CN105573029A - Projection lamp - Google Patents
Projection lamp Download PDFInfo
- Publication number
- CN105573029A CN105573029A CN201410543627.1A CN201410543627A CN105573029A CN 105573029 A CN105573029 A CN 105573029A CN 201410543627 A CN201410543627 A CN 201410543627A CN 105573029 A CN105573029 A CN 105573029A
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- Prior art keywords
- projection
- photoswitch
- light source
- rete
- lattice
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- 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.)
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- Liquid Crystal (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
Disclosed in the invention is a projection lamp for carrying out projection on a projection target plane. The projection lamp comprises a light source and a lattice type photoswitch film layer arranged at the outer side of the light source. A plurality of lattice drive circuits for controlling the light transmittance of the lattice area are arranged on the photoswitch film layer. According to the invention, because the lattice type photoswitch film layer covers the outer side of the light source, light-transmitting or non-light-transmitting states of all lattice positions on the photoswitch film layer can be realized by adjusting the lattice drive circuits arranged on the lattice type photoswitch film layer and can be projected on a projection target plane. On the basis of the design of the lattice drive circuits, a dynamic display image can be realized. Therefore, effects of the projection function and decorative illumination can be realized.
Description
Technical field
The present invention relates to lighting technical field, be specifically related to a kind of projection lamp.
Background technology
Projection Display lamp has important application at commercial advertisement, decorative lighting, toy for children in field.Prior art technical scheme majority can only show fixed pattern, cannot realize dynamically and changing picture.
Chinese patent literature CN203340200U discloses a kind of PDLC transparent projection display device, comprise at least one PDLC transparent display screen, the projector corresponding with described PDLC transparent display screen quantity, and video-generating device, described projector is connected by video transmission interface or wireless communication module with video-generating device, and PDLC transparent display screen is arranged on a focal plane of described projector.
Above-mentioned patent documentation using PDLC liquid crystal film as projection display screen, for special projection, its complex structure, and cost is high, does not possess conventional illumination functions.
Summary of the invention
For this reason, the present invention want technical solution problem to be: existing Projection Display lamp cannot Dynamic Announce respective symbols or pattern, and Special projector cannot realize the problem of normal illumination, for this reason, the invention provides a kind of projection lamp, it is with low cost, can realize normal illumination and dynamic projection simultaneously.
The technical scheme adopted is as described below:
A kind of projection lamp, for projecting to projection target face, comprise light source, also comprise the dot matrix type photoswitch rete be arranged on outside described light source, described photoswitch rete is provided with multiple dot-matrix drive circuit for controlling its dot matrix region transmittance.
Described photoswitch rete is liquid crystal film or electroluminescent fluid film.
Described light source is the one in LED light source, incandescent lamp, fluorescent light or OLED light source.
The thickness of described photoswitch rete is 0.02-5mm.
Described projection target face is metope or projection screen.
Described projection target face is arranged around described photoswitch rete.
Described projection target face is parallel to described photoswitch rete and arranges.
The present invention has following beneficial effect relative to prior art:
The present invention is by the photoswitch rete at arranged outside one deck dot matrix type of light source, by the dot-matrix drive circuit on point of adjustment formation photoswitch rete, the printing opacity of each dot matrix position on photoswitch rete and lighttight control can be realized, and projected on projection target face, by the design to dot-matrix drive circuit, Dynamic Announce character and pattern etc. can be realized, realize the effect of projecting function and decorative lighting.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is projection lamp structural representation provided by the present invention;
Fig. 2 is the photoswitch film layer structure schematic diagram of dot matrix type provided by the present invention;
Fig. 3 is dot matrix type PDLC liquid crystal film driving circuit switch control rule principle schematic.
Fig. 4 is dot matrix type electroluminescent fluid film driving circuit switch control rule principle schematic.
In figure: 1-light source; 2-photoswitch rete; 3-lamp socket; 4-projection target face.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
As shown in Figure 1 and Figure 2, the invention provides a kind of projection lamp, for projecting to projection target face, comprise light source, be arranged on dot matrix type photoswitch rete outside described light source, here photoswitch rete is liquid crystal film or electroluminescent fluid film, and photoswitch rete is provided with multiple dot-matrix drive circuit for reference mark formation photoswitch rete transmittance.Light source is wherein LED light source, incandescent lamp, fluorescent light or OLED light source etc.
Photoswitch rete of the present invention is liquid crystal film or electroluminescent fluid film, and liquid crystal film preferably adopts PDLC liquid crystal film.
Described projection target face is metope or projection screen.
Described projection target face in Fig. 1 is arranged around dot matrix type PDLC liquid crystal film, by controlling the keying of dot-matrix drive circuit, can realize local or all projection and illuminations in projection target face.
The abbreviation of the English PolymerDispersedLiquidCrystal of the PDLC liquid crystal film adopted in the present invention, Chinese name is Polymer Dispersed Liquid Crystal.Polymer Dispersed Liquid Crystal (PDLC) is by low molecular weight liquid crystal (liquidcrystal, be abbreviated as LC) mix mutually with prepolymer KuerUV65 glue, under certain condition through polyreaction, forming micron-sized liquid crystal droplet is evenly dispersed in macromolecule network, the dielectric anisotropy of recycling liquid crystal molecule obtains has the material of electro-optic response characteristic, and it to operate mainly between scattering states and clear state and has certain gray scale.PDLC liquid crystal film of the present invention is the dot matrix type PDLC liquid crystal film formed after dot matrix, and the thickness of dot matrix type PDLC liquid crystal film is 0.02mm-5mm.By the dot-matrix drive circuit of reference mark formation PDLC liquid crystal film, can realize the projection on metope or projection screen such as pattern, word, structure is simple, and cost is lower.
As shown in Figure 3, PDLC liquid crystal film defines multiple liquid crystal pixel point with dot matrix, each liquid crystal pixel point is equipped with the driving circuit for controlling its transmittance.When energized, the liquid crystal molecule of rete corresponding pixel points is regularly arranged, and this location point light can pass through smoothly.When not making alive, liquid crystal molecule is in lack of alignment state, and light, to herein, diffuse reflection occurs, and light transmission rate declines, and is rambling scattered light through light.By controlling the display that can realize the information such as figure, word and color through state of each lattice lcd.
Wherein direct projection through light, can project on wall or other screen, show the contents such as corresponding pattern, word.
As shown in Figure 4, when photoswitch rete adopts electroluminescent fluid film, electroluminescent fluid film defines multiple switch pixels point with dot matrix, and each pixel is equipped with the driving circuit dripping form for controlling its intermediate liquid.When energized, drop is expanded, and causes this pixel light tight.When not making alive, drop shrinks due to tension force.This pixel transmittance rate improves.The dot matrix switch of this Film preparation is combined with light source, as above-mentioned similar, also can obtains Projection Display.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (7)
1. a projection lamp, for to the projection of projection target face, comprise light source, it is characterized in that, also comprise the dot matrix type photoswitch rete be arranged on outside described light source, described photoswitch rete is provided with multiple dot-matrix drive circuit for controlling its dot matrix region transmittance.
2. projection lamp according to claim 1, is characterized in that, described photoswitch rete is liquid crystal film or electroluminescent fluid film.
3. projection lamp according to claim 1, is characterized in that, described light source is the one in LED light source, incandescent lamp, fluorescent light or OLED light source.
4., according to the arbitrary described projection lamp of claim 1-3, it is characterized in that, the thickness of described photoswitch rete is 0.02mm-5mm.
5. projection lamp according to claim 4, is characterized in that, described projection target face is metope or projection screen.
6. projection lamp according to claim 5, is characterized in that, described projection target face is arranged around described photoswitch rete.
7. projection lamp according to claim 5, is characterized in that, described projection target face is parallel to described photoswitch rete and arranges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543627.1A CN105573029A (en) | 2014-10-15 | 2014-10-15 | Projection lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410543627.1A CN105573029A (en) | 2014-10-15 | 2014-10-15 | Projection lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105573029A true CN105573029A (en) | 2016-05-11 |
Family
ID=55883325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410543627.1A Pending CN105573029A (en) | 2014-10-15 | 2014-10-15 | Projection lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105573029A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189826A (en) * | 2019-01-09 | 2021-07-30 | 深圳市光鉴科技有限公司 | Structured light projector and 3D camera |
| CN114543036A (en) * | 2022-03-21 | 2022-05-27 | 刘李芳 | Projection lamp |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928662A (en) * | 2005-09-05 | 2007-03-14 | 日本电气株式会社 | Display device, terminal device, light source device, and optical member |
| CN101000129A (en) * | 2006-01-10 | 2007-07-18 | 陈国平 | Method and device for changing state of scattering or transmission of low energy lamp |
| CN101059607A (en) * | 2006-04-17 | 2007-10-24 | 孙刚 | Electrically-controlled liquid crystal light modulation glass and film |
| US20130222739A1 (en) * | 2012-02-29 | 2013-08-29 | Boe Technology Group Co., Ltd. | Transparent display unit |
| CN103581590A (en) * | 2012-07-23 | 2014-02-12 | 精工爱普生株式会社 | Projector and control method therefor |
-
2014
- 2014-10-15 CN CN201410543627.1A patent/CN105573029A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1928662A (en) * | 2005-09-05 | 2007-03-14 | 日本电气株式会社 | Display device, terminal device, light source device, and optical member |
| CN101000129A (en) * | 2006-01-10 | 2007-07-18 | 陈国平 | Method and device for changing state of scattering or transmission of low energy lamp |
| CN101059607A (en) * | 2006-04-17 | 2007-10-24 | 孙刚 | Electrically-controlled liquid crystal light modulation glass and film |
| US20130222739A1 (en) * | 2012-02-29 | 2013-08-29 | Boe Technology Group Co., Ltd. | Transparent display unit |
| CN103581590A (en) * | 2012-07-23 | 2014-02-12 | 精工爱普生株式会社 | Projector and control method therefor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113189826A (en) * | 2019-01-09 | 2021-07-30 | 深圳市光鉴科技有限公司 | Structured light projector and 3D camera |
| CN114543036A (en) * | 2022-03-21 | 2022-05-27 | 刘李芳 | Projection lamp |
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| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160511 |
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| RJ01 | Rejection of invention patent application after publication |