CN103969936A - Light machine device of rear-projection television - Google Patents
Light machine device of rear-projection television Download PDFInfo
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- CN103969936A CN103969936A CN201310026742.7A CN201310026742A CN103969936A CN 103969936 A CN103969936 A CN 103969936A CN 201310026742 A CN201310026742 A CN 201310026742A CN 103969936 A CN103969936 A CN 103969936A
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- focus lens
- projection
- short
- light source
- mechanical apparatus
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Abstract
The invention provides a light machine device of a rear-projection television. The light machine device comprises a light source, an optical assembly, a short-focus lens and a curved mirror. The light source and the short-focus lens are arranged on a bearing plate side by side, the light source is connected with the short-focus lens through the optical assembly, the curved mirror is arranged at the front end of the short-focus lens, and the relative positions of the short-focus lens and the curved mirror are stabilized through a fixing base arranged on the bearing plate. According to the light machine device of the rear-projection television, the relative positions of the short-focus lens and the curved mirror are set so that the projection distance can be reduced and the thinning design of the rear-projection television can be facilitated.
Description
Technical field
The present invention relates to a kind of optical mechanical apparatus of rear-projection TV, relate in particular to a kind of optical mechanical apparatus of the rear-projection TV with shortening projector distance thinned casing thickness.
Background technology
The image display of general rear-projection TV, is mainly the running by optical mechanical apparatus, produces and has the projected light beam of dicom message, then by projection lens and catoptron, described projected light beam is projected on display screen.Wherein, described projected light beam is the light beam that the light source that had by described optical mechanical apparatus produces, after being optimized and processing, an optical module forms, described light source uses at present as tungsten halogen lamp, metal halide lamp, ultrahigh pressure mercury lamp or xenon lamp etc., although have high brightness, common characteristic is that volume is excessive.In addition, described projection lens is for fear of the most telecentric lens that adopt of projection image distortion, described telecentric lens need to be longer projector distance, be just able to a relative large plane mirror or plane mirror large with, a little parallel opposed, carry out the projection of described projected light beam.Above-mentioned optical mechanical apparatus because the volume of described light source is large, the problem such as be oppositely arranged of the long projector distance of described projection lens and described catoptron, cause described optical mechanical apparatus cannot adapt to the trend of electronic product development " frivolous, short, little " in recent years, cause described production development to have its shortcoming and difficult to be overcome.
Summary of the invention
In view of this, be necessary to provide the optical mechanical apparatus that can effectively reduce the rear-projection TV of casing thickness.
The invention provides a kind of optical mechanical apparatus of rear-projection TV, it comprises a light source, an optical module, a short-focus lens and a curved mirror, described light source and described short-focus lens are set up in parallel on a loading plate, between described light source and described short-focus lens, link by described optical module, the front end of described short-focus lens arranges described curved mirror, and by a firm described short-focus lens of holder having on described loading plate and the relative position of described curved mirror.
Compare prior art, the optical mechanical apparatus of rear-projection TV of the present invention, position by described light source and described short-focus lens and described curved mirror arranges, and can effectively reduce the volume of described optical mechanical apparatus and the distance of described projected light beam projection, thereby can be conducive to the thinning of rear-projection TV.
Brief description of the drawings
Fig. 1 is the embodiment schematic diagram of the optical mechanical apparatus of rear-projection TV of the present invention.
Fig. 2 is the side view of the optical mechanical apparatus of Fig. 1 rear-projection TV.
Fig. 3 is the vertical view of the optical mechanical apparatus of Fig. 1 rear-projection TV.
Main element symbol description
| Optical mechanical apparatus | 10 |
| Loading plate | 102 |
| Location-plate | 1022 |
| Holder | 104 |
| Light source | 12 |
| Red light emitting diodes | 122 |
| Green LED | 124 |
| Blue LED | 126 |
| Optical module | 14 |
| Short-focus lens | 16 |
| Curved mirror | 18 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Below in conjunction with accompanying drawing, the present invention being done to one specifically introduces.
Referring to Fig. 1, is the embodiment schematic diagram of the optical mechanical apparatus of rear-projection TV of the present invention, and described optical mechanical apparatus 10 comprises a light source 12, optical module 14, short-focus lens 16 and a curved mirror 18.Described light source 12 is to be solid state light emitter or solid-state light module, described solid state light emitter is light emitting diode (Light Emitting Diode, or laser diode (Laser Diode LED), LD), described light source 12 uses solid state light emitter or solid-state light module in order to dwindle the excessive volume of current projection light source bulb.In present embodiment, described light source 12 is the solid-state light module for light emitting diode, has a red light emitting diodes 122, green LED 124 and a blue LED 126, in order to trichromatic color of light to be provided.Described light source 12 is set up in parallel on a loading plate 102 with described short-focus lens 16, is the shared space of linear array in order to reduce light source, optical module and the projection lens of current rear-projection TV ray machine.Between described light source 12 and described short-focus lens 16, link by described optical module 14, optical module 14 described in the three color of light directives that the solid-state light module of described light source 12 produces, described optical module 14 is accepted three color of light that described light source 12 penetrates and is processed, and projects through described optical module 14 described light source 12 light beams after treatment by described short-focus lens 16 again.Described optical module 14 includes the members such as Multiplexing apparatus, leaded light component, water chestnut mirror group and digital micromirror display equipment (being for not indicating in known component diagram).Wherein, Multiplexing apparatus is accepted three color of light that described light source 12 produces and is carried out mixed light processing and make it directive leaded light component.Leaded light component can be photoconductive tube (Light Tunnel), and photoconductive tube carries out even light and eliminates the running of hot spot described light source 12 light beams with repeatedly reflecting of light.Leaded light component and digital micromirror display equipment (Digital Micro-mirror Device, water chestnut mirror group is set DMD), described light source 12 light beams through leaded light component dodging are projected to water chestnut mirror group, by water chestnut mirror group, described light source 12 light beams are projected on numerical digit micro mirror display device.Digital micromirror display equipment forms the projected light beam with dicom message, the projection of carrying out image display that coordinates with described curved mirror 18 by described short-focus lens 16 again of described projected light beam in accepting described light source 12 light beam aftertreatments.
The front end of described short-focus lens 16 arranges described curved mirror 18, in order to form reflective short-focus lens module, can shorten the distance of projection by described short-focus lens 16, the described curved mirror 18 of described short-focus lens 16 front end settings can avoid described short-focus lens 16 to project the problem of image distortion.Between described short-focus lens 16 and described curved mirror 18, image projection is stable and accurate, need to maintain the firm of described short-focus lens 16 and described curved mirror 18 relative positions, the described loading plate 102 front ends extensions that described short-focus lens 16 arranges have a location-plate 1022, described location-plate 1022 has a holder 104 and arranges in the end of relatively described short-focus lens 16, described holder 104 is to be a grooved seat, and mode curved mirror 18 is arranged at the described grooved pedestal interior (as shown in Figure 2) of described holder 104.Between described holder 104 and described short-focus lens 16, there is a spacing, the described spacing of described holder 104 and described short-focus lens 16, make to there is fixing projector distance between described short-focus lens 16 and described curved mirror 18, and set described curved mirror 18 by described holder 104, make described short-focus lens 16 and relative position and the projector distance of described curved mirror 18 can keep firm.As mentioned above, described in present embodiment, light source 12 dwindles light source 12 volumes described in described optical mechanical apparatus 10 with solid-state light module, described light source 12 arranges in mode arranged side by side with described short-focus lens 16, in order to shorten the light projected path of described light source 12 light beams, the setting of described short-focus lens 16 and described curved mirror 18 relative positions, more effectively shorten the projector distance (as shown in Figure 3) of described projected light beam, thereby the volume of described optical mechanical apparatus 10 and projector distance can dwindle effectively compared to the rear-projection TV ray machine of current use, be conducive to the thin type design in the time that rear-projection TV uses.
The optical mechanical apparatus of rear-projection TV of the present invention, volume and the beam path of described light source 12 all dwindle effectively, described short-focus lens 16 is set with described curved mirror 18 relative positions, shorten projector distance simultaneously, make described optical mechanical apparatus 10 under the use of rear-projection TV, the thickness that is conducive to reduce rear-projection TV carries out the design of thinning and uses.
In addition, those skilled in the art also can do other and change in spirit of the present invention, and certainly, the variation that these do according to spirit of the present invention, within all should being included in the present invention's scope required for protection.
Claims (7)
1. the optical mechanical apparatus of a rear-projection TV, it comprises a light source, an optical module, a short-focus lens and a curved mirror, it is characterized in that: described light source and described short-focus lens are set up in parallel on a loading plate, between described light source and described short-focus lens, link by described optical module, the front end of described short-focus lens arranges described curved mirror, and by a firm described short-focus lens of holder having on described loading plate and the relative position of described curved mirror.
2. the optical mechanical apparatus of rear-projection TV as claimed in claim 1, is characterized in that: described light source is to be solid state light emitter or solid-state light module, and described solid state light emitter is light emitting diode or laser diode.
3. the optical mechanical apparatus of rear-projection TV as claimed in claim 1, is characterized in that: described light source is the solid-state light module for light emitting diode, has a red light emitting diodes, a green LED and a blue LED.
4. the optical mechanical apparatus of rear-projection TV as claimed in claim 1, is characterized in that: described loading plate front end extension has a location-plate, and described location-plate has a holder setting in the end of relatively described short-focus lens.
5. the optical mechanical apparatus of rear-projection TV as claimed in claim 4, is characterized in that: described holder is to be a grooved seat, and described curved mirror is arranged in described grooved pedestal.
6. the optical mechanical apparatus of rear-projection TV as claimed in claim 4, is characterized in that: between described holder and described short-focus lens, have a spacing.
7. the optical mechanical apparatus of rear-projection TV as claimed in claim 1, is characterized in that: between described short-focus lens and described curved mirror, have fixing projector distance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026742.7A CN103969936A (en) | 2013-01-24 | 2013-01-24 | Light machine device of rear-projection television |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310026742.7A CN103969936A (en) | 2013-01-24 | 2013-01-24 | Light machine device of rear-projection television |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103969936A true CN103969936A (en) | 2014-08-06 |
Family
ID=51239604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310026742.7A Pending CN103969936A (en) | 2013-01-24 | 2013-01-24 | Light machine device of rear-projection television |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103969936A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008496A1 (en) * | 2005-01-28 | 2007-01-11 | Seiko Epson Corporation | Image display |
| CN101025557A (en) * | 2006-02-24 | 2007-08-29 | 精工爱普生株式会社 | Projector |
| CN102736376A (en) * | 2011-04-01 | 2012-10-17 | 精工爱普生株式会社 | Projector, projection unit, and interactive board |
-
2013
- 2013-01-24 CN CN201310026742.7A patent/CN103969936A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070008496A1 (en) * | 2005-01-28 | 2007-01-11 | Seiko Epson Corporation | Image display |
| CN101025557A (en) * | 2006-02-24 | 2007-08-29 | 精工爱普生株式会社 | Projector |
| CN102736376A (en) * | 2011-04-01 | 2012-10-17 | 精工爱普生株式会社 | Projector, projection unit, and interactive board |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |