CN2207629Y - Film display tungsten halide exciting light source - Google Patents
Film display tungsten halide exciting light source Download PDFInfo
- Publication number
- CN2207629Y CN2207629Y CN 94227843 CN94227843U CN2207629Y CN 2207629 Y CN2207629 Y CN 2207629Y CN 94227843 CN94227843 CN 94227843 CN 94227843 U CN94227843 U CN 94227843U CN 2207629 Y CN2207629 Y CN 2207629Y
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- CN
- China
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- light source
- lamp
- tungsten
- exciting light
- utility
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- Expired - Fee Related
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- Vessels And Coating Films For Discharge Lamps (AREA)
Abstract
The utility model relates to a film display tungsten halide exciting light source, wherein, a tungsten filament has a linear-spiral shape. Matched with a lamp holder which is compatible with the original cinematograph, the tungsten filament is manufactured and enclosed via the corresponding process. The light source has the advantages of good linearity, long service life, high light efficiency, convenient installation and convenient operation. When used, the utility model can not generate the wire dropping phenomenon. The service life of the utility model is 7 to 10 times of the service life of the filament lamp exciting light source, and the light intensity is increased by 15% during the life period of the utility model; the light output sustaining rate is larger than 90%. The utility model is favorable to enhance the film display quality, and the utility model can be used and popularized in the film display trade.
Description
The utility model belongs to the electric light source technology field, is the exciting light source that a kind of motion picture projection is used.
The exciting light source that cinematographic projector is equipped with usually is an incandescent lamp.Because the weakness of incandescent lamp self, exciting light source is shorter useful life, is generally 60～70 hours, and light decay is bigger, and light efficiency is lower.In addition, owing to show a film and need linear light sorurce, incandescent lamp is during as exciting light source, and its linearity is relatively poor, has influenced the motion picture projection quality.
The purpose of this utility model is to design a kind of long service life, light efficiency height, motion picture projection exciting light source that the linearity is good.
The tungsten halide exciting light source operation principle is the process that relies on the halogen tungsten regeneration cycle.Reach at glass bulb under the condition of proper temperature, the tungsten that is evaporated from filament can react with halogen tungsten circulation agent in bubble wall zone, forms volatile halogen tungsten compound.When the halogen tungsten compound is diffused into red-hot filament, resolve into halogen and tungsten again, the tungsten that discharges is deposited on the filament, and the tungsten that is evaporated from filament is turned back on the filament again, and halogen continue again to be diffused into the lower bubble wall zone of temperature again with tungsten chemical combination.According to the specific (special) requirements of above-mentioned operation principle and motion picture projection exciting light source, the utility model adopts the tungsten halogen lamp that designs through improvement as the motion picture projection exciting light source.Lamp and lamp socket that it is made up of quartz glass lamp housing, tungsten filament, molybdenum foil, molybdenum rod constitute, in fill 1.5～2.0atm krypton gas and halogen tungsten circulation agent, make by common technology.Wherein, tungsten filament is that linear pattern is spiral-shaped, and length is 5～7mm, two molybdenum foil thickness are 0.025～0.03mm, and width is 2.5～3mm, and length is 6～8mm, two molybdenum rod diameters are 0.8～0.9mm, and the tungsten filament two ends are connected with two molybdenum foils respectively, and two molybdenum foils are connected with two molybdenum rods respectively.
In order to make this light source and former cinematographic projector compatibility, the lamp socket of light source can be designed to socket type, with the bayonet lamp cap base coupling on the former cinematographic projector, mid portion is a plastic material, there are two patchholes in the centre, for the molybdenum rod pin insertion of lamp, as shown in Figure 2.Also lamp socket designs can be become the barrel mast formula, with the light source anchor clamps of cinematographic projector coupling, structure as shown in Figure 3, material is bakelite or papery, core has the hole of inserting for the molybdenum rod pin on two.Wherein tube is suitable for reading a garden sheet porcelain head, coupling suitable for reading of its size and tube, general thickness 6～9mm, φ 16～18mm, the high 75～90mm of barrel mast, φ 26～30mm, central tube hole φ 5～7mm.
Photoelectric technology parameter of the present utility model generally requires as follows: electric current 5A, voltage 10V, power 50W, colour temperature 2700～2800K, light efficiency 18lm/w.This light source useful life, at life period, light output sustainment rate was greater than 90% greater than 500 hours.
The tungsten halide exciting light source of the utility model design is compared with common motion picture projection incandescent lamp exciting light source, and following advantage is arranged: 1. the light source linearity is good.Because tungsten filament is that linear pattern is spiral-shaped, does not produce a phenomenon of falling in the use, has guaranteed the linearity of light source; 2. long service life is original 7-10 times; 3. volume is little, economize on electricity.Volume ratio is original little by 1/3rd, economize on electricity about 20%; 4. light efficiency height, light intensity increases by 15%, life period, light output sustainment rate is greater than 90%; 5. with former cinematographic projector compatibility, easy to install.The exciting light source that the utility model provides helps improving the motion picture projection quality.
Further specify the utility model structure below in conjunction with drawings and Examples.
Fig. 1 is this halogen tungsten light-source structure schematic diagram
Fig. 2 is the bayonet base structure chart
Fig. 3 is barrel mast formula holder structure figure
Fig. 4 is the porcelain head shape figure in the barrel mast formula lamp socket.
Wherein 1 is the glass case, and 2 is filament, and 3 is molybdenum foil, and 4 is molybdenum rod, and 5 is bayonet base, and 6 is barrel mast formula lamp socket, and 7 is the patchhole on the lamp socket, and 8 is porcelain head.
Embodiment 1 50W motion picture projection tungsten halide exciting light source, case is common quartz crust, helical tungsten filament is long to be 7mm, molybdenum foil is of a size of 0.025 * 2.5 * 6(mm), and molybdenum rod is 0.8 * 15mm, makes by the technology of common tungsten halogen lamp, sealing-in, in fill 1.5atm krypton gas and halogen tungsten circulation agent, lamp socket adopts socket copper lamp socket, the size of two lamp insertion hole is mated with the molybdenum rod pin.
Embodiment 2 light sources and example 1 are together.Lamp socket adopts barrel mast formula structure, and material is a bakelite.The barrel mast height is 80mm, and external diameter is 28mm, and internal orifice dimension is 6mm, internal diameter 16.8mm suitable for reading, and degree of depth 8mm, there is the prominent ring of 30mm width the barrel mast middle part, and its external diameter is 31.5mm.The vitascope light source anchor clamps clamping of can powering of this position.The size of porcelain head is equivalent to the size suitable for reading of barrel mast, and promptly thickness is 8mm, and external diameter is 16.8mm, and there are 2 lamp base patchholes the centre.
Claims (3)
1, a kind of motion picture projection tungsten halide exciting light source, lamp and the lamp socket be made up of glass lamp housing, tungsten filament, molybdenum foil, molybdenum rod constitute, in fill 1.5～2.0atm krypton gas and halogen tungsten circulation agent, make by common technology, it is characterized in that the tungsten filament type that is in line is spiral-shaped, length is 5～7mm, molybdenum foil thickness is 0.025～0.03mm, width is 2.5～3mm, and length is 6～8mm, and the molybdenum rod diameter is 0.8～0.9mm.
2, motion picture projection tungsten halide exciting light source according to claim 1 is characterized in that lamp socket is and the bayonet base of cinematographic projector lamp base coupling, and there are two patchholes corresponding with the molybdenum rod pin of lamp the centre.
3, motion picture projection tungsten halide exciting light source according to claim 1 is characterized in that lamp socket is the barrel mast formula lamp socket with cinematographic projector light source anchor clamps couplings, and tube is suitable for reading a garden sheet porcelain head, the patchhole that has two molybdenum rod pins with lamp to mate in the middle of the porcelain head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227843 CN2207629Y (en) | 1994-03-10 | 1994-03-10 | Film display tungsten halide exciting light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94227843 CN2207629Y (en) | 1994-03-10 | 1994-03-10 | Film display tungsten halide exciting light source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207629Y true CN2207629Y (en) | 1995-09-13 |
Family
ID=33840507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94227843 Expired - Fee Related CN2207629Y (en) | 1994-03-10 | 1994-03-10 | Film display tungsten halide exciting light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207629Y (en) |
-
1994
- 1994-03-10 CN CN 94227843 patent/CN2207629Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |