CN1697948A - Light source device, and projector - Google Patents
Light source device, and projector Download PDFInfo
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- CN1697948A CN1697948A CNA200480000589XA CN200480000589A CN1697948A CN 1697948 A CN1697948 A CN 1697948A CN A200480000589X A CNA200480000589X A CN A200480000589XA CN 200480000589 A CN200480000589 A CN 200480000589A CN 1697948 A CN1697948 A CN 1697948A
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Abstract
A light source device includes a light-emitting tube and a reflector. The light-emitting tube has a light-emitting portion that generates a light beam by an electric discharge between electrodes, and sealing portions provided on both sides of the light-emitting portion. The light-emitting tube has a sub-reflection mirror that covers substantially a front half of the light-emitting portion. The reflector has a neck portion provided with an insertion hole to which the light-emitting tube is inserted, and a reflecting portion integrally formed with the neck portion and having an ellipsoidal curved reflecting surface that irradiates the light beam emitted by the light-emitting portion to align the light beam in a predetermined direction. The opening diameter of the insertion hole on the side of the reflecting surface is greater than the external diameter of the sub-reflection mirror and within the internal diameter of a valid reflection area of the reflector.
Description
Technical field
The projector that the present invention relates to have the light supply apparatus of luminous tube and reflector and have this light supply apparatus, above-mentioned luminous tube has the illuminating part that carries out Discharge illuminating between electrode and is arranged on the encapsulation of the both sides of this illuminating part; Above-mentioned reflector has the neck shape portion of the patchhole that is formed with this luminous tube of insertion and makes from above-mentioned illuminating part emitted light beams towards certain orientation as one man the reflecting part of the reflecting surface of the oval calotte shape of ejaculation forwards with this integrally formed having of neck shape portion.
Background technology
In the past, utilized the light beam that penetrates from light source according to image information modulation and the projector of enlarging projection optical image, such projector is applied to demonstration in the meeting etc. with personal computer.In addition, in recent years, the needs according to the excessive picture of coming round in family is seen a film etc. are used for the home theater purposes with such projector.
As the light supply apparatus that projector uses, known have the luminous tube of discharge-types such as metal halide lamp or high-pressure mercury-vapor lamp and reflector are received into light supply apparatus in lampshade etc. integratedly.
If high-pressure mercury-vapor lamp for example, then luminous tube have a pair of tungsten system of enclosing distance to a declared goal at interval and disposing electrode, mercury, rare gas and a spot of halogen illuminating part and be arranged on the metal forming of insertion and the molybdenum system that electrode is electrically connected of both sides of this illuminating part and the encapsulation (sealing) that encapsulates with glass material etc.
Reflector possesses: be formed with the neck shape portion of the patchhole that inserts luminous tube and make the reflecting part of the reflecting surface of the oval calotte shape that as one man penetrates from the illuminating part emitted light beams towards certain orientation with this integrally formed having of neck shape portion.
During with such luminous tube and the integrated formation of reflector, with the encapsulation of luminous tube insert reflector patchhole, adjust the position luminous tube be positioned at after the assigned address of reflector inside, by being filled into the inorganic adhesive of silica and alumina series in patchhole and the encapsulation from the radicle of patchhole and solidifying, luminous tube can be fixed in the reflector.
Here, if the gap of patchhole and encapsulation is too little, just be difficult to fill inorganic adhesive, on the other hand, if the gap is too big, inorganic adhesive will flow out from the gap and spill on the reflecting surface of reflector.
Therefore, former motion form narrow and inorganic adhesive can not spill into the structure (spy holds the 2002-62586 communique, the spy holds flat 6-203806 communique) on the reflecting surface in the patchhole of the reflector part adjacent with reflecting surface.
But, in the described technology of above-mentioned prior art document, when the film forming of the reflecting surface that carries out reflector, carry out the film forming of reflecting surface from the reflecting part side of reflector and handle, so, form the material creep of reflecting surface and reflecting surface be formed into till the edge of peristome of patchhole.Therefore, when the injection of carrying out bonding agent was filled, bonding agent just was attached on the reflectance coating that forms at the edge of the peristome of patchhole easily, thereby will corrode reflecting surface.
Purpose of the present invention aims to provide light supply apparatus and the projector that corrosion can not taken place the reflecting surface of reflector by the inorganic adhesive that uses when being fixed to luminous tube in the reflector.
Summary of the invention
Light supply apparatus of the present invention possesses: have the illuminating part that carries out Discharge illuminating between electrode and be arranged on the luminous tube of encapsulation of the both sides of this illuminating part, with have the neck shape portion that is formed with the patchhole that can insert this luminous tube and make from above-mentioned illuminating part emitted light beams towards certain orientation the reflector of reflecting part of the reflecting surface of the oval calotte shape that as one man forwards penetrates with this integrally formed having of neck shape portion, it is characterized in that: above-mentioned luminous tube is provided with its front side secondary speculum of half covering roughly; Above-mentioned reflector has the stage portion that forms between the periphery edge of the reflecting surface side opening portion end of above-mentioned patchhole and this reflecting surface; The external diameter of above-mentioned stage portion is bigger than the external diameter of above-mentioned secondary speculum, and is in the inboard by the internal diameter in the usable reflection zone of the above-mentioned reflector of the outer peripheral face decision of the front side focal position of above-mentioned reflector and above-mentioned secondary speculum; Above-mentioned stage portion has the part that does not form described reflecting surface by film forming on the border with above-mentioned usable reflection zone.
In the present invention, preferably, above-mentioned stage portion cuts into section as the interface portion with the inner peripheral surface of above-mentioned reflecting surface and above-mentioned patchhole and is the depression of L shape and forms; The side of this stage portion and the handing-over of above-mentioned reflecting surface is set to not form by film forming the part of above-mentioned reflecting surface.
According to the present invention, utilization has not the stage portion that forms the part of reflecting surface by film forming to be isolated the one-tenth membrane portions of reflecting surface with patchhole, so, when filling bonding agent in patchhole, can prevent that bonding agent from contacting with the one-tenth membrane portions of reflecting surface, thereby can not damage reflecting surface.
In addition, because it is adjacent with the side and the reflecting surface of the stage portion of the medial surface almost parallel of patchhole, so, when making the film forming of reflecting surface handle direction to be the optical axis direction of elliptical reflector, the side of this stage portion just becomes the face of handling the direction almost parallel with this film forming, thereby when the film forming of carrying out reflecting surface is handled, can prevent that film forming is carried out in the side of this stage portion to be handled, and will isolate, thereby can prevent from reliably reflecting surface is caused damage to bonding agent and reflecting surface that patchhole is filled.
Projector of the present invention has light supply apparatus, the light beam that penetrates from this light supply apparatus according to image information modulation forms the projecting optical device of the optical image that the optic modulating device of optical image and enlarging projection form by this optic modulating device, it is characterized in that: above-mentioned light supply apparatus possesses: have the illuminating part that between electrode, carries out Discharge illuminating and be arranged on this illuminating part both sides encapsulation luminous tube and have the neck shape portion that is formed with the patchhole that can insert this luminous tube and make from above-mentioned illuminating part emitted light beams towards certain orientation the reflector of reflecting part of the reflecting surface of the oval calotte shape that as one man forwards penetrates with this integrally formed having of neck shape portion; Above-mentioned luminous tube is provided with its front side secondary speculum of half covering roughly; Above-mentioned reflector has the stage portion that forms between the periphery edge of the reflecting surface side opening portion end of above-mentioned patchhole and this reflecting surface; The external diameter of above-mentioned stage portion is bigger than the external diameter of above-mentioned secondary speculum, and is in the inboard by the internal diameter in the usable reflection zone of the above-mentioned reflector of the outer peripheral face decision of the front side focal position of above-mentioned reflector and above-mentioned secondary speculum; Above-mentioned stage portion has the part that does not form reflecting surface by film forming on the border with above-mentioned usable reflection zone.
According to the present invention, as mentioned above, can prevent the reflector damage of the reflecting part of reflector, can not influence the light quantity of outgoing beam, so, the projector of the projected image of the high image quality that can obtain to provide bright.
Description of drawings
Fig. 1 is the schematic diagram of structure of optical system of the projector of expression embodiments of the invention 1;
Fig. 2 is the summary stereogram of structure of the light supply apparatus of expression the foregoing description;
Fig. 3 is the profile of structure of the light supply apparatus of expression the foregoing description;
Fig. 4 is the schematic diagram that is used to illustrate the effect that the light beam of the light supply apparatus of the foregoing description penetrates;
Fig. 5 is the profile of structure of the elliptical reflector of expression the foregoing description;
Fig. 6 is the profile of structure of the elliptical reflector of expression the foregoing description;
Fig. 7 is the profile of structure of the elliptical reflector of expression embodiments of the invention 2;
Fig. 8 is the profile of structure of the elliptical reflector of expression embodiments of the invention 3;
Fig. 9 is the profile of structure of the elliptical reflector of expression embodiments of the invention 4;
Figure 10 is the profile of structure of the elliptical reflector of expression embodiments of the invention 5;
Figure 11 is the profile of structure of the elliptical reflector of expression embodiments of the invention 6;
Figure 12 is the profile of structure of the elliptical reflector of expression embodiments of the invention 7;
Figure 13 is the profile of structure of the elliptical reflector of expression embodiments of the invention 8;
Figure 14 is the profile of structure of the elliptical reflector of expression embodiments of the invention 9.
Concrete form of implementation
Fig. 1 is the schematic diagram of optical system of the projector 1 of expression embodiments of the invention, projector 1 forms optical image and the enlarging projection optical device to the screen according to the light beam that image information modulation is penetrated from light source, have the light source lamp unit 10 as light supply apparatus, even lamp optical system 20, color separation optical system 30, relay optical system 35, Optical devices 40 and projection optical system 50, constitute the optical element of optical system 20,30,35, be positioned and adjust and be accommodated in the light guide (light guide way) 2 of the lighting optical axis A that is set with appointment.
Light source lamp unit 10 makes from illuminator 11 emitted light beams towards certain orientation as one man and forwards penetrates, and with Optical devices 40 illuminations, has illuminator 11, elliptical reflector 212, secondary speculum 13 and parallelization concavees lens 14, and the back describes in detail.
And, make it to penetrate the direction unanimity from illuminator 11 emitted light beams by elliptical reflector 212 and forwards penetrate as converging light at the device front side, form directional light by parallelization concavees lens 14, penetrate to even lamp optical system 20.
Evenly thereby lamp optical system 20 is will be divided into a plurality of segment beams from the light beam that light source lamp unit 10 penetrates to make the uniform optical system of illumination in the face of field of illumination, has the 1st lens arra the 21, the 2nd lens arra 22, PBS array 23 and overlapping lens 24 and speculum 25.
The 1st lens arra 21 has the function of cutting apart optical element as the light beam that will be divided into a plurality of segment beams from the light beam that illuminator 11 penetrates, have in the face that intersects vertically with lighting optical axis A and be arranged in rectangular a plurality of lenslets, the contour shape of each lenslet is set at and forms and the shape of the image forming area of the liquid crystal panel 42R, the 42G that constitute the described Optical devices 40 in back, 42B similar shapes roughly.
The 2nd lens arra 22 is optical elements of a plurality of segment beam optically focused that will be cut apart by above-mentioned the 1st lens arra 21, the same with the 1st lens arra 21, in the face that intersects vertically with lighting optical axis A, have and be arranged in rectangular a plurality of lenslets, but, owing to is purpose, so the contour shape of each lenslet needn't be corresponding with the shape of the image forming area of liquid crystal panel 42R, 42G, 42B with optically focused.
PBS array 23 is to make the polarization direction of the each several part light beam of being cut apart by the 1st lens arra 21 become the polarization conversion device of the rectilinearly polarized light of 1 direction.
This PBS array 23 has alternately to be arranged with respect to the polarization separating film of lighting optical axis A tilted configuration and the structure of speculum, not shown.Polarization separating film sees through the P polarised light light beam that is included in the each several part light beam and the polarised light light beam of the side in the S polarised light light beam, and reflects wherein the opposing party's polarised light light beam.The wherein the opposing party's who is reflected polarised light light beam bends by speculum, promptly penetrates along the direction of lighting optical axis A to the ejaculation direction of above-mentioned 1 side's polarised light light beam.Arbitrary light beam in the polarised light light beam that penetrates all carries out polarisation transformation by the phase difference film on the light beam outgoing plane that is arranged on PBS array 23, makes the polarization direction unanimity of all polarised light light beams.By using such PBS array 23, can make the light beam that penetrates from illuminator 11 become the polarised light light beam of 1 direction, so, can improve the utilization rate of the light source light of in Optical devices 40, utilizing.
Overlapping lens 24 be make through a plurality of segment beam optically focused of the 1st lens arra the 21, the 2nd lens arra 22 and PBS array 23 and on the image forming area of liquid crystal panel 42R, 42G, 42B overlapping optical element.In this example, the light incident side end face that these overlapping lens (concentrator) the 24th, light beam see through the zone is plane and the emitting side end face planar non-spherical lens that is hyperbolic, still, also can use spherical lens.
The light beam that penetrates from overlapping lens 24 bends by speculum 25, penetrates to color separation optical system 30.
Color separation optical system 30 comprises 2 dichronic mirrors 31 and 32 and speculum 33, has the function of coloured light that will be separated into 3 looks of red (R), green (G), blue (B) by dichronic mirror 31 and 32 from a plurality of segment beams that even lamp optical system 20 penetrates.
Relay optical system 35 comprises light incident side lens 36, relay lens 38 and speculum 37 and 39, has the function that the blue light that will see through the dichronic mirror 32 that constitutes color separation optical system 30 is directed to Optical devices 40.Why such relay optical system 35 is arranged on the light path of blue light, be because the light path of blue light than the optical path length of other coloured light, is in order to prevent light the utilization rate reduction that causes light such as disperse.In this example, because the optical path length of blue light, so, adopt such structure, still, also can consider to make the structure of the optical path length of red light.
The red light of being separated by above-mentioned dichronic mirror 31 is supplied with Optical devices 40 by after speculum 33 bendings by field lens 41.In addition, the green light of being separated by dichronic mirror 32 is directly supplied with Optical devices 40 by field lens 41.In addition, blue light is supplied with Optical devices 40 by field lens 41 then by the lens 36 that constitute relay optical system 35 and 38 and speculum 37 and 39 optically focused and bending.The field lens 41 of light path prime that is arranged on each coloured light of Optical devices 40 is to be provided with for the parallel light beam of lighting optical axis relatively for the each several part optical beam transformation that will penetrate from the 2nd lens arra 22.
Cross colour splitting prism 43 is that the optical image of each coloured light of each coloured light of penetrating from the emitting side polarizer being modulated and being formed is synthetic and form the optical element of coloured image.This cross colour splitting prism 43 is 4 right-angle prisms to be pasted mutually and the plane that forms is seen and is roughly foursquare prism, forms the dielectric multilayer film on the interface that right-angle prism is pasted mutually.The dielectric multilayer film reflection red light that slightly is a side of X shape, the opposing party's dielectric multilayer film reflect blue light.Red light and blue light bend by these dielectric multilayer films, and be consistent with the direction of advance of green light, thereby 3 coloured light are synthetic.
And the coloured image that penetrates from cross colour splitting prism 43 forms big picture image by projection optical system 50 enlarging projections on the unshowned in the drawings screen.
Light source lamp unit 10 as above-mentioned light supply apparatus can load and unload with respect to light guide way 2, can change when illuminator 11 breaks or reduces because of life-span brightness.
More specifically, this light source lamp unit 10 as shown in Figures 2 and 3, also has lampshade 15 and light cover parts 16 except above-mentioned illuminator 11, elliptical reflector 212, secondary speculum 13 and parallelization concavees lens 14.
In the inside of illuminating part 111, enclosed electrode, mercury, rare gas and a spot of halogen in a pair of tungsten system of internal interval distance to a declared goal configuration, in Fig. 3, omitted.
In the inside of encapsulation 112, insert the metal forming of the molybdenum system that the electrode with illuminating part 111 is electrically connected, utilize glass material etc. to encapsulate.In addition, be connected with metal forming as the lead 113 of contact conductor, this lead 113 extends to the outside of illuminator 11.
And, when being added to voltage on the lead 113, between electrode, discharging, illuminating part 111 is luminous.Not shown in Fig. 3, nickel chromium triangle (heat-resisting) alloy wire etc. is wound on the encapsulation 112 of front side of illuminator 11, when projector's 1 starting, electric current flows through this nichrome wire, can carry out the preheating of illuminating part 111, if be provided with such preheating device, owing to the halogen cycle (Ha ロ ゲ Application サ イ Network Le) that takes place in advance in the illuminating part 111, so, the bright light source lamp 11 of can hurrying up very much.
In neck shape portion 121, form patchhole 123 in central authorities, encapsulation 112 is configured in the center of this patchhole 123.
Reflecting part 122 is to form by the evaporation metal film on the glass face of oval calotte shape, and the reflecting surface of this reflecting part 122 adopts reflect visible light and sees through ultrared cold mirror (cold reflector).
Above-mentioned illuminator 11 is configured in the inside of reflecting part 122, as shown in Figure 4, is configured to make the illuminating part 111 interior interelectrode centres of luminescence to become the 1st focal position L1 of the oval calotte of reflecting part 122.
And when lighting illuminator 11, the light beam that penetrates from illuminating part 111 is by the reflecting surface reflection of reflecting part 122, and becomes the converging light of the 2nd focal position L2 that converges to oval calotte.
In addition, the length dimension of the optical axis direction of elliptical reflector 212 is littler than the length dimension of illuminator 11, and when being installed to illuminator 11 on the elliptical reflector 212, the encapsulation 112 of the front side of illuminator 11 is outstanding from the light beam ejaculation opening of elliptical reflector 212.
By secondary speculum 13 is installed on the illuminating part 111, as shown in Figure 4, to the front side emitted light beams of illuminating part 111 by this pair speculum 13 to elliptical reflector 12 lateral reflections, penetrate from the reflecting part 122 of elliptical reflector 212.
Like this, by using secondary speculum 13, front side emitted light beams to illuminating part 111 reflects rearward, so, even the oval calotte of reflecting part 122 is less, the light beam that penetrates from illuminating part 111 is all penetrated to certain orientation, thereby can reduce the optical axis direction size of elliptical reflector 12.
As shown in Figure 3, lampshade (lamp box) the 15th, section are the plastic integrally formed product of L word shape, comprise horizontal part 151 and vertical component effect 152.
Horizontal part 151 engages with the wall portion of light guide way 2, is to make light source lamp unit 10 hidden in light guide way 2 and the part that light leaks do not take place.In addition, not shown, on this horizontal part 151, be provided with the terminal board that illuminator 11 and external power source are electrically connected, the lead 113 of illuminator 11 is connected with this terminal board.
Vertical component effect 152 is the parts of location of carrying out the optical axis direction of elliptical reflector 212, and in this example, this vertical component effect 152 is fixing relatively with bonding agent etc. the light beam of elliptical reflector 212 to be penetrated the open side leading section.On this vertical component effect 152, the peristome 153 that formation sees through the outgoing beam of elliptical reflector 212.
In addition, on such horizontal part 151 and vertical component effect 152, form projection 154.This projection 154 engages with the recess that forms in light guide way 2, and when joint, and the centre of luminescence of illuminator 11 is configured on the lighting optical axis A of light guide way 2.
Light cover parts 16 have heat absorption portion 161 that the cylindrical shell that slightly is the top fuller shape by the peristome 153 of the vertical component effect 152 that is installed in lampshade 15 constitutes, highlightedly be arranged on this heat absorption portion 161 the outside a plurality of fin 162 and at the lens installation portion 163 that the front end of heat absorption portion 161 forms, constitute as the integrated metallic formed products.
Heat absorption portion 161 is the parts that absorb the heat of the air of convection current from illuminator 11 radiation emitted heat and the seal cavity in elliptical reflector 212 and light cover parts 16, and its inner face is carrying out the black anti-corrosive erosion to be handled.The cone shape inclined plane that slightly is of this heat absorption portion 161 parallels with the incline direction of the converging light of elliptical reflector 212, thereby the light beam that penetrates from elliptical reflector 212 is not contacted with the inner face of heat absorption portion 161.
A plurality of fin 162 are the plate bodys that extend in the direction that the optical axis with light source lamp unit 10 intersects vertically, and form the gap that the cooling air is fully passed through between each fin 162.
Lens installation portion 163 is made of the cylinder-like body that the front end in heat absorption portion 161 is provided with highlightedly, makes the parallelization concavees lens 14 of the converging light parallelization of elliptical reflector 12 be installed in this cylindric part.Parallelization concavees lens 14 fixing on lens installation portion 163 can utilize bonding agent etc. to carry out, and be not shown.And when being installed to parallelization concavees lens 14 on the lens installation portion 163, light source lamp unit 10 volume inside are sealed fully, even illuminator 11 breaks, fragment can not disperse to the outside yet.
If illustrate in greater detail the shape of above-mentioned elliptical reflector 212, then this elliptical reflector 212 constitutes patchhole 123 from butt sideswipe face 124 circular cone shape of enlarged diameter gradually, simultaneously, as shown in Figure 5, the patchhole 123 that in neck shape portion 121, forms formation stage portion 212A between the peristome of reflecting surface 124 sides and reflecting surface 124.
And, on the bottom surface sections 212A1 of stage portion 212A and side surface part 212A2, do not form the reflective film material that constitutes reflecting surface 124.
If the outside dimension of secondary speculum 13 is that the outside dimension of stage portion 212A can be set between D2～D3 when being D3 as the internal diameter size in the usable reflection zone of the reflecting surface 124 of the part that penetrates not the light beam that is blocked by the outer peripheral face of secondary speculum 13 in D2, the reflecting surface 124.Consider that from the viewpoint of the protection of reflecting surface 124 appearance and size that preferably makes stage portion 212A is as far as possible near D3.
The circular cone that the internal diameter size D3 in usable reflection zone is formed by the light beam L3 on the border of the light that blocks in the light beam of the 2nd focal position L2 optically focused and by secondary speculum 13 of reflecting surface 124 reflection of elliptical reflector 212, and the diameter of a circle defined of the intersection of the reflecting surface 124 of elliptical reflector 212.The area inside of the circular cone that is formed by this light beam L3 is the part of being blocked by secondary speculum 13 from illuminating part 111 emitted light beams, be the light beam that arrives this area inside of reflecting surface 124, even also can not arrive the part of the 2nd focal position L2 by reflecting surface 124 reflections.Therefore, the reflecting surface 124 of elliptical reflector 212 needn't be formed into the area inside of circle of the internal diameter size D3 in this usable reflection zone, and on the contrary, the outside dimension of stage portion 212A can expand to the internal diameter size D3 in usable reflection zone.
On the other hand, as shown in Figure 6A, in the butt part of patchhole 123, the narrowest 125 inner face from patchhole 123 forms ring-type highlightedly.
This narrowest 125 integrally formed with neck shape portion 121, is the part in required minimal gap with encapsulation 112 of easy insertion illuminator 11.
When formation has the elliptical reflector 212 of such stage portion 212A, model press section (the pressing mold forming section of overshooting shape that will be suitable with stage portion 212A, type is given as security portion) be formed on the model compressive plane of reflecting surface 124, constitute mould, can form by glass material with this mould extrusion molten.
And, when carrying out the shaping of elliptical reflector 212, after forming under the state with the butt side end face of stopping up patchhole 123 at bottom 125A, by this bottom 125A is cut, attrition process, punching form the narrowest 125.
In addition, this routine elliptical reflector 212 has adopted the structure that does not form reflectance coating at the side surface part 212A2 of stage portion 212A, in order not form reflectance coating at side surface part 212A2, when reflecting part 122 is handled the filmogen that constitutes reflecting surface 124, be carried out to the processing of membrane material by optical axis direction from elliptical reflector 212, side surface part 212A2 extends along the optical axis direction of this elliptical reflector 212, so, filmogen can spread on the side surface part 212A2 hardly, does not handle the part that just can form not by film forming formation reflecting surface 124 thereby do not carry out mask etc. on stage portion 212A.Certainly, also can carry out film forming after covering and handle stage portion 212A is all with mask band etc.
When being fixed on illuminator 11 on such elliptical reflector 212, carry out according to following order.
At first, make reflecting surface 124 upwards, elliptical reflector 212 is set on the operation post etc., the encapsulation 112 of illuminator 11 is inserted in the patchhole 123.At this moment, in advance under the state that secondary speculum 13 is installed on the illuminating part 111 with crooked about 180 ° of lead 113, lead 113 also is inserted in the patchhole 123, and reaches the outside from the radicle of patchhole 123.
Secondly, adjusting the position makes the centre of luminescence of the illuminating part 111 of illuminator 11 be positioned at the 1st focal position L1 (referring to Fig. 5) of reflecting surface 124.When the position of carrying out illuminator 11 is adjusted, by ccd video camera etc. the electrode of illuminating part 111 is made a video recording, obtain the center of electrode, the 1st focus of the elliptical reflector 12 on making this center and design by the position adjustment overlaps.
After the adjustment of the position of illuminating part 111 finishes, shown in Fig. 6 B, inorganic adhesive AD is injected in the patchhole 123 from reflecting surface 124 sides.At this moment, the anchor clamps of the tapered of family in the utilization (watering can) etc. inject inorganic adhesive AD, thereby inorganic adhesive can not be attached on the reflecting surface 124.
Behind the end-of-fill of inorganic adhesive AD, utilize maintenance elliptical reflector 212 and illuminators 11 such as anchor clamps, keep this state and make inorganic adhesive AD sclerosis.
According to such embodiment 1, following effect is arranged.
(1) utilize stage portion 212A that the one-tenth membrane portions and the patchhole 123 of reflecting surface 124 are isolated with the side surface part 212A2 that does not form reflecting surface 124, so, when adhesive A D is injected patchhole 123, can prevent that adhesive A D from contacting with the one-tenth membrane portions of reflecting surface 124, thereby can not damage reflecting surface 124.
(2) adjacent and form with the side surface part 212A2 of the stage portion 212A of the medial surface almost parallel of patchhole 123 and reflecting surface 124, so, when the film forming of reflecting surface 124 is handled the optical axis direction of direction employing elliptical reflector 212, the side surface part 212A2 of stage portion 212A becomes the face of handling the direction almost parallel with film forming, when the film forming of carrying out reflecting surface 124 is handled, the side surface part 212A2 that can prevent this stage portion 212A carries out film forming, the adhesive A D and the reflecting surface 124 that are filled in the patchhole 123 are isolated, thereby can prevent reliably that reflecting surface 124 from damaging.
(3) by forming stage portion 212A, when injecting inorganic adhesive AD, even inorganic adhesive AD overflows from patchhole 123, this inorganic adhesive AD also is trapped in stage portion 212A, so, can prevent that inorganic adhesive AD from polluting the reflecting surface 124 of elliptical reflector 212.
(4) because the outside dimension of stage portion 212A is equal to or less than the internal diameter size in usable reflection zone of the reflecting surface 124 of elliptical reflector 212, so, the reflecting properties of elliptical reflector 212 can not influenced.
[embodiment 2]
Below, embodiments of the invention 2 are described.
In the foregoing description 1, patchhole 123 constitutes the tubular of circular cone shape, forms stage portion 212A in its outside.
Therewith relatively, shown in Fig. 7 A and Fig. 7 B, different places are that the elliptical reflector 312 of embodiment 2 is that the peristome of reflecting surface 124 sides of patchhole 323 is the tubular of circular cone shape, and the middle part of patchhole 323 is tubulars cylindraceous.
At the peristome that forms such reflecting surface 124 sides is the tubular of circular cone shape, when the middle part is the patchhole 323 of tubular cylindraceous, on the model compressive plane of the neck shape portion 121 butt sides of mould, projection is set, the diameter of bottom surface that circular cone shape is set on the model compressive plane of reflecting surface 124 sides is greater than the projection of the circular cone shape of the projection of butt side form type compressive plane, by glass material with these projections press fusions, butt side end face in neck shape portion 121 forms recess, after being shaped, cut by part to the bottom 325A of remnants, attrition process, and just can form patchhole 323 by perforate.
According to the elliptical reflector 312 of such embodiment 2,, also has following effect except the effect described in the foregoing description 1.
(5) because the peristome of reflecting surface 124 sides of patchhole 323 is tubulars of circular cone shape, so, inject inorganic adhesive AD from reflecting surface 124 sides easily, thereby, because the middle part of patchhole 323 is cylindric, so, long with the parallel portion of encapsulation 112, thus can make the encapsulation 112 of luminous tube be difficult to from elliptical reflector 312, extract.
[embodiment 3]
Below, embodiments of the invention 3 are described.
In the foregoing description 2, the narrowest the 325 butt side in neck shape portion 121 forms.
Therewith relatively, shown in Fig. 8 A and Fig. 8 B, different places is that the elliptical reflector 412 of embodiment 3 forms the narrowest 425 in reflecting surface 124 sides, the narrowest 425 with reflecting surface 124 between formation stage portion 412A.
Form correspondingly in reflecting surface 124 sides with the narrowest 425, shown in Fig. 8 B, the injection of inorganic adhesive AD is carried out with the same butt side from neck shape portion 121 in the past.
Form so the narrowest 425 o'clock, the combination of the projection of the mould when making the elliptical reflector 312 that forms the foregoing description 2 is put upside down, the big mould of diameter of the projection on the model compressive plane of use reflecting surface 124 sides, thereby with these moulds the glass material of fusion is formed form bottom 425A after, to bottom 425A partly cut, attrition process, form the narrowest 425.
The side surface part that joins with the reflecting surface 124 of stage portion 412A is the same with embodiment 1, is not utilize filmogen to form the part of reflecting surface.
According to the elliptical reflector 412 of such embodiment 3, except the effect of above-mentioned (5), also has following effect.
(6) be positioned at reflecting surface 124 sides by making the narrowest 425, can be with the narrowest 425 reflecting surface 124 side end faces as stage portion 412A, so, can guarantee that the area of stage portion 412A is roomy, thereby can prevent more reliably that inorganic adhesive AD from spilling on the reflecting surface 124.
(7) can guarantee the roomy result of area of stage portion 412A, be to avoid the adhesive A D in the patchhole 123 to contact with reflecting surface 124 reliably, thereby can prevent that reflecting surface 124 from damaging.
[embodiment 4]
Below, embodiments of the invention 4 are described.
In the foregoing description 3, the patchhole 323 that forms on elliptical reflector 412 constitutes the cylindric of certain diameter.
Therewith relatively, shown in Fig. 9 A and Fig. 9 B, the elliptical reflector 512 different places of embodiment 4 are, patchhole 523 is opposite with the situation of embodiment 1, constitute the tubular of the circular cone shape that reduces gradually from the front diameter of the butt sideswipe face 124 of neck shape portion 121.
When forming such elliptical reflector 512, model compressive plane in reflecting surface 124 sides forms the projection suitable with stage portion 412A, model compressive plane in neck shape portion 121 sides is provided with projection and carries out the shaping of the glass material of fusion with these projections, after this to the part of bottom 425A cut, attrition process, form the narrowest 425.
According to the elliptical reflector 512 of such embodiment 4,, also has following effect except the effect of (6) described in the embodiment 3.
(8) patchhole 523 constitutes the tubular of the circular cone shape that increases along with the butt side diameter towards neck shape portion 121, so, carry out the injection operation of neck shape portion 121 butt sides easily.
[embodiment 5]
Below, embodiments of the invention 5 are described.
In the foregoing description 4, any processing is not carried out in the butt side end face of the neck shape portion 121 of the patchhole 523 of circular cone shape.
Therewith relatively, shown in Figure 10 A and Figure 10 B, the elliptical reflector 612 different places of embodiment 5 are, form a plurality of recess 612A in the butt side of the neck shape portion 121 of patchhole 623.
And, when inorganic adhesive AD is injected, also in this recess 612A, fill inorganic adhesive AD in patchhole 623.
According to the elliptical reflector 612 of such embodiment 5, except the effect of above-mentioned (7), (8), also has following effect.
(9) form recess 612A by butt side in neck shape portion 121, fill inorganic adhesive AD and when being fixed to illuminator 11 in the patchhole 623, even inorganic adhesive AD and patchhole 623 inner faces are fully not bonding, also can fill the part of recess 612A with inorganic adhesive AD, like this, inorganic adhesive AD is just mechanically chimeric with recess 612A, so, illuminator 11 relative elliptical reflector 612 rotations can not take place and the position deviation of generation illuminating part 111.
[embodiment 6]
Below, embodiments of the invention 6 are described.
In the foregoing description 5, utilize the recess 612A of the butt side end face 121A from patchhole 623 inner faces to neck shape portion 121 to prevent illuminator 11 rotations.
Therewith relatively, shown in Figure 11 A and Figure 11 B, the elliptical reflector 712 different places of embodiment 7 are to form a plurality of recess 712A at the outer peripheral face 121B of neck shape portion 121.That is, the interior shape of patchhole 523 does not have different with embodiment 4.
When utilization has the rotation of elliptical reflector 712 restriction illuminators 11 of recess 712A at the outer peripheral face 121B of such neck shape portion 121, shown in Figure 11 B, the heat conductivity parts H of the tubular that will be made of thermally-conductive materials is installed on the encapsulation 112 of illuminator 11, simultaneously, form fin F in its butt side, except patchhole 523 inside, inorganic adhesive AD also is injected between fin F and the neck shape portion 121.And, during extruded radiating fins F, inorganic adhesive AD is filled in the recess 712A, after inorganic adhesive AD solidifies, just can limit illuminator 11 rotations.
And the heat conductivity parts H that is passed through tubular by the heat of illuminating part 111 generations is to the fin F of the butt side of neck shape portion 121 conduction, and fin F carries out heat exchange with the cooling air that blows, thereby cools off illuminating part 111 effectively.
According to the elliptical reflector 712 of such embodiment 6, except the effect of the various embodiments described above, also has following effect.
(10) the heat conductivity parts H of tubular and the cooling body that fin F constitutes can be set on illuminator 11, just also inorganic adhesive AD can be filled in the recess 712A when only inorganic adhesive AD being filled between fin F and the neck shape portion 121, so, can carry out the rotation restriction of illuminator 11 simultaneously.
[embodiment 7]
Below, embodiments of the invention 7 are described.
In the foregoing description 1, elliptical reflector 212 constitutes the tubular of patchholes 123 along with the circular cone shape that increases gradually towards reflecting surface 124 diameters, forms neck shape portion 121 and the narrowest 125.
Therewith relatively, shown in Figure 12 A and Figure 12 B, the part of the neck shape portion 121 of the elliptical reflector 812 of embodiment 7 is cut off along the light shaft positive cross direction, and the butt side forms opening.These neck shape portion 121 different places are, do not have the narrowest 125 shown in Fig. 6 A of embodiment 1 and Fig. 6 B.
Shown in Figure 12 A, a part that keeps neck shape portion 121 when the shaping of elliptical reflector 812 under the state of the butt side end face of stopping up patchhole 723 after such neck shape portion 121 forms, by using instruments such as skive to cut off, form neck shape portion 121.
By suitably selecting the kind of skive, can make the butt side end face of this neck shape portion 121 (chamfering) portion occur tilting.
Here, inorganic adhesive AD is filled when pouring in the hole 723, inorganic adhesive AD will overflow and be filled to a plurality of chamfer bevels position that forms in the butt side end face of neck shape portion 121.
On the other hand, the surface of patchhole 723 is forming faces of the glass material of model extrusion molten, so fine finishining forms mirror status.Equally, the surface of encapsulation 112 also is finish-machined to and is mirror status.
Here, when the secondary speculum with half covering of front side of the illuminating part of luminous tube is set on light supply apparatus, this pair speculum 13 has the relative bonding plane of outer peripheral portion with the encapsulation of luminous tube within it on the side face, by bonding agent is applied to and the outer peripheral face of encapsulation 112 between fix.
On the other hand, by cutting off the part of neck shape portion 121, form peristome in the butt side, so, can carry out encapsulation 112 bonding that bonding and neck shape portion 121 and light beam that secondary speculum 13 and light beam penetrate the encapsulation 112 of direction front penetrate direction butt side from same direction.
According to the elliptical reflector 812 of such embodiment 7,, also has following effect except the effect described in the embodiment 1.
(11) also overflow the chamfer bevel position of the butt side end face of the neck shape portion 121 that is filled into cut-out owing to inorganic adhesive AD, so, increased the maintenance dose of bonding agent, can improve the adhesive strength of reflector and illuminator and strengthen fixing.In addition, chamfer bevel is positioned on the butt side end face, so, the special ditch portion etc. that bonding agent keeps usefulness needn't be set, thereby can reduce cost.
(12) surface finish of patchhole 723 forms mirror status, the surface of encapsulation 112 also finishing becomes mirror status, so bonding agent flow regime in mirror status mutual bonding is good, can further improve the adhesive strength of reflector and illuminator, be adhesively fixed thereby can strengthen.
(13) can carry out secondary speculum 13 and the bonding and neck shape portion 121 of the encapsulation 112 of light beam ejaculation direction front and the bonding process of the encapsulation 112 of light beam ejaculation direction butt side from same direction, so, bonding process efficient can be improved, thereby operation can be improved.
[embodiment 8]
Below, embodiments of the invention 8 are described.
In the foregoing description 7, shown in Figure 12 A and Figure 12 B, elliptical reflector 812 forms opening along the part of light shaft positive cross direction cut-out neck shape portion 121 in the butt side.
Therewith relatively, shown in Figure 13 A and Figure 13 B, the elliptical reflector 912 that is embodiment 8 with embodiment 7 something in common cuts off the part of neck shape portion 121, and different places are to be provided with the stage portion 126A that constitutes one section thin cone shape tubular in patchhole 723.
As shown in FIG. 13A, after such stage portion 126A formed under the state of the butt side end face of stopping up patchhole 723 when the shaping of elliptical reflector 912, a part of cutting off neck shape portion 121 formed stage portion 126A.So, conglobate liquid staying portion is set at the step part of patchhole 723 and stage portion 126A.
According to the elliptical reflector 912 of such embodiment 8, except the effect of (11)～(13) of embodiment 7, also has following effect.
(14) inner face at patchhole 723 is provided with the stage portion 126A that constitutes cone shape tubular, so, even inject inorganic adhesive AD from reflecting surface 124 sides, inorganic adhesive AD also is trapped in the step part of the circle of patchhole 723 and stage portion 126A easily, so, can prevent reliably that inorganic adhesive AD from overflowing from the butt side end face peristome of patchhole 723.
[embodiment 9]
Below, embodiments of the invention 9 are described.
In the foregoing description 7, shown in Figure 12 A and Figure 12 B, elliptical reflector 812 forms opening along the part of light shaft positive cross direction cut-out neck shape portion 121 in the butt side.
Therewith relatively, shown in Figure 14 A and Figure 14 B, the elliptical reflector 1012 of embodiment 9 and embodiment 7 identical places are, butt side in neck shape portion 121 forms opening, different is the shape difference of the radicle of neck shape portion 121, is provided with cylindrical portion 127A cylindraceous in the part of patchhole 723.
Shown in Figure 14 A, when the shaping of elliptical reflector 1012, after under the state of the butt side end face of stopping up patchhole 723, forming, the butt side of neck shape portion 121 is carried out perforate processing, thereby form cylindrical portion 127A cylindraceous in the part of patchhole 723.This cylindrical portion 127A cylindraceous be to use instruments such as skive to patchhole 723 cut, attrition process forms, cylindrical portion 127A cylindraceous is arranged on the part of patchhole 723.
In addition, the butt side end face of neck shape portion 121 can form chamfer bevel, as previously mentioned, by suitably selecting the kind of skive, can form chamfer bevel energetically.
According to the elliptical reflector 1012 of such embodiment 9, except the effect of (11)～(13) of embodiment 7, also has following effect.
(15) part at patchhole 723 is provided with cylindrical portion 127A cylindraceous, so, inorganic adhesive AD being filled into carrying out between patchhole 723 and the encapsulation 112 when bonding, the loading of bonding agent increases, thereby can more strengthen fixing.
[distortion of embodiment]
The present invention does not limit the various embodiments described above, comprises distortion shown below yet.
In the above-described embodiments, light source lamp unit 10 is applied to have the projector 1 of liquid crystal panel 42R, 42G, 42B, but, the invention is not restricted to this, have and for example use that the projector of the device of micro mirror also can adopt the present invention, in addition, the optical device beyond the projector also can adopt the present invention.
In addition, the foregoing description 7～embodiment 9 (referring to Figure 12, Figure 13, Figure 14) is a structure of having utilized the chamfer bevel that forms in the butt side end face of neck shape portion 121, still, the invention is not restricted to this, also can adopt the reflector structure that does not have chamfer bevel.
That is, even without chamfer bevel, as long as can guarantee that the adhesive strength of reflector and illuminator is just passable.
In addition, the shape that the section shape of the patchhole of reflector is not limited to illustrate in the various embodiments described above, so long as the structure that can form stage portion is just, the section shape of various patchholes can adopt the present invention.
In addition, concrete structure during the invention process and shape etc. can adopt other structure etc. in the scope that can reach purpose of the present invention.
Light supply apparatus of the present invention also can be applied to penetrate the optical device of the high light beam of directive property except the image display device of above-mentioned projector etc., for example, can be applied to other lighting apparatus such as spotlight.
Claims (3)
1. light supply apparatus, this light supply apparatus possesses: have the illuminating part that carries out Discharge illuminating between electrode and be arranged on the luminous tube of encapsulation of the both sides of this illuminating part, with have the neck shape portion that is formed with the patchhole that can insert this luminous tube and make from above-mentioned illuminating part emitted light beams towards certain orientation the reflector of reflecting part of the reflecting surface of the oval calotte shape that as one man forwards penetrates with this integrally formed having of neck shape portion, it is characterized in that:
Above-mentioned luminous tube is provided with the front side secondary speculum of half covering roughly;
Above-mentioned reflector has the stage portion that forms between the periphery edge of the reflecting surface side opening portion end of above-mentioned patchhole and this reflecting surface;
The external diameter of above-mentioned stage portion is bigger than the external diameter of above-mentioned secondary speculum, and is in the inboard by the internal diameter in the usable reflection zone of the above-mentioned reflector of the outer peripheral face decision of the front side focal position of above-mentioned reflector and above-mentioned secondary speculum;
Above-mentioned stage portion has the part that does not form above-mentioned reflecting surface by film forming on the border with above-mentioned usable reflection zone.
2. by the described light supply apparatus of claim 1, it is characterized in that:
Above-mentioned stage portion cuts into section as the interface portion with the inner peripheral surface of above-mentioned reflecting surface and above-mentioned patchhole and is the depression of L shape and forms;
The side of this stage portion and the handing-over of above-mentioned reflecting surface is set to not form by film forming the part of above-mentioned reflecting surface.
3. projector has the projecting optical device that light supply apparatus, modulation is penetrated from this light supply apparatus according to image information light beam form the optical image that the optic modulating device of optical image and enlarging projection form by this optic modulating device, it is characterized in that:
Above-mentioned light supply apparatus possesses: have the illuminating part that between electrode, carries out Discharge illuminating and be arranged on this illuminating part both sides encapsulation luminous tube and have the neck shape portion that is formed with the patchhole that can insert this luminous tube and make from above-mentioned illuminating part emitted light beams towards certain orientation the reflector of reflecting part of the reflecting surface of the oval calotte shape that as one man forwards penetrates with this integrally formed having of neck shape portion;
Above-mentioned luminous tube is provided with the front side secondary speculum of half covering roughly;
Above-mentioned reflector has the stage portion that forms between the periphery edge of the reflecting surface side opening portion end of above-mentioned patchhole and this reflecting surface;
The external diameter of above-mentioned stage portion is bigger than the external diameter of above-mentioned secondary speculum, and is in the inboard by the internal diameter in the usable reflection zone of the above-mentioned reflector of the outer peripheral face decision of the front side focal position of above-mentioned reflector and above-mentioned secondary speculum;
Above-mentioned stage portion has the part that does not form above-mentioned reflecting surface by film forming on the border with above-mentioned usable reflection zone.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003082921 | 2003-03-25 | ||
| JP082921/2003 | 2003-03-25 | ||
| JP327238/2003 | 2003-09-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1697948A true CN1697948A (en) | 2005-11-16 |
| CN100507345C CN100507345C (en) | 2009-07-01 |
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ID=35350150
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800005917A Expired - Fee Related CN100507346C (en) | 2003-03-25 | 2004-03-24 | Light source device, and projector |
| CNB200480000589XA Expired - Fee Related CN100507345C (en) | 2003-03-25 | 2004-03-24 | Light source device, and projector |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004800005917A Expired - Fee Related CN100507346C (en) | 2003-03-25 | 2004-03-24 | Light source device, and projector |
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| Country | Link |
|---|---|
| CN (2) | CN100507346C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102192417A (en) * | 2010-03-01 | 2011-09-21 | 亿光电子工业股份有限公司 | Light source module and lamp |
| CN101046606B (en) * | 2006-03-28 | 2012-10-24 | 精工爱普生株式会社 | Projector |
| CN106838827A (en) * | 2017-01-18 | 2017-06-13 | 深圳市润沃自动化工程有限公司 | A kind of line source part curing of remote projection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3004793U (en) * | 1994-05-31 | 1994-11-22 | 岩崎電気株式会社 | Short arc metal halide lamp device |
| US6351058B1 (en) * | 1999-07-12 | 2002-02-26 | Eg&G Ilc Technology, Inc. | Xenon ceramic lamp with integrated compound reflectors |
-
2004
- 2004-03-24 CN CNB2004800005917A patent/CN100507346C/en not_active Expired - Fee Related
- 2004-03-24 CN CNB200480000589XA patent/CN100507345C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101046606B (en) * | 2006-03-28 | 2012-10-24 | 精工爱普生株式会社 | Projector |
| CN102192417A (en) * | 2010-03-01 | 2011-09-21 | 亿光电子工业股份有限公司 | Light source module and lamp |
| CN106838827A (en) * | 2017-01-18 | 2017-06-13 | 深圳市润沃自动化工程有限公司 | A kind of line source part curing of remote projection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100507346C (en) | 2009-07-01 |
| CN100507345C (en) | 2009-07-01 |
| CN1697949A (en) | 2005-11-16 |
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