摘要:
A zoom lens system shifts the position of front and rear lens groups relative to each other in the direction of the optical axis to change its focal length, by moving a lens barrel back and forth in the axial direction. The lens barrel is formed with cutouts in its rear portion for receiving therein parts and elements projecting forwardly from the plane in which an exposure aperture is located when the lens barrel is retracted, so as to reduce the thickness of the camera with the retracted zoom lens. A focal length changing mechanism comprises a fixed cam and a lever attached to the lens barrel which is turned by the cam when the lens barrel moves back and forth to shift one lens group, thereby changing the focal length of the zoom lens to desired focal lengths. To correct the changes in focus of the zoom lens caused by the change of focal length, an adjusting member is provided in the focal length changing mechanism. An encoder is provided in the camera to detect the shifted axial positions of the lens barrel.
摘要:
Disclosed is an electronic timepiece, comprising: a second hand and a minute hand; a stepping motor which performs a stepping drive of the hands; a rotating body which includes a target section, and rotates with the second hand; a detection section which detects an existence of the target section; a detection control section which makes the detection section operate by every rotation period, to make the detection section detect the existence of the target section at a first timing and at a second timing; a hand position counter which counts estimated positions of the hands based on the number of drive times of the stepping motor; a counted value holding section capable of temporarily holding a value of the hand position counter; a counted value saving section which makes the counted value holding section hold the value; and a counted value correcting section which corrects the value.
摘要:
Disclosed is an electronic timepiece, comprising: hands which indicate time to display the time; a stepping motor which performs a stepping drive of the hands; a drive control section which supplies the stepping motor with drive pulses; a hand movement examining section which examines whether the hands are moving or not; and awaiting control section which temporarily interrupts a supply of the drive pulses by the drive control section to be in a waiting state, when the hand movement examining section judges that the hands are stopped, wherein the supply of the drive pulses by the drive control section and an examination of whether the hands are moving or not by the hand movement examining section are respectively restarted, after the waiting control section has released the waiting state.
摘要:
Disclosed is an electronic timepiece, comprising: a second hand and a minute hand; a stepping motor which performs a stepping drive of the hands; a rotating body which includes a target section, and rotates with the second hand; a detection section which detects an existence of the target section; a detection control section which makes the detection section operate by every rotation period, to make the detection section detect the existence of the target section at a first timing and at a second timing; a hand position counter which counts estimated positions of the hands based on the number of drive times of the stepping motor; a counted value holding section capable of temporarily holding a value of the hand position counter; a counted value saving section which makes the counted value holding section hold the value; and a counted value correcting section which corrects the value.
摘要:
The present invention relates to a position data/display control apparatus and method which uses received position data to display data on the present position. A user selects the nearest area to the user's present position, as determined from received position data, from a storage means which stores a plurality of area names and data for measurement of positions in areas corresponding to the area names. Upon selection, the present position data is converted to position data suitable for measurement of the user's present position based on the data for measurement of a position in an area corresponding to the selected area name. The converted position data is then displayed to the user. Advantageously, a user's present position is displayed relative to the geodetic system in the area corresponding to the selected area name.
摘要:
A camera for use with a Brownie roll film having a bar code containing data about a roll film, such as a film speed and a roll film type. The bar code is printed on an adhesive tape which secures light-shielding paper to a leading end of a photo filmstrip of the roll film. As soon as the roll film is loaded with its leading end of the light-shielding paper secured to a take-up spool of the camera, the camera starts rotating the take-up spool and, simultaneously, a reflective photo sensor starts scanning. Based on output signal from the photo sensor and the transport amount of the filmstrip, a first frame exposure portion of the filmstrip is automatically positioned behind an exposure aperture. The number ofavailable exposures is derived from the roll film type data read from the bar code, and is displayed on an LCD panel. An automatic exposure control is effected while taking the film speed read from the bar code into consideration.
摘要:
An electronic timepiece includes: a power generation unit that generates power by taking in energy from outside; a battery that stores the generated power; a generated power monitor that intermittently and repeatedly measures the power generated by the power generation unit; an input amount analyzing section that performs an analysis on an energy input amount based on the measurement results of the generated power monitor; and a power generation urging notification controller that starts power generation urging notification if it is determined, based on the analysis result of the input amount analyzing section, that the energy input amount is low on average.
摘要:
It is determined whether light has passed through apertures in a seconds, a center and an intermediate wheels and a relevant one of apertures in an hour wheel, thereby determining their respective rotational positions. When the center wheel rotates one step at a time in a predetermined direction to such a position that the apertures in the center and intermediate wheels align and a detection unit detects light which has passed thorough the apertures, the center wheel is returned twelve steps or more in the reverse direction. The center wheel is again rotated one step at a time in the predetermined direction to the position where the detection unit detected light first. When the detection unit again detects light at that position, this position is determined as the reference position in the center wheel.
摘要:
When a raw water to be filtered c is fed from a raw water tank 11 reservoiring a raw water (water to be treated) to a membrane module by a raw water pump P1, an activated carbon raw material supplied from an activated carbon tank is milled together with water to be mixed by a wet milling device, and added and mixed into the raw water tank as an aqueous suspension containing activated carbon fine particles having an average particle size of 0.1 μm to 10 μm, thus producing the raw water to be filtered (activated carbon-containing water to be treated). The raw water to be filtered (activated carbon-containing water to be treated) is filtered by the membrane module at a subsequent step, thereby obtaining a purified water.
摘要:
When a raw water to be filtered c is fed from a raw water tank 11 reservoiring a raw water (water to be treated) to a membrane module by a raw water pump P1, an activated carbon raw material supplied from an activated carbon tank is milled together with water to be mixed by a wet milling device, and added and mixed into the raw water tank as an aqueous suspension containing activated carbon fine particles having an average particle size of 0.1 μm to 10 μm, thus producing the raw water to be filtered (activated carbon-containing water to be treated). The raw water to be filtered (activated carbon-containing water to be treated) is filtered by the membrane module at a subsequent step, thereby obtaining a purified water.