CN2667529Y - Light source for colour enlarging equipment - Google Patents
Light source for colour enlarging equipment Download PDFInfo
- Publication number
- CN2667529Y CN2667529Y CN 200320108075 CN200320108075U CN2667529Y CN 2667529 Y CN2667529 Y CN 2667529Y CN 200320108075 CN200320108075 CN 200320108075 CN 200320108075 U CN200320108075 U CN 200320108075U CN 2667529 Y CN2667529 Y CN 2667529Y
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- CN
- China
- Prior art keywords
- light source
- diffuse
- led
- enlargement
- reflective cavity
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- Expired - Fee Related
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The utility model discloses a lamp-house used for color film processing facilities and comprising a shell body. The inside of the shell body is provided in turn with an installation circuit wafer, a plurality of high brightness LEDs, a diffuse-reflective cavity and a diffuse-reflective board. The high brightness LEDs are arranged on the installation circuit wafer. The light produced by the high brightness LEDs obtain an even light source at the exit of the shell after going through the diffuse-reflective cavity and the diffuse-reflective board. The high brightness LEDs consist of at least red, green and blue LEDs which can be arrayed into a plurality of forms and arrangements and are controlled by color groups. The utility model which uses LEDs to replace the metal halid lamps to form the light source of a color film processing machine has the characteristics of small volume, a little heat productivity, stable power and so on. The utility model can replace the former light source, colordisc, shutter and other components in the color film processing machine and has simple structure and convenient operation.
Description
Technical field
The utility model relates to a kind of light supply apparatus, especially relates to a kind of light source that is used for enlargement of color photos equipment.
Background technology
In traditional enlargement of color photos machine, light source is important ingredient, and the optical illumination conventional film that light source sends is imaged onto on the printing paper again, finishes exposure.Light source commonly used at present is a metal halid lamp, in order to adapt to the requirement of printing paper exposure, its whole light source part generally comprises: parts such as metal halid lamp, reflective mirror, heat-protecting glass, coloured glass, light mixing cartridge, simultaneously, for film color is revised, often need with red, green, blue (or product, green grass or young crops, Huang) three-color filter and gearing thereof, realization monochromation illumination.Therefore, the total system volume is big, thermal value is big, mechanical part is many, can not carry out time shutter control, promptly needs shutter to control in addition.
Summary of the invention
The utility model provides a kind of light source that is used for enlargement of color photos equipment, can overcome the problem of above existence effectively, and volume is little, thermal value is few, power stability.
The technical solution of the utility model is: a kind of light source that is used for enlargement of color photos equipment, comprise housing, be followed successively by circuit board, high-brightness LED, diffuse-reflective cavity, diffuse reflector in the housing, high-brightness LED is installed on the circuit board, and the light that sends obtains uniform light source in the exit of housing behind diffuse-reflective cavity and diffuse reflector.
The exit of circuit board, high-brightness LED, diffuse-reflective cavity, diffuse reflector and housing is on same axis.
High-brightness LED is made up of the LED of red, green, blue three coloured light at least, and the monochromatic control of grouping.
The arrangement mode of high luminosity LED on circuit board can be a kind of in square, circular or irregularly shaped.High luminosity LED on the circuit board arrangement mode can between dislocation be arranged in individual layer, bilayer or three layers.
The xsect of described diffuse-reflective cavity can be any one in square, circular, the arbitrary polygon.
The utility model replaces the light source of the enlargement of color photos machine of metal halid lamp formation with LED, have characteristics such as volume is little, thermal value is few, power stability, the particularly independent control of monochromatic LED luminosity and fluorescent lifetime thereof can replace the effect of color filter and shutter in traditional enlargement of color photos machine.Therefore, the utility model can replace functions such as original light source, color filter, shutter in the enlargement of color photos machine, and is simple in structure, easy to operate.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model fundamental diagram;
Fig. 3 is a kind of arrangement mode of high-brightness LED on circuit board;
Fig. 4 is the vertical view of Fig. 3.
Embodiment
As shown in Figure 1, 2, a kind of light source that is used for enlargement of color photos equipment, comprise housing 1, coaxial successively mounting circuit boards 2, high-brightness LED 3, diffuse-reflective cavity 4, diffuse reflector 5 in the housing 1, red, green, blue three coloured light that send by high-brightness LED 3, behind diffuse-reflective cavity 4 and diffuse reflector 5, obtain uniform light source in the exit, by its illumination conventional film or digital image-forming element 6 (as LCD, LCOS etc.), image in the printing paper place by follow-up optical element again, finish whole exposure process.
High-brightness LED 3 directly is fixed on the circuit board, and has at least the LED of three kinds of colors of red, green, blue to form, and wherein the wavelength of red LED is at 600～700nm, and the wavelength of green LED is at 520～570nm, and the wavelength of blue led is between 450～490nm.The ratio of the number between them should be red more than green, and is green more than blueness, and versicolor LED should as far as possible evenly distribute, to improve the color uniformity of output light.
As shown in Figure 3, Figure 4, can as requirements such as luminance brightness, volumes, LED be lined up multiple shape,, also it can be arranged in individual layer, bilayer, three layers etc. as square, circle etc. according under the different situations.Bottom LED and the upper strata LED discharging of staggering, bottom LED sees through upper strata LED gap bright dipping, does not reduce luminous energy, so just can improve the luminous power of integral body.
The LED that is adopted can be the straight cutting encapsulation, also can be the little encapsulation of paster.
The xsect of described diffuse-reflective cavity 4 can be multiple shape, as square, circular, arbitrary polygon etc.
In the utility model,, carry out the grouping control mode to the LED of red, green, blue more than three kinds or three kinds, promptly can be bright respectively, go out or the light on and off of combination in any, it is bright, the time of going out can control.To the LED in one group of color, adopt string and mode to control, be about to a plurality of LED and be connected into one group, use parallel connection again between each group, thereby realize that a signal carries out a kind of control of color.
Because LED is carried out independent light on and off control, can obtain the light source of three kinds of colors of red, green, blue arbitrarily, be equivalent to insert in the light source effect of color filter, simultaneously, its fluorescent lifetime also can be controlled, and has been equivalent to realize the control action of shutter.
Claims (6)
1. light source that is used for enlargement of color photos equipment, comprise housing (1), it is characterized in that: mounting circuit boards (2), high-brightness LED (3), diffuse-reflective cavity (4), diffuse reflector (5) successively in the housing (1), high-brightness LED (3) is installed on the circuit board (2), and the light that sends obtains uniform light source in the exit of housing (1) behind diffuse-reflective cavity (4) and diffuse reflector (5).
2. a kind of light source that is used for enlargement of color photos equipment according to claim 1 is characterized in that: the exit of circuit board (2), high-brightness LED (3), diffuse-reflective cavity (4), diffuse reflector (5) and housing (1) is on same axis.
3. a kind of light source that is used for enlargement of color photos equipment according to claim 1 is characterized in that: high-brightness LED (3) is made up of the LED of red, green, blue three coloured light at least, and the monochromatic control of grouping.
4. a kind of light source that is used for enlargement of color photos equipment according to claim 1 is characterized in that: high luminosity LED (3) on circuit board (2) arrangement mode can be a kind of in square, circular or irregularly shaped.
5. a kind of light source that is used for enlargement of color photos equipment according to claim 1 is characterized in that: high luminosity LED (3) on the circuit board (2) arrangement mode can between dislocation be arranged in individual layer, bilayer or three layers.
6. a kind of light source that is used for enlargement of color photos equipment according to claim 1 is characterized in that: the xsect of described diffuse-reflective cavity (4) can be any one in square, circular, the arbitrary polygon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108075 CN2667529Y (en) | 2003-11-12 | 2003-11-12 | Light source for colour enlarging equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320108075 CN2667529Y (en) | 2003-11-12 | 2003-11-12 | Light source for colour enlarging equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2667529Y true CN2667529Y (en) | 2004-12-29 |
Family
ID=34342499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320108075 Expired - Fee Related CN2667529Y (en) | 2003-11-12 | 2003-11-12 | Light source for colour enlarging equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2667529Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187683A (en) * | 2011-12-28 | 2013-07-03 | 日亚化学工业株式会社 | Laser light source |
-
2003
- 2003-11-12 CN CN 200320108075 patent/CN2667529Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187683A (en) * | 2011-12-28 | 2013-07-03 | 日亚化学工业株式会社 | Laser light source |
| US9518725B2 (en) | 2011-12-28 | 2016-12-13 | Nichia Corporation | Light source apparatus |
| CN103187683B (en) * | 2011-12-28 | 2017-05-24 | 日亚化学工业株式会社 | Laser light source |
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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 |