DE1619535U - APERTURE FLAP CONTROL IN FRONT OF A PHOTOCELL ON PHOTOGRAPHICAL APPARATUS OR THE LIKE. - Google Patents

Description

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Fig.2 a shutter control in front of a

Photocell with nested cams, the setting dials for the aperture

f or Exposure time and film speed

wear.

For the execution according to Fig.1;

The photocell 1 is normally controlled by the

away
Aperture flaps 2 and 2 covered. Should be a partial

• If the photocell is released, this is done by

away

the shutter flaps 2 and 2, by turning the cam 4, over which your rod 5 is pivoted so that the slot 3 is formed. With the curve «

disc 4 is an epicyclic gear 6 connected. This \, stands with its wheel 6 ^a with the toothing 7 ^{a of} the one

adjusting disk 7 respectively for the exposure time. Film sensitivity

b a

possibility and with his wheel 6 with the toothing 8 de:

Aperture setting disk 8 in engagement. The 'wheels 6 ^a and 6 also mesh with one another. On the setting slide 7 there is a part 7 ° of one section 7 that carries the exposure times 7 and can be moved for this purpose

Has. In the latter, the respective film speed

e f

read value 7. A pointer 7 works with the

'Time scale 7 together. The adjusting disk 8 carries the

• b c

Aperture scale 8. with the die Festmarke 8 cooperation

If now one of the bin setting disks 7 respectively. 8th

\ rotated, the epicyclic gear 6 rolls in each case on d

other shim and takes the cam

inevitably with. The exposure time or the aperture can thus be changed independently of one another. This change is only transferred to the cam disk 4, which ^{actuates the control linkage 5 ″ through its curve 4 a} and thus regulates the slot width 5 through the diaphragm flaps 2 ^a and 2 °.

For the execution according to Fig. 2i

As after the execution according to Fig. 1, the Photocell 1 covered by shutter flaps 2 and 2 The cam 9 * which is rotatably arranged centrically to the optical axis, carries the aperture scale 9 "" around the mentioned Cam 9 stores around, by means of guides

away

10 and pins 10 displaceable parallel to the control linkage 5, a transmission ring 10, which ^{rests with its rabbit 10 G} on the circumference of the cam 9. The cam ring 11 is mounted around the Hing 10, rotatable for this purpose. It ^{bears the film sensitivity scale 11 a.} About this gleii: guided in a suitable manner around the cam ring 11, a part 11 ^C carrying the BeIi processing scale 11, which has a cutout or the like 11. The scale 11 works together with a fixed indicator 12.

From the foregoing it follows that in (Jebrauc the device first the sensitivity value of the film in section 11 and then the exposure value to the fixed pointer 12 is set. This results in the adjustment of the cam ring 11, and, by means of its curve 1

at the same time the adjustment of the linkage 5 » Once this has been done, the aperture is set by pressing the scale . 9 ^a ,
ie · Setting the aperture value (pointer or the like ·) 9, regulated. The rabbit 10 ^c slides along the Kurye 9 ^C , whereby the displacement of the part 10 takes place and thereby the part 11 is also moved »As a result of the

. Interaction of the parts, the control linkage 5 is still-

■ "" ■■ - '■■. ■ ■ ■ '' from '

maize moves. and thus the aperture flap a. 2, 2 brought into the required position of use *

Claims (8)

PaAgfet claims 1.) Photocell with shutter flaps on photographic apparatus or the like. for regulating a measuring instrument, characterized in that the diaphragm flap is controlled by one or more cam disks which work together via a gear or directly with the adjustment scales for aperture, exposure time and image sensitivity ₀ 2.) Photocell according to claim 1, characterized in that the opening or closing of the shutter flaps inevitably takes place in the opposite direction " 3.) Photocell according to claim 1 and 2, or one of the same, characterized in that the regulation of the slot width the shutter flaps by changing the setting of aperture and / or exposure time "or pilia sensitivity he follows. 4.) Photo cell according to 'claim 1 "to 3, or one or several of the same, characterized in that the regulation of the slit width of the diaphragm flaps by a single cam takes place, which is via a differential gear from the aperture or. Exposure ring resp. i'milmenpfindlichlieits-setting part is controlled, 5.) Photo cell according to claim 1 to 3j or einia or several of the same, characterized- that the regulation of the slit width of the lead flaps over - 6- two nested cam discs)! or the like takes place, one of which carries the aperture scale, the other the exposure time scale. 6.) Photo cell according to claim 5> characterized that the squat ring reaching around the inner cam is guided in such a way that the scanning noc. in the direction of the control linkage for the shutter; emotional. 7 ·) Photo cell according to claim 1 to 6, or one or more of the same, characterized in that ij a section ο »dgl · the exposure times and Aperture scale of the corresponding film sensitive Jceit! value is set » 8.) Photo cell according to claim 1 to 7> or one or several of the same, characterized in that the shutter flaps completely or partially: grip around cylindrically. Kodak Corporation Dr. Nagel _r work