Fujifilm Corporation

Fuji Photo Optical Co., Ltd.

Fujinon Corporation

Kazuya Yoneyama

Kazumi Koike

Michio Cho

Yoshikazu Shinohara

Chikara Yamamoto

Takayuki Noda

Yoshiaki Ishii

Yasuyuki Miyata

Kenichi Sato

Fumio Watanabe

Yasunobu Kishine

Hiroyuki Oshima

Toshihiro Aoi

Ryoko Tomioka

Minoru Taniyama

Kimiaki Nakazawa

Tatsuyuki Ogino

A projection type display device includes: a first light source that emits visible light; a projection receiving member which is disposed on a windshield of a vehicle, to which an image based on the visible light is projected; a second light source that emits ultraviolet light which decreases a light transmittance of the projection receiving member by irradiation of the projection receiving member; a projection unit that projects the visible light emitted from the first light source and the ultraviolet light emitted from the second light source to the projection receiving member; an imaging unit that performs imaging of a scene at front of the windshield of the vehicle; and a detection unit that detects an object image having brightness greater than or equal to a first threshold as defined herein, and the projection unit projects the ultraviolet light as defined herein.

Projection type display device and projection display method

A projection display device mounted in a vehicle includes a light modulation unit that spatially modulates, in accordance with image data that has been input, light emitted by a light source; a projection optical system that projects the light that has been spatially modulated onto a projection surface of the vehicle; and an image data control unitthat controls image data to be input to the light modulation unit. The image data control unitperforms, in a first mode in which driving is performed in accordance with an internally generated instruction or an externally and wirelessly received instruction, control to switch between projection of image light for normal display onto the projection surfaceand projection of image light for warning display onto the projection surface

Projection display device, projection display method, and projection display program

A dome-type camera includes a dome cover () and a camera unit (). The dome cover () has a front surface () and a back surface (). The camera unit () includes an optical system () and an imaging element (). The optical system () is disposed on the back surface () side of the dome cover (), and the imaging element () outputs image data on the basis of imaging light received via the optical system (). At least the back surface () out of the front surface () and the back surface () of the dome cover () has at least an aspheric shape in which optical properties are continuously changed at a location other than a top t of the dome cover ().

Dome-type camera and dome cover

An imaging lens is constituted by six lenses, including, in order from the object side to the image side: a positive first lens having a convex surface toward the object side; a negative second lens; a positive third lens, which is a meniscus lens having a convex surface toward the object side; a positive fourth lens; a negative fifth lens having a concave surface toward the object side; and a negative sixth lens, of which the image toward the image side is of an aspherical shape which is concave in the vicinity of the optical axis and convex at the peripheral portion thereof. Conditional formulae related to the focal length f of the entire lens system, the focal length fof the first lens, and the focal length fof the fourth lens is satisfied.

Imaging lens and imaging apparatus equipped with the imaging lens

An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a biconvex shape, a second lens that has a negative refractive power, a third lens, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

Imaging lens and imaging apparatus including the imaging lens

An imaging lens substantially consists of five lenses consisting of, in order from the object side: a first lens having a positive refractive power with a convex surface toward the object side; a second lens having a negative refractive power and having a meniscus shape with a convex surface toward the image side; a third lens having a positive refractive power and having a meniscus shape with a convex surface toward the image side; a fourth lens having a positive refractive power and having a meniscus shape with a convex surface toward the image side; and a fifth lens having a negative refractive power, wherein an image-side surface of the fifth lens includes a concave surface and at least one inflection point, wherein a predetermined conditional expression is satisfied.

Imaging lens and imaging device provided with the same

An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side, a second lens that has a negative refractive power, a third lens that has a negative refractive power, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

An imaging lens substantially consists of, in order from an object side, five lenses of a first lens that has a positive refractive power and is convex toward the object side, a second lens that has a negative refractive power, a third lens, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

An imaging lens substantially consists, in order from an object side, five lenses of a first lens that has a positive refractive power and has a meniscus shape which is convex toward the object side, a second lens that has a negative refractive power, a third lens that has a negative refractive power, a fourth lens that has a positive refractive power, and a fifth lens that has a negative refractive power and has an object side surface and an image side surface which have aspheric shapes. Further, the imaging lens satisfies predetermined conditional expressions.

An imaging lens is constituted by: a first lens having a positive refractive power and is of a meniscus shape with a convex surface toward the object side; a second lens having a negative refractive power; a third lens having a positive refractive power and a convex surface toward the object side; a fourth lens having a positive refractive power and a convex surface toward the object side; and a fifth lens having a negative refractive power, a concave surface toward the image side on the surface thereof toward the image side in the vicinity of the optical axis, and an inflection point on the surface thereof toward the image side, provided in this order from the object side.

An imaging device with a short length and small aberration is provided. A total length D of an image-forming optical system is less than 3.6 mm. A maximum incidence angle of a principle ray on an image forming plane exceeds 33&#xb0;. Conditions f/fL&#x3c;&#x2212;1.50 or f/fL&#x3c;&#x2212;0.9, and D/f&#x3c;1.10 are satisfied where f denotes a focal length of the entire image-forming optical system and fL denotes a focal length of a last lens.

Imaging device and mobile information terminal

An imaging system is provided and includes an imaging lens and an imaging device such that the maximum diameter of an effective region of a point image becomes a size covering three or more pixels of light receiving pixels, the point image being projected onto a light receiving surface through the imaging lens from any position of X, Y, and Z directions. A signal processing unit in the imaging system executes restoration processing on first image data output from the imaging device that images an optical image of a subject projected onto the light receiving surface through the imaging lens, the restoration processing being executed to generate second image data equivalent to the first image data output from the imaging device when the resolving power of the imaging lens is higher.

Imaging system using restoration processing, imaging apparatus, portable terminal apparatus, onboard apparatus and medical apparatus having the imaging system

An imaging system is provided and includes: an imaging lens; an imaging device; a coefficient storage section; and a signal processing section. When a maximum diameter of an effective region of a point image projected onto a light receiving surface of the imaging device through the imaging lensis a size covering three or more pixels, a restoration coefficient corresponding to a state of the point image expressed by first image data output from the imaging device is stored in the coefficient storage unit. The signal processing section executes restoration processing on the first image data output from the imaging device by utilizing the restoration coefficient stored in the coefficient storage unit, the restoration processing being executed to generate second image data equivalent to the first image data output from the imaging device when the resolving power of the imaging lens is higher. The imaging lens has a first lens group, which includes at least one lens and has a positive power, and a second lens group, which includes at least one lens and in which a lens positioned closest to the image side has a negative power, in order from the object side.

Growing community of inventors

Saitama, Japan

Kazuya Yoneyama