| 摘要 |
A camera has a digital exposure display device and a digital fixed point match type exposure display device. The digital exposure display device compares a voltage associated with an exposure value such as a shutter time value or an aperture value obtained from exposure operating means with a plurality of reference voltages produced by a reference voltage generating circuit and thereby converts the exposure value into a digital signal and digitally displays the exposure value on the basis of said digital signal. The digital fixed point match type exposure display device comprises an exposure value setting circuit for generating a voltage associated with a manually set exposure value, differential amplifier circuit means for producing a voltage including a voltage corresponding to the difference between the voltage of the exposure value setting circuit and the voltage obtained from the exposure operating means, forming means for forming a first comparison voltage and a second comparison voltage greater than the first comparison voltage by using the output voltage of the reference voltage generating circuit, comparing means for comparing the comparison voltage of the forming means with the output of the differential circuit means and generating a first signal variable in condition depending on whether said output is smaller or greater than the first comparison voltage and a second signal variable in condition depending on whether said output is greater or smaller than the second comparison voltage, and display means operative to effect a display based on the first and second signals of the comparing means.
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