CN105629482A - Light equalizing device and laser projection device - Google Patents
Light equalizing device and laser projection device Download PDFInfo
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- CN105629482A CN105629482A CN201610160366.4A CN201610160366A CN105629482A CN 105629482 A CN105629482 A CN 105629482A CN 201610160366 A CN201610160366 A CN 201610160366A CN 105629482 A CN105629482 A CN 105629482A
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- protective housing
- face
- light rod
- light
- dodging device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0927—Systems for changing the beam intensity distribution, e.g. Gaussian to top-hat
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
- G02B27/0938—Using specific optical elements
- G02B27/0994—Fibers, light pipes
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/208—Homogenising, shaping of the illumination light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
An embodiment of the invention provides a light equalizing device and a laser projection device, relates to the technical field of laser and is to prevent the light equalizing device from being damaged due to external force extrusion. The light equalizing device comprises a protection housing and a light rod. The protection housing forms an accommodation cavity, the two ends of which are opened. The light rod is arranged in the accommodation cavity, and openings at the two ends of the accommodation cavity expose an incidence end and an emitting end of the light rod respectively. At least one surface of the protection housing is provided with an elastic piece, wherein a first end of the elastic piece is fixedly arranged to the protection housing, and a second end of the elastic piece extends to the inner portion of the accommodation cavity and is abutted against the light rod. The light equalizing device is used for the manufacture of the laser projection device.
Description
Technical field
The present invention relates to laser technology field, particularly relate to a kind of dodging device and laser projection device.
Background technology
Laser, as a kind of excellent coherent light, has monochromaticity good, high directivity, optical throughput advantages of higher, and at present by multiple fields widespread uses such as industry, medical treatment, scientific research, information, military affairs, in display field, laser is also more and more general as light source applications.
Owing to laser is high-energy light beam guiding, optic path forms small light spot through light beam shaping usually, thus energy density is bigger, if but light spot energy density unevenness, likely impact excessive formation in the local of optical mirror slip on the one hand to burn, meanwhile, entering light machine lighting system and after projection, causing the ununiformity of brightness of image. Thus, it would be desirable to be the light beam of evenization for the utilization of laser light beam. In laser is applied, even smooth parts are one of extremely important element devices, such as light rod, diffusion sheet or fly's-eye lens etc. Wherein, light rod is comparatively conventional, is usually located at light source three primary colours output terminal, and the inlet end of light machine lighting system. The light entering light rod inner can repeatedly be reflected by light rod, thus light beam is carried out evenization, simultaneously according to optical extend invariance principle, by the adjustment of light rod incident end face sum outgoing end area being changed by the dispersion angle of light. Light rod all needs to contact with other structures in the process installing fixing and adjustment, and produces interaction force, but, light rod is usually made by glass material and is formed, easily fragmentation, so needing to be protected by light rod, prevents light rod broken. Existing a kind of operator guards as shown in Figure 1, comprises the non-pressurized body 10 that a sheet metal process is formed, the side of this housing is reserved with a gap 11, and this gap reserved is because the processing tolerance of sheet metal component is relatively big, prevents light rod from cannot put into enclosure interior. But, gap is left in the housing side formed due to this kind of operator guards, so light rod is being applied reactive force; when especially the position of light rod being regulated; the sidewall on both sides, gap can because discontinuity, and the degree producing deformation is different, and then misplaces. And the sidewall that dislocation occurs can extrude light rod, and then cause light rod broken.
Summary of the invention
Embodiments of the invention provide a kind of dodging device and laser projection device, damage during for avoiding dodging device to extrude by external force.
For achieving the above object, embodiments of the invention adopt following technical scheme:
First aspect, it is provided that a kind of dodging device, comprising: protective housing and light rod;
Described protective housing forms the accommodating cavity that two ends have opening, and the excellent both ends open being positioned at described accommodating cavity and described accommodating cavity of described light exposes incidence end and the outgoing end of described light rod respectively; Being provided with elasticity sheet at least one face of described protective housing, the first end of described elasticity sheet is fixed in described protective housing, and the 2nd end of described elasticity sheet extends to described accommodating cavity inside and is resisted against on described light rod.
Second aspect, it is provided that a kind of laser projection device, comprises the dodging device described in first aspect.
The dodging device that the embodiment of the present invention provides comprises: protective housing and light rod, wherein, protective housing forms the accommodating cavity that two ends have opening, the excellent both ends open being positioned at described accommodating cavity and accommodating cavity of light exposes incidence end and the outgoing end of described light rod respectively, and at least one face of protective housing is provided with elasticity sheet, the first end of elasticity sheet is fixed in described protective housing, 2nd end of elasticity sheet extends to accommodating cavity inside and is resisted against on described light rod, because the both ends open of protective housing formation accommodating cavity exposes incidence end and the outgoing end of light rod respectively, so the incidence end of light rod and outgoing end can be avoided to be blocked, and because at least one face of protective housing is provided with elasticity sheet, elasticity sheet one end is fixed, the other end is resisted against on light rod, so fixing light rod can be realized by elasticity sheet, so above-mentioned dodging device first can normal operation, again because light rod is positioned at protective housing inside, so when dodging device is subject to external force pressurization, external force can be made first to act in protective housing, avoid holding breakable light rod to damage, so damaging when the invention process can avoid dodging device to extrude by external force.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, it is briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic structure figure of operator guards in prior art;
The schematic structure figure of the dodging device that Fig. 2 provides for the embodiment of the present invention;
One of schematic mechanism figure of the protective housing that Fig. 3 provides for the embodiment of the present invention;
The two of the schematic mechanism figure of the protective housing that Fig. 4 provides for the embodiment of the present invention;
The three of the schematic mechanism figure of the protective housing that Fig. 5 provides for the embodiment of the present invention;
The side-view of the protective housing that Fig. 6 provides for the embodiment of the present invention and light rod;
Another kind of protective housing that Fig. 7 provides for the embodiment of the present invention and light rod side-view;
Another protective housing that Fig. 8 provides for the embodiment of the present invention and light rod side-view;
The schematic structure figure of another kind of dodging device that Fig. 9 provides for the embodiment of the present invention;
The schematic structure figure of the laser projection device that Figure 10 provides for the embodiment of the present invention.
Reference numeral:
Protective housing-21; Light rod-22; The elasticity sheet-211 of protective housing;
Adjustment structure 23; Junction-30; Window-212; Bulge-structure-213; Threaded hole-231;
Set screw-232; The elasticity sheet 233 of adjustment structure;
The open end-face-61 of the first end opening of protective housing;
The open end-face-62 of the 2nd end opening of protective housing; The incidence end-221 of light rod;
The outgoing end-222 of light rod; LASER Light Source-91; Light machine-92; Camera lens-93;
Transparency screen-94; Laser apparatus-911; Fluorescent wheel-912; Colour filter wheel-913;
Dodging device-921; Light path devices-922; Dmd chip-923.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only the present invention's part embodiment, instead of whole embodiments. Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
It should be noted that, term in the application " on ", D score, "front", "rear", "left", "right", " top ", " end ", " interior ", the orientation of the instruction such as " outward " or position are closed is based on orientation shown in the drawings or position relation, it is only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device referred to or element must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as limitation of the present invention.
Embodiment one,
Embodiments of the invention provide a kind of dodging device, with reference to, shown in Fig. 2, this dodging device comprises: protective housing 21 and light rod 22.
Wherein, protective housing 21 forms the accommodating cavity that two ends have opening, and the both ends open that light rod 22 is positioned at accommodating cavity and described accommodating cavity exposes incidence end and the outgoing end of described light rod 22 respectively; Being provided with elasticity sheet 211 at least one face of protective housing 21, the first end of elasticity sheet 211 is fixed in protective housing 21, and the 2nd end of elasticity sheet 211 extends to described accommodating cavity inside and is resisted against on light rod 22.
It should be noted that, the metal protection housing that the protective housing 21 in the embodiment of the present invention can be formed in one. Such as: the metallic substance such as copper, aluminium, alloy are formed above-mentioned protective housing by casting process. In addition, the nonmetal protective housing that the protective housing 21 in the embodiment of the present invention can also be formed in one, such as: the non-metallic material such as plastics, pottery, rubber, resin are formed above-mentioned protective housing by Shooting Technique. Further, above-mentioned protective housing can also be made by one piece of board-like material and be formed. Preferably, board-like material is sheet metal, and is made the protective housing formed in the embodiment of the present invention by sheet metal process. Its making processes is specially: first obtain, by shearing technique, the rectangular plate adapted with protective housing size; then the position forming elasticity sheet is being needed to remove unnecessary sheet material by punching technology; the reserved sheet material being formed elasticity sheet is carried out punching press again and forms elasticity sheet, the protective housing being finally bent to form in the embodiment of the present invention by sheet material. Compared to integrated protective housing, form the protective housing technical process in the embodiment of the present invention by one piece of board making simple, it is preferred to the embodiment of the present invention in protective housing made by one piece of board-like material and formed.
If protective housing 21 is made by one or more board-like material and formed, then protective housing has the junction of board-like material. Concrete, with reference to, shown in Fig. 3, protective housing 21 is made by least one piece of board-like material and is formed, and board-like material overlaps in junction 30 and mutually fixes.
Wherein, Fig. 3 is formed as example with protective housing by one piece of board-like material making and is described, therefore protective housing 21 only has a junction 30. And if when protective housing 21 is spliced to form by two or more board-like material, then protective housing 21 having the junction 30 of more than two. Above-mentioned board-like material in junction 30 can by glutinous connecing, welding, the mode such as riveted joint is fixed. Preferably, it is fixed by spot-welding technology. Such as: carry out three spot welding by spot weld at the edge, two ends of sheet material and the mid-way of junction. Can when protective housing be subject to external force extruding by making junction overlap joint and mutually fix; the contact surface that power is formed along overlap joint is extended buffering; not easily there is dislocation deformation in the sheet material on both sides, junction, it is possible to avoids the rod of the light in protective housing to damage by external force pressurization further.
Also it should be noted that, Fig. 2,3 is provided with elasticity sheet 211 on the end face of only protective housing 21 and is described, but the embodiment of the present invention is not limited thereto. When the protective housing 21 that the embodiment of the present invention provides only comprises an elasticity sheet 211, this elasticity sheet 211 can be arranged in any one face in end face, bottom surface, face, left side, face, right side. In addition; the embodiment of the present invention does not limit the quantity of elasticity sheet 211 yet; protective housing 21 can also comprise the elasticity sheet 211 of other quantity, and such as: comprise four elasticity sheets 211, these four elasticity sheets 211 can lay respectively at the end face of protective housing, bottom surface, face, left side and face, right side. Obviously; protective housing 21 comprises more many elasticity sheets 211; then protective housing 21 and light rod 22 is fixing more stable, but manufacture craft difficulty also can increase along with the increasing number of elasticity sheet 211, so when can arrange according to actual needs in actual use and the elasticity sheet 211 of quantity.
Further, the light rod in above-described embodiment can be solid can also be hollow (being described for light rod as hollow in Fig. 2). When light rod is solid, it is possible to adopt transparent material (such as: glass, optical plastics, transparent inorganic pottery etc.) to be formed according to the form cutting of default light rod; And when light rod is hollow, it is possible to formed the shape in each face of light rod by reflection material (such as: reflecting piece, speculum etc.) cutting, each face then formed by cutting is enclosed and forms light rod. The concrete structure of light rod is not limited by the embodiment of the present invention.
The dodging device that the embodiment of the present invention provides comprises: protective housing and light rod, wherein, protective housing forms the accommodating cavity that two ends have opening, the excellent both ends open being positioned at described accommodating cavity and accommodating cavity of light exposes incidence end and the outgoing end of described light rod respectively, and at least one face of protective housing is provided with elasticity sheet, the first end of elasticity sheet is fixed in described protective housing, 2nd end of elasticity sheet extends to accommodating cavity inside and is resisted against on described light rod, because the both ends open of protective housing formation accommodating cavity exposes incidence end and the outgoing end of light rod respectively, so the incidence end of light rod and outgoing end can be avoided to be blocked, and because at least one face of protective housing is provided with elasticity sheet, elasticity sheet one end is fixed, the other end is resisted against on light rod, so fixing light rod can be realized by elasticity sheet, so above-mentioned dodging device first can normal operation, again because light rod is positioned at protective housing inside, so when dodging device is subject to external force pressurization, external force can be made first to act in protective housing, avoid holding breakable light rod to damage, so damaging when the invention process can avoid dodging device to extrude by external force.
Embodiment two,
On the basis of the embodiment of the present invention one, the embodiment of the present invention also provides another kind of dodging device further. The difference of the dodging device that itself and the invention process one provide is, protective housing 21 connects with light rod 22 is glutinous.
Owing to needing to put into light rod 22 accommodating cavity that protective housing 21 is formed; so the volume that usual protective housing 21 forms accommodating space is greater than the volume of light rod 22; although can be fixed by elasticity sheet 211; but light rod 22 can also rock in the accommodating cavity that protective housing 21 is formed; affect dodging device to the utilization ratio of light; therefore, it is also possible to further protective housing 21 and light rod 22 are carried out glutinous connecing so that fixing of light rod is more reliable.
Further, with reference to shown in Fig. 4, at least one face of protective housing 21 is provided with and windows 212, window 212 for injecting light-sensitive emulsion between light rod 22 sides and protective housing 21 inwall and be cured by light-sensitive emulsion.
The embodiment of the present invention does not limit the particular location windowed and the quantity windowed, is as the criterion so that light-sensitive emulsion can be injected and light-sensitive emulsion is cured.
Inject light-sensitive emulsion process be specially: first by window 212 to light rod 22 sides and protective housing 21 inwall between inject light-sensitive emulsion; make light-sensitive emulsion fill the gap between the side of light rod 21 and the inwall of protective housing, then windowing 212, light-sensitive emulsion is cured by the position such as the both ends open of protective housing 21 by illumination.
212 can reduce by windowing in the upper setting of protective housing 21 and glutinous connect protective housing 21 and technology difficulty during light rod 22, and light-sensitive emulsion can be avoided to pollute incidence end and the outgoing end of light rod 22.
Embodiment three,
On the basis of the embodiment of the present invention one, the embodiment of the present invention also provides another kind of dodging device further. Concrete, with reference to shown in Fig. 5, the outside surface of protective housing 21 being provided with at least one bulge-structure 213, bulge-structure 213 is for positioning dodging device when installing dodging device.
Dodging device presets as its position in the optical path of optics; therefore; light rod is placed into after protective housing forms dodging device and also needs the predeterminated position that dodging device is put into light path; position according to bulge-structure dodging device can be positioned in dodging device installation process by arranging bulge-structure 213, thus accurately dodging device is laid predeterminated position in the optical path.
Also it should be noted that; Fig. 5 is arranged at protective housing bottom outer surface for bulge-structure 213 be described; but as the restriction of the embodiment of the present invention, bulge-structure 213 can not can also be arranged at by the embodiment of the present invention other positions of protective housing. In addition, the protective housing in the embodiment of the present invention also can arrange multiple bulge-structure, such as: 2. More accurate by arranging the location that multiple bulge-structure can also make dodging device in installation process further.
Embodiment four,
On the basis of above-mentioned any embodiment, the embodiment of the present invention is also further provides another kind of dodging device. Concrete, shown in reference Fig. 6, the distance that the distance between the open end-face (61,62) at protective housing 21 two ends is less than between the incidence end 221 of light rod 22 and outgoing end 222.
In the installation process of dodging device, the location of dodging device be support on a body a certain parts as a reference, it is thus desirable to dodging device is fitted, these parts could ensure that the light rod position of dodging device is accurate. But protective housing is generally can manufacturing part in actual use; and the processing tolerance of can manufacturing part is greater than the processing tolerance of optics (light rod) usually; if make protective housing and light rod according to identical size; then may make the distance that the distance between the opening at protective housing two ends is greater than between the incidence end of light rod and outgoing end; and then when dodging device is installed fixing; protective housing affects the location of dodging device, and then affects the location of light rod. It is preferred to, make the distance that the distance between the opening at protective housing two ends is less than between the incidence end of light rod and outgoing end, thus avoid the generation of the above-mentioned orientation problem affecting light rod.
Concrete; with reference to shown in Fig. 7; the open end-face 61 of the first end opening of protective housing 21 aligns with the incidence end 221 of light rod 22, and the open end-face 62 of the 2nd end opening of protective housing 21 is between the face and the face at outgoing end 222 place at incidence end 221 place of light rod 22. Or; as shown in Figure 8; the open end-face 61 of the first end opening of protective housing 21 aligns with the outgoing end 222 of light rod 22, and the open end-face 62 of the 2nd end opening of protective housing 21 is between the face and the face at outgoing end 222 place at incidence end 221 place of light rod 22.
Embodiment five,
On the basis of above-mentioned any embodiment, the embodiment of the present invention is also further provides another kind of dodging device. Concrete, with reference to, shown in Fig. 9, dodging device also comprises: adjustment structure 23;
Adjustment structure 23 forms the accommodating cavity that two ends have opening, protective housing 21 is positioned at accommodating cavity, and the both ends open of accommodating cavity is relative with the both ends open of the accommodating cavity that protective housing 21 is formed respectively, the set screw 232 being provided with threaded hole 231 at least one face of adjustment structure 23 and adapt with threaded hole 231, set screw 232 is for extruding protective housing 21 through threaded hole 232, the face that adjustment structure 23 is relative with the face at threaded hole 231 place is provided with elasticity sheet 233, the first end of elasticity sheet 233 is fixed in adjustment structure 23, 2nd end of elasticity sheet 233 is resisted against in protective housing 21.
Its control method is: when light rod 22 is regulated downwards by needs, the set screw 232 at adjustment structure top can be positioned at by turning clockwise, set screw 232 is advanced in accommodating cavity, and then extruding protective housing 21, protective housing 22 extruding is positioned at the elasticity sheet 233 in the low portion of adjustment structure 23, there is deformation in elasticity sheet 233, protective housing 21 drives interior lights rod 22 to move down; When light rod 22 is upwards regulated by needs; the set screw 232 that can be positioned at adjustment structure top by being rotated counterclockwise; the length making set screw 232 stretch into accommodating cavity part reduces; protective housing 21 moves up under the effect of the elastic force upwards of the elasticity sheet 233 being positioned at the low portion of adjustment structure 23, thus drives light rod 22 to move up. With reason, when light rod 22 is regulated by needs to the left, it is possible to be positioned at the set screw 232 on the right side of adjustment structure 23 by turning clockwise, when light rod 22 is regulated to the right by needs, it is possible to by being rotated counterclockwise the set screw 232 being positioned on the right side of adjustment structure 23.
From above-mentioned regulate process: the reactive force that in regulate process, the elasticity sheet 233 of set screw 232 and adjustment structure produces is all act in protective housing 21; and drive light rod 22 to move by protective housing 21; so protective housing can avoid external force to act directly on light rod 22; therefore dodging device can be regulated by above-mentioned adjustment structure, and light rod can be avoided in regulate process by external force breakage by protective housing.
Embodiment six,
Yet another embodiment of the invention provides a kind of laser projection device, and this laser projection device comprises the dodging device that above-mentioned any embodiment provides. Exemplary, this laser projection device can be laser television, projector etc.
Concrete, with reference to, shown in Figure 10, laser projection device comprises: LASER Light Source 91, light machine 92, camera lens 93 and transparency screen 94. Wherein, LASER Light Source 91 comprises: the parts such as laser apparatus 911, fluorescent wheel 912 and colour filter wheel 913, laser apparatus 911 can be one-wavelength laser device, it can also be two-color laser device, fluorescent wheel 912 is provided with at least one fluorescent material, and the laser that laser apparatus 911 sends can be mixed to form white light with the exciting light that fluorescent wheel produces. Colour filter wheel 913 is for filtering mixed light, it is to increase fluorescence purity. Light machine 92 comprises: (English full name: DigitalMicromirrorDevice, is called for short: DMD) chip 923 parts such as grade for dodging device 921, light path devices 922 and digital micro-mirror. Wherein, the dodging device that dodging device provides for above-mentioned any embodiment. The light beam that colour filter wheel sequential exports enters dodging device 921 to carry out evenization and/or changes dispersion angle, make the requirement with incident angle that distributed by beam energy that light beam meets DMD, light is conducted to dmd chip by logical light path devices 922 again, dmd chip receives three primary colours light, and rotate within the specific limits under the driving of electric current, regulate the light quantity entering camera lens 93, thus make camera lens presents different colors. Camera lens 93 receives the light after DMD modulates, and is finally transmitted on projection screen 94 through process such as the refraction of multiple optical mirror slip, reflections and forms project image.
The dodging device of the laser projection device that the embodiment of the present invention provides comprises: protective housing and light rod, wherein, protective housing forms the accommodating cavity that two ends have opening, the excellent both ends open being positioned at accommodating cavity and accommodating cavity of light exposes incidence end and the outgoing end of light rod respectively, and at least one face of protective housing is provided with elasticity sheet, the first end of elasticity sheet is fixed in protective housing, 2nd end of elasticity sheet extends to accommodating cavity inside and is resisted against on light rod, because the both ends open of protective housing formation accommodating cavity exposes incidence end and the outgoing end of light rod respectively, so the incidence end of light rod and outgoing end can be avoided to be blocked, and because at least one face of protective housing is provided with elasticity sheet, elasticity sheet one end is fixed, the other end is resisted against on light rod, so fixing light rod can be realized by elasticity sheet, so above-mentioned dodging device first can normal operation, again because light rod is positioned at protective housing inside, so when dodging device is subject to external force pressurization, external force can be made first to act in protective housing, avoid holding breakable light rod to damage, so damaging when the invention process can avoid dodging device to extrude by external force.
The above; it is only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention. Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (10)
1. a dodging device, it is characterised in that, comprising: protective housing and light rod;
Described protective housing forms the accommodating cavity that two ends have opening, and the excellent both ends open being positioned at described accommodating cavity and described accommodating cavity of described light exposes incidence end and the outgoing end of described light rod respectively; Being provided with elasticity sheet at least one face of described protective housing, the first end of described elasticity sheet is fixed in described protective housing, and the 2nd end of described elasticity sheet extends to described accommodating cavity inside and is resisted against on described light rod.
2. dodging device according to claim 1, it is characterised in that, described protective housing is made by least one piece of board-like material and is formed, and described board-like material is at junction overlap joint and fixes.
3. dodging device according to claim 1, it is characterised in that, described protective housing and light rod stick and connect.
4. dodging device according to claim 3; it is characterized in that; at least one face of described protective housing is provided with and windows, described in window for injecting light-sensitive emulsion between described light rod side and described protective housing inwall and described light-sensitive emulsion is cured.
5. dodging device according to claim 1, it is characterised in that, the outside surface of described protective housing is provided with at least one bulge-structure, described bulge-structure is used for being positioned by described dodging device when installing described dodging device.
6. dodging device according to claim 1, it is characterised in that, described dodging device also comprises: adjustment structure;
Described adjustment structure forms the accommodating cavity that two ends have opening, described protective housing is positioned at described accommodating cavity, and the both ends open of described accommodating cavity is relative with the both ends open of the accommodating cavity that described protective housing is formed respectively, the set screw being provided with threaded hole at least one face of described adjustment structure and adapt with described threaded hole, described set screw is for extruding described protective housing through described threaded hole, the face that described adjustment structure is relative with the face at described threaded hole place is provided with elasticity sheet, the first end of described elasticity sheet is fixed in described adjustment structure, 2nd end of described elasticity sheet is resisted against in described protective housing.
7. dodging device according to the arbitrary item of claim 1-6, it is characterised in that, the distance that the distance between the opening at described protective housing two ends is less than between the incidence end of described light rod and outgoing end.
8. dodging device according to claim 7; it is characterized in that; the open end-face of the first end opening of described protective housing aligns with the incidence end of described light rod, and the open end-face of the 2nd end opening of described protective housing is between the face and the face at outgoing end place at the incidence end place of described light rod.
9. dodging device according to claim 7; it is characterized in that; the open end-face of the first end opening of described protective housing aligns with the outgoing end of described light rod, and the open end-face of the 2nd end opening of described protective housing is between the face and the face at outgoing end place at the incidence end place of described light rod.
10. a laser projection device, it is characterised in that, comprise the dodging device described in the arbitrary item of claim 1-9.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160366.4A CN105629482A (en) | 2016-03-21 | 2016-03-21 | Light equalizing device and laser projection device |
| PCT/CN2016/104386 WO2017161890A1 (en) | 2016-03-21 | 2016-11-02 | Diffuser and laser projection apparatus |
| US15/310,526 US10222687B2 (en) | 2016-03-21 | 2016-11-02 | Light homogenizing device and laser projection apparatus |
| EP16202976.3A EP3223071B1 (en) | 2016-03-21 | 2016-12-08 | Light homogenizing device and laser projection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610160366.4A CN105629482A (en) | 2016-03-21 | 2016-03-21 | Light equalizing device and laser projection device |
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| Publication Number | Publication Date |
|---|---|
| CN105629482A true CN105629482A (en) | 2016-06-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610160366.4A Pending CN105629482A (en) | 2016-03-21 | 2016-03-21 | Light equalizing device and laser projection device |
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| Country | Link |
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| CN (1) | CN105629482A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017161890A1 (en) * | 2016-03-21 | 2017-09-28 | 海信集团有限公司 | Diffuser and laser projection apparatus |
| WO2020244378A1 (en) * | 2019-06-03 | 2020-12-10 | 青岛海信激光显示股份有限公司 | Laser projection device |
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