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Matches 501 - 550 out of 4,064

Document Document Title
JP5175042B2
A thin projection type image display device with a low chin height includes a cabinet, a screen, a projection optical system, an optical path changing unit, and a reflecting unit. The screen is disposed on a front side of the cabinet. Th...  
JPWO2010116862A
[Subject] It can constitute from a single lens and provides a collimate lens with the good chromatic aberration characteristic. [Means for Solution] It is a collimate lens which makes parallel light light from a laser device used for a l...  
JPWO2010116862A1
【課題】単レンズで構成でき色収差特性の良 好なコリメートレンズを提供する。【解決手 段】レーザーディスプレイ装置に用いるレー ザー装置からの光を平行光とするコリメ...  
JP5034419B2  
JP2012181547A
To provide a projection lens having a short projection distance, an optical engine, and a rear projection display device which can output an image at least at a half field angle of 45° and are free from image distortion substantially to...  
JP5029097B2  
JP2011519682A5  
JP4947580B2  
JP4940870B2  
JP4935235B2  
JP4938922B2  
JP4932105B2  
JP4924141B2
An image pickup lens includes, in order from an object side thereof: a aperture stop; a first lens having a positive refractive power; a second lens having a negative refractive power; a third lens having a positive refractive power; and...  
JP4831967B2
An optical system includes multiple cubic crystalline optical elements and one or more uniaxial birefringent elements in which the crystal lattices of the cubic crystalline optical elements are oriented with respect to each other to redu...  
JP4817076B2
A method of manufacturing a diffractive optical element comprises providing a first optical element component 13 comprising a surface on which a relief pattern 20 for generating a desired diffraction effect is formed. A liquid material i...  
JP4812957B2
A wide-angle, single focus lens is disclosed that is formed of four lens elements of negative, positive, negative, and positive refractive power, in sequential order from the object side. The first lens element is concave on its object s...  
JP2011221109A
To suppress a decrease of a lens performance and light transmittance restraining a surface deterioration by ultraviolet radiation.A lens L2 in one embodiment of an optical element is composed of a thermoplastic resin including C-H bondin...  
JP4771031B2
A molded coupling lens, for use in an optical pickup apparatus, comprises: a first surface including a first optical surface, a second surface located opposite to the first surface and including a second optical surface, and a flat surfa...  
JP4734827B2  
JP2011519682A
An aspheric toric intraocular lens (IOL) having toricity and asphericity in a single lens. The toricity and asphericity may be provided on separate surfaces, such as an anterior surface and a posterior surface, or the toricity and aspher...  
JP4722087B2  
JP4712318B2  
JP4704915B2
A variable astigmatic focal beam spot is formed using lasers with an anamorphic beam delivery system. The variable astigmatic focal beam spot can be used for cutting applications, for example, to scribe semiconductor wafers such as light...  
JP4706787B2
An image pickup lens has four lenses arranged in an order of a first lens, a second lens, a third lens and a fourth lens from an object side. The first lens has positive refractive power and has a convex surface facing toward an object s...  
JP2011073064A
To form a variable astigmatic focal beam spot using an anamorphic beam irradiation system.The variable astigmatic focal beam spot can be used for cutting applications, for example, to scribe semiconductor wafers such as light emitting di...  
JP4658517B2  
JP4639635B2
The purpose is to provide a large-aperture-ratio internal focusing telephoto lens applicable to a wider photographing area by equipping a vibration reduction function capable to satisfactorily correct a camera shake and the like with sec...  
JP4628537B2  
JP4628781B2  
JP4623993B2  
JP4594130B2  
JP4587702B2  
JP4585796B2
Disclosed is a zoom lens system including in an order from an object side to an image side: a first lens unit having a negative refractive power; a second lens unit having a positive refractive power; and a third lens unit having a posit...  
JP4573941B2  
JP4571279B2  
JP4567366B2
An object is to provide an imaging lens system which can achieve reduction of the size and weight while maintaining the high optical performance. The imaging lens system of the present invention comprises, in order form an object side to...  
JP4561634B2  
JP4555074B2  
JP4552446B2  
JP4539651B2
An objective lens for at least one of recording and reproducing for an optical information recording medium includes in the order from a light source side: a first lens group having negative refracting power, which is in a meniscus shape...  
JP4518836B2
An imaging optical system includes an aperture stop, a positive first lens group, and a positive or negative second lens group. The first lens group includes a positive first lens element and a negative second lens element. The first len...  
JP4510402B2  
JP4510166B2  
JP4499370B2  
JP4491554B2
The invention is directed to an optical system for a fundus camera in which lens pairs are tilted relative to the imaging beam path to prevent flare. This tilting is carried out in two planes and these planes are preferably oriented perp...  
JP4488263B2
An ftheta lens comprises, successively from the luminous flux entrance side, a first lens made of a negative lens having a flat surface on one side, a positive second lens having a surface with a stronger curvature directed onto the imag...  
JP4481714B2
A wide-angle lens system includes a negative first lens group, a negative second lens group, and a positive third lens group. The negative first lens group includes at least two negative meniscus lens elements each having the convex surf...  
JP4466713B2  
JP4457666B2  
JP4453893B2  

Matches 501 - 550 out of 4,064