摘要:
A power focusing apparatus, while a rotary operating member is rotated calculates a motor driving speed in accordance with a rotating speed of the operating member or calculates an amount of driving the motor in accordance with a speed and an amount of rotating the operating member and drives a lens with the calculated speed or amount of driving the motor.
摘要:
The camera system comprises a camera and an external device. The camera includes a microcomputer, a write control circuit for receiving replacement data from the external device and writing the replacement data into a replacement program memory of the microcomputer, and an interface circuit for controlling a camera element in accordance with the decoded value output from an instruction decoder (ID) of the microcomputer. The external device includes a memory for storing address data to be changed in the microcomputer in the camera and replacement program data, and a transmission circuit for reading out the replacement data from the memory and transmitting the read-out data to the camera.
摘要:
An aqueous solution (20) of an alkali hydroxide is stored and held in a tank (1). An electrode (5) is disposed in the tank (1), and a member (11) coated with a Ti-derived film is disposed in the tank (1) so as to be surrounded with the electrode (5). In this state, a power source (6) applies a negative potential to the electrode (5) and a positive potential to the member (11) to flow electricity between the electrode (5) and the member (11) immersed in the aqueous solution (20). Thus, the Ti-derived film coated on the surface of the member (11) is chemically removed by the aqueous solution (20).
摘要:
A bevel gear is generated using an annular milling cutter having a blade material made of a high-speed tool steel mounted to a main body, the blade material being coated with at least one layer of a film of a composition substantially comprising (Ti(1−x)Alx)(NyC(1−y)) (where, 0.2≦x≦0.85, 0.2≦y≦1.0), and dry cutting is performed at a cutting speed in the range from 20 to 400m/min without using a cutting oil. With this method, teeth can be generated at a greatly improved cutting speed without using any expensive tool such as cemented carbide, thereby realizing efficient production of a bevel gear at a reduced cost.
摘要翻译:使用具有安装到主体的高速工具钢制成的刀片材料的环形铣刀产生锥齿轮,所述刀片材料涂覆有至少一层基本上包含(Ti(1) -x)Al x)(NyC(1-y))(其中,0.2 <= x <= 0.85,0.2 <= y <= 1.0),并且以20-400m / min,不使用切削油。 通过这种方法,可以在不使用硬质合金等昂贵的工具的情况下,以极大地提高的切削速度产生齿,从而以降低的成本实现高效率的锥齿轮的制造。
摘要:
A camera has a finder device. A liquid crystal element is arranged in the finder device and has an image area and at least one of an index area indicating an image range and an index area indicating information relating to photographing. A control circuit switches modes between a first mode in which the image area is set into a light transmitting state and a second mode in which the image area is set into a light shielding state according to a voltage applied to the liquid crystal element. The index areas always provide index display irrespective of application of the voltage to the liquid crystal element.
摘要:
An electrical system apparatus is constructed as follows to easily attain the desired adjustment, repair and change for the version of a stored program on the user side even if a microcomputer containing a rewritable or unrewritable memory is used. That is, the electrical system apparatus includes a one-chip microcomputer containing a memory which is divided into a plurality of blocks and includes one specified block n set in a preset block of the memory for storing a control program for realizing a preset function or specification of the system apparatus, a specified block rewriting program stored in at lest one of the blocks 1 to (n-1) other than the specified block to rewrite the content of the specified block, and a communicating section accessible to the memory and having a serial communicating function, and the rewriting program permits data transmitted from an external device and received by the communicating section to be written into the specified block n.
摘要:
A stroboscopic instrument is constructed of a gate-controlled switching element forming a discharge loop that is connected in series with a discharge lamp and main capacitor for storing charge that causes the discharge lamp to flash. The stroboscopic instrument further comprises: a stroboscopic flashing control circuit for controlling the operation of stroboscopic flashing; a low-voltage power supply that has an output voltage lower than the driving voltages of the stroboscopic flashing control circuit and the gate-controlled switching element; a first constant voltage regulator for stepping up the voltage of the low-voltage power supply up to the driving voltage of the stroboscopic flashing control circuit; and a second constant voltage regulator for stepping up the voltage of the low-voltage power supply or the output voltage of the first constant voltage regulator up to the driving voltage of the gate-controlled switching element.
摘要:
A photosensitive resin composition comprising (a) 20 to 75 parts by weight of an urethane diacrylate or dimethacrylate compound obtained by reacting trimethylhexamethylene diisocyanate with an acrylic or methacrylic monoester of a dihydric alcohol, (b) 20 to 75 parts by weight of a linear polymeric compound having a glass transition temperature of about 40.degree. to 150.degree. C., (c) a sensitizer and/or a sensitizer system which generate free radicals owing to actinic light, and (d) an acrylic or methacrylic ester containing a phosphoric acid group in the molecule in an amount of 0.01 to 5% by weight based on the total weight of components (a) and (b) is excellent in heat resistance, resistance to thermal shock and solvent resistance, and is suitable for forming a soldering mask. Further, a photosensitive element produced by forming a layer of the above-mentioned composition on a support gives a protective coating film excellent in heat resistance, resistance to thermal shock and solvent resistance, and is particularly suitable for a soldering mask.
摘要:
A camera capable of white balance correction (WBC) of this invention has an image pickup optical system, an image sensor for receiving light from an object, a three-primary-color (3-color) detection section for detecting 3-color signals based on the image sensor output, a matrix processing section for calculating 2-color difference signals from the 3-color signals, a visible-light brightness detection section for detecting visible-light brightness by the output from the 3-color detection section or by a photometric section, an infrared-light detection section for detecting the lightness of infrared-light, and an artificial-light detection section for calculating the ratio of artificial light and natural-light. A correction range for performing the WBC is obtained based on the ratio of artificial-light and natural-light computed by the artificial-light detection section, and the WBC is performed when the 2-color difference signals are within the correction range.
摘要:
A battery check device for a camera which includes a discharging circuit to which current flows from a battery and a discharging time setting device for setting a discharging time for determining that an internal resistance of the battery has increased due to non-use of the battery so as to temporarily reduce an output voltage of the battery. The discharging time set by the discharging time setting device is longer than a time required to check the residual energy amount of the battery. A determining device determines whether a voltage of the discharging circuit has reached a reference voltage specific to the battery within the discharging time. It is determined that the residual energy amount of the battery is sufficient and that the internal resistance of the battery has merely increased due to non-use of the battery when the determining device determines that the voltage of the discharging circuit has reached the reference voltage specific to the battery within the discharging time but after the time required to check the residual energy amount of the battery. And it is determined that the residual energy amount of the battery is insufficient when the determining device determines that the voltage of the discharging circuit has not reached the reference voltage specific to the battery within the discharging time.