CN2169868Y

CN2169868Y - Colour calibration densimeter

Info

Publication number: CN2169868Y
Application number: CN 92239664
Authority: CN
Inventors: 周光荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-11-07
Filing date: 1992-11-07
Publication date: 1994-06-22
Anticipated expiration: 2002-11-07

Abstract

The utility model relates to a colour correcting device in which a common enlarger is used for colour enlargement. The device can also adjust the brightness of the light source. The utility model is characterized in that the colour filters or the grey density sheets arranged in different layers are driven by the button type connecting rod for adjustment, so the colour filters of any colour or the grey density sheets of any density can enter into or exit the optical path, and the colour of the light source and the brightness of the colour source are changed consequently. The utility model overcomes the defect that the operation of colour photo enlargement is complicated when a colour filter drawer is used for colour correction, solves the problems that the optimum aperture of the enlarging lens can not be fully utilized and the affection of the reciprocity failure factor to the correct exposure existing long before, and can be connected to install between the light rooms and the light collecting lens of the enlargers of various models.

Description

Colour calibration densimeter

The utility model belongs to common enlarger and is used for the color correction device that coloured silk is put, and adjustable light sources brightness.

Be used for the color correction device on the common enlarger that coloured silk puts at present, the general employing installed the color filter drawer additional or coloured silk is put the color composition head color correction.Install the method color correction of color filter drawer additional, select one or several color filters to insert in the color filter drawer in tens color filters, operation not only bothering but also time-consuming, and the time one is long, and color filter is fragile fuzzy; Though the color composition head color correction is easy to use, effect might as well, can not be supporting with some popular enlargers, with the dark place worker's that satisfies the popular enlarger of vast use needs.Adjusting as for light-source brightness, install color filter drawer or color composition head additional and all do not have this function, when amplifying the excessive or too small egative film of density, usually lens aperture increases or the method for minimizing time shutter is controlled exposure with changing, but aperture is opened the too much or too small camera lens optimal light coil imaging advantage clearly that all can not make full use of, because photosensitive material itself exists the reciprocity failure factor, time shutter is oversize or too short, the density that produces after identical exposure is developed is not necessarily identical, even adopt the automatic exposure device, as not regulating plus-minus density, also be difficult to obtain correct exposure.

The purpose of this utility model is to provide a kind of color correction and regulates light-source brightness is the color correction density device of one.Overcome that the best aperture of enlarging lens for a long time can not be fully utilized and the shortcoming of reciprocity failure factor affecting correct exposure, to adapt to vast photography dark place worker's needs.

The utility model constitutes by color filter, gray density sheet, photo mounting stand, pivot pin, connecting rod, branch bar sheet, base plate, thermal insulation board, button, shell and with the supporting coupling of enlarger.Wherein the photo mounting stand rectangle septum that has a positive square hole by the centre is layering and forms, between each sheet septum the slit is arranged, the Huang of different densities, magenta, blue or green three complementary color color filter and gray density sheet are installed between the slit in certain sequence, elongated wire-pin passes the reinforcing angle of each septum and color filter and gray density sheet, makes density sheet and gray density sheet can rotate 90 ° (being that color filter or gray density sheet enter or withdraw from the middle square light hole of photo mounting stand) at layer crack spaced winding pivot pin separately.The connecting rod that two ends have little crotch links to each other with color filter and gray density sheet corresponding buttons respectively by dividing the bar sheet, and integral body is packed on the base plate.

Color filter is yellow, pinkish red, blue or green three groups of colors, and the different density of the depth is arranged in the color on the same group, has adopted the gray density sheet of one group of different densities value simultaneously, is used to regulate light-source brightness.

At color filter and gray density sheet one jiao outshot slightly, reinforce with sheet metal, and certain position in the above is drilled with two apertures, wherein an aperture is used to wear pivot pin, and an end of another aperture and connecting rod is hook company mutually.

Divide the bar sheet be " " type; there is row's aperture the one side, and the another side is drilled with two row's apertures, and a mounting hole is respectively arranged up and down; when connecting rod is done the time spent with color filter, gray density sheet and button interlock respectively by minute bar sheet and by the little crotch at two ends, divide the bar sheet can guarantee the stability of its action effectively.

Block button, its front is carved with the density value label and is added density mark, the back side is drilled with two apertures, a hole is a mounting hole, the little crotch connecting hole of another Kong Weiyu connecting rod, the button of different colours and label is installed on the button panel by the elongated pivot pin that passes button panel in certain sequence, and it is moving to admire around about pivot pin, drivening rod and act on color filter or gray density sheet.

For reducing the influence of light source heat radiation to color filter and gray density sheet, prevent dust, on the photo mounting stand of color correction density device, add and used one deck thermal insulation board, and on its logical light frame, a heat-protecting glass has been installed.

Shell is made up of shell and shell bonnet, and effect is fixing and the protection interior arrangement, and button panel and the coupling and the supporting installation of enlarger of fixed outer, makes the not outwards transmission of its light.

Coupling has designed respectively with square light chamber and has been connected supporting two kinds with round smooth chamber enlarger, and every kind of coupling divides two clamping rings, one be contained in above the color correction device for and light chamber clamping ring, another be contained in below the color correction device for and collecting lens place clamping ring.The square coupling is applicable to that square light chamber enlargers such as F-5 type, red plum FD-2 type connect supporting; Round annex is applicable to that round smooth chamber enlargers such as F-1 type, extra large Europe 61-1 type connect supporting.

Below in conjunction with description of drawings architectural feature of the present utility model:

Fig. 1---main part assembling synoptic diagram of the present utility model

Fig. 2---septum synoptic diagram

The shape synoptic diagram of Fig. 3---color filter, gray density sheet

Fig. 4---base plate synoptic diagram

Fig. 5---divide bar sheet synoptic diagram

Fig. 6---button panel synoptic diagram

Fig. 7---button synoptic diagram

Fig. 8---color filter (or gray density sheet) action synoptic diagram

Fig. 9---shell synoptic diagram

Figure 10---square annex and light chamber clamping ring synoptic diagram

Figure 11---square annex and collecting lens place clamping ring synoptic diagram

Figure 12---round annex and light chamber clamping ring synoptic diagram

Figure 13---round annex and collecting lens place clamping ring synoptic diagram

Figure 14---color correction density device and the supporting installation site of enlarger, square light chamber synoptic diagram

Figure 15---color correction density device and the supporting installation site of enlarger, round smooth chamber synoptic diagram

Wherein:

1---septum clamping screw 2---thermal insulation board

3---intermediate plate 4---heat-protecting glass clamping screw

5---heat-protecting glasses 6---divide bar sheet gib screw

7---septum 8---color filter (gray density sheet)

9---wearing sheet pivot pin 10---are divided the bar sheet

11---connecting rod 12---base plate

13---the base plate mounting hole

14---color filter (gray density sheet) is worn pin hole

15---color filter (gray density sheet) and connecting rod working hole

16---button is installed and is worn pin hole

17---button panel fixed orifice 18---button

19---button mounting hole 20------shell bonnet 22---shell 23---square light chamber clamping ring 24---the round collecting lens clamping rings of square collecting lens clamping ring 25---round smooth chamber clamping ring 26---with connecting rod working hole 21

High-ranking officers' color density device is installed in and just can carries out colour between the light chamber of enlarger and the collecting lens and amplify, and proofreaies and correct the color picture colour cast, regulates light-source brightness.

Compared with prior art, its advantage of the utility model, the one, it is very convenient that push button is regulated, during operation as required, as long as press the button of respective color and density value label, just can arbitrarily use any one or several sheets colour filter or gray density sheet, exactly under complete black condition with feel according to the putting in order of button, also can operate exactly; The 2nd, adjustable range is big, has increased the 30-70 density value than general color composition head adjustable range, thereby has improved the success rate that the excessive color transparency of colour cast amplifies color picture; The 3rd, the function that adopts the distinctive gray density sheet of the utility model to regulate light-source brightness, lens aperture can be fixed on the best aperture position during amplification, press plus-minus density button, regulate light source and see through the logical light quantity that egative film arrives printing paper, both can take full advantage of best aperture, not be subjected to again the oversize or too short impact that causes the reciprocity failure factor of time for exposure.

The utility model and enlarger supporting owing to adopt the mode of coupling to design, can with the black and white that can separate between various model light chamber and the collecting lens or dual mode enlarger is supporting be connected.

Embodiment: septum casts with rigid plastic that 150 * 78mm large tracts of land is thick to be the rectangle thin plate of 1.5mm, 10mm wide place thickening in two ends is stayed the hole (being used for the tight screw rod of clamping) of 4 ∮ 4mm for stay the light hole of 58 * 58mm in the middle of the 2.5mm by end thickening place in two ends thickening place; Color filter adopt to be gone up marine products terylene color filter and is cut into 64 * 64mm, and the one cornicult goes out the square of 20mm, and outshot is with 0.2 sheet metal, and tacky on two sides is reinforced, and is reinforcing two 1mm apertures of place, angle brill, and two aperture pitch are 1.5mm; The gray density sheet adds dyestuff with terylene sheet base, and to make its form factors identical with color filter; Base plate is made the light hole of opening 58 * 58mm in the middle of the rectangle of 160 * 104mm from an end 20mm place with the thick iron sheet of 1mm, all around with screw tap bore 15 ∮ 4mm screw hole (be used for septum clamping screw and with the fixing of shell and coupling).Respectively bore the aperture (being used for fixing an end of wearing the sheet pivot pin) of a ∮ 0.8mm in addition far from limit 5mm place on both sides; Divide the bar sheet to be converted into the rectangular framework of 62.5 * 30mm with the wide iron sheet of the thick 16mm of 0.35mm, a row ∮ 1mm totally 12 apertures are bored in a side, and spacing is 5mm, the another side bore two row ∮ 1mm totally 12 aperture pitch be 11mm, respectively bore a ∮ 4mm up and down a hole be installed; Button panel is cast 140 * 70mm with plastics, thickness is the rectangle of 10mm, divide both sides, divide two groups on one side, stay the dress buttonhole of 24 14 * 5.5mm altogether, pin hole is worn in the installation of staying ∮ 0.8mm to gang up up and down on the midline position of dress buttonhole, and the distance between two groups of pinned holes is 23mm, stays totally 4 of the button panel mounting holes of ∮ 4mm between the two assembling buttonholes; Button is cast the plastics square of Huang, magenta, green grass or young crops, four kinds of color 13 * 5 * 10mm of ash, its 13 * 5mm is that the front engraves the density label and adds density mark, on the midline position of back side 3mm, boring ∮ 1mm mounting hole, apart from a 1mm of mounting hole 5mm place brill with the connecting rod working hole; Shell is made the rectangular flask that 165 * 140 * 70mm leaves light hole and after-opening with the thick iron sheet of 3.5mm, and bonnet is also made with iron sheet; Coupling is made with the iron sheet of 0.35mm, and the specification of its clamping ring is pressed the model of enlarger and the interface specification between light chamber and the collecting lens and decided.

Main body is installed: septum (7) is layering, with ∮ 4mm screw rod (1) and top thermal insulation board (2) and base plate (12) clamping.One end hook of connecting rod is lived the connecting rod working hole (15) of color filter and gray density sheet, the color filter and the gray density sheet that install connecting rod are inserted respectively in the slit of each septum by the order of color and density, pass each septum and color filter and gray density sheet with the finer wire pivot pin (9) of ∮ 0.8mm and reinforce the pin hole (14) at angle and again connecting rod is passed branch bar sheet (10), and will divide the bar sheet to be fixed on thermal insulation board and the base plate.

In agent set pack into shell from after-opening, and connecting rod is passed shell curve little hook, button is contained on the connecting rod hook, loading onto button panel is through button on the button plate hole with the finer wire pivot pin of ∮ 0.8mm, and button panel is fixed on the shell with the screw of ∮ 4mm, again heat-protecting glass is loaded onto, clamped with screw (4) and intermediate plate (3).

Press the model of enlarger and the interface specification between light chamber and the collecting lens at last, select coupling for use, fix with screw and shell and base plate, and fix bonnet, can with the supporting use of enlarger.

Claims

1, color correction density device, it is characterized in that the density device is by button, color filter, the gray density sheet, photo mounting stand, pivot pin, connecting rod, divide the bar sheet, base plate, thermal insulation board, shell and coupling constitute, the rectangle septum that photo mounting stand has a square hole by the centre is layering and forms, and the slit is arranged between septum, the color filter of different colours and density and gray density sheet are installed between the slit, elongated pivot pin passes each septum and color filter and gray density sheet one jiao, make color filter and the gray density sheet can be separately layer crack spaced winding pivot pin rotating certain angle (can enter or withdraw from photo mounting stand in the middle of square light hole), the connecting rod that two ends have a little crotch by divide the bar sheet respectively with color filter and gray density sheet corresponding buttons interlock, integral body is packed on base plate and the shell;

2, color correction density device according to claim 1, the profile that it is characterized in that color filter for "

", one jiao of slightly outstanding part is reinforced, and there are two apertures at certain position place above it.

3, color correction density device according to claim 1, it is characterized in that color filter be yellow, pinkish red, blue or green three groups, the gray density sheet is one group, and is regulated by corresponding four groups of buttons.

4, color correction density device according to claim 1 is characterized in that entering light path with the gray density sheet regulates light-source brightness.

5, color correction density device according to claim 1, it is characterized in that branch bar sheet for "

" type, and a side is drilled with row's aperture, and the another side is drilled with two apertures that parallel of row, and upper and lower respectively have one by the dress hole.

6, color correction density device according to claim 1 is characterized in that coupling has square and circular two kinds, and square coupling is connected supporting with the enlarger of square smooth chamber, with the join domain of light chamber interface be below ∮ 140 * 120mm; Round annex and round smooth chamber join domain are ∮ 100-140mm.