摘要:
A relationship between a rim shape and a position of a mounting hole is obtained based on a detection signal from the second position detector (40) by controlling a measuring element shifter (6) to move the leading end of a measuring element for a lens (36) to have contact with an refracting face of the lens (Lm) held in the lens holder.
摘要:
A lens holder includes a lens holding member having a mounting shaft portion and is configured to hold a lens provided with at least one hole mounting a fitting for a rimless frame or a dummy lens provided with at least one hole, a main body including an opened bottom surface, a shaft holding cylinder provided in the main body and configured to hold the mounting shaft portion of the lens holding member, a clamping member configured to clamp the shaft holding cylinder to the mounting shaft portion of the lens holding member, and at least one confirming hole provided in the main body. When the shaft holding cylinder is clamped to the mounting shaft portion of the lens holding member by the clamping member, the confirming hole is configured to allow the hole of the lens or the dummy lens to be viewed.
摘要:
First bearing position 22 and second bearing position 23 are formed on bearing member 14 that supports rotational shaft 32 of driving conveyance roller 12 while being subjected to pressure from bearing spring 15. Normally, rotational shaft 32 is supported by first bearing position 22, and driving conveyance roller 12 is kept in pressure contact with the driven conveyance roller via the force from bearing spring 15. Conveyance of sheets is performed in this state. When the apparatus is stopped due to a paper jam and the user pulls out the jammed sheet, the force of the pulling causes rotational shaft 32 to detach from first bearing position 22 and move to second bearing position 23 and driving conveyance roller 12 loses pressure contact with the driven conveyance roller. Therefore, the sheet may be easily pulled out, and the apparatus may be reset for continued use.
摘要:
A spectacle lens frame shape measuring apparatus includes a holding device including upper pins and lower pins respectively holding upper rims and lower rims of frames for a spectacle lens, the upper pins holding the frames at different positions in a right-left direction from the positions at which the lower pins hold the frames and being placed at a same height as the lower pins in a vertical direction, a probe brought into contact with lens fitting grooves of the frames held by the holding device, a swinging mechanism swinging the holding device around a predetermined virtual axis, and a calculation controller calculating an axial shift amount or angle of the frames held by the holding device on the basis of a carved angle of the frames and an inclination angle of any one of the upper and lower rims, and correcting a shape of the frames obtained by the probe in accordance with the calculated axial shift amount or angle.
摘要:
A lens holder includes a lens holding member having a mounting shaft portion and configured to hold a lens provided with at least one hole mounting a fitting for a rimless frame or a dummy lens provided with at least one hole, a main body including an opened bottom surface, a shaft holding cylinder provided in the main body and configured to hold the mounting shaft portion of the lens holding member, a clamping member configured to clamp the shaft holding cylinder to the mounting shaft portion of the lens holding member, and at least one confirming hole provided in the main body. When the shaft holding cylinder is clamped to the mounting shaft portion of the lens holding member by the clamping member, the confirming hole is configured to look at the hole of the lens or the dummy lens.
摘要:
A magnetic tape reproducing apparatus and method is capable of reliably detecting the leading edge of a program to be reproduced without any malfunction even at the time of a high-speed search. During a 200-times normal speed high-speed search in the reproducing direction of a magnetic tape derived from the drive of a feed reel 14 and a take-up reel 15, a microcomputer 27 applies a brake to both reels in response to the detection of a start ID by a rotary head 11. From this detection of the start ID until the stop of the tape, reel pulses input from sensors 16 and 17 (from the rotation of the reels) are counted. After the tape comes to rest, the tape is compulsority rewound at a lower speed (10-times speed) dependent on the counted number of the pulses. After the completion of the compulsory rewinding, a 10-times speed rewinding follows with the lead edge of the start ID being detected, thereby eliminating an unstable contact condition which may be produced between the rotary head 11 and the magnetic tape 12 immediately after the stoppage of the tape, and presenting a more accurate detection of the start ID.
摘要:
An arithmetic control circuit (52) is configured to bring the measuring element (38) for a lens into contact with at least two points (measurement points P1, P2) of one of two refracting surfaces of the lens Lm held in the lens holder by controlling the measuring element shifter (driving motor 6), obtain the coordinates of the two points according to the detection signal from the position detector (linear scales 24, 40), and obtain a curve value Cv of one refracting surface of the lens from the difference of the coordinates of the two points.
摘要:
An arithmetic control circuit (52) is configured to bring the measuring element (38) for a lens into contact with at least two points (measurement points P1, P2) of one of two refracting surfaces of the lens Lm held in the lens holder by controlling the measuring element shifter (driving motor 6), obtain the coordinates of the two points according to the detection signal from the position detector (linear scales 24, 40), and obtain a curve value Cv of one refracting surface of the lens from the difference of the coordinates of the two points.
摘要:
A developing device having a toner carrying member for transporting toner to a photosensitive member, a toner supplying member facing to the toner carrying member with an opening therebetween for supplying toner to the toner carrying member and a seal member for substantially closing a toner path. In the developing device a scraping member is further provided in contact with the toner supplying member to scrape the toner therefrom and an accommodating space is formed by the toner carrying member, toner supplying member, seal member and scraping member. Thus the toner transported by the toner supplying member is accommodated in the accommodating space and then supplied to the toner holding member under pressure accompanied by the increase of the toner accommodated therein, whereby an adequate quantity of toner is supplied for development.
摘要:
A relationship between a rim shape and a position of a mounting hole is obtained based on a detection signal from the second position detector (40) by controlling a measuring element shifter (6) to move the leading end of a measuring element for a lens (36) to have contact with an refracting face of the lens (Lm) held in the lens holder.