Abstract: A voltage reference circuit comprising: a main amplifier, having an output-terminal for providing a reference-voltage-output-signal, wherein the output-terminal is connected to the first-input-terminal; an offset-stage, connected to at least one of a first-input-terminal and a second-input-terminal of the main amplifier; and a PN junction. The PN junction is configured, in use, to provide a junction-voltage, between the first-junction-terminal and the second-junction-terminal, wherein the junction-voltage decreases with increasing temperature. The offset-stage is configured, in use, to provide an offset-voltage between the first-input-terminal and the second-input-terminal, wherein the offset-voltage increases with increasing temperature.

Abstract: An image pickup apparatus that is capable of reducing variation in the color temperature of a subject in a taken image and capable of shooting a more suitable image. The image pickup apparatus can shoot with emitting a light emitting unit. A color temperature acquisition unit acquires information about a color temperature of a light illuminating a subject. An emission control unit controls emission of the light emitting unit. The emission control unit determines emission light amount of the light emitting unit based on a color temperature difference between a color temperature of an illumination light of the light emitting unit and a color temperature based on the information acquired by the color temperature information acquisition unit.

Abstract: It is possible to provide a user-friendly camera. Provided is an illumination device for emitting illumination light for photographing by a camera including: a light emission unit which can emit lights of a plurality of different colors and/or a plurality of different light emission amounts as the illumination light; and a light emission control unit which controls the light emission unit so as to continuously emit the illumination light while changing the color and/or the light emission amount as the time elapses, independently of photographing by the camera.

Abstract: An imaging apparatus with an image sensor and a correction optical system movable in a direction perpendicular to an optical axis includes a vibration detection unit configured to detect a vibration applied to the imaging apparatus, a vibration correction unit configured to drive the correction optical system to correct an image vibration according to an output from the vibration detection unit, a motion vector detection unit configured to detect a motion vector based on an image signal output from the image sensor, an amplifier unit configured to amplify the output from the vibration detection unit, a gain setting unit configured to set a gain of the amplifier unit based on the motion vector; and a gain control unit configured to allow or inhibit the setting of the gain of the amplifier unit set based on the motion vector, according to a change of an imaging condition of the imaging apparatus, wherein the vibration correction unit performs a vibration correction based on the output from the vibration detecti

Abstract: An image pickup apparatus that is capable of reducing variation in the color temperature of a subject in a taken image and capable of shooting a more suitable image. The image pickup apparatus can shoot with emitting a light emitting unit. A color temperature acquisition unit acquires information about a color temperature of a light illuminating a subject. An emission control unit controls emission of the light emitting unit. The emission control unit determines emission light amount of the light emitting unit based on a color temperature difference between a color temperature of an illumination light of the light emitting unit and a color temperature based on the information acquired by the color temperature information acquisition unit.

Abstract: A photographic apparatus comprises an information obtaining unit and a controller. The information obtaining unit obtains information regarding a photographic subject image. The controller performs a switching control that changes a first use mode to a second use mode on a basis of the information. The first use mode is set by a user, and the second use mode is different from the first use mode.

Abstract: This document relates to an apparatus and method for controlling a camera according to temperature. The apparatus according to an embodiment of this document may comprise a camera comprising lenses comprising a focus lens, an iris, a lens barrel, a motor drive for controlling positions of the lenses and the iris, and a CCD, a temperature sensor for measuring a temperature of the camera, memory for storing information about a relationship between temperatures and positions of the lenses, and a state of the camera, and a controller for controlling the camera to capture an image, measuring temperature variation between a current state and a previous state through the temperature sensor, calculating a position where the focus lens has been moved according to the temperature variation based on the relationship information of the temperatures and the positions of the lenses, and determining whether to compensate for the moved position.

Abstract: An imaging apparatus includes an image sensor configured to capture an image of an object, a mechanical shutter including a second curtain and a second-curtain holding mechanism configured to electromagnetically hold the second curtain at an initial position prior to a travel, a first temperature sensor disposed within a predetermined range from the second-curtain holding mechanism, a second temperature sensor disposed outside the predetermined range from the second-curtain holding mechanism, a determination unit configured to determine an exposure time for the image sensor according to a brightness of the object, an adjustment unit configured to adjust the exposure time if a temperature difference between temperatures detected by the first and second temperature sensors is greater than a predetermined threshold, and an exposure control unit configured to perform exposure control for the image sensor based on the exposure time adjusted by the adjustment unit if the temperature difference is greater than the p

Abstract: A sensor mounting system for enabling image stabilization in a digital camera is described. An electronic array light sensor is moved in relation to other parts of the camera in response to camera motion. In one embodiment, the sensor is moved by at least one linear motor having a ferrofluid in a gap of the linear motor. Other aspects of the system are described, including methods of heat sinking the sensor, a suspension system, methods of compensating for an effect of temperature on the ferrofluid, and a compact magnet configuration for forming the linear motor and providing feedback as to the position of the sensor.

Abstract: Systems, methods, and other embodiments associated with automatically optimizing cyclic integration are described. One method embodiment includes repetitively acquiring a thermal intensity data using an infrared detector configured to operate for an integration time. The method embodiment may also include extracting a useable data from the intensity data and then updating a rolling composite image with the useable data. The method may also include selectively automatically updating the integration time based on whether the thermal intensity data included a value that fell outside the pre-determined range.

Abstract: In one example, a method for controlling temperature in a projection device, comprises measuring a plurality of temperatures in the projection device; averaging said plurality of temperatures to determine an averaged temperature; determining an error between a set-point temperature and said averaged temperature; and automatically adjusting a blower in said projection device based on said determined error. In another example, a method for controlling temperature in a projection device having a lamp and a blower comprises measuring temperature in the projection device; and selectively adjusting both a first signal to the blower and a second signal to the lamp based on said measured temperature to control temperature in the device.

Abstract: A method and apparatus for determining the illuminant type in a digital image. A photo sensor that has an array of photo-cells that detect non-visible light, embedded in the array of photo-cells that detect only visible light is disclosed. Using the visible light photo-cells in conjunction with the non-visible photocells, the type of illuminant for the scene can be determined.

Abstract: An exposure control method and apparatus for a camera having a two-area divided brightness measurement system. A central light value is determined based on a central area brightness of a photographic scene, and a peripheral light value is determined based on a peripheral area brightness of the scene. After determining by comparison between the central and peripheral light values whether the scene is back-lighted or front-lighted, a correction coefficient specific to back-lighted scenes or that specific to front-lighted scenes is read from a memory. An exposure value suitable for a main subject is calculated according to the following equation: Es=log2{1−(1−&agr;)2LVb−LVa}−log2&agr;+LVa wherein Es represents the exposure value and &agr; represents the correction coefficient.

Abstract: A camera includes a shutter unit for limiting the exposure time to a record medium, a shutter time setting unit for setting the shutter time of the shutter unit, a shutter drive and control unit for driving and controlling the shutter unit, a shutter condition detecting unit for detecting the condition of the shutter unit, a manifesting unit for manifesting the result detected by the shutter condition detecting unit, a manifestation control unit for driving and controlling the manifesting unit and a memory unit for previously storing inherent data to detect with the shutter condition detecting unit whereby a photographer is informed of the fact that the detection accuracy of the detecting element is insufficient for a shutter time, thus dealing with the situation. The manifestation control unit drives the shutter condition detecting unit, based on a shutter time set by the shutter time setting unit and inherent data stored in the memory unit, thus notifying the shutter condition detecting unit of the result.

Abstract: The present invention relates to an electronic apparatus which is arranged to drive a load by means of a microcomputer to which the boosted voltage obtained by boosting a battery output by boosting means is applied. The present invention also relates to a method of making the boosting means inoperative upon completion of a load-driving operation by the computer after the battery output is restored to a predetermined level, and switching the voltage to be applied to the microcomputer in the electronic apparatus from the boosted output to the battery output, thereby preventing the microcomputer from malfunctioning due to a lowering in the battery output.

Abstract: In a camera controller using a CMOS-analog-IC, a microcomputer, logarithmic compression type distance measuring and photometric circuits, each constituted by a CMOS device having a parasitic bipolar transistor having a p- or n-type well as a base and an n.sup.+ -type layer in the p-type well or p.sup.+ -type layer in the n-type well as an emitter, and the like are arranged on the same chip.

Abstract: There are provided a method and apparatus capable of estimating a color temperature of a photographic light source. A theoretical reference value is obtained which is represented by summation or integration of the product of a spectral energy distribution of an object having a known color temperature, a spectral sensitivity distribution of a photometric system, and a spectral reflectance distribution defined by a certain expression. An actual value is acquired by measuring at least a portion of light reflected from a body which is exposed to light emitted from a light source whose color temperature is to be estimated. Spectral reflectance distributions are calculated for a plurality of color temperatures such that the difference between the theoretical reference value and the actual value becomes minimum. A calculation is performed to obtain the sum of abnormal components of the obtained spectral reflectance distribution whose maximum values exceed 1.