CN209606761U - A kind of light source direct imaging optical projection apparatus - Google Patents
A kind of light source direct imaging optical projection apparatus Download PDFInfo
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- CN209606761U CN209606761U CN201821976286.7U CN201821976286U CN209606761U CN 209606761 U CN209606761 U CN 209606761U CN 201821976286 U CN201821976286 U CN 201821976286U CN 209606761 U CN209606761 U CN 209606761U
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- light emitting
- optical projection
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Abstract
The utility model proposes a kind of light source direct imaging optical projection apparatus, including light source cabinet, matrix spotlight source device, optical projection system, projection screen and screen support；Wherein light source cabinet fixes and supports matrix spotlight source device；Matrix spotlight source device is equipped with the imaging panel for several light emitting source pixels composition closely arranged in matrix form, and product original route design drawing is produced and for the light emitting source pixel being related to electroluminescence by the parsing imaging of image information processing tool by computer, form point source image；Optical projection system is made of several pieces of object lens, and point source image is pressed projection ratio enlargement by object lens, then is mapped on projection screen.The present apparatus can need to carry out according to image luminous, and light source utilization rate is high, and low energy consumption, and is not necessarily to LCD or DMD imaging unit, reduces device volume and production cost while reducing original part and constituting.
Description
Technical field
The utility model relates to projection arts, and in particular to a kind of light source direct imaging optical projection apparatus.
Background technique
Optical projection industry includes family's projection, office education projection, cinema projection, mobile phone projection and intelligent wearable device
Projection etc., is mainly made of light source, imaging unit and optical system, and can according to the imaging mode difference of imaging unit
It is divided into LCD and two kinds of DLP.
LCD (Liquid Crystal Display, liquid crystal display) projector can be divided into liquid crystal board projector and liquid crystal
Light valve projector, the former is the major product in projector market.Liquid crystal is the substance between liquid and solid, itself is not
It shines, operating temperature is -55 DEG C~+66 DEG C.LCD projector utilizes the photoelectric effect of liquid crystal, i.e. liquid crystal molecule is arranged in electricity
It changes under field action, influences the light transmittance or reflectivity of its liquid crystal cells projector, so that its optical property is influenced, to produce
The raw image with different gray-levels and color.Light source in LCD projector is metal halid lamp or cold light source, is issued bright
White light by the spectroscope in light path system be RGB (red, green, blue) three primary colors light by decomposition of white light.RGB tri-
Primary colors light passes through liquid crystal on accurate position, controls the throughput of every kind of light by liquid crystal to synthesize various face
Color, so that projection constitutes and the consistent colorful image of source images on the screen.Due to LCD projector color also
It is former preferably, resolution ratio up to SXGA standard, and it is with small in size, light-weight, portability be high and the more low advantage of price, therefore
Have developed into the main product of projection in the market.
((Digital Light Processing, digital light processing) is with DMD (Digital Micromirror to DLP
Device, digital micromirror) it is used as light valve image device, the technology of DLP projector is reflection type projection technology, in contrast
All very outstanding with uniformity, image definition is high, picture is uniform, color is sharp keen, and picture noise disappears, and image quality is steady
Fixed, accurate digital picture can constantly reproduce, and sustain its quality through age.One DLP computer board by analog-digital decoding device, memory chip,
One video processor and multiple digital signal processors (DSP) composition, character and picture generate digital signal through DLP computer board,
By processing, digital signal goes to heart-DMD of DLP system, and light beam is by being thrown after high-speed rotating three color lens
It penetrates on DMD, is then incident upon on large screen by optical lens and completes image projection.A piece of DMD is small by many
Square reflecting objective (abbreviation micro mirror) is arranged closely together by ranks to be formed in the electronic nodes for being attached to one piece of silicon wafer,
Each micro mirror corresponds to a pixel for generating image.Therefore, the micro mirror number of DMD device determines DLP projector
Physical resolution, such as the resolution ratio of a projector is 600x800, i.e., the micro mirror number on DMD device is 600x800=
480000.The red, green, blue sequence of DMD digital signal rotates, small mirror according to the position of pixel and color number be opened
Or close, DLP can be regarded as the simple light path system of only one light source and one group of projection lens composition, camera lens amplification at this time
The reflected image of DMD simultaneously directly projects on the screen, and the demonstrating effect that such width is lively, bright is just presented in face of us
.
Shadow casting technique has the following problems at present:
1) for .LCD projection light source utilization rate 30%~40%, light source utilization rate is low, most of to be consumed by imaging unit, institute
With energy consumption height, especially small brightness of image poor contrast causes image quality poor.
2) .DLP projection uses DMD catoptric imaging, but each micro mirror is in mechanical action state, and the service life is short, lens reflecting
There is decaying.
3) light source and imaging unit separate, and increase equipment and occupy volume, cause small projection device manufacture difficult, such as hand
Machine projection and intelligent wearable device projection.
Utility model content
The utility model purpose of design is: being required to imaging unit for existing shadow casting technique and light source utilization rate is low
Problem, the utility model proposes a kind of light source direct imaging optical projection apparatus, and wherein matrix spotlight source device can be according to image
Need to carry out it is luminous, energy of light source almost all be used for projection systems project, be not required to light source part not lighting to be shown, to the greatest extent may be used
It can be reduced energy consumption.Light source power substantially reduces, and reduces scattering system while reducing original part and constituting and is taken up space.
To achieve the above objectives, the present invention adopts the following technical solutions: a kind of light source direct imaging optical projection dress
It sets, including light source cabinet, matrix spotlight source device, optical projection system, projection screen and screen support；
The light source cabinet is for fixing and supporting the matrix spotlight source device；
The matrix spotlight source device is equipped with the imaging surface for several light emitting source pixels composition closely arranged in matrix form
Plate, the equal alignment light emitting of light emitting source pixel, the imaging panel is made as plane or curved surface, and passes through shadow by computer
As the parsing imaging of information processing tool produces product original route design drawing and for the light emitting source pixel being related to while or one by one
With electroluminescence, according to image information display and shines and form point source image；
The optical projection system is made of several pieces of object lens, is preferably but not limited to convex lens, designs two kinds of optical paths, includes length
Focal length and short focus, the point source image that the matrix spotlight source device is presented in the object lens, which is pressed, projects ratio enlargement, then by
It is mapped on the projection screen, and object lens compensate optical parallax according to particular optical imaging precision；
For point source image to be imaged, the projection screen is attached on the screen support projection screen.
Technical principle: by analyzing image information, point source image is formed simultaneously under the irradiation of the light emitting source pixel
It is presented on the imaging panel, the point source image is incident upon on the projection screen by optical projection system, is imaged out
The projected picture needed.
Preferably, the light source cabinet design has light intensity detector and CCD image detector.
Preferably, the light emitting source pixel can be laser semiconductor light emitting source or LED light emitting source.Laser semiconductor hair
Light source, which forms the imaging of light emitting source pixel, has superior ray coherence, more conducively propagates and focuses；LED light emitting source minimum can
To arrive 9um (Micro LED), that is, pixel can be close to 9um.
Preferably, each light emitting source pixel dot shape can be any shape, including regular hexagon, regular hexagon hair
The imaging panel of light source pixel point composition is in honeycomb.
Preferably, light source bottom and the top cooperation of the light emitting source pixel carry out optical concentration collimation encapsulation, bottom
Concave mirror is selected, top is used to optical projection using convex lens or Fei Nier lens.
Preferably, it can be suitably filled with optical material between the light emitting source pixel, reduce imaging black area, improve imaging
Smoothness of curve.
Preferably, the image information processing tool include Adobe Photoshop, Dreamweaver, ExifShow,
ACDSee, Turbo Photo handling implement.
Compared with prior art, the utility model has the beneficial effects that
1. the light source direct imaging optical projection apparatus, light source life is long, and low energy consumption, is not necessarily to LCD or DMD imaging unit,
Especially DMD imaging unit creates a monopoly for foreign countries, which greatly reduces volume, energy consumption and cost, and LED light source utilizes
Rate is high, and the luminous illumination of pixel is high, is easy to get high brightness, and small projection device in high contrast is worn for mobile phone and intelligence
It wears equipment and good drop shadow effect is provided.
2. the sense of reality of three-dimensional imaging is provided may since pixel intensity and contrast improve.
3. substituting existing TV for family's projection, office projection and display providing possibility, it is often more important that provide high-quality
Wearing projection, substitutes mobile phone browsing function.
Detailed description of the invention
Fig. 1 is the operation schematic diagram of the utility model embodiment light source direct imaging optical projection apparatus；
Fig. 2 is the light source collimating packaging structure schematic diagram of the utility model embodiment light emitting source pixel；
In figure: 1 light source cabinet, 2 matrix spotlight source devices, 3 optical projection systems, 4 projection screens, 5 screen supports, 6 distribution wires,
7 laser semiconductor light emitting sources, 8 concave mirrors, 9 convex lenses.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of technical solution, please refers to Fig. 1 and Fig. 2, a kind of light source direct imaging optical projection dress
It sets, including light source cabinet 1, matrix spotlight source device 2, optical projection system 3, projection screen 4 and screen support 5.
Light intensity detector and CCD image detector are equipped in light source cabinet 1, light source cabinet 1 is for fixing and supporting matrix
Spotlight source device 2, while the control of the temperature such as heat dissipation is carried, guarantee energy of light source and stability.
Matrix spotlight source device 2 is equipped with the imaging panel for several light emitting source pixels composition closely arranged in matrix form,
Imaging panel is made as plane or curved surface, and produces product by the parsing imaging of Adobe Photoshop image information processing tool
Former route design drawing is simultaneously directed to the light emitting source pixel being related to, and matches electroluminescence simultaneously by distribution wire 6, according to image information display
And shine and form point source image, have luminescent properties identity.
Optical projection system 3 is made of 3 pieces of high-precision optical convex lenses 9, and it includes long-focus and short focus that there are two types of optical paths for design
Away from the point source image that matrix spotlight source device 2 is presented in the convex lens 9 is by projection ratio enlargement, then is mapped to projection silver
On curtain 4, and convex lens 9 will also compensate optical parallax.
For point source image to be imaged, projection screen 4 is attached on screen support 5 projection screen 4.
Technical principle: by analyzing image information, point source image is formed under the irradiation of light emitting source pixel and is presented
On imaging panel, point source image is incident upon on projection screen by optical projection system, the projected picture needed is imaged out.
Further, laser semiconductor light emitting source 7 can be selected in light emitting source pixel.
Further, each light emitting source pixel dot shape is positive hexagon, the square of regular hexagon light emitting source pixel composition
Lattice point light supply apparatus is in honeycomb, has the characteristics that imaging exquisiteness is soft, color bleeding is round and smooth, clarity is high.
Further, light source bottom and the top cooperation of light emitting source pixel carry out optical concentration collimation encapsulation, bottom choosing
With concave mirror 8, top uses convex lens 9.
Further, it can be suitably filled with optical material between light emitting source pixel, reduce imaging black area, it is bent to improve imaging
Line smoothness.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (7)
1. a kind of light source direct imaging optical projection apparatus, it is characterised in that: including light source cabinet, matrix spotlight source device, throw
Shadow system, projection screen and screen support；
The light source cabinet is for fixing and supporting the matrix spotlight source device；
The matrix spotlight source device is equipped with the imaging panel for several light emitting source pixels composition closely arranged in matrix form, institute
The equal alignment light emitting of light emitting source pixel is stated, the imaging panel is made as plane or curved surface, and believes by computer by image
Breath handling implement parsing imaging produces product original route design drawing and the simultaneously or one by one distribution for the light emitting source pixel that is related to
Shine, according to image information display and shine form point source image；
The optical projection system is made of several pieces of object lens, the point source image that the matrix spotlight source device is presented in the object lens
It by projection ratio enlargement, then is mapped on the projection screen, and object lens compensate optics according to particular optical imaging precision
Error；
For point source image to be imaged, the projection screen is attached on the screen support projection screen.
2. light source direct imaging optical projection apparatus according to claim 1, it is characterised in that: the light source cabinet design
There are light intensity detector and CCD image detector.
3. light source direct imaging optical projection apparatus according to claim 1, it is characterised in that: the light emitting source pixel
It can be laser semiconductor light emitting source or LED light emitting source.
4. light source direct imaging optical projection apparatus according to claim 1 or 3, it is characterised in that: each described luminous
Source pixel dot shape can be any shape, including regular hexagon, and the imaging panel of regular hexagon light emitting source pixel composition is in
Honeycomb.
5. light source direct imaging optical projection apparatus according to claim 1 or 3, it is characterised in that: the luminous source image
The light source bottom of vegetarian refreshments and top cooperation carry out optical concentration collimation encapsulation, and concave mirror is selected in bottom, top using convex lens or
Luxuriant and rich with fragrance Neil lens are used to optical projection.
6. light source direct imaging optical projection apparatus according to claim 1 or 3, it is characterised in that: the luminous source image
It can be suitably filled with optical material between vegetarian refreshments, reduce imaging black area, improve imaging smoothness of curve.
7. light source direct imaging optical projection apparatus according to claim 1, it is characterised in that: the image information processing
Tool includes Adobe Photoshop, Dreamweaver, ExifShow, ACDSee, Turbo Photo handling implement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821976286.7U CN209606761U (en) | 2018-11-28 | 2018-11-28 | A kind of light source direct imaging optical projection apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821976286.7U CN209606761U (en) | 2018-11-28 | 2018-11-28 | A kind of light source direct imaging optical projection apparatus |
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| CN209606761U true CN209606761U (en) | 2019-11-08 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597274A (en) * | 2018-11-28 | 2019-04-09 | 上海频微电子科技有限公司 | A kind of light source direct imaging optical projection apparatus and its method |
| CN116504147A (en) * | 2023-06-28 | 2023-07-28 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
-
2018
- 2018-11-28 CN CN201821976286.7U patent/CN209606761U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109597274A (en) * | 2018-11-28 | 2019-04-09 | 上海频微电子科技有限公司 | A kind of light source direct imaging optical projection apparatus and its method |
| CN116504147A (en) * | 2023-06-28 | 2023-07-28 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
| CN116504147B (en) * | 2023-06-28 | 2023-09-01 | 元旭半导体科技(无锡)有限公司 | LED direct-display projection array light-emitting module and display screen |
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