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JP3203542U |
To provide a head-mounted magnifying glass device. A hat-shaped main body, a battery case 20, a lamp 30, and a pivotal unit 40 are provided. The battery case 20 includes a housing groove 211, a pivot sliding groove 214, and a pivot hole ...
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JP5891618B2 |
To provide an eyepiece lens in which a relatively high magnification for observing a field of view is ensured while a diopter adjustment is enabled and a large pupil diameter is provided, and to provide a finder optical system having the...
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JP5890898B2 |
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JP2016035525A |
To provide a finder system that can prevent an increase in size in the height direction and increase the angle of field of a video that is observed together with a subject image and formed on a display element, and an optical instrument ...
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JP5886707B2 |
To provide an eyepiece optical system for a finder that obtains sufficient eye relief despite its thin, low design, and enables observation of an image whose aberrations are satisfactorily corrected even when an eye is moved vertically o...
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JP5871012B2 |
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JP5853622B2 |
To provide an eyepiece whose visibility can be adjusted and in which various aberrations such as a spherical aberration and a coma aberration are satisfactorily corrected.An eyepiece comprises, in the order from an observation object sid...
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JP5851157B2 |
An eyepiece lens system has satisfactory telecentricity on the object side and satisfactorily corrects aberration. An eyepiece lens system forms a magnified virtual image of an object to be observed, the system including a first group G1...
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JP5850065B2 |
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JP2016014795A |
To provide a finder optical system that comprises an electronic viewfinder using a liquid crystal display element or the like, which has a back focal distance that allows the arrangement of a display element and an eyepiece while enablin...
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JP2016001209A |
To provide an eyepiece capable of achieving a small-sized constitution, observation in high magnification, securement of telecentricity on the observation object side, and excellent correction of various aberrations; and to provide an im...
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JP2015232661A |
To provide a viewfinder for digital single-lens reflex cameras, which offers not only superior optical performance and greater observation magnification but also a long eye-point.A finder optical system for observing an object image form...
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JP2015534108A |
Optical systems, such as image display systems, include a free-form surface optical waveguide prism and a free-form surface compensating lens that is separated from it by a void or refractive index connector. The compensating lens correc...
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JP5823528B2 |
In order from the object side, a first lens having positive power with a convex observation-side surface, a second lens having negative power and a meniscus shape with a concave object-side surface, and a third lens having positive power...
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JP2015200686A |
To provide a magnifier for attaching to spectacles enabling visual inspection with the original function of spectacle lenses when attached thereto, for example, from a long distance or a short to moderate distance and visual inspection o...
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JP5809168B2 |
The view finder includes an observation optical system for enlarged observation of information displayed on a display section. The observation optical system includes an optical path bending member for bending the optical path. The view ...
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JP5805531B2 |
A volumetric display system including a volumetric display for displaying a scene viewable as a three-dimensional floating-in-the-air scene in a display space, enabling a user to reach a first object into the display space, a location de...
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JP2015169804A |
To provide a lens array that can improve visibility of an optical image to be formed irrespective of the shapes of lenses.A microlens array has a plurality of microlenses individually arranged on a plurality of lattice points (virtual po...
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JP2015169767A |
To provide a loupe that is light-weight, can obtain a sufficient field of view, and is mounted on spectacles without preventing a normal field of view even when not in use and without making a user get tired even in a case of being mount...
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JP5781165B2 |
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JP5775418B2 |
To provide a compact eyepiece lens system having excellent telecentricity on the image display element side, allowing excellent aberration correction, and having good operability.An eyepiece lens system that forms an enlarged virtual ima...
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JP5770292B2 |
A real-image variable-magnification viewfinder substantially consists of, in order from the object side: an objective lens system substantially consisting of a positive first lens, a negative second lens, a positive third lens, and a pos...
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JP5766799B2 |
A zoom viewfinder substantially consists of, in order from the object side: a variable-magnification objective lens system substantially consisting of a first lens group that includes a negative first-group first lens and a reflective me...
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JP5754159B2 |
To provide a virtual image display device that makes excellent see-through observation possible by suppressing an occurrence of image degradation such as a color shift of image light forming a virtual image.Since a refractive index of an...
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JP5745186B2 |
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JP5725971B2 |
To obtain a finder optical system that has a high observation magnification while maintaining a sufficient distance from a focusing plate to an eyepiece optical system.The finder optical system for observing an object image formed on a s...
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JP2015087581A |
To provide a display device which is easy to view.There is provide a display device including a light emission part, a reflection part, and a holding part. The light emission part emits a light flux including an image including a display...
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JP5714350B2 |
To provide a small sized finder optical system with great observation magnification.The finder optical system for observing an image formed by an object lens by an eye piece lens through an optical system for erect image formation has th...
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JP5712537B2 |
To provide a virtual image display device able to extract image light in a satisfactory state by preventing image deterioration due to uneven brightness while restraining a loss in a quantity of light.In an angle conversion part 23, an u...
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JP5710923B2 |
To provide a multifocal lens simulator and a method of simulating a multifocal lens, realizing and undergoing the effect of intraocular lens, a difference between the diffraction type and refraction type, or demerit even when not undergo...
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JP2015075713A |
To secure desired visibility while increasing the magnification of a magnifying glass.An eyepiece optical system includes: a first lens having a biconvex shape in an optical axis center and having positive refractive power; a second lens...
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JP2015075593A |
To provide an eyepiece lens that has a high observation magnification and is adjustable for a diopter.An eyepiece lens EL for the observation of an image formed by an objective lens via an erecting optical system is provided. The eyepiec...
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JP2015075591A |
To provide an eyepiece lens that has a high observation magnification and is adjustable for a diopter.An eyepiece lens EL for observation of an image formed by an objective lens via an erecting optical system is provided. The eyepiece le...
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JP2015075592A |
To provide an eyepiece lens that has a long eye relief and a high observation magnification and is adjustable for a diopter.An eyepiece lens EL for observation of an image formed by an objective lens via an erecting optical system is pro...
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JP3196638U |
To provide an underwater magnifying glass capable of clearly and easily observing an object to be observed in water and being able to be used as a magnifying glass on land without any trouble. A first convex lens 5 is fitted in a support...
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JP2015018287A |
To provide an optical device for observing an observed object in a distance which is high resolution and small sized.An improved type binocular observation device is provided with a single objective optical lens system 12A having an inci...
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JP2015012456A |
To provide a scope unit for mobile information terminals that facilitates accurate and simple photographing in medical care and physicochemical fields by utilizing the photographing function of mobile information terminals.A scope unit 1...
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JP5653816B2 |
To provide an eccentric optical system having an exit pupil of a wide angle of view and a large size, and capable of realizing high resolution.The eccentric optical system according to the present invention is an optical system having a ...
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JP5646440B2 |
To provide an eyepiece that has a long eye relief, excellent characteristics over a wide field, and a large incident pupil diameter and is small in size, light in weight, and suitable for use in a night vision device.An eyepiece 1 has a ...
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JP5646238B2 |
The image display apparatus of the invention comprises a prism optical system using at least two optical surfaces, each having an optical function. At least two surfaces of the two optical surfaces are rotationally asymmetric surfaces, a...
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JP5642699B2 |
An optical device for viewing distant objects. The device includes an objective system and at least one ocular and achieves a magnifying power of greater than 0.6 mm−1 times the entrance pupil diameter in millimeters with an exit pupil...
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JP5632718B2 |
The invention provides an ocular lens well corrected for aberrations through a sufficiently large angle of view and having a sufficient eye relief while ensuring avoidance of increasing the overall length and suppression of an increase i...
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JP5632714B2 |
Provided are an ocular zoom optical system which has a wide apparent field of view even on a low power side and in which aberrations are favorably corrected while a sufficient eye relief is secured over the entire zoom range, and an opti...
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JP5629996B2 |
To solve the problem that when a plurality of display screens are provided in an observing direction, lenses disposed between an observer and the display screens for the observation of these display screens generates aberrations differen...
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JP2014215471A |
To provide an eyepiece optical system for finders, thin and low-profiled, yet capable of observing an excellently corrected image by securing a sufficient eye relief.The eyepiece optical system for finders is configured, in order from an...
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JP5622102B2 |
To provide a small sized variable power finder having high variable power while securing a large angle of view at low magnification.The real image type variable power finder has: a first lens group G1 with negative refractive power; a se...
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JP5605309B2 |
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JP5603716B2 |
The invention provides a prism optical system includes a prism in which a space formed by at least two optical surfaces mutually decentered with respect to an axial chief ray of an incident light beam is filled up with a medium having a ...
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JP5591027B2 |
To provide an electronic view finder that can easily ensure image quality even with downsizing and securing of eye point and view angle.An electronic view finder comprises: a first lens group including single lenses having positive refra...
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JP5587017B2 |
An eyepiece lens includes, in order from an image display surface side to an observer side, a positive first lens, a negative second lens, and a positive third lens. A surface on the image display surface side of the positive first lens ...
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