CN1300953A - Liquid crystal projector with dual-lamp structure - Google Patents
Liquid crystal projector with dual-lamp structure Download PDFInfo
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- CN1300953A CN1300953A CN 99126477 CN99126477A CN1300953A CN 1300953 A CN1300953 A CN 1300953A CN 99126477 CN99126477 CN 99126477 CN 99126477 A CN99126477 A CN 99126477A CN 1300953 A CN1300953 A CN 1300953A
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Abstract
A liquid crystal projector with dual-lamp structure is composed of light source module and optical module. Said light source module consists of two luminous element sets; a lens array group composed of two front lens arrays close to the luminous element and a back-end lens array; at least one prism or reflector group to refract or deflect the light beams from at least one luminous element, to make them parallel to the light beams from another prism; polarizing element for polarizing the light source to P or S polarity; and condensing lens to make the polarized light beams come into optical module.
Description
The present invention relates to liquid crystal projector, particularly relate to a kind of liquid crystal projector with dual-lamp structure.
With reference to figure 1, existing liquid crystal projector comprises a white light emitting element L, light polarization and an even module 110 and an optical module 100.Light polarization and even module 110 are used for white light polarization (polarized) the one-tenth P light of light-emitting component L or S light and the equalizing light rays after will polarizing.Optical module 100 comprises one first color separation filter (color separating filter) 120, and the red light in the light after the polarization is passed, the light reflection of all the other colors; One first completely reflecting mirror 130 will pass red reflex to the first liquid crystal panel 171 of first color separation filter 120; One second color separation filter 140, the green light in the light that first color separation filter 120 is reflected reflexes to second liquid crystal panel 172, and allows blue light pass; The one second and the 3rd completely reflecting mirror 150,160 reflexes to the 3rd liquid crystal panel 173 with the blue light that penetrated second color separation filter 140; One colo(u)r mixer 180, with pass first, second and the 3rd liquid crystal panel 171,172 and 173 redness, greenly be mixed into light beam ejaculation with blue light; And a projection lens 190, colo(u)r mixer 180 emitted light beams are incident upon on the screen 200.
As mentioned above, for the liquid crystal projector of single light-emitting component, for example portable liquid crystal projector is because its light-source brightness is limited, so be only applicable to middle-size and small-size Conference Room.But for large-scale Conference Room, because projector need be with image projection at area on the big and distance screen far away, so the light that projector throws needs the image that spectators that higher brightness just can make whole meeting-place can clearly see screen.So the liquid crystal projector of single light-emitting component also is not suitable for bigger conference hall.Therefore, Japanese Matsushita Electric Industrial proposes the liquid crystal projector of a kind of pair of lamp system, and as shown in Figure 2, it is an example of this pair lamp liquid crystal projector.The main difference of this pair lamp liquid crystal projector and existing single projector lamp is for having two groups of light-emitting component L1, L2, a light combined prism (prism) 210 and collimation lens (collimator lens) 220.The light that light combined prism 210 will be shone from left and right directions by light-emitting component L1, L2 respectively is combined into the single direction light of irradiation downwards.After crossing collimation lens 220, this single direction light penetration converts parallel rays to.Owing to utilize two groups of light-emitting component L1, L2 that the light source of this liquid crystal projector is provided, therefore the brightness that can improve this liquid crystal projector.
But, in the light-emitting component of aforesaid pair of lamp liquid crystal projector, the light of this light-emitting component is not to shine with directional light, but utilize reflection lampshade that light is roughly focused on the light combined prism 210, therefore the light of the reflection lampshade reflection by the light-emitting component rear is understood the electrode that some shines light-emitting component, and the radiation heat of this light can make the temperature of electrode raise.Generally speaking, light-emitting component be with molybdenum as electrode, its heat-resisting degree difference, if the heat radiation bad, will be easy to oxidation, fracture.So the light-emitting component of this pair lamp liquid crystal projector will derive the problem of heat radiation.
Moreover, the aforesaid pair of lamp liquid crystal projector utilize 210 combinations of light combined prism by about two groups of light that light-emitting component L1, L2 are shone, and utilize collimation lens 220 to convert directional light to.Because the light that irradiates from light-emitting component must must increase unnecessary space and meet its demand earlier through just converting operational directional light to behind light combined prism 210 and the collimation lens 220.Therefore the usability on the space is not good.
In addition because the relation of the mechanism of light-emitting component own, even two groups of light-emitting components mutually near, can form one between its two-beam line of launching at interval, if there are not other optical designs, will make the configuration of system become big, and not have elasticity.
The object of the present invention is to provide a kind of liquid crystal projector that improves brightness, saving space and have the dual-lamp structure of emergency response.
Another object of the present invention is to provide a kind of light-emitting component liquid crystal projector with dual-lamp structure in serviceable life that prolongs.
A further object of the present invention is to provide a kind of and the light of two groups of light-emitting components can be merged and the liquid crystal projector with dual-lamp structure of homogenising.
The object of the present invention is achieved like this, a kind of liquid crystal projector with dual-lamp structure promptly is provided, comprise a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, this light source module comprises: two light-emitting components, the direction of illumination approximate vertical of its light; One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component; One catoptron is disposed at the light path between described front lens array and the aforementioned back lens array, with the light that reflects an aforementioned light-emitting component to aforementioned back lens array; And a condenser is disposed at aforementioned back lens array rear one preset distance, so that light evenly enters the aforementioned optical module of this liquid crystal projector.
The present invention also provides a kind of liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, this light source module comprises: two light-emitting components, and the direction of illumination of its light is roughly relative; One group of lens arra, comprise the light path that lays respectively at aforementioned two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of aforementioned two groups of light-emitting components and the back lens array of aforementioned front lens array one predeterminable range of distance, make the equalizing light rays of aforementioned light-emitting component; Two catoptrons are disposed at the light path between aforementioned front lens array and the aforementioned back lens array, with the light that reflects aforementioned two light-emitting components to aforementioned back lens array; And a condenser, be disposed at aforementioned back lens array rear one preset distance, so that light evenly enters the aforementioned optical module of this liquid crystal projector.
The present invention also provides a kind of liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, this light source module comprises: two light-emitting components, the direction of illumination almost parallel of its light; One group of lens arra, comprise the light path that lays respectively at aforementioned two light-emitting components and near the front lens array of this each light-emitting component, and be positioned at the light path of aforementioned two groups of light-emitting components and the back lens array of aforementioned front lens array one predeterminable range of distance, make the equalizing light rays of aforementioned light-emitting component; One group of prism is disposed at the light path between aforementioned front lens array and the aforementioned back lens array, with the light that reflects an aforementioned light-emitting component to aforementioned back lens array; And a condenser, be disposed at aforementioned back lens array rear one preset distance, so that light evenly enters the aforementioned optical module of this liquid crystal projector.
The present invention also provides a kind of liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, this light source module comprises: two light-emitting components, the direction of illumination almost parallel of its light; One group of lens arra, comprise the light path that lays respectively at aforementioned two light-emitting components and near the front lens array of this each light-emitting component, and be positioned at the light path of aforementioned two groups of light-emitting components and the back lens array of aforementioned front lens array one predeterminable range of distance, make the equalizing light rays of aforementioned light-emitting component; Two groups of prisms are disposed at the light path between aforementioned front lens array and the aforementioned back lens array, with the light that reflects aforementioned two light-emitting components to aforementioned back lens array; And a condenser, be disposed at aforementioned back lens array rear one preset distance, so that light evenly enters the aforementioned optical module of this liquid crystal projector.
The present invention also provides a kind of liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, this light source module comprises: two light-emitting components, the direction of illumination almost parallel of its light; One group of lens arra, comprise the light path that lays respectively at aforementioned two light-emitting components and near the front lens array of this each light-emitting component, and be positioned at the light path of aforementioned two groups of light-emitting components and the back lens array of aforementioned front lens array one predeterminable range of distance, make the equalizing light rays of aforementioned light-emitting component; And a condenser, be disposed at aforementioned back lens array rear one preset distance, so that light evenly enters the aforementioned optical module of this liquid crystal projector.
In sum, the present invention has the liquid crystal projector of dual-lamp structure, it comprises a light source module and an optical module, this optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, wherein for this light source module comprises two light-emitting components, the direction of illumination almost parallel of its light; One group of lens arra, comprise the light path that lays respectively at two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of two groups of light-emitting components and, make the equalizing light rays of light-emitting component apart from the back lens array of front lens array one predeterminable range; Two groups of prisms are disposed at the light path between front lens array and the back lens array, with the light that reflects two light-emitting components to the back lens array; One polarization element is disposed at the position apart from light output end one preset distance of back lens array, is used for the light source of light-emitting component is polarized to P aurora or S aurora; And a condenser, be disposed at the polarization element rear, so that the light after the polarization evenly enters optical module.
Below in conjunction with accompanying drawing, describe embodiments of the invention in detail, wherein:
Fig. 1 is the light channel structure figure of existing single lamp liquid crystal projector;
Fig. 2 is the light channel structure figure of existing two lamp liquid crystal projectors;
Fig. 3 has the first embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention;
Fig. 4 has the second embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention;
Fig. 5 has the 3rd embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention;
Fig. 6 has the 4th embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention;
Fig. 7 has the 5th embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention;
Fig. 8 has the 6th embodiment synoptic diagram of the liquid crystal projector of dual-lamp structure for the present invention.
With reference to figure 3, it shows that the present invention has first embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 3, liquid crystal projector of the present invention comprises a light source module 10 and an optical module 100.The element of this optical module 100 and function are because of being same as the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 10 in detail more.This light source module 10 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 12 and 12 of each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the back lens array 13 of front lens array 12 and 12 ' one predeterminable ranges, one be disposed at front lens array 12 ' and back lens array 13 between light path with the light of reflection light-emitting component L2 catoptron 11 to back lens array 13, and be disposed at back lens array 13 rears, one preset distance so that the light polarization also evenly enters the polarization element 16 and condenser 14 of the optical module 100 of this liquid crystal projector.
The irradiate light direction of light-emitting component L1 and L2 is the approximate vertical direction, the irradiate light direction that is light-emitting component L1 is a directions X, the irradiate light direction of light-emitting component L2 is the Y direction, and the light of this light-emitting component L1 and L2 is the directional light ejaculation by the reflection of the reflection lampshade at rear.After the light of light-emitting component L1 passed front lens array 12, direct irradiation was at the first half of back lens array 13; The light penetration of light-emitting component L2 cross front lens array 12 ' after, need light to be reflected in the Lower Half of back lens array 13, and merge with the light of light-emitting component L1 and to form bigger light beam by catoptron 11.The light that passes back lens array 13 enters the optical module 100 of liquid crystal projector via polarization element 16 and condenser 14, is incident upon on the screen 200 again.Lens arra 12,12 ' need the size of fluid,matching crystal panel with 13 design.
With reference to figure 4, it shows that the present invention has second embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 4, liquid crystal projector of the present invention comprises a light source module 20 and an optical module 100.The element of this optical module 100 and function are because of being same as the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 20 in detail more.This light source module 20 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 22 and 22 of this each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the back lens array 23 of front lens array 22 and 22 ' one predeterminable ranges, be disposed at front lens array 22 and 22 ' and back lens array 23 between light path with the light of reflection light-emitting component L1 and L2 to the catoptron 21 and 21 of back lens array 23 ', and be disposed at back lens array 23 rears, one preset distance so that the light polarization also evenly enters the polarization element 26 and condenser 24 of the optical module 100 of this liquid crystal projector.
The irradiate light direction of light-emitting component L1 and L2 is roughly direction relative to each other, the irradiate light direction that is light-emitting component L1 is Y ' direction, the irradiate light direction of light-emitting component L2 is the Y direction, and the reflection of the light of this each light-emitting component L1 and L2 by the reflection lampshade at rear is directional light and penetrates.After the light of light-emitting component L1 passes front lens array 22, light is reflected in the first half of back lens array 23 by catoptron 21; The light penetration of light-emitting component L2 cross front lens array 22 ' after, need by catoptron 21 ' light is reflected in the Lower Half of back lens array 23, and merge with the light of light-emitting component L1 and to form bigger light beam.The light that passes back lens array 23 enters the optical module 100 of liquid crystal projector via polarization element 26 and condenser 24, is incident upon on the screen 200 again.
With reference to figure 5, it shows that the present invention has the 3rd embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 5, liquid crystal projector of the present invention comprises a light source module 30 and an optical module 100.The element of this optical module 100 and function are because of identical with the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 30 in detail more.This light source module 30 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 32 and 32 of this each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the polarization element 36 and the condenser 34 of the back lens array 33 of front lens array 32 and 32 ' one predeterminable ranges and be disposed at back lens array 33 rears, one preset distance so that light the polarizes optical module 100 that also evenly enters this liquid crystal projector.The irradiate light direction of light-emitting component L1 and L2 is direction roughly parallel to each other, and promptly the irradiate light direction of light-emitting component L1 and L2 is directions X, and the light of this each light-emitting component L1 and L2 is the directional light ejaculation by the reflection of the reflection lampshade at rear.The light of light-emitting component L1 and L2 pass front lens array 32 and 32 ' after, direct irradiation and enters the optical module 100 of liquid crystal projector via polarization element 36 and condenser 34 on back lens array 33, be incident upon on the screen 200 again.Because between light-emitting component L1 and the L2 clearance G is arranged, therefore, back lens array 33 can not have array lens in the position corresponding to this gap.
With reference to figure 6, it shows that the present invention has the 4th embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 6, liquid crystal projector of the present invention comprises a light source module 40 and an optical module 100.The element of this optical module 100 and function are because of being same as the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 40 in detail more.This light source module 40 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 42 and 42 of this each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the back lens array 43 of front lens array 42 and 42 ' one predeterminable ranges, be disposed at front lens array 42 and 42 ' and back lens array 43 between light path with the light of refraction light-emitting component L1 front end optical prism 41 and rear end optical prism 45 to back lens array 43, and be disposed at back lens array 43 rears, one preset distance so that the light polarization also evenly enters the polarization element 46 and condenser 44 of the optical module 100 of this liquid crystal projector.
The irradiate light direction of light-emitting component L1 and L2 is direction roughly parallel to each other, and promptly the irradiate light direction of light-emitting component L1 and L2 is directions X, and the light of each light-emitting component L1 and L2 is the directional light ejaculation by the reflection of rear reflection lampshade.After the light of light-emitting component L1 passes front lens array 42, via front end prism 41 light is reflected into X ' direction from directions X towards the below, be radiated on the rear end prism 45 at preposition, by this rear end prism 45 from X ' direction again bounce back be parallel to the direction X of back lens row 43 incident directions, be radiated on the lens arra 43; The light of light-emitting component L2 pass front lens array 42 ' after,, and merge with the light of light-emitting component L1 and to form bigger light beam at back lens array 43 with the directions X direct irradiation.The light that passes back lens array 43 enters the optical module 100 of liquid crystal projector by polarization element 46 and condenser 44, is incident upon on the screen 200 again.Owing between light-emitting component L1 and the L2 clearance G is arranged, therefore, the refraction that utilizes front end and rear end optical prism 41,45 merges the light of two groups of light-emitting component L1 and L2 in a precalculated position.So, can dwindle the size of polarization element 46 and condenser 44.
With reference to figure 7, show that the present invention has the 5th embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 7, liquid crystal projector of the present invention comprises a light source module 50 and an optical module 100.The element of this optical module 100 and function are because of being same as the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 50 in detail more.This light source module 50 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 52 and 52 of this each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the back lens array 53 of front lens array 52 and 52 ' one predeterminable ranges, be disposed at front lens array 52 and 52 ' and back lens array 53 between light path with the light of refraction light-emitting component L1 and L2 front end optical prism 51 to back lens array 53,51 ' with rear end optical prism 55,55 ', and be disposed at the polarization element 56 and condenser 54 that back lens array 53 rears one preset distance is used the optical module 100 that makes light polarization and evenly enter this liquid crystal projector.
Light-emitting component L1 and L2 configuration parallel to each other, i.e. the light of light-emitting component L1 and L2 ejaculation direction all is a directions X, and the light of this each light-emitting component L1 and L2 is the directional light ejaculation by the reflection of the reflection lampshade at rear.After the light of light-emitting component L1 passes front lens array 52, reflect into X ' direction via front end prism 51 from directions X, be radiated on the rear end prism 55 at preposition, by this rear end prism 55 from X ' direction again bounce back be parallel to the direction of the incident direction X of back lens array 53, be radiated at lens arra 53; The light of light-emitting component L2 pass front lens array 52 ' after, via front end prism 51 ' reflect into X from directions X " direction; preposition be radiated at rear end prism 55 ' on; " direction bounce back again is parallel to the direction of the incident direction X of back lens array 53 by this rear end prism 55 ' from X, be radiated on the lens arra 53, and form bigger light beam with the light merging of light-emitting component L1.The light that passes back lens array 53 enters the optical module 100 of liquid crystal projector via polarization element 56 and condenser 54, is incident upon on the screen 200 again.Owing between light-emitting component L1 and the L2 clearance G is arranged, therefore, utilize front end and rear end prism 51,51 ', 55,55 ' refraction the light of two groups of light-emitting component L1 and L2 is merged in a precalculated position.So, can dwindle the size of condenser 54 and polarization element 56.
With reference to figure 8, it shows that the present invention has the 6th embodiment of the liquid crystal projector of dual-lamp structure.As shown in Figure 8, liquid crystal projector of the present invention comprises a light source module 60 and an optical module 100.The element of this optical module 100 and function are because of being same as the optical module of general liquid crystal projector shown in Figure 1, and no longer explaining only describes light source module 60 in detail more.This light source module 60 comprises two light-emitting component L1 and L2, lay respectively at two light-emitting component L1 and L2 light path and near the front lens array 62 and 62 of this each light-emitting component ', be positioned at the light path of two light-emitting component L1 and L2 and apart from the back lens array 63 of front lens array 62 and 62 ' one predeterminable ranges, be disposed at front lens array 62 and 62 ' and back lens array 63 between light path with the light of refraction light-emitting component L1 and L2 front end optical prism 61 to back lens array 63,61 ' with rear end optical prism 65,65 ', and be disposed at back lens array 63 rears, one preset distance so that the light polarization also evenly enters the polarization element 66 and condenser 64 of the optical module 100 of this liquid crystal projector.This embodiment and the 5th embodiment are roughly the same, and its difference is that lens arra and the prismatic shape of the 5th embodiment is integral, and among this embodiment, lens arra and prism are disconnected from each other.
Above-mentioned light-emitting component L1 and L2 are directional light and penetrate by the reflection of the reflection lampshade at rear, so the light of its reflection can not be radiated at light-emitting element electrode, the temperature of electrode are raise, so each light-emitting component has long serviceable life.And because the light of two light-emitting components can shine simultaneously in optical module, the brightness meeting of this liquid crystal projector is higher than general single projector lamp.
In addition, can there be a gap during owing to two light-emitting component configured in parallel,, increases because of this gap makes the condenser size if directly be incident upon on the condenser.The liquid crystal projector that the present invention has dual-lamp structure utilizes a wherein light beam (or two groups of prisms reflect two light beams simultaneously) of one group of prismatic refraction, remove the gap so that two light beams are close, so, the size of condenser can diminish relatively, the size that simultaneously can dwindle optical module, the usability in increase space.
Moreover the also configurable control circuit of the present invention when needing the occasion of high brightness, is lighted two groups of light-emitting components simultaneously; When not needing the occasion of high brightness, only light wherein one group of light-emitting component, to save the energy and to increase life-span of light-emitting component.
The present invention has the liquid crystal projector of dual-lamp structure, utilizes the light combination with two groups of light-emitting components of prism or catoptron, and the light of this combination is incident upon on the optical module via condenser.Because two groups of light-emitting components have various change in location, applicable to different designs.In addition, because the present invention has two groups of independent luminous light-emitting components, when using liquid crystal projector of the present invention to carry out bulletin, even wherein one group of light-emitting component can't be luminous, another group light-emitting component also can continue the light source that provides basic, though light is dark slightly, be unlikely to make bulletin to interrupt, have the ability of emergency response.And when not needing the occasion of high brightness, but elasticity is selected wherein one group of luminous getting final product of light-emitting component, not only saves the energy, and can increase the life-span of light-emitting component.
Though more than describe the present invention in detail with embodiment, it only is a kind of illustration, does not therefore limit protection scope of the present invention, only otherwise break away from main idea of the present invention, those skilled in the art can carry out various distortion or change.Though for example prism forms one with lens arra in an embodiment, but also can form monomer individually.In addition, though the back lens array is the single lens array among the embodiment, also can be the combination of two back lens arrays of corresponding front lens array respectively.
Claims (8)
1. liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, described optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, it is characterized in that described light source module comprises:
Two light-emitting components, the direction of illumination approximate vertical of its light;
One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component;
One catoptron is disposed at the light path between described front lens array and the described back lens array, with the light that reflects a described light-emitting component to described back lens array; And,
One condenser is disposed at described back lens array rear one preset distance, so that light evenly enters the described optical module of described liquid crystal projector.
2. liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, described optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, it is characterized in that described light source module comprises:
Two light-emitting components, the direction of illumination of its light is roughly relative;
One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component;
Two catoptrons are disposed at the light path between described front lens array and the described back lens array, with the light that reflects described two light-emitting components to described back lens array; And,
One condenser is disposed at described back lens array rear one preset distance, so that light evenly enters the described optical module of described liquid crystal projector.
3. liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, described optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, it is characterized in that described light source module comprises:
Two light-emitting components, the direction of illumination almost parallel of its light;
One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component;
One group of prism is disposed at the light path between described front lens array and the described back lens array, with the light that reflects a described light-emitting component to described back lens array; And,
One condenser is disposed at described back lens array rear one preset distance, so that light evenly enters the described optical module of described liquid crystal projector.
4. liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, described optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, it is characterized in that described light source module comprises:
Two light-emitting components, the direction of illumination almost parallel of its light;
One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component;
Two groups of prisms are disposed at the light path between described front lens array and the described back lens array, with the light that reflects described two light-emitting components to described back lens array; And,
One condenser is disposed at described back lens array rear one preset distance, so that light evenly enters the described optical module of described liquid crystal projector.
5. as claim 3 or 4 described liquid crystal projectors with dual-lamp structure, the front end prism of wherein said prism and described front lens array are one-body molded, and the rear end prism of described prism and described back lens array are one-body molded.
6. liquid crystal projector with dual-lamp structure, comprise a light source module and an optical module, described optical module comprises polycomponent light color filter, organizes catoptron more, organizes liquid crystal panel more, a colo(u)r mixer and a projection lens, it is characterized in that described light source module comprises:
Two light-emitting components, the direction of illumination almost parallel of its light;
One group of lens arra, comprise the light path that lays respectively at described two light-emitting components and near the front lens array of each light-emitting component, and be positioned at the light path of described two groups of light-emitting components and the back lens array of described front lens array one predeterminable range of distance, make the equalizing light rays of described light-emitting component; And,
One condenser is disposed at described back lens array rear one preset distance, so that light evenly enters the described optical module of described liquid crystal projector.
7. as claim 1,2,3,4 or 6 described liquid crystal projectors, wherein also comprise the polarization element that is disposed between described back lens array and the condenser, be polarized to P aurora source or S aurora source with light source with described light-emitting component with dual-lamp structure.
8. as claim 1,2,3,4 or 6 described liquid crystal projectors with dual-lamp structure, wherein also comprise a controller, the described two groups of light-emitting components of may command move simultaneously, or wherein one group of light-emitting component action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126477 CN1300953A (en) | 1999-12-23 | 1999-12-23 | Liquid crystal projector with dual-lamp structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99126477 CN1300953A (en) | 1999-12-23 | 1999-12-23 | Liquid crystal projector with dual-lamp structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1300953A true CN1300953A (en) | 2001-06-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99126477 Pending CN1300953A (en) | 1999-12-23 | 1999-12-23 | Liquid crystal projector with dual-lamp structure |
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| Country | Link |
|---|---|
| CN (1) | CN1300953A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378503C (en) * | 2002-11-08 | 2008-04-02 | 台达电子工业股份有限公司 | Lighting system with multiple light sources |
| CN101482630B (en) * | 2008-01-07 | 2011-01-26 | 财团法人工业技术研究院 | Polarized color light-splitting apparatus |
| CN102454938A (en) * | 2011-01-04 | 2012-05-16 | 深圳市鹏之光照明科技有限公司 | Light distribution system of lamp |
-
1999
- 1999-12-23 CN CN 99126477 patent/CN1300953A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100378503C (en) * | 2002-11-08 | 2008-04-02 | 台达电子工业股份有限公司 | Lighting system with multiple light sources |
| CN101482630B (en) * | 2008-01-07 | 2011-01-26 | 财团法人工业技术研究院 | Polarized color light-splitting apparatus |
| CN102454938A (en) * | 2011-01-04 | 2012-05-16 | 深圳市鹏之光照明科技有限公司 | Light distribution system of lamp |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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