摘要:
A light-emitting device (10) is arranged such that (x) R 1 monotonically decreasing as α 1 increases, at least in a range of α 1 1 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-incoming surface (2a), and R 1 is a distance between the reference point and the arbitrary point on the light-incoming surface (2a); (y) R 2 monotonically increasing as α 2 increases, at least in a range of α 2 2 is an angle between the light axis Z and a straight line that passes through the reference point and an arbitrary point on a light-outgoing surface (2b), and R 2 is a distance between the reference point and the arbitrary point on the light-outgoing surface(2b); and (z) A 2 scatters light without generating uneven brightness on a liquid crystal display panel and has higher scattering ability that is obtained by decreasing a reflectance caused by the Fresnel reflection, where n is a refraction index of a material forming a light flux controlling member (2), and A 2 = ΔR 2/ (R 2 Δα 2 ), where ΔR 2 is an increment of R 2 and Δα 2 is an increment of α 2 .
摘要:
There is provided a micro-channel chip that can be coated uniformly with a thin inorganic oxide film and that can prevent ionic hydrophobic substance from adsorbing on the surface of the inorganic oxide film. In this micro-channel chip, the surfaces of the inner walls of through-holes in an upper plate member and a channel of a lower plate member are entirely coated with a SiO 2 film. The SiO 2 film is formed with two layers, namely a bottom layer that contains a high content of carbon atoms and that is formed in a part that contacts a resin substrate, and a surface layer that contains nearly zero content of carbon atoms and that is formed in a part that exposes on the surface of a channel.
摘要:
An optical element (15) including a first groove (17) extending from first end of the outer peripheral face in an optical axis direction towards second end, and a second groove (21) connected to the first groove and extending from second end of the outer peripheral face in the optical axis direction towards first end; and a position-adjusting concave part (16) which is between the first and second grooves and adjusts positions by adjusting member in the optical axis direction, a revolving direction about the optical axis, a width direction of first and second grooves, which is orthogonal to the optical axis, and in a synthesized direction that is a combination of at least two of those directions, wherein the optical element is molded by using only a first molding die for molding a part on the first groove side and a second molding die for molding a part on the second groove side.
摘要:
A resin-made gearing apparatus that includes a configuration in which only one tooth flank side of each tooth in one of a pair of gears is provided with an overhang section that is disposed on at least one end portion in a tooth width direction, and overhangs diagonally from the one tooth flank side toward the adjacent tooth side; an end portion in a tooth width direction of each tooth in the other gear is provided with a lightening section that is disposed in a tooth flank of each tooth on an end face on the side of the end portion corresponding to the overhang section of the one gear, so that when the opposite teeth of the pair of gears are meshed with each other, the overhang section of the one gear is elastically deformed and also the lightening section of the other gear is elastically deformed, to absorb a backlash. Thus, the backlash appearing at the meshing of the pair of rein-made gears is absorbed by a backlash absorbing section comprised of the overhang section and the lightening section, and also, the deformation of and stress in the backlash absorbing section are reduced.
摘要:
A rotary shaft coupling is provided that can accurately transmit rotation of one rotation axis to another rotation axis even when shaft core misalignment is present between the rotation axes, and has superior durability, without generating noise. In a rotary shaft coupling 1 including a pair of joint halves 2a and 2b that are respectively attached to opposing axial end sections 12a and 12b and transmit rotation of one axis 11a to another axis 11b, outer teeth 6a of a gear are provided on one joint half 2a and inner teeth 6b that mesh with the outer teeth 6a and have a same number of teeth as the outer teeth 6a are provided on the other joint half 2b. Each outer tooth 6a and each inner tooth 6b are formed to absorb shaft core misalignment between both axes 11a and 11b and perform rotation transmission by having an involuted tooth profile of a same module and a tooth flank of the involuted tooth profile displaced in a circumferential direction.
摘要:
A display (1) has a member (3) irradiated by a surface light source device (2) comprising a light diffusion member (7) and emission device. The emission device is provided with a light flux control member (5) having a recess (10) and light control emission face (6) which is configurated so as to satisfy Conditions 1 and 2 in a range at least covering a half- intensity- angular- range. Light emitting element(s) (4) may be sealed. Condition 1 is that relation θ 5 / θ 1 > 1 is satisfied except for light emitted from a light emitting element (4) toward within an angular-neighbourhood of a standard optical axis (L) of the emission device, and Condition 2 is that value of θ 5 / θ 1 decreases gradually according to increasing of θ 1 , where θ 1 is an emission angle of any light at being emitted from the light emitting element (4), and θ 5 is an emission angle of that light of θ 1 at then being emitted from the light control emission face (6) of the light flux control member (5).
摘要:
The imaging lens comprises, in order from its object side to an image surface side, a first lens that is a meniscus lens having a positive power, the convex surface of which faces the object side, a diaphragm, a second lens that is a meniscus lens having a positive power, the convex surface of which faces the image surface side, and a third lens that is a biconcave lens having a negative power, wherein the inequalites 0.11 4 /fl≤0.25 (where, d 4 : distance between the second lens and the third lens on the optical axis, and fl: focal distance of the entire lens system) is satisfied.