Abstract: The present invention is characterized in that a light emitting part of LED 1 has a planar and point-symmetrical shape, a light emission angle distribution is a Lambert distribution and a light emission face is a scattering face; a hemispheric mirror 3 forms a reflection face 3a on the interior face, and has an aperture 3b at the center, while the reflection face 3a is disposed so as to oppose to LED 1; a normal line of LED 1 and an optical axis of the hemispheric mirror 3 are coincident with each other; an interval between LED 1 and the hemispheric mirror 3 is equal to or smaller than a curvature radius of the hemispheric mirror 3; a dimension of the aperture 3b of the hemispheric mirror 3 is substantially equal to a radiation dimension; and sin (tan?1 d LED/2t)?NA object is established.

Abstract: The present invention is characterized in that a light emitting part of LED 1 has a planar and point-symmetrical shape, a light emission angle distribution is a Lambert distribution and a light emission face is a scattering face; a hemispheric mirror 3 forms a reflection face 3a on the interior face, and has an aperture 3b at the center, while the reflection face 3a is disposed so as to oppose to LED 1; a normal line of LED 1 and an optical axis of the hemispheric mirror 3 are coincident with each other; an interval between LED 1 and the hemispheric mirror 3 is equal to or smaller than a curvature radius of the hemispheric mirror 3; a dimension of the aperture 3b of the hemispheric mirror 3 is substantially equal to a radiation dimension; and sin (tan?1 d LED/2t)?NA object is established.

Abstract: To enable to display a scale indicative of a reference length on a screen of a display at an accurate length even when exchanging the lens in an image pickup apparatus to any lens. In a case of mounting an exchange lens (4F, 4Z) to an image pickup apparatus main body (3) and displaying an image of an object picked up by an image sensor (2) and a scale (5) indicative of a reference length in juxtaposition on a screen of a display (6), a previously measured optical magnification or an actual magnification is outputted from optical magnification outputting means (8) provided to the exchange lens (4F, 4Z) is outputted, an actual magnification on the screen of the display (6) is calculated based on the optical magnification, the size for the image sensor and the screen size, and the size of the scale on the screen is set based on the actual magnification and the reference length of the scale by a scale setting means (17).

Abstract: To enable to display a scale indicative of a reference length on a screen of a display at an accurate length even when exchanging the lens in an image pickup apparatus to any lens. In a case of mounting an exchange lens (4F, 4Z) to an image pickup apparatus main body (3) and displaying an image of an object picked up by an image sensor (2) and a scale (5) indicative of a reference length in juxtaposition on a screen of a display (6), a previously measured optical magnification or an actual magnification is outputted from optical magnification outputting means (8) provided to the exchange lens (4F, 4Z) is outputted, an actual magnification on the screen of the display (6) is calculated based on the optical magnification, the size for the image sensor and the screen size, and the size of the scale on the screen is set based on the actual magnification and the reference length of the scale by a scale setting means (17).

Abstract: A lighting apparatus in which plural light emitting devices for illuminating light to an object to be illuminated from the periphery thereof are put to light control, and a control device is provided for controlling light to the light emitting devices on every segment divided isogonally with respect to the lighting center at which the light is focused by a control device, wherein the control device 6 comprises an illuminance distribution setter 7 that sets the illuminance on every segments S1 to S4 individually in accordance with the start position of a vector that represents the lighting direction to the lighting center F on the XY coordinate plane D with the lighting center F being as an origin P0, and a light controller 9 that reads out the illuminance on every segment from the illuminance distribution setter 7 in accordance with the input data from a two dimensional data input device 8 that sets the start position and controls the light.

Abstract: A current to light emitting devices when an application voltage is at or higher than the lower limit voltage for lighting determined by the arrangement of the light emitting devices, and an identification circuit that outputs a current identification signal in accordance with an appropriate current for the lighting circuit when the application voltage is lower than the lower limit value for lighting, and the power supply comprises a driving power supply that applies a lighting voltage at or higher than the lower limit voltage for lighting, an identification power supply that applies an identification voltage at or lower than the lower limit voltage for lighting, a current setter that sets an appropriate current to be supplied to the lighting circuit based on the current identification signal outputted from the identification circuit.

Abstract: A lens cap having a lens formed in the window at its top portion, used for a semiconductor laser, etc., using an aspherical lens instead of a spherical lens with large aberration. This invention proposes a lens cap having an aperture formed at its top portion, comprising a lens formed to fill the aperture in such a manner as to bulge on both sides of the aperture and further to extend beyond the circumferential edge defining the aperture along the top portion on both sides of the top portion or under the top portion only, wherein the outer circumference of the portion extended under the top portion contacts the lateral inside wall and top inside wall of the cap member. So, this invention can provide a cheap lens cap with high performance.

Abstract: A molded glass lens with a lens holding cylinder integrated, comprising the lens holding cylinder having an adequate number of through holes formed in it and forming a hot working space together with a mold during molding and a glass lens proper molded in the lens holding cylinder, wherein the excessive portion of the base material of the lens has flowed into said through holes, and also proposes a production device thereof.

Abstract: A lighting apparatus in which plural light emitting devices for illuminating light to an object to be illuminated from the periphery thereof are put to light control, and a control device is provided for controlling light to the light emitting devices on every segment divided isogonally with respect to the lighting center at which the light is focused by a control device, wherein the control device 6 comprises an illuminance distribution setter 7 that sets the illuminance on every segments S1 to S4 individually in accordance with the start position of a vector that represents the lighting direction to the lighting center F on the XY coordinate plane D with the lighting center F being as an origin P0, and a light controller 9 that reads out the illuminance on every segment from the illuminance distribution setter 7 in accordance with the input data from a two dimensional data input device 8 that sets the start position and controls the light.

Abstract: A lighting method capable of lighting individual light emitting devices in a lighting head connected to a power supply each at a rated current irrespective of the specification of the lighting head by using a power supply of an identical specification, and a lighting apparatus used for the lighting method, the lighting apparatus comprises lighting heads each having one or more light emitting devices arranged in any optional pattern and comprising a lighting circuit that supplies a current to light emitting devices when an application voltage is at or higher than the lower limit voltage VLmin for lighting determined by the arrangement of the light emitting devices, and an identification circuit that outputs a current identification signal in accordance with an appropriate current for the lighting circuit when the application voltage is lower than the lower limit value for lighting, and the power supply comprises a driving power supply that applies a lighting voltage at or higher than the lower limit voltage fo

Abstract: A laser manipulation apparatus for trapping and separating an optional micro-sample comprising a cell plate having a first cell for storing a liquid medium containing micro-sample s and a second cell for storing a liquid medium not containing micro-sample s each of the first and second cells being opened at the upper surface, in communication with each other by way of a narrow induction channel for inhibiting free movement of the micro-sample s, an optical trapping system for irradiating and trapping a single micro-sample out of a group of micro-sample s dispersed and suspended in the liquid medium stored in the first cell and a sample separation device for moving the single micro-sample from the first cell through the induction channel into the second cell.

Abstract: A laser trapping apparatus for optically trapping an optional micro-particle from a group of micro-particles such as microorganisms suspended in a medium by a laser beam focused at a focal point of an optical converging system at the focal point, the apparatus comprising:a parallel beam output device for outputting a plurality of laser beams around an optical axis in parallel with said optical axis, and an optical converging system having an objective lens for focusing the plurality of laser beams irradiated from the parallel beam output device to the focal point.

Abstract: The present invention involves a multi-point laser trapping device in which laser light is irradiated on medium that includes micro-particles, and captures and arranges multiple micro-particles within said medium simultaneously; and is characterized by irradiating the aforementioned laser light from a single laser light source, and by arranging in that light route grating which forms on medium a diffraction pattern consisting of multiple point laser spots.

Abstract: The first purpose of the invention is to provide cordless light irradiation in which a stable amount of light is emitted when irradiating, and moreover, the device can be made compact. The second purpose is to offer a cordless light irradiation device that can control the battery temperature during use to a lower temperature than in the past.Halogen lamp 1 equipped with a reflective mirror and batteries 4 are housed in handpiece 2. The device is equipped with battery case 3 that is provided with ventilation holes 5, cooling fan 6 and optical filter 7, and lamp guide 8 is provided on the terminal of handpiece 2.