CN208110241U - A kind of bonding prism assemblies and projection light machine with the air gap - Google Patents
A kind of bonding prism assemblies and projection light machine with the air gap Download PDFInfo
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- CN208110241U CN208110241U CN201820625119.1U CN201820625119U CN208110241U CN 208110241 U CN208110241 U CN 208110241U CN 201820625119 U CN201820625119 U CN 201820625119U CN 208110241 U CN208110241 U CN 208110241U
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Abstract
The utility model discloses a kind of bonding prism assemblies and projection light machine with the air gap, bonding prism assemblies with the air gap include prism and at least a piece of lens, one face of one face of the lens and the prism has the air gap in the region that light beam passes through between the lens and the prism after bonding by bonding in optical path periphery or two sides mode for dispensing glue.The bonding prism assemblies with the air gap are provided in projection light machine.The utility model overcomes cemented prism component light transmittance with the bonding prism assemblies of the air gap and is gradually reduced, the defect that the adhesion strength of glue gradually decreases, compared to common separate prism component, the utility model prism assemblies reduce the size in space between eyeglass and prism, on reducing whole projection light machine volume advantageously；The utility model prism assemblies reduce the difficulty of processing of actual illumination system, easily controllable cost；The utility model is easier to obtain preferable design result, achievees the effect that optimize illumination system efficiency.
Description
Technical field
The utility model relates to projection light machine technical fields, and in particular to a kind of bonding prism assemblies with the air gap and
Projection light machine.
Background technique
The projection light machine of the prior art mainly has following four scheme when constituting even photosystem and focusing system：
The first, adds the mode of common eyeglass to carry out projecting light path's design, under normal conditions using discrete common prism
For the combination of one or more pieces discrete lens and discrete prism or prism group；
In this scheme discrete eyeglass and prism combination so that projection light machine corresponding position have biggish volume,
So that projection light machine complete machine will not have advantage in terms of size, and since number of lenses increases, whole build-up tolerance increases,
It is unfavorable for the control of quality when projection light machine volume production.
Second, as shown in patent CN203811978U, using a compensating prism comprising two curved surfaces as light modulation
Device, the free curved surface prism that eyeglass in the first above-mentioned scheme and compensating prism are made of one；
The volume of optical modulator is big in this scheme, and free curved surface prism is difficult to make, and it is whole to have raised projection light machine
Machine cost is only the reduction of optical element quantity compared to the first scheme, and projection light machine volume can not be reduced, therefore
This scheme is in terms of cost and projection light machine volume without advantage；
The third, it is equally using freedom that as shown in patent CN203838464U, this scheme is similar to second scheme
The scheme of curved surface prism, compares second scheme, and this scheme increases being all-trans in a light compensating prism in the optical path
It penetrates, to reduce the size of compensating prism；
This scheme takes advantage in terms of overall volume, but since the curved surface that can be used for carrying out optical path optimization is less,
Cause the freedom degree of design smaller, it is difficult to reach suitable light modulation effect, design difficulty is higher while being difficult to have reached
Overall efficiency；
4th kind, by prism and common plano-convex lens or plano-concave lens directly without the air gap gluing, form cemented prism；
This scheme, since viscose glue is located on light-path, can make light pass through adhesive-layer in the biggish situation of luminous flux
When generate energy loss, and the heat resistance of viscose glue is all limited, and will generate chemistry under the action of photo-thermal once for a long time
Property changes, and leads to the risk that light transmittance declines and adhesion strength reduces, and increase adhesive surface falls off.
Utility model content
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide a kind of band the air gap
Bonding prism assemblies and projection light machine, overcome prior art projection light machine separate prism component to cause projection light machine volume excessive
Defect, the defect that integrated prism assemblies cause projection light machine cost excessively high, cemented prism component may cause light transmittance decline
And the defect that adhesion strength reduces.
Used technical solution is the utility model to solve above-mentioned technical problem：
A kind of bonding prism assemblies with the air gap, including prism and at least a piece of lens, a face of the lens
A face with the prism in optical path periphery or two sides mode for dispensing glue by bonding, the lens and the rib after bonding
There is the air gap in the region that light beam passes through between mirror.
Embodiment according to the present utility model, the lens are set as plano-convex lens or plano-concave lens.
Embodiment according to the present utility model, the air gap are set as 0.05~0.5mm.
Embodiment according to the present utility model, the lens and the prism constitute TIR prism component.
Embodiment according to the present utility model, the lens and the prism constitute RTIR prism assemblies.
A kind of projection light machine is provided with the bonding prism assemblies with the air gap as described above in the projection light machine.
Embodiment according to the present utility model, the projection light machine include light-source system, colimated light system and combined optical system.
Implement the technical solution of the utility model, has the advantages that：Bonding of the utility model with the air gap
Prism assemblies, with cemented prism component advantage having the same, and further overcome cemented prism component light transmission in volume
Rate is gradually reduced, the defect that the adhesion strength of glue gradually decreases, and compared to common separate prism component, the utility model is between air
The bonding prism assemblies of gap reduce the size in space between eyeglass and prism, more have on reducing whole projection light machine volume excellent
Gesture；The utility model reduces the difficulty of processing of actual illumination system with the bonding prism assemblies of the air gap, it is easily controllable at
This；The utility model is easier to obtain preferable design result, achievees the effect that optimize illumination system efficiency.
Detailed description of the invention
The utility model is specifically described below with reference to attached drawing and in conjunction with example, the advantages of the utility model and realization
Mode will be more obvious, and wherein content shown in attached drawing is only used for the explanation to the utility model, without constituting to this reality
With it is novel in all senses on limitation, in the accompanying drawings：
Fig. 1 is the utility model first embodiment schematic diagram；
Fig. 2 is bonding prism assemblies schematic diagram of the utility model first embodiment with the air gap；
Fig. 3 is the utility model second embodiment schematic diagram；
Fig. 4 is bonding prism assemblies schematic diagram of the utility model second embodiment with the air gap；
Fig. 5 is the utility model 3rd embodiment schematic diagram；
Fig. 6 is bonding prism assemblies schematic diagram of the utility model 3rd embodiment with the air gap.
Specific embodiment
Bonding prism assemblies of the utility model with the air gap, including prism and at least a piece of lens, the lens
One face of one face and the prism by being bonded in optical path periphery or two sides mode for dispensing glue, after bonding the lens with
There is the air gap in the region that light beam passes through between the prism.Embodiment according to the present utility model, the lens are set as
Plano-convex lens or plano-concave lens.The air gap is set as 0.05~0.5mm.The lens and the prism constitute TIR
(total internal reflection, total internal reflection) prism assemblies.The lens and the prism constitute RTIR (reflection
Formula TIR) prism assemblies.
The utility model projection light machine is provided with the bonding prism with the air gap as described above in the projection light machine
Component.Embodiment according to the present utility model, the projection light machine include light-source system, colimated light system and combined optical system
Embodiment 1
As depicted in figs. 1 and 2, component 01 includes LED light source, colimated light system and combined optical system, and lens 02 are fly's-eye lens,
Subsequent focus lens group is cooperated to carry out even light action to light beam.Lens 03 and 05 group of lens are combined into focus lens group, wherein lens
05 is the glass lens being bonded on prism 07, guarantees tiny the air gap with prism when bonding, as shown in Fig. 2, general feelings
The air gap is positively retained between 0.05~0.5mm under condition, and by adhesive glue point Position Design outside clear aperature.Plane 04 is
Reflecting piece.Prism 07 and the bonding of prism 08 become TIR prism, and plane 06 is display device surface, and device 09 is projection lens.
The light beam that LED light source collimation and light-integrating subassembly 01 export forms the light beam for possessing homogeneous angular distribution by fly's-eye lens 02.This
The TIR of focus lens group and prism 07 and the composition of prism 08 that the light beam of homogeneous angular distribution is formed through lens 03, lens 05
Uniform angular distribution light beam is converted to the corresponding square being uniformly distributed slightly larger than display device in display device surface by prism
Shape hot spot.Picture shown on display device is finally imaged on required position by projection lens 09.Wherein, in incidence
During TIR prism, light beam passes through the air gap of lens 05 and lens 05 and prism 07 in advance, carries out in prism hypotenuse/facet surfaces anti-
It penetrates, at a certain angle incident display device surface, prism 07 and compensation rib is then passed through by the light beam that display device reflects
Mirror 08, incident projection lens.Each individual unit lattice and display device surface of 02 light incident surface of the present embodiment fly's-eye lens
Meet object-image relation.
Embodiment 2
As shown in Figure 3 and Figure 4, component 01 includes LED light source, colimated light system and combined optical system.Lens 02 are fly's-eye lens,
Even light action is carried out to light beam with subsequent condenser lens and prism cooperation.Lens 03 are condenser lens, lens 04, prism 05 and rib
The bonding of mirror 06 becomes RTIR prism group, and lens 04 as shown above are the glass lens being bonded on prism 05, lens 04 and rib
Tiny the air gap is possessed in the bonding of mirror 05, as shown in figure 4, the air gap is positively retained at 0.05~0.5mm under normal circumstances
Between, and by adhesive glue point Position Design outside clear aperature.Plane 07 is display device surface, and 08 is projection lens.LED light
The light beam that source collimation and light-integrating subassembly 01 export forms the light beam for possessing homogeneous angular distribution by the effect of fly's-eye lens 02.This
After the light beam of homogeneous angular distribution passes through condenser lens 03, the RTIR prism group formed into lens 04, prism 05 and prism 06,
Lens 04 are being entered by the air gap after the total reflection of prism 05, after the curved surface of lens 04 carries out internal reflection, are being penetrated
The air gap, entrance prism 05 again, and by the air gap between two prisms, light beam arrives at display device in the above process
When surface, obtains an optical power detection and be slightly larger than the rectangular light spot of display device.It will finally be shown by projection lens 08
Show that picture shown on device is imaged on required position.Each individual unit lattice and display device surface of fly's-eye lens 02
Meet object-image relation.
Embodiment 3
As shown in Figure 5 and Figure 6, in the utility model embodiment, component 01 includes LED light source, colimated light system and light combination
System.Lens 02 are fly's-eye lens, and subsequent focus lens group is cooperated to carry out even light action to light beam.Lens 03 and lens 05 combine
For focus lens group, wherein lens 05 are the glass lens being bonded on prism 06, and the bonding of lens 04 and prism 05 is possessed carefully
Small the air gap, the air gap is positively retained between 0.05~0.5mm under normal circumstances, and adhesive glue point Position Design is existed
Outside clear aperature.Plane 04 is reflecting piece, and lens 05, prism 06 and prism 07 are bonded as RTIR prism group, and plane 08 is display
Device surface, device 09 are projection lens.The light beam that LED light source collimation and light-integrating subassembly 01 export passes through the work of fly's-eye lens 02
Possess the light beam of homogeneous angular distribution with formation.The light beam of this homogeneous angular distribution penetrates lens 03, reflecting piece 04 and lens 05
And prism 06 combines the focus lens group and RTIR prism group of the composition formed with prism 07, and uniform angular distribution light beam is turned
It is changed to the corresponding rectangular light spot being uniformly distributed and be slightly larger than display device in display device surface.Finally pass through projection lens 09
Picture shown on display device is imaged on required position.Wherein, during incident RTIR prism, light beam leads in advance
The air gap for crossing lens 05 and lens 05 and prism 06, through behind the air gap between prism 06 and two prisms at a certain angle
Incident display surface then enters prism 07 by the light beam that display device reflects, and is totally reflected on 07 inclined-plane of prism
Afterwards, incident projection lens.Each individual unit lattice and display device surface of fly's-eye lens 02 meet object-image relation.
Those skilled in the art do not depart from the essence and spirit of the utility model, can realize this reality there are many deformation scheme
With novel, the above is only the preferably feasible embodiments of the utility model, not thereby limit to the right model of the utility model
It encloses, it is all with the variation of equivalent structure made by the utility model specification and accompanying drawing content, it is both contained in the power of the utility model
Within the scope of benefit.
Claims (7)
1. a kind of bonding prism assemblies with the air gap, it is characterised in that：Including prism and at least a piece of lens, the lens
A face and the prism a face by being bonded in optical path periphery or two sides mode for dispensing glue, the lens after bonding
There is the air gap in the region that light beam passes through between the prism.
2. the bonding prism assemblies according to claim 1 with the air gap, it is characterised in that：The lens are set as plano-convex
Lens or plano-concave lens.
3. the bonding prism assemblies according to claim 1 with the air gap, it is characterised in that：The air gap is set as
0.05~0.5mm.
4. the bonding prism assemblies according to claim 1 with the air gap, it is characterised in that：The lens and the rib
Mirror constitutes TIR prism component.
5. the bonding prism assemblies according to claim 1 with the air gap, it is characterised in that：The lens and the rib
Mirror constitutes RTIR prism assemblies.
6. a kind of projection light machine, it is characterised in that：Band as claimed in claim 1 to 5 is provided in the projection light machine
The bonding prism assemblies of the air gap.
7. projection light machine according to claim 6, it is characterised in that：The projection light machine includes light-source system, collimation system
System and combined optical system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625119.1U CN208110241U (en) | 2018-04-27 | 2018-04-27 | A kind of bonding prism assemblies and projection light machine with the air gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820625119.1U CN208110241U (en) | 2018-04-27 | 2018-04-27 | A kind of bonding prism assemblies and projection light machine with the air gap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208110241U true CN208110241U (en) | 2018-11-16 |
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| CN201820625119.1U Active CN208110241U (en) | 2018-04-27 | 2018-04-27 | A kind of bonding prism assemblies and projection light machine with the air gap |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490720A (en) * | 2018-04-27 | 2018-09-04 | 深圳市安华光电技术有限公司 | A kind of bonding prism assemblies and projection light machine with the air gap |
| CN111487837A (en) * | 2019-01-25 | 2020-08-04 | 舜宇光学（浙江）研究院有限公司 | Miniature projection light engine based on D L P technology |
| WO2020244050A1 (en) * | 2019-06-03 | 2020-12-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
-
2018
- 2018-04-27 CN CN201820625119.1U patent/CN208110241U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108490720A (en) * | 2018-04-27 | 2018-09-04 | 深圳市安华光电技术有限公司 | A kind of bonding prism assemblies and projection light machine with the air gap |
| CN111487837A (en) * | 2019-01-25 | 2020-08-04 | 舜宇光学（浙江）研究院有限公司 | Miniature projection light engine based on D L P technology |
| WO2020244050A1 (en) * | 2019-06-03 | 2020-12-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
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Address after: 518067 3C, 3D, Block CD, Building 7, Xinghua Industrial Building, No. 4, Industrial 6th Road, Huaguoshan Community, Merchants Street, Nanshan District, Shenzhen, Guangdong Province Patentee after: Shenzhen Anhua Photoelectric Technology Co.,Ltd. Address before: 518000 room 201-202, building D, Chuangye No.1, 43 Yanshan Road, Shekou, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ANHUA OPTOELECTRONICS TECHNOLOGY Co.,Ltd. |