CN1075215A - Be used for regulating the device of exposure sources luminance of mercury lamp - Google Patents
Be used for regulating the device of exposure sources luminance of mercury lamp Download PDFInfo
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- CN1075215A CN1075215A CN 93100449 CN93100449A CN1075215A CN 1075215 A CN1075215 A CN 1075215A CN 93100449 CN93100449 CN 93100449 CN 93100449 A CN93100449 A CN 93100449A CN 1075215 A CN1075215 A CN 1075215A
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- mercury vapor
- vapor lamp
- light intensity
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- luminance
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Abstract
The present invention is used for regulating the device of exposure sources luminance of mercury lamp, the regulator that wherein is used for changing the voltage that provides is placed between power supply that alternating current is provided and the transformer that high pressure is provided to mercury vapor lamp adjustablely, consisting of of device: analog-digital converter, with reference to the brightness settings part, comparer, motor-driven part and motor.No matter when mercury vapor lamp in this exposure sources always emits beam with a predetermined light intensity.
Description
The present invention relates to be used for regulating the device of exposure sources luminance of mercury lamp, be particularly related to a kind of device that is used for regulating the exposure sources luminance of mercury lamp, no matter when mercury vapor lamp always launches light with a predetermined light intensity ratio in this exposure sources, and the result makes an improvement and makes be formed uniformly black matrix" (black matrix) on the wainscot surface of chromoscope (Color Braun tube).
Usually, be coated in strip or point format on the wainscot surface of chromoscope, in the strip of said red, green and Lan Sanse or point-like, form the black matrix" that constitutes by the light absorption material being respectively applied for emission fluorescent material red, green and blue look.
To form above-mentioned red, green and blue look phosphor strip from the mode of light source by the pore radiant light of shadow mask (Shadow mask).
The structure of the common exposure sources of radius as shown in Figure 1 from light source, it consists of the lampshade (lamp house) 22 that contains as the mercury vapor lamp 21 of light source, grating 23, it is radiation-curable to panel at the removable so that light of said mercury vapor lamp 21 of left and right directions, its other end side by side from an end of area to its middle body.Compensating glass 24 is used to correct the refraction by the light of grating 23, and optical filtering (filter) 25 makes the center panel part consistent with the light intensity ratio between the periphery plate portion corresponding to the light that is radiated said panel 29.The exposure region of barrier ring (Shadowrig) 26 restriction panels, end holder (head) 27 support panels 29.Shadow mask 28 is housed on panel 29, and this shadow mask plays the bridging effect and has the color recognition function between panel 29 and light source.
In the common exposure sources that constitutes by said structure, corresponding from the light of mercury vapor lamp radiation and grating motion, be directed into the wainscot surface of chromoscope by compensating glass.
At this moment, owing on the wainscot surface, be formed uniformly the film (membrane) of black matrix", so when radiant light, this black matrix" only is formed on exposure region.
Mercury vapor lamp should keep a predetermined light intensity, in order to obtain it, has used a kind of device that is used to regulate luminance of mercury lamp, as a result, when luminance of mercury lamp reduces, the voltage that the is provided to mercury vapor lamp variation that can make progress adjustablely, opposite when luminance of mercury lamp uprises, voltage can change downwards on adjustable ground.
The common unit that is used for regulating luminance of mercury lamp that is constituting by the structure shown in Fig. 2, it has regulator (Slidax) 72 in constituting, this is a kind of adjustable type transformer, it is provided to such place with voltage adjustablely, power supply 71 and high-tension transformer 73 have been put in the there, the high strength transformer is provided to mercury vapor lamp 70 with high pressure, comes boosted voltage thus.
In other words, when energy when power supply 71 is provided to regulator 72, the voltage that the user changes regulator adjustablely offers high-tension transformer 73 with a suitable voltage thus, so that can be according to the generation of the high-tension transformer 73 high voltage appearances mercury vapor lamp 70 that throws light on.
Simultaneously, according to user's recognition result, when the brightness that identifies mercury vapor lamp 70 had changed, the user changed regulator 72 adjustablely and regulates thus from high-tension transformer 73 for the magnitude of voltage that comes, so that the brightness of mercury vapor lamp can be maintained on the predeterminated level.
Yet in common luminance of mercury lamp control method, the user must change the brightness that regulator 72 is regulated mercury vapor lamp 70 manually adjustablely when the brightness that is identified mercury vapor lamp 70 by bore hole should be compensated.
In other words, because people's that must be by error is arranged the brightness of feeling to adjust mercury vapor lamp, so light intensity is maintained on the estimated rate, the result can not be formed uniformly the black matrix" width damaged thus product quality and since manual setting caused the reduction on the operating efficiency.
Thereby, the present invention attempts to solve such traditional problem, target of the present invention provides the device that is used for adjusting the exposure sources luminance of mercury lamp, in exposure sources, make mercury vapor lamp no matter when always penetrate the light of light intensity on an estimated rate, make and on the wainscot surface of chromoscope, be formed uniformly black matrix" that the result is because the predetermined constant ratio of light intensity can make the quality of product be enhanced with operating efficiency so that can make an improvement.
According to target of the present invention, provide the device that is used for regulating the exposure sources luminance of mercury lamp, regulator is used for that voltage is provided to such place adjustablely and puts into there and the electric power supply of interchanges (AC) is provided and high pressure is offered the high-tension transformer of mercury vapor lamp in this device, the constituting of device:
Be used to detect the sensor of luminance of mercury lamp;
To convert the analog-digital converter (being called A/D converter from now on) of digital signal from the luminance detection signal that sensor provides to corresponding to the light intensity of mercury vapor lamp;
Set the reference brightness setting section of mercury vapor lamp optimal brightness according to user's operation;
Comparer 9, it will be compared with the best light intensity that is based upon with reference on degree of the illuminating setting section 8 corresponding to the light intensity of the signal of output from A/D converter 7, export their differences in the mode of compensating signal to drive part 3 thus;
The motor-driven part, the rotation of this part control step motor comes drive stepping motor corresponding to the compensating control signal of exporting thus from comparer; Also have
Come the motor of the adjustable voltage button of movement governor according to the drive signal of motor-driven part.
For a better understanding of the present invention, and how effective the present invention is shown be, explains by way of example and with reference to accompanying drawing now; In the accompanying drawings
Fig. 1 is the schematic cross sectional view of common exposure device;
Fig. 2 is the block scheme that is used for regulating the common unit of exposure sources luminance of mercury lamp; And
Fig. 3 is the block scheme that is used for regulating the device of exposure sources luminance of mercury lamp according to of the present invention.
After this, describe most preferred embodiment of the present invention with reference to the accompanying drawings in detail.
The present invention will be provided for regulating the device of the brightness of mercury vapor lamp 1 in the exposure sources, and as shown in Figure 3, power supply 2 is linked on the drive part 3, and the voltage that drive part 3 provides from power supply 2 by adjusting is adjusted the light intensity of mercury vapor lamp.
High-tension transformer 4 is placed between drive part 3 and the mercury vapor lamp 1, thereby the operating voltage that it is used for improving from drive part 3 outputs drives mercury vapor lamp.Be used for comparison, the control section 5 of identification and detection mercury vapor lamp is placed between drive unit 3 and the mercury vapor lamp 1.
The composition of control section 5 has: the sensor 6 that is used to detect mercury vapor lamp 1 light intensity; Be used for to convert the A/D converter of digital signal to from the luminance detection signal that sensor 6 provides; According to the best light intensity of user's operating and setting mercury vapor lamp 1 with reference to brightness settings device 8; And comparer 9, it will compare thus with the best light intensity of setting at reference light intensity setting section 8 corresponding to the light intensity of the signal of output from A/D converter 7 and export their differences with the form of compensating signal to drive part 3.
Constituting of drive part 3: motor-driven part 11, it with from the comparer 9 of control section 5 output the corresponding control step motor of compensating control signal 10(explain later on) rotation come drive stepping motor thus; The adjustable voltage button (not shown) of stepper motor 10 and motor-driven part 11 corresponding movement governors 12.
The present invention is not restricted to the device of stepper motor 10 as the adjustable voltage button of adjusted device 12, and any device with rotating function all can use.
Next step will describe the operation usefulness of this embodiment of the present invention in more detail.
Usually, one of most crucial steps is exactly to form uniform black matrix" width in the exposure process, and the light intensity that for this reason is used for the mercury vapor lamp of exposure sources should keep uniformity at any time.
Thereby the present invention has a feature, and when exposure sources carries out in the exposure process, the brightness of mercury vapor lamp 1 is adjusted automatically.
At first, when the exposure sources initial start of mercury vapor lamp, the adjustable voltage button (not shown) of user's adjusted device 12, regulator 12 is selectively exported alternating voltage adjustable between 110V and 240V and is set up a predetermined voltage at for example 150V thus, and set up the predetermined light intensity of part 8 what for example 170 luxs (Lx) set up control section 5 with reference to brightness thus, here regulator 12 offers high voltage transformer 4 with setting voltage, and the high pressure that is limited to 1100V on brought up to setting voltage by transformer 4.
When the high pressure that is come by high-tension transformer was lighted mercury vapor lamp 1, exposure sources carried out exposure process.
Simultaneously, when driving mercury vapor lamp, the sensor 6 that is installed in control section 5 detects the light intensity of mercury vapor lamp 1, is provided on the A/D converter 7 that links to each other with the outlet terminal of sensor 6 by the light intensity signal of sensing.
A/D converter 7 will convert digital signal to from the analog detection signal of sensor 6 input, after digital signal is outputed to comparer 9.
Then, comparer 9 compares and discerns and is built up in reference to reaching from the current light intensity of the mercury vapor lamp 1 of A/D converter input with reference to light intensity on the brightness settings part 8.
Result as identification, if the current light intensity of mercury vapor lamp and the value that is based upon with reference to brightness settings part 8 are identical, then the signal level from comparer 9 outputs will be zero, yet, if the current light intensity of mercury vapor lamp 1 less than or greater than being built up in reference to the value on the brightness settings device 8, then the difference of these two values will be provided is that compensating control signal arrives motor-driven part 11 to comparer 9.
Thus, motor-driven part 11 is come rotaty step motor corresponding to compensating control signal, along with the adjustable voltage button (not shown) of being linked the regulator 12 on the stepper motor rotation axis moving corresponding to stepper motor 10 rotations, from the voltage of regulator 12 output is adjustable, the voltage that the result can provide it to be compensated to high-tension transformer 4.
Then, compensate high pressure along with being provided to being set up by bucking voltage of primary coil from the next quilt of the secondary coil of high-tension transformer 4, the result provides that compensated and that be used to drive thus high pressure to mercury vapor lamp 1.Thereby mercury vapor lamp 1 is corresponding with the value that is based upon with reference on the brightness settings part 8.
In other words, mercury vapor lamp 1 keeps a constant luminance at any time.
Resemble and above-mentionedly see, detect the light intensity of mercury vapor lamp, so that comparer is to afford redress control signal of drive part with sensor.
In addition, motor comes controlled adjuster to compensate the brightness of mercury vapor lamp thus corresponding to compensating control signal, makes mercury vapor lamp can launch the brightness of constant intensity, and this constant brightness makes black matrix" be formed uniformly on the wainscot face of teletron.
Thereby because this constant light intensity, the quality of product can be enhanced and operating efficiency also can be improved.
Claims (1)
1, be used for regulating the device of exposure sources luminance of mercury lamp, the regulator that wherein is used for changing the voltage that provides is placed between power supply that alternating current is provided and the transformer that high pressure is provided to mercury vapor lamp adjustablely, the consisting of of device:
Analog-digital converter, it is used for will converting digital signal to from the luminance detection signal that sensor provides corresponding to the light intensity of mercury vapor lamp;
With reference to the brightness settings part, it is used for the best light intensity according to user's operating and setting mercury vapor lamp;
Comparer, thus it be used for corresponding to the light intensity of the signal of exporting from analog-digital converter be based upon best light intensity with reference to the brightness settings part and compare its difference is outputed to drive part with the form of compensating signal;
The motor-driven part, the rotation that it comes the control step motor corresponding to the compensating control signal from comparer output is drive stepping motor thus;
Motor, it comes the adjustable voltage button of movement governor according to the drive signal of motor-driven part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019920001655A KR930018619A (en) | 1992-02-01 | Illumination amount automatic control device of exposure stand mercury lamp | |
| KR1655/92 | 1992-02-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1075215A true CN1075215A (en) | 1993-08-11 |
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ID=19328644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93100449 Pending CN1075215A (en) | 1992-02-01 | 1993-02-01 | Be used for regulating the device of exposure sources luminance of mercury lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1075215A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988747B (en) * | 2005-12-20 | 2011-05-25 | 财团法人工业技术研究院 | Control system and its method for lighting brightness color |
-
1993
- 1993-02-01 CN CN 93100449 patent/CN1075215A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1988747B (en) * | 2005-12-20 | 2011-05-25 | 财团法人工业技术研究院 | Control system and its method for lighting brightness color |
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| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |