Medium power microobjective: a new design

K. D. Sharma

doi:10.1364/AO.24.000299

Applied Optics
Vol. 24,
Issue 2,
pp. 299-302
(1985)
•https://doi.org/10.1364/AO.24.000299

Medium power microobjective: a new design

K. D. Sharma

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K. D. Sharma, "Medium power microobjective: a new design," Appl. Opt. 24, 299-302 (1985)

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Abstract

A new design for a microobjective having magnification and numerical aperture of 40× and 0.65, respectively, has been developed. The system adopted for the new design consists of five elements but has a different configuration from the traditional Amici construction. The new design is compared with Amici type designs, and it has been found that the proposed new configuration is capable of giving better performance than the traditional Amici configuration.

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Surface no.	Curvature C	Clear diameter D	Separation d	Refractive index n_d	Abbe value V
(1)	0.136802	5.84
			4.00	1.6103	57.3
(2)	−0.053679	4.86
			2.55	1.0	—
(3)	−0.248092	3.22
			2.25	1.7004	30.3
(4)	0.395572	3.22
			1.49	1.6103	57.3
(5)	−0.101115	3.30
			0.05	1.0	—
(6)	0.273912	3.28
			3.21	1.6103	57.3
(7)	−0.114366	2.38
			0.05	1.0	—
(8)	0.619561	2.02
			0.91	1.6103	57.3
(9)	0.249796	1.40

Surface no.	Curvature C	Clear diameter D	Separation d	Refractive index n_d	Abbe value V
(1)	0.105849	5.90
			5.64	1.5176	64.1
(2)	−0.224942	5.02
			0.70	1.6511	33.6
(3)	−0.043464	4.92
			0.05	1.0	—
(4)	0.245118	4.70
			3.86	1.5176	64.1
(5)	−0.232067	2.92
			0.70	1.6511	33.6
(6)	0.083408	2.44
			0.05	1.0	—
(7)	0.538441	2.20
			1.41	1.5407	59.5
(8)	0.0	1.30

Surface no.	Curvature C	Clear diameter D	Separation d	Refractive index n_d	Abbe value V
(1)	0.080000	10.00
			3.0	1.5160	62.9
(2)	−0.105197	9.80
			1.5	1.6225	36.0
(3)	−0.006625	9.40
			1.01	1.0	—
(4)	0.083001	8.82
			3.0	1.5160	62.9
(5)	−0.120106	8.40
			1.5	1.6225	36.0
(6)	−0.014925	7.60
			2.09	1.0	—
(7)	0.224215	5.60
			4.9651	1.5407	59.4
(8)	0.0	1.82

Surface no.	Curvature C	Clear diameter D	Separation d	Refractive index n_d	Abbe value V
(1)	0.136802	5.84
			4.00	1.6103	57.3
(2)	−0.053679	4.86
			2.55	1.0	—
(3)	−0.248092	3.22
			2.25	1.7004	30.3
(4)	0.395572	3.22
			1.49	1.6103	57.3
(5)	−0.101115	3.30
			0.05	1.0	—
(6)	0.273912	3.28
			3.21	1.6103	57.3
(7)	−0.114366	2.38
			0.05	1.0	—
(8)	0.619561	2.02
			0.91	1.6103	57.3
(9)	0.249796	1.40

Surface no.	Curvature C	Clear diameter D	Separation d	Refractive index n_d	Abbe value V
(1)	0.105849	5.90
			5.64	1.5176	64.1
(2)	−0.224942	5.02
			0.70	1.6511	33.6
(3)	−0.043464	4.92
			0.05	1.0	—
(4)	0.245118	4.70
			3.86	1.5176	64.1
(5)	−0.232067	2.92
			0.70	1.6511	33.6
(6)	0.083408	2.44
			0.05	1.0	—
(7)	0.538441	2.20
			1.41	1.5407	59.5
(8)	0.0	1.30

Abstract

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Applied Optics