CN1779558A - Projecting lens set and its reflector - Google Patents
Projecting lens set and its reflector Download PDFInfo
- Publication number
- CN1779558A CN1779558A CNA200410096260XA CN200410096260A CN1779558A CN 1779558 A CN1779558 A CN 1779558A CN A200410096260X A CNA200410096260X A CN A200410096260XA CN 200410096260 A CN200410096260 A CN 200410096260A CN 1779558 A CN1779558 A CN 1779558A
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- China
- Prior art keywords
- cover plate
- reverberator
- framework
- projection lens
- lens group
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Abstract
A projection lens set consists of a base with a through hole and a reflector including a cover plate, a connection regulating element, a frame and a reflection element. It features that reflection element is set in frame being connected to one side of cover plate through connection regulating element, gap between frame and cover plate can be regulated by connection regulating element, cover plate is set in base through hole to make frame and reflection element be in through hole.
Description
Technical field
The present invention relates to a kind of projection lens group, particularly a kind of reverberator of projection lens group.
Background technology
In present optical projection system, no matter be to adopt LCD (Liquid Crystal Display), LCOS (Liquid Crystal on Silicon) or DLP projection theories such as (Digital Light Processing), the projection lens group all is wherein indispensable important structure.In an optical projection system, light through penetration or reflective light changing device (light valve) after, need to be projected to screen imaging, so the resolution of projection lens group and precision all need meet the requirement of optical projection system, to reach desirable drop shadow effect by the projection lens group.
The projection lens group generally is made up of several pieces lens, makes light ray bending as need, the use reverberator of then need arranging in pairs or groups.Light changes will to amplify through lens behind the path via reverberator again and is projected to screen, thus if light path has deviation slightly, through the amplification of lens, promptly may occur image blur, can't focusing, the result that twists of position deviation, imaging.
As shown in Figure 1, in the existing projection lens group 1, reverberator 2 only is fixed on the projection lens group pedestal 3, and does not have any adjusting gear.That is as shown in Figure 2, reverberator 2 structures own comprise an eyeglass 21 and a cover plate 22, and eyeglass 21 is fixed on the cover plate 22.
As mentioned above, because existing reverberator is fixed, and in the process of design and processing, may have error amount, institute caused when this error may be loaded on projection lens group pedestal from the processing of glass mirror and metal base plate or reflector group, this error will make the reflective projection effect not as expecting and no revisal way after combination, it dismounting must be re-assemblied as revising reluctantly, when dismounting, be difficult for the decision errors source still more.Therefore, the precision requirement height of fixed reverberator, processing charges increases relatively, adds when desire is adjusted reflecting effect disassembly and assembly again etc., all causes man-hour, cost waste.
Therefore, the present invention desires to provide a kind of structure of adjusting reverberator, via the shirtsleeve operation mode error that causes of revisal reverberator fast, makes the reflective projection effect better, can exempt the generation that re-assemblies, reduces time cost and fraction defective simultaneously.
Summary of the invention
Because above-mentioned problem, the objective of the invention is to overcome the deficiencies in the prior art and defective, provide a kind of and can adjust, exempt disassembly and assembly again and reduce projection lens group fraction defective and then the projection lens group and the reverberator thereof of raising reflective projection effect.
For reaching above-mentioned purpose, reverberator provided by the invention comprises a cover plate, element, a framework and a reflecting element are adjusted at least one binding.Wherein, reflecting element is positioned in the framework, and link the adjustment element framework is linked to a side of cover plate, and can adjusts the gap of framework and cover plate.
For reaching above-mentioned purpose, the present invention more provides a kind of projection lens group, and it comprises a pedestal and a reverberator.Pedestal has a through hole, and reverberator comprises a cover plate, at least one binding adjustment element, a framework and a reflecting element.Wherein, reflecting element is positioned in the framework, and link the adjustment element framework is linked to a side of cover plate, and can adjusts the gap of framework and cover plate, and last cover plate is assembled on the through hole of pedestal, makes framework and reflecting element be positioned at through hole.
From the above, because of framework and the cover plate that has separate type according to projection lens group of the present invention and reverberator thereof, and it is continuous to adjust element by at least one binding, can utilize the angle of one or more mode adjustment reflecting elements and the spacing of reflecting element and cover plate so link the adjustment element, so multidirectional variation of reflecting element adds the front and back position adjustment, can produce splendid reflective projection effect.Finish and drop shadow effect when not good when projection lens group assembling, also can utilize this reverberator to finely tune earlier, with the complicated program of exempting dismounting projection lens group and reinstalling.
Description of drawings
Fig. 1 is the diagrammatic cross-section of existing projection lens group;
Fig. 2 is existing reverberator synoptic diagram;
Fig. 3 shows the reverberator synoptic diagram according to preferred embodiment of the present invention;
Fig. 4 A shows according to the diagrammatic cross-section before the reverberator adjustment of preferred embodiment of the present invention;
Fig. 4 B shows according to the adjusted diagrammatic cross-section of the reverberator of preferred embodiment of the present invention;
Fig. 5 shows the diagrammatic cross-section according to the projection lens group of preferred embodiment of the present invention.
Symbol description among the figure
1 projection lens group
2 reverberators
21 eyeglasses
22 cover plates
3 projection lens group pedestals
4 reverberators
41 cover plates
42 link the adjustment element
43 frameworks
44 reflecting elements
45 flexible members
5 projection lens groups
6 pedestals
61 through holes
Embodiment
Hereinafter with reference to relevant drawings, reverberator and projection lens group according to preferred embodiment of the present invention are described, wherein components identical will be illustrated with identical reference marks.
Please refer to shown in Figure 3ly, the reverberator 4 of preferred embodiment of the present invention comprises that a cover plate 41, at least one binding adjust element 42, a framework 43 and a reflecting element 44.Reflecting element 44 is positioned in the framework 43, links adjustment element 42 framework 43 is linked to a side of cover plate 41, and can adjust the gap of cover plate 41 and framework 43.Adopt three to link adjustment element 42 (as shown in Figure 3) in the present embodiment, linking adjustment element 42 is a screw, and reflecting element 44 is an eyeglass.
Please refer to Fig. 4 A, it shows the diagrammatic cross-section before the reverberator of preferred embodiment of the present invention is adjusted.In reverberator 4, link and adjust the spacing that element 42 has been controlled cover plate 41 and framework 43, also determined spacing and the angle of cover plate 41 with reflecting element 44, and in the gap of cover plate 41 and framework 43, be provided with a flexible member 45, before adjusting, cover plate 41, framework 43 all are parastate with reflecting element 44.In this preferred embodiment, flexible member 45 is a spring, and it can also be a shell fragment certainly.
Then please refer to Fig. 4 B, its reverberator that shows preferred embodiment of the present invention carries out adjusted diagrammatic cross-section.When link to adjust element 42 outward winding make that flexible member 45 stretches, when the gap of cover plate 41 and framework 43 becomes big, reflecting element 44 also with by framework 43 liftings, this moment, reflecting element 44 was no longer parallel with cover plate 41 and form an angle, the angle that causes light to be incident to reflecting element 44 changes, make that the angle of reflection is also different, so can reach the effect of revising the projection ray path.In this preferred embodiment, link to adjust element 42 with one and outward winding, it can also be outwarded winding certainly, and one or more links and adjusts element, to reach multidirectional adjustment effect.
Below be the preferred embodiment of projection lens group of the present invention, be convenient to understand for making, the symbol among the following embodiment continue to use with last embodiment in the symbol of components identical illustrate.
Please refer to Fig. 5, the projection lens group 5 that it shows according to preferred embodiment of the present invention comprises a pedestal 6 and a reverberator 4.Wherein, pedestal 6 has a through hole 61, and 4 of reverberators comprise a cover plate 41, at least one binding adjustment element 42, a framework 43 and a reflecting element 44 (as shown in Figure 3).Reflecting element 44 is positioned in the framework 43, link to adjust element 42 framework 43 is linked to a side of cover plate 41, and can adjust cover plate 41 and framework 43 gaps, during this time in the crack and be provided with a flexible member 45 (shown in Fig. 4 A).Last reverberator 4 is to be assembled on the through hole 61 of pedestal 6 with cover plate 41, makes framework 43 and reflecting element 44 all be positioned at through hole 61.In the projection lens group of this preferred embodiment, linking adjustment element 42 is a screw, and reflecting element 44 is an eyeglass, and flexible member 45 is a spring, and it can also be a shell fragment certainly.
When the reflective projection poor effect, can adjust the reverberator of projection lens group, and the explanation (please refer to Fig. 4 A and Fig. 4 B) in last embodiment of relevant adjustment mode, do not give unnecessary details so do not add at this.
In sum, projection lens group of the present invention and reverberator thereof can be adjusted with the revisal error for the position and the angle of reflecting element by linking the adjustment element, and then improve the reflective projection effect.Be installed on the pedestal of projection lens group when this reverberator after, still can utilize binding to adjust element and finely tune, and not need reverberator is dismantled on pedestal, so can reach the effect of promptly effectively improving the reflective projection effect by ease of Use really.
The above only is an illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the scope of claims its equivalent modifications of carrying out or change.
Claims (10)
1. the reverberator of a projection lens group is characterized in that, comprises:
One cover plate;
Element is adjusted at least one binding, and it is arranged on this cover plate;
One framework, it adjusts the side that element is linked to this cover plate by this binding, and the gap of this framework and this cover plate is linked by this adjusts the element adjustment; And
One reflecting element, it is arranged in this framework.
2. reverberator as claimed in claim 1, wherein, it is a screw that element is adjusted in this binding.
3. reverberator as claimed in claim 1 wherein, more comprises a flexible member, and this flexible member is positioned at the gap of this framework and this cover plate.
4. reverberator as claimed in claim 3, wherein, this flexible member is a spring or is a shell fragment.
5. reverberator as claimed in claim 1, wherein this reflecting element is an eyeglass.
6. a projection lens group is characterized in that, comprises:
One pedestal, it has a through hole; And
One reverberator, it comprises a cover plate, at least one binding adjustment element, a framework and a reflecting element, wherein, this reflecting element is arranged in this framework, this framework is adjusted the side that element is linked to this cover plate via this binding, the gap that element is adjusted this framework and this cover plate is adjusted in this binding, and this cover plate combines with this through hole and makes this framework and this reflecting element be positioned at this through hole.
7. projection lens group as claimed in claim 6, wherein, it is a screw that element is adjusted in this binding.
8. projection lens group as claimed in claim 6, wherein, this reverberator more comprises a flexible member, and this flexible member is positioned at the gap of this framework and this cover plate.
9. projection lens group as claimed in claim 8, wherein, this flexible member is a spring or is a shell fragment.
10. projection lens group as claimed in claim 6, wherein, this reflecting element is an eyeglass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200410096260XA CN1779558A (en) | 2004-11-25 | 2004-11-25 | Projecting lens set and its reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200410096260XA CN1779558A (en) | 2004-11-25 | 2004-11-25 | Projecting lens set and its reflector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1779558A true CN1779558A (en) | 2006-05-31 |
Family
ID=36769922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200410096260XA Pending CN1779558A (en) | 2004-11-25 | 2004-11-25 | Projecting lens set and its reflector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1779558A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105159015A (en) * | 2015-09-21 | 2015-12-16 | 海信集团有限公司 | Lens assembly |
| CN105911802A (en) * | 2016-06-23 | 2016-08-31 | 海信集团有限公司 | Lens assembly and projector |
| JP2017211518A (en) * | 2016-05-26 | 2017-11-30 | 株式会社リコー | Image display unit, image projection unit, and image projection device |
| CN107966781A (en) * | 2017-12-25 | 2018-04-27 | 中国航空工业集团公司洛阳电光设备研究所 | Speculum folding and unfolding and adjusting apparatus in a kind of Clairvoyant type display optical system |
-
2004
- 2004-11-25 CN CNA200410096260XA patent/CN1779558A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105159015A (en) * | 2015-09-21 | 2015-12-16 | 海信集团有限公司 | Lens assembly |
| JP2017211518A (en) * | 2016-05-26 | 2017-11-30 | 株式会社リコー | Image display unit, image projection unit, and image projection device |
| CN105911802A (en) * | 2016-06-23 | 2016-08-31 | 海信集团有限公司 | Lens assembly and projector |
| CN107966781A (en) * | 2017-12-25 | 2018-04-27 | 中国航空工业集团公司洛阳电光设备研究所 | Speculum folding and unfolding and adjusting apparatus in a kind of Clairvoyant type display optical system |
| CN107966781B (en) * | 2017-12-25 | 2020-03-27 | 中国航空工业集团公司洛阳电光设备研究所 | Reflector folding, unfolding and adjusting device in perspective type display optical system |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |