Abstract: There is provided a technique that can suppress generation of flare and/or ghost by incident light reflecting off an inner wall of the spacer in a lens unit including a wafer-level lens and a spacer. A lens unit is formed by joining a lens portion including a lens and a spacer portion including a through hole through which light emitted from the lens passes, in which the spacer portion includes, in an end surface in which the lens portion is joined, an opening portion of the through hole and an inner wall portion, which is a wall surface of an outer edge of the opening portion, and the inner wall portion has a surface roughness greater than a surface roughness of an end surface of the spacer portion opposite to the end surface in which the lens portion is joined.

Abstract: As a first aspect, provided is a hybrid lens for which peeling and shifting of a glass and a resin lens do not easily occur, and for which floating of an adhesive layer and peeling between the glass and resin lens do not easily occur even when the hybrid lens is exposed to a high temperature environment. As a second aspect, provided is an easily produced hybrid lens in which a glass and a resin lens are laminated, and in which the resin lens and a light-shielding portion are laminated with good precision. The hybrid lenses 11 and 12 each include a glass substrate 3, a resin lens 2, and an adhesive layer 4 provided between the glass substrate 3 and the resin lens 2. In the hybrid lens 11, the glass transition temperature of the resin lens 2 is higher than the glass transition temperature of the adhesive layer 4, and the difference between the glass transition temperature of the resin lens 2 and the glass transition temperature of the adhesive layer 4 is from 97 to 150° C.

Abstract: Provided is a technique that can suppress stray light incident on a microlens array from a gap between a lens component and a light shielding film and improve the imaging performance of the microlens array. A light shielding film is provided around one or more lens components arranged at a base material portion having a substantially flat plate shape such that a predetermined gap region is formed with respect to at least a portion of an outer periphery of the lens component, and a surface roughened region having a surface roughness greater than that of another region in the base material portion is provided in at least a portion of the gap region.

Abstract: A lens molding apparatus (100) of the present invention includes: a mold (1) having a transfer surface (1a); a mold (2) having a transfer surface (2a); heating devices (3a and 3b) for curing, by heating, a resin material which is supplied to the transfer surface (1a) and against which the transfer surface (2a) is pressed; a pressure control section (6) for controlling a support device (4) so that the support device (4) applies a pressure on the resin material; and a DC power source (7) for forming an electric field by applying a voltage between the molds (1 and 2).

Abstract: A lens aligning device includes: a decentering detection mechanism for measuring a first lens decentering amount; a aligning position calculation control mechanism for calculating a target inter-lens decentering amount by using Formula (1); an adjustment mechanism for moving at least one of a first lens and a second lens so that the inter-lens decentering amount matches the target inter-lens decentering amount.

Abstract: A molding apparatus (1) includes: a servomotor (11) for pressing a resin component (W) by moving an upper mold (MU) in a direction in which the upper mold (MU) is made close to a lower mold (ML); servomotors (12a and 13a) each of which retains X-coordinate and Y-coordinate positions of the lower mold (ML); and a position detection section (41) which determines whether or not the resin component which is sandwiched between the upper mold and the lower mold has been cured, the servomotors each terminating the retention of the lower mold when the resin component has been cured. This makes it possible to obtain a molded product while preventing positional displacement caused by a decrease in volume of a resin which is being cured.

Abstract: An annealing method according to the present invention is an annealing method of annealing a molded body (1) which is molded from a molding material in a molding step, and the method includes the steps of: (I) releasing stress from the molded body (1) by heating the molded body (1); and (II) correcting a warp of the molded body (1), by simultaneously heating the molded body (1) and applying a load to the molded body (1). This achieves an annealing method which makes it possible to obtain a molded body that is free from residual stress and distortion.

Abstract: A lens aligning device includes: a decentering detection mechanism for measuring a first lens decentering amount; a aligning position calculation control mechanism for calculating a target inter-lens decentering amount by using Formula (1); an adjustment mechanism for moving at least one of a first lens and a second lens so that the inter-lens decentering amount matches the target inter-lens decentering amount.

Abstract: A lens aligning device includes: a decentering detection mechanism for measuring a first lens decentering amount; a aligning position calculation control mechanism for calculating a target inter-lens decentering amount by using Formula (1); an adjustment mechanism for moving at least one of a first lens and a second lens so that the inter-lens decentering amount matches the target inter-lens decentering amount.

Abstract: A lens molding apparatus (100) of the present invention includes: a mold (1) having a transfer surface (1a) for transferring a predetermined lens shape to a resin material; a mold (2) having a transfer surface (2a) for transferring a predetermined lens shape to the resin material; a support device (3) for moving the mold (1); a heating device (4) curing the resin material so as to form a lens, the resin material having been supplied between the transfer surface (1a) and the transfer surface (2a); and an ultrasonic vibrator (5) applying vibration from a side surface of the mold (1 or 2) so as to form a gap at least at a part between the transfer surface (1a or 2a) and the lens.

Abstract: A molding apparatus (1) includes: a servomotor (11) for pressing a resin component (W) by moving an upper mold (MU) in a direction in which the upper mold (MU) is made close to a lower mold (ML); servomotors (12a and 13a) each of which retains X-coordinate and Y-coordinate positions of the lower mold (ML); and a position detection section (41) which determines whether or not the resin component which is sandwiched between the upper mold and the lower mold has been cured, the servomotors each terminating the retention of the lower mold when the resin component has been cured. This makes it possible to obtain a molded product while preventing positional displacement caused by a decrease in volume of a resin which is being cured.

Abstract: A molded product manufacturing method and a molded product manufacturing apparatus are realized, each of which has improved quality and productivity of a molded product. A pressure to be applied to an upper mold (ML) and a lower mold (ML) is reduced in stages during a process from a start of decrease in internal temperatures of the upper mold (ML) and the lower mold (ML) to a complete mold-release of a resin component (W). This prevents an excessive load from being applied to the resin component (W) which has been molded but has not been mold-released.

Abstract: When an optical element is produced by sandwiching a resin between a pair of molds, the resin is cured while a mold is kept in contact with the resin until the temperature of the resin reaches a gel point. Throughout the process, a load cell monitors pressure exerted to the mold. After detection of a state in which the pressure exerted to the mold is a negative pressure, the resin is cured while the position of the mold is controlled so that the pressure exerted to the mold is increased to a predetermined positive pressure and thereafter the positive pressure is maintained.

Abstract: A lens molding apparatus of the present invention includes: a mold having a transfer surface for transferring a predetermined lens shape to a dielectric resin; a mold having a transfer surface for transferring a predetermined lens shape to the dielectric resin; a support device moving the mold; a heating device heating the dielectric resin so as to form a resin molded product, the dielectric resin having been supplied on the transfer surface; a DC power source forming an electric field by application of direct-current voltage between the mold and the mold; and switches switching a direction of the electric field between a direction from the mold to the mold and a direction from the mold to the mold.

Abstract: To make it possible to adjust a relative positional relationship between an imaging lens and an image pickup device highly precisely within a short period of time, a position adjusting device includes: an image pickup device rotating and holding section (101) for holding an image pickup device (202) at any one of three or more rotational angles; a relationship information obtaining section (103) for obtaining, for each of respective images captured at the rotational angles, information on a relationship between the corresponding rotational angle and a contrast of the image at a plurality of points or regions in the image; a line approximation section (104) for approximating the relationship with use of an approximation line; and an image pickup device adjusting section (105) for rotating the image pickup device (202) so that the image pickup device (202) is held at a rotational angle corresponding to a position at which a plurality of the approximation lines cross each other.

Abstract: An image pickup element position detection device (10B) of the present invention detects a positional relationship between an image pickup element (2) and a lens (3) which are to be mounted on an optical system device and face each other. The image pickup element position detection device (10B) includes (i) an opposing mirror (5) which is disposed parallel to the image pickup element (2) so that the opposing mirror (5) and the image pickup element (2) are placed on opposite sides of the lens (3) and (ii) at least two side mirrors (11a and 11b) which face each other are disposed (i) perpendicularly to the opposing mirror (5) and (ii) on respective lateral sides of an area between the opposing mirror (5) and the lens (3).

Abstract: To make it possible to adjust a relative positional relationship between an imaging lens and an image pickup device highly precisely within a short period of time, a position adjusting device includes: an image pickup device rotating and holding section (101) for holding an image pickup device (202) at any one of three or more rotational angles; a relationship information obtaining section (103) for obtaining, for each of respective images captured at the rotational angles, information on a relationship between the corresponding rotational angle and a contrast of the image at a plurality of points or regions in the image; a line approximation section (104) for approximating the relationship with use of an approximation line; and an image pickup device adjusting section (105) for rotating the image pickup device (202) so that the image pickup device (202) is held at a rotational angle corresponding to a position at which a plurality of the approximation lines cross each other.

Abstract: An annealing method according to the present invention is an annealing method of annealing a molded body (1) which is molded from a molding material in a molding step, and the method includes the steps of: (I) releasing stress from the molded body (1) by heating the molded body (1); and (II) correcting a warp of the molded body (1), by simultaneously heating the molded body (1) and applying a load to the molded body (1). This achieves an annealing method which makes it possible to obtain a molded body that is free from residual stress and distortion.

Abstract: A molding apparatus (1) includes: a servomotor (11) for pressing a resin component (W) by moving an upper mold (MU) in a direction in which the upper mold (MU) is made close to a lower mold (ML); servomotors (12a and 13a) each of which retains X-coordinate and Y-coordinate positions of the lower mold (ML); and a position detection section (41) which determines whether or not the resin component which is sandwiched between the upper mold and the lower mold has been cured, the servomotors each terminating the retention of the lower mold when the resin component has been cured. This makes it possible to obtain a molded product while preventing positional displacement caused by a decrease in volume of a resin which is being cured.

Abstract: A molded product manufacturing method and a molded product manufacturing apparatus are realized, each of which has improved quality and productivity of a molded product. A pressure to be applied to an upper mold (ML) and a lower mold (ML) is reduced in stages during a process from a start of decrease in internal temperatures of the upper mold (ML) and the lower mold (ML) to a complete mold-release of a resin component (W). This prevents an excessive load from being applied to the resin component (W) which has been molded but has not been mold-released.