Please select the most similar patent number from A, B, C and D. Which number is?
Provided is an optical system for replaceable lens of stage lamps and lanterns, comprisingreplaceable light source (1), focusing lens group (21), enlarging lens group (22) and fixed lens group (3) arranged in sequence along the optical axis, the focusing lens group (21) and the enlarging lens group (22) are movable along the optical axis direction, the lens in the fixed lens group (3) is provided in the optical axis. By providing the replaceable fixed lens group (3) in the optical axis, the lamps and lanterns can be replaced with different types of fixed lens groups (3) according to actual requirements, that is, the optical effects such as the projection angle of the lamps and lanterns, the uniformity of the spot, and the softening degree of the edge of the spot can be changed, which makes the application more flexible.
A: A light effect adjusting system, comprising a light source module (100), and a focusing module (200), an amplifying module (300), and a light emitting lens (400) which are sequentially provided in a light beam projection direction of the light source module (100). The focusing module (200), the amplifying module (300), and the light emitting lens (400) are mounted on a stage lamp support, and the focusing module (200) and the amplifying module (300) can slide independently in the direction of a light path; an effect module (500) is further provided between the focusing module (200) and the light emitting lens (400) in a sliding manner; the effect module (500) comprises one or more effect pieces (530) capable of entering or leaving the light path, and movement of the effect module (500) and movement of the amplifying module (300) are independent of each other and do not affect each other. The effect module (500) capable of sliding independently is independently provided, so that the effect module (500) can avoid the amplifying module (300), the problems of limitation of the amplifying module (300) on entering of the effect pieces (530) and limitation of entering of the effect pieces (530) on lamp angle adjustment are solved, the entering of the effect pieces such as prisms and atomization pieces can be performed on the stage lamp in all angles, so that the stage lamp can present richer stage effects.
B: An optical lens set (55), a camera module (50), and an electronic device (100). The optical lens set (55) comprises a first lens and a second lens. The first lens comprises a first lens barrel (551) and a first lens group (M) fixed in the first lens barrel (551). The first lens group (M) has a positive optical power. The second lens is located on the image side of the first lens. The second lens comprises a lens motor (552) and a focusing anti-shake lens set mounted in the lens motor (552). The focusing anti-shake lens set comprises one or more focusing anti-shake lenses (N1). The lens motor (552) is used to drive the focusing anti-shake lens set in the direction of the optical axis of the optical lens set (55), and is also used to drive the focusing anti-shake lens set to move on a plane perpendicular to the optical axis. The camera module (50) comprises the optical lens set (55). The electronic device (100) comprises the camera module (50). The optical lens set (55) has a less complex structure and a lower cost investment.
C: A lens module (1), comprising a housing (10), a first support frame (30), a lens assembly (40), a focusing drive assembly (50), and an anti-shake drive assembly (60). The first support frame (30) is installed in the housing (10) and can move in the optical axis direction of the lens assembly (40) relative to the housing (10). The lens assembly (40) is installed in the first support frame (30), and can move in a direction perpendicular to the optical axis direction of the lens assembly (40) relative to the first support frame (30), and cannot move in the optical axis direction of the lens assembly (40) relative to the first support frame (30). The focusing drive assembly (50) is disposed on the housing (10) and the first support frame (30), so as to drive the first support frame (30) to drive the lens assembly (40) to move in the optical axis direction of the lens assembly (40). The anti-shake drive assembly (60) is disposed on the lens assembly (40) and the housing (10), so as to drive the lens assembly (40) to move in the direction perpendicular to the optical axis direction of the lens assembly (40). The focusing drive assembly (50) drives the first support frame (30) to drive the lens assembly (40) to move in the optical axis direction of the lens assembly (40) so as to carry out an automatic focus function thereof. The anti-shake drive assembly (60) drives the lens assembly (40) to move in the direction perpendicular to the optical axis of the lens assembly (40) so as to carry out an anti-shake compensation function thereof.
D: An assembling method for an optical camera lens, comprising: preparing first and second camera lens parts (100, 200) which are separate from each other; pre-locating the first and second camera lens parts (100, 200); adjusting and determining, according to active calibration, relative positions of the first and second camera lens parts (100, 200); and bonding the first and second camera lens parts (100, 200), the two being fixed and retained at the relative positions determined on the basis of the active calibration. A first lens (101) has a mark (109) and the mark (109) can be presented in an image with an optical axis calibration lens as a photographic object; and in the pre-locating step, the optical axis calibration lens is photographed, a first optical axis position is identified according to the mark (109) presented in the photographed image, and pre-locating is performed according to the identified first optical axis position and the second camera lens part (200). The assembling method for an optical camera lens, an assembling method for a photographic module, and the corresponding optical camera lens and photographic module can ensure, during pre-locating, that a camera lens has a stable loading position, and can improve the production efficiency and the product yield.
Answer: A