CN210222464U - Light path sealing device for digital projector and light path system thereof - Google Patents
Light path sealing device for digital projector and light path system thereof Download PDFInfo
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- CN210222464U CN210222464U CN201921040312.XU CN201921040312U CN210222464U CN 210222464 U CN210222464 U CN 210222464U CN 201921040312 U CN201921040312 U CN 201921040312U CN 210222464 U CN210222464 U CN 210222464U
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Abstract
The utility model discloses a light path sealing device and a light path system thereof for a digital projector, wherein the light path sealing device comprises a fixing piece with a through hole; the optical path sealing device comprises a first annular adjusting piece, a second annular adjusting piece, a first annular elastic piece and a second annular elastic piece; one end of the first annular adjusting piece is inserted into the through hole from one end of the fixing piece; one end of the second annular adjusting piece is sleeved on the outer side wall of the other end of the fixing piece; the first annular elastic piece is positioned at the other end of the first annular adjusting piece and protrudes out of the end surface of the first annular adjusting piece; the second annular elastic piece is positioned at the other end of the second annular adjusting piece and protrudes out of the end surface of the second annular adjusting piece; the inner side walls of the fixing piece, the first annular adjusting piece and the second annular adjusting piece are covered with extinction coatings. The sealing device can avoid dust deposition on the light source lens and the light bar in the light pipe, and can also avoid reflection interference.
Description
Technical Field
The utility model relates to a light path system light path sealing technical field, more specifically, the utility model relates to a light path sealing device and light path system for digital projector.
Background
The light source and the light pipe are important components of the digital cinema projector, and directly influence the optical visual effect of the digital cinema projector.
In the prior art, the light source and the light pipe are connected in a right-angle butt joint mode, and a mounting gap is reserved in the light source and the light pipe. Therefore, fine dust enters the digital cinema projector and adheres to the outer surfaces of the light source outlet lens and the light bar in the light pipe, the light transmittance of the light source outlet lens and the transmission efficiency of a light path are influenced, the projection brightness of the cinema projection is reduced, and the influence is increasingly highlighted along with the time; meanwhile, the accumulation of dust can cause excessive heat to continue to be generated on the light source and the light pipe, so that the related parts are damaged, and the service life of the related parts is shortened. In addition, since the light source needs to be replaced periodically and the position where the light source and the light pipe are installed often needs to be finely adjusted to ensure the alignment of the light path, the problem of dust accumulation cannot be solved by sealing the light source and the light pipe through hard connection.
Therefore, in order to overcome the technical defects of the prior art, a novel light path sealing device for a digital projector and a light path system thereof need to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an optical path sealing device and optical path system for digital projector. The light path sealing device can effectively prevent dust from being deposited on the light source lens and the light bar in the light pipe, improve the light transmittance of the light source lens, increase the projection brightness of film projection, avoid damage to related parts due to excessive local heat and prolong the service life of the parts. And the light path sealing device also effectively improves the flexibility of fine adjustment operation, increases the adjustment range and can avoid light reflection interference.
In order to achieve one of the above objects, the present invention provides a light path sealing device for a digital projector, the light path sealing device including a fixing member having a through hole; the optical path sealing device also comprises a first annular adjusting piece, a second annular adjusting piece, a first annular elastic piece and a second annular elastic piece; one end of the first annular adjusting piece is inserted into the through hole from one end of the fixing piece; one end of the second annular adjusting piece is sleeved on the outer side wall of the other end of the fixing piece; the first annular elastic piece is positioned at the other end of the first annular adjusting piece and protrudes out of the end surface of the first annular adjusting piece; the second annular elastic piece is positioned at the other end of the second annular adjusting piece and protrudes out of the end surface of the second annular adjusting piece; the inner side walls of the fixing piece, the first annular adjusting piece and the second annular adjusting piece are covered with extinction coatings.
In addition, preferably, a first groove is configured on an end surface of the first annular adjusting piece away from the fixing piece; the first annular elastic piece is arranged in the first groove; a second groove is arranged on the end face, far away from the fixing piece, of the second annular adjusting piece; the second annular elastic member is disposed in the second groove.
In addition, preferably, the optical path sealing device further includes a bottom plate surrounding and fixing the outer side wall of the fixing member.
In addition, preferably, a fine thread structure which is matched with each other is arranged between the surface of the outer side wall of the first annular adjusting piece and the corresponding inner side wall of the through hole; and fine thread structures matched with each other are arranged between the surface of the inner side wall of the second annular adjusting part and the corresponding outer side wall of the through hole.
In addition, preferably, the first annular adjusting element includes a first straight portion and a first bent portion formed by bending an end of the first straight portion away from the fixing element outward, and the first annular elastic element is located on the first bent portion.
In addition, preferably, the second annular adjusting element includes a second straight portion and a second bent portion formed by bending an end of the second straight portion away from the fixing element inward, and the second annular elastic element is located on the second bent portion.
Further, it is preferable that the material of the matte coating layer is a matte ink containing iron oxide black.
According to another object of the present invention, there is provided an optical path system, including: light source: light pipe connected to the exit end of the light source: a light processing engine connected to the outlet end of the light pipe; the lens is connected with the outlet end of the light processing engine; and the optical path sealing device as described above; the light path sealing device is configured to be used for sealing and connecting the outlet end of the light source and the inlet end of the light pipe.
In addition, it is preferable that the first annular elastic member of the light path sealing device is connected to the outlet end of the light source in a sealing manner; and the second annular elastic part of the light path sealing device is connected with the inlet end of the light pipe in a sealing way.
The utility model has the advantages as follows:
1. the utility model provides a light path sealing device can effectively avoid light source export lens and fluorescent lamp interior optical wand deposit dust, improves the luminousness of light source lens, increases the projection luminance that the film was shone, avoids the too much damage that causes to relevant parts of local heat moreover, prolongs the life of relevant parts. Meanwhile, the light path sealing device can effectively improve the flexibility of fine adjustment operation, increase the adjustment range and avoid light reflection interference.
2. The utility model provides a light path sealing device disposes fine tooth helicitic texture, improves sealing device's adjustment precision, and good damping of guaranteeing is felt, improves the auto-lock reliability simultaneously.
3. The utility model provides a light path sealing device disposes straight portion and kink, and first cyclic annular elastic component and the cyclic annular elastic component of second all set up on the kink, can increase the area of first cyclic annular elastic component and the cyclic annular elastic component of second, enlarges first cyclic annular elastic component and light source exit end simultaneously, the area of contact of the cyclic annular elastic component of second and fluorescent lamp entry end for it is better to compress tightly the effect, further improves light path sealing device's sealed effect.
The advantages of the optical path sealing device and the optical path system comprising the optical path sealing device are the same compared with the prior art, and are not described in detail herein.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 is an exploded schematic view of an optical path sealing device according to an embodiment of the present invention.
Fig. 2 is a schematic view illustrating an assembly structure of an optical path sealing device according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of an optical system according to an embodiment of the present invention
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
In order to explain the present invention more clearly, the present invention will be further described with reference to the preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the invention.
In the prior art, the light source and the light pipe are connected in a right-angle butt joint mode, and a mounting gap is reserved in the light source and the light pipe. Therefore, fine dust enters the digital cinema projector and adheres to the outer surfaces of the light source outlet lens and the light bar in the light pipe, the light transmittance of the light source outlet lens and the transmission efficiency of a light path are influenced, the projection brightness of the cinema projection is reduced, and the influence is increasingly highlighted along with the time; meanwhile, the accumulation of dust can cause excessive heat to continue to be generated on the light source and the light pipe, so that the related parts are damaged, and the service life of the related parts is shortened. In addition, since the light source needs to be replaced periodically, and the installation position of the light source and the light pipe needs to be adjusted finely frequently to ensure the alignment of the light path, the problem of dust accumulation cannot be solved by sealing the light source and the light pipe through hard connection. Therefore, in order to solve the above problems, the present invention provides a preferred embodiment of a light path sealing device 10 for a digital projector, as shown in fig. 1 to 3, the light path sealing device 10 includes a fixing member 11 having a through hole 12; the optical path sealing device 10 further includes a first annular adjusting member 13, a second annular adjusting member 14, a first annular elastic member 15, and a second annular elastic member 16; one end of the first annular adjusting piece 13 is inserted into the through hole 12 from one end of the fixing piece 11; one end of the second annular adjusting part 14 is sleeved on the outer side wall of the other end of the fixing part 11; the first annular elastic part 15 is positioned at the other end of the first annular adjusting part 13 and protrudes out of the end surface of the first annular adjusting part 13; the second annular elastic member 16 is located at the other end of the second annular adjusting member 14 and protrudes from the end surface of the second annular adjusting member 14; the first annular elastic member 15 is used for pressing the end face of the outlet end 21 of the light source 20 to play a role of sealing connection, and the second annular elastic member 16 is used for pressing the end face of the inlet end 31 of the light pipe 30 and surrounding the end face of the inlet end 31 of the light pipe to play a role of sealing connection. The first annular elastic member 15 and the second annular elastic member 16 may be elastic washers, for example. The inner side walls of the fixing member 11, the first annular adjusting member 13 and the second annular adjusting member 14 are all covered with a mat coating. Furthermore, the material of the extinction coating is extinction printing ink containing iron oxide black, and light reflection interference can be effectively prevented.
With the optical path sealing device 10 of this preferred embodiment, as shown in fig. 1-2, first, the first annular adjusting member 13 is inserted into the through hole 12 of the fixing member 11, the second annular adjusting member 14 is sleeved on the outer side wall of the fixing member 11, then the first annular elastic member 15 is tightly pressed and hermetically connected with the end surface of the outlet end 21 of the light source 20, and the second annular elastic member 16 is tightly pressed and hermetically connected with the end surface of the inlet end 31 of the light pipe, compared with the case where the first annular adjusting member and the second annular adjusting member are both arranged in the through hole of the fixing member or both sleeved on the outer side wall of the fixing member, this structure enables the first annular adjusting member and the second annular adjusting member not to interfere with each other during the fine adjustment operation, thereby effectively improving the flexibility of the fine adjustment operation and increasing the adjustment range; meanwhile, dust deposition on the light source outlet lens and the light bar in the light tube can be effectively avoided, the light transmittance of the light source lens is improved, the projection brightness of film projection is increased, a user does not need to frequently check whether the dust deposition exists on the light bar in the light tube and the light source outlet lens, damage to relevant parts due to excessive local heat is avoided, and the service life of the relevant parts is prolonged. In addition, the inner side walls of the fixing part 11, the first annular adjusting part 13 and the second annular adjusting part 14 are covered with extinction coatings, so that light reflection interference can be effectively prevented.
Further preferably, the light path sealing device 10 further includes a bottom plate 17 surrounding and fixed to an outer side wall of the fixing member 11, and the bottom plate is mountable and fixed to a projector base and a whole machine bracket. As shown in fig. 1-2, the bottom plate 17 is provided with a plurality of through holes, the outer side wall of the fixing member 11 is correspondingly provided with a plurality of through holes, and the fixing member 11 and the bottom plate 17 are bolted and fixed by bolts. In addition, a fine thread structure matched with each other is arranged between the surface of the outer side wall of the first annular adjusting piece 13 and the corresponding inner side wall of the through hole 12; fine thread structures which are matched with each other are arranged between the surface of the inner side wall of the second annular adjusting part 14 and the corresponding outer side wall of the through hole 12, the fine thread structures can effectively improve the adjusting precision of the light path sealing device, good damping feeling is ensured, and meanwhile the self-locking reliability is improved.
In order to achieve the purpose of the present invention, the present invention further provides another preferred embodiment, wherein a first groove 131 is configured on the end surface of the first annular adjusting member 13 away from the fixing member 11; the first annular elastic member 15 is disposed in the first groove 131; a second groove 141 is configured on the end surface of the second annular adjusting member 14 away from the fixing member 11; the second annular elastic member 16 is disposed in the second groove 141. Further, the first annular adjusting element 13 includes a first straight portion 132 and a first bent portion 133 formed by bending an end of the first straight portion 132 away from the fixing element 11, and the first annular elastic element 15 is located on the first bent portion 133. The second annular adjusting element 14 includes a second straight portion 142 and a second bending portion 143 formed by bending an end of the second straight portion 142 away from the fixing element 11, and the second annular elastic element 16 is located on the second bending portion 143. By adopting the sealing device of the other preferred embodiment, the areas of the first annular elastic member and the second annular elastic member can be increased, and the contact area between the first annular elastic member and the light source outlet end and between the second annular elastic member and the light pipe inlet end can be simultaneously increased, so that the compression effect is better, and the sealing effect of the light path sealing device is further improved.
As shown in fig. 1-2, in actual practice, the first annular adjusting member 13 is first inserted into the through hole 12 of the fixing member 11, the second annular adjusting member 14 is then sleeved on the outer side wall of the other end of the fixing member 11, the first annular elastic member 15 is then fixed in the first groove 131 of the first annular adjusting member 13, the second annular elastic member 16 is then fixed in the second groove 141 of the second annular adjusting member 14, the first annular elastic member 15 is then used to press the end face of the outlet end 21 of the light source 20, and the second annular elastic member 16 is then used to press the end face of the inlet end 31 of the light pipe 30. By adopting the sealing device, dust deposition on the light source outlet lens and the light bar in the light pipe can be effectively avoided, the light transmittance of the light source outlet lens is improved, the projection brightness of film projection is increased, damage to relevant parts due to excessive local heat is avoided, and the service life of the relevant parts is prolonged. Meanwhile, the sealing device can effectively improve the flexibility of fine adjustment operation, increase the adjustment range and avoid light reflection interference.
According to another aspect of the present invention, there is provided another preferred embodiment, which provides an optical path system, as shown in fig. 3, the optical path system includes: light source 20: light pipe 30 connected to light source outlet port 21: a light treatment engine 40 connected to the outlet end 31 of the light pipe; a lens 50 connected to the exit end of the light processing engine 40; and the optical path sealing device 10 as described above; the light path sealing device 10 is configured to be used for sealing and connecting the outlet end 21 of the light source 20 and the inlet end 31 of the light pipe 30. Wherein, the first annular elastic member 15 of the light path sealing device 10 is connected with the outlet end 21 of the light source 20 in a sealing manner; the second annular elastic member 16 of the light path sealing device is connected with the inlet end 31 of the light pipe 30 in a sealing manner.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (9)
1. A light path sealing device for a digital projector is characterized in that,
the light path sealing device comprises a fixing piece with a through hole;
the optical path sealing device also comprises a first annular adjusting piece, a second annular adjusting piece, a first annular elastic piece and a second annular elastic piece;
one end of the first annular adjusting piece is inserted into the through hole from one end of the fixing piece;
one end of the second annular adjusting piece is sleeved on the outer side wall of the other end of the fixing piece;
the first annular elastic piece is positioned at the other end of the first annular adjusting piece and protrudes out of the end surface of the first annular adjusting piece;
the second annular elastic piece is positioned at the other end of the second annular adjusting piece and protrudes out of the end surface of the second annular adjusting piece;
the inner side walls of the fixing piece, the first annular adjusting piece and the second annular adjusting piece are covered with extinction coatings.
2. The optical path sealing device according to claim 1,
a first groove is arranged on the end face, away from the fixing piece, of the first annular adjusting piece; the first annular elastic piece is arranged in the first groove;
a second groove is arranged on the end face, far away from the fixing piece, of the second annular adjusting piece; the second annular elastic member is disposed in the second groove.
3. The optical circuit sealing device of claim 1, further comprising a bottom plate surrounding and fixing the outer sidewall of the fixing member.
4. The optical path sealing device according to claim 1,
fine thread structures matched with each other are arranged between the surface of the outer side wall of the first annular adjusting piece and the corresponding inner side wall of the through hole;
and fine thread structures matched with each other are arranged between the surface of the inner side wall of the second annular adjusting part and the corresponding outer side wall of the through hole.
5. The optical path sealing device according to claim 1,
the first annular adjusting piece comprises a first straight part and a first bending part formed by bending one end of the first straight part far away from the fixing piece outwards,
the first annular elastic part is located on the first bending part.
6. The optical path sealing device according to claim 1,
the second annular adjusting piece comprises a second straight part and a second bending part formed by bending one end of the second straight part far away from the fixing piece inwards,
the second annular elastic part is located on the second bending part.
7. The optical path sealing device according to claim 1, wherein the material of the matte coating layer is a matte ink containing iron oxide black.
8. An optical path system, characterized in that the optical path system comprises:
light source:
light pipe connected to the exit end of the light source:
a light processing engine connected to the outlet end of the light pipe;
a lens connected to an exit end of the light processing engine; and
the optical path sealing device as claimed in claims 1 to 7;
the light path sealing device is configured to be used for sealing and connecting the outlet end of the light source and the inlet end of the light pipe.
9. The optical path system according to claim 8,
the first annular elastic piece of the light path sealing device is connected with the outlet end of the light source in a sealing way;
and the second annular elastic part of the light path sealing device is connected with the inlet end of the light pipe in a sealing way.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040312.XU CN210222464U (en) | 2019-07-05 | 2019-07-05 | Light path sealing device for digital projector and light path system thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921040312.XU CN210222464U (en) | 2019-07-05 | 2019-07-05 | Light path sealing device for digital projector and light path system thereof |
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| CN210222464U true CN210222464U (en) | 2020-03-31 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398873A (en) * | 2019-07-05 | 2019-11-01 | 中影巴可（北京）电子有限公司 | A kind of optical path sealing device and its light path system for digital projector |
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2019
- 2019-07-05 CN CN201921040312.XU patent/CN210222464U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110398873A (en) * | 2019-07-05 | 2019-11-01 | 中影巴可（北京）电子有限公司 | A kind of optical path sealing device and its light path system for digital projector |
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