IMAGING APPARATUS
First Claim
1. An imaging apparatus, comprising:
- a viewfinder optical system for guiding an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface;
an imaging element for generating an image signal in response to the reception of the observation light beam;
exposure control means for performing exposure control of the imaging element in response to the image signal from the imaging element; and
a light sensing detector, arranged in the vicinity of the imaging element, for measuring light,wherein the exposure control means determines an exposure control value in the exposure control in response to a light measurement value provided by the light sensing detector if a predetermined condition is satisfied.
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Accused Products
Abstract
An imaging apparatus, includes a viewfinder optical system for guiding an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface, an imaging element for generating an image signal in response to the reception of the observation light beam, an exposure control unit for performing exposure control of the imaging element in response to the image signal from the imaging element, and a light sensing detector, arranged in the vicinity of the imaging element, for measuring light. The exposure control unit determines an exposure control value in the exposure control in response to a light measurement value provided by the light sensing detector if a predetermined condition is satisfied.
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Citations
12 Claims
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1. An imaging apparatus, comprising:
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a viewfinder optical system for guiding an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface; an imaging element for generating an image signal in response to the reception of the observation light beam; exposure control means for performing exposure control of the imaging element in response to the image signal from the imaging element; and a light sensing detector, arranged in the vicinity of the imaging element, for measuring light, wherein the exposure control means determines an exposure control value in the exposure control in response to a light measurement value provided by the light sensing detector if a predetermined condition is satisfied. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An imaging apparatus, comprising:
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a viewfinder optical system for guiding an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface; a first imaging element for generating an image signal in response to the reception of the observation light beam; first exposure control means for performing exposure control of the first imaging element in response to the image signal from the first imaging element; a light sensing detector, arranged in the vicinity of the first imaging element, for measuring light; a second imaging element for generating an image signal in response to the reception of the light beam from the imaging optical system; and second exposure control means for calculating a luminance of a subject in response to the image signal from the first imaging element, and performing exposure control of the second imaging element, wherein the first exposure control means determines an exposure control value in the exposure control of the first imaging element in response to the light measurement value provided by the light sensing detector if a predetermined condition is satisfied, and wherein the second exposure control means determines the luminance of the subject in response to the image signal of the first imaging element exposure controlled by the first exposure control means, and performs the exposure control of the second imaging element in response to the luminance of the subject.
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11. An imaging apparatus, comprising:
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a viewfinder optical system configured to guide an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface; an imaging element configured to generate an image signal in response to the reception of the observation light beam; an exposure control unit configured to perform exposure control of the imaging element in response to the image signal from the imaging element; and a light sensing detector, arranged in the vicinity of the imaging element, configured to measure light, wherein the exposure control unit determines an exposure control value in the exposure control in response to a light measurement value provided by the light sensing detector if a predetermined condition is satisfied.
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12. An imaging apparatus, comprising:
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a viewfinder optical system configured to guide an observation light beam to a viewfinder window, the observation light beam being output from an imaging optical system and then reflected from a main reflective surface; a first imaging element configured to generate an image signal in response to the reception of the observation light beam; a first exposure control unit configured to perform exposure control of the first imaging element in response to the image signal from the first imaging element; a light sensing detector, arranged in the vicinity of the first imaging element, configured to measure light; a second imaging element configured to generate an image signal in response to the reception of the light beam from the imaging optical system; and a second exposure control unit configured to calculate a luminance of a subject in response to the image signal from the first imaging element, and performing exposure control of the second imaging element, wherein the first exposure control unit determines an exposure control value in the exposure control of the first imaging element in response to the light measurement value provided by the light sensing detector if a predetermined condition is satisfied, and wherein the second exposure control unit determines the luminance of the subject in response to the image signal of the first imaging element exposure controlled by the first exposure control unit, and performs the exposure control of the second imaging element in response to the luminance of the subject.
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Specification