摘要:
A distance measuring apparatus includes: a number of simple lenses in substantially the same shape, on which light that has come from the object of range finding is incident; and an image capturing section, which has a number of image capturing areas and which captures the images of the object of range finding that have been produced by the respective simple lenses on their associated image capturing areas. The lens surfaces of each lens that are opposed to the object of range finding and the image capturing section, respectively, are only aspheric refracting surfaces. In each of the simple lenses, the paraxial radii of curvature R1 and R2 of the lens surfaces that are opposed to the object of range finding and the image capturing section, respectively, and its focus length f satisfy the condition −2.4≦f(1/R1+1/R2)≦−0.6.
摘要:
An imaging apparatus of the present invention includes: a lens optical system including a lens and a stop; an imaging device including at least a plurality of first pixels and a plurality of second pixels on which light having passed through the lens optical system is incident; and an arrayed optical device arranged between the lens optical system and the imaging device, wherein: the lens optical system includes, in a plane vertical to an optical axis, a first optical area that transmits therethrough light of a first wavelength band and a second optical area that transmits therethrough light of a second wavelength band different from the first wavelength band; and the arrayed optical device makes light having passed through the first optical area incident on the plurality of first pixels and light having passed through the second optical area incident on the plurality of second pixels.
摘要:
To provide highly accurate calibration method or the like for use with a distance measuring device which provides captured images with significant lens aberration.The calibration method is intended to estimate a camera parameter representing a characteristic of each of imaging systems of a distance measuring device (3), and includes: capturing, using the distance measuring device, an image of a reference chart (30) which (i) represents a geometric pattern in which elements are arranged and (ii) is positioned to have a predetermined positional relationship with the distance measuring device (3); modifying a luminance distribution affected by aberration of the lens in the captured image of the reference chart (30); calculating, as a feature point position, a gravity center position of each element in the captured image whose luminance distribution is modified; and estimating the camera parameter using the feature point position calculated in the calculating and an approximate actual gravity center position in the reference chart (30).
摘要:
An image reader A1 according to the present invention comprises a pair of light source devices 3, a light guide member 4, a first and a second reflectors 7A and 7B, a plurality of light receiving elements 5, and a case 1. The image reader A1 further includes a first fitting contrivance 71 for positioning the first reflector 7A relative to the case 1 by inserting the first reflector 7A into the case 1 in the insertion direction z, a second fitting contrivance 72 for positioning the light guide member 4 relative to the case 1 by inserting the light guide member 4 into the case 1 in the insertion direction z, and a third fitting contrivance 73 for positioning the second reflector 7B relative to the case 1 by inserting the second reflector 7B into the case 1 in the insertion direction z.
摘要:
An image pickup apparatus includes: a lens optical system including six regions having such optical characteristics that focal characteristics are made different from one another; an image pickup device having a plurality of pixels on which light beams having passed through the lens optical system are incident; and an arrayed optical device for making light beams having passed through the six regions incident respectively on different pixels on the image pickup device.
摘要:
A distance measuring apparatus of the present invention is a distance measuring apparatus for determining a distance to an object, comprising: a plurality of optical systems for forming images of the object; and an image capturing section (N) having a plurality of image capturing areas which are associated with the plurality of optical systems on a one-to-one basis, the image capturing section (N) being configured to convert images of the object formed in respective ones of the image capturing areas through the plurality of optical systems to electric signals, the distance to the object being determined based on a parallax between the images of the object formed through the plurality of optical systems, wherein each of the plurality of optical systems includes n lens surfaces (r1, r2), where n is an integer not less than 2, and a direction of a decentration between an ith lens surface (r1) and a jth lens surface (r2) (counting from the object side) is identical among at least one pair of the plurality of optical systems, where i and j are different integers each of which is not less than 1 and not more than n.
摘要:
An image pickup apparatus includes: a lens optical system including six regions having such optical characteristics that focal characteristics are made different from one another; an image pickup device having a plurality of pixels on which light beams having passed through the lens optical system are incident; and an arrayed optical device for making light beams having passed through the six regions incident respectively on different pixels on the image pickup device.
摘要:
A pattern projection light source is disclosed in which a light source (2a); a plurality of mask regions (5) in each of which a light-transmitting portion that transmits light from the light source therethrough is formed in a predetermined pattern; and a plurality of lenses (7) that each form an image of the predetermined pattern of the light-transmitting portion at a predetermined distance are arranged in this order. Since the pattern projection light source includes a plurality of projection optical systems each including a mask region and a lens, a compact and thin pattern projection light source can be realized. Moreover, provision of a plurality of lenses makes it possible to increase the imaging range of a pattern image. Furthermore, an image of the pattern of the light-transmitting portion can be formed clearly on the object.
摘要:
An imaging apparatus according to the present invention includes a lens optical system L, an imaging device N at least having a plurality of first and second pixels P1 and P2, an array optical device K, and a signal processing section C for generating an image. The lens optical system L has an optical region D1 and an optical region D2; the array optical device K causes light passing through the optical regions D1 and D2 to respective enter the plurality of first and second pixels P1 and P2; and a proportion of an amount of light exiting the optical region D2 relative to an amount of light entering the optical region D2 is smaller than a proportion of an amount of light exiting the optical region D1 relative to an amount of light entering the optical region D1.
摘要:
An imaging device according to the present invention includes: image side non-telecentric imaging optics including a first lens 1, a second lens 2 which is entered by light having traveled through the first lens 1, and an imaging element 4 having an imaging plane 4i for detecting light having traveled through the second lens 2; a position changing section (a cam mechanism 6 and a motor 8) for, during an exposure time, respectively changing a first distance between the first lens 1 and the second lens 2 and a second distance between the second lens 2 and the imaging element 4; and a signal processing section 9 for generating an image by using an electrical signal which is output from the imaging element 4. The imaging element 4 converts light reaching the imaging plane 4i during the exposure time, during which the first distance and the second distance are changing, into an electrical signal.