Abstract:
A light-emitting module has: a single reflector having a plurality of concave reflection surfaces; and light emitters in a same number as a number of the concave reflection surfaces. Each of the concave reflection surface has an outer shape partially notched at a boundary thereof with the adjacent concave reflection surface. Each of the light emitters emits light toward the concave reflection surface.
Abstract:
Provided is a body liquid collecting device comprising a body liquid collecting auxiliary sheet (9), and a transparent member (12) made integral with the body liquid collecting auxiliary sheet (9) and having a lens (11) for collecting laser beam from a semiconductor laser (4b) such that it is interposed between the body liquid collecting auxiliary sheet (9) and the lens (11), so that the surface of the auxiliary sheet (9) may have its surface positioned at the focal point of the lens (11). As a result, the laser beam can be collected at a predetermined portion (or the focal point portion), so that a micro-hole can be reliably formed with a relatively low laser power.
Abstract:
A laser projection apparatus includes: laser devices; incident optical systems, each of which is supplied with light beam from the laser device; a scanning device for two-dimensionally scanning the light beam; and a projection optical system for projecting the light beam from the scanning device onto a screen; wherein the scanning device includes a resonant drive mirror for performing deflection in a main scanning direction, and the projection optical system includes at least two nonaxisymmetric-shaped reflecting mirrors and a light source image is present between the first mirror, which is most closest to the scanning device, and the second mirror, thereby achieving a laser projection apparatus using a projection optical system which is easy to downsize, has velocity uniformity and has successful projection characteristics and brightness.
Abstract:
An optical element for being carried on a slider moving over a recording medium, the optical element being made of a fluid material that transmits light guided from a light source, the optical element which includes a groove an first end which is open and an second end is closed, and a deflection surface for deflecting a light coming from the aforementioned second end of the groove, wherein the thickness of the aforementioned fluid material forming the bottom of the groove is greater on the second end than on the first end.
Abstract:
A recorder has a recording medium for information recording, a light source, an optical system, a slider, and an optical waveguide. To the optical system, light from the light source enters, and the slider moves relative to the recording medium while not in contact therewith. The optical waveguide is arranged at position facing the recording medium in the slider so that light entering from the optical system is irradiated on the recording medium. Where the mode field diameter of the optical waveguide on the light output side is d and the mode field diameter thereof on the light input side is D, the mode field diameter is converted by smoothly changing the diameter of the optical waveguide to satisfy D>d.
Abstract translation:记录器具有用于信息记录的记录介质,光源,光学系统,滑块和光波导。 对于光学系统,来自光源的光进入,并且滑块相对于记录介质移动而不与其接触。 光波导布置在滑块中面向记录介质的位置,使得从光学系统进入的光被照射在记录介质上。 在光输出侧的光波导的模场直径为d,光输入侧的模场直径为D的情况下,通过平滑地改变光波导的直径来转换模场直径,满足D> d 。
Abstract:
An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in order to project a magnified image of the image displayed on the display surface onto the projection surface includes a plurality of reflecting surfaces having a power. At least two of the reflecting surfaces have a free-form curved surface, and, of all the reflecting surfaces, the one closest to the projection surface has a negative power and at least one of the other has a positive power. Alternatively, in a rear projection optical system having a projection optical system for projecting an image displayed on a panel display surface onto a screen surface, the projection optical system includes at least four curved-surface reflecting mirrors.
Abstract:
An image-taking optical system for forming an optical image of an object on the light-receiving surface of an image sensor includes a plurality of optical blocks. The optical blocks each have a prism unit provided with a curved surface and an optical unit composed of a member different from a member composing the prism unit. The prism unit uses the curved surface as a total reflection surface and also as a transmission surface. The optical unit has near the curved surface a curved surface identically or substantially identically shaped therewith.
Abstract:
An optical system is used in an optical pickup apparatus which conducts reproducing and/or recording information for a first optical disk having a thinner protective substrate t1 [mm] and a second optical disk having a thicker protective substrate t2 [mm]. The optical system comprises a relay lens group comprising at least one movable lens group. The movable lens group moves so that for the first optical disk, a parallel or substantial parallel light flux emitted from the relay lens group enters the objective lens while a divergent light flux emitted from the relay lens group enters the objective. The movable lens group satisfies the following formula: 7.5
Abstract:
An oblique projection optical system for leading rays of light from a display surface on which an image is displayed to a projection surface in such a way that the ray of light from the center of the display surface is obliquely incident on the projection surface in order to project a magnified image of the image displayed on the display surface onto the projection surface includes a plurality of reflecting surfaces having a power. At least two of the reflecting surfaces have a free-form curved surface, and, of all the reflecting surfaces, the one closest to the projection surface has a negative power and at least one of the other has a positive power. Alternatively, in a rear projection optical system having a projection optical system for projecting an image displayed on a panel display surface onto a screen surface, the projection optical system includes at least four curved-surface reflecting mirrors.
Abstract:
An imaging optical system 100 has an imaging side prism 102 for bending incident light at about 90 degrees for reflection, and an image sensor 105 having a light receiving surface opposing to an exit surface 102b of the imaging side prism 102. At least one of an incident surface 101a of an incident side prism 101 and an incident surface 101a of the imaging side prism 102, or at least one of an exit surface 101b of the incident side prism 101 and the exit surface 102b of the imaging side prism 102 has an optical power. An arrangement relation between the exit surface 102b of the imaging side prism 102 and the image sensor 105 is established to satisfy the conditional formula (1): 0.0≦d/a