converted into polarized light after passing through the second fly eye lens and the second polarization converter and irradiates the polarized light on the second LCD module, the second LCD module alternately displays input red and green signals, and the signal alternate and incident light colors are synchronous; the blue light is changed into parallel light after passing through the first incident condenser lens, is changed into polarized light after passing through the first fly-eye lens and the first polarization converter, and is irradiated onto the first LCD module, the first LCD module displays an input blue signal, and light rays passing through the first LCD module and the second LCD module are combined by the light combining lens and then are imaged on a screen by the lens.
The utility model discloses a further technical scheme is, first LCD module and second LCD module adopt black and white LCD.
The utility model discloses two formula projection system of chronogenesis's beneficial effect is: the utility model discloses an above-mentioned technical scheme, include: the high-pressure mercury lamp, the spectroscope, the light-combining mirror and the lens are arranged at 45 degrees, and the light-combining mirror and the lens are arranged at 45 degrees; the time sequence two-piece type projection system also comprises a first reflecting mirror positioned on a first light path between the spectroscope and the light combining mirror, the first reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a first incident condenser lens, a first fly-eye lens, a first polarization converter and a first emergent condenser lens are sequentially arranged between the spectroscope and the first reflecting mirror, and a first LCD module is arranged between the first reflecting mirror and the light combining mirror; time sequence two formula projection system is still including being located the spectroscope with close the second mirror on the second light path between the light mirror, the second mirror with spectroscope, close light mirror parallel arrangement, the spectroscope with set gradually colour wheel, second incident condensing lens, second fly-eye lens, second polarisation converter and second outgoing condensing lens between the second mirror, the second mirror with close and be provided with the second LCD module between the light mirror, can promote LCD projector's light transmissivity and utilization ratio, promote LCD's life.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a schematic diagram of a preferred embodiment of the timing two-piece projection system of the present invention.
The reference numbers indicate:
| reference numerals | Name (R) | Reference numerals | Name(s) |
| 1 | High |
10 | The first LCD module |
| 2 | Spectroscope | 11 | Second reflecting mirror |
| 3 | Light-combined mirror | 12 | Color wheel |
| 4 | |
13 | |
| 5 | |
14 | Second fly-eye lens |
| 6 | |
15 | Second polarization converter |
| 7 | First fly- |
16 | Second |
| 8 | |
17 | Second LCD module |
| 9 | First emergent condenser |
The realization, the functional characteristics and the advantages of the utility model are further explained by combining the embodiment and referring to the attached drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, 8230; \8230;) are provided in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the attached drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B", including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Consider that present single LCD projector all adopts full-color LCD, and the luminousness is lower, and the color saturation is relatively poor, uses LED on the light source to add the mode of reflection formula light fill, and the light source low-usage, peripheral light volume is relatively poor, in order to solve the problem that single LCD luminance is low, the utility model discloses chronogenesis two formula projection system adopts black and white LCD, improves its transmissivity, adopts the mode of high pressure mercury lamp and colour wheel to improve the color saturation on the light source to reduce LCD's temperature, improve life, use compound eye lens in the aspect of the samming and come the utilization ratio of samming and improvement light with polarization converter.
Specifically, please refer to fig. 1, the utility model provides a two formula projection system of chronogenesis, the utility model discloses two formula projection system of chronogenesis preferred embodiment include high-pressure mercury lamp 1, spectroscope 2, close speculum 3 and camera lens 4, spectroscope 2 with high-pressure mercury lamp 1 is 45 degrees and arranges, close speculum 3 with be 45 degrees between the camera lens 4 and arrange.
Wherein, two formula projection system of chronogenesis still including being located spectroscope 2 with close first speculum 5 on the first light path between the spectroscope 3, first speculum 5 with spectroscope 2, close the parallel arrangement of spectroscope 3, spectroscope 2 with set gradually first incidence condensing lens 6, first fly's eye lens 7, first polarisation converter 8 and first exit condensing lens 9 between the first speculum 5, first speculum 5 with be provided with first LCD module 10 between the light-combining mirror 3.
Time sequence two-piece formula projection system still includes to be located spectroscope 2 with close the second reflection mirror 11 on the second light path between the light mirror 3, second reflection mirror 11 with spectroscope 2, close light mirror 3 parallel arrangement, spectroscope 2 with color wheel 12, second incident condensing lens 13, second fly's eye lens 14, second polarisation converter 15 and second exit condensing lens 16 have set gradually between the second reflection mirror 11, second reflection mirror 11 with it is provided with second LCD module 17 to close between the light mirror 3.
The high-pressure mercury lamp 1 emits white convergent light, the white convergent light passes through the spectroscope 2 and then reflects blue light, the yellow light passes through a yellow light, the yellow light is changed into light with red and green alternating conversion through the color wheel 12, the light passes through the second incidence condenser 13 and then becomes parallel light, the parallel light passes through the second fly eye lens 14 and the second polarization converter 15 and then becomes polarized light (the polarization direction is the same as the incidence direction of a polarizing plate), the polarized light irradiates the second LCD module 17, the second LCD module 17 alternately displays input red and green signals, and the signal alternating and the incident light color are synchronous; the blue light is changed into parallel light after passing through the first incident condenser 6, is changed into polarized light (the polarization direction is the same as the polarization plate incidence) after passing through the first fly-eye lens 7 and the first polarization converter 8, and is irradiated on the first LCD module 10, the first LCD module 10 displays an input blue signal, and after light rays passing through the first LCD module 10 and the second LCD module 17 are combined by the light combining lens 3, the blue light is imaged on a screen by the lens 4.
In this embodiment, the first LCD module 10 and the second LCD module 17 adopt high-refresh black-and-white LCDs, and compared with the prior art, a CF layer of a color LCD is omitted, so that the light transmittance can be greatly improved.
In this embodiment, the first fly-eye lens 7 and the second fly-eye lens 14 are used for light equalization, the first fly-eye lens 7 and the second fly-eye lens 14 divide light of a light source into a plurality of small blocks, and each small block corresponds to the whole of the LCD, so that a good light equalization effect can be achieved.
In this embodiment, considering that in the single LCD projection in the prior art, the light emitted from the light source is unpolarized light, and half of the light intensity is blocked after passing through the polarizer (incident light), therefore, the first polarization converter 8 and the second polarization converter 15 are adopted in this embodiment to improve the light utilization rate: the unpolarized light emitted from the light source passes through the first polarization converter 8 and the second polarization converter 15 and becomes polarized light, and the light intensity is not lost after passing through the polarizing plate (incidence).
In this embodiment, the color wheel 12 is used to adjust the color, and the color conversion speed on the color wheel 12 is the same as the refresh speed of the LCD, so as to achieve a good color saturation.
In addition, in the embodiment, the blue light and the red light are imaged respectively, so that the temperature of the LCD can be reduced, and the service life is prolonged.
The utility model discloses two formula projection system of chronogenesis's beneficial effect is: the utility model discloses an above-mentioned technical scheme, include: the high-pressure mercury lamp, the spectroscope, the light-combining mirror and the lens are arranged at 45 degrees, and the light-combining mirror and the lens are arranged at 45 degrees; the time sequence two-piece type projection system also comprises a first reflecting mirror positioned on a first light path between the spectroscope and the light combining mirror, the first reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a first incident condenser lens, a first fly-eye lens, a first polarization converter and a first emergent condenser lens are sequentially arranged between the spectroscope and the first reflecting mirror, and a first LCD module is arranged between the first reflecting mirror and the light combining mirror; time sequence two formula projection system is still including being located the spectroscope with close the second mirror on the second light path between the light mirror, the second mirror with the spectroscope, close light mirror parallel arrangement, the spectroscope with colour wheel, second incident condensing lens, second compound eye lens, second polarisation converter and second outgoing condensing lens have set gradually between the second mirror, the second mirror with be provided with the second LCD module between the light mirror, can promote the light transmissivity and the utilization ratio of LCD projector, promote LCD's life.
The above only is the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all under the concept of the present invention, the equivalent structure transformation made by the contents of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (2)
1. A time sequential two-piece projection system, comprising: the high-pressure mercury lamp, the spectroscope, the light-combining mirror and the lens are arranged at 45 degrees, and the light-combining mirror and the lens are arranged at 45 degrees;
the time sequence two-piece type projection system also comprises a first reflecting mirror positioned on a first light path between the spectroscope and the light combining mirror, the first reflecting mirror is arranged in parallel with the spectroscope and the light combining mirror, a first incident condenser lens, a first fly-eye lens, a first polarization converter and a first emergent condenser lens are sequentially arranged between the spectroscope and the first reflecting mirror, and a first LCD module is arranged between the first reflecting mirror and the light combining mirror;
the time sequence two-piece type projection system also comprises a second reflecting mirror positioned on a second light path between the spectroscope and the light-combining mirror, the second reflecting mirror is arranged in parallel with the spectroscope and the light-combining mirror, a color wheel, a second incident condenser lens, a second fly-eye lens, a second polarization converter and a second emergent condenser lens are sequentially arranged between the spectroscope and the second reflecting mirror, and a second LCD module is arranged between the second reflecting mirror and the light-combining mirror;
the high-pressure mercury lamp emits white convergent light, the white convergent light passes through the beam splitter and then reflects blue light, the yellow light penetrates through the color wheel and is converted into red light and green light which are alternately converted, the red light and the green light are converted into parallel light after passing through the second incident condenser lens, the parallel light is converted into polarized light after passing through the second fly eye lens and the second polarization converter and irradiates the polarized light on the second LCD module, the second LCD module alternately displays input red and green signals, and the signal alternate and incident light colors are synchronous; the blue light is changed into parallel light after passing through the first incident condenser lens, is changed into polarized light after passing through the first fly-eye lens and the first polarization converter, and is irradiated onto the first LCD module, the first LCD module displays an input blue signal, and light rays passing through the first LCD module and the second LCD module are combined by the light combining lens and then are imaged on a screen by the lens.
2. The time sequential two-piece projection system of claim 1, wherein the first LCD module and the second LCD module employ black and white LCDs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221879361.4U CN217787588U (en) | 2022-07-21 | 2022-07-21 | Two formula projection systems of chronogenesis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221879361.4U CN217787588U (en) | 2022-07-21 | 2022-07-21 | Two formula projection systems of chronogenesis |
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| Publication Number | Publication Date |
|---|---|
| CN217787588U true CN217787588U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221879361.4U Active CN217787588U (en) | 2022-07-21 | 2022-07-21 | Two formula projection systems of chronogenesis |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116841106A (en) * | 2023-06-12 | 2023-10-03 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
-
2022
- 2022-07-21 CN CN202221879361.4U patent/CN217787588U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116841106A (en) * | 2023-06-12 | 2023-10-03 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
| CN116841106B (en) * | 2023-06-12 | 2024-04-19 | 深圳市科金明电子股份有限公司 | Two-piece type LCD projection device with optical filtering function and projection method |
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