Abstract: An input device for constructing an inputting operation unit for various electronic apparatus and a method of manufacturing the input device are provided. The input device allows push-down inputting operation and position inputting operation using the same operating unit. The input device has a position input sensor provided under a key, and a base sheet having a movable contact joined to its bottom face depending on the location where the key is disposed, and a columnar section is disposed in a manner sandwiched between the position input sensor and the base sheet at the center of the movable contact.

Abstract: A method for controlling an input portion of electronic devices enables the input portion capable of both a coordinate input operation and a pressure input operation to be easy-to-use. The input portion, which includes an operation panel, a coordinate input section disposed thereunder, and a pressure input section disposed thereunder, is connected to a controller so as to form an input device. In the coordinate input operation, the user runs a finger across the operation panel, and in the pressure input operation, the user presses a predetermined position. In the method, the distinction between the two input operations is performed by detecting the shape of the contact part of the finger in contact with the surface of the input portion based on the signal obtained from the coordinate input section and by using the detected result and predetermined criteria. The controller outputs the signal corresponding to the determination.

Abstract: This lens unit includes lens barrel (7) with through hole (6), first lens (8a) press-fitted into through-hole (6), first step (9a) catching an outer edge of first lens (8a) in through-hole (6), second lens (8b) press-fitted into through-hole (6) in a direction of an optical axis of first lens (8a), and second step (9b) catching an outer edge of second lens (8b) in through-hole (6). Second lens (8b) has a diameter larger than that of first lens (8a). Third step (10a) or a sloped portion broadening through hole from the first lens to the second lens is further provided.

Abstract: An input device includes an input detection portion which enables detection of position inputs according to change of capacitance; a position detection portion which reads detection signals from the input detection portion and detects positions thereof; a light emitting portion placed near the input detecting portion; driving portion which drives the light emitting portion; a monitoring portion which monitors a driving voltage applied from the driving portion to the light emitting portion; and a control portion which controls a generation of pulse signals at times when the position detection portion reads the position inputs from the input detection portion, the generation of the times being based on the driving voltage monitored by the monitoring portion.

Abstract: An input device includes an input section formed of a display sheet and a coordinate input sheet, and a switch section allowing a push-input and placed on a substrate at a place corresponding to a display section of the display sheet. A foamed layer containing air and working as an insulating resin layer is placed between the input section and the substrate. The input section is supported via the foamed layer.

Abstract: A method for manufacturing an optical waveguide of the present invention is one in which a mask is provided on the surface of a core layer followed by performing dry etching, and the dry etching step includes etching and ashing steps. With this, the irregularities formed on the periphery of a core pattern during manufacture of an optical waveguide can be eliminated, and an optical waveguide with a low optical transmission loss is proved.

Abstract: An optical filter module of the present invention has a flat substrate, an optical path formed on the flat substrate; a filter insertion groove provided, crossing the optical path, on the flat substrate; a multilayer filter inserted, dividing the optical path, into the filter insertion groove; and a pair of covers disposed on the flat substrate so as to sandwich the multilayer filter. The present invention enables the omission of the process of adjustment of the optical axis, thus achieving high operability. At the same time, the present invention ensures fixing and mounting of the multilayer filter even if the multilayer filter is warped.

Abstract: The object of the present invention is to provide a lens unit with first lens (2) and second lens (3) housed in holder (1) which may improve the aberration. It comprises cylindrical holder (1), first lens (2) and second lens (3) housed in holder (1). First lens (2) is cylindrical having a top that functions as lens (2a), and second lens (3) is pressed into cylindrical portion (2b) of first lens (2) having a top in such manner that the inner periphery of cylindrical portion (2b) of first lens (2) is pressed by the outer periphery of second lens (3).

Abstract: An optical waveguide includes a first cladding layer made of glass material, a core made of glass material on the first cladding layer, and a second cladding layer covering the core and made of glass material including at least one of alkali element, alkali-earth element, and rare-earth element. The first cladding layer has a first softening temperature and a first refraction index. The core has a second refraction index larger than the first refraction index. The second cladding layer has a second softening temperature lower than the first softening temperature, and has a third refraction index smaller than the second refraction index. The optical waveguide is manufactured at high productivity since the second cladding layer does not deform.

Abstract: An optical component for optical communication having a smaller size and a shorter height. The optical component involves concave package 13 provided by layering ceramic substrates 131, groove section 19 formed at a bottom face of this package 13, optical semiconductor element 20 provided in this groove section 19, cover 12 provided to cover an opening section of package 13 and lens 11 formed at cover 12.

Abstract: The method for manufacturing an optical waveguide of the present invention is one in which a mask is provided on the surface of a core layer followed by performing dry etching, and the dry etching step includes etching and ashing steps. With this, the irregularities formed on the periphery of a core pattern during manufacture of an optical waveguide can be eliminated and an optical waveguide with a low optical transmission loss is proved.

Abstract: An optical filter module of the present invention has a flat substrate, an optical path formed on the flat substrate; a filter insertion groove provided, crossing the optical path, on the flat substrate; a multilayer filter inserted, dividing the optical path, into the filter insertion groove; and a pair of covers disposed on the flat substrate so as to sandwich the multilayer filter. The present invention enables the omission of the process of adjustment of the optical axis, thus achieving high operability. At the same time, the present invention ensures fixing and mounting of the multilayer filter even if the multilayer filter is warped.