DE1497942C - Camera with built-in measuring mechanism - Google Patents

Description

the latter is provided with a pointed comb as a delimitation. When swiveling the measuring mechanism in one or the other end position cover the symbols 11 and 12 the area of the solar symbols 6, while the dial tone is fully visible in between.

With this arrangement, the following can be achieved with a camera that can be set to two exposure times display four exposure conditions in the viewfinder:

IO

1. There is not enough light to take a picture with daylight, in this case covers the wing 9 completely removes the sun symbol 6 and the lightning arrow 11 becomes, since it is smaller than that Sun symbol, visible through this. The timer should work on the longer, for Suitable exposure time must be set for flash photography.

20th

2. If the flag 8,9 only half covers the sun symbol, the lightning symbol is already in the edge area of the covered sun symbol 6, is therefore no longer recognizable as a lightning bolt. This Position corresponds to the drawing in FIG. 1. Such a half-covered one The sun is also a symbol on the exposure time handle of the camera as a sign for overcast weather. In this case, the aperture of the automatic is exactly the same as for the ones below 1. ratios described to their largest opening, for example 1: 8 open.

3. If there is enough light, the sun symbol 6 is completely released. In this case it is also short after the complete release still the largest aperture, namely 1: 8 through the diaphragm blade 2 is set. The full sun symbol reminds the user, now from the exposure time for cloudy weather or for lightning to the shorter exposure time toggle for bright weather. This setting now applies to the entire fair weather area, for which the automatic aperture can set the values aperture 8 to aperture 22, for example.

4. Is the brightness so great that even with the smallest aperture (for example, aperture 22) overexposure occurs, the tip comb 12 dips into the sun symbol 6 and shows thereby urgently exceeding the automatic range of the camera for the user on.

1 sheet of drawings

Claims (3)

1 2 f-number area between the. Claims: mirror and the fixed brand and, if the lighting is too strong, the colored area preferably between 1. Camera with built-in exposure metering illumination window and mirror swivels. Through this Werk and a 5 connected to its rotating coil, it is possible in the known case, both the loading cover flag, in the case of unsuitable lighting areas to lower as well as too high brightness of the conditions of an object to be brightened that is conspicuously visible in the viewfinder 'and; With sufficient To cover free characters, thereby marked brightness to display the set aperture values, shows that in the light frame plate (4), however, an additional mirror is required of the viewfinder as a dial tone is io in the viewfinder field. depicting, in the form of a sun symbol, all of these facilities are disadvantageous, however, unlike large breakthrough (6) is planned and sometimes because of Verdaß, which is disadvantageous in terms of manufacturing with the rotating coil (7) of the measuring mechanism (1) use of red and green color foils, others connected opaque flag (9) on the one hand, because it is too small for color-blind people, designed in the form of a lightning bolt symbol. Has opening (11) which is not or only · The invention has the object small deflection of the measuring mechanism in front of the large, an effective and clear display of the ßen breakthrough (6) pushes and through the exposure metering area in the viewfinder and the knowledge diving the lightning symbol in the dial tone both inadequate and excessive for flash exposure. 20 ßer brightness in a simple way bypassing 2. Camera according to claim 1, characterized by red-green color foils and without the need draws that with the opaque flag (9) to create an additional mirror. a second flag (10) delimited in a serrated manner. The object is thereby bound according to the invention which dissolves at the maximum deflection is that, starting from a Kades known per se Measuring mechanism before the big breakthrough (6) 35 mera with built-in exposure measuring mechanism and one pushes and through the emergence of the serrated cover flap connected to its rotating coil contours in the free character the overlap of the ■ in the case of unsuitable lighting conditions an im indicates the upper limit of the exposure range. Viewfinder to cover a conspicuously visible dial tone, 3. Camera according to claim 1 or 2, characterized in the light frame plate of the viewfinder as a free mark, that the one with the free character (6) is displayed in the viewfinder field in the form interacting opaque flag or a sun symbol designed large breakthrough Flags (9, 10) and which influence the exposure is provided and that the with the rotating coil of the Send aperture vane (2) punched from a piece of a measuring mechanism connected opaque vane are.' small opening shaped like a lightning bolt 35, which manifests itself in little or no rash of the measuring mechanism before the big breakthrough ~ "pushes and by the appearance of the lightning symbol indicates the need for flash exposure in the dial tone. The invention relates to a camera with 40. The invention is based on the figures, a built-in exposure meter, as they represent an embodiment, explained in more detail, are known. Such an exposure meter has been shown so far Werk used to on the one hand the film exposure the F i g. 1 is a plan view of a according to the invention to adapt external brightness, on the other hand, also, dung designed camera with light frame plate to use a red-green signal in the viewfinder to control the user 45 and exposure meter, to indicate whether a recording makes sense (green) F i g. 2 shows a section along the line II-II of FIG or unfavorable because of insufficient brightness or Fig. 1.
impossible (red). The example of the figures shows a into the camera In a group of this type, a red "built Belichtungsmeßwerk 1, this is brand due to insufficient light, a green 50 embodiment having a diaphragm vane 2 shipping mark with sufficient, but also in hen excessive loading in \ and in. Connection appears a cat's eye lighting, so that the known simplest type of diaphragm exposure is not given at all against fading 3. In another group, automatic is shown is not bound to this automatic system, it can be brought into erasable marks in different, non-adjacent bindings, which are arranged on a measuring tool pointer, for example also with a scanning exposure meter. Positions of the meter pointer in the lighting As F i g. 1 shows is in the light frame plate 4 beam path of a translucent mark one of the bright frame finder device 5 as a free character is pivotable, whereby the fixed mark through which a relatively large opening 6 is attached, movable mark is covered. The 60 is also in the form of a stylized sun. With The case provided that the moving coil 7 of the measuring mechanism 1 arranged on the measuring tool pointer is also unnete additional mark is broadened and differently transparent, advantageously made of thin has dene areas, the one area of the sheet metal stamped flag 8 connected, which according to the Mark is colored transparent and the other area embodiment with the aperture vane 2 off neutrally transparent and provided with f-number 65 is punched in one piece. The flag 8 carries two whistles, in such a way that if there is insufficient illumination of the gel 9 and 10, of which the former is colored with a Area preferably between the mirror and punched, executed as a breakthrough and opposite the fixed mark, with sufficient lighting the lightning symbol 11 and, which is smaller than the solar symbol