CN2741070Y - Easily focusing and positioning projecting light - Google Patents
Easily focusing and positioning projecting light Download PDFInfo
- Publication number
- CN2741070Y CN2741070Y CN 200420112633 CN200420112633U CN2741070Y CN 2741070 Y CN2741070 Y CN 2741070Y CN 200420112633 CN200420112633 CN 200420112633 CN 200420112633 U CN200420112633 U CN 200420112633U CN 2741070 Y CN2741070 Y CN 2741070Y
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- China
- Prior art keywords
- bulb
- catoptron
- metal
- projection lamp
- sleeve
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- Expired - Lifetime
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Abstract
The utility model discloses an easily focusing and positioning projection lamp, comprising a bracket, a bulb and a reflecting mirror matched with the bulb. The polaxis of the bulb is vertical to the light axis of the reflecting mirror and arranged in match with the reflecting mirror correspondingly and fixed correspondingly to the reflecting mirror through a positioning device, and the reflecting mirror is an ellipsoidal reflecting mirror or a paraboloid reflecting mirror or a combined reflecting mirror. Bulbs can be replaced conveniently and quickly via the projection lamp, accurate positioning and focusing of bulbs in the direction of the light axis of the reflecting mirror are ensured, the quality of light ray emitting from the projection lamp is ensured, and the maintenance and replacement costs of the projection lamp is decreased.
Description
Technical field
The utility model relates to the projection lamp that optical projection system is used, and is a kind of projection lamp that is convenient for changing bulb and focusing location specifically.
Background technology
Lighting device in the optical projection system of various ways such as slide projector, projector, projection TV, film projector and real object exhibition booth is that projection lamp is made up of two parts usually: the light that bulb and catoptron, bulb send is launched by predetermined direction after mirror reflects.
Usually, the projection lamp bulb can be divided into two kinds of single-ended and both-ends, the main dual-end bulb that adopts in the existing optical projection system.So-called dual-end bulb refers to the two ends that foam occupy middle part, foam and draws long electrode; And two electrodes are wrapped up by glass column respectively.
The bulb of existing projection lamp is installed fit system as shown in Figure 1 with respect to catoptron, bulb 1 vertically inserts in the uropore 21 of catoptron 2 bottoms, and be bonded as one by resistant to elevated temperatures bonding agent and catoptron and constitute lighting device and provide light source for optical projection system, the bulb of projection lamp is the mode of directly adorning with respect to catoptron, be the electrode of bulb and the light shaft coaxle of projection lamp, and foam is on optical axis.For catoptron is fixed in the optical projection system, also need a special support, this support supports catoptron and is fixed up, and it is fixed in the optical projection system by predetermined direction.
There is following shortcoming in such projection lamp:
Be difficult to carry out the focusing location of bulb when (1) more changing the bulb, cause user's maintenance cost to increase with respect to catoptron.Because present technologic reason, bulb is bigger in its axial error.And bulb and catoptron are coaxial when bulb is directly adorned in the present projection lamp, the foam of bulb requires to be positioned near the focal position of catoptron usually, and bulb can make its foam depart from the set position of catoptron on optical axis direction when it produces bigger error on axially, when catoptron is ellipsoidal mirror or a paraboloidal mirror in the curved reflector, the quality of output light to bulb on optical axis direction the position depart from very responsive, the quality of bulb focusing location directly influences drop shadow effect, comprises uniformity coefficient and brightness.So, for bulb foam that guarantee to change on the mirror optical axis direction position accurately, the location of must focusing accurately, the work of focusing location must be special technician and equipment just can finish, and waste time very much, this point often has only producer just can accomplish, so general maintenance agency all can only adopt the mode of catoptron and bulb (have even chord frame together) integral replacing, this has just increased maintenance cost greatly, has increased client's burden.
(2) in case bulb damages, just be difficult to change.Because will more change the bulb, just must at first from optical projection system, take out whole projection lamp and support, unload lower carriage then, bonding agent is got rid of, unloaded old bulb, then new bulb is inserted in the uropore of catoptron again, through the focusing location, coat bonding agent once more, wait bonding agent condense firm after, can ressemble support and insert optical projection system.As seen it is very bothersome time-consuming more to change the bulb.
The utility model content
The purpose of this utility model is the problem of the difficult focusing location that the straight assembling mode of closing at the bulb of existing projection lamp and catoptron exists, the projection lamp of a kind of easy focusing location is provided, this projection lamp can guarantee convenience, the accurate focusing location of bulb on the mirror optical axis direction when more changing the bulb, and carries out the replacing of bulb with convenient by user or maintenance agency.
The projection lamp of the easy focusing location that the utility model provides adopts following technical scheme: the projection lamp of the location of easily focusing, comprise support, bulb and the catoptron that cooperates with bulb, it is characterized in that: described bulb pole axis cooperates installation perpendicular to the optical axis of catoptron with respect to catoptron, and fix with respect to catoptron by locating device, described catoptron is ellipsoidal mirror or parabolic mirror or combined type catoptron.
The two ends of described bulb can be positioned on the catoptron by described locating device, and preferable mode bulb side passes through the locating device installing and locating on described support.
Described locating device can adopt following structure: locating device is made up of with the connector that is installed in the bulb side in the mount pad two mount pads that can be fixed on the support.
Described combined type catoptron is meant the catoptron of sphere and ellipsoid combination or the catoptron of sphere and parabolic combination.
The projection lamp of the utility model provides this easy focusing location has following beneficial effect with respect to bulb adopts the prior art of straight dress mode:
(1) owing to adopts the bulb pole axis to cooperate installation with respect to catoptron perpendicular to the optical axis mode of catoptron, bulb only influences the position of bulb on the mirror optical axis vertical direction in the mismachining tolerance on its pole axis, and can not influence the position on the more sensitive mirror optical axis direction of output light mass ratio of projection lamp, therefore the mismachining tolerance of the projection lamp bulb of this mounting means does not have influence substantially to the output light quality of projection lamp, so need not the professional when more changing the bulb and adopt the specialized equipment location of focusing, can carry out the replacing of bulb by maintenance agency even user, only need more change the bulb during replacing and get final product, not only make things convenient for the user, and reduced user's maintenance cost.
(2) bulb adopts the locating device of being made up of mount pad and installation head to be contained on the projection lamp, need be not bonding with bonding agent, so installing/dismounting is very convenient, quick.
Description of drawings
Fig. 1 is the bulb of projection lamp in the prior art and the mutual mounting structure synoptic diagram of catoptron;
Fig. 2 is that the bulb of projection lamp of easy focusing of the present utility model location and the installation of catoptron concern synoptic diagram;
Fig. 3 is the connector structural representation of an end of the projection lamp bulb of easy focusing of the present utility model location;
Fig. 4 is the connector structural representation of the other end of the projection lamp bulb of easy focusing of the present utility model location;
Fig. 5 is the mount pad structural representation corresponding with connector shown in Figure 3 in the projection lamp of easy focusing of the present utility model location;
Fig. 6 is the mount pad structural representation corresponding with plug shown in Figure 4 in the projection lamp of easy focusing of the present utility model location;
Fig. 7 is the assembling synoptic diagram of the projection lamp of easy focusing of the present utility model location.
Embodiment
Be described further below in conjunction with accompanying drawing and preferred embodiment projection lamp, to help understanding content of the present utility model easy focusing of the present utility model location.
As shown in Figure 2, the easy projection lamp that more changes the bulb, comprise support (figure part omitted), bulb 1 and the catoptron 2 that cooperates with bulb, the pole axis of bulb 1 laterally cooperates installation perpendicular to the optical axis of catoptron 2 with respect to catoptron 2, two holes 22 are arranged to pass bulb 1 on the catoptron 2, catoptron 2 is ellipsoidal mirror or parabolic mirror or combined type catoptron.Because bulb 1 adopts horizontal dress mode, its the position on the optical axis by the locating device of bulb and catoptron 2 on the determining positions in two holes 22, this position is designed when projection lamp dispatches from the factory and is fixed, so can guarantee when more changing the bulb that the installation site of bulb on the optical axis direction of catoptron 2 of projection lamp is constant, guarantee that bulb is installed near the both allocations of focus of catoptron, the error of projection lamp on the pole axis direction that this horizontal mounting means causes because of processing technology also only influences projection lamp perpendicular to the position on the optical axis, and for ellipsoidal mirror or parabolic mirror, projection lamp bulb 1 is very little to the quality influence of the light of output perpendicular to the deviation on the optical axis direction of catoptron 2.So, adopt the feasible Shi Buhui that more changes the bulb of this mode to influence the quality of output light because of the projection lamp manufacturing tolerance, can change by user or maintenance agency, and do not need professional and the equipment location of focusing accurately, do not need company's catoptron 2 even support to change together yet, so not only made things convenient for the operation that more changes the bulb, reduced required time, and reduced replacing, maintenance cost.
As seen from Figure 2, projection lamp need be opened two holes 22 of symmetry on catoptron 2, but does not need the uropore 21 among Fig. 1.Relative fixed between catoptron 2 and the bulb 1 is to finish by support.Catoptron 2 and bulb 1 can be separately fixed on the support, even if make catoptron 2 and the support of not removing stage makeup and costume, extract or insert two holes 22 that bulb 1 also can be opened from the catoptron wall separately, change very convenient.If on the catoptron wall, only open a hole, will make bulb single-endedly to fix, the stability and the symmetry of reliability and light all can reduce, and two end electrodes to connect electricity also very difficult.
Because bulb 1 generally is installed near the focus of catoptron 2, and is shorter when focus, that is to say when more pressing close to the catoptron bottom, should adopt method as symmetrical perforate among Fig. 2; And it is longer to work as focus, and when length arrived near catoptron 2 edges, can consider to open at catoptron 2 edges the breach (not shown) of the symmetry of suitable size this moment, makes things convenient for bulb to pass through to get final product.When focus long again, long outside the edge of catoptron 2 (this situation is bigger to the waste of light), just without perforate.
Bulb 1 both can be fixed on the catoptron 2, for example can as straight dress mode in the prior art, be bonded at the two ends glass column of bulb 1 on the outside surface of catoptron with bonding agent, also can be provided with the socket that is used to install two electrodes by catoptron, but it is rack-mount during even more ideal mode by locating device, so both can be fit to the short catoptron of focus and also can be suitable for the long for example long situation outside the catoptron edge of focus, and with respect on thin catoptron, be more prone to and be easy to connect lead at mounting and positioning device on the support.Locating device can adopt the receptacle electrical connector mode of existing daylight lamp.The utility model adopts as Fig. 3 to locating device shown in Figure 6, form by the connector structure of bulb side and rack-mount mount pad structure, as shown in Figure 3, the connector 3 of bulb one end is that the glass column 11 of an electrode tip of bulb is inserted in the metal sleeve 31, electrode 12 is inserted in the metal screw 32 of a hollow of metal sleeve 31 bottoms and passes from screw rod 32, passing part can weld with the end of screw rod 32, thereby makes screw rod 32 and electrode 12 keep conductings.The internal diameter of metal sleeve 31 is slightly larger than the external diameter of glass column 11 of bulb conveniently to penetrate, and the gap between glass column 11 and sleeve 31 is used bonding agent and inserted in addition, reinforces.4 of mount pads that cooperates with this end as shown in Figure 5, constitute by a tapped metal cylinder 41 of hollow and a sheet metal 42, cylinder 41 bottoms and sheet metal 42 welding, or sheet metal 42 is structure as a whole with metal cylinder 41, screw thread in the metal cylinder 41 cooperates with the external thread of the screw rod 32 of bulb electrode tip, screw rod 32 can be screwed in the cylinders 41 diameter fastening till, pilot hole 43 is arranged so that can be rack-mount on the sheet metal.
As shown in Figure 4, another electrode tip at bulb has connector 5, this connector 5 comprises a metal sleeve 51 equally, the bottom centre position of metal sleeve 51 has through hole, behind this through hole of electrode 12 ' pass with sleeve 51 welding, make sleeve 51 and electrode 12 ' conduction, sleeve 51 and glass column 11 ' between the gap in also should insert bonding agent and fixed.Electrode 12 ' should not pass with respect to sleeve 51 is oversize, is advisable just to expose head.6 of mount pads that cooperates with this end as shown in Figure 6, metal cylinder 61 and a sheet metal 62 by a hollow constitute, in metal cylinder 61 bottoms a flexible member is arranged, flexible member is a spring leaf 64 in the present embodiment, can also be that a spring or other have certain flexible conducting element, with with sleeve 51 Elastic Contact of electrode tip, its advantage is to adapt to the possible axial error of bulb, and situation such as in use expand with heat and contract with cold makes the subtle change of the length that bulb produces in the pole axis direction, and it is broken also to guarantee can not make when the other end is exerted pressure tension bulb 1 to be squeezed.Pilot hole 63 is arranged to fix with support by screw etc. on sheet metal 62.
Its installation method is as follows: earlier the mount pad 6 with an end utilizes its pilot hole 63 to be installed on the support (omitting among the figure) of projection lamp, a side opening 22 on the catoptron 2, and cylinder 61 perforate directions are in catoptron 2.Then the screw rod 32 of the other end of bulb is screwed in the tapped metal cylinder 41 of its mount pads 4, hand-held its mount pad 4 inserts bulb 1 from the perforate of catoptron 2 opposite sides, and it from being equipped with the perforate of mount pad 6, catoptron is passed, and its end just enters in the cylinder 61 of the mount pad 6 that is installed in this tapping, makes front end withstand spring leaf 64.Utilize the pilot hole 43 on the mount pad 4 that bulb 1 is fixed on the support then.The positioning instant of bulb is accused and is finished like this.The process of bulb dismounting is the inverse process of installation process.
Adopt above-mentioned bulb one end by the mode of the rack-mount other end of helicitic texture by spring leaf and metal cylinder location, can either guarantee that the firm installation of bulb can prevent the influence of expanding with heat and contract with cold in bulb mismachining tolerance and the use again by helicitic texture, can obtain good resultant effect, but it also is feasible under certain service condition that bulb side adopts the mode of identical mount pad or connector
This installation method is with low cost, and is simple and practical.The shape of mount pad bottom metal 42,62 can be illustrated rectangle in the present embodiment, can adjust according to the mated condition of mirror support in the practical application, can change ellipse, rhombus or other 3D shape into.The position of pilot hole 43,63 also can be adjusted as required.
Claims (9)
1, the projection lamp of a kind of easy focusing location, comprise support, bulb and the catoptron that cooperates with bulb, it is characterized in that: described bulb pole axis cooperates installation perpendicular to the optical axis of catoptron with respect to catoptron, and fix with respect to catoptron by locating device, described catoptron is ellipsoidal mirror or parabolic mirror or combined type catoptron.
2, the projection lamp of easy focusing as claimed in claim 1 location, it is characterized in that: the two ends of described bulb are positioned on the described support by described locating device.
3, the projection lamp of easy focusing as claimed in claim 2 location is characterized in that: described locating device is made up of the connector that can be fixed on two mount pads on the support and be installed in the bulb side in the mount pad.
4, the projection lamp of easy focusing as claimed in claim 3 location, it is characterized in that: the connector of described bulb side and mount pad are same connector and mount pad, connector comprises a metal sleeve, the glass column of the electrode tip of bulb is inserted in this sleeve, electrode is inserted in the metal screw of a hollow of metal sleeve bottom and passes from screw rod, passes the end welding of part and screw rod; Mount pad is made of a tapped metal cylinder of hollow and a sheet metal, and cylindrical base is connected with sheet metal, and the screw thread in the metal cylinder cooperates with the external thread of the screw rod of bulb electrode tip, has pilot hole rack-mount with screw on the sheet metal.
5, the projection lamp of easy focusing as claimed in claim 3 location, it is characterized in that: the connector of described bulb side and mount pad are same connector and mount pad, connector comprises a metal sleeve, the bottom centre position of metal sleeve has through hole, and electrode is connected with sleeve after passing this through hole; Mount pad is made of metal cylinder and a sheet metal of a hollow, and the sleeve Elastic Contact of a flexible member and above-mentioned connector is arranged in metal cylinder bottom, has pilot hole to fix with screw and support on sheet metal.
6, the projection lamp of easy focusing as claimed in claim 3 location, it is characterized in that: the connector of described bulb one end comprises a metal sleeve, the glass column of the electrode tip of bulb is inserted in this sleeve, electrode is inserted in the metal screw of a hollow of metal sleeve bottom and passes from screw rod, passing part welds with the end of screw rod, this end mount pad is made of a tapped metal cylinder of hollow and a sheet metal, cylindrical base is connected with sheet metal, screw thread in the metal cylinder cooperates with the external thread of the screw rod of bulb electrode tip, and through hole and rack-mount by this through hole is arranged on the sheet metal; The connector of the other end comprises a metal sleeve, the bottom centre position of metal sleeve has through hole, electrode is connected with sleeve after passing this through hole, the mount pad of this end is made of metal cylinder and a sheet metal of a hollow, the sleeve Elastic Contact of a flexible member and above-mentioned connector is arranged in metal cylinder bottom, have pilot hole to fix on the sheet metal with screw and support.
7, as the projection lamp of claim 5 or 6 described easy focusing location, it is characterized in that: described flexible member is spring leaf or spring.
8, the projection lamp of easy focusing as claimed in claim 1 or 2 location, it is characterized in that: have through hole on the described catoptron symmetrically, described bulb passes the through hole on the catoptron.
9, the projection lamp of easy focusing as claimed in claim 1 or 2 location, it is characterized in that: the foam of described bulb is sphere or elliposoidal, tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112633 CN2741070Y (en) | 2004-11-08 | 2004-11-08 | Easily focusing and positioning projecting light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420112633 CN2741070Y (en) | 2004-11-08 | 2004-11-08 | Easily focusing and positioning projecting light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2741070Y true CN2741070Y (en) | 2005-11-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420112633 Expired - Lifetime CN2741070Y (en) | 2004-11-08 | 2004-11-08 | Easily focusing and positioning projecting light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2741070Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016977B (en) * | 2006-02-09 | 2010-05-19 | 优志旺电机株式会社 | Light irradiation device and discharging lamp attached to the light irradiation device |
| CN104061539A (en) * | 2013-03-20 | 2014-09-24 | 黑拉许克联合股份有限公司 | Method For Fixing Optical Unit And Illumination Device |
-
2004
- 2004-11-08 CN CN 200420112633 patent/CN2741070Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101016977B (en) * | 2006-02-09 | 2010-05-19 | 优志旺电机株式会社 | Light irradiation device and discharging lamp attached to the light irradiation device |
| CN104061539A (en) * | 2013-03-20 | 2014-09-24 | 黑拉许克联合股份有限公司 | Method For Fixing Optical Unit And Illumination Device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141108 Granted publication date: 20051116 |