CN101154022A - Housing and projector used for optical part - Google Patents
Housing and projector used for optical part Download PDFInfo
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- CN101154022A CN101154022A CNA200610139393XA CN200610139393A CN101154022A CN 101154022 A CN101154022 A CN 101154022A CN A200610139393X A CNA200610139393X A CN A200610139393XA CN 200610139393 A CN200610139393 A CN 200610139393A CN 101154022 A CN101154022 A CN 101154022A
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Abstract
The invention provides a shell used in an optical component which can prevent dust from entering the inside of the shell used in an optical component and a projecting camera provided with the shell used in an optical component. A parts receiving component (5) is arranged on the outer side of an opening (5A) and is provided with clamping surfaces (534A-534E) of a hole (5341) for assembling a threaded element, and the clamping surfaces are opposite to an operculiform element. The fringe of the side of the opening (5A) of the clamping surfaces (534A-534E) is provided with a rib-shaped object (5321) perpendicularly; when the rib-shaped object (5321) fixes the operculiform element on the parts receiving component (5), the operculiform element is supported and the clamping surfaces (534A-534E) and the opening (5A) are spaced by the rib-shaped object (5321). Therefore, when the operculiform element is fixed on the parts receiving component (5) by a screw thread, the clamping surfaces (534A-534E) and the opening (5A) can be spaced, and dust generated in the hole (5341) can be prevented from entering the shell used in the optical component.
Description
Technical field
The present invention, relate to and placing being directed at a plurality of opticses of incident beam being modulated the optic modulating device that forms optical image corresponding to image information from the emitted light beam of light source, and aforementioned a plurality of opticses are disposed at optical component casing on the predetermined lighting optical axis, and possesses the projector that this optical component casing is arranged.
Background technology
In the past, with regard to known possess light source is arranged, corresponding to image information to the optic modulating device modulated from the emitted light beam of light source and to the light beam modulated carry out the projector of the projecting optical device of projection.In projector so, adopt incident beam is carried out conversion optically, will be directed at the multiple optics of optic modulating device etc. from the emitted light beam of light source, these opticses place and are disposed in the optical component casing.
As optical component casing so, known to the inner setting lighting optical axis, on this lighting optical axis, place the optical component casing (for example, with reference to patent documentation 1) of configuration optics.
At the optical component casing described in the aforementioned patent document 1, for synthetic resin system, possess: have the parts that are used to make optics embed the box of the opening that is formed at inner slot part up and place member and cover the cap-like structure that these parts place the opening of member.Place the top of the sidewall of member at parts, a plurality of stationary planes that are formed with the hole that is used to assemble screw element are set.And, rib uprightly is set along the last ora terminalis of sidewall.And, cap-like structure, stop up aforementioned opening, and, cover stationary plane ground lining parts and place member, by being supported that with this rib screw element is inserted the reduction of fractions to a common denominator and is not formed at corresponding to the hole that places the position in the formed hole of member at parts, and be assemblied in the hole that these parts place member, fix cap-like structure and parts place member.
[patent documentation 1] spy opens the 2005-275090 communique
; in the optical component casing described in the aforementioned patent document 1; because the rib that cap-like structure is supported is arranged at the outside of stationary plane, so in that fixedly cap-like structure is when parts place member, stationary plane is arranged in the optical component casing volume inside.Therefore, the dust that when the cap-like structure screw thread being stopped at parts placing member, produces from the hole, floating in the inside that enters optical component casing, and is attached to optics sometimes.Under situation so, produce the reduction of the briliancy that causes projected image, perhaps this dust is appeared before one's eyes and is the problem of image etc. in projected image.
Summary of the invention
Purpose of the present invention is to provide to prevent that dust from entering inner optical component casing, and possesses the projector of this optical component casing.
Optical component casing of the present invention, incident beam is modulated and a plurality of opticses of forming the optic modulating device of optical image place being directed at corresponding to image information, and aforementioned a plurality of opticses are disposed on the predetermined lighting optical axis from the emitted light beam of light source; It is characterized in that possessing: be formed with and be used for aforementioned a plurality of opticses are placed to place member and be fixed in above-mentioned parts by screw element in the parts of the opening of inside placing member, the cap-like structure that aforementioned opening is sealed; Above-mentioned parts places member, in the outside of aforementioned opening, has subtend in aforementioned cap-like structure and be formed with the stationary plane in the hole of assembling aforementioned threads part; Ora terminalis in the aforementioned open side of aforementioned fixation face uprightly is provided with rib, and it, supports aforementioned cap-like structure when above-mentioned parts places member at fixing aforementioned cap-like structure, and, separate aforementioned fixation face and aforementioned opening.
According to the present invention, between stationary plane and opening ora terminalis, the upright rib of separating stationary plane and opening that is provided with.According to this, because when parts place member,, support cap-like structure by this rib at fixing cap-like structure, separate stationary plane and opening, so can prevent from screw thread is fixing, to enter in the optical component casing from being formed at dust stationary plane, that the hole of assembling screw element produces.
In the present invention, preferred: as when above-mentioned parts being placed the fixing aforementioned cap-like structure of member, between aforementioned fixation face and aforementioned cap-like structure, to form the gap; Aforementioned gap, the outside that places member with above-mentioned parts is connected.
At this, under the situation of the formation that stationary plane and cap-like structure touch, the dust that produces from the hole of stationary plane when the cap-like structure screw thread being fixed in parts placing member is sandwiched between stationary plane and the cap-like structure.Under situation so, in order to dismantle when having opened cap-like structure, to produce this dust sometimes and disperse and open the problem that is attached to optics etc.
With respect to this, in the present invention, because, between stationary plane and cap-like structure, form the gap, so the dust that produces from the hole of stationary plane in fixing at screw thread is piled up in this gap parts being placed member fixedly during cap-like structure.And this gap because be connected with the outside that parts place member, so fixed after parts place member and cap-like structure at screw thread, can be waited with blowing and easily remove these dust.Thereby, can prevent reliably that dust from entering in the optical component casing.
Projector of the present invention, possess: light source, corresponding to the optic modulating device of image information to modulating from the emitted light beam of aforementioned light source, to incident beam carry out optically conversion optics and to the light beam the modulated projecting optical device that carries out projection; It is characterized in that: possess aforesaid optical component casing; Aforementioned optics is disposed in the aforesaid optical component casing.
According to the present invention, can reach the effect same with aforesaid optical component casing.
In addition, be attached to the optics that is disposed in the optical component casing because can prevent dust thus, thus the reduction of the briliancy of formed image can be suppressed, and, can prevent from projected image, to comprise the image deterioration of the image etc. of dust.
Description of drawings
Fig. 1 is the mode chart that the summary of the projector of expression one embodiment of the present invention constitutes.
Fig. 2 is the stereographic map of the optical component casing in the aforementioned embodiments.
Fig. 3 is the stereographic map that the parts in the aforementioned embodiments place member.
Fig. 4 is the sectional view of the optical component casing of the stationary plane in aforementioned embodiments.
Fig. 5 is a sectional view in aforementioned embodiments and optical component casing aforementioned fixation face stationary plane inequality.
The reference numeral explanation
1... projector, 3... projecting lens (projecting optical device), the 5... parts place member, 5A... opening, 6... cap-like structure, 40... light supply apparatus, 41... illumination optics device (optics), 42... look dissociated optical device (optics), 43... relay optics (optics), 45... optical component casing, 61... screw element, 441... liquid crystal panel (optic modulating device), 534A～534E... stationary plane, 5321... rib, the 5341... hole.
Embodiment
Below, based on accompanying drawing one embodiment of the present invention is described.
(1) integral body of projector 1 constitutes
Fig. 1 is the mode chart that the summary of the projector 1 of expression present embodiment constitutes.
The projector 1 of present embodiment, to modulating the formation optical image from the emitted light beam of light source, and the optical image enlarging projection that will form is to the screen (diagram is omitted) corresponding to image information.This projector 1, as be shown among Fig. 1 ground, possess: external shell 2, projecting lens 3 and optical unit 4 etc.
Also have, in Fig. 1, though diagram is omitted, but the space except that projecting lens 3 and optical unit 4 in external shell 2, dispose: the cooling unit that is constituted with cooling fan that projector 1 inside is cooled off etc., to the power supply unit of each member of formation supply capability of projector 1 inside, and the control module that projector's 1 integral body is controlled etc.
External shell 2 is made of institutes such as synthetic resin, as is shown among Fig. 1 ground, forms projecting lens 3 and optical unit 4 etc. to be placed to be disposed at inner integral body roughly rectangular-shaped.This external shell 2, though diagram is omitted, but with end face, front, the back side of distinguishing constituting projector 1, the upper shell that reaches left and right sides face, respectively the bottom surface of constituting projector 1, front, and the lower house at the back side constitute, aforementioned upper shell and aforementioned lower house are fixed with screw element etc. mutually.Also have, external shell 2 is not limited to synthetic resin etc., also can form with other material, for example, also can wait by metal to constitute.
(2) formation of optical unit 4
Optical unit 4 is under the control of aforesaid control module, to from the emitted light beam of light source, handles optically and forms the unit of the optical image (coloured image) corresponding to image information.This optical unit 4, as be shown among Fig. 1 ground, have the plane of extending along the back side of external shell 2 and extending and see roughly L shape along the side of external shell 2.
This optical unit 4, possess: light supply apparatus 40, illumination optics device 41, look dissociated optical device 42, relay optics 43, electro-optical device 44 and these opticses 41～44 are placed the optical component casing 45 that is disposed at inside and with the precalculated position light supply apparatus 40 and projecting lens 3 is supported to fix.
At this,, use Halogen lamp LED, metal halide lamp or high-pressure mercury-vapor lamp as illuminator 401 more.In addition, reverberator 402, in Fig. 1, though constituted with ellipsoidal reflector, also can be with the paraboloid that carries out from illuminator 401 emitted light beams reflecting on almost parallelization ground is constituted.In this case, the parallelization lens are omitted.And then reverberator 402 also can constitute with free-form surface reflector.
The 1st lens arra 412 has the formation of arranging a plurality of lenslets in the face that roughly is orthogonal to lighting optical axis A rectangularly.These lenslets are seen the profile with essentially rectangular shape from lighting optical axis A direction.And these each lenslets will be divided into the multi beam segment beam from the emitted light beam of light supply apparatus 40.
The 2nd lens arra 413 has the formation same with the 1st lens arra 412, has the formation of arranging corresponding to the lenslet of the lenslet of the 1st lens arra 412 rectangularly.The 2nd lens arra 413, have with overlapping lens 415 in the lump, make the picture of each lenslet of the 1st lens arra 412, image in the function of image forming area of the liquid crystal panel described later 441 of electro-optical device 44.
Particularly, be transformed into the roughly each several part light of the rectilinearly polarized light of a kind, finally be overlapped in the image forming area of liquid crystal panel 441 described later by overlapping lens 415 substantially by polarization conversion device 414.In the projector of the liquid crystal panel that has adopted the type that polarized light is modulated because can only utilize the polarized light of a kind, so from the light of the light supply apparatus 40 that sends polarized light at random roughly half can not utilize.Therefore,, will be transformed into the roughly rectilinearly polarized light of a kind, improve utilization ratio at the light of electro-optical device 44 from the ejaculation light of light supply apparatus 40 by adopting polarization conversion device 414.
Look dissociated optical device 42 possesses: 2 dichronic mirrors 421,422 and catoptron 423; To be separated into the coloured light of 3 looks of red (R), green (G), blue (B) from illumination optics device 41 emitted multi beam segment beams by dichronic mirror 421,422.
At this moment, in the dichronic mirror 421 of look dissociated optical device 42, carry out transmission from the red light component and the green light components of the emitted light beam of illumination optics device 41, and blue light components reflects.Blue light by dichronic mirror 421 has carried out reflection reflects with catoptron 423, arrives the liquid crystal panel 441B that blue light is used by field lens 419.This field lens 419 will be paired in the parallel light beam of its central shaft (chief ray) from the 2nd lens arra 413 emitted each several part optical beam transformations.Be arranged at other green light and the field lens 419 of the light incident side of red light the liquid crystal panel 441G, the 441R that use too.
Electro-optical device 44, and synthesizes and forms optical image (coloured image) each coloured light that has carried out modulation respectively to modulating from the coloured light of 3 emitted looks of look dissociated optical device 42 corresponding to image information.
This electro-optical device 44, as be shown among Fig. 1 ground, (liquid crystal panel of using with red light is 441R to possess liquid crystal panel 441 as optic modulating device, the liquid crystal panel of using with green light is 441G, and the liquid crystal panel of using with blue light is 441B), be disposed at 3 light incident side polarization plates 442 of the light beam light incident side of these each liquid crystal panels 441 respectively, be disposed at 3 field angle compensating plates 443 of the light beam emitting side of each liquid crystal panel 441 respectively, be disposed at respectively 3 field angle compensating plates 443 the light beam emitting side 3 emitting side polarization plates 444 and constitute as the cross colour splitting prism 445 of look synthesizing optical device.
To light incident side polarization plates 442, the polarization direction becomes roughly unidirectional each coloured light to carry out incident by polarization conversion device 414 is consistent, and this light incident side polarization plates 442, make among the light beam that shines, only with 414 of polarization conversion devices consistent the roughly unidirectional polarized light in polarization direction of light beam carry out transmission, other light beam is absorbed.This light incident side polarization plates 442 for example, has the formation of having pasted polarization layer on the light-transmitting substrate of sapphire glass or crystal etc.
Field angle compensating plate 443, form film like, to compensating to the phase differential that results between normality light and the unusual light that the birefringence in that this liquid crystal panel 441 takes place under the situation (carrying out the situation of incident with respect to the normal direction of panel face obliquely) of liquid crystal panel 441 causes at the light beam oblique incidence.This field angle compensating plate 443, for having the optically anisotropic body of negative uniaxiality, the predetermined direction of its optic axis in pellicular front, and be orientated by predetermined angle incline ground from this pellicular front direction outside face.
As this field angle compensating plate 443, for example can be so that (TAC Triacetylcellulose) forms discoid compound layer by oriented layer on the transparent support of Denging and constitutes, and can adopt WV film (Fuji Photo Film Co Ltd.'s system) at triacetyl cellulose.
Emitting side polarization plates 444, make 441 emitted from liquid crystal panel, passed through among the light beam of field angle compensating plate 443, only have with the axis of homology of the light beam of light incident side polarization plates 442 mutually the light beam of the polarization direction of quadrature carry out transmission, other light beam is absorbed.
Cross colour splitting prism 445 is to synthesizing from the emitted light modulated of having modulated by every kind of coloured light of emitting side polarization plates 444 and form optical image (coloured image).This cross colour splitting prism 445 forms the plane that 4 right-angle prisms are bonded and sees square shape, at the interface that right-angle prism is bonded each other, forms 2 multilayer dielectric layers.These multilayer dielectric layers, make the coloured light that has passed through to be disposed at the emitting side polarization plates 444 of the side (G coloured light side) of projecting lens 3 subtends carry out transmission, and the coloured light that has passed through remaining 2 emitting side polarization plates 444 (R coloured light side and B coloured light side) is reflected.So, with each light incident side polarization plates 442, each liquid crystal panel 441, each field angle compensating plate 443, and each coloured light of having modulated of each emitting side polarization plates 444 obtains synthetic and forms coloured image.
(3) formation of optical component casing 45
Fig. 2 is the stereographic map of optical component casing 45; Fig. 3 places the stereographic map of member 5 for parts.
As being shown among Fig. 2 and Fig. 3 ground, optical component casing 45 is to form along the back side of external shell 2 to extend, and the roughly member of the case shape of L shape is seen on the plane of extending along the side of external shell 2.This optical component casing 45 possesses: be formed for making each optics 41～44 to be embedded into inner opening 5A up, make section that each optics 41～44 is embedded into slot part 533 (with reference to Fig. 3) by this opening 5A roughly the parts of U shape place member 5; Place the opening 5A of member 5 with these parts of covering and make the light beam of transmission in parts place member 5 be unlikely to drain to outside cap-like structure 6 by opening 5A.These parts place member 5 and cap-like structure 6, for plastic one-body molded product, form by injection-molded moulding.
Place in the member 5 at parts, as be shown among Fig. 2 and Fig. 3 ground, integraty ground forms: light supply apparatus 40 is supported the light supply apparatus support sector 51 fixed, and lens maintaining part 52 that projecting lens 3 is kept and the parts that place optics 41～44 place portion 53.
Light supply apparatus support sector 51, be formed at parts and place a distolateral side of portion 53, possess: the plane of extending in the face that is orthogonal to lighting optical axis A is seen the plate body 511 of essentially rectangular and is extended to a pair of support sector 512 of the light ejaculation direction base end side of light supply apparatus 40 from the both ends of this plate body 511.At plate body 511, be formed for making the opening 513 of seeing essentially rectangular from the plane that light supply apparatus 40 emitted light beams incide illumination optics device 41.Then, light supply apparatus 40, by the outstanding cover side support sector 4041 of along continuous straight runs respectively in the fixing both sides from the lampshade 404 that places this light supply apparatus 40 of aforementioned support sector 512 screw threads, be installed on parts and place portion 53, be disposed at make outgoing beam the central shaft unanimity in the position of lighting optical axis A.
Place the top of the sidewall 532 of portion 53 at parts, form 5 stationary plane 534A, 534B, 534C, 534D, 534E.Particularly, stationary plane 534A is being positioned at the slot part 533A that inserts the 1st lens arra 412, and inserts among the sidewall 532 between the slot part 533B of the 2nd lens arra 413, and the top of sidewall 532A forms; Stationary plane 534B then is formed at the top of sidewall 532B.
And stationary plane 534C is formed at the slot part 533C that is positioned at insertion dichronic mirror 422, and the top of the sidewall 532A between the slot part 533D of insertion light incident side lens 431; Stationary plane 534D is formed at the top of sidewall 533A in the outside of the slot part 533E that is arranged at the catoptron 423 that insertion reflects blue light.And then stationary plane 534E is formed at the top of sidewall 533B in the outside of the slot part 533F that is arranged at the catoptron 434 that insertion reflects red light.
At each stationary plane 534A～534E, though carry out aftermentioned in detail, but form the hole 5341 of assembling screw element 61, the tapping screw thread spare of this screw element 61 for being used for cap-like structure 6 is fixed, cap-like structure 6 is fixed in parts and places portion 53 at the stationary plane 534A of these 5 places～534E screw thread.Then, in the present embodiment, in the inboard of these stationary planes 534A～534E (opening 5A side), rib 5321 uprightly is set, it is supported cap-like structure 6, and stationary plane 534A～534E and opening 5A is separated parts being placed portion 53 fixedly during cap-like structure 6.
Cap-like structure 6 forms the shape roughly the same with opening 5A, in the position corresponding to stationary plane 534A～534E of cap-like structure 6, forms subtend face 62A, 62B, 62C, 62D, 62E respectively.At these each subtend face 62A～62E,, form screw element 61 and insert logical hole 621 (with reference to Fig. 4 and Fig. 5) in position corresponding to hole 5341.Then, cap-like structure 6, by occlusion of openings 5A cover under the state that parts place portion 53,621 insert screw elements 61 in the hole, assemble this screw element 61 in the hole 5341, place portion 53 and be fixed in parts.At this moment, by rib 5321, the opening 5A that stationary plane 534A～534E and parts place portion 53 is opened by isolated.
Below, be example with stationary plane 534A, describe about the concrete formation of stationary plane 534A～534E and rib 5321.
Fig. 4 is the sectional view of the optical component casing 45 of stationary plane 534A.
As be shown among Fig. 2～Fig. 4 ground, place portion 53 at parts, the stationary plane 534A on the top of the sidewall 532A between slot part 533A that is arranged at insertion the 1st lens arra 412 and the slot part 533B that inserts the 2nd lens arra 413, inboard at sidewall 532A, form to such an extent that the plane is seen roughly and given prominence to semicircle shape, at this stationary plane 534A, form hole 5341.And, along the inboard of stationary plane 534A, that is, rib 5321 uprightly being set along the ora terminalis of the opening 5A of stationary plane 534A, this rib 5321 is supported cap-like structure 6, and with stationary plane 534A with opening 5A is isolated opens.
In the position corresponding to stationary plane 534A of cap-like structure 6, as be shown among Fig. 2 and Fig. 4 ground, form to the junction surface 63 of carrying out bending near the side of stationary plane 534A, engaging with the rib 5321 of the inboard that uprightly is arranged at this stationary plane 534A.This junction surface 63 sees that by extending and form the plane from the sagging joined wall 631 of cap-like structure 6 with from the lower end edge horizontal direction of joined wall 631 roughly the subtend face 62A of semicircle shape is constituted.This subtend face 62A forms: parts are being placed portion 53 when fixing cap-like structure 6, forming a little gap about 1～2mm with stationary plane 534A.And,,, form hole 621 in position corresponding to the hole 5341 of stationary plane 534A at this subtend face 62A.
So, owing to junction surface 63 is set, can engage, easily position and make cap-like structure 6 place portion 53 with respect to parts by the rib 5321 that makes this junction surface 63 and uprightly be arranged at the inboard of stationary plane 534A at cap-like structure 6.; cap-like structure 6 is being coated on after parts place portion 53; by screw element 61 is inserted into hole 621; and this screw element 61 is assembled to hole 5341; place portion 53 though cap-like structure 6 has been fixed to parts, this moment, place the hole 5341 of portion 53 from being formed at plastic parts; because the screw element 61 of assembling tapping screw thread spare, produce the fine dust of fibrous, dirt shape etc.
At this, the 1st lens arra 412 and the 2nd lens arra 413 generally form essentially rectangular, parts are being placed portion 53 when having fixed cap-like structure 6, the space that roughly airtight the 1st lens arra 412 and the 2nd lens arra are 413.Therefore, entered the dust in this space from the stationary plane 534A stationary plane 534B described later of the same formation of stationary plane 534A (and with), because be enclosed in this space, so in the past at the 1st lens arra 412 and the 2nd lens arra 413, especially easily adhere to dust, the briliancy that produces formed image sometimes reduces, comprises the problem of the image deterioration of the image of dust etc. in projected image.
With respect to this, in the optical component casing 45 of present embodiment, because inboard at stationary plane 534A, rib 5321 uprightly is set, its at fixing cap-like structure 6 when parts place portion 53, cap-like structure 6 is supported, and stationary plane 534A and opening 5A are separated, enter in the optical component casing 45 so can prevent dust.Thereby, can prevent existing, because dust is attached to the reduction of the briliancy of the 1st lens arra 412 and the 2nd lens arra 413 caused formation images, and, can prevent from projected image, to comprise the image deterioration of the image etc. of dust.
Also have, be arranged at stationary plane 534B, the rib 5321 that is arranged at the inboard of stationary plane 534B, and the subtend face 62B of the position of subtend in the horizontal direction with this stationary plane 534A, also with these stationary planes 534A, rib 5321, and subtend face 62A similarly constitute.
Fig. 5 is the sectional view of the optical component casing 45 of stationary plane 534C.
As the stationary plane 534C with Fig. 2 and Fig. 5 is shown in the example, at subtend face 62C～62E corresponding to the formed cap-like structure 6 in the position of each stationary plane 534C～534E, not to stationary plane 534C～534E lateral bending song, and from cap-like structure 6 relative with opening 5A to part of horizontal ground extend.And, with aforesaid stationary plane 534A and subtend face 62A similarly, between each stationary plane 534C～534E and subtend face 62C～62E, also cap-like structure 6 is being fixed under the state that parts place portion 53, form the gap of a little, this gap is communicated in the outside of optical component casing 45.
According to projector 1, can play following effect as above present embodiment.
Promptly, in the optical component casing 45 of present embodiment, because inboard at stationary plane 534A～534E, rib 5321 uprightly is set, its at fixing cap-like structure 6 when parts place portion 53, cap-like structure 6 is supported and stationary plane 534A～534E and opening 5A are separated, so at fixing cap-like structure 6 when parts place portion 53, by this rib 5321, stationary plane 534A～534E and opening 5A can be separated, can prevent that dust from entering in the optical component casing 45.
Also have, this effect, utilization can be especially effective with lower member, this member is: the sidewall 532A between slot part 533A that is formed at insertion the 1st lens arra 412 and the slot part 533B that inserts the 2nd lens arra 413, the top of 532B, promptly, be formed at existing causing easily and make dust be attached to stationary plane 534A, the 534B of the position of problem the 1st lens arra 412 and the 2nd lens arra 413, image deterioration etc., and uprightly be arranged at the rib 5321 of the inboard of this stationary plane 534A, 534B.
At this, under the situation of the formation that stationary plane 534A～534E and subtend face 62A～62E touch mutually, when cap-like structure 6 being fixed in parts placing portion 53 from the hole 5341 dust that produce, be clipped between stationary plane 534A～534E and the subtend face 62A～62E.Under situation so, be created in sometimes in order to dismantle when having opened cap-like structure 6 dust and disperse and be attached to the problem of optics 41～44 grades.
With respect to this, in the optical component casing 45 of present embodiment, because between stationary plane 534A～534E and subtend face 62A～62E, form the gap of a little, so 5341 dust that produce are piled up in this gap from the hole in screw thread is fixing.And this gap because be connected with the outside of optical component casing 45, so fixed after parts place member 5 and cap-like structure 6 at screw thread, can be waited with blowing and easily remove these dust.Thereby, can prevent reliably that dust from entering the inside of optical component casing 45.
Because position corresponding to stationary plane 534A at cap-like structure 6, the junction surface 63 of carrying out bending and engaging with the rib 5321 of the inboard that uprightly is arranged at this stationary plane 534A near the side of stationary plane 534A is set, so, can make cap-like structure 6 place portion 53 and easily position with respect to parts by this junction surface 63 is engaged in rib 5321.
In the projector 1 of present embodiment, can prevent that the dust that screw thread produces in fixing from entering inner optical component casing 45 because adopted, be attached to optics 41～43 so can prevent dust, can prevent the reduction of the briliancy of formed image, and, can prevent from projected image, to comprise the image deterioration of the image etc. of dust.
(4) distortion of embodiment
Also have, be used to implement the formation, method of the best of the present invention etc., though disclosed by above record, the present invention is not to be defined in this.Promptly, the present invention, though relating generally to specific embodiment illustrates especially and illustrates, but in the scope that does not break away from technological thought of the present invention and purpose, for above-described embodiment, on shape, quantity, other detailed formation, the technician can all in addition distortion.
Thereby, carried out the record that limits to being disclosed in above-mentioned shape, quantity etc., be for understanding of the present invention is recorded and narrated easily and illustratively, the present invention is not limited, so the record of the title of the member outside those part or all the qualification of qualification of shape, quantity etc. is included among the present invention.
That is, in aforementioned embodiments,, stationary plane 534A～534E is touched mutually with subtend face 62A～62E, also can not form the gap though between stationary plane 534A～534E and subtend face 62A～62E, form the gap.
And, form the position of stationary plane 534A～534E, be not limited to the position of aforementioned embodiments, also can be formed at suitable position on the top of sidewall 532.
And, in aforementioned embodiments, though place the 5 places formation stationary plane 534A～534E of portion 53 at parts, cap-like structure 6 is fixed in parts by this 5 place and places portion 53, as long as place portion 53 but cap-like structure 6 can be fixed in parts, the quantity of stationary plane and position can suitably be set.
In aforementioned embodiments, though adopted tapping screw thread spare as screw element 61, as screw element 61, also 5341 tapping internal threads in the hole in advance, and adopt external thread corresponding to this internal thread.
In aforementioned embodiments, though only lifted the projector 1 that has adopted 3 liquid crystal panel 441R, 441G, 441B, but optical component casing 45 of the present invention, also can be applied to only use the projector of 1 liquid crystal panel, with the projector of 2 liquid crystal panels, perhaps, used more than or equal in the projector of 4 liquid crystal panels.
In aforementioned embodiments,, also can adopt light entrance face and light emergence face to be liquid crystal panel with the reflection-type of one side though adopted the liquid crystal panel of light entrance face and light emergence face transmission-type inequality.
In aforementioned embodiments, though adopted liquid crystal panel as optic modulating device, optical component casing 45 of the present invention also can be used in the projector that has used liquid crystal such as the device optic modulating device in addition that adopts micro mirror.
And then, in aforementioned embodiments, for example understand the example that carries out the pre-projecting type projector 1 of projection from the direction of view screen, but optical component casing of the present invention 45 can be applied to also carry out the back projecting projector of projection from the opposition side of view screen direction.
The present invention places member and cap-like structure constitutes, fix by screw element in their optical component casing and can utilize possessing optics to be placed in the parts of inside, can especially be suitable in the projector.
Claims (3)
1. optical component casing, it places a plurality of opticses, aforementioned a plurality of opticses are disposed on the predetermined lighting optical axis, and aforementioned a plurality of opticses will be directed at from the emitted light beam of light source and corresponding to image information incident beam be modulated and formed the optic modulating device of optical image; This optical component casing is characterised in that to possess:
Be formed be used for aforementioned a plurality of opticses place in the parts of the opening of inside place member and
Be fixed in above-mentioned parts by screw element and place member, the cap-like structure that aforementioned opening is sealed;
Above-mentioned parts places member, in the outside of aforementioned opening, has subtend in aforementioned cap-like structure and be formed with the stationary plane in the hole of assembling aforementioned threads part;
Ora terminalis in the aforementioned open side of aforementioned fixation face uprightly is provided with rib, and it is supported aforementioned cap-like structure, and separate aforementioned fixation face and aforementioned opening when aforementioned cap-like structure being fixed in above-mentioned parts placing member.
2. according to the described optical component casing of claim 1, it is characterized in that:
Above-mentioned parts being placed member when having fixed aforementioned cap-like structure, between aforementioned fixation face and aforementioned cap-like structure, be formed with the gap;
Aforementioned gap, the outside that places member with above-mentioned parts is connected.
3. projector, it possesses: light source, corresponding to the optic modulating device of image information, incident beam is carried out the optics of conversion and the projecting optical device that the light beam of being modulated is carried out projection optically to modulating from the emitted light beam of aforementioned light source; It is characterized in that:
Possess claim 1 or 2 described optical component casings;
Aforementioned optics is disposed in the aforementioned optical component casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610139393XA CN101154022A (en) | 2006-09-27 | 2006-09-27 | Housing and projector used for optical part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200610139393XA CN101154022A (en) | 2006-09-27 | 2006-09-27 | Housing and projector used for optical part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101154022A true CN101154022A (en) | 2008-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200610139393XA Pending CN101154022A (en) | 2006-09-27 | 2006-09-27 | Housing and projector used for optical part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101154022A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614861B (en) * | 2009-08-12 | 2013-01-02 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Fixing support body for fixing reflector in injection-molded mirror canal |
-
2006
- 2006-09-27 CN CNA200610139393XA patent/CN101154022A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101614861B (en) * | 2009-08-12 | 2013-01-02 | 中国航空工业第一集团公司北京长城计量测试技术研究所 | Fixing support body for fixing reflector in injection-molded mirror canal |
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