50results about How to "Shorten the projection distance" patented technology

A projection type image display apparatus in which shortening of the projection distance (widening of the angle of view) and miniaturization of the projection optic system are realized is provided. It comprises, in a traveling direction of the light, an image display element, a lens group including a plurality of lenses, a first lens, a second lens, and a mirror to reflect light emitted from the second lens to be projected obliquely on a screen in this order. The refractive power of the first lens is positive and the refractive power of the second lens is negative. The first and the second lenses are moved in an interlocked relationship with each other along an optical axis of the lens group and a movement amount of the first lens is made larger than a movement amount of the second lens.

A vehicle-side connector (C) to which a charging connector is to be connected includes a housing (20) capable of accommodating vehicle-side terminal fittings (11) fixed to ends of wires (10) drawn out from a battery in a vehicle. A connector fitting portion (25) is provided in a front part of the housing (20), and the charging connector can fit therein so that terminal connecting portions (13) of the vehicle-side terminal fittings (11) are electrically connectable to the charging connector. A terminal accommodating portion (30) is provided in a rear part of the housing (20) and is capable of accommodating parts of the vehicle-side terminal fittings (11) behind the terminal connecting portions (13), The terminal accommodating portion (30) is formed with a first draw-out opening (32) through which the wires (10) can be drawn backward and a second draw-out opening (33) through which the wires (10) can be drawn out laterally.

A projection lens of the retrofocus type which has a long back focus, can project with a high contrast, exhibits small aberrations such as a distortion aberration and converts a light path in the inside thereof. A first lens set (0) having a negative refractive power and having light path conversion means built therein, an iris (400) and a second lens set (300) having a positive refractive power and including an aspheric lens are disposed in order from the screen side. The first lens set (0) includes a first A lens set (100) having a negative refractive power and including one or more aspheric lenses, a bending mirror (M) serving as the light path conversion means, and a first B lens set (200) having a positive refractive power. The lenses in the first A lens set have an outer shape with a portion thereof cut outside an effective light ray in a direction of the light path conversion, and the direction of the light path conversion is a direction of a shorter side of the rectangular image formation element. Where the focal length of the entire system is represented by FL, the back focus by FB, the front side focal position of the second lens set by FFP2, the distance between the iris and the second lens set by Dst, and the air converted distance on the optical axis between the first lens set and the second lens set by D2, conditional expressions [FB / FL>2.2], [0.59<|FFP2 / Dst|<0.96] and [3.75 G02B 13 / 04 G02B 13 / 18 G02B 13 / 22 25 24 0 2002 / 8 / 28 1549945 2004 / 11 / 24 1278160 2006 / 10 / 4 2006 / 10 / 4 2006 / 10 / 4 Sony Corp. Japan Sugano Yasuyuki li deshan 11038 The Patent Agency of the Chinese Council for the Promotion of International Trade (CCPIT) No.1 Waidajie, Fuxingmen, Beijing 100086 Japan 2001 / 8 / 28 258080 / 2001 2004 / 2 / 27 PCT / JP2002 / 008657 2002 / 8 / 28 WO2003 / 021326 2003 / 3 / 13 Japanese

A connection component for mounting a chip or other microelectronic element is formed from a starting unit including posts projecting from a dielectric element by crushing or otherwise reducing the height of at least some of the posts.