Plano-Concave Lenses

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Plano-Concave Lenses

have negative focal lengths
diverge collimated incident light
forms only virtual images which are seen through the lens
reduce spherical aberration, coma and distortion at negative-infinite or near-infinite conjugate ratios
with the concave surface facing the longest conjugate distance

These lenses are thicker at the edge than in the centre and flat on one side. The plano-concave lenses are used to expand light beams or to increase focal lengths in optical systems. They are often employed for beam expansion of high peak power pulsed lasers. A beam incident on a concave surface will be focused to a point outside the instrument.
Air heating and ionization at the unwanted focal point are possible with attendant mode disruption or material damage. To avoid this problem, the input lens should be reversed so that no concave surface faces a parallel beam.
A variety of anti-reflection coatings is available for these lenses. For appropriate coating please refer to the COATINGS section.
We can supply custom cutting, edging, coating or complete fabrication if required.

Material - BK7
Material - FS
Material - UVFS
Material - CaF2 For metric dimensions please add to catalogue number code M, for English – code E.

All prices are FCA Vilnius.
Prices are valid only for direct orders. For orders via distributors contact them directly.

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Code	Diameter - Metric	Diameter - English	Specifications (Material, Focal Length)	Centre thickness CT	Edge thickness ET	Item price, USD	In stock	Choose diameter	Add to cart
112-0105	12,5 mm	12,7 mm	BK7; F -25 mm	CT - 1,9 mm	ET - 3,5 mm	16.-		ME	Add to cart
112-0109	12,5 mm	12,7 mm	BK7; F -50mm	CT - 2,7 mm	ET - 3,5 mm	16.-		ME	Add to cart
112-0115	12,5 mm	12,7 mm	BK7; F -75 mm	CT - 2,9 mm	ET - 3,5 mm	16.-		ME	Add to cart
112-0117	12,5 mm	12,7 mm	BK7; F -100 mm	CT - 3 mm	ET - 3,5 mm	16.-		ME	Add to cart
112-0119	12,5 mm	12,7 mm	BK7; F -125 mm	CT - 3,1 mm	ET - 3,5 mm	16.-	Request	ME	Add to cart
112-0121	12,5 mm	12,7 mm	BK7; F -150 mm	CT - 3,2 mm	ET - 3,5 mm	16.-	Request	ME	Add to cart
112-0123	12,5 mm	12,7 mm	BK7; F -200mm	CT - 3,3 mm	ET - 3,5 mm	16.-	Request	ME	Add to cart
112-0125	12,5 mm	12,7 mm	BK7; F -250 mm	CT - 3,3 mm	ET - 3,5 mm	16.-		ME	Add to cart
112-0209	25 mm	25,4 mm	BK7; F -50 mm	CT - 2,8 mm	ET - 6 mm	20.-		ME	Add to cart
112-0215	25 mm	25,4 mm	BK7; F -75 mm	CT - 2,9 mm	ET - 5 mm	19.-		ME	Add to cart
112-0219	25 mm	25,4 mm	BK7; F -100 mm	CT - 3,1 mm	ET - 4,5 mm	19.-		ME	Add to cart
112-0223	25.0 mm	25,4 mm	BK7; F -125 mm	CT - 3,0 mm	ET - 4,0 mm	19.-	Request	ME	Add to cart
112-0227	25 mm	25,4 mm	BK7; F -150 mm	CT - 2,7 mm	ET - 3,7 mm	19.-		ME	Add to cart
112-0231	25 mm	25,4 mm	BK7; F -200 mm	CT - 3 mm	ET - 3,7 mm	19.-		ME	Add to cart
112-0235	25 mm	25,4 mm	BK7; F -250 mm	CT - 3,1 mm	ET - 3,7 mm	19.-		ME	Add to cart
112-0239	25 mm	25,4 mm	BK7; F -300 mm	CT - 3,1 mm	ET - 3,7 mm	19.-		ME	Add to cart
112-0243	25 mm	25,4 mm	BK7; F -400 mm	CT - 3,6 mm	ET - 4 mm	19.-	Request	ME	Add to cart
112-0247	25 mm	25,4 mm	BK7; F -500 mm	CT - 3,7 mm	ET - 4 mm	19.-		ME	Add to cart
112-0259	25 mm	25,4 mm	BK7; F -1000mm	CT - 3,8 mm	ET - 4 mm	19.-	Request	ME	Add to cart
112-0409	40 mm	38,1 mm	BK7; F -100 mm	CT - 2 mm	ET - 7 mm	31.-	Request	ME	Add to cart
112-0411	40 mm	38,1 mm	BK7; F -150 mm	CT - 3,3 mm	ET - 6 mm	31.-	Request	ME	Add to cart
112-0415	40 mm	38,1 mm	BK7; F -200 mm	CT - 4,1 mm	ET - 6 mm	31.-		ME	Add to cart
112-0419	40 mm	38,1 mm	BK7; F -300 mm	CT - 4,7 mm	ET - 6 mm	31.-		ME	Add to cart

Code	Diameter - Metric	Diameter - English	Specifications (Material, Focal Length)	Centre thickness CT	Edge thickness ET	Item price, USD	In stock	Choose diameter	Add to cart
112-3105	12,5 mm	12,7 mm	FS; F -25 mm	CT - 1,3 mm	ET - 3,2 mm	47.-	Request	ME	Add to cart
112-3109	12,5 mm	12,7 mm	FS; F -50 mm	CT - 2,1 mm	ET - 3 mm	47.-	Request	ME	Add to cart
112-3111	12,5 mm	12,7 mm	FS; F -75 mm	CT - 2,4 mm	ET - 3 mm	46.-	Request	ME	Add to cart
112-3115	12,5 mm	12,7 mm	FS; F -100 mm	CT - 2,6 mm	ET - 3 mm	46.-	Request	ME	Add to cart
112-3117	12,5 mm	12,7 mm	FS; F -125 mm	CT - 2,7 mm	ET - 3 mm	46.-	Request	ME	Add to cart
112-3119	12,5 mm	12,7 mm	FS; F -150 mm	CT - 2,7 mm	ET - 3 mm	46.-	Request	ME	Add to cart
112-3123	12,5 mm	12,7 mm	FS; F -200 mm	CT - 2,8 mm	ET - 3 mm	46.-	Request	ME	Add to cart
112-3127	12,5 mm	12,7 mm	FS; F -250 mm	CT-2,8mm	ET-3mm	46.-	Request	ME	Add to cart
112-3205	25 mm	25,4 mm	FS; F -50 mm	CT - 1,9 mm	ET - 5,6 mm	72.-	Request	ME	Add to cart
112-3209	25 mm	25,4 mm	FS; F -75 mm	CT - 3,1 mm	ET - 5,5 mm	72.-	Request	ME	Add to cart
112-3211	25 mm	25,4 mm	FS; F -100 mm	CT - 3 mm	ET - 4,7 mm	72.-	Request	ME	Add to cart
112-3215	25 mm	25,4 mm	FS; F -125 mm	CT - 3,0 mm	ET - 4 mm	72.-	Request	ME	Add to cart
112-3217	25 mm	25,4 mm	FS; F -150 mm	CT - 3,1 mm	ET - 4,2 mm	72.-	Request	ME	Add to cart
112-3219	25 mm	25,4 mm	FS; F -200 mm	CT - 3,1 mm	ET - 4 mm	71.-	Request	ME	Add to cart
112-3221	25 mm	25,4 mm	FS; F -250 mm	CT - 3,3 mm	ET - 4 mm	71.-		ME	Add to cart
112-3223	25 mm	25,4 mm	FS; F -300 mm	CT - 3,4 mm	ET - 4 mm	71.-	Request	ME	Add to cart
112-3227	25 mm	25,4 mm	FS; F -400 mm	CT - 3,6 mm	ET - 4 mm	71.-	Request	ME	Add to cart
112-3233	25 mm	25,4 mm	FS; F -500 mm	CT - 3,7 mm	ET - 4 mm	71.-	Request	ME	Add to cart
112-3245	25 mm	25,4 mm	FS; F -1000 mm	CT - 3,8 mm	ET - 4 mm	71.-	Request	ME	Add to cart
112-3411	40 mm	38,1 mm	FS; F -100 mm	CT - 2,4 mm	ET - 7 mm	117.-	Request	ME	Add to cart
112-3415	40 mm	38,1 mm	FS; F -150 mm	CT - 3 mm	ET - 6 mm	117.-	Request	ME	Add to cart
112-3419	40 mm	38,1 mm	FS; F -200 mm	CT - 3 mm	ET - 5,2 mm	117.-	Request	ME	Add to cart
112-3427	40 mm	38,1 mm	FS; F -300 mm	CT - 4,3 mm	ET - 5,7 mm	117.-	Request	ME	Add to cart

Code	Diameter - Metric	Diameter - English	Specifications (Material, Focal Length)	Centre thickness CT	Edge thickness ET	Item price, USD	In stock	Choose diameter	Add to cart
112-1105	12,5 mm	12,7 mm	UVFS; F -25 mm	CT - 1,3 mm	ET - 3,2 mm	52.-	Request	ME	Add to cart
112-1109	12,5 mm	12,7 mm	UVFS; F -50 mm	CT - 2,1 mm	ET - 3 mm	52.-		ME	Add to cart
112-1111	12,5 mm	12,7 mm	UVFS; F -75 mm	CT - 2,4 mm	ET - 3 mm	51.-		ME	Add to cart
112-1115	12,5 mm	12,7 mm	UVFS; F -100 mm	CT - 2,6 mm	ET - 3 mm	51.-		ME	Add to cart
112-1117	12,5 mm	12,7 mm	UV FS; F -125	CT - 2,7 mm	ET - 3 mm	51.-		ME	Add to cart
112-1119	12,5 mm	12,7 mm	UVFS; F -150mm	CT - 2,7 mm	ET - 3 mm	51.-		ME	Add to cart
112-1123	12,5 mm	12,7 mm	UVFS; F -200mm	CT - 2,8 mm	ET - 3 mm	51.-		ME	Add to cart
112-1127	12,5 mm	12,7 mm	UVFS; F -250mm	CT - 2,8 mm	ET - 3 mm	51.-		ME	Add to cart
112-1205	25 mm	25,4 mm	UVFS; F -50 mm	CT - 1,9 mm	ET - 5,6 mm	77.-		ME	Add to cart
112-1209	25 mm	25,4 mm	UVFS; F -75 mm	CT - 3,1 mm	ET - 5,5 mm	77.-	Request	ME	Add to cart
112-1211	25 mm	25,4 mm	UVFS; F -100 mm	CT - 3 mm	ET - 4,7 mm	77.-		ME	Add to cart
112-1215	25 mm	25,4 mm	UV FS; F -125 mm	CT - 3,0 mm	ET - 4 mm	77.-	Request	ME	Add to cart
112-1217	25 mm	25,4 mm	UVFS; F -150 mm	CT - 3,1 mm	ET - 4,2 mm	77.-	Request	ME	Add to cart
112-1219	25 mm	25,4 mm	UVFS; F -200 mm	CT - 3,1 mm	ET - 4 mm	76.-		ME	Add to cart
112-1221	25 mm	25,4 mm	UVFS; F -250 mm	CT - 3,3 mm	ET - 4 mm	76.-		ME	Add to cart
112-1223	25 mm	25,4 mm	UVFS; F -300 mm	CT - 3,4 mm	ET - 4 mm	76.-	Request	ME	Add to cart
112-1227	25 mm	25,4 mm	UVFS; F -400 mm	CT - 3,6 mm	ET - 4 mm	76.-		ME	Add to cart
112-1233	25 mm	25,4 mm	UVFS; F -500 mm	CT - 3,7 mm	ET - 4 mm	76.-		ME	Add to cart
112-1245	25 mm	25,4 mm	UVFS; F -1000mm	CT - 3,8 mm	ET - 4 mm	76.-		ME	Add to cart
112-1411	40 mm	38,1 mm	UVFS; F -100mm	CT - 2,4 mm	ET - 7 mm	121.-	Request	ME	Add to cart
112-1415	40 mm	38,1 mm	UVFS; F -150mm	CT - 3 mm	ET - 6 mm	121.-	Request	ME	Add to cart
112-1419	40 mm	38,1 mm	UVFS; F -200mm	CT - 3 mm	ET - 5,2 mm	121.-		ME	Add to cart
112-1427	40 mm	38,1 mm	UVFS; F -300mm	CT - 4,3 mm	ET - 5,7 mm	121.-		ME	Add to cart

Code	Diameter - Metric	Diameter - English	Specifications (Material, Focal Length)	Centre thickness CT	Edge thickness ET	Item price, USD	In stock	Choose diameter	Add to cart
112-5105	12,5 mm	12,7 mm	CaF2; F -25mm	CT - 1,9 mm	ET - 4 mm	104.-	Request	ME	Add to cart
112-5109	12,5 mm	12,7 mm	CaF2; F -50mm	CT - 2 mm	ET - 3 mm	89.-	Request	ME	Add to cart
112-5111	12,5 mm	12,7 mm	CaF2; F -75mm	CT - 2,4 mm	ET - 3 mm	89.-		ME	Add to cart
112-5115	12,5 mm	12,7 mm	CaF2; F -100mm	CT - 2,5 mm	ET - 3 mm	80.-		ME	Add to cart
112-5120	12,5 mm	12,7 mm	CaF2; F -150mm	CT - 2,7 mm	ET - 3 mm	80.-	Request	ME	Add to cart
112-5125	12,5 mm	12,7 mm	CaF2; F -200mm	CT - 1,8 mm	ET - 2 mm	80.-	Request	ME	Add to cart
112-5130	12,5 mm	12,7 mm	CaF2; F -250mm	CT - 1,8 mm	ET - 2 mm	80.-	Request	ME	Add to cart
112-5135	12,5 mm	12,7 mm	CaF2; F -500mm	CT - 1,9 mm	ET - 2 mm	80.-	Request	ME	Add to cart
112-5205	25 mm	25,4 mm	CaF2; F -50 mm	CT - 2,7 mm	ET - 7 mm	138.-		ME	Add to cart
112-5209	25 mm	25,4 mm	CaF2; F -75 mm	CT - 2,8 mm	ET - 5,5 mm	132.-	Request	ME	Add to cart
112-5211	25 mm	25,4 mm	CaF2; F -100 mm	CT - 3 mm	ET - 5 mm	116.-	Request	ME	Add to cart
112-5217	25 mm	25,4 mm	CaF2; F -150 mm	CT - 2,7 mm	ET - 4 mm	109.-		ME	Add to cart
112-5219	25 mm	25,4 mm	CaF2; F -200 mm	CT - 3 mm	ET - 4 mm	109.-		ME	Add to cart
112-5223	25 mm	25,4 mm	CaF2; F -250 mm	CT - 3,2 mm	ET - 4 mm	109.-		ME	Add to cart
112-5230	25 mm	25,4 mm	CaF2; F -500 mm	CT - 2,6 mm	ET - 3 mm	109.-		ME	Add to cart
112-5235	25 mm	25,4 mm	CaF2; F -1000mm	CT - 2,8 mm	ET - 3 mm	109.-		ME	Add to cart

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Plano-Concave Lenses