CN102636948A - Wall-mounted type projecting apparatus - Google Patents
Wall-mounted type projecting apparatus Download PDFInfo
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- CN102636948A CN102636948A CN2012101367288A CN201210136728A CN102636948A CN 102636948 A CN102636948 A CN 102636948A CN 2012101367288 A CN2012101367288 A CN 2012101367288A CN 201210136728 A CN201210136728 A CN 201210136728A CN 102636948 A CN102636948 A CN 102636948A
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Abstract
The invention discloses a wall-mounted type projecting apparatus. The wall-mounted type projecting apparatus provided by the invention comprises a casing; a light source which is arranged in the casing and is used for emitting light rays; a lighting display model which is arranged behind the light source and sends out an image information according to the light rays emitted by the light source and the received image signal; a projection lens which is arranged behind the lighting display model and amplifies the received image information; and a light ray flip element which is arranged behind the projection lens and turns the light rays emitted from the projection lens to 90 degrees and then emits the light rays. The wall-mounted type projecting apparatus provided by the invention has a simple light path system structure and is convenient to use in a wall-mounted manner. By using the wall-mounted type projecting apparatus provided by the invention, the thickness of the wall-mounted type projecting apparatus can be greatly reduced and the display effect of projection pictures can be effectively improved.
Description
Technical field
The present invention relates to image projection technology, particularly a kind of wall-hanging projection arrangement.
Background technology
On the present home theater market, the traditional projector that with the high voltage lamp is light source is in occupation of dominant position.Fig. 1 is the structural representation of traditional projector of the prior art.As shown in Figure 1, traditional projector mainly comprises casing 100, light source 101, illumination display module 102 and projection lens 103; Wherein, also comprise illumination component and display chip in the illumination display module 102.When tradition projector is in running order; Shine above the display chip after the light process illumination component shaping that light source 101 sends; Demonstrate the image of the digital signal of input through display chip, the amplification through projection lens 103 projects on the screen then, thereby forms projected image.As can be seen from Figure 1, the light source 101 in traditional projector, illumination display module 102 and projection lens 103 are arranged in the same plane, cause the size of projector on projecting direction very big like this.Therefore, traditional projector generally can only be lifted on the roof or put on the desktop and use.But the suspention of traditional projector is difficulty relatively, needs the professional person to install, and needs special interior decoration, then relatively takes up room on the desktop and put, thereby can make troubles to use, is unfavorable for popularizing of home projector.
In order to solve the above problems, a kind of wall-hanging projector has been proposed in the prior art.Fig. 2 is the structural representation of wall-hanging projector of the prior art.As shown in Figure 2, above-mentioned wall-hanging projector mainly comprises casing 200, light source 201, illumination display module 202, projection lens 203 and catoptron 204; Wherein, also comprise illumination component and display chip in the illumination display module 202.Compare with traditional projector; In above-mentioned wall-hanging projector, between display chip (DLP and LCD) and the projection lens 203 of illumination display module 202, be provided with a catoptron 204, and the optical axis of display chip and projection lens 203 is 90 degree settings; Therefore; Will be from the light that display chip penetrates by said catoptron 204 reflections, direction has been overturn after 90 °, through projection lens 203 light emission is gone out again; Thereby reduced the volume of projector, can realize the wall-hanging use of projector.
Further, in the prior art as shown in Figure 2, projection lens 203 usually has prior art constructions as shown in Figure 5.That is, projection lens 203 comprises: primary mirror group 501, compensating glass group 502, varifocal mirror group 503 and focusing lens group 504.Wherein, comprise the compensation eyeglass that multi-disc is glued together in the said compensating glass group 502, be used for compensating the aberration of projection lens 203.
Yet, in the wall-hanging projector in the prior art,, therefore cause the alignment between display chip and the projection lens not good easily, thereby influence the display effect of projected picture because display chip is different with the optical axis direction of projection lens.And, because projection lens of the prior art needs the compensating glass group of compensate for chromatic aberration, cause the size of projection lens bigger, thereby the size of projector is also bigger.In addition, owing to projection lens is arranged on the sidewall of casing, and the length of projection lens is generally all long, and therefore wall-hanging projector of the prior art is still thicker, thus still can bring the inconvenience of installing, and influence attractive in appearance.
Summary of the invention
According to the present invention, a kind of wall-hanging projection arrangement is provided, thereby can under the prerequisite of the effect that does not influence projection display picture, have reduced the thickness of wall-hanging projection arrangement.
According to a kind of wall-hanging projection arrangement of the present invention, it comprises: casing; Be arranged at said interior and be used to launch the light source of light; Be arranged at after the said light source and and launch the illumination display module of image information according to the light of said light emitted and the picture signal that is received; Be arranged at after the said illumination display module and amplify the projection lens of the image information that is received; The light flip element that penetrates again after 90 ° of the light upsets that is arranged at after the said projection lens and said projection lens is launched, this light flip element does not have extra aberration.
Wherein, said wall-hanging projection arrangement also further comprises: be arranged on the sidewall of said casing, laterally arrange with the optical axis of said projection lens and the window glass of the reflection ray of the said light flip element of transmissive.
Wherein, the two sides of said window glass all is coated with the anti-reflection film of visible light wave range, and the anti-reflection film of said visible light wave range is made up of multilayer dielectric film.
Wherein, said light flip element is: be arranged at after the said projection lens and be the metallic-membrane plating reflector sheet of 45 ° of settings with the optical axis of said projection lens, be coated with the highly reflecting films that one deck at least possesses high reflectance on the substrate surface of said metallic-membrane plating reflector sheet.
Wherein, said light flip element is: be arranged at after the said projection lens and the optical axis of hypotenuse and said projection lens is the right-angle prism of 45 ° of settings; Wherein, be coated with the highly reflecting films that one deck at least possesses high reflectance on the hypotenuse surface of described right-angle prism.
Wherein, said highly reflecting films are: dielectric reflection film or metallic reflective coating.
Wherein, said metallic reflective coating is processed by aluminium, silver or gold.
Wherein, comprise in the said projection lens: primary mirror group, compensating glass group, varifocal mirror group and focusing lens group; Wherein, a compensation eyeglass only is set in the said compensating glass group.
Wherein, said projection lens is made up of primary mirror group, varifocal mirror group and focusing lens group; Any two kinds of mirror groups in said primary mirror group, varifocal mirror group and the focusing lens group are processed by the complementary material of two kinds of chromatic dispersions respectively.
Wherein, the complementary material of said two kinds of chromatic dispersions is: crown glass and flint glass.
Wherein, said light source is a LASER Light Source, and said light flip element is: be arranged at after the said projection lens and be the holographic mirror that predetermined angular is provided with the optical axis of said projection lens.
Wherein, said predetermined angular is 45 °.
Wherein, said light source is a solid state light emitter.
Wherein, said solid state light emitter is the light source that LED source, LASER Light Source or pumping fluorescent powder produce.
Wherein, said illumination display module also further comprises: illumination component and display chip; The light of said light emitted is through after the said illumination component shaping, on the said display chip that throws light on; Light and the picture signal that received of said display chip after according to shaping launched corresponding image information.
Visible by technique scheme, mainly comprise in the wall-hanging projection arrangement among the present invention: casing, light source, illumination display module, projection lens and light flip element.Wherein, Because above-mentioned wall-hanging projection arrangement all is not arranged on whole projection lens on the sidewall of casing; But the projection lens in this wall-hanging projection arrangement is set to be parallel to the screen of institute's projection; Project on the screen again after 90 ° of the light upsets of said projection lens being launched through said light flip element; Thereby can reduce the thickness of wall-hanging projection arrangement greatly, make the profile of whole wall-hanging projection arrangement become very thin, and do not influence the effect of projection display picture.And said light flip element does not have aberration even can also further eliminate the aberration in the projection lens, helps further to reduce the thickness of projector.In addition, through the compensation eyeglass of a slice compensate for chromatic aberration only only being set even removing the compensation eyeglass, can further reduce the size of projection lens again in projection lens.Further, because the optical axis direction of said illumination display module and said projection lens is identical, so alignment is fine, thereby can improve the display effect of projected picture effectively.Further, because above-mentioned light flip element only penetrates after 90 ° of the light upsets of said projection lens emission again, so the luminous energy loss ratio is less; And, because said light flip element is installed in after the projection lens, can cause extra aberration, thereby can guarantee the quality of final projected picture.Further, because the fuselage of the wall-hanging projection arrangement among the present invention can become thinner, so installation process also will become more convenient.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art.Obviously, the accompanying drawing in below describing only is some embodiments of the present invention, for those of ordinary skills, can also obtain other embodiment and accompanying drawing thereof according to these accompanying drawing illustrated embodiments.
Fig. 1 is the structural representation of traditional projector of the prior art;
Fig. 2 is the structural representation of wall-hanging projector of the prior art;
Fig. 3 is the general structure synoptic diagram of the wall-hanging projection arrangement in the embodiment of the invention;
Fig. 4 is the structural representation of first kind of wall-hanging projection arrangement in the embodiment of the invention;
Fig. 5 is the structural representation of projection lens of the prior art;
Fig. 6 is the structural representation of first kind of projection lens in the embodiment of the invention;
Fig. 7 is the structural representation of second kind of projection lens in the embodiment of the invention;
Fig. 8 is the structural representation of second kind of wall-hanging projection arrangement in the embodiment of the invention;
Fig. 9 is the structural representation of the third the wall-hanging projection arrangement in the embodiment of the invention.
Embodiment
For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, to further explain of the present invention.
Referring to Fig. 3, show the general structure synoptic diagram of the wall-hanging projection arrangement in the embodiment of the invention.Wall-hanging projection arrangement in the present embodiment comprises:
It is inner and be used to launch the light source 301 of light to be arranged at said casing 300;
Be arranged at after the said light source 301 and can launch the illumination display module 302 of image information according to the light of said light source 301 emissions and the picture signal that is received;
Be arranged at after the said illumination display module 302 and the projection lens 303 of the scalable image information that receives;
The light flip element 304 that penetrates again after 90 ° of the light upsets that is arranged at after the said projection lens 303 and can said projection lens 303 be launched, this light flip element is the optical element that does not have extra aberration.
When above-mentioned wall-hanging projection arrangement is in running order, said light source 301 will be launched corresponding light; Said illumination display module 302 can receive the light of light source 301 emission, and the light that is received is carried out shaping, and launches corresponding image information according to light after the shaping and the picture signal that received; Said projection lens 303 projects on the said light flip element 304 after the image information of said illumination display module 302 emissions is amplified; Said light flip element 304 penetrates after 90 ° of the light upsets of said projection lens 303 projections, projects on the corresponding screen, forms the respective projection image.
In above-mentioned wall-hanging projection arrangement; Because light flip element 304 can penetrate after 90 ° of the light upsets of said projection lens 303 emissions again; Therefore can the projection lens 303 in this wall-hanging projection arrangement be set to be parallel to the screen of institute's projection; And need not whole projection lens 303 all be arranged on the sidewall of casing 300; Thereby can reduce the thickness of wall-hanging projection arrangement greatly, make the profile of whole wall-hanging projection arrangement become very thin, and do not influence the effect of projection display picture.Further, because said illumination display module 302 is identical with the optical axis direction of said projection lens 303, so alignment is fine, thereby can improve the display effect of projected picture effectively.In addition, because above-mentioned light flip element 304 only penetrates after 90 ° of the light upsets of said projection lens 303 emissions again, so the luminous energy loss ratio is less; And, because said light flip element 304 is installed in after the projection lens 303, can cause extra aberration, thereby can guarantee the quality of final projected picture.At last, because the fuselage of the wall-hanging projection arrangement among the present invention can become thinner, so installation process also will become more convenient.
Preferable; In specific embodiment of the present invention, said wall-hanging projection arrangement also can further comprise: be arranged on the sidewall of said casing 300, laterally arrange with the optical axis of said projection lens 303 and the window glass 305 of the reflection ray of the said light flip element 304 of transmissive.This window glass 305 can play the dustproof effect, can protect the inner various optical elements of above-mentioned wall-hanging projection arrangement, and can be so that the profile of wall-hanging projector is more attractive in appearance.Further, in preferred embodiment of the present invention, the two sides of said window glass 305 all is coated with the anti-reflection film of visible light wave range, thereby can guarantee the high permeability of light beam, avoids the projection image quality is caused adverse influence.Wherein, the anti-reflection film of visible light wave range is made up of multilayer dielectric film.
Preferable, in specific embodiment of the present invention, said light source 301 can be a solid state light emitter, for example, said light source 301 can be the light source that light emitting diode (LED) light source, LASER Light Source or pumping fluorescent powder produce.Above-mentioned solid state light emitter advantages of small volume, it is simple relatively to dispel the heat, thereby can reduce the size of above-mentioned wall-hanging projection arrangement effectively.
Preferable, in specific embodiment of the present invention, said illumination display module 302 also further comprises: illumination component and display chip (not shown).The light of said light source 301 emissions is through after the said illumination component shaping, on the said display chip that throws light on; Light and the picture signal that received of said display chip after according to shaping launched corresponding image information.
Below will further introduce the wall-hanging projection arrangement among the present invention with the mode of preferred embodiment.
First embodiment
Fig. 4 shows the structural representation of first kind of wall-hanging projection arrangement in the embodiment of the invention.Referring to Fig. 4, the wall-hanging projection arrangement in the present embodiment comprises: casing 300, light source 301, illumination display module 302, projection lens 303 and light flip element 304.Wherein, it is corresponding identical that said casing 300, light source 301, illumination display module 302 and projection lens 303 and the casing 300 shown in Fig. 3, light source 301, illumination display module 302 and projection lens 303 are distinguished, and repeats no more at this.With different among Fig. 3 be that in the present embodiment, said light flip element 304 is: be arranged at after the said projection lens 303 and be the metallic-membrane plating reflector sheet 401 of 45 ° of settings with the optical axis of said projection lens 303.
Because this metallic-membrane plating reflector sheet 401 is 45 ° of settings with the optical axis of said projection lens 303, penetrate again after 90 ° of the light upsets that therefore can said projection lens 303 be launched, project on the corresponding screen, form the respective projection image.
Preferable, in specific embodiment of the present invention, be coated with the highly reflecting films that one deck at least possesses high reflectance on the substrate surface of said metallic-membrane plating reflector sheet 401.Metallic-membrane plating reflector sheet 401 can not introduced extra aberration to projection arrangement.Because the thicknesses of layers of highly reflecting films and the wavelength of light wave have the equal order of magnitude; Therefore, this metallic-membrane plating reflector sheet 401 utilizes the interference of light between the highly reflecting films layer, can realize the reflectivity more than 95%; Thereby strengthen the reflectivity of light, improve the image quality of projected image.
Further, said highly reflecting films can be: dielectric reflection film or metallic reflective coating.
Specifically, because the metal pair light wave has very strong reflex, so we can utilize this characteristic on the substrate surface of metallic-membrane plating reflector sheet 401, to be plating to few layer of metal reflectance coating.
Preferable, said metallic reflective coating can be processed by materials such as aluminium, silver or gold.For example, the reflectivity of metallic reflective coating made of aluminum can reach 95%, and the reflectivity of the metallic reflective coating that is made from silver is then up to more than 97%.Therefore, only this one deck metallic reflective coating just can be realized at least 95% reflectivity, and metallic reflective coating do not require for the angle of incident light, can realize the height reflection of any incident angle.In addition, above-mentioned metallic reflective coating also have cost low, process simple advantage.
In addition, in preferred embodiment of the present invention, can also realize high reflectance through the mode of plating multilayer dielectric reflective coating on the substrate surface of metallic-membrane plating reflector sheet 401.Through thickness and the material that designs each dielectric reflection film in advance, it is long mutually to make that the light that passes each tunic and a following skim satisfies interference, thereby reflected light is enhanced, and realizes high reflectance.
Can know that to sum up the above-mentioned metallic-membrane plating reflector sheet 401 that is coated with highly reflecting films can utilize principle of interference to realize the high reflectance to light.And, therefore very little because said highly reflecting films are generally all extremely thin for the dispersion interaction of incident light, can ignore, promptly metallic-membrane plating reflector sheet 401 does not have extra aberration.In addition; Because the above-mentioned flatness that is coated with a face of 401 needs of metallic-membrane plating reflector sheet of highly reflecting films can guarantee the high reflectance to light; Therefore need guarantee the optical element (for example, total reflection eyeglass or total reflection prism) of a plurality of flatness with respect to other, the processing of the above-mentioned metallic-membrane plating reflector sheet 401 that is coated with highly reflecting films is more easy; Precision also requires lower, thus have cost low, process simple advantage.
Further; In preferred embodiment of the present invention, because the above-mentioned metallic-membrane plating reflector sheet 401 that is coated with highly reflecting films brings extra aberration can for projection lens 303, therefore; In technical scheme of the present invention; Can consider projection lens of the prior art is improved accordingly,, reduce the production cost of projection lens to reduce the size of projection lens.
Fig. 5 is the structural representation of projection lens of the prior art.Be example from left to right with light path, as shown in Figure 5, projection lens of the prior art comprises: primary mirror group 501, compensating glass group 502, varifocal mirror group 503 and focusing lens group 504.Wherein, comprise the compensation eyeglass that multi-disc is glued together in the said compensating glass group 502.
Specifically, said primary mirror group is used for the light that passes through is amplified; Said varifocal mirror group is used to change the focal length of whole camera lens; Said focusing lens group is used for projection lens is finely tuned, and makes image accurately image on screen.
Said projection lens of the prior art is the optical element of processing with glass or plastic or other material with amplification.Because material is different to the refractive index of the light of different wave length, thus a branch of white light through in the commaterial, its refraction angle also can be inequality, promptly so-called chromatic dispersion, therefore, the imaging point of the light of different colours does not overlap.In the optical design of projection lens, the incomplete phenomenon of the imaging that chromatic dispersion brought is called aberration.Aberration is prevalent in the optical element, is a kind of aberration that must eliminate in the imaging system.Generally speaking, projection lens of the prior art is to utilize compensating glass group 502 to come color difference eliminating.But, for the needs of color difference eliminating, generally all comprise multi-disc compensation eyeglass in the compensating glass group 502, therefore the size of projection lens of the prior art is generally all bigger.
In above-mentioned wall-hanging projection arrangement of the present invention, can know that based on the above-mentioned characteristic that is coated with the metallic-membrane plating reflector sheet 401 of highly reflecting films the metallic-membrane plating reflector sheet 401 that is coated with highly reflecting films brings extra aberration can for projection lens 303.Therefore, in preferred embodiment of the present invention, can consider from projection lens 303, to reduce the eyeglass number of compensating glass group, even remove the compensating glass group in the projection lens 303.
For example, referring to Fig. 6, be example from left to right with light path, in preferred embodiment of the present invention, comprise in the said projection lens 303: primary mirror group 501, compensating glass group 602, varifocal mirror group 503 and focusing lens group 504.Wherein, a compensation eyeglass only is set in the said compensating glass group 602.Owing to only have a compensation eyeglass in the compensating glass group 602, therefore can reduce the size of projection lens 303 effectively, reduce the production cost of projection lens 303.
Again for example, referring to Fig. 7, be example from left to right with light path, in preferred embodiment of the present invention, said projection lens 303 is made up of primary mirror group 501, varifocal mirror group 503 and focusing lens group 504.In this embodiment; Any two kinds of mirror groups in said primary mirror group 501, varifocal mirror group 503 and the focusing lens group 504 are processed by the complementary material of two kinds of chromatic dispersions respectively; Thereby can eliminate the aberration that possibly exist in the projection lens 303, thereby can remove compensating glass group 502.That is to say, in the said projection lens 303 the compensating glass group is not set, thereby can reduce the size of projection lens 303 more effectively, reduce the production cost of projection lens 303.
Preferable, the complementary material of said two kinds of chromatic dispersions can be: crown glass and flint glass.
By on can know, in specific embodiment of the present invention, can be through to the global design of projection lens 303; Reduce the eyeglass number of the compensating glass group in the projection lens 303, even from projection lens 303, remove the compensating glass group, and come compensate for chromatic aberration through the material that changes different eyeglasses in the projection lens 303; Thereby can reduce the size of projection lens 303 effectively; Further reduce the volume of projector equipment, help ultra-thinization of projector equipment, and reduced the manufacturing cost of projector equipment.
Preferable, in specific embodiment of the present invention, said wall-hanging projection arrangement also can further comprise: window glass 305.This window glass 305 is corresponding identical with the window glass 305 shown in Fig. 3, repeats no more at this.
Second embodiment
Fig. 8 shows the structural representation into second kind of wall-hanging projection arrangement in the embodiment of the invention.Referring to Fig. 8, the wall-hanging projection arrangement in the present embodiment comprises: casing 300, light source 301, illumination display module 302, projection lens 303 and light flip element 304.Wherein, it is corresponding identical that said casing 300, light source 301, illumination display module 302 and projection lens 303 and the casing 300 shown in Fig. 3, light source 301, illumination display module 302 and projection lens 303 are distinguished, and repeats no more at this.With different among Fig. 3 be, in the present embodiment, light source 301 is a LASER Light Source, and said light flip element 304 is: be arranged at after the said projection lens 303 and be the holographic mirror 801 that predetermined angular is provided with the optical axis of said projection lens 303.In the present embodiment, holographic mirror 801 does not have aberration.
Wherein, said holographic mirror 801 is the optical elements that utilize the diffraction of light principle to process, and it is very strict for the requirement of optical wavelength, so be similar to the requirement that monochromatic LASER Light Source can satisfy its light source.In addition, can produce above-mentioned holographic mirror 801 through technology such as photoetching of the prior art, concrete manufacturing technology repeats no more at this.Because above-mentioned holographic mirror 801 can play high reflection (reflectivity is near 100%) effect to the light that three look LASER Light Sources send; Therefore penetrate again after 90 ° of the light upsets that can said projection lens 303 be launched; Project on the corresponding screen, form the respective projection image.
In addition; Principle according to holographic mirror 801 can be known; If penetrate again after 90 ° of the light upsets of hoping said projection lens 303 is launched; Predetermined angular between the optical axis of holographic mirror 801 and said projection lens 303 can be 45 °, but also might not to require must be 45 °, also can be other design point of view in advance.Therefore, in preferred embodiment of the present invention, holographic mirror 801 can design with the angle of the optical axis of said projection lens 303 as required in advance.
Preferable, in specific embodiment of the present invention, said wall-hanging projection arrangement also can further comprise: window glass 305.This window glass 305 is corresponding identical with the window glass 305 shown in Fig. 3, repeats no more at this.
The 3rd embodiment
Referring to Fig. 9, show structural representation into the third the wall-hanging projection arrangement in the embodiment of the invention.Wall-hanging projection arrangement in the present embodiment comprises: casing 300, light source 301, illumination display module 302, projection lens 303 and light flip element 304.Wherein, it is corresponding identical that said casing 300, light source 301, illumination display module 302 and projection lens 303 and the casing 300 shown in Fig. 3, light source 301, illumination display module 302 and projection lens 303 are distinguished, and repeats no more at this.
With different among Fig. 3 be that in the present embodiment, said light flip element 304 is:
Be arranged at after the projection lens 303 and hypotenuse and the optical axis of stating projection lens 303 are the right-angle prism 111 of 45 ° of settings; Wherein, be coated with the highly reflecting films that one deck at least possesses high reflectance on the hypotenuse surface of described right-angle prism 111.
Because the thicknesses of layers of highly reflecting films has the equal order of magnitude with the wavelength of light wave, therefore, penetrate again after 90 ° of the light upsets that said right-angle prism 111 can be launched said projection lens 303, project on the corresponding screen formation respective projection image.
In addition, the said highly reflecting films in the present embodiment are identical with highly reflecting films described in first embodiment, therefore repeat no more at this.
Owing to also be coated with highly reflecting films on the hypotenuse surface of right-angle prism 111, therefore do not have extra aberration.So in preferred embodiment of the present invention, said projection lens 303 also can be Fig. 6 or projection lens shown in Figure 7.Repeat no more at this.
Preferable, in specific embodiment of the present invention, said wall-hanging projection arrangement also can further comprise: window glass 305.This window glass 305 is corresponding identical with the window glass 305 shown in Fig. 3, repeats no more at this.
To sum up can know; In the wall-hanging projection arrangement that is provided in the present invention; Owing to whole projection lens is not arranged on the sidewall of casing; But the projection lens in this wall-hanging projection arrangement is set to be parallel to the screen of institute's projection, projects on the screen after 90 ° of the light upsets of said projection lens being launched through said light flip element again, thereby can reduce the thickness of wall-hanging projection arrangement greatly; Make the profile of whole wall-hanging projection arrangement become very thin, and do not influence the effect of projection display picture.In addition, because the optical axis direction of said illumination display module in the above-mentioned wall-hanging projection arrangement and said projection lens is identical, so alignment is fine, thereby can improve the display effect of projected picture effectively.In addition, because above-mentioned light flip element only penetrates after 90 ° of the light upsets of said projection lens emission again, so the luminous energy loss ratio is less; And, because said light flip element is installed in after the projection lens, can cause extra aberration, thereby can guarantee the quality of final projected picture.Simultaneously; Owing in the technical scheme of the present invention projection lens of the prior art is improved accordingly; From projection lens, reduced the eyeglass number of compensating glass group; Even removed the compensating glass group in the projection lens, thus reduced the size of projection lens effectively, reduced the production cost of projection lens.At last, because the fuselage of the wall-hanging projection arrangement among the present invention can become thinner, so installation process also will become more convenient.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a wall-hanging projection arrangement is characterized in that, comprising:
Casing;
Be arranged at said interior and be used to launch the light source of light;
Be arranged at after the said light source and can launch the illumination display module of image information according to the light of said light emitted and the picture signal that is received;
Be arranged at after the said illumination display module and the projection lens of the scalable image information that receives;
The light flip element that penetrates again after 90 ° of the light upsets that is arranged at after the said projection lens and can said projection lens be launched, this light flip element does not have extra aberration.
2. wall-hanging projection arrangement as claimed in claim 1 is characterized in that, said wall-hanging projection arrangement also further comprises:
Be arranged on the sidewall of said casing, laterally arrange and the window glass of the reflection ray of the said light flip element of transmissive with the optical axis of said projection lens;
The two sides of said window glass all is coated with the anti-reflection film of visible light wave range, and the anti-reflection film of said visible light wave range is made up of multilayer dielectric film.
3. wall-hanging projection arrangement as claimed in claim 1 is characterized in that, said light flip element is:
Be arranged at after the said projection lens and be the metallic-membrane plating reflector sheet of 45 ° of settings, be coated with the highly reflecting films that one deck at least possesses high reflectance on the substrate surface of said metallic-membrane plating reflector sheet with the optical axis of said projection lens.
4. wall-hanging projection arrangement as claimed in claim 1 is characterized in that, said light flip element is:
Be arranged at after the said projection lens and the optical axis of hypotenuse and said projection lens is the right-angle prism of 45 ° of settings;
Wherein, be coated with the highly reflecting films that one deck at least possesses high reflectance on the hypotenuse surface of described right-angle prism.
5. like claim 3 or 4 described wall-hanging projection arrangements, it is characterized in that:
Said highly reflecting films are: dielectric reflection film or metallic reflective coating;
Said metallic reflective coating is processed by aluminium, silver or gold.
6. like claim 3 or 4 described wall-hanging projection arrangements, it is characterized in that, comprise in the said projection lens: primary mirror group, compensating glass group, varifocal mirror group and focusing lens group;
Wherein, a compensation eyeglass only is set in the said compensating glass group.
7. like claim 3 or 4 described wall-hanging projection arrangements, it is characterized in that:
Said projection lens is made up of primary mirror group, varifocal mirror group and focusing lens group;
Any two kinds of mirror groups in said primary mirror group, varifocal mirror group and the focusing lens group are processed by the complementary material of two kinds of chromatic dispersions respectively.
8. wall-hanging projection arrangement as claimed in claim 7 is characterized in that,
The complementary material of said two kinds of chromatic dispersions is: crown glass and flint glass.
9. wall-hanging projection arrangement as claimed in claim 1 is characterized in that, said light source is a LASER Light Source, and said light flip element is:
Be arranged at after the said projection lens and be the holographic mirror that predetermined angular is provided with the optical axis of said projection lens.
10. wall-hanging projection arrangement as claimed in claim 1 is characterized in that:
Said light source is a solid state light emitter;
Said solid state light emitter is the light source that LED source, LASER Light Source or pumping fluorescent powder produce.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101367288A CN102636948A (en) | 2012-05-04 | 2012-05-04 | Wall-mounted type projecting apparatus |
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| CN2012101367288A CN102636948A (en) | 2012-05-04 | 2012-05-04 | Wall-mounted type projecting apparatus |
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| CN102636948A true CN102636948A (en) | 2012-08-15 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800909A (en) * | 2004-12-21 | 2006-07-12 | Lg电子株式会社 | Projection lens unit and thin projector using the same |
| CN200941129Y (en) * | 2006-08-28 | 2007-08-29 | 利达光电股份有限公司 | Zoom projecting lens |
| CN101089721A (en) * | 2006-06-16 | 2007-12-19 | 昂纳明达数字显示技术（深圳）有限公司 | Front projection display device |
| US20090310092A1 (en) * | 2008-06-17 | 2009-12-17 | Seiko Epson Corporation | Projector |
| CN101650493A (en) * | 2008-08-13 | 2010-02-17 | 深圳Tcl新技术有限公司 | Backlighting method, backlighting system and display system |
| CN102087463A (en) * | 2007-02-27 | 2011-06-08 | 株式会社日立制作所 | Projection type display apparatus |
| CN102385234A (en) * | 2011-10-27 | 2012-03-21 | 海信集团有限公司 | Wall-mounted projector |
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- 2012-05-04 CN CN2012101367288A patent/CN102636948A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1800909A (en) * | 2004-12-21 | 2006-07-12 | Lg电子株式会社 | Projection lens unit and thin projector using the same |
| CN101089721A (en) * | 2006-06-16 | 2007-12-19 | 昂纳明达数字显示技术（深圳）有限公司 | Front projection display device |
| CN200941129Y (en) * | 2006-08-28 | 2007-08-29 | 利达光电股份有限公司 | Zoom projecting lens |
| CN102087463A (en) * | 2007-02-27 | 2011-06-08 | 株式会社日立制作所 | Projection type display apparatus |
| US20090310092A1 (en) * | 2008-06-17 | 2009-12-17 | Seiko Epson Corporation | Projector |
| CN101650493A (en) * | 2008-08-13 | 2010-02-17 | 深圳Tcl新技术有限公司 | Backlighting method, backlighting system and display system |
| CN102385234A (en) * | 2011-10-27 | 2012-03-21 | 海信集团有限公司 | Wall-mounted projector |
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Application publication date: 20120815 |