摘要:
A glass ceramics composition for recording disk substrate consists essentially, expressed in terms of weight percent on the oxide basis, of from 65 to 80 wt % of SiO2, from 3 to 15 wt % of Al2O3, from 3 to 15 wt % of Li2O, from 0.2 to 5 wt % of P2O5, and from 0.1 to 0.8 wt % of ZrO2.
摘要翻译:用于记录圆盘基材的玻璃陶瓷组合物基本上以氧化物的重量百分数表示,为65至80重量%的SiO 2,3至15重量%的Al 2 O 3,3至15重量%的Li 2 O, 0.2〜5重量%的P 2 O 5和0.1〜0.8重量%的ZrO 2。
摘要:
A zoom lens system has at least three lens units of, from the most object side, a first lens unit having a negative optical power, a second lens unit having a positive optical power and a third lens unit, wherein the distances between the lens units are varied by moving all of the lens units during zooming. The zoom lens system satisfies the predetermined mathematical condition.
摘要:
A digital camera of the present invention includes a microcomputer 110 having a live view mode controlling so that image data generated by a CMOS sensor 133 or image data obtained by subjecting the image data generated by the CMOS sensor 133 to predetermined processing is displayed on a liquid crystal monitor 150 as a moving image in real time, wherein the microcomputer 110 controls so that, when the live view mode is set, the digital camera comes out of the live view mode, and setting information on the digital camera is displayed on the liquid crystal monitor 150, in accordance with the manipulation of the manipulation portion 140. Due to this configuration, in a digital camera that includes a movable mirror and is capable of displaying a subject image in a live view through an electronic viewfinder, the operability thereof can be enhanced.
摘要:
An optical glass composition contains, in % by mole, 14.0% or more and 31.0% or less of SiO2, 19.0% or more and 40.0% or less of B2O3, 0% or more and 5.0% or less of Li2O, 0% or more and 12.0% or less of ZnO, 0% or more and 12.0% or less of ZrO2, 15.0% or more and 26.0% or less of La2O3, 22.0% or more and 38.0% or less of La2O3+ZrO2, 2.0% or more and 5.0% or less of Ta2O5 and 4.0% or more and 16.0% or less of Gd2O3, and has nd of 1.83 or higher and 1.87 or lower and νd of 43 or higher and 47 or lower, and a preform and an optical element are formed from the optical glass composition.
摘要翻译:光学玻璃组合物含有SiO 2为14.0%以上且31.0%以下,B 2 O 3为19.0%以上且40.0%以下,Li 2 O 0%以上且5.0%以下,0%以下 更多和12.0%以下的ZnO,0%以上且12.0%以下的ZrO 2,15.0%以上且26.0%以下的La 2 O 3,22.0%以上且38.0%以下的La 2 O 3 + ZrO 2,2.0%或 更多和5.0%以下的Ta 2 O 5和4.0%以上且16.0%以下的Gd 2 O 3,nd为1.83以上且1.87以下,n为43以上且47以下,预成型体和 光学元件由光学玻璃组合物形成。
摘要:
A surface emitting apparatus and image display apparatus using this surface emitting apparatus that enables improved luminance uniformity and smaller apparatus sizes. The surface emitting apparatus has a light source section that emits light, a light guide plate that guides light incident from an inlet face such that the light is emitted from a surface of an outlet face and a scanning section that scans the light emitted from the light source section on the inlet face of the light guide plate. The image display apparatus has the surface emitting apparatus and a display panel that is arranged on a side of the outlet face of the light guide plate.
摘要:
A digital camera includes a first lens group, a second group frame unit, a third lens group, a CCD unit, a lens barrel, and a chassis. The first lens group receives a light flux along a first optical axis. The second group frame unit receives and bends the light flux along a second optical axis after passing through the first lens group. The third lens group receives the bent light flux from the second group frame unit. The CCD unit receives the light flux passing through the third lens group. The lens barrel includes the first lens group, the second group frame unit, the third lens group, and the CCD unit. The chassis supports the lens barrel. The second optical axis is substantially parallel to the transverse direction of an object to be captured by the CCD unit when the bottom of the chassis is substantially parallel to the transverse direction of the object.
摘要:
An optical glass composition contains, in % by weight, 1.0% or more and 12.0% or less of SiO2, 8.0% or more and 18.0% or less of B2O3, 0% or more and 6.0% or less of ZnO, 1.0% or more and 10.0% or less of ZrO2, 25.0% or more and 47.0% or less of La2O3, 0% or more and 5.0% or less of R2O (here, R is at least one of Li, Na and K), 0% or more and 15.0% or less of Nb2O5, 0% or more and 7.0% or less of TiO2, 0% or more and 15.0% or less of Ta2O5, 1.0% or more of Nb2O5+TiO2+Ta2O5, 0% or more and 25.5% or less of Gd2O3, 0.5% or more and 15.0% or less of WO3 and 0.5% or more and 26.0% or less of Gd2O3+WO3, and has nd of 1.88 or higher and 1.92 or lower and νd of 33 or higher and 37 or lower, and a preform and an optical element are formed from the optical glass composition.
摘要翻译:光学玻璃组合物以重量%计含有SiO 2的1.0%以上且12.0%以下,B 2 O 8以上8.0%以上18.0%以下。 0%以上且6.0%以下的ZnO,1.0%以上且10.0%以下的ZrO 2,25.0%以上且47.0%以下,或者 少于2个O 2 O 3,0%以上且5.0%以下的R 2 O(这里,R为至少一个 Li,Na和K),0%以上且15.0%以下的Nb 2 O 5,0%以上且7.0%以下的TiO 2, 2%,0%以上且15.0%以下的Ta 2 O 5,1.0%以上的Nb 2 O 5%+ TiO 2 + Ta 2 O 5,0%以上至25.5%以下的Gd < 0≤N≤0.3%,0.5%以上且15.0%以下的WO 3和0.5%以上且26.0%以下的Gd
摘要:
A zoom lens system for directing an optical image on an electric image sensor that includes a first lens unit disposed on a most object side and having a negative optical power, a second lens unit having a positive optical power, and a third lens unit including a most image side lens unit having at least a positive lens element and a negative lens element, wherein the following condition is satisfied: 3
摘要:
A diffusing plate has a surface including a plurality of fine concave/convex portions regularly arranged within a cycle equal to or smaller than a predetermined wavelength. The surface has a larger surface roughness than the predetermined wavelength. An average value for an angle between a normal vector of the tangent plane of a roughness shape of the surface and a normal vector of a reference plane of the surface is 5 degrees or more.
摘要:
A zoom lens device has a zoom lens system having a plurality of lens units; and an image sensor converting an optical image formed by the zoom lens system, into electric image data. Lens surfaces constituting the zoom lens system are all refracting surfaces. Zooming is performed by varying the distances between the lens units. The following conditions are satisfied: 3.1≦ft/fw≦5.5 where fw is the focal length of the zoom lens system in the shortest focal length condition, and ft is the focal length of the zoom lens system in the longest focal length condition.