CN2184198Y - Automatic timing tester-controller for light exposure - Google Patents
Automatic timing tester-controller for light exposure Download PDFInfo
- Publication number
- CN2184198Y CN2184198Y CN 93243890 CN93243890U CN2184198Y CN 2184198 Y CN2184198 Y CN 2184198Y CN 93243890 CN93243890 CN 93243890 CN 93243890 U CN93243890 U CN 93243890U CN 2184198 Y CN2184198 Y CN 2184198Y
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- Prior art keywords
- daylighting
- exposure
- probe
- photoresistance
- self
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Abstract
The utility model relates to an automatic timing tester-controller for light exposure. The utility model is composed of an electronic control box and lighting probes of various modes. The automatic timing tester-controller can matched with any normal printing exposure box, an enlarger and the imaging system of an observation instrument, and the developing and printing of the photograph, enlarging, photographic photometry and exposing processes can be completed once. Various photographic paper and rubber sheets can obtain optimum exposing timeunder the illumination intensity of the greater amplitude of variation. The utility model has the advantages of simple structure, easy assembly, convenient operation and low cost. The automatic timing tester-controller for light exposure can be used for the rebuilding of the photography technology of a normal camera chamber and laboratory automation, and can also be used for the automatic design of the new instrument photography system of a manufacturer.
Description
Affiliated technical field
The utility model can be supporting with common printing and sunning box, enlarger and instrument camera chain, the measure and control device of the realization self-timing exposure that belongs to developing and printing, amplifies and photograph.
Prior art is analyzed
Use the exposure timer on the market to print when putting black and white or chromophotograph, when using the timing shutter photography on some observation instrument, all depend on people's experience or test, must pull its timing stepping and select the time shutter, its effect only is to replace the people to carry out timing to stop exposing to the sun.Many employing B doors time exposure when photograph in the laboratory is even the effect that timing stops exposing to the sun has also lost.Therefore exist human factor to cause the excessive or not enough of exposure, can cause former exposure time change during particularly manual enlargement of color photos color correction, even there is the people of suitable experience also to be difficult to open exposure accurately, it is inevitable that the expense of taking a lot of work that causes is thus expected.
Have a kind of " print framework automatically " on the external color enlarger, form by actinometer measuring device, the time relay and electronic circuit, can reach the purpose of automatic exposure from amplifying observing and controlling exposure under the printing paper windowpane behind, its observing and controlling action principle sees the appended copy 1 of this instructions for details, repeats no more.But realizing that this automatic measuring and controlling amplifies will change the old-fashioned phase-plate of putting that the demestic user generally uses at present at least and just can accomplish; Projected light sees through successively and amplifies printing paper, ground glass when particularly exposing with this automatic print framework, repeatedly reflect in the light chamber below and mixed, be not to be received by photovalve all, wherein must some pass glass and project the printing paper back side mussily to superinverse, cause printing paper to suffer re-expose and burnt hair, influence the one-tenth phase quality of photo.
According to the update search of Gansu Province Patent Service Centre, domestic also have a patent relevant with us: 88204581.4 " single stage method photometry exposure self-actuated controllers " and 92211284.3 " small-sized enlargement of color photos machine expose automaton " totally two (seeing the appended copy 2 of instructions).These two utility models are all supporting with manual film processor, realization is to black and white, colored purpose of amplifying automatic light measuring, exposure, but photoresistance is installed between negative rack and the camera lens in small-sized film processor bellows experiences illuminance, certain shortcoming is arranged: when whole negative rack, bellows, enlarging lens lifting (during the coarse adjustment enlargement factor), though the illuminance of its photoresistance impression does not change, and variation has taken place with enlargement factor in the illuminance of enlarging paper impression below the film processor, printing paper under-exposure in the time of must causing multiple to become big, printing paper overexposure when multiple diminishes.
No matter be above any both at home and abroad, can only be used to amplify photograph with film processor is supporting, and be used to the self-timing exposure device of processing, photographing with common printing and sunning box, observation instrument coupling, and the self-timing measurement and control instrument of particularly be common to seal, put, taking the photograph, not seeing so far has novel listing.
Develop novel purpose
In order to overcome the prior art shortcoming, we have developed a kind of self-timing exposure controller (hereinafter to be referred as this machine), purpose is to use with common any printing and sunning box, enlarger and instrument camera chain coupling, respectively the exposure process of developing and printing, amplification and photography is realized automatic measuring and controlling, make all kinds of photosensitive materials under different illumination, all can obtain the exposure of Best Times.
This machine observing and controlling action principle
This machine is made of an electronic control box and several photoresistance photometry probe.
Figure of description 1,2 represents that respectively this machine is to the distinctive observing and controlling mode of printing and sunning box, enlarger and instrument camera chain.
In Fig. 1, stretch out transmission-type daylighting probe 1 by electronic control box 8, be fixed in the eye of sponge pressure phase-plate 2 on the printing and sunning box, contact paper 3 back sides, collection from exposure lamp 7 send, through the part transmitted light (center emphasis photometry) of the projection of frosted glass 6, light glass 5, egative film 4 and printing paper 3, control exposure lamp 7 extinguishes on time.
In Fig. 2, plug reflective daylighting probe 13 by electronic control box 8, be fixed on and amplify on the photo frame 15, the part of enlarging paper 14 surface projections that gather diffuses (base emphasis photometry), and the lighting time of enlarger lamp bulb 9 is controlled.The projected light of directive enlarging paper is the light that sends of enlarger lamp 9 through light-mixing machine 10, egative film 11 and the enlarging lens 12 of enlarger and comes.
The automatic measuring and controlling principle of Laboratory Instruments photography also can be illustrated by Fig. 2.If, regard the film for the treatment of sensitization to 14 as 12 phtographic lenses of regarding as in the instrument; Reflective daylighting probe 13 is fixed on the corner location of film loader in the instrument camera bellows, gathers from 14 and the part of image projected light on the film surface of coming diffuses; So, just can pass through 8 pairs of photoexposure time of this organic electronic control box automatic measuring and controlling.
In the electronic control box 8 of above-mentioned two figure, connect A and be self-timing system ［ 1 ］, connect M and be manual timing system ［ 2 ］ (promptly having kept the function of exposure timer in the market); These two kinds of systems are shared to be had safety lamp and meets electricity, exposure indication luminotron ［ 3 ］, second flicker timekeeping system ［ 4 ］ and output control (220V) system ［ 5 ］.
Member is formed and function
The electronic control box and the daylighting probe that constitute this machine have the unique design form.
(1) electronic control box
Figure of description 3,4,5 is main circuit figure of electronic control box.Its self-timing detection and control circuitry by time base integrated package NE555 and the variable resistor R5 that connects mutually, daylighting circuit that photoresistance R4 forms, by the time basic integrated package NE555 and relay J time control switch circuit and the 220V voltage-stabilized power supply circuit formed constituted.Its observing and controlling principle is as follows:
After in Fig. 3, pressing exposure button AN1, the differentiating circuit that signal pulse is formed through resistance R 2, capacitor C 1, trigger end 2 pin of base integrated package when triggering NE555 (Fig. 3 left side apart from shape), this moment, output terminal 3 pin can be converted into high level, and driving relay, to inhale the post-exposure lamp down bright; Simultaneously 7 pin are to by placing photoresistance R4 under the illumination to capacitor C 3 chargings.When 6 pin level rise to 2/3 supply voltage when following, to export 3 pin and be reversed to low level, relay opens, end exposure.The suffered illumination difference of photoresistance R4 has caused the asynchronism(-nization) that discharges and recharges of capacitor C 3, thereby has realized the observing and controlling process that the time shutter changes automatically with the suffered illumination difference of photosensitive material.
Fig. 4 is a power circuit, and Fig. 5 is provided with resistance the time of timer resistance R 3 among Fig. 3.
Figure of description 6,7th, the shaft side figure of electronic control box model machine shell pros and cons.In this two figure (with foregoing circuit figure contrast): 16-220V AC power connecting line; The 17-power switch; The 18-power connection shows (light emitting diode D7); 19-dodges demonstration (light emitting diode D4 constitutes a second flicker timer with the NE555 on the right among Fig. 3) second; Switch during 20-focusing/control (SW2); 21-automatic/hand switch (SW1); The manual regularly stepping knob (variable resistor R3) of 22-; 23-exposure button (AN1); The 24-exposure process shows (light emitting diode D1); 25-controls accessory power outlet (connecing the exposure lamp of printing and sunning box, enlarger or camera); The emergent button (AN2) that stops exposing to the sun of 26-; 27-safety lamp switch; 28-coiled safety lamp (bright during focusing, go out during exposure; Also can turn off need not); 29-daylighting probe insertion (photoresistance Interface R4, the daylighting that can plug multiple pattern is popped one's head in); The 30-stepping is transferred knot knob (variable resistor R5, according to the desired quota exposure of photosensitive material dissimilar, number number and stepping); The 31-window that dispels the heat; The 32-protective tube.
The photoresistance R4 of Fig. 3 is contained among transmission-type daylighting probe and the reflective daylighting probe in addition.
(2) transmission-type daylighting probe
Figure of description 8 is the transmission-type daylighting probe wiring layouts that are exclusively used in printing and sunning box, wherein an end of daylighting tube 37 is equipped with light collecting lens 39, the break-through sponge presses the sponge layer 40 of phase-plate 2 to cover mutually with the pressure that plank 38(can directly be contained in printing and sunning box itself, also can be made into the pressure phase-plate of different size specifications in addition), be tightened by nut 35.The center screw of nut 35 is combined with cored screw 34 can make lift adjustment, regulates the distance of photoresistance 36 and light collecting lens 39, and the approaching then time shutter shortens, away from then prolonging.(in order to thin, the blocked up excessively egative film of those density, its time shutter exceeds the adjustable extent person of total exposure amount in the machine).Lead 33 passes the open column hole of screw rod 34, one end welding photoresistance 36, and the other end is that plug can insert the input jack 29 on the control box.Coarse and the blacking processing of inwall (or being designed to sphere) surface requirements on top reduces surplus diffuse transmission light as far as possible and returns photographic paper on daylighting tube 37 and the nut 35.
(3) reflective daylighting probe
Front view Fig. 9, vertical view Figure 10 are one of the design forms of the reflective probe of coupling enlarger.In this two figure: slide plate 41 and 42 usefulness screws 45 by trapezoidal cross-section are combined into base, be fixed on the angle of amplifying photo frame 15, being directed downwards the inclination panel from three has photoresistance 44(to pass bonnet 46 with lead 47 to link to each other with control box jack 29) travel(l)ing rest 43, can on photo frame 15, do moving of nearly angle or angular distance far away, change photoresistance 44 and accept to be projected in diffusing on the enlarging paper 14 according to strong and weak.Figure 11～14th, two of the design form of coupling enlarger.Figure 11 is main view, and Figure 12 is a vertical view, Figure 13 be front view C to partial view, Figure 14 is the enlarged drawing of daylighting casket part.Wherein the support 48 of stitch bonds is fixed tightly in a certain position (mid point on limit mutually) of amplifying the photo frame dovetail groove to 49 with slide block 50 by spiral shell.In can the daylighting casket 51 of lift adjustment on support, dress studs with the panel plate 52 of three photoresistance 54, and transparency window 53 is stamped in its front, and the plug that lead 55 is drawn in perforate behind the casket can be connected with control box jack 29.Its lift adjustment effect is the same, can make the expanded range of time shutter.If daylighting casket 51 among the support 43 that studs with photoresistance among Fig. 9 or Figure 14 is combined on the instrument photography camera bellows inwall, promptly near the edge of sensitive film magazine, draw outside the camera bellows from the hole of border seal connecting lead, insert the input jack 29 on logical this machine control box, just realized automatic measuring and controlling easily photoexposure.
In sum, the principal character of this machine is:
In circuit, there is variable resistor R5 to be arranged on the electronic control box stepping adjusting knob 30 as all kinds of photosensitive material nominal exposure amounts; Photoresistance R4 is contained among the transmission-type daylighting probe 1 or reflective daylighting probe 13 that electronic control box input jack 29 plugs in addition, be placed in printing and sunning box with transmission-type daylighting probe 1 and press in the phase-plate 2, be placed on enlarger photo frame 15 or the instrument photography camera bellows inwall with reflective daylighting probe 13.Therefore can use with any common printing and sunning box, enlarger and instrument camera chain coupling, make all kinds of photosensitive materials under the condition that illumination changes by a relatively large margin, all can obtain the exposure of Best Times.
The model machine trial effect
Our trial edition machine respectively with common enlarger, the camera chain coupling of printing and sunning box and metaloscope has been carried out the observation of automatic measuring and controlling phototiming effect.
Try to expose to the sun or illumination photometry by the desired total exposure amount of different black and white photographic papers, after at first fixed shelves are regulated, no matter how the illumination that this printing paper surface obtains changes, promptly change total wattage, the aperture when amplifying, enlargement factor of photo, the exposure lamp of different densities etc., it is splendid that the black-and-white photograph that seal is put on printing and sunning box or enlarger is opened Zhang Zhiliang, and its time shutter and experienced operator's estimation coincide.
On microscope, produce various metallographic microstructures with black and white film, adopt different aperture diaphragms, color filter, the time of automatic measuring and controlling exposure coincide with people's experience, and obtained fabulous negative density level and phase tablet quality, carry out automatic exposure with the light source of this machine control instrument and succeed.
Join the self-timing exposure that enlarger carries out manual enlargement of color photos with this machine, also obtained splendid color phase.Particularly with adding, during the subtraction color correction, not needing to consider to revise because of the necessary time of illumination change again, the chien shih photo obtained optimum density when this chance was regulated automatically.And the exposure lamp no longer needs voltage stabilizer to avoid voltage fluctuation to cause the variation of illumination, colour temperature.
This machine not only has the practical value of high-quality, high-level efficiency production photograph, and simple structure, and device easily, easy to operate, cheap, can widely be applied to the transformation of common photo studio, laboratory automation camera technique, and the exposure The Automation Design of manufacturing firm's new instrument.Therefore these facility have more wide application and market outlook.
Claims (7)
- Exposure when 1, under different illumination conditions, sensitive photographic material being controlled, particularly a kind of self-timing exposure controller that can make various photographic paper of all kinds, enlarging paper and sensitive film under the illumination of big amplitude of variation, all can obtain optimum exposure, its self-timing detection and control circuitry by the time base integrated package NE555 and the mutual variable resistor R that connects 5, photoresistance R 4The daylighting circuit of forming, by the time base integrated package NE555 and relay J time control switch circuit and the 220V voltage-stabilized power supply circuit formed constituted, it is characterized in that variable resistor R is arranged in circuit 5Be arranged on the electronic control box stepping adjusting knob (30) as all kinds of photosensitive material nominal exposure amounts; Photoresistance R 4Other is contained among the transmission-type daylighting probe (1) or reflective daylighting probe (13) that can plug in electronic control box input jack (29), be placed on the printing and sunning box sponge with transmission-type daylighting probe (1) and press in the phase-plate (2), be placed on enlarger photo frame (15) or the instrument photography camera bellows inwall with reflective daylighting probe (13).
- 2, self-timing exposure controller according to claim 1 is characterized in that transmission-type daylighting probe (1) is fixed among the through hole of sponge pressure phase-plate (2) on the printing and sunning box, carries out center emphasis photometry from the back side of photographic paper (3).
- 3, according to claim 1,2 described self-timing exposure controllers, it is characterized in that having in the transmission-type daylighting probe photoresistance (36) to be loaded on the small end of cored screw (34), can lifting in daylighting tube (37) by fastening nut (35).
- 4, self-timing exposure controller according to claim 1, it is characterized in that reflective daylighting probe (13) is placed in enlarger photo frame (15) limit, place, angle or instrument photography camera bellows near the inwall place at film case limit, angle, carries out base emphasis photometry from the medicine film surface of enlarging paper (14) or film.
- 5, self-timing exposure controller according to claim 1, the reflective daylighting probe that it is characterized in that one of design form has the photoresistance (44) of 3 parallel connections, be directed downwards to tilt to be embedded on the travel(l)ing rest (43) from three, can on the base that two slide plates (41,42) are formed, do moving of nearly angle or angular distance far away to amplifying the photo frame interior angle.
- 6, self-timing exposure controller according to claim 1, two the reflective daylighting probe that it is characterized in that design form has the photoresistance (54) of 3 parallel connections, assembly is in daylighting casket (51), can lifting in support (48) vertical slot, also can be with support (48) translation in the dovetail groove that amplifies photo frame.
- 7, according to claim 1,4,5,6 described self-timing exposure controllers, it is characterized in that the travel(l)ing rest (43) of reflective daylighting probe or daylighting casket (51) and the photoresistance of inlaying thereof, can be fixed in addition on the inwall of instrument photography camera bellows near photoresists film magazine limit, angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243890 CN2184198Y (en) | 1993-11-04 | 1993-11-04 | Automatic timing tester-controller for light exposure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93243890 CN2184198Y (en) | 1993-11-04 | 1993-11-04 | Automatic timing tester-controller for light exposure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2184198Y true CN2184198Y (en) | 1994-11-30 |
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ID=33817236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93243890 Expired - Fee Related CN2184198Y (en) | 1993-11-04 | 1993-11-04 | Automatic timing tester-controller for light exposure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2184198Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437325C (en) * | 2004-07-08 | 2008-11-26 | 三星电子株式会社 | Still image photographing method and apparatus for performing the same |
| CN102540762A (en) * | 2012-01-06 | 2012-07-04 | 新乡医学院 | Digital ultraviolet exposure controller |
| CN104333361A (en) * | 2014-11-07 | 2015-02-04 | 成都龙腾中远信息技术有限公司 | Exposure lamp timer for photo development |
-
1993
- 1993-11-04 CN CN 93243890 patent/CN2184198Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437325C (en) * | 2004-07-08 | 2008-11-26 | 三星电子株式会社 | Still image photographing method and apparatus for performing the same |
| CN102540762A (en) * | 2012-01-06 | 2012-07-04 | 新乡医学院 | Digital ultraviolet exposure controller |
| CN104333361A (en) * | 2014-11-07 | 2015-02-04 | 成都龙腾中远信息技术有限公司 | Exposure lamp timer for photo development |
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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 |