CN107908063A - Projection lens and projection display apparatus - Google Patents
Projection lens and projection display apparatus Download PDFInfo
- Publication number
- CN107908063A CN107908063A CN201711420672.8A CN201711420672A CN107908063A CN 107908063 A CN107908063 A CN 107908063A CN 201711420672 A CN201711420672 A CN 201711420672A CN 107908063 A CN107908063 A CN 107908063A
- Authority
- CN
- China
- Prior art keywords
- lens
- wall
- lens set
- projection
- interlude
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G03B21/145—Housing details, e.g. position adjustments thereof
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/105—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens with movable lens means specially adapted for focusing at close distances
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Eyeglasses (AREA)
Abstract
The invention discloses projection lens and projection display apparatus, including mirror head outer shell, the mirror head outer shell includes front end, interlude and adjusting section, hinge has been bolted on the side outer wall of the front end, and hinge is hinged with protective cover, light aid has been bolted in the bottom outer wall of the front end, the inner wall of the front end is equipped with aperture group, and position of the inner wall aperture group away from protective cover of front end is equipped with filter, the first fixed plate equidistantly distributed is welded with the outer wall of the front end, the interlude outer wall is welded with the second fixed plate equidistantly distributed by the side of front end.The present invention filters light, front end and interlude can be quickly separated, timely cleared up, the accumulation of the dust avoided has an impact drop shadow effect, the spacing of light filling eyeglass and the 3rd lens set can be adjusted, improves the regulating power of device, improves the drop shadow effect of camera lens.
Description
Technical field
The present invention relates to photographic equipment technical field, more particularly to projection lens and projection display apparatus.
Background technology
At present, with the improvement of living standards, requirement of the people to quality of life is also higher and higher, in life shooting with
Place in shooting as it can be seen that need to use phtographic lens and projection display apparatus, general F is the light transmittance of camera lens, and F is smaller, camera lens
Translucency is better, and f is the magnification ratio of camera lens, e.g., during f=1.4, that is, on the position that one fixes, picture can amplify
1.4 again.The aperture of camera lens represents that, generally from 1.6-2.0, to be easy to use, a camera lens sets more frequency modulated lights with numerical value
Circle, the numerical value of aperture is bigger, and for aperture with regard to smaller, luminous flux is also fewer, and the maximum ring of each camera lens is marked on mirror with numerical value
The front of head.Focal length is also to be represented with numerical value, usually from 50-210, is divided into short focus, standard and focal length, is also had ultrashort and super
Focal length.The smaller focal length of numerical value is shorter, and numerical value is bigger, and focal length is longer, and requirement of the projector to lens focus is just thrown generally in 50-
140, rear-projection is generally 35 or so, and focal length determines when making preliminary dimension projector and the distance of shadow curtain, focal length is shorter, projection
The distance of machine and shadow curtain is nearer, otherwise more remote.If to need selecting short-focus lens if short distance projects big picture
Projector, it is on the contrary then need select telephoto lens.General projector is all standard lens, and general projection lens and projection are aobvious
Show that the regulating power of equipment is not strong, and structure is not compact enough, it is inconvenient for use, therefore, there is an urgent need for a kind of Novel projection camera lens and
Projection display apparatus.
The content of the invention
The purpose of the present invention is to solve shortcoming existing in the prior art, and the projection lens and Projection Display proposed
Equipment.
To achieve these goals, present invention employs following technical solution：
Projection lens and projection display apparatus, including mirror head outer shell, the mirror head outer shell include front end, interlude and adjusting
Section, has been bolted hinge on the side outer wall of the front end, and hinge is hinged with protective cover, outside the bottom of the front end
Light aid is bolted on wall, the inner wall of the front end is equipped with aperture group, and the inner wall aperture group of front end is away from anti-
The position of protecting cover is equipped with filter, and the first fixed plate equidistantly distributed, the interlude are welded with the outer wall of the front end
Outer wall is welded with the second fixed plate equidistantly distributed by the side of front end, and the inner wall of the interlude is equipped with the first eyeglass
Group and the second lens set, first lens set is by a concavees lens and a convex lens group into second lens set is two
A convex lens group is into side of the interlude away from front end is welded with adjusting section, is provided with the side outer wall for adjusting section
Telescopic chute, and adjusting rod is plugged with telescopic chute, the inner wall for adjusting section, which is equipped with, compensates eyeglass and the 3rd lens set, and the
Three lens sets include convex lens and concavees lens positioned at side of the compensation eyeglass away from interlude, the 3rd lens set.
Preferably, optical sensor has been bolted in the top exterior walls of the front end, and optical sensor connects
There is controller, controller is connected by signal wire with light aid.
Preferably, the side of first fixed plate and the second fixed plate is provided with connecting hole, and the first fixed plate and
The quantity of two fixed plates is four.
Preferably, the centre position welding restraining position ring block of the telescopic chute, and one end of adjusting rod is welded with fixed block, Gu
The diameter for determining block is more than the internal diameter of spacing ring.
Preferably, the focal length of the 3rd lens set concavees lens is less than the focal length of the first lens set concavees lens, and the 3rd mirror
The focal length of piece group convex lens is more than the sum of the focal length of the first lens set convex lens, focal length of the second lens set convex lens and is more than first
The sum of focal length of lens set and the 3rd lens set convex lens.
Preferably, connection ring is welded with the adjusting side outer wall of the section away from interlude, and connection ring is away from adjusting
Cushion pad is bonded with the side outer wall of section.
Beneficial effects of the present invention are：
1st, light can be filtered by the setting of aperture group and filter, adjusts the distance between its, improve device
Drop shadow effect.
2nd, the dismounting that front end is facilitated by the setting of the first fixed plate, the second fixed plate and connecting hole separates, can
Enough timely to clear up, the accumulation of the dust avoided has an impact drop shadow effect.
3rd, Jiao of camera lens can quickly be adjusted by the first lens set, the setting of the second lens set and the 3rd lens set
Away from, it is easy to adjust, the spacing of light filling eyeglass and the 3rd lens set can be adjusted by the setting of adjusting rod and regulating tank, improves dress
The regulating power put, improves the drop shadow effect of camera lens.
Brief description of the drawings
Fig. 1 is the schematic cross-sectional view of projection lens proposed by the present invention and projection display apparatus；
Fig. 2 is the side structure schematic view of projection lens proposed by the present invention and projection display apparatus.
In figure：1 protective cover, 2 mirror head outer shells, 3 light aids, 4 aperture groups, 5 filters, 6 first fixed plates, 7 connecting holes, 8
Interlude, 9 first lens sets, 10 second lens sets, 11 adjust section, 12 adjusting rods, 13 compensation eyeglasses, 14 the 3rd lens sets, 15
Connection ring, 16 cushion pads.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.
With reference to Fig. 1-2, projection lens and projection display apparatus, including mirror head outer shell 2, mirror head outer shell 2 include front end, centre
Section 8 and section 11 is adjusted, be bolted hinge on the side outer wall of front end, and hinge is hinged with protective cover 1, the bottom of front end
Light aid 3 is bolted on portion's outer wall, the inner wall of front end is equipped with aperture group 4, and the inner wall aperture group 4 of front end is remote
The position of protective cover 1 is equipped with filter 5, is welded with the first fixed plate 6 equidistantly distributed on the outer wall of front end, outside interlude 8
Wall is welded with the second fixed plate equidistantly distributed by the side of front end, and the inner wall of interlude 8 is equipped with 9 He of the first lens set
Second lens set 10, the first lens set 9 is by a concavees lens and a convex lens group into the second lens set 10 is two convex lenses
Composition, side of the interlude 8 away from front end, which is welded with, adjusts section 11, adjusts and is provided with telescopic chute on the side outer wall of section 11, and stretches
Adjusting rod 12 is plugged with contracting groove, the inner wall for adjusting section 11 is equipped with compensation 13 and the 3rd lens set 14 of eyeglass, and the 3rd eyeglass
Group 14 includes convex lens and concavees lens positioned at side of the compensation eyeglass 13 away from interlude 8, the 3rd lens set 14.
In the present invention, optical sensor is bolted in the top exterior walls of front end, and optical sensor is connected with
Controller, controller are connected by signal wire with light aid 3, and the side of the first fixed plate 6 and the second fixed plate is provided with connection
Hole 7, and the quantity of the first fixed plate 6 and the second fixed plate is four, the centre position welding restraining position ring block of telescopic chute, and adjust
One end of pole 12 is welded with fixed block, and the diameter of fixed block is more than the internal diameter of spacing ring, Jiao of 14 concavees lens of the 3rd lens set
Focal length away from less than 9 concavees lens of the first lens set, and the focal length of 14 convex lens of the 3rd lens set is more than 9 convex lens of the first lens set
Focal length, the sum of the focal length of 10 convex lens of the second lens set is more than the focal length of the first lens set 9 and 14 convex lens of the 3rd lens set
The sum of, adjust and connection ring 15 is welded with side outer wall of the section 11 away from interlude 8, and the one of the remote adjusting section 11 of connection ring 15
Cushion pad 16 is bonded with the outer wall of side.
Operation principle：In use, being filtered by aperture group 4 and filter 5 to light, the distance between its is adjusted,
Front end and interlude 8 are dismantled by the first fixed plate 6, the second fixed plate and connecting hole by separation during dust accretions, the ash avoided
The accumulation of dirt has an impact drop shadow effect, by the position of adjusting rod 12 and regulating tank during projection, so as to adjust light filling eyeglass
13 and the 3rd lens set 14 spacing, adjust its focal length, reach optimal drop shadow effect.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art the invention discloses technical scope in, technique according to the invention scheme and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (6)
1. projection lens and projection display apparatus, including mirror head outer shell (2), it is characterised in that before the mirror head outer shell (2) includes
End, interlude (8) and adjusting section (11), have been bolted hinge on the side outer wall of the front end, and hinge is hinged with
Protective cover (1), has been bolted light aid (3) in the bottom outer wall of the front end, the inner wall of the front end is equipped with light
Circle group (4), and position of the inner wall aperture group (4) of front end away from protective cover (1) is equipped with filter (5), the outer wall of the front end
On be welded with the first fixed plate (6) equidistantly distributed, interlude (8) outer wall is welded with equidistant by the side of front end
Second fixed plate of distribution, the inner wall of the interlude (8) is equipped with the first lens set (9) and the second lens set (10), described
First lens set (9) by a concavees lens and a convex lens group into, second lens set (10) for two convex lens groups into,
Side of the interlude (8) away from front end, which is welded with, adjusts section (11), is provided with and stretches on the side outer wall for adjusting section (11)
Contracting groove, and adjusting rod (12) is plugged with telescopic chute, the inner wall for adjusting section (11) is equipped with compensation eyeglass (13) and the 3rd
Lens set (14), and the 3rd lens set (14) is positioned at side of the compensation eyeglass (13) away from interlude (8), the 3rd lens set
(14) convex lens and concavees lens are included.
2. projection lens according to claim 1 and projection display apparatus, it is characterised in that the top exterior walls of the front end
On be bolted optical sensor, and optical sensor is connected with controller, and controller passes through signal wire and light aid
(3) connect.
3. projection lens according to claim 1 and projection display apparatus, it is characterised in that first fixed plate (6)
Connecting hole (7) is provided with the side of the second fixed plate, and the quantity of the first fixed plate (6) and the second fixed plate is four.
4. projection lens according to claim 1 and projection display apparatus, it is characterised in that the interposition of the telescopic chute
Welding restraining position ring block is put, and one end of adjusting rod (12) is welded with fixed block, the diameter of fixed block is more than the internal diameter of spacing ring.
5. projection lens according to claim 1 and projection display apparatus, it is characterised in that the 3rd lens set (14)
The focal length of concavees lens is less than the focal length of the first lens set (9) concavees lens, and the focal length of the 3rd lens set (14) convex lens is more than the
The sum of the focal length of one lens set (9) convex lens, the focal length of the second lens set (10) convex lens is more than the first lens set (9) and the 3rd
The sum of focal length of lens set (14) convex lens.
6. projection lens according to claim 1 and projection display apparatus, it is characterised in that the adjusting section (11) is remote
Connection ring (15) is welded with the side outer wall of interlude (8), and connection ring (15) is away from the side outer wall for adjusting section (11)
It is bonded with cushion pad (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420672.8A CN107908063A (en) | 2017-12-25 | 2017-12-25 | Projection lens and projection display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711420672.8A CN107908063A (en) | 2017-12-25 | 2017-12-25 | Projection lens and projection display apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107908063A true CN107908063A (en) | 2018-04-13 |
Family
ID=61871199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711420672.8A Pending CN107908063A (en) | 2017-12-25 | 2017-12-25 | Projection lens and projection display apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107908063A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862356A (en) * | 2005-05-09 | 2006-11-15 | 中强光电股份有限公司 | Aperture and optical lens |
| CN102314056A (en) * | 2010-07-05 | 2012-01-11 | 鸿富锦精密工业（深圳）有限公司 | Projector capable of automatically adjusting projection brightness and method |
| CN203014973U (en) * | 2012-12-27 | 2013-06-19 | 航天信息股份有限公司 | Image acquisition device having light supplement function |
| CN103217770A (en) * | 2013-04-18 | 2013-07-24 | 苏州佳世达光电有限公司 | Lens fixing module and projector using same |
| US20140145948A1 (en) * | 2012-11-26 | 2014-05-29 | Everest Display Inc. | Interactive projection system and method for calibrating position of light point thereof |
| CN204721497U (en) * | 2015-06-26 | 2015-10-21 | 山东神戎电子股份有限公司 | A kind of CCTV camera taking into account monitoring and ambient lighting function |
| CN106405997A (en) * | 2016-10-18 | 2017-02-15 | 成都尚智恒达科技有限公司 | Projector with lens dustproof structure |
| CN106445255A (en) * | 2016-10-21 | 2017-02-22 | 北京仁光科技有限公司 | Light supplementing interaction device and system for rear projection |
| CN107121767A (en) * | 2017-06-27 | 2017-09-01 | 湖北久之洋信息科技有限公司 | High-resolution projection lens for DLP engineerings projector |
-
2017
- 2017-12-25 CN CN201711420672.8A patent/CN107908063A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1862356A (en) * | 2005-05-09 | 2006-11-15 | 中强光电股份有限公司 | Aperture and optical lens |
| CN102314056A (en) * | 2010-07-05 | 2012-01-11 | 鸿富锦精密工业（深圳）有限公司 | Projector capable of automatically adjusting projection brightness and method |
| US20140145948A1 (en) * | 2012-11-26 | 2014-05-29 | Everest Display Inc. | Interactive projection system and method for calibrating position of light point thereof |
| CN203014973U (en) * | 2012-12-27 | 2013-06-19 | 航天信息股份有限公司 | Image acquisition device having light supplement function |
| CN103217770A (en) * | 2013-04-18 | 2013-07-24 | 苏州佳世达光电有限公司 | Lens fixing module and projector using same |
| CN204721497U (en) * | 2015-06-26 | 2015-10-21 | 山东神戎电子股份有限公司 | A kind of CCTV camera taking into account monitoring and ambient lighting function |
| CN106405997A (en) * | 2016-10-18 | 2017-02-15 | 成都尚智恒达科技有限公司 | Projector with lens dustproof structure |
| CN106445255A (en) * | 2016-10-21 | 2017-02-22 | 北京仁光科技有限公司 | Light supplementing interaction device and system for rear projection |
| CN107121767A (en) * | 2017-06-27 | 2017-09-01 | 湖北久之洋信息科技有限公司 | High-resolution projection lens for DLP engineerings projector |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180413 |
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| RJ01 | Rejection of invention patent application after publication |