CN2545645Y - Digital exposure electronic image-forming structure of color enlarger - Google Patents

Abstract

The utility model relates to a digital exposure electronic image-forming structure of a color enlarger. The utility model is characterized in that the utility model comprises a microprocessor, an electronic image-driving circuit and a silicon based crystallite chip, wherein the electronic image-driving circuit is composed of a synchronous dynamic memory, an electric programmable erasable logic device, a three-way digital-analogue converter and a current-voltage amplifier. Through a tailor-made polarized beam splitting prism, the three-color images of red, green and blue, which are created by the silicon based crystallite chip, are respectively projected on a piece of common argentic salt color paper to expose, which makes the three-color images become a synthesized digital color photo. The digisplay technique has the advantages of high resolution, high brightness, brilliant color, low cost price, etc.

Description

Enlargement of color photos machine digital exposure electronic imaging structure

The utility model relates to the imaging device of enlargement of color photos machine, relates in particular to enlargement of color photos machine digital exposure electronic imaging structure.

Colour film is the photosensitive material that scribbles the silver salt material on a kind of filmbase, makes light reaching the film by shooting, produces numerous pixel and forms piece image, disposablely thus obtains a transparent color negative film.Present enlargement of color photos machine is to see through colour negative by a kind of light source large tracts of land, be amplified in the photochrome that sensitization on the colour paper obtains colored erect image through camera lens, the automatic color correction function of enlargement of color photos machine is the automatic color correction that the color of correction large-area transmission light source reaches photochrome, can only fully reduce scenery and the overall color of taking, and the contrast of photo, camera exposure speed and aperture etc. are all multifactor, the exposure that forms determines colour film sensitization, take the colour negative of failure, be difficult to obtain satisfied photo the day after tomorrow, so quality of photochrome, largely be limited by photographer's camera work, if need to add explanatory note on the photochrome, then more need do complicated technology and handle, general enlargement of color photos shop is difficult to satisfy some special requirements.

Digital image is to scan by CCD, image is divided into millions of pixels to be recorded on the disk with digital form, on PC, can revise each pixel of digital picture, but color saturation, lightness, contrast, sharpness by the special software correction image, and can make personalized intention, as add comment, be with monthly calendar, greeting card, the business card of photo; Can make certificate photo, index print etc., because above plurality of advantages, the favor that digital image is extremely popular has the trend that replaces the conventional film image greatly.

The purpose of this utility model is a kind of enlargement of color photos machine digital exposure electronic imaging structure that provides in order to overcome determining of existing enlargement of color photos machine exposure technique, this device has been replaced the negative folder of enlargement of color photos machine, the fixed form same with negative film is fixed on the enlargement of color photos machine, make the enlargement of color photos facility have film to enlarge and print and the number two kinds of functions of enlarging and print, digital picture is behind the correction of PC, editor, show by the LCOS wafer, and project on the colour paper through the enlargement of color photos machine and to expose, obtain the digital color photo, make former enlargement of color photos equipment applicability stronger.

The purpose of this utility model is achieved in that enlargement of color photos machine digital exposure electronic imaging structure, is characterized in, comprises a micro computer PC, an electronic imaging driving circuit and a liquid crystal on silicon chip; Described electronic imaging driving circuit is made up of microprocessor, synchronous dynamic random access memory, program storage, the extensive gate array of electrically programmable logic, triple channel D/A, electric current one voltage transitions amplifier, the silicon base liquid crystal display chip of band data bus interface; Microprocessor is used to receive picture signal and the processing instruction that is transmitted by computer PC data bus interface, and changes into 8 bit parallel data and mail to storer, commands whole drive circuit works simultaneously; Program storage is the procedure stores chip of microprocessor; Synchronous dynamic random access memory is used for the image buffering of memory image; The extensive gate array of electrically programmable is used for data channel to be read and write the content of synchronous dynamic random access memory, is used to produce the required image digital signal of liquid crystal on silicon chip demonstration, is used to produce the liquid crystal on silicon chip simultaneously and shows required control signal; The triple channel D/A is used for image digital signal is changed into analog video signal; High speed electric current one voltage transitions amplifier is used for the current signal of simulation is changed into voltage signal; Silicon base liquid crystal display chip is used for display image.

Above-mentioned enlargement of color photos machine digital exposure electronic imaging structure, wherein, described microprocessor IC1 adopts the CYC64613-128 chip.

Above-mentioned enlargement of color photos machine digital exposure electronic imaging structure, wherein, described synchronous dynamic random access memory IC3 employing KM416S120D model,

Above-mentioned enlargement of color photos machine digital exposure electronic imaging structure, wherein, described electrically programmable can wipe logical device IC4 adopt the EPLD7128 model,

Above-mentioned enlargement of color photos machine digital exposure electronic imaging structure, wherein, described triple channel D/A IC5 employing ADV7123 model,

Above-mentioned enlargement of color photos machine digital exposure electronic imaging structure, wherein, described current-voltage amplifier IC6 adopts the AD8024 model to realize.

Because the utility model has adopted above technical scheme, the silicon-based microcrystal display technique (LCOS) that newly-developed is got up is used for the image display technology of digital color enlargement, and this digital display technique has the resolution height, the brightness height, characteristics such as colour is bright-coloured, and cost is low.Utilize this digital picture shows wafer, by special light source, can be divided into red, green, blue three coloured light, by special polarization splitting prism, red, green, the blue image three-colo(u)r that the LCOS wafer is produced projects on the common silver salt colour paper and exposes respectively, makes its synthetic number sign indicating number photochrome that obtains.Have the sharpness height, the qualification rate height, the low and purposes of cost is advantage more widely.

Concrete device measure of the present utility model is further provided by following embodiment and accompanying drawing.

Fig. 1 is an electrical block diagram of the present utility model.

Fig. 2 is an embodiment electrical schematic diagram of the present utility model.

See also Fig. 1, Fig. 2, the utility model enlargement of color photos machine digital exposure electronic imaging structure comprises a micro computer PC, an electronic imaging driving circuit and a liquid crystal on silicon chip; Described electronic imaging driving circuit is made up of microprocessor, synchronous dynamic random access memory, program storage, the extensive gate array of electrically programmable logic, triple channel D/A, electric current one voltage transitions amplifier, the silicon base liquid crystal display chip of band data bus interface; Microprocessor is used to receive picture signal and the processing instruction that is transmitted by computer PC data bus interface, and changes into 8 bit parallel data and mail to storer, commands whole drive circuit works simultaneously; Program storage is the procedure stores chip of microprocessor; Synchronous dynamic random access memory is used for the image buffering of memory image; The extensive gate array of electrically programmable is used for data channel to be read and write the content of synchronous dynamic random access memory, is used to produce the required image digital signal of liquid crystal on silicon chip demonstration, is used to produce the liquid crystal on silicon chip simultaneously and shows required control signal; The triple channel D/A is used for image digital signal is changed into analog video signal; High speed electric current one voltage transitions amplifier is used for the current signal of simulation is changed into voltage signal; Silicon base liquid crystal display chip is used for display image.

In an embodiment: microprocessor IC1 adopts CYC64613-128 chip, synchronous dynamic random access memory IC3 employing KM416S120D model, electrically programmable can wipe logical device IC4 employing EPLD7128 model, triple channel D/A IC5 adopts ADV7123 model, current-voltage amplifier IC6 employing AD8024 model to realize.

Its data flow is: the pictorial data in the PC is through USB serial ports input CYC64613-128 chip; The CYC64613-128 chip becomes eight bit parallel data to USB input transformation of data; Eight bit parallel pictorial data by data bus 1 deposit in SDRAM (A, B) in, deposit frame image data among the every SDRAM.(A B) controls (A, B) realization by EPLD with the interface of data bus 1,2 to SDRAM; EPLD (C) reads the pictorial data among the SDRAM by data bus 2, and changes VIDEO-A into, VIDEO-B, VIDEO-C, VIDEO-D vision signal.EPLD (D) constantly produces the required control signal of LCOS simultaneously, as VCOM, and VRING, COL-CLK etc.; Control signals such as COL-CLK are directly imported LCOS, and EPLD (C, D) six road signal VIDEO-A of Chan Shenging, VIDEO-B, VIDEO-D, VCOM, VRING import ADV7123, through analog to digital conversion become six the tunnel simulation current signals; The voltage signal of six road analog current signals in operational amplifier changes the required scope of LCOS into, input LCOS.

Because LCOS needs continual signal input, solidify to prevent liquid crystal, so used two SDRAM.Deposit frame image data among the every SDRAM.For example: when EPLD (C) reads certain frame image data from SDRAM (A), PC is by USB interface chip CYC64613-128, can in SDRAM (B), deposit the next frame pictorial data, when then LCOS need change the frame demonstration, EPLD (C) just can read the data among the SDRAM (B), i.e. next frame image at once.So just guaranteed continual pictorial data source,, also can save transmission institute time-consuming simultaneously so that the demand of LCOS to be provided.The control of switch frame is provided by USB interface chip CYC64613-128.

Because (A B) uses common data bus 1 during pictorial data, so when write certain sheet SDRAM pictorial data, for preventing that data with existing will block the pin of access data bus 1 to the interference of bus among another sheet SDRAM to write SDRAM.Method is that to put these pins be high-impedance state.In like manner, (A B) also uses common data bus 2, so that sheet SDRAM output data pin of not read will be put high-impedance state to read SDRAM.The control signal of putting the pin high-impedance state is also provided by USB interface chip CYC64613-128.

Carry 8051 in the CYC64613-128 chip, and 8051 required control programs are stored among the external EEPROM.Program produces control signal to CYC64613-128 among the EEPROM by carrying out, and whole system is turned round on request.RXD that is drawn by the CYC64613-128 chip among the figure and TXD mouth connect the serial port of outer PC, and USB+, USB-connect the USB interface of PC.Order that PC provides and image can be downloaded by RSR232 serial port and USB interface, handle finally display image on the LCOS chip by each chip in this schematic diagram then.

The annexation of each integrated circuit is described below in the utility model:

Addr end (105-108 pin, 114-118 pin, 120-122 pin, 127 pin, 128 pin, 1 pin, 2 pin) external eeprom address line of microprocessor circuit chip IC1; Datal holds (8-11 pin, 13-16 pin) external EEPROM data line; XIN holds (19 pin) external clock; Data2 end (79-86 pin) is the pictorial data line; RS232 end (110 pin, 111 pin) is the PC control line; USB+ end (66 pin) is the usb data connection; USB-end (65 pin) is the usb data connection; CONTROL1 end (95 pin) is given the EPM7128A control signal; CONTROL2 end (94 pin) is given the EPM7128B control signal; CONTROL3 end (64 pin) is given the EPM7128C control signal; CONTROL4 end (63 pin) is given the EPM71238C control signal; PSEN# end (33 pin) allows to read the EEPROM data; The clock signal that XIN end (19 pin) input is produced by EPM7128A.

Procedure stores 27512 is used for external EEPROM program storage; Addr:1-10 wherein, 23-25 pin address wire; Data:11-19 pin data line; The external chip selection signal of CE#:20 pin; OE#:22 pin output enable.

(A B) is used for memory image SDRAMData:2 to NT5DS16M8AT, 5,8,11,56,59,62,65 pin data lines; Addr:29-32,35-40,28,41 pin address wires; #CS:24 pin sheet selects CKE:44 pin clock gating; The input of CK:45 pin clock; The input of #CK:46 pin inversion clock; The reading and writing of #WE:21 pin allow; The input of BAO:26 pin block address; The input of BA1:27 pin block address; DQS:51 pin data strobe; DM*:47 pin input data mask; The #RAS:23 business concern operating a porters' service allows; #CAS:22 pin row allow;

EPM7128 (A; : as the EPLD:Datal:44-46 of data channel, the 48-52 pin is read the data in the USB microprocessor; Data2:33-37, the data among 39, the 41 pin read-write SDRAM; Data3:55-58,60,61,63,64 pin output datas; Addr:4,5,6,8-11,79,80,81,76,77 pin read-write SDRAM address; The CLK:83 pin is produced the signal input of clock by SG513P; The data line of this sheet of CONTROL1:30 pin USB microprocessor controls is in high resistant or carries out data transmission; Whether this frame of CONTROL5:68 pin notice EPM7128C distributes; : 15,17,21,22,24,25,27-29 foot control system SDRAMA; : the clock output that 18 pin provide for the USB microcontroller; : the clock output that 31 pin provide for EPM7128B; : the clock output that 54 pin provide for EPM7128D; : the clock output that 70 pin provide for EPM7128C;

EPM7128 (B; : as the EPLD of data channel; Data1:8-11,4,5,6,81 pin are read the data in the USB microprocessor; Data2:22,24,25, the data among the 27-31 pin read-write SDRAM; Data3:63-65,67-70,74 pin output datas; The clock signal input that the CLK:2 pin is produced by EPM7128A; The data line of this sheet of CONTROL2:15 pin USB microprocessor controls is in high resistant or carries out data transmission; Whether this frame of CONTROL6:77 pin notice EPM7128C distributes; : 16-18,54-58,50,51,52 foot control system SDRAMB;

EPM7128 (C; : the EPLD that is used to produce the required vision signal of LCOS; Data:22,24,25, the input of 27-31 pin picture intelligence data; VIDEO_A:4,5,75-77, the output of 79-81 pin VIDEO_A signal; VIDEO_B:57,58,60,61,63-65, the output of 67 pin VIDEO_B signals; VIDEO_C:44-46, the output of 48-52 pin VIDEO_B signal; VIDEO_D:33-37, the output of 39-41 pin VIDEO_B signal; The CONTROL5:17 pin learns from EPM7128A whether this frame distributes; The CONTROL6:18 pin learns from EPM7128A whether this frame distributes; The clock signal input that the CLK:2 pin is produced by EPM7128A;

EPM7128 (D; : the EPLD that is used to produce the required control signal of LCOS; VCOM:4,5,75-77,79-81 pin reference voltage; VRING:54-58,60,61,63 instep scape voltages; COL_CLK:45 pin column clock; The input of COL_DIN:46 pin column data; COL_DIR:51 pin column direction; ROW_CLK:50 business concern operating a porters' service clock; The ROW_EN:48 business concern operating a porters' service enables; The input of ROW_DIN:49 business concern operating a porters' service data; ROW_DIR:51 business concern operating a porters' service direction; The clock signal input that the CLK:2 pin is produced by EPM7128A;

ADV7123 (A; : D/A converter; The input of VIDEO_A:39-46 pin video A numeral; The input of VIDEO_B:1-8 pin video B numeral; The input of VIDEO_C:14-21 pin video C numeral; VIDEO_Aout:33.34 pin video A simulates output; VIDEO_Bout:31,32 pin video B simulate output; VIDEO_Cout:27,28 pin video C simulate output;

ADV7123 (B; : D/A converter; The input of VIDEO_D:39-46 pin video D numeral; VIDEO_Dout:33,34 pin video D simulate output; The input of VCOM:1-8 pin VCOM numeral; VCOMout:31,32 pin VCOM simulate output; The input of VRING:14-21 pin VRING numeral; VRINGout:27,28 pin VRING simulate output;

AD8024 (A; : operational amplifier; VIDEO_Ain:2,3 pin VIDEO_Aout:1 pin VIDEO_Bin:5,6 pin VIDEO_Bout:7 pin VIDEO_Cin:9,10 pin VIDEO_Cout:8 pin

ADV8024 (B; : operational amplifier; VIDEO_Din:12,13 pin VIDEO_Dout:14 pin VCOMin:2,3 pin VCOMout:1 pin VRINGin:5,6 pin VRINGout:7 pin

LCOS:VCOM:1,25 pin reference voltages; The analog picture signal input of VIDEO_B:6 pin dual pixel; The analog picture signal input of the strange pixel of VIDEO_A:7 pin; VRING:8 instep scape voltage; COL_CLK:9, the input of 10,23,24 pin column clocks; COL_DIN:11,12,21,22 pin column directions; ROW_DIR:14 business concern operating a porters' service direction; ROW_EN:15,16 business concern operating a porters' service enable; The input of ROW_DIN:17 business concern operating a porters' service data; ROW_CLK:18 business concern operating a porters' service clock; COL_DIR:20 pin column direction; The analog picture signal input of VIDEO_D:26 pin dual pixel; The analog picture signal input of the strange pixel of VIDEO_C:27 pin;

Claims (6)

1, enlargement of color photos machine digital exposure electronic imaging structure is characterized in that, comprises a micro computer PC, an electronic imaging driving circuit and a liquid crystal on silicon chip; Described electronic imaging driving circuit is made up of microprocessor, synchronous dynamic random access memory, program storage, the extensive gate array of electrically programmable logic, triple channel D/A, electric current one voltage transitions amplifier, the silicon base liquid crystal display chip of band data bus interface; Microprocessor is used to receive picture signal and the processing instruction that is transmitted by computer PC data bus interface, and changes into 8 bit parallel data and mail to storer, commands whole drive circuit works simultaneously; Program storage is the procedure stores chip of microprocessor; Synchronous dynamic random access memory is used for the image buffering of memory image; The extensive gate array of electrically programmable is used for data channel to be read and write the content of synchronous dynamic random access memory, is used to produce the required image digital signal of liquid crystal on silicon chip demonstration, is used to produce the liquid crystal on silicon chip simultaneously and shows required control signal; The triple channel D/A is used for image digital signal is changed into analog video signal; High speed electric current one voltage transitions amplifier is used for the current signal of simulation is changed into voltage signal; Silicon base liquid crystal display chip is used for display image.

2, enlargement of color photos machine digital exposure electronic imaging structure according to claim 1 is characterized in that, described microprocessor IC1 adopts the CYC64613-128 chip.

3, enlargement of color photos machine digital exposure electronic imaging structure according to claim 1 is characterized in that, described synchronous dynamic random access memory IC3 employing KM416S120D model,

4, enlargement of color photos machine digital exposure electronic imaging structure according to claim 1 is characterized in that, described electrically programmable can wipe logical device IC4 adopt the EPLD7128 model,

5, enlargement of color photos machine digital exposure electronic imaging structure according to claim 1 is characterized in that, described triple channel D/A IC5 employing ADV7123 model,

6, enlargement of color photos machine digital exposure electronic imaging structure according to claim 1 is characterized in that, described electric current one voltage amplifier IC6 adopts the AD8024 model to realize.

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