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Matches 551 - 600 out of 4,065

Document Document Title
JP4453893B2  
JP4450296B2  
JP4437589B2  
JP4417700B2  
JP4416411B2  
JP4409242B2
A single focus lens includes, in order from the object side: a diaphragm stop; and first and second lens components, each lens component being of positive refractive power and each having a convex surface on the object side at least near...  
JP4404591B2  
JP4403672B2  
JP4401802B2  
JP2010002930A
To further reduce the size and to suppress fluctuation of imaging point position by temperature change in a plastic lens.The image pickup lens includes a first lens, a second lens, a third lens and a fourth lens arranged in order from an...  
JP4387704B2  
JP4391026B2
A double-wavelength aperture restricting filter has a zonal part adapted to act such that one wavelength lambd1 of light keeps the quantity of light in an outer peripheral part of the luminous flux thereof whereas the other wavelength la...  
JP4385549B2  
JP4371468B2  
JP4366063B2
A zoom lens system comprises a 1st lens unit with positive optical power consisting of one lens element, a 2nd lens unit with negative optical power, a 3rd lens unit with positive optical power and a 4th lens unit with positive optical p...  
JP4365922B2  
JP4366086B2  
JP4336406B2  
JP4312596B2
Simple, inexpensive and durable multi-element lens systems are provided. These lens systems may be optically coupled to digital image-capturing devices, such as those used in digital cameras. Some lens systems of the present invention in...  
JP4305790B2
A bright image readout lens having a wider angle of view comprises, successively from the object side, a first lens L1 made of a positive meniscus lens having a convex surface directed onto the object side, a second lens L2 made of a bic...  
JP2009134305A
To provide a multi-element lens systems which is simple and inexpensive and has durability.The lens system includes a glass microsphere (105) bonded to a planar surface of a glass hemisphere (205). In preferred lens systems, the thicknes...  
JP4274602B2
An objective optical system is disclosed having, in a first construction, in relative order from the object side, a first lens element of negative refractive power, a visual field conversion optical element which folds light rays inciden...  
JP4269334B2
An image pickup lens that has therein, in the order named from an object side, an aperture stop, a meniscus-shaped first lens (L1) having positive refracting power whose convex surface faces an object and a second lens (L2) having positi...  
JP4268323B2  
JP4262320B2
In an image readout lens comprising four lens elements having positive, negative, negative, and positive refracting powers, respectively, the glass material for at least one of the second and third lenses is defined in terms of relative ...  
JP4262986B2
An optical scanning device for scanning an information layer ( 104 ) of an optical record carrier ( 102 ) includes a radiation source ( 110 ) for generating a radiation beam ( 108 ) and a high-NA objective system ( 118 ) for converging t...  
JP2009098515A
To attain reduction in a full length as well as maintaining a high imaging performance using an aspherical surface.The imaging lens includes a positive first lens L1 in which an object side face is a convex near the optical axis, a negat...  
JP2009098183A
To provide an imaging lens which is short in focal length as a whole, is composed of two lenses thin in center thickness, and is small in size and excellent in optical characteristics.The imaging lens includes, in order from an object si...  
JP2009098516A
To materialize a lens system having excellent manufacturing optimization while reduction in a full length is attained and a high imaging performance is maintained using an aspherical surface.The imaging lens includes a positive first len...  
JP2009098322A
To maintain satisfactory optical performance even though a small-sized and low-cost imaging lens.The imaging lens includes, in order from the object side: a first lens L1 of negative refractive power, the concave face of which is oriente...  
JP2009075315A
To provide a compact wide-angle lens having good optical-performance, whose viewing angle is not less than 90 and less than 120.Regarding the wide angle lens whose viewing angle is not less than 90 and less than 120, the wide angle lens ...  
JP2009063942A
To provide a far-infrared camera lens which is mounted on a vehicle, is small and inexpensive, and has a wide angle of view of 50 to 70 and to provide a lens unit and an imaging apparatus which use this lens.Three lenses formed of ZnS ar...  
JP2009063941A
To provide a far-infrared camera lens which is for a vehicle, small and inexpensive, and has a back focus of 6 mm or more and to provide a lens unit and an imaging apparatus which use the lens unit.The far-infrared camera lens includes t...  
JP4239248B2  
JP4233062B2
Successively from an object side, a stop, a biconvex lens, a biconcave lens, a biconvex lens, and a meniscus lens having a convex surface directed onto the image side are disposed, while the image-side surfaces of the second and third le...  
JP4223936B2
In a projection optical system for use in an image projection apparatus illuminating an image display panel forming an image in accordance with a modulating signal with illumination light from a light source, the projection optical syste...  
JP4219645B2
An exposing apparatus for a microlens array allows for easy alignment and attains high accuracy. An exposing method for a microlens array attains high accuracy and high light efficiency. The exposing apparatus for a microlens array inclu...  
JP4207248B2  
JP2008309988A
To obtain a wide-angle projection lens having high projection performance while securing a long back focus, and also, capable of using an inexpensive light reflection mirror as an optical path bending component, and whose manufacturing c...  
JP2008309990A
To obtain a wide-angle projection lens having high projection performance while securing a long back focus, capable of using an inexpensive light reflection mirror as an optical path bending component, and whose manufacturing cost is red...  
JP2008309989A
To obtain a wide-angle projection lens having high projection performance while securing a long back focus, and also, capable of using an inexpensive light reflection mirror as an optical path bending component, and whose manufacturing c...  
JP4197994B2
An image-taking apparatus has an image sensor for converting an optical image into an electrical signal, and a taking lens system for forming the optical image on the light-receiving surface of the image sensor. The most object-side surf...  
JP2008292651A
To provide an imaging lens which is compact, has excellent optical characteristics and comprises two lenses.The imaging lens comprises, in order from an object side to an image surface side, an aperture S1, a meniscus first lens L1 which...  
JP2008292965A
To reduce the number of components and thereby to reduce cost of an optical device, which is composed of a collimator lens for converting light emitted from an optical fiber to collimated light, a line condenser lens for condensing only ...  
JP4188920B2
The universal input device provides a common user interface for a variety of different computing platforms including printed documents. Using the present system, one may use the universal input device to control various computing devices...  
JP4189754B2
A zoom lens which can be formed with a reduced overall length while physically necessary factors including a long back focus for allowing arrangement of a color separating prism therein and a telecentric property and besides can correct ...  
JP2008287045A
To provide a compact imaging lens which holds a good optical performance and which has a small F value.The imaging lens 1 includes successively from its object side, a first lens group G1 including a biconcave single lens, a second lens ...  
JP2008275832A
To provide an imaging lens whose depth of focus is deep and whose error sensitivity is low.The imaging lens satisfies conditional expression 0.016/f0.018, and is equipped with a first lens L1, a second lens L2 and a third lens L3 arrange...  
JP2008275783A
To provide an image reading lens composed of four groups-four pieces lenses, the image reading lens being small-sized and having high image reading performance.The image reading lens comprises, in order from the object side: a first lens...  
JP2008275678A
To solve the problem that reduction in optical coupling loss generated in a spatial optical system including a single lens is not sufficient, a lens excellent in performance is difficult to manufacture and expensive, adjustment work when...  

Matches 551 - 600 out of 4,065